| 摘要 |
A flow-checking device connected between a sanitary system and a running water system, is provided, comprising: a tank (1) having a water inlet port (11) provided at an upper portion of the tank and a water outlet port (12) for fluid communication with the sanitary system; an electric valve (2) connected between the water inlet port of the tank and the running water system (21) so as to regulate a water flow from the running water system to the water inlet port of the tank; an overflowing passage (4) having an overflowing inlet (41) disposed inside the tank to define a maximum liquid level of the tank and an overflowing outlet (15) disposed outside the tank; a liquid-level sensor (51,52) for sensing whether the liquid level of the tank is lower than a predetermined liquid level; and a control circuitry (6) having an input from the liquid-level sensor and an output for controlling the electric valve (2) in such a manner that when the liquid-level sensor senses that the liquid level of the tank is lower than the predetermined liquid level, the control circuitry has the electric valve open until the liquid level of the tank reaches the predetermined liquid level or a higher liquid level between the maximum liquid level and the predetermined liquid level; wherein there is a vertical space provided between the water inlet port (12) of the tank and the overflowing inlet (41) of the overflowing passage (4). |
