Two-position three-way valve and air blowing assembly

Abstract

The invention discloses a two-position three-way valve and an air blowing assembly, and relates to the technical field of valve bodies. The two-position three-way valve comprises a valve body, a moving assembly movably arranged in the valve body and a sealing structure, the side wall of the valve body is provided with two low-pressure air inlet holes, a high-pressure air inlet hole, a high-pressure air outlet hole and a high-pressure exhaust hole, in the first direction of a first shaft, the two low-pressure air inlet holes are formed in the upstream and the downstream of the moving assembly correspondingly, and air enters the two low-pressure air inlet holes to push the moving assembly to move in different directions; the sealing structure comprises a first abutting part, a second abutting part, a third abutting part and a fourth abutting part which are of circular truncated cone structures and take the first shaft as a central shaft, wherein the third abutting part is arranged on themoving assembly and used for being matched with the first abutting part, the fourth abutting part is used for being matched with the second abutting part, and the distance between the third abuttingpart and the fourth abutting part is smaller than the distance between the first abutting part and the second abutting part. Due to the arrangement, the sealing effect is good, circulating media cannot be corroded, and the service life of the valve body cannot be affected.

Description

technical field [0001] The invention relates to the technical field of valve bodies, and more specifically, relates to a two-position three-way valve and an air blowing assembly. Background technique [0002] In the prior art, the two-position three-way valve is realized by a solenoid valve. There is a closed cavity in the valve body of the solenoid valve, and a valve core is arranged in the cavity, and the valve core can move in the cavity, and the valve body is in different There is a through hole in the position, the valve core moves to different positions to open and close different through holes, there are electromagnets on both sides of the valve body, which side the magnet coil is energized, the valve body will be attracted to which side, through Control the moving direction and moving position of the valve body to open or close different through holes. In this way, the mechanical movement is controlled by controlling the electric current on and off of the electromag...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a two-position three-way valve and an air blowing assembly to solve the technical problems of poor sealing effect inside the electromagnetic valve, easy to corrode the flow medium, and affecting the service life in the prior art.

Images