Torsion overturning plate seal one-way valve

Abstract

The invention discloses a torsion overturning plate seal one-way valve. The torsion overturning plate seal one-way valve comprises a seal plate, the seal plate is provided with an overturning plate, the overturning plate is connected with a shaft hole in the seal plate through a rotating shaft, the torsion overturning plate seal one-way valve is characterized in that the overturning plate is divided into two unsymmetrical areas of a long edge side and a short edge side relative to the rotating shaft, and the position, close to the rotating shaft, of the overturning plate is provided with a torsion mechanism; the seal plate is provided with a leaking hole, and the edge of the leaking hole forms a seal ring to be used for sealing and limiting the overturning degree of the overturning plate under the action of the torsion mechanism; and the overturning plate is provided with a seal rubber pad which can realize soft seal in coordination with the overturning plate, and a seal circle also can be installed at the seal plate leaking hole to coordinate to realize the soft seal. The torsion overturning plate seal one-way valve is high in drainage hole space utilization rate, sensitive in response, fast in draining, good in deodorization effect and not prone to losing efficacy in seal effect.

Description

technical field [0001] The invention relates to a torsion flap sealing one-way valve, which belongs to the field of valves and can be used in drainage facilities such as floor drains, urinals, toilets, and wash basins. It has the characteristics of fast response, tight sealing, fast launching, and not easy to block. Background technique [0002] The Chinese Invention Patent Publication No. CN 106703162 A discloses a "gravity flap floor drain", which includes a cylinder body, two symmetrical semicircular flaps and a sealing plate with the same symmetrical leakage holes. The flaps are mounted on shafts. In the shaft hole on the barrel, the flap is opened and closed through a gravity pendant connected by a flexible wire, and the gravity pendant is placed in a fixed cavity. The Chinese Invention Patent Publication No. CN 206439452 U discloses a "gravity traction flap check valve", which features a cylinder body, a flap of a specific shape and a sealing plate with leak holes of ...

AI Technical Summary

Problems solved by technology

However, these designs have the following problems and disadvantages: the cylinder body and the cavity will cause the drainage space to be compressed, and gravity will fail under the surface tension and adsorption force of the water, and the closure cannot be achieved, and the flap and sealing plate are not easy. It is tightly closed, and both technologies have restrictions on the shape of the flap, sealing plate and cylinder, which cannot be applied in special cases such as non-circular drainage pipes

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