GULLY OR GULLY PART

This disclosure relates to gullies or gully parts, to a filter for a gully or gully part, to a method of manufacturing a gully or gully part or a filter, a method for fitting a gully or gully part with a filter, and to a method of cleaning a gully or gully part.

Gullies, or storm drains, are used to drain fluids such as rainwater from surfaces on streets, parking lots, footpaths, etc. A gully comprises a gully pot that is usually located below surface level when a gully is installed. A gully usually also comprises a street gutter located approximately on surface level. Rainwater can enter the pot through an inlet covered by the gutter. A liquid such as rainwater may be filtered inside of the gully pot and then discharged from the gully through an outlet port connected to a drain pipe. The drain pipe may, e.g., lead to the sewer system, a river, or a lake, etc.

From time to time, gullies need to be cleaned. On the one hand, debris such as sand and leaves filling up the gully pot may need to be removed from the gully. On the other hand, a part of the gully, and the outlet port, in particular, may become blocked. Therefore, a worker performing maintenance may need to open the gully by taking the gutter away, and also take out removable components (if there are any) from the gully, such as a filter. A removable component such as a filter therefore optionally easily fits through the gully inlet. The worker may then, e.g., suck out debris from the gully using negative air pressure and/or may use a hose to eject pressurized water through the gully (e.g., through the outlet port) to wash away blocking substances. It is sometimes desirable not to make gullies, and the gully inlets, in particular, too large. Thus, the size of the removable components to be put in and taken out of the gully may be limited. Thus, also the capacity of the components of the gullies may be limited by the gully's size, and by the inlet size, in particular.

In addition, performing the maintenance of a gully can be quite cumbersome. For example, a worker wanting to insert a hose and to run high-pressure water through the outlet of the gully may encounter difficulties in identifying where the outlet port is located and/or may have difficulties in putting a hose into the correct position such that water can be squirt through the outlet.

There is a need for gullies or gully parts that address at least one of the abovementioned shortcomings. Also an improved method for cleaning gullies and/or components for gullies would be desirable.

Embodiments of a gully or gully part, gully components, and embodiments of a method in accordance with the present disclosure are defined by the claims below.

GENERAL DESCRIPTION

One aspect of this disclosure relates to a gully or gully part comprising a gully pot, an inlet for receiving a fluid to be drained, an outlet port for being connected to a drain pipe for draining the fluid, and a filter for mounting to the gully or gully pot and for filtering a fluid. The fluid referred to is optionally a liquid. The filter is transformable from an insertion state to a mounting state. The mounting state is for mounting the filter in the gully pot. The insertion state is for inserting the filter through the inlet from outside of the gully or gully part and/or for removing the filter from the gully or gully part through the inlet. The filter does not fit through the inlet in the mounting state but fits through the inlet in the insertion state.

It is, hence, possible to increase the size of the filter as compared to a filter that would, without transformation (e.g., a filter made of a rigid material always maintaining the same overall shape), fit through the inlet. Thus, the inlet need not be made correspondingly bigger in order to increase the size of the filter. This opens up the possibility of increasing the filtering area of a filter used in conjunction with a gully or gully part with an inlet of a certain size. Smaller size of the inlet may be desired, e.g., for aesthetic reasons and/or to be make the gully or gully part safer with respect to the danger of people or objects falling in.

In particular, the filter may be larger in the mounting state than in the insertion state. The filter may have a larger filtering surface than if the filter would need to fit through the inlet in the mounting state. The filter may at least be inserted through the inlet in the insertion state. Optionally, the filter is also removable in the insertion state. This is advantageous as the filter can be removed for cleaning the filter and/or gully or gully part. The disclosure encompasses both embodiments wherein the filter is transformable from the insertion state to the mounting state but not vice versa, as well as embodiments wherein the transformation is possible in both directions.

Optionally, the filter is for being removably mounted to the gully or gully pot, and the filter is optionally transformable between the mounting state and the insertion state. The filter can thus be inserted through the inlet in the insertion state, transformed into the mounting state and mounted in the gully or gully part. The filter can also be transformed back into the insertion state and taken out of the gully or gully part. This makes the cleaning of the filter easier and more convenient. In addition, the gully or gully part can be cleaned without the filter in it. Moreover, the filter can then be put back into the gully or gully part and used again. In addition, a worn filter can also be easily exchanged .

According to some embodiments, the filter is made of a flexible material allowing a reversible deformation of the filter from the mounting state to the insertion state. Such a configuration enables a particularly easy transformation between insertion and mounting state and thus an easy putting the filter into the gully or gully part and taking the filter out. The filter may comprise or consist of one or several plastic materials. For example, the filter may comprise or consist of polyethylene and/or polypropylene and/or recycled polyethylene and/or recycled polypropylene and/or some other flexible plastic material.

The filter may have shape memory. This makes inserting and mounting the filter particularly convenient. The filter may naturally take on the mounting state. A user can then simply elastically deform (e.g., squash) the filter, to transform it into the insertion state and guide it through the gully inlet. The filter can then be let "snap back" in the sense of letting it restore its original shape due to the shape memory, so that the filter takes on the mounting state.

According to some embodiments, the filter comprises at least one inflatable part. The inflatable part is not inflated in the insertion state and is inflated in the mounting state. Inflating the filter is another convenient method of transforming a filter from the insertion state to the mounting state. Non-inflated, the filter is small enough to fit through the inlet. It may then be inflated while already residing inside of the gully pot. This increases the size of the filter and may thus enlarge the available filtering area, thus increasing the filtering efficiency of a gully.

The inflatable part is optionally at least partially deflatable. The disclosure relates both the embodiments wherein the inflatable part is partially deflatable only, as well as to embodiments wherein it is fully deflatable. The filter may also comprise a plurality of inflatable and non- deflatable or partially or fully deflatable parts.

The deflatability is advantageous as the filter can be easily taken out through the inlet in the deflated state. According to some embodiments, deflatable parts are also re-inflatable. This makes the same filter re-usable after having taken it out of a gully. This promotes environment friendliness.

According to some embodiments, the filter comprises at least two separable filter components configured to be releasably fixed to each other. The filter components are separated in the insertion state and fixed to each other in the mounting state. This is another convenient configuration enabling to transform a filter between the insertion and the mounting state. Optionally, the filter components are repeatedly separable and fixable to each other.

Optionally, the filter comprises at least one foldable and/or unfoldable filter component, wherein the filter component is, in the insertion state, folded with respect to the mounting state. Folding is a very easy manner of transforming the filter from the mounting state to the insertion state. Unfolding is convenient for transforming from the insertion state to the mounting state. According to some embodiments, the component is foldable or unfoldable only. According to other embodiments, the component is foldable and unfoldable.

Optionally, the filter comprises a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered. The filtration part surrounds the throughflow opening. A fluid such as rainwater may enter the gully or gully part through the inlet, pass the filter through the throughflow opening, and then rise up in the gully pot and pass through the filtration holes. The size of the filtration holes may be adapted to the purpose of filtering. After passing the filtration holes, the fluid may be led out of the outlet port. This fluid flow path is advantageous as other treatments of the fluid such as dirt settling (sedimentation) can be performed first, before the fluid is filtered. For example, a bottom part of the gully part may serve as a sand sediment space. Sand (and/or other debris) may settle in the gully pot, and the filter may then filter the rising fluid. It is preferable for the throughflow opening to be positioned closer to the inlet than at least (optionally most) of the filtration part when the filter is mounted in the gully or gully part. This enables effectively guiding a liquid to another treatment zone (such as a sedimentation space) before leading it through the filtering part of the filter.

The filtration part comprises at least one curved surface part. The filtration part optionally has the shape of a straight and/or curved truncated cone. The curved surface part enlarges the size of the filtering area, thus making the filter more effective. A straight and/or curved truncated cone shape is especially advantageous for enlarging the size of the filter area. The truncation may be understood to relate to the provision of the throughflow opening. The disclosure also encompasses filters without a throughflow opening. The disclosure also encompasses filters wherein a part of or the entire filter has the shape of a cone (rather than a truncated cone) .

An outer end of the filtration part optionally comprises a wave-shaped end rim. This shape prevents larger debris such as leaves from getting stuck at the rim.

According to some embodiments, the filter comprises a filtering element for coarser filtering and at least one fine filtering element for fine filtering.

The fine filtering element optionally comprises a filter cloth. The filter cloth may be separable from the filtering element for coarser filtering. For example, filter cloth may be optionally stuck on to the rest of the filter, for example a filter main body provided with a filtering part (i.e, the filtering element for coarser filtering) . The filter cloth may be added when finer material is to be expected. This is, for example, especially advantageous when using the gully or gully pot near a sports field (as rubber grains are often used in sports fields and resulting debris may enter a gully or gully pot) or when using it in a location where sand or other small debris is expected to enter the gully or gully pot .

According to some embodiments, a filter cloth is provided on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function.

According to some embodiments, the fine filtering element comprises a loose-woven gauze-like corded cotton cloth.

According to some embodiments, the fine filtering element comprises a fine mesh material.

According to some embodiments, the fine filtering element comprises a gauze.

According to some embodiments, the fine filtering element comprises a sieve material. Optionally, the sieve material is a single perforated layer.

Different types of fine filtering elements may be combined on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function. In other words, upstream of the filtering element for coarser filtering element, a filter cloth, a loose-woven gauze-liked corded cotton cloth, a fine mesh material, a gauze, or a sieve material (e.g., a single perforated layer may be provided), and likewise, the same types of materials may be provided on the downstream side. Also, one or several of the different types of materials may be combined on on side of the filtering element for coarser filtering. Different embodiments relate to the possible combinations of fine filtering elements (e.g., a fine cloth on the upstream side and a gauze on the downstream side, etc., or gauze and filter cloth on one side and a sieve material on the other side, etc . ) .

