| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive environment-conscious type washing device in which a high speed water current is ejected from a nozzle by boosting the pressure of rainwater. SOLUTION: This washing device has a water storage tank 52 for storing rainwater, a pressure booster 51 for boosting the pressure of the rainwater from the tank 52 and the nozzle 56 for ejecting the pressure-boosted water. The booster 51 is constituted so that the rainwater is received through a tank port 9 and the pressure of the received water is boosted by reciprocating a spool 2 while operating an advancing pressure-received mechanism 3, a retreating pressure-received mechanism 5 and a switching mechanism 6 by making good use of the pressure of tap water which is introduced from the outside to an introduction port 4. Therefore, the rainwater of low pressure can be economically used as washing water or spraying water.
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