Glasses valve with long service life

Abstract

The invention provides a glasses valve with long service life. The glasses valve comprises a bracket, a left valve body, a right valve body, a middle valve body, an elastic member and a driving mechanism, wherein the left valve body comprises a first valve body and a second valve body; and the driving mechanism comprises a first driving mechanism and a second driving mechanism. According to the glasses valve, through the design of the elastic member, the second valve body can slide towards the first valve body, so that an interval is generated between the second valve body and the middle valvebody; meanwhile, by utilizing the design of the elastic member, when the second valve body moves away from the middle valve body in the axial direction during use, a spring pushes the middle valve body away under the action of the elastic force of the spring to generate an interval between the middle valve body and the right valve body, so that the problem that the hard friction is generated among the middle valve body, the second valve body and the right valve body to damage the valve bodies in a state that the middle valve body is switched from blocking a second through hole and a third through hole to communicating the second through hole and the third through hole or in an opposite state is solved, and accordingly the service life of the glasses valve is guaranteed.

Description

technical field [0001] The invention relates to an eye valve, in particular to an eye valve with long service life. Background technique [0002] Existing eye valve, discloses a kind of electric eye valve as patent CN204755961U, and its concrete structure is as follows: comprises [0003] A valve body, the valve body includes a left valve body, a middle valve body and a right valve body, the left valve body, the middle valve body and the right valve body are triangles of the same size, and the left valve body, the middle valve body and the right valve body are in turn Adjacently arranged, the left valve body and the middle valve body, the middle valve body and the right valve body are connected by connecting pieces, and there are sealing rings between the left valve body and the middle valve body, the middle valve body and the right valve body, so The left valve body, the middle valve body and the right valve body are provided with corresponding through holes of the same si...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the deficiencies of the prior art, the present invention provides an eye valve with high service life. Through the design of the telescopic element, the second valve body can slide towards the first valve body, so that the gap between the second valve body and the middle valve body At the same time, using the design of the elastic part, when the second valve body moves away from the middle valve body in the axial direction, the spring pushes the middle valve body away under the action of its own elastic force, so that the middle valve body and the right valve body There is a gap between the bodies, so as to solve the problem of switching the middle valve body from blocking the second through hole and the third through hole to connecting the second through hole and the third through hole or the opposite state, the middle valve body and the second valve body, the right The problem of hard friction between the valve bodies and damage to the valve body, thus ensuring the service life of the eye valve

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