Valve element structure of one-way valve

Abstract

The invention discloses a valve element structure of a one-way valve, and belongs to the technical field of valves. The valve element structure is novel in structure. Compared with a traditional valveelement structure, a valve element guide sleeve is used as a valve element sliding rod, the diameter of the guide sleeve is large, stability is good, strength is large, and the service life of the sliding rod is prolonged. A blocking skirt is additionally arranged on the periphery of a valve element plate, a groove is formed between the blocking skirt and a valve element screw, and a sealing gasket is embedded in the valve element plate. The valve element structure has the beneficial effects that the sealing gasket and the valve element plate are tightly embedded together, the blocking skirtprotects the sealing gasket, sludge cannot be extruded into a gap between the sealing gasket and the valve element plate in the high-speed flowing process, and the situation that the sealing gasket isextruded by the sludge to deform and break is eradicated; even if the sealing gasket is broken under the action of external force, the sealing gasket cannot fall off through protection of the blocking skirt, and the service life of the sealing gasket is prolonged; and in addition, a damping pad can effectively prevent vibration and mechanical damage generated by collision of the valve element plate and a one-way valve cover plate guide rod (or guide pipe) when a valve element moves up and down.

Description

technical field [0001] The invention belongs to the technical field of valves, and relates to a valve core structure of a one-way valve, in particular to a valve core structure used for a one-way valve in a pump body pipeline. Background technique [0002] The opening and closing parts are opened or closed by the flow and force of the medium to prevent the backflow of the medium. The valve is called a one-way valve. According to the structure, it can be divided into three types: lift check valve, swing check valve and butterfly check valve. These check valves are often used in factories, heating systems, compressed air, water supplies, etc. to prevent backflow or discharge. [0003] The traditional one-way valve core structure generally uses lock nuts, elastic washers, flat washers, and gaskets to realize the sealing of the one-way valve to the valve body, so that the fluid cannot be circulated; when working in high-pressure or large-flow situations, the valve core The str...

AI Technical Summary

Problems solved by technology

However, in this technical solution, the diameter of the sliding rod is small, and the connection between the sliding rod and the valve core plate is easy to break, and the sludge will squeeze into the gap between the gasket and the valve core plate during high-speed flow, and the gasket will be squeezed by the sludge The deformation and fracture will cause the gasket to be broken by external force; the valve core gasket and the sealing surface of the valve body base are repeatedly opened and closed in close contact at high frequency. When the medium contains hard particles or foreign objects that are easy to damage the gasket, the gasket will rupture and fall off. , reducing the service life of the gasket

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