Overflow valve

A technology for overflow valves and valve bodies, which can be used in safety valves, balance valves, valve devices, etc., and can solve the problems such as the valve seat not being tightly sealed, and achieve the effects of ensuring linear motion, simple structure, and convenient use

Inactive Publication Date: 2013-05-01
PINGHU RUIYANG PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an overflow valve, which can effectively solve the problem that the valve seat is not tightly sealed when the existing overflow valve is used.

Method used

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Embodiment Construction

[0014] see Figure 1 to Figure 4 It is an embodiment of an overflow valve of the present invention, an overflow valve, comprising a valve sleeve 1, a valve body 2, and a stainless steel valve seat 3, the valve sleeve 1 is provided with a flow hole 4 along the axis, and the valve sleeve 1 A first setting cavity 5 is opened at the tail end of the first setting cavity 5, an inner thread is arranged on the inner wall of the first setting cavity 5, and the flow hole 4 is communicated with the first setting cavity 5;

[0015] The front part of the valve body 2 is matched with the first setting cavity 5, the outer circumference of the front part of the valve body 2 is provided with external threads, and the valve body 2 also has a circulation hole 4 along the axis. The front part of the body 2 is provided with a second setting cavity 6;

[0016] The front end of the stainless steel valve seat 3 is pressed against the first setting cavity 5 of the valve sleeve 1 to close the flow hol...

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PUM

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Abstract

The invention discloses an overflow valve, wherein the tail end of a valve bush is provided with a first arrangement cavity; the inner wall of the first arrangement cavity is provided with an internal thread; a flow hole is communicated with the first arrangement cavity; the front part of a valve body is matched with the first arrangement cavity; an external thread is arranged on the circumference of the front part of the valve body; the valve body is also provided with a flow hole along the axis; the front part of the valve body is provided with a second arrangement cavity; the front end of a stainless steel valve seat is pressed in the first arrangement cavity of the valve bush to close the flow hole; the external diameter of the rear part of a stainless steel valve seat is equal to the internal diameter of the second arrangement cavity; a stainless steel spring is arranged between the rear part of the stainless steel valve seat and the bottom of the second arrangement cavity; the circumferential wall of the front part of the stainless steel valve seat is provided with a vertical first circular hole; and the rear end face of the stainless steel valve seat is provided with a second circular hole, which is communicated with the first circular hole, along the axis. The overflow valve has the advantages that the stainless steel valve seat does not deflect during movement, rectilinear motion can be guaranteed and the flow hole of the valve bush can be completely closed by the stainless steel valve seat after pressure in a system falls back.

Description

technical field [0001] The present invention relates to an overflow valve. Background technique [0002] With the rapid development of steel, aerospace, chemical, oil refining, coal chemical and shipbuilding industries, gas control safety is becoming more and more important in applications, and the demand for convenience, safety and stability in use has greatly increased. It is widely used, but the valve seat is often not tightly sealed when the existing overflow valve is used. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an overflow valve, which can effectively solve the problem that the valve seat is not tightly sealed when the existing overflow valve is used. [0004] In order to solve the above technical problems, the present invention is realized by the following technical solutions: an overflow valve, comprising a valve sleeve, a valve body, and a stainless steel valve seat, the valve sleeve is provided with a flow hole along ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04F16K17/164
Inventor 姚小弟陆君健施建平
Owner PINGHU RUIYANG PRECISION MACHINERY
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