According to some embodiments, the gully pot comprises a narrower portion and a broader portion. The narrower portion has a smaller cross-sectional area than the broader portion. Further, the narrower portion is located closer to the inlet than the broader portion. The filter is mountable to the gully or gully part such that the filter, when mounted, is at least partially located in the broader portion. The size of the filtering area may thus be made particularly large, thus increasing the filtering efficiency of the filter. In particular, the inlet may be provided in the narrower portion or may have a diameter (maximum opening) that is even smaller than the maximum width and/or diameter of the narrower potion. Nevertheless, by providing the filter in the broader portion (in the mounting state) , the filtering area can be made particularly big.

Optionally, the gully or gully part comprises an outlet cleaning access part for receiving an end of a cleaning hose being inserted through the inlet and for guiding and/or directing the cleaning hose towards the outlet port. The access part is optionally located at the broader portion or further away from the inlet than the broader portion. Optionally, the access part is visible through the inlet from outside of the gully or gully part or configured to be brought into a position so as to be visible through the inlet from outside of the gully or gully part.

A user can thus conveniently insert a hose into the access part in order to clean the outlet port by running water through the outlet port at high pressure. Even although the outlet port might not be visible from outside of the gully or gully port as such, the access part enables a user to immediately find the outlet port. The access part may already be visible or may be made visible, for example, by pushing, pulling a component that makes the access port move, or by taking out a component from the gully pot, etc.

Another aspect of this disclosure relates to a gully or gully part comprising a gully pot, an inlet for receiving a fluid to be drained, an outlet port for being connected to a drain pipe for draining the fluid, and an outlet cleaning access part for receiving an end of a cleaning hose being inserted through the inlet and for guiding and/or directing the cleaning hose towards the outlet port, wherein the gully pot comprises a narrower portion and a broader portion. The narrower portion has a smaller cross-sectional area than the broader portion. The narrower portion is located closer to the inlet than the broader portion. The outlet port is connected to the broader portion.

The access part is visible through the inlet from outside of the gully or gully part or configured to be brought into a position so as to be visible through the inlet from outside of the gully or gully part. What was described above with respect to the narrower and broader portions of gully pots of other embodiments and with respect to the access parts also applies to these embodiments. To avoid repetitions, reference is made to the explanations provided above. However, the present embodiments may nor may not comprise a filter.

Optionally, the narrower portion comprises the inlet and/or a shaft or another component connected to the inlet. The inlet may, e.g., be as broad as the narrower portion or it may be narrower or broader.

The access part may extend towards the inside of the gully pot or may be moveable/transformable into a position in which it extends towards the inside of the gully pot, in order to be visible through the inlet. For example, the access part may extend further towards the inside than an inside wall of the gully pot. According to some embodiments, the access part extends towards a central axis of the gully pot.

The gully pot optionally comprises an inner wall and an opening in said inner wall. The outlet port may be formed by said opening or may be connected to said opening. The access part may extend inward from said opening or may be moveable into a position in which it extends inward from said opening. The extending in from said opening does not mean that the access part needs to be connected to the opening. There may, e.g., be a gap in-between the opening and the access part. Alternatively, the access part may be physically connected to the opening. According to some embodiments, the access part may be transformed from a connected state to a non-connected state, and/or from a non-connected state to a connected state.

The access part optionally comprises a guiding portion for receiving a front end of a cleaning hose being inserted through the inlet and for guiding the front end towards the outlet port upon further insertion of the hose through the inlet. The guiding portion makes the insertion of a hose particularly convenient for a user. In addition, the hose may also be automatically directed in the desired direction as the guiding portion guides the hose after the front end has made contact with the access part.

Optionally, the access part comprises a straight and/or curved surface for receiving a front end of a cleaning hose being inserted through the opening, and/or wherein the access part comprises at least a portion shaped as a curved pipe part and/or a curved pipe socket. The shape of the access part may conveniently guide a hose in the right direction, e.g., towards the outlet port and/or align the hose automatically such that water can then be ejected in the desired direction.

According to some embodiments, the gully or gully part comprises a slider configured to be slideable back and forth between a closed position and an open position. In the closed position, the slider closes off a fluid throughput through the access part in the direction of the outlet port. In the open position, the slider allows a fluid throughput through the access part in the direction of the outlet part. Thus, a fluid may e.g., be conveniently guided through another part of the gully before reaching the outlet port, when the slider closes the access part. A fluid (e.g., rainwater) is then not directly led from the inlet to the outlet port through the access part. This is especially advantageous when using the gully or gully part with a filter. A liquid, such as rainwater, can then first pass the filter before it exits from the gully or gully part through the outlet port. However, through use of the slider, a user can open up direct access to the outlet port and then use a hose to urge pressurized water through the access part and the outlet port .

Optionally, the slider is slideable in an axial direction of the gully or gully part. The slider thus does not take up space excessively in a fluid flow path in the gully. In addition, it is convenient for a user to move the slider in the axial direction.

According to some embodiments, the gully or gully part comprises an inner circumferential wall and a slider guiding mechanism. Optionally the guiding mechanism comprises at least one, optionally two, slider guiding rail (s) . The slider guiding mechanism is optionally provided on said inner circumferential wall and configured to guide the slider upon sliding back and forth towards and away from the inlet.

Optionally, the guiding mechanism guides the guider along the inner circumferential wall, optionally in proximity to the inner circumferential wall, optionally in axial direction.

The slider may comprise an engagement member which is accessible by a user from the inlet and engageable by hand and/or with a tool. This makes it particularly convenient for a user to open or close access to the outlet port via the access part and/or to make the access part visible. For example, a user can just reach into the gully or use a tool at the inlet to engage the slider.

The engagement member is optionally located closer to the inlet than the access part. This makes it particularly convenient to engage the engagement member. The engagement member may, e.g., comprise a handle to be gripped by hand. Alternatively or additionally, it may comprise a protrusion and/or recess and/or hole to be engaged with a tool.

According to some embodiments, the access part comprises a rotatable member which is rotatable between a closed state and an open state. In the closed state, the rotatable member closes off a fluid throughput through the access part in the direction of the outlet port. In the open state, the rotatable member allows a fluid throughput through the access part in the direction of the outlet part.

The rotatable member may offer the particular advantage of conveniently and effectively rotating the access part into a visible position and/or rotating it away in order not to block a part of a fluid flow path. Thus, the advantages of not being in the way of rainwater flowing through the gully but of being made visible easily can be combined.

According to some embodiments, the gully or gully part further comprises a rotation-effecting sliding member connected to the rotatable member. The sliding member is slideable back and forth in an axial direction of the gully or gully part, thereby effecting the rotatable member to rotate back and forth between the closing state and the opening state. Thus, a rotating movement of the sliding member can be effected in simple and convenient way.

The access part may be fixed at at least two points to a part of the gully pot relative to which the sliding member is slideable, the at least two points defining a rotation axis of the access part, and wherein the access part is connected to the sliding member at at least one point. This is a simple construction enabling to effect a rotating movement upon the sliding member. This construction is concurrently also particularly robust.

The gully or gully part optionally comprises at least one curved rail groove, and the access part is moveably supported in the at least one curved rail groove. Further, the sliding member is configured to urge the access part to follow a movement back and forth along the curved rail groove when the access part is pulled and pushed by sliding the sliding member back and forth. This is a simple and robust construction. It allows effectively moving the access part into a position in which a hose is conveniently insertable. Moreover, the sliding member can be conveniently moved out of the way in order to not to interfere excessively with a fluid flow when the gully or gully part is in a normal use state.

According to some embodiments, the gully or gully part further comprises a filter receiving part for receiving a filter for filtering the fluid. The filter receiving part optionally comprises at least one protrusion on an inner wall of the gully pot, the filter receiving part optionally comprising an at least partially annularly protrusion on the inner wall. A filter can be easily accommodated at the filter receiving part. If the filter, for example, comprises shape memory and, after insertion through the line, automatically takes on the shape of the mounting state, the filter may also be very easily (or even automatically) received in the right position, i.e., on or at the filter receiving part.

The gully or gully part optionally further comprises a filter fixedly or removably received at the filter receiving part. The disclosure thus encompasses embodiments without a filter (some of which may be used with an additional filter) . Other embodiments already comprise a filter. Also embodiments that can be used with two or more filters and/or that already comprise two or more filters are envisaged.

According to some embodiments, the gully pot comprises a transition portion with a cross-sectional area between the cross-sectional area of the narrower portion and the cross- sectional area of the broader portion. In other words, the cross-sectional area of the broader portion is larger than the cross-sectional area of the transition portion, and the cross-sectional area of the narrower portion is smaller than the cross-sectional area of the transition portion.

According to some embodiments, the filter receiving part is provided at the broader portion and the outlet port is provided at the transition portion with one end starting at or overlapping with the broader portion. The filter can thus be made particularly large, thus increasing the filtering area. The outlet portion is provided above of at least a part of the filter, thus enabling a fluid to, e.g., run through a fluid throughput of the filter, as described above, and then rise and be filtered by the filter, before exiting through the outlet port. According to some embodiments, the gully or gully comprises a filter for filtering a fluid, wherein the gully pot and the filter are made as one piece. This way, a user need not equip the gully or gully part with a filter. Moreover, the filter may be particularly stable.

According to some embodiments, the gully or gully part comprises a debris trapping portion at an end opposite of the inlet. For example, the debris trapping portion may be at a bottom part of the gully pot. A liquid such as rainwater may, hence, enter the gully or gully part through the inlet, may pass the filter, e.g., through a central throughflow opening, without being filtered, and then pass the debris trapping portion. The debris trapping portion may, e.g., comprise or consist of a sand sediment space. A liquid such as rainwater may pass the debris trapping portion and rise up and get filter in the filtering part of the filter (e.g., a truncated cone-shaped part) . After the filtration, the liquid may be led out of the outlet port.

Optionally, wherein the debris trapping portion is in fluid communication with the inlet through the throughflow opening of a filter mounted in the gully or gully part or integrally formed therewith. This way, rainwater can be first led into the debris trapping portion, before it is led through the filtering part of the filter. Thus, sand and, for example, leafs may remain in the debris trapping portion. This way, the filter does not get jammed and/or blocked too quickly.

According to some embodiments, the outlet port is in fluid communication with the debris trapping portion of the gully or gully part through the filtration part of the filter. Therefore, a fluid passing the gully or gully part gets filtered before being led out of the outlet port.

