Air pressure regulating valve and air pressure regulating mechanism

Abstract

The invention relates to the technical field of regulating valves, and specially relates to an air pressure regulating valve and an air pressure regulating mechanism that comprise a valve body and a sliding assembly. A cavity is formed in the valve body in the axial direction of the valve body. The sliding assembly is arranged in the cavity; the sliding assembly comprises a first sliding plate anda telescopic piece. The first sliding plate is positioned on the cross section of the cavity; the circumferential edge of the first sliding plate is in contact with the inner wall of the valve body;a fixed partition plate is arranged on the cross section of the cavity of the valve body; a through hole is formed in the partition plate, the telescopic piece penetrates through the through hole to be connected with the first sliding plate and can control the first sliding plate to move in the axial direction of the valve body, a sealing ring capable of making contact with the partition plate isarranged at the position, corresponding to the radial outward direction of the through hole, of the first sliding plate, and a vent hole is formed in the outer side of the sealing ring. Automatic airpressure adjustment can be achieved without a complex control circuit or control program, the reliability is high, and the overall structure is simpler and easier to achieve compared with an electromagnetic pressure release valve.

Description

technical field [0001] The invention relates to the technical field of regulating valves, in particular to an air pressure regulating valve and an air pressure regulating mechanism. Background technique [0002] At present, the electromagnetic pressure relief valve is a conventional pressure relief device to prevent accidents and damage caused by excessive pressure. The action of the electromagnetic pressure relief valve is conditional. Generally, the system pressure exceeds a certain limit or the pressure is released when the equipment is not working. The working conditions depend on the control circuit or control program of the electromagnetic pressure relief valve, which requires complex control circuits or The control program makes it difficult to realize automatic air pressure adjustment. For the porous platform to achieve the adsorption process of the film by vacuuming the pipeline, if the electromagnetic pressure relief valve cannot ensure the stability of the air pre...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem that the existing air pressure regulating valve is difficult to realize automatic air pressure adjustment, and the stability of the adjustment work is poor

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