Internal flow channel structure of stop valve

CN222577358UActive Publication Date: 2025-03-07ZHEJIANG WEILUN VALVE CO LTD
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Patent Information

Application Number
CN202421300869.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-03-07
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

The internal flow channel structure of the existing shut-off valve is not very accurate in the surface preparation of the mounting platform, making it difficult for the valve core to cooperate closely with the mounting platform, which is prone to leakage, and the sealing ring is easily deformed for a long time, affecting the sealing property.

Method used

The limiting assembly and sealing assembly are arranged on the mounting table of the valve body. The limiting assembly is composed of two mutually symmetrical limiting rings. A sealing ring is provided on the limiting ring. The sealing ring passes out from the water-through hole part. A central hole is provided at the center of the snap ring and the sealing ring. The sealing ring is used to improve the sealing effect and reduce leakage.

Benefits of technology

Through the design of limiting components and sealing components, the valve core can be closely attached to the sealing ring after moving downward, which significantly improves sealing and reduces leakage. The design of limiting and sealing rings is easy to disassemble and replace, and is suitable for long-term use.

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Abstract

The utility model relates to the technical field of valves, in particular to an internal flow channel structure of a stop valve, which comprises a valve body, a carrying table top is arranged in the valve body, a limiting component is arranged on the carrying table top and comprises an upper limiting ring and a lower limiting ring which are mutually symmetrical, and the two limiting rings are fixedly connected. The limiting ring located on the lower portion is fixedly installed on the carrying table top, water through holes are formed in the limiting rings, annular grooves are formed in the side faces, close to each other, of the two limiting rings, sealing assemblies are arranged on the limiting rings and comprise clamping rings clamped in the annular grooves, and sealing rings are fixedly installed on the top faces of the clamping rings. The sealing ring penetrates out of the water through hole in the upper portion, center holes are formed in the center of the clamping ring and the center of the sealing ring, and an anti-corrosion layer is arranged on the inner surface of the valve body. The utility model has the effect of further sealing, has the performance of anti-corrosion protection, and is favorable for prolonging the service life.
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