| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid soap-supplying apparatus which supplies a constant amount of liquid soap regardless of change in watering pressure of a watering source using a pump mechanism operating with water pressure supplied from the watering source. SOLUTION: This liquid soap-supplying apparatus 1 has a liquid soap tank 8, a water pump chamber 38 connected to a watering source 4, a liquid soap pump chamber 44 connected to the liquid soap tank, a piston 45 which is driven by the water pressure in the water pump chamber and changes the capacities of the water pump chamber and the liquid soap pump chamber, a compression coil spring 54 which energizes the piston in the direction in which the capacities of both the pump chambers 38 and 44 decrease, and a solenoid valve 28 connected to the water pump chamber. When this solenoid valve is closed, the water pressure in the water pump chamber increases, the capacities of both the pump chambers increase, and liquid soap is sucked into the liquid soap pump chamber from the liquid soap tank. When the solenoid valve is opened, the water pressure in the water pump chamber decreases, the capacities of both the pump chambers decrease, and liquid soap is discharged from the liquid soap pump. COPYRIGHT: (C)2007,JPO&INPIT
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