Related Application

[0001] This application is related to Chinese Utility Model Application No.: CN202123295362.2, filed December 24, 2021, the entire disclosure of which is expressly incorporated by reference herein.

Field

[0002] The present disclosure relates to a multi-channel pump structure, in particular to an air leak proof regulating structure of a mechanical pump.

Background

[0003] Inflatable products have been widely used in various household products due to their functions of easy collection or carrying after inflation and deflation. In particular, the inflatable bed, because of its small size, easy to carry and collect, is very suitable for camping and as a spare mattress at home for short-term use by guests. At present, the inflatable bed is generally equipped with multiple inflatable chambers, which are set to different air pressures to improve the comfort of the inflatable bed. In view of this situation, a multi-channel air pump was used.

[0004] An existing multi-channel air pump is generally equipped with a power switch and a channel selection switch. When using the multi-channel air pump, the user needs to turn on the power switch and select the corresponding channel for inflation or deflation through the channel selection switch. After use, the user still needs to turn off the power switch, and turn off the channel selection switch at the same time. This makes it difficult for users to operate two switches when using multi-channel air pump. Moreover, after use, users often forget to turn off the channel selection switch, and the air of the inflatable product will leak from the corresponding channel, thus affecting the use of the inflatable product.

Summary

[0005] In view of the problems existing in the prior art, the present disclosure, in embodiments, may provide an air leak proof regulating structure of a mechanical pump, which can simplify the use of multi-channel air pumps by users and avoid air leakage of inflatable products.

[0006] To achieve the above purpose, an exemplary technical scheme is: An air leak proof regulating structure of a mechanical pump, wherein the regulating structure is applied to multi-channel pump, and the multi-channel pump may comprise a body, an air pump assembly and a channel switching structure arranged in the body, and a panel matched on the body; the regulating structure may be matched on the panel, which may comprise a channel selection knob, a turntable and a power switch, the channel selection knob may be rotatably arranged on the panel; the turntable may be arranged in the body, the upper end of is the turntable may be connected with the channel selection knob, and the lower end may be matched with the channel switching structure; the turntable may be provided with a convex edge and a notch; the power switch may be provided with a button for controlling the power on/off, which may be selectively matched with the convex edge and notch of the turntable.

[0007] In another preferred embodiment, the body may be provided with at least two air chamber interfaces for connecting an inflatable product; the channel switching structure may comprise at least two groups of channel switching assemblies, the channel switching assembly may comprise a post rod and a post rod fixing plate, the post rod may be penetrated into the post rod fixing plate, the upper end of the post rod may be connected with the turntable, and the lower end may be selectively matched with the air chamber interface on the body.

[0008] In another preferred embodiment, the channel switching structure may further comprise an elastic member and a post rod connector, the post rod connector may be connected with the upper part of the post rod, the spring may be sleeved outside the post rod, the lower end of the spring may contact the post rod fixing plate, and the upper end may contact the post rod connector.

[0009] In another preferred embodiment, the lower end of the post rod may be connected with a sealing ring. [00010] In another preferred embodiment, the air pump assembly may comprise a motor, a pump body, a blade and a pump cover, the pump cover and the pump body may cooperate to form a pump chamber, the blade may be arranged in the pump chamber, the motor may be arranged outside the pump chamber, and is connected with the blade; the pump cover may be provided with two air vents, one of which may be connected with the outside world, and the other may be connected with the inner chamber of the body.

[00011] In another preferred embodiment, the multi-channel pump may further comprise an inflation and deflation switching assembly.

[00012] In another preferred embodiment, the inflation and deflation switching assembly may comprise an air exchange core and a push rod, the push rod may be slidably arranged on the panel, and one side of the push rod may be provided with a rack; the upper end of the air exchange core may be connected with the outside, and the lower end may be selectively connected with two air vents of the pump cover, the upper part of the air exchange core may be provided with a gear which engages with the rack of the push rod.

