Compression spring type diaphragm valve

By incorporating a ventilation switching component and a control shaft within the diaphragm valve, convenient and automatic heat preservation of the diaphragm valve is achieved, solving the problem of traditional diaphragm valves freezing in cold temperatures and improving heat preservation efficiency and ease of operation.

CN224315616UActive Publication Date: 2026-06-02YONGJIA GAIMI FLOW CONTROL CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGJIA GAIMI FLOW CONTROL CO LTD
Filing Date
2025-07-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When traditional diaphragm valves are used in cold temperatures, the flow channel is easily frozen after being disconnected, causing the valve core to be unable to move. Existing insulation measures are cumbersome, inefficient, and cannot be reused.

Method used

A spring-loaded diaphragm valve was designed. By setting a ventilation switching component in the valve body, the internal heat is kept warm by automatically switching the heating system, avoiding the need for an external insulation layer. Combined with the control shaft, the heating system can be manually controlled to achieve a convenient heat preservation effect.

Benefits of technology

It achieves automated internal heating of the valve body, avoiding the cumbersome operation of adding an external insulation layer, improving heating efficiency, and enabling convenient control of the heating system to adapt to cold temperatures.

โœฆ Generated by Eureka AI based on patent content.

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    Figure CN224315616U_ABST
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Abstract

This utility model discloses a spring-loaded diaphragm valve, comprising a valve body, flow channel, valve cover, mounting base, valve stem, valve core, sealing push block, spring, diaphragm, internal insulation cavity, side groove, venting switching assembly, input end, output end, and control shaft. This utility model has the following advantages and effects: it improves the insulation method of the valve body, eliminating the need for an additional external insulation layer. The venting switching assembly is installed via a side groove, and warm air is introduced through the input end. After the warm air is introduced, the venting switching assembly automatically switches to the on state, connecting the input and output ends, allowing the warm air to smoothly enter the internal insulation cavity for internal insulation. After the warm air has entered, the venting switching assembly switches back to the off state to prevent leakage of warm air from the internal insulation cavity. The control shaft allows manual switching of the venting switching assembly from the off state to the on state when no warm air is introduced at the input end, facilitating the discharge of warm air.
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