| 摘要 |
A system for use of waste water for toilet flushing comprising a conventional flush toilet having a toilet tank (2) placed at the rear-upper position of a toilet bowl (1), an upright filler tube (5) equipped with a shutoff valve (7) which opens to supply water or shuts to stop inflow of water at the control of a float ball (11), a drainage valve (8) to flush water to the toilet bowl (1) at the control of a handle (12), and an overflow tube (13) which sends water off to the toilet bowl (1) when water in the toilet tank (2) is more than its capacity; and a waste water supply pipe (4) to supply the waste water from wash stands, sinks, or bath tubs to the toilet tank (2), charasterised in that a water control system (17) is set above or under the float ball (11) inside the toilet tank (2), which water control system (17) always keeps the shutoff valve (7) of the upright filler tube (5) and the float ball (11) locked regardless of the level of water in the toilet tank (2), when there is no or only insufficient waste water in the toilet tank (2) and when the user lifts the cover (21) and sits down, the push button device of the water control system (17) projecting from the front of the toilet tank (2), is pushed down, and as the water control system automatically functions to open the shutoff valve (7), water is let to flow in from the upright filler tube (5). |
