Double-capacity water drain valve

Abstract

The invention discloses a double-capacity water drain valve. The valve comprises a valve seat and a valve body, wherein the valve body is supported on the valve seat; the valve body comprises a cylinder body, a partition plate with a through hole is arranged in the cylinder body, and the partition plate separates a water storage tank from a floater cavity; a full-pull rod is guided and moved in the through hole, and a floater is arranged at the lower end of the full-pull rod. The water drain valve is characterized in that a bottom valve is arranged at the lower end of the floater, an opening of the valve seat is opened or closed by the bottom valve, a half-pull rod sleeves the full-pull rod, and the half-pull rod can slide up and down along the full-pull rod; a half-flow hole is formed inthe corresponding position of the cylinder body, and the half-pull rod is controlled to control opening or closing of the half-flow hole; the bottom valve comprises a bottom valve seat, flow baffles and a sealing ring, the sealing ring sleeves the bottom valve seat, the flow baffles are annularly and uniformly arranged on the bottom valve seat, and gaps are formed between the adjacent flow baffles. According to the water drain valve, different pull rods are pulled by judging different water consumptions, so that the purpose of saving water sources is achieved; in addition, the structure is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to the field of drain valves, in particular to a double-capacity drain valve. Background technique [0002] In the prior art, the full tie rod is guided to flush from the opening in the cylinder bulkhead. The partition thus separates the float chamber containing the float from the water storage tank formed in the cylinder above the float chamber in the cylinder. When the water level drops below the water storage tank, the annular gap formed between the outer surface of the full tie rod and the opening of the partition allows the flush water in the water storage tank to be discharged normally. At the same time, the annular gap conditionally closes the space between the full tie rod and the opening of the partition, and also prevents the float in the float chamber from falling prematurely. Only when the flush water is completely discharged from the reservoir through the annular gap, air enters the float chamber and the valve close...

AI Technical Summary

Problems solved by technology

[0003] However, at the moment when the flushing is completed, the float drops, the bottom valve closes the opening of the valve seat, and at the same time, there is a suction force that quickly sucks the bottom valve to the valve seat, causing the valve seat to receive a great impact, which may cause the valve seat to be damaged. The damage of the water tank will reduce the sealing performance, and the water in the water tank will flow out continuously, resulting in a waste of water resources.

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