The gully or gully part optionally comprises an odor trap receiving part for receiving an odor trap device for preventing a gas flowing from the outlet port towards the inlet. Thus, the gully or gully part is capable of being used, e.g., in pedestrian zones, wherein prevention of odors from the sewers rising to street level is desired.

Optionally, at least a part of the odor trap receiving part forms the narrower portion and/or the narrower portion optionally comprises the odor trap receiving part. This way, space in the broader portion is left for components for which occupying a larger amount of space is more important, e.g., for a filter.

According to some embodiments, the odor trap receiving part comprises a curved or a straight wall part extending towards an inside of the of the gully or gully part and away from the inlet. The curved or straight wall part optionally extends towards a central axis of the of the gully or gully part. The curved or straight wall part optionally at least partially (or, optionally, fully) has the shape of a (part of a) cone or truncated cone. Each of these aspects contributes to making it particularly convenient to put an odor trap into the gully or gully part. Optionally, an odor trap is automatically guided to be received at the odor trap receiving part.

Some embodiments of the gully or gully part comprise an odor trap device that is receivable at the odor trap receiving part. Optionally, the odor trap device comprises a cylindrically-shaped main body. This shape is particularly advantageous in not conflicting with efficient fluid flow paths in the gully or gully part. The construction is also particularly robust.

The gully or gully part may comprise an odor trap device made of one piece together with the gully port. This may be a particularly robust construction with high longevity. Optionally, the odor trap device comprises a cylindrically- shaped main body. This shape is particularly advantageous in not conflicting with efficient fluid flow paths in the gully or gully part. The construction is also particularly robust.

The odor trap device may comprise a suspending protrusion for supporting the odor trap device at the odor trap receiving part. The suspending protrusion allows mounting the odor trap device particularly easily. A user may just let the odor trap device fall into place. The suspending protrusion may engage with the odor trap receiving part.

Optionally, the suspending protrusion has an annular ring shape. According to some embodiments, the suspending protrusion has an outer circumference dimensioned to mate with an inner circumference of the odor trap receiving part. This makes the mounting of the odor trap device particularly easy and convenient.

Optionally, the odor trap receiving part is located closer to the inlet than the filter receiving part (if an embodiment comprised both parts) . A filter may thus be located at a broader portion, further down in the gully or gully part. An odor trap device may be located further up, e.g., at a narrower portion. The filter is optionally configured to align the odor trap device, and even more optionally also configured to center the odor trap device with respect to a central axis of the gully or gully part when the odor trap is being inserted. The aligning is advantageous, as a user, when the filter is present in the gully or gully part, can at some point let go of the odor trap device and it will be guided into the right position .

According to some embodiments, the odor trap device protrudes into the throughflow opening of the filter. This construction is particularly space-efficient.

According to some embodiments, the gully or gully part comprises a bottom surface with a curved, concave, and/or dome shape, and/or a bottom surface with an at least partially curved circumference. This shape is particularly convenient for effectively cleaning the gully or gully part. In particular, debris can be suctioned out from the bottom surface particularly effectively. A flat bottom surface and correspondingly sharp angles between a side wall and the bottom surface may be harder to clean and dirt may remain in the corners. The a curved, concave, and/or dome shaped bottom surface, and/or bottom surface with an at least partially curved circumference can be cleaned very well everywhere, including the angles due to the curved shape and, optionally, softer angles in corners.

At least a part of the gully or gully part may be injection molded and/or rotation molded and/or blow molded and/or extruded. The production methods increase manufacturability. Especially injection molding and/or rotation molding are particularly advantageous.

According to some embodiments, at least a part of the gully or gully part may comprise or consist of polypropylene and/or recycled polypropylene and/or polyethylene and/or recycled polyethylene and/or acrylonitrile butadiene styrene and/or polyvinylchloride and/or some other plastic material.

According to some embodiments, the outlet port of the gully or gully part comprises a pipe piece and/or a pipe socket. This type of outlet port can be conveniently attached to a pipe for guiding further drain fluids.

Some embodiments of the gully or gully part comprise at least one handle for rotating and/or carrying the gully or gully part on an outside of the gully or gully part. This makes transportation of the gully or gully part particularly convenient. In addition, the handle or handles may also be used for positioning the gully or gully part upon installation. Moreover, the handle or handles may aid a user in precisely aligning the gully or gully part, e.g., by rotating it when it is already positioned on a ground (e.g., on mud or sand) and when a part of the gully or gully part may already be covered with soil, mud, and/or sand, etc.

According to some embodiments, the gully or gully part comprises a foot step for fixing and/or leveling the gully or gully part on an outside of the gully or gully part. The foot step is particularly convenient as a user can put a lot of force onto the step with a foot, and because a user can put weight onto the gully or gully part when fine-tuning its position during installation, while, q . C[ . , rotating and pushing/pulling by hand with one or several handles.

Optionally, the foot step comprises an at least partially annular foot member extending laterally from the gully pot. This makes it easy to use a fit to level and/or fix the gully or gully part. Optionally, the gully pot is, on an outer surface thereof, provided with a rib structure, said rib structure leaving space for a user to insert a foot above of the foot step. The rib structure may increase stability of the gully or gully part when mounted. However, the rib structure is made so as not to intervene with a user's adjustment by foot with a foot step.

The handle or the two or more handles and the foot step or the foot steps are optionally aligned such that a user can simultaneously operate the handle (s) with one or two hands, and the foot step with a foot or with two feet. This makes positioning, leveling, and fixing particularly easy and convenient .

Another aspect of this disclosure relates to a gully or gully part comprising a gully pot, an inlet for receiving a fluid to be drained, and an outlet port for being connected to a drain pipe for draining the fluid. The gully pot comprises a narrower portion and a broader portion. The narrower portion is located closer to the inlet than the broader portion. The narrower portion has a smaller cross-sectional area than the broader portion. The narrower portion has a minimum diameter. The minimum diameter may, for some embodiments, just be the diameter, e.g., when the narrower portion has a circular cross-section. If the diameter of the narrower portion varies, the term "minimum diameter" is used to refer to the minimal value of the diameter.

Further, the gully or gully part in accordance with this aspect comprises a filter mounted in the gully pot, wherein a distance between at least two points on the filter is larger than the minimum diameter of the narrower portion of the gully pot. Thus, the size of the filter in relation to the narrower portion of the gully or gully part is made particularly big. Optionally, also the filtering area is thus made large (in particular larger than what would be possible if the filter were to be positioned in the narrower portion) . Thus, the filter capacity/efficiency is increased. These embodiments of a gully or gully part may or may not comprise an access part- The filter may or may not be transformable between different states.

The gully or gully part may comprise a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered, the filtration part surrounding the throughflow opening. A fluid such as rainwater may enter the gully or gully part through the inlet, pass the filter through the throughflow opening and then rise up in the gully pot and pass through the filtration holes. The size of the filtration holes may be adapted to the purpose of filtering. After passing the filtration holes, the fluid may be led out of the outlet port. This fluid flow path is advantageous as other treatments of the fluid such as dirt settling can be performed first, before the fluid is filtered. For example, a bottom part of the gully part may serve as a sand sediment space. Sand (and other dirt) may settle in the gully pot, and the filter may then filter the rising fluid. Optionally, the filtration part comprises at least one curved surface part, the filtration part optionally having the shape of a straight and/or curved truncated cone. The curved surface part enlarges the size of the filtering area, thus making the filter more effective. A straight and/or curved truncated cone shape is especially advantageous for enlarging the size of the filter area. The truncation may be understood to relate to the provision of the throughflow opening.

An outer end of the filtration part optionally comprises a wave-shaped end rim. This shape prevents larger debris such as leaves from getting stuck at the rim.

According to some embodiments, the filter comprises a filtering element for coarser filtering and at least one fine filtering element for fine filtering. The fine filtering element optionally comprises a filter cloth. The filter cloth may be separable from the filtering element for coarser filtering. For example, filter cloth may be optionally stuck on to the rest of the filter, for example a filter main body provided with a filtering part (i.e, the filtering element for coarser filtering) . The filter cloth may be added when finer material is to be expected. This is, for example, especially advantageous when using the gully or gully pot near a sports field (as rubber grains are often used in sports fields and resulting debris may enter a gully or gully pot) or when using it in a location where sand or other small debris is expected to enter the gully or gully pot.

According to some embodiments, a filter cloth is provided on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function.

According to some embodiments, the fine filtering element comprises a loose-woven gauze-like corded cotton cloth.

According to some embodiments, the fine filtering element comprises a fine mesh material.

According to some embodiments, the fine filtering element comprises a gauze.

According to some embodiments, the fine filtering element comprises a sieve material. Optionally, the sieve material is a single perforated layer.

Different types of fine filtering elements may be combined on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function. In other words, upstream of the filtering element for coarser filtering element, a filter cloth, a loose-woven gauze-liked corded cotton cloth, a fine mesh material, a gauze, or a sieve material (e.g., a single perforated layer may be provided), and likewise, the same types of materials may be provided on the downstream side. Also, one or several of the different types of materials may be combined on on side of the filtering element for coarser filtering. Different embodiments relate to the possible combinations of fine filtering elements (e.g., a fine cloth on the upstream side and a gauze on the downstream side, etc., or gauze and filter cloth on one side and a sieve material on the other side, etc . ) .

Another aspect of this disclosure relates to a filter for filtering a fluid and for being mounted in a gully or gully part according to any one of the aspects described above. The filter is transformable from an insertion state for inserting the filter through the inlet from outside of the gully or gully part to a mounting state for mounting the filter in the gully or gully part. At least one dimension of the filter is smaller in the insertion state than in the mounting state for enabling fitting the filter through an inlet of the gully or gully part in the insertion state, wherein the filter would not fit through the inlet in the mounting state.

The mounting state is for mounting the filter in a gully pot. The insertion state is for inserting the filter through an inlet from outside of a gully or gully part and/or for removing the filter from a gully or gully part through the inlet. The filter does not fit through the inlet in the mounting state but fits through the inlet in the insertion state .

