To provide a water supply system which eliminates the need for the use of electricity as power used for a device, which eliminates the need for installation of a complicated facility used for acquiring power for the device, which can reduce costs for the operation of the device, and which can be easily maintained by a simple constitution of the device.
The water supply system is provided with a plate-shaped body 12, a conduit 11, a first valve 14, a second valve 15, a piston 13, and a conversion means. The plate-shaped body 12 exposed on the road surface where vehicles or pedestrians pass can be elastically deformed or can move in the up-and-down direction. The conduit 11, which is extended downward from the position near the road on which the plate-shaped body 12 is provided, passes through the interior of an aquifer 21, and is extended to a required water-supply position. Then the first valve 14 allows the intake of the ground water from a permeable opening 24 provided to the conduit 11 to the interior of the conduit, and the second valve 15 is provided to the conduit so that it can discharge the ground water taken into the conduit to the water-supply side. The piston 13 is provided in a higher position of the conduit 11 than the first valve 14, and the conversion means converts the displacement generated by the elastic deformation or up-and-down movement of the plate-shaped body 12 to a force by which the piston 13 performs a reciprocating motion in the conduit 11.
COPYRIGHT: (C)2009,JPO&INPIT
Ryo Yamashita
Koichi Hase
| JP3872037B2 | ||||
| JP10292339A |
Masahiro Kurai