Water tank drainage valve with water leakage detection function

Abstract

The invention discloses a water tank drainage valve with the water leakage detection function. The water tank drainage valve comprises a valve body. The valve body is provided with an overflow pipe, a circular annular base, a valve deck and a valve deck control mechanism. A drainage outlet is formed in the center of the circular annular base, an overflow hole is formed in the circular annular base, the lower end of the overflow pipe is communicated with the overflow hole, a water storage barrel is installed in the drainage outlet, an opening in the upper portion of the water storage barrel is opened, a small water drainage hole is formed in the bottom of the water storage barrel, a floater is also installed inside the water storage barrel, and a liquid level switch is arranged at the position close to the floater. A microprocessor is arranged outside the valve body of the drainage valve, a timing unit is arranged in the microprocessor, and the timing unit monitors the time span t spent when the liquid level switch is continually in the abnormal state. The microprocessor is connected with a feedback execution mechanism through a second signal line. When the timing unit of the microprocessor monitors that the time span t spent when the liquid level switch is continually in the abnormal state is larger than t1+t2+t3, the microprocessor gives an instruction to enable the feedback execution mechanism to act. The water tank drainage valve with the water leakage detection function can automatically detect water leakage of a water tank and process water leakage.

Description

technical field [0001] The invention belongs to a water tank drain valve used for toilets, in particular to a water tank drain valve with a water leakage detection function. Background technique [0002] Toilet water tanks are all provided with water inlet channels and drain valves, wherein the drain valves are responsible for controlling flushing, and the water inlet channels are responsible for replenishing water to the water tanks. figure 1 , figure 2 As shown, the drain valve of the toilet tank includes a valve body 1, the valve body of the drain valve is provided with an overflow pipe 11, an annular base 12, a valve cover 13, and a valve cover control mechanism, and the center of the annular base forms a drain port 14 , the bonnet 13 movable cover is closed on the top of the drain port 14 of the annular base, and the bonnet control mechanism controls the opening or closing of the bonnet; the annular base is also provided with an overflow hole 15, and the lower end of ...

AI Technical Summary

Problems solved by technology

In the above two situations, no matter which situation occurs, it will cause water to be released day and night, and the amount of wasted water will be large

But on the other hand, since the toilet water tank itself needs the function of normal drainage, it has been difficult to find a suitable detection and solution for the problem of water leakage in the toilet water tank

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