It is, hence, possible to increase the size of the filter as compared to a filter that would, without transformation, fit through an inlet. In other words, the filter can be made smaller (in at least one direction) by transforming the filter from the mounting state to the insertion state.

In particular, the filter may be larger in the mounting state than in the insertion state and may have a larger filtering surface, in the mounting state, than if the filter would remain in the insertion state. The filter may at least be inserted through the inlet in the insertion state. Optionally, the filter is also removable in the insertion state. This is advantageous as the filter can be removed for cleaning the filter and/or gully or gully part. The disclosure encompasses both embodiments wherein the filter is transformable from the insertion state to the mounting state but not vice versa.

The filter is optionally also transformable from the mounting state to the insertion state for removing the filter from the gully or gully part.

According to some embodiments, the filter is made of flexible material allowing a reversible deformation of the filter from the mounting state to the insertion state. Such a configuration enables a particularly easy transformation between insertion and mounting state and thus an easy putting the filter into the gully or gully part and taking the filter out. The filter may comprise or consist of one or several plastic materials. For example, the filter may comprise or consist of polyethylene and/or polypropylene and/or recycled polyethylene and/or recycled polypropylene and/or some other flexible plastic material.

The filter may have shape memory. This makes inserting and mounting the filter in (to) a gully particularly convenient. The filter may naturally take on the mounting state. A user can then simply elastically deform (e.g., squash) the filter, to transform it into the insertion state, and put it through a gully inlet. The filter can then be let snap back, due to the shape memory, into the mounting state. According to some embodiments, the filter comprises at least one inflatable part, wherein the inflatable part is not inflated in the insertion state and is inflated in the mounting state. Inflating the filter is another convenient method of transforming a filter from the insertion state to the mounting state. Non-inflated, the filter is small enough to fit through a smaller gully inlet. The filter part is then inflated. This increases the size and may thus enhance the filtering area available. According to some embodiments, the entire filter is inflatable.

The inflatable part is optionally at least partially deflatable. The disclosure relates both the embodiments wherein the inflatable part is partially deflatable only, as well as to embodiments wherein it is fully deflatable. The filter may also comprises a plurality of inflatable and non- deflatable or partially or fully deflatable parts. Also the entire filter may be deflatable.

The deflatability is advantageous as the filter can be easily taken out through a gully inlet in the deflated state. According to some embodiments, deflatable parts are also re- inflatable. This makes the filter re-usable after having taken it out of a gully.

According to some embodiments, the filter comprises at least two separable filter components configured to be releasably fixed to each other. The filter components are separated in the insertion state and fixed to each other in the mounting state. This is another convenient configuration enabling to transform a filter between the insertion and the mounting state. Optionally, the filter components are repeatedly separable and fixable to each other. Optionally, the filter comprises at least one foldable and/or unfoldable filter component, wherein the filter component is, in the insertion state, folded with respect to the mounting state. Folding is a very easy manner of transforming the filter from the mounting state to the insertion state. Unfolding is convenient for transforming from the insertion state to the mounting state. According to some embodiments, the component is foldable or unfoldable only. According to other embodiments, the component is foldable and unfoldable.

Optionally, the filter comprises a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered, the filtration part surrounding the throughflow opening. When the filter is placed in a gully, a fluid such as rainwater may enter the gully through an inlet, pass the filter through the throughflow opening and then rise up in a gully pot and pass through the filtration holes. The size of the filtration holes may be adapted to the purpose of filtering. After passing the filtration holes, the fluid may be led out of a gully outlet port. This filter thus can be used as a component in an advantageous fluid flow path enabling other fluid treatments of the fluid (in addition to the filtering treatment) such as dirt settling / sedimentation, to be performed before the filtering. For example, a bottom part of the gully part may serve as a sand sediment space. Sand (and other dirt) may settle in the gully pot, and the filter may then filter the fluid when a fluid level rises.

The filtration part optionally comprises at least one curved surface part. In addition thereto or alternatively, the filtration part optionally having the shape of a straight and/or curved truncated cone. The curved surface part enlarges the size of the filtering area, thus making the filter more effective. A straight and/or curved truncated cone shape is especially advantageous for enlarging the size of the filter area. The truncation may be understood to relate to the provision of the throughflow opening.

An outer end of the filtration part optionally comprises a wave-shaped end rim. This shape prevents larger debris such as leaves from getting stuck at the rim.

According to some embodiments, the filter comprises a filtering element for coarser filtering and at least one fine filtering element for fine filtering. The fine filtering element optionally comprises a filter cloth. The filter cloth may be separable from the filtering element for coarser filtering. For example, filter cloth may be optionally stuck on to the rest of the filter, for example a filter main body provided with a filtering part (i.e, the filtering element for coarser filtering) . The filter cloth may be added when finer material is to be expected. This is, for example, especially advantageous when using the gully or gully pot near a sports field (as rubber grains are often used in sports fields and resulting debris may enter a gully or gully pot) or when using it in a location where sand or other small debris is expected to enter the gully or gully pot.

According to some embodiments, a filter cloth is provided on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function. According to some embodiments, the fine filtering element comprises a loose-woven gauze-like corded cotton cloth.

According to some embodiments, the fine filtering element comprises a fine mesh material.

According to some embodiments, the fine filtering element comprises a gauze.

According to some embodiments, the fine filtering element comprises a sieve material. Optionally, the sieve material is a single perforated layer.

Different types of fine filtering elements may be combined on one side of or on both sides of the filtering element for coarser filtering. This allows providing a fine filtering function upstream of, downstream of, or both upstream and downstream of the coarse filtering function. In other words, upstream of the filtering element for coarser filtering element, a filter cloth, a loose-woven gauze-liked corded cotton cloth, a fine mesh material, a gauze, or a sieve material (e.g., a single perforated layer may be provided), and likewise, the same types of materials may be provided on the downstream side. Also, one or several of the different types of materials may be combined on on side of the filtering element for coarser filtering. Different embodiments relate to the possible combinations of fine filtering elements (e.g., a fine cloth on the upstream side and a gauze on the downstream side, etc., or gauze and filter cloth on one side and a sieve material on the other side, etc . ) . Another aspect of this disclosure concerns a method for manufacturing a gully or gully part in accordance with any one or several aspect (s) described above. Optionally, the method includes a step of injection molding and/or rotation molding and/or blow molding and/or extruding at least a part of the gully or gully part or the entire gully or gully part.

According to some embodiments, the method comprises a step of manufacturing a first part and a step of manufacturing a second part, wherein these manufacturing steps may be simultaneously performed for some embodiments and sequentially performed for other embodiments. The method further comprises connecting/j oining the first and the second parts to form a gully pot.

Optionally, the first and the second part or both injection molded, and the connection step is a step of connecting a first injection molded part and a second injection molded part so as to form the gully pot.

The disclosure also relates to a method for manufacturing a filter in accordance with any one or several aspect (s) described above. Optionally, the method includes a step of injection molding and/or rotation molding and/or blow molding and/or extruding at least a part of the filter or the entire filter .

Another aspect of this disclosure relates to a method of fitting the filter in accordance with any one or several of the aspects described above to the gully or gully part in accordance with any one or several of the aspects described above. The method comprises the steps of inserting the filter in the insertion state into the gully or gully part, transforming the filter from the insertion state to the mounting state, and mounting the filter in the gully or gully part .

This method of fitting a filter to a gully or gully part allows putting a filter which is, in the state in which it is mounted in the gully or gully part (in its mounting state) , in principle, too big to fit through the inlet of the gully or gully part. Thus, the filtering area and the filter efficiency can be made large even when an inlet of a gully or gully part is not made larger than desired.

Another aspect of this disclosure relates to a method of cleaning a gully or gully part in accordance with any one or several aspects as described above. The method comprises the steps of: transforming the filter from the mounting state to the insertion state and taking the filter out of the gully or gully part through the inlet, cleaning the gully or gully part, reintroducing the filter, in the insertion state, through the inlet, and transforming the filter from the insertion state to the mounting state and re-mounting the filter in the gully or gully part. This makes the cleaning of the gully or gully part particularly simple and convenient. The filter may, optionally, be used and re-used, making the entire method environment-friendly due to avoiding unnecessary waste and replacement of filters.

When applied to a gully or gully part used with an odor trap device, the method optionally comprises the steps of: taking the odor trap device out through the inlet before the step of transforming the filter and taking the filter out, and reintroducing the odor trap device through the inlet after the step of transforming and re-mounting the filter. According to some embodiments, the step of cleaning the gully or gully part comprises the step of suctioning debris out of the gully or gully part.

Preferred embodiments of the cleaning method, when applied to a gully or gully part with an access part as described above, comprise the steps of: introducing a cleaning hose through the inlet, receiving the cleaning hose on or at the access part, and urging water through the outlet port while the cleaning hose is received on the access part. Due to the provision of the access part, the use of the hose is made particularly convenient and simple for the user. The outlet port is immediately identifiable by a user. It is, in this regard, especially convenient if the access part is visible from the inlet or can be brought into a visible state. In the latter case, the method optionally comprises the step of bringing the access part into a position so as to be visible through the inlet before the step of introducing the cleaning hose .

Another aspect of this disclosure relates to a gully or gully part comprising an inlet for receiving a fluid to be drained, an outlet port for being connected to a drain pipe for draining the fluid, and at least one handle for rotating and/or carrying the gully or gully part, the handle being located on an outside of the gully or gully part. This embodiment may or may not comprise an access part and/or a filter .

The handle makes transportation of the gully or gully part particularly convenient. In addition, the handle or handles may also be used for positioning the gully or gully part upon installation. Moreover, the handle or handles may aid a user in precisely aligning the gully or gully part, e.g., by rotating it when it is already positioned on a ground (e.g., on mud or sand) and when a part of the gully or gully part may already be covered with soil, mud, and/or sand, etc.

