Dustproof structure and valve seat

By designing a dust-proof structure in the valve and using rubber sleeves and sealing strips to enhance sealing, the problem of poor sealing of traditional valves is solved, achieving the effect of stable sealing and extended service life.

CN223388004UActive Publication Date: 2025-09-26SHANGHAI QINGLIYUAN FLUID TECH CO LTD
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Patent Information

Application Number
CN202422930012.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-09-26
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The sealing structure of traditional valves is imperfect, and dust and impurities can easily enter, affecting the sealing, causing valve wear and shortening the service life.

Method used

A dust-proof structure is designed, including a sealing valve core assembly and a valve seat. A rubber sleeve and a sealing strip are used to enhance the sealing performance. The valve core and the valve seat are tightly fitted with a frustum-shaped structure. Multiple sets of annular sealing strips and a support platform design are combined to prevent dust accumulation.

Benefits of technology

It improves the sealing performance of the valve, reduces the influence of dust and impurities, extends the service life of the valve, and ensures stable sealing under different pressures and temperatures.

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Abstract

The utility model discloses a dustproof structure and a valve seat, and belongs to the technical field of valves, the dustproof structure is used for improving the sealing performance of the interior of a valve body, the dustproof structure comprises a valve body and a valve rod assembly, and the valve rod assembly is installed above the valve body; the dustproof mechanism comprises a sealing valve element assembly and a matched valve seat, the sealing valve element assembly comprises a connecting rod, the top of the connecting rod is in transmission connection with the valve rod assembly, the bottom of the connecting rod is in limiting connection with a valve element, the matched valve seat comprises a valve seat, the valve seat is arranged in the valve body, the valve element abuts against the valve seat in a sealed mode, and the valve element is in a circular truncated cone shape. The shape of the interior of the valve seat is matched with the valve element, the influence of dust on the valve element and the valve seat is effectively reduced, accumulation of dust and impurities is reduced, the rubber sleeve connected outside the valve element in a sleeving mode not only improves sealing performance, but also increases friction force between the valve element and the valve seat, the valve element is more stable in the opening and closing process, abrasion is reduced, and the service life of the valve element is prolonged. And the service life of the valve is prolonged.
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