Corrosion-resistant duplex spring safety valve

By designing an anti-corrosion double spring safety valve, and utilizing the cooperation between the threaded rod and the extrusion plate, the problems of inaccurate adjustment and insufficient coordination of spring safety valves in the existing technology are solved, thereby achieving precise valve control and improved stability.

CN224414439UActive Publication Date: 2026-06-26俞跃平
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Patent Information

Application Number
CN202521825709.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2026-06-26
Estimated Expiration
2035-08-27

AI Technical Summary

Technical Problem

Existing spring safety valves lack complex coordination and synergistic effects among multiple components, making them unable to adapt to changing working environments or precise control requirements. They rely on a single structure to adjust the elastic force or individually control the valve stem's movement.

Method used

The corrosion-resistant double spring safety valve is adopted. By adjusting the cooperation between the threaded rod and the extrusion plate, the distance between the lifting plate and the support block is precisely controlled, forming a feedback control mechanism to achieve precise adjustment of the valve stem and dynamic response to fluid pressure.

Benefits of technology

It enables precise opening and closing control of valves, prevents leakage, ensures accurate regulation under different operating conditions, and improves the stability and adjustment accuracy of the system.

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Abstract

The utility model discloses an anti-corrosion duplex spring safety valve, which relates to the technical field of spring safety valves and comprises a valve body, valve covers are fixedly connected to two ends of the top of the valve body, two fixing rods are symmetrically and fixedly connected to the top of each valve cover, a top plate is fixedly connected to the top ends of the fixing rods, and a valve rod is slidably connected to the middle of each valve cover. By adjusting rotation of the threaded rod, the threaded rod can be matched with the first extrusion plate to drive the first extrusion plate to move downwards in the preset direction, so that longitudinal extrusion force is applied to the lifting plate, the first extrusion plate moves in the vertical direction through a lead screw structure of the threaded rod, and extrusion acting force is generated; the core function is that the distance between the supporting block and the lifting plate is adjusted, the distance between the lifting plate and the supporting block is accurately controlled by adjusting the relative position of the threaded rod and the first extrusion plate, and then the extrusion force borne by the limiting spring is adjusted, and the movement range and pressure of the valve rod are affected.
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