[00013] In another preferred embodiment, the inflation and deflation switching assembly may further comprise a switch fixing plate, the switch fixing plate may be connected in the body, and the push rod may slidably arranged on the switch fixing plate.

[00014] In embodiments, the present disclosure provides a convex edge and a notch on the turntable. When the convex edge on the turntable is matched with the button, the button is pressed; When the notch on the turntable matches with the button, the button pops off. Whether the button is pressed or not corresponds to whether the power supply is powered on or not. The channel selection knob turns on the power of the air pump assembly when the inflation channel is selected to open, and turns off the power of the air pump assembly when the air pump channel is closed. Advantages, among others, include that the user only needs to operate the channel selection knob to complete the control of the two functions, which is convenient for the user to operate, and further effectively avoids the air leakage of the inflatable product caused by the user's omission.

[00015] Additional features and advantages will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrative embodiment exemplifying the best mode of carrying out the invention as presently perceived.

Brief description of the drawings

[00016] The foregoing aspects and many of the intended advantages o will become more readily appreciated as the same becomes better understood by reference to the following detailed description when taken in conjunction with the accompanying drawings.

[00017] FIG. 1 illustrates an exploded view of the pump of the present invention;

[00018] FIG. 2 illustrates a schematic view of the combined structure of the present invention;

[00019] FIG. 3 illustrates a schematic view of the regulating structure when the pump is turned off;

[00020] FIG. 4 illustrates a sectional view of the pump in the off state;

[00021] FIG. 5 illustrates a schematic view of the regulating structure when the pump is in the use state; and

[00022] FIG. 6 illustrates a sectional view of the pump in use.

[00023] Corresponding reference characters indicate corresponding parts throughout the several views. Although the drawings represent embodiments of various features and components according to the present disclosure, the drawings are not necessarily to scale and certain features may be exaggerated in order to better illustrate and explain the present disclosure. The exemplifications set out herein illustrate embodiments of the invention, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.

Detailed description of the embodiments

[00024] For the purposes of promoting an understanding reference will now be made to the embodiments illustrated in the drawings, which are described below. The embodiments disclosed below are not intended to be exhaustive or to be limiting to the precise form disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may utilize their teachings. It will be understood that no limitation is thereby intended, but that the disclosure includes any alterations and further modifications in the illustrative devices and described methods and further applications of the principles disclosed herein which would normally occur to one skilled in the art.

[00025] In the description of the present disclosure, it should be noted that the terms upper, lower, inner, outer, top/bottom, etc. indicating the orientation or positional relationship based on the orientation shown in the drawings are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[00026] In the description of the present disclosure, it should be noted that the terms installed, provided with, socketed/connected, connected, etc., should be understood broadly, connection can be wall-mounted connection, detachable connection, or integral connection, mechanical connection or electrical connection, direct connection, or indirect connection through an intermediate medium, and it can be inside two components. The terms "couples", "coupled", "coupler" and variations thereof are used to include both arrangements wherein the two or more components are in direct physical contact and arrangements wherein the two or more components are not in direct contact with each other (e.g., the components are "coupled" via at least a third component), but yet still cooperate or interact with each other.

[00027] As shown in FIGS. 1-6, an air leak proof regulating structure of a mechanical pump is disclosed, which is applied to a multi-channel pump. The multi-channel pump may comprise a body 10, an air pump assembly 50 and a channel switching structure arranged in the body 10, and a panel 20 matched with the body 10. The regulating structure may be matched on the panel 20, which comprises a channel selection knob 31, a turntable 32 and a power switch 33, wherein, the channel selection knob 31 may be rotatably arranged on the panel 20. The turntable 32 may be arranged in the body 10, its upper end is connected with the channel selection knob 31, and its lower end is matched with the channel switching assembly 40. The turntable 32 is provided with a convex edge 321 and a notch 322 (see FIG. 3). The power switch 33 is provided with a button 331 for controlling the power on/off, which is selectively matched with the convex edge 321 and notch 322 of the turntable 32.