Another aspect of this disclosure relates to a gully or gully part comprising an inlet for receiving a fluid to be drained, an outlet port for being connected to a drain pipe for draining the fluid, and a foot step for fixing and/or leveling the gully or gully part using a foot, the foot step being located on an outside of the gully or gully part. The foot step is particularly convenient as a user can put a lot of force onto the step with a foot, and because a user can put weight onto the gully or gully part when fine-tuning its position during installation, while, e.g., rotating and pushing/pulling by hand with one or several handles.

Optionally, the foot step comprises an at least partially annular foot member extending laterally from the gully pot. This makes it easy to use a fit to level and/or fix the gully or gully part.

Optionally, the gully pot is, on an outer surface thereof, provided with a rib structure, said rib structure leaving space for a user to insert a foot above of the foot step. The rib structure may increase stability of the gully or gully part when mounted. However, the rib structure is made so as not to intervene with a user's adjustment by foot with a foot step .

The handle or the two or more handles and the foot step or the foot steps are optionally aligned such that a user can simultaneously operate the handle (s) with one or two hands, and the foot step with a foot or with two feet. This makes positioning, leveling, and fixing particularly easy and convenient .

Additional advantages and features of the present disclosure, that can be realized on their own or in combination with one or several features discussed above, insofar as the features do not contradict each other, will become apparent from the following description of preferred embodiments.

The description is given with reference to the accompanying drawings, in which:

Fig. 1 depicts a gully in accordance with the present disclosure ;

Fig . 2 depicts an embodiment of a filter in accordance with the present disclosure;

Fig. 3A depicts an embodiment of a gully in accordance with the present disclosure in a state while a filter is being fit;

Fig. 3B depicts an embodiment of a gully in accordance with the present disclosure in a state when a filter is mounted at a filter receiving part;

Fig. 4A depicts an embodiment of a filter in accordance with the present disclosure, wherein the filter is in the insertion state; Fig. 4B depicts an embodiment of a filter in accordance with the present disclosure, wherein the filter is in the mounting state;

Fig . 5 depicts an embodiment of a gully in accordance with the present disclosure;

Fig. 6A is a schematic perspective view of an embodiment of a gully in accordance with the present disclosure;

Fig. 6B is a view through the inlet of the gully of Fig.

6A;

Fig. 7A is a schematic perspective view of an embodiment of a gully in accordance with the present disclosure;

Fig. 7B is a view through the inlet of the gully of Fig.

7A;

Fig. 8A depicts an embodiment of a gully part in accordance with the present disclosure wherein an access part is closed by a slider;

Fig. 8B depicts a view into the gully part of Fig. 8A through its inlet;

Fig. 8C depicts an embodiment of a gully part in accordance with the present disclosure wherein an access part is opened by a slider;

Fig. 9A depicts an embodiment of a gully part in accordance with the present disclosure wherein an access part is closed by a rotatable member; Fig. 9B depicts a view into the gully part of Fig. 9A through its inlet;

Fig. 9C depicts an embodiment of a gully part in accordance with the present disclosure wherein an access part is opened by a rotatable member;

Fig. 9D depicts a view into the gully part of Fig. 9C through its inlet; and

Fig. 10 depicts an embodiment of a gully part in accordance with the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In the following description accompanying the various figures, like parts are denoted with like reference signs.

Fig. 1 depicts a gully 1, or a storm drain. It comprises a gully pot 1 forming a main part of the gully 1 in which a fluid such as rainwater may be treated (filtered, etc.) . The gully 1 further comprises an inlet 12 through which rainwater may enter the gully 1. The present embodiment of a gully 1 may, e.g., be used to drain rainwater from a road or pavement .

The inlet 12 is, during normal use, optionally covered by a gutter (not shown) . This prevents a pedestrian from getting injured and against larger objects accidentally falling into the gully 1. The gully 1 further comprises an outlet port 13 which is connected to a drain pipe 14 (not part of the gully 1) . The gully of Fig. 1 further comprises a handle 15 for rotating and/or carrying the gully 1. The handle 15 is located on an outside of the gully 1. It is attached to an outer circumferential wall of the gully pot 11. The handle 15 is particularly convenient for transporting the gully 1 but also for positioning it correctly during installation.

The embodiment of Fig. 1 additionally comprises a rib structure comprising a plurality of ribs 16 on the outer circumferential surface. These stabilize the gully 1 when positioned in soil, mud, sand, etc.

The outlet port 13 comprises pipe piece 60 (see Fig. 3A) in the form of a pipe socket to be connected to a drain pipe 14.

The inlet 12 of the gully 1 of Fig. 1 has a circular cross- sectional shape. However, the disclosure also relates to embodiments wherein the inlet has a different cross-sectional shape .

As becomes immediately apparent from Fig. 1, the diameter d of the inlet 12 is smaller than the diameter D of the gully pot 11 at a lower position. In fact, the gully 1 comprises an entire narrower portion 17 having a smaller diameter (substantially the diameter d of the inlet 12) and located closer to the inlet 12, and a broader portion 18 with the larger diameter D.

Fig. 2 shows an embodiment of a filter 2 in accordance with the present disclosure. This filter 2 is configured to be used with the gully 1 of Fig. 1. However, in the state shown in Fig. 2, it does not fit through the inlet 12, as its own diameter D is larger than the inlet diameter d. The filter 2 is, however, transformable between an insertion state, in which it is made smaller and in which it fits through the inlet 12, and a mounting state (the state shown in Fig. 2) in which it is to be received/mounted in the gully 1.

The filter 2 of Fig. 2 can be transformed both from the mounting state to the insertion state, and vice versa. However, the disclosure also encompasses embodiments wherein the filter is transformable from the insertion state to the mounting state only.

The filter 2 of Fig. 2 is made of a flexible material which is easily deformable by hand. A user can thus easily squash the filter 2 a bit and deform it. It is reversibly deformable from the mounting state to the insertion state. In other words, the user can just exert pressure onto the filter (e.g., by hand) and force it through the inlet 12 of the gully 1.

The filter 2 of Fig. 2 has shape memory. This means that as soon as the user no longer exerts pressure onto the filter, it has the tendency of returning to the shape shown in Fig. 2 (to the mounting state) .

The filter 2 of Fig. 2 comprises a filtration part 21 comprising a plurality of filtration holes 22. The filter 2 also comprises a central throughflow opening 23 allowing a fluid (such as rain water) to pass the filter 2 without being filtered. The filtration part 21 surrounds the throughflow opening 23. The filter 2 also comprises a wave-shaped end rim 24. This shape prevents larger debris such as leaves to get stuck at the rim.

The filtration part 21 of the filter 2 of Fig. 2 has the shape of a straight truncated cone. Other preferred embodiments of the filter have a filtration part with an at least partially curved shape and/or with a curved truncated cone shape. Alternatively, the filter may also have a straight and/or curved cone shape.

Fig. 3A shows a state in which the filter 2 has been inserted into the gully 1 through the inlet 12. During insertion through the narrower portion 17, the filter 2 had been slightly squashed in order to make it be in the insertion state. In Fig. 3A, the filter 2 has already, by virtue of its shape memory, restored its original form (the mounting state) .

The gully 1 comprises a filter receiving part 19 in the form of an annular protrusion formed on an inner circumferential wall of the gully pot 11. The filter 2 is mounted at the filter receiving part 19, as shown in Fig. 3B. Most of the filter 2 of this embodiment is received/positioned in the broader portion 18 of the gully 1 when mounted in the gully 1.

When the filter 2 is positioned, as shown in Fig. 3B, water can enter the gully 1 through the inlet 12 and pass the filter through the central throughflow opening 23.

The gully 1 further comprises a debris trapping portion 3 at the bottom of the gully pot 11. The debris trapping portion 3 is located at the opposite end of the gully 1 with respect to the inlet 12. The debris trapping portion 3 serves, e.g., as a sand sediment space. The debris trapping portion 3 is in fluid communication with the inlet 12 via the throughflow opening 23 of the filter 2.

The outlet port 13 of the gully 1 is in fluid communication with the debris trapping portion 3 via the filtration part 21 of the filter 2. When the fluid level rises in the gully pot 11, and when debris has been trapped in the debris trapping portion 3, the fluid (e.g., rainwater) is filter by the filtration part 21 of the filter 2 and then reaches the outlet port 3 to be drained.

In the case of the embodiment explained with reference to Figs. 1, 2, 3A and 3B, the gully 1 and the filter 2 are thus separable components. The disclosure also, however, relates to embodiments of gullies, wherein the filter is an integral part of the gully. In other words, the disclosure also relates to embodiments wherein filter and gully are made as one piece and are not separable.

Fig. 4A depicts an embodiment of a filter 2 in accordance with the present disclosure, wherein the filter is in the insertion state. The filter 2 fits through an inlet 12 of a gully 1 in the insertion state for which it would be too big in the mounting state. Fig. 4B depicts the filter 2 is in the mounting state in which it is to be mounted in a gully 1.

The filter 2 of Fig. 4 comprises a plurality of foldable and unfoldable filter components 25 which are, in the insertion state (see Fig. 4A) folded with respect to the mounting state (see Fig. 4B) . Alternative embodiments of filters 2, for example, involve a filter comprising at least two separable filter components which are releasably fixeable to each other, or a filter comprising at least one inflatable and/or deflatable part.

The separating of filter components is a form of transforming a filter from the mounting state to the insertion state, and the joining of the components is a transforming from the insertion state to the mounting state. The inflating may be a form transforming from the insertion state to the mounting state, and the deflating may be a transforming from the mounting state to the insertion state.

Fig. 5 depicts an embodiment of a gully 1 in accordance with the present disclosure. A filter 2 in accordance with the present disclosure is mounted at the filter receiving part 19. The filter receiving part 2 is an annular protrusion formed on an inner circumferential wall of the gully pot 11.

The gully 1 of Fig. 5 comprises a narrower portion 17 with a smaller cross-sectional area and a broader portion 18 with a larger cross-sectional area. As the narrower portion 17 and the broader portion 18 are both substantially cylindrical, the mentioned comparison between their cross-sectional areas can also be expressed as the broader portion 18 having a larger diameter than the narrower portion 17.

