Full-stroke flow-adjustable soft sealing butterfly valve

The design of the full-stroke flow-adjustable soft-seal butterfly valve solves the problem that the butterfly plate can only open in one direction, realizes the effective sealing and flow regulation of the medium bidirectional flow pipeline, and improves the sealing performance and opening and closing convenience.

CN223344704UActive Publication Date: 2025-09-16BAOYI GROUP
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Patent Information

Application Number
CN202521703790.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2025-09-16
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

The butterfly disc of the existing butterfly valve can only be opened in one direction and cannot adapt to the pipeline where the medium flows in both directions, resulting in leakage or difficulty in opening and closing.

Method used

A full-stroke flow-adjustable soft-seal butterfly valve was designed. It adopted a soft sealing ring and a limit assembly to allow the butterfly plate to open in a clockwise or counterclockwise direction. Combined with a worm gear box, it could realize 180° reciprocating rotation, and the limit assembly was used to improve the sealing performance.

Benefits of technology

The butterfly plate can effectively seal the medium in two-way flow pipeline, reduce leakage, lower the difficulty of opening and closing, and improve the sealing performance and flow regulation ability.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of valves, in particular to a full-stroke flow-adjustable soft sealing butterfly valve which comprises a valve body, a butterfly plate, a valve seat, a valve rod and a driving mechanism, the valve seat and the butterfly plate are arranged in the valve body in a sealing fit mode, the driving mechanism drives the butterfly plate to rotate through the valve rod, the valve seat adopts soft sealing rings, and the soft sealing rings are symmetrical along the axis of the valve body. The soft sealing ring comprises a sealing part used for being in sealing fit with the butterfly plate and two fixing parts, the two fixing parts are arranged on the two sides of the sealing part respectively, an annular table is arranged on the inner wall of the valve body, the soft sealing ring wraps the annular table through the two fixing parts, the outer periphery of the butterfly plate abuts against the inner periphery of the sealing part to achieve sealing fit, and the butterfly plate cannot make contact with the fixing parts. According to the butterfly valve, the valve seat cannot limit the opening direction of the butterfly plate, the butterfly plate can be opened clockwise or anticlockwise, and the butterfly valve is suitable for pipelines in which media can flow in two directions.
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