[00028] When the convex edge 321 on the turntable 32 is matched with the button 331, the button 331 is pressed; when the notch 322 on the turntable 32 matches with the button 331, the button 331 pops outward. Whether the button 331 is pressed or not corresponds to whether the power supply is turned on. In this embodiment, when the button 331 is pressed, the power supply is turned on, and when the button 331 pops outward, the power supply is turned off. Therefore, when the channel selection knob 31 is rotated to the open state and the corresponding inflation channel is selected, the convex edge 321 on the turntable 32 matches with the button 331, the button 331 is pressed, resulting in the pump power is turned on, and the air pump assembly 50 starts to work for inflation or deflation. When the channel selection knob 31 is turned to the closed state, the notch 322 on the turntable 32 matches with the button 331, the power is cut off, and the air pump assembly 50 stops working. That is to say, the channel selection knob 31 turns on the power of the air pump assembly 50 when the inflation channel is selected to open, and turns off the power of the air pump assembly 50 when the air pump channel is closed. The user only needs to operate the channel selection knob 31 to complete the control of the two functions, which is convenient for the user to operate, and further effectively avoids the air leakage of the inflatable product caused by the user's omission.

[00029] The correspondence between the button 331 on the power switch 33 and the power on/off state may be adjusted according to the actual situation. For example, it can further be set that when the button 331 pops outward, the corresponding power supply is turned on, and when the button 331 is pressed, and the corresponding power supply is turned off.

[00030] The body 10 is provided with at least two air chamber interfaces 11 for connecting inflatable products. Correspondingly, the channel switching structure comprises at least two groups of channel switching assemblies 40. The channel switching assembly 40 comprises a post rod 43 and a post rod fixing plate 44. The post rod 43 is penetrated into the post rod fixing plate 44. The upper end of the post rod 43 is connected with the turntable 32, and the lower end is selectively matched with the air chamber interface 11 on the body 10. When the post rod 43 rotates with the turntable 32 to the air chamber interface 11, it indicates that the air chamber interface 11 is closed. There are two channel pumps shown in this embodiment, so the body 10 is equipped with two air chamber interfaces 11, namely, a first air chamber interface and a second air chamber interface. The channel switching structure comprises three groups of channel switching assemblies 40, which cooperate with two air chamber interfaces 11, so that the channel selection knob 31 in this embodiment can have four positions, namely, connecting the first air chamber interface, connecting the second air chamber interface, connecting the first air chamber interface and the second air chamber interface at the same time, and disconnecting the first air chamber interface and the second air chamber interface. As shown in FIG. 4, channel selection knob 31 is in a first position wherein portions of turntable 32 move both post rods 43 and both sealing rings 45 downward to seal each of the air chamber interfaces 11 (the off position). In contrast, in FIG. 6, channel selection knob 31 is in a second position wherein both post rods 43 are received in respective recesses in turntable 32 and both sealing rings 45 move upward to permit inflation or deflation of the air chambers coupled to interfaces 11 (both chambers on position). In a third position of channel selection knob 31 only the leftward post rod 43 is received in a recess in turntable 32 resulting in the leftward interface being open. In a fourth position of channel selection knob 31 only the rightward post rod 43 is received in a recess in turntable 32 resulting in the rightward interface being open.

[00031] In this embodiment, the channel switching assembly 40 further comprises an elastic member and a connector 41 of the post rod 43. The connector 41 of the post rod 43 is connected with the upper part of the post rod 43. The spring 42 is sleeved outside the post rod 43. The lower end of the spring 42 is connected with the post rod fixing plate 44. The upper end is connected with the connector 41 of the post rod 43. The lower end of post rod 43 is connected with a sealing ring 45. The spring 42 may fasten the connection between the post rod 43 and the post rod fixing plate 44, and the setting of the sealing ring 45 may strengthen the sealing effect of the post rod 43 on the air chamber interface 11.