The gully 1 further comprises a transition portion 27 with a cross-sectional area between the cross-sectional area of the narrower portion 17 and the cross-sectional area of the broader portion 18. The diameter of the transition portion 27 provides a transition between the diameters of the narrower portion 17 and the broader portion 18, respectively. The filter receiving part 19 is provided at the broader portion 18. The filter 2 is, for the most part, mounted in the broader portion 18. For this embodiment, the upper end of the filter 2 slightly reaches into the transition portion 27.

The outlet port 13 is provided on the height (in axial direction of the gully 1) of the transition portion 27. The upper end of the outlet port 13 is roughly on par (in axial direction) with the boundary between the transition portion 27 and the narrower portion 17.

The gully 1 of Fig. 5 further comprises an odor trap receiving part 40 for receiving an odor trap device 4. Fig. 5 shows the gully 1 in a state wherein an odor trap device 4 is mounted at the odor trap receiving part 40. The odor trap device 4 is located closer to the inlet 12 than the filter 2.

The odor trap device 4 includes a gas lock and prevents a gas from flowing from the outlet port 13 to the inlet 12. In the case of this embodiment, the odor trap receiving part 40 forms a particularly narrow portion of the gully 1.

The odor trap receiving part 40 comprises a cylindrically- shaped main body 42, and a curved wall part 41 extending towards the inside of the gully 1 and away from the inlet 12. It guides the odor trap device 4 into the correct position so that mounting it is particularly convenient for a user to insert the odor trap device 4. The user can insert it through the inlet 12 and then simply let go. The device 4 will automatically be caught by the odor trap receiving part 40, and by the wall part 41, in particular. In the case of the embodiment of Fig. 5, the gully pot 11 and the odor trap device 4 are two separable components. However, the disclosure also relates to embodiments wherein the gully pot 11 and the odor trap device 4 are integrally formed. In other words, in the case of other embodiments, the gully pot 11 (or any other component of the gully 1) and the odor trap device 4 may be made as one piece.

The odor trap device 4 comprises a suspending protrusion 43 for supporting the odor trap device 4 at the odor trap receiving part 40. The suspending protrusion 43 of this embodiment has an annular ring shape, wherein the outer circumference of the suspending protrusion 43 is dimensioned for mating with an inner circumference of the odor trap receiving part 40.

In the case of the embodiment of Fig. 5, the filter 2 is configured to align the odor trap device 4. The filter 2 is configured to center the odor trap device 4 with respect to the central axis of the gully 1 when the odor trap device 4 is being positioned after insertion.

The filter 2 positions the odor trap device 4 correctly by virtue of its throughflow opening 13 as the odor trap device 2 is dimensioned to fit into the opening 13. In the mounted state, the odor trap device 4 protrudes into the throughflow opening 13 of the filter 2 (see Fig. 5) .

The gully 1 of Fig. 5 also comprises a bottom surface 50 with a curved shape. This shapes increases the cleanable part of the surface with respect to a case wherein the bottom surface would be flat and a right angle would exist between the bottom surface and adjacent side walls. In the latter case, the suctioning of debris, especially in the corner portions, for cleaning is difficult and, sometimes, impossible.

The gully 1 of Fig. 5 as well as the filter 2, are injection molded. However, the disclosure encompasses other embodiments wherein the gully and/or filter have been produced with a different manufacturing method. Especially preferable manufacturing methods encompass injection molding, rotation molding, blow molding, and/or extruding.

To clean the gully 1 of Fig. 5, a worker may take out the odor trap device 4 and the filter 2 from the inlet 12 of the gully 1. Then, the user may, e.g., suction debris from the lower part of the gully 1, and, in particular, from the bottom surface 50.

Fig. 6A is a perspective view of an embodiment of a gully 1 in accordance with the present disclosure. This embodiment comprises a handle 15 for rotating and/or positioning the gully 1 upon installation, and for convenient carrying of the gully 1.

The gully 1 comprises a narrower portion 17 with a smaller cross-sectional area, and a broader portion 18 with a larger cross-sectional area than the narrower portion 17. In this case, the cross-sectional area of the part coined the broader portion 18 is not the same everywhere. The broader portion 18 is in this case labelled to comprise a transition zone wherein the diameter of the broader portion 18 increases from the smaller diameter of the narrower portion 17 to the maximum diameter of the gully 1. The gully 1 comprises an inlet 12 for receiving a liquid (namely rainwater) to be drained and an outlet port 13 connected to a drain pipe 14 (not part of the gully 1) . The narrower portion 17 is located closer to the inlet 12 than the broader portion 18. In fact, for aesthetic purposes, also the diameter of the inlet 12 is chosen rather small compared to the diameter of the broader portion 18.

In addition, the outlet port 13 is connected to the broader portion 18. This means that it is not easy (depending on the embodiment: even if impossible) to identify where the outlet port 12 is when looking into the gully 1 through the inlet 12.

Fig. 6B illustrates the view a worker has into the gully 1 through the inlet 2. The outlet port 13 is hidden somewhere behind the region at which the arrow P points. In the case of this embodiment, a worker may not be able to see where the outlet port 13 is located. Thus, it may be a substantive effort to insert a hose into the outlet port from the inlet 12 in order to eject water through the outlet port 13 to clean it and/or to, e.g., wash out substances blocking the drain pipe 14.

It is easier for the worker to find the outlet port 13 when looking through the inlet 12 in the case of the embodiment of Fig. 7. Also the gully 1 of Figs. 7A and 7B comprises an inlet 12 for receiving a liquid (namely rainwater) to be drained and an outlet port 13 connected to a drain pipe 14 (not part of the gully 1) . The narrower portion 17 is located closer to the inlet 12 than the broader portion 18. In fact, for aesthetic purposes, also the diameter of the inlet 12 is chosen rather small compared to the diameter of the broader portion 18.

The embodiment of Figs. 7A and 7B further comprises an outlet access part 70 for receiving an end of a hose being inserted through the inlet 12 and for guiding and directing the cleaning hose towards the outlet port 13. The access part 70 is provided in the form of a bridge element extending towards the inside of the gully pot 11, namely towards the central axis of the gully pot 11.

The access part 70 is visible for a worker from the inlet 12 (see Fig. 7B) . This makes cleaning the outlet port 13 (urging water through it with a hose received on the access part 70) easy and convenient. In particular, it saves time for a worker when performing maintenance. After taking a lid of the gully 1 and, if necessary, taking out components such as an odor trap device and/or a filter, the worker immediately sees where to place the hose.

In the case of the embodiment of Figs. 7A and 7B, the gully pot 11 comprises an inner wall 71, and the inner wall 71 comprises an opening 72. The outlet port 13 is connected to said opening 72. The access part 70 extends inwards into the gully pot 11 from said opening 72.

The access part 70 of this embodiment comprises a straight surface for receiving a front end of a hose. However, the disclosure also encompasses access parts 70 with different shapes (e.g., a curved surface, etc.).

Fig. 8A depicts an embodiment of a gully part 100 in accordance with the present disclosure. The gully part 100 comprises a narrower portion 17 with a smaller cross- sectional area, and a broader portion 18 with a larger cross- sectional area than the narrower portion 17. In this case, the cross-sectional area of the part coined the broader portion 18 is not the same everywhere. The broader portion 18 is in this case labelled so as to comprise a transition zone wherein the diameter of the broader portion 18 increases from the smaller diameter of the narrower portion 17 to the maximum diameter of the gully part 100.

The gully part 100 comprises an inlet 12 for receiving a liquid (namely rainwater) to be drained and an outlet port 13 (see Fig. 8B) connected to a drain pipe 14 (not shown) . The narrower portion 17 is located closer to the inlet 12 than the broader portion 18. In fact, for aesthetic purposes, also the diameter of the inlet 12 is chosen rather small compared to the diameter of the broader portion 18. In addition, the outlet port 13 is connected to the broader portion 18.

The gully part 100 comprises an outlet access part 70 for receiving an end of a cleaning hose being inserted through the inlet 12 and for guiding and directing the cleaning hose towards the outlet port 13.

Fig. 8B shows the view a worker has into the gully part 100 through the inlet 12. The access part 70 is easily visible. It comprises a guiding portion, i.e., a curved pipe part, for receiving a front end of a hose being inserted through the inlet 12. The gully part 100 additionally comprises a slider 80 to be slideable back and forth between a closed position and an open position. In the closed position, the slider 80 closes off a fluid throughput through the access part 70 in the direction of the outlet port 13. This closed position is illustrated in Fig 8A. This does not mean, however, that the outlet port 13 is cut off from the gully part 100. A liquid can still rise up and pass the filter 2 (see Fig. 8A) and then be drained through the outlet port 13 (see Fig. 8B) .

As shown in Fig. 8C, in the open position, the slider 80 allows a fluid throughput through the access part 70 in the direction of the outlet port 13. As a comparison between Figs. 8A and 8C illustrates, the slider 80 can be moved in the axial direction of the gully part 100.

The slider 80 also comprises an engagement member 81 that is accessible by a user from the inlet 12 by hand and/or with a tool. The engagement member 80 is positioned closer to the inlet 12 than the access part 70 and can be easily reached. This increases the convenience for opening and closing the outlet port access by the slider 80.

The gully part 100 also comprises a slider guiding mechanism 82 in the form of two guiding rails (inside of a cover shown in Figs. 8A and 8C) . The slider 80 is guided up and down in axial direction by the guiding rails.

Fig. 9A depicts an embodiment of a gully part 100 in accordance with the present disclosure. The gully part 100 comprises a narrower portion 17 with a smaller cross- sectional area, and a broader portion 18 with a larger cross- sectional area than the narrower portion 17. In this case, the cross-sectional area of the part coined the broader portion 18 is not the same everywhere. The broader portion 18 is in this case labelled to comprise a transition zone wherein the diameter of the broader portion 18 increases from the smaller diameter of the narrower portion 17 to the maximum diameter of the gully part 100.

The gully part 100 comprises an inlet 12 for receiving a liquid (namely rainwater) to be drained and an outlet port 13 (see Fig. 9B) connected to a drain pipe 14 (not shown) . The narrower portion 17 is located closer to the inlet 12 than the broader portion 18. In fact, for aesthetic purposes, also the diameter of the inlet 12 is chosen rather small compared to the diameter of the broader portion 18. In addition, the outlet port 13 is connected to the broader portion 18.

