Linkage sealing type air valve

Abstract

The invention discloses a linkage sealing type air valve. The linkage sealing type air valve comprises a valve body, a driving rod and a linkage sealing mechanism, and the linkage sealing mechanism comprises a sealing ring, an inner end sealing plate, an outer end sealing plate, a rotary rod, a sliding telescopic rod, a guide column, a guide barrel and a connection rod. According to the linkage sealing type air valve, through rotation of the driving rod, it is achieved that the inner end sealing plate is rotationally separated or abuts against an inner side sealing convex ring, meanwhile, it is achieved that the outer end sealing plate does translation separating or abuts against a conical sealing ring surface, and thus, the synchronous double separation or sealing connection effect is achieved.

Description

technical field [0001] The invention relates to a linkage sealing damper. Background technique [0002] The damper is a regulating valve with a relatively simple structure, which is usually used to cut off or throttle the air flow in the pipeline; the existing damper generally includes a valve body, a valve plate, a driving rod, and a sealing ring; the sealing ring is installed on the valve body Inside, the valve plate is sealed or separately connected to the sealing ring inside the valve body, and then the driving rod extends downward from the upper end of the valve body to the upper end of the valve plate inside the valve body, by rotating the driving rod, the driving rod drives the valve plate to rotate, thereby It can complete the opening and closing or separation process around the outer side of the valve plate and the inner wall of the inner sealing ring of the valve body; but the above air valve structure has only one valve plate as the sealing part, and there is no m...

AI Technical Summary

Problems solved by technology

[0002] The damper is a regulating valve with a relatively simple structure, which is usually used to cut off or throttle the air flow in the pipeline; the existing damper generally includes a valve body, a valve plate, a driving rod, and a sealing ring; the sealing ring is installed on the valve body Inside, the valve plate is sealed or separately connected to the sealing ring inside the valve body, and then the driving rod extends downward from the upper end of the valve body to the upper end of the valve plate inside the valve body, by rotating the driving rod, the driving rod drives the valve plate to rotate, thereby It can complete the opening and closing or separation process around the outer side of the valve plate and the inner wall of the inner sealing ring of the valve body; but the above air valve structure has only one valve plate as the sealing part, and there is no multiple sealing protection structure, so that the sealing effect has hidden dangers

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