[00032] In this embodiment, the air pump assembly 50 may comprise a motor 54, a pump body 53, a blade 52, and a pump cover 51. The pump cover 51 forms a pump chamber by cooperating with the pump body 53. The blade 52 is arranged in the pump chamber. The motor 54 is arranged outside the pump chamber and connected with the blade 52. The pump cover 51 is provided with two air vents, one of which is connected with the outside world, and the other is connected with the inner chamber of the body 10. After the power switch 33 turns on the power, the motor 54 starts to rotate, so as to inflate or deflate.

[00033] In this embodiment, the multi-channel pump further comprises a charge and discharge switching assembly 60, which comprises an air exchange core 61, a push rod 62, and a switch fixing plate 63. The push rod 62 may be slidably arranged on the panel 20, and a rack 621 may arranged on one side of the push rod. The upper end of the air exchange core 61 is connected to the outside, and the lower end is selectively connected to two air vents of the pump cover 51. The upper part of the air exchange core 61 is provided with a gear 611 that meshes with the rack 621 of the push rod 62. The switch fixing plate 63 is connected in the body 10, and the push rod 62 is slidably arranged on the switch fixing plate 63. When pushing the push rod 62, the rack 621 on the push rod 62 will cooperate with the gear 611 to drive the air exchange core 61 to rotate, so as to select which vent on the pump cover 51 is connected with the outside world, and then determine whether the pump is used for inflation or deflation.

[00034] An advantage, among others, of the present disclosure is the convex edge 321 and notch 322 are arranged on the turntable 32. When the convex edge 321 on the turntable 32 matches with the button 331, the button 331 is pressed; when the notch 322 on the turntable 32 matches with the button 331, the button 331 pops outward. Whether the button 331 is pressed or not corresponds to whether the power supply is turned on. The channel selection knob 31 turns on the power supply of air pump assembly 50 when the inflation channel is selected to be opened, and turns off the power supply of air pump assembly 50 when the air pump channel is closed. The user only needs to operate the channel selection knob 31 to complete the control of the two functions, which is convenient for the user to operate, and further effectively avoids the air leakage of the inflatable product caused by the user's omission.

[00035] In an exemplary embodiment, a structure for selectively inflating one or more air chambers of an inflatable product is provided. The structure comprising a body; an air pump positioned within the body; and a plurality of air interfaces provided on the body. Each air interface being coupled to a respective air chamber of the inflatable product. The structure further comprising a channel selector having an operator actuatable input actuatable from an exterior of the body and a turntable; a switch operatively coupled to the air pump to in a first state turn on the air pump and in a second state to turn off the air pump; and a plurality of seals. Each seal being positionable in a first position to contact a respective one of the plurality of air interfaces to seal the respective one of the plurality of air interfaces and in a second position to be spaced apart from the respective one of the plurality of air interfaces to permit air flow therethrough. A single actuation of the operator actuatable input controls both the state of the switch and the position of each of the plurality of seals. The single actuation may cause a rotation of the turntable. The turntable may have a convex edge which engages the switch and a notch which receives the switch.

[00036] It will be apparent to those skilled in the art that various modifications and variation can be made in the present disclosure without departing from the spirit or scope of the disclosure. Thus, it is intended that the present disclosure cover the modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalents.

[00037] Reference marks:

[00038] Body 10;

[00039] Air chamber interface 11 ;

[00040] Panel 20;

[00041] Channel selection knob 31 ;

[00042] Turntable 32;

[00043] Convex edge 321;

[00044] Notch 322;

[00045] Power switch 33;

[00046] Button 331;

[00047] Channel switching assembly 40;

[00048] post rod connector 41 ;

[00049] Spring 42;

[00050] Post rod 43;

[00051] Post rod fixing plate 44;

[00052] Sealing ring 45; [00053] Air pump assembly 50;

[00054] Pump cover 51 ;

[00055] Blade 52;

[00056] Pump body 53;

[00057] Motor 54;

[00058] Inflation and deflation switching assembly 60;

[00059] Air exchange core 61;

[00060] Gear 611;

[00061] Push rod 62;

[00062] Rack 621;

[00063] Switch fixing plate 63.