The gully part 100 also comprises outlet access part 70 for receiving an end of a cleaning hose being inserted through the inlet 12 and for guiding and directing the cleaning hose towards the outlet port 13.

The access part 70 of this embodiment comprises a rotatable member 90 which is rotatable between a closed state and an open state. The closed state is shown in Figs. 9A and 9B . The open state is shown in Figs. 9C and 9D. In the closed state, the rotatable member 90 closes off a fluid throughput through the access part 70 in the direction of the outlet port 13. This does not mean, however, that the outlet port 13 is cut off from the gully part 100. A liquid can still rise up and pass the filter 2 (see Fig. 9A) and then be drained through the outlet port 13 (see Fig. 9B) . As the rotatable member 90 can be rotated into a position in which it extends substantially in axial direction (see Fig. 9A) , the space taken up during normal use is minimal. Thus, the throughput capacity of the gully part 100 is maximized. In the closed state, the access part 70 is hardly visible from the outside through the inlet 12, as shown in Fig. 9B . Nevertheless, the access 70 part can be conveniently brought into the open state to allow a worker to insert a hose and clean the outlet port 13 (see Fig. 9D) .

In the open state (see Fig. 9C and 9D) , the rotatable member 90 allows a fluid throughput through the access part 70 in the direction of the outlet port 13.

As depicted in Figs. 9A and 9C, the gully part 100 comprises a rotation-effecting sliding member 91 connected to the rotatable member 90. The sliding member 91 is slideable back and forth in axial direction of the gully part 100, thereby effecting the rotatable member 90 to rotate back and forth between the closing state and the opening state.

The gully part 100 comprises two curved rail grooves, wherein the access part 70 is movably supported in these rail grooves. The sliding member 91 urges the rotatable member 90 to move in the curved rail grooves when being pulled and pushed back and forth in the axial direction.

To clean one of the gullies or gully parts of Figs. 7, 8, and 9, the skilled person opens the lid and takes out components (if necessary) such as an odor trap device and/or a filter. Either the access part 70 is already visible as in the cases of Figs. 7 and 8, or the access part 70 can be brought into the visible state, as in the case of Fig. 9. In the latter case, the worker pulls the handle on the sliding member 91 and opens the access part 70.

In each case, the worker can immediately see where to place a hose (see Figs. 7B, 8B and 9D) . A user may be lowered into through the respective inlet 12 and the front end is received on the access part 70. Then, water at high pressure may be squirted through the access part 70 into the outlet port 13 and through a connected drain pipe 14. This way, blocking substances may be washed away. Subsequently, the gully or gully part may also, e.g., be further cleaned by suctioning debris out of the gully pot 11.

When the cleaning is done, the worker can put back components (if applicable) such as a filter and/or an odor trap device and then close the gully or gully part.

Fig. 10 depicts an embodiment of a gully part 100 in accordance with the present disclosure. The gully part 100 further comprises an outlet port 13 which is connectable to a drain pipe 14 (not shown) . It also comprises an inlet 12 for receiving a liquid to be drained.

The gully part 100 of Fig. 10 further comprises a handle 15 for rotating and/or carrying the gully part 100. The handle 15 is located on an outside of the gully part 100. It is attached to an outer circumferential wall of the gully pot 11. The handle 15 is particularly convenient for transporting the gully part 100 but also for positioning it correctly during installation.

The embodiment of Fig. 100 additionally comprises a rib structure comprising a plurality of ribs 16 on the outer circumferential surface. These stabilize the gully 1 when positioned in soil, mud, sand, etc.

Further, the gully part 100 comprises a foot step 93 with an annular foot member 94 extending laterally from the gully pot 11. The rib structure leaves spaces for a user to insert a foot to use the foot step 93. In fact, the embodiment of Fig. 10 comprises two foot steps 93.

The handle 15 and the foot steps 93 of this embodiment are aligned such that a user can simultaneously operate the handle 15 with a hand and one or two foot steps 93 with a foot or two feet. This makes positioning the gully part 100 upon installation particularly convenient.

A user can pull and rotate using the hands, and at the same time exert some pressure using a foot. In addition, also levelling of the gully part 100 is particularly convenient.

Many additional variations and modifications are possible and are understood to fall within the framework of the invention.

Embodiments are also disclosed in the following numbered paragraphs/items :

1. A gully or gully part comprising:

a gully pot;

an inlet for receiving a fluid to be drained; an outlet port for being connected to a drain pipe for draining the fluid; and

a filter for mounting to the gully or gully pot and for filtering a fluid; wherein the filter is transformable from an insertion state to a mounting state;

the mounting state being for mounting the filter in the gully pot, and the insertion state being for inserting the filter through the inlet from outside of the gully or gully part and/or for removing the filter from the gully or gully part through the inlet ;

wherein the filter does not fit through the inlet in the mounting state but fits through the inlet in the insertion state. The gully or gully pot according to item 1, wherein the filter is for being removably mounted to the gully or gully pot, and wherein the filter is

transformable between the mounting state and the insertion state. The gully or gully part according to item 2, wherein the filter is made of flexible material allowing a reversible deformation of the filter from the

mounting state to the insertion state. The gully or gully part according to item 3, wherein the filter has shape memory. The gully or gully part according to any one of the previous items, the filter comprising at least one inflatable part, wherein the inflatable part is not inflated in the insertion state and is inflated in the mounting state. The gully or gully part according to item 5, wherein the inflatable part is at least partially deflatable. 7. The gully or gully part according to any one of the previous items, wherein the filter comprises at least two separable filter components configured to be releasably fixed to each other, wherein the filter components are separated in the insertion state and fixed to each other in the mounting state.

8. The gully or gully part according to any one of the previous items, wherein the filter comprises at least one foldable and/or unfoldable filter component, wherein the filter component is, in the insertion state, folded with respect to the mounting state.

9. The gully or gully part according to any one of the previous items, wherein the filter comprises a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered, the

filtration part surrounding the throughflow opening.

10. The gully or gully part according to item 9, wherein the filtration part comprises at least one curved surface part, the filtration part preferably having the shape of a straight and/or curved truncated cone.

11. The gully or gully part according to item 9 or 10, wherein an outer end of the filtration part comprises a wave-shaped end rim.

12. The gully or gully part according to any one of the previous items, wherein the gully pot comprises a narrower portion and a broader portion, the narrower portion having a smaller cross-sectional area than the broader portion, wherein the narrower portion is located closer to the inlet than the broader portion, and

the filter is mountable to the gully or gully part such that the filter, when mounted, is at least partially located in the broader portion. The gully or gully part according to item 12, further comprising an outlet cleaning access part for

receiving an end of a cleaning hose being inserted through the inlet and for guiding and/or directing the cleaning hose towards the outlet port,

wherein the access part is located at the broader portion or further away from the inlet than the broader portion, and

wherein the access part is visible through the inlet from outside of the gully or gully part or configured to be brought into a position so as to be visible through the inlet from outside of the gully or gully part A gully or gully part comprising:

a gully pot;

an inlet for receiving a fluid to be drained;

an outlet port for being connected to a drain pipe for draining the fluid; and

an outlet cleaning access part for receiving an end of a cleaning hose being inserted through the inlet and for guiding and/or directing the cleaning hose towards the outlet port;

wherein the gully pot comprises a narrower portion and a broader portion, the narrower portion having a smaller cross-sectional area than the broader

portion; the narrower portion being located closer to the inlet than the broader portion and the outlet port being connected to the broader portion; and

wherein the access part is visible through the inlet from outside of the gully or gully part or configured to be brought into a position so as to be visible through the inlet from outside of the gully or gully part .

15. The gully or gully part according to item 13 or 14, wherein the narrower portion comprises the inlet and/or a shaft connected to the inlet.

16. The gully or gully part according to any one of items 13 to 15, wherein the access part extends towards the inside of the gully pot or is moveable into a

position in which it extends towards the inside of the gully pot, so as to be visible through the inlet, wherein the access part preferably extends towards a central axis of the gully pot.

17. The gully or gully part according to any one of items 13 to 16, wherein the gully pot comprises an inner wall and an opening in said inner wall, wherein the outlet port is formed by said opening or is connected to said opening, and wherein the access part extends inward from said opening or is moveable into a position in which it extends inward from said

opening .

18. The gully or gully part according to any one of items 13 to 17, wherein the access part comprises a guiding portion for receiving a front end of a cleaning hose being inserted through the inlet and for guiding the front end towards the outlet port upon further insertion of the hose through the inlet. The gully or gully part according to any one of items 13 to 18, wherein the access part comprises a

straight and/or curved surface for receiving a front end of a cleaning hose being inserted through the opening, and/or wherein the access part comprises at least a portion shaped as a curved pipe part and/or a curved pipe socket. The gully or gully part according to any one of items 13 to 19, further comprising a slider configured to be slideable back and forth between a closed position and an open position, wherein the slider, in the closed position, closes off a fluid throughput through the access part in the direction of the outlet port, and, in the open position, allows a fluid throughput through the access part in the direction of the outlet part. The gully or gully part according to item 20, wherein the slider is slideable in an axial direction of the gully or gully part. The gully or gully part according to item 20 or 21, wherein the gully or gully part comprises an inner circumferential wall and a slider guiding mechanism, preferably at least one slider guiding rail, provided on said inner circumferential wall and configured to guide the slider upon sliding back and forth towards and away from the inlet, preferably along the inner circumferential wall, preferably in proximity to the inner circumferential wall, preferably in axial direction .

23. The gully or gully part according to any one of items 20 to 22, wherein the slider comprises an engagement member which is accessible by a user from the inlet and engageable by hand and/or with a tool, the engagement member preferably being positioned closer to the inlet than the access part.

24. The gully or gully part according to any one of items 13 to 23, wherein the access part comprises a

rotatable member which is rotatable between a closed state and an open state, wherein the rotatable member, in the closed state, closes off a fluid throughput through the access part in the direction of the outlet port, and, in the open state, allows a fluid throughput through the access part in the direction of the outlet part.

25. The gully or gully part according to item 24, further comprising a rotation-effecting sliding member connected to the rotatable member, wherein the sliding member is slideable back and forth in an axial direction of the gully or gully part, thereby effecting the rotatable member to rotate back and forth between the closing state and the opening state .

26. The gully or gully part according to item 24 or 25, wherein the access part is fixed at at least two points to a part of the gully pot relative to which the sliding member is slideable, the at least two points defining a rotation axis of the access part, and wherein the access part is connected to the sliding member at at least one point. The gully or gully part according to any one of items 24 to 26, wherein the gully or gully part comprises at least one curved rail groove, the access part being moveably supported in the at least one curved rail groove, and wherein the sliding member is configured to urge the access part to follow a movement back and forth along the curved rail groove when the access part is pulled and pushed by sliding the sliding member back and forth. The gully or gully part according to any one of the previous items, further comprising a filter receiving part for receiving a filter for filtering the fluid, the filter receiving part preferably comprising at least one protrusion on an inner wall of the gully pot, the filter receiving part preferably comprising an at least partially annularly protrusion on the inner wall,

the gully or gully part preferably further comprising a filter fixedly or removably received at the filter receiving part. The gully or gully part according to item 28, wherein the gully pot comprises a transition portion with a cross-sectional area between the cross-sectional area of the narrower portion and the cross-sectional area of the broader portion, and wherein the filter receiving part is provided at the broader portion and the outlet port is provided at the transition portion with one end starting at or overlapping with the broader portion. The gully or gully part according to item 28 or 29, further comprising a filter for filtering a fluid, wherein the gully pot and the filter are made as one piece . The gully or gully part according to any one of the previous items, comprising a debris trapping portion at an end opposite of the inlet. The gully or gully part according to item 31, as dependent on item 9, wherein the debris trapping portion is in fluid communication with the inlet through the throughflow opening in the filter. The gully or gully part according to item 32, wherein the outlet port is in fluid communication with the debris trapping portion of the gully or gully part through the filtration part of the filter. The gully or gully part according to any one of the previous items, further comprising an odor trap receiving part for receiving an odor trap device for preventing a gas flowing from the outlet port towards the inlet. The gully or gully part according to item 34, as dependent on item 12 or 14, wherein at least a part of the odor trap receiving part forms the narrower portion and/or wherein the narrower portion comprises the odor trap receiving part. The gully or gully part according to item 34 or 35, wherein the odor trap receiving part comprises a curved or a straight wall part extending towards an inside of the of the gully or gully part and away from the inlet, wherein the curved or straight wall part preferably extends towards a central axis of the of the gully or gully part, the curved or straight wall part preferably at least partially having the shape of a cone. The gully or gully part according to any one of items 34 to 36, further comprising an odor trap device, the odor trap device being receivable at the odor trap receiving part, the odor trap device preferably comprising a cylindrically-shaped main body. The gully or gully part according to any one of items 1 to 33, comprising an odor trap device, the odor trap device and the gully pot being made as one piece, the odor trap device preferably comprising a cylindrically-shaped main body. The gully or gully part according to item 37, the odor trap device comprising a suspending protrusion for supporting the odor trap device at the odor trap receiving part, the suspending protrusion preferably having an annular ring shape, the suspending

protrusion preferably having an outer circumference dimensioned to mate with an inner circumference of the odor trap receiving part The gully or gully part according to item 34, as dependent on item 28, wherein the odor trap receiving part is located closer to the inlet than the filter receiving part. The gully or gully part according to item 37, as dependent on any one of items 1 to 12 or 30, wherein the filter is configured to align the odor trap device, the filter preferably being configured to center the odor trap device with respect to a central axis of the gully or gully part when the odor trap is being inserted. The gully or gully part according to item 41, as dependent on item 9, wherein the odor trap device protrudes into the throughflow opening of the filter. The gully or gully part according to any one of the previous items, wherein the gully or gully part comprises a bottom surface with a curved, concave, and/or dome shape, and/or a bottom surface with an at least partially curved circumference. The gully or gully part according to any one of the previous items, wherein at least a part of the gully or gully part is injection molded and/or rotation molded and/or blow molded and/or extruded. The gully or gully part according to any one of the previous items, wherein the outlet port comprises a pipe piece and/or a pipe socket. The gully or gully part according to any one of the previous items, comprising a handle for rotating and/or carrying the gully or gully part on an outside of the gully or gully part. The gully or gully part according to any one of the previous items, comprising a foot step for fixing and/or leveling the gully or gully part on an outside of the gully or gully part. The gully or gully part according to item 47, wherein the foot step comprises an at least partially annular foot member extending laterally from the gully pot, and wherein, preferably, the gully pot is, on an outer surface thereof, provided with a rib structure, said rib structure leaving space for a user to insert a foot above of the foot step. The gully or gully part according to items 46 and 47, wherein the handle and the foot step are aligned such that a user can simultaneously operate the handle with a hand and the foot step with a foot. A gully or gully part comprising:

a gully pot;

an inlet for receiving a fluid to be drained;

an outlet port for being connected to a drain pipe for draining the fluid;

wherein the gully pot comprises a narrower portion and a broader portion, the narrower portion having a smaller cross-sectional area than the broader portion and having a minimum diameter,

wherein the narrower portion is located closer to the inlet than the broader portion, and

a filter mounted in the gully pot, wherein a distance between at least two points on the filter is larger than the minimum diameter of the narrower portion of the gully pot. The gully or gully part according to item 50, wherein the filter comprises a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered, the filtration part surrounding the throughflow opening. The gully or gully part according to item 51, wherein the filtration part comprises at least one curved surface part, the filtration part preferably having the shape of a straight and/or curved truncated cone. The filter according to item 51 or 52, wherein an outer end of the filtration part comprises a wave shaped end rim. A filter for filtering a fluid and for being mounted in a gully or gully part according to any one of the previous items, wherein the filter is transformable from an insertion state for inserting the filter through the inlet from outside of the gully or gully part to a mounting state for mounting the filter in the gully or gully part,

wherein at least one dimension of the filter is smaller in the insertion state than in the mounting state for enabling fitting the filter through an inlet of the gully or gully part in the insertion state through which it does not fit in the mounting state . The filter according to item 54, wherein the filter is transformable from the mounting state to the insertion state for removing the filter from the gully or gully part. 56. The filter according to item 55, wherein the filter is made of flexible material allowing a reversible deformation of the filter from the mounting state to the insertion state, the filter preferably having shape memory.

57. The filter according to any one of items 54 to 56, the filter comprising at least one inflatable part, wherein the inflatable part is not inflated in the insertion state and is inflated in the mounting state, the inflatable part preferable being at least partially deflatable.

58. The filter according to any one of items 54 to 57, comprising at least two separable filter components configured to be releasably fixed to each other, wherein the filter components are separated in the insertion state and fixed to each other in the mounting state.

59. The filter according to any one of items 54 to 58, comprising at least one foldable and/or unfoldable filter component, wherein the filter component is, in the insertion state, folded with respect to the mounting state.

60. The filter according to any one of items 54 to 59, comprising a filtration part including a plurality of filtration holes and a throughflow opening allowing a fluid to pass the filter without being filtered, the filtration part surrounding the throughflow opening.

61. The filter according to item 60, wherein the

filtration part comprises at least one curved surface part, the filtration part preferably having the shape of a straight and/or curved truncated cone. The filter according to item 60 or 61, wherein an outer end of the filtration part comprises a wave shaped end rim. A method for manufacturing the gully or gully part according to any one of items 1 to 54 and/or the filter of any one of items 55 to 62, preferably including a step of injection molding and/or rotation molding and/or blow molding and/or extruding. The method of item 63 for manufacturing the gully or gully part, the method comprising the step of connecting a first injection molded part and a second injection molded part so as to form the gully pot. A method of fitting the filter to the gully or gully part of any one of items 1 to 13 or 30, comprising the steps of:

inserting the filter in the insertion state into the gully or gully part; transforming the filter from the insertion state to the mounting state and mounting the filter in the gully or gully part. A method of cleaning the gully or gully part of any one of items 1 to 13 or 30, comprising the steps of: transforming the filter from the mounting state to the insertion state and taking the filter out of the gully or gully part through the inlet; cleaning the gully or gully part; reintroducing the filter, in the insertion state, through the inlet; and transforming the filter from the insertion state to the mounting state and re-mounting the filter in the gully or gully part. The method of item 66, using the gully or gully part according to item 37, further comprising the steps of: taking the odor trap device out through the inlet before the step of transforming the filter and taking the filter out; and reintroducing the odor trap device through the inlet after the step of

transforming and re-mounting the filter. The method of item 66 or 67, wherein the step of cleaning the gully or gully part comprises the step of suctioning debris out of the gully or gully part. A method of cleaning the gully or gully part

according to item 14, comprising the steps of:

introducing a cleaning hose through the inlet;

receiving the cleaning hose on the access part; and urging water through the outlet port while the cleaning hose is received on the access part. The method of item 69, further comprising the step of bringing the access part into a position so as to be visible through the inlet before the step of

introducing the cleaning hose. A gully or gully part, comprising an inlet for receiving a fluid to be drained;

an outlet port for being connected to a drain pipe for draining the fluid; and

a handle for rotating and/or carrying the gully or gully part, the handle being located on an outside of the gully or gully part. A gully or gully part, comprising an inlet for receiving a fluid to be drained;

an outlet port for being connected to a drain pipe for draining the fluid; and

a foot step allowing a user to fix and/or level the gully or gully part using a foot, the foot step being located on an outside of the gully or gully part. The gully or gully part according to item 72, wherein the foot step comprises an at least partially annular foot member extending laterally from the gully pot, and wherein, preferably, the gully pot is, on an outer surface thereof, provided with a rib structure, said rib structure leaving space for a user to insert a foot above of the foot step The gully or gully part according to items 71 and 72, wherein the handle and the foot step are aligned such that a user can simultaneously operate the handle with a hand and the foot step with a foot.