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Fluid pressure stabilizing valve with end cover sealing support structure

A support structure and sealing structure technology, applied in the direction of safety valves, balance valves, valve devices, etc., can solve the problems of pressure reducing valve function failure, pressure reducing valve gaskets are easy to fall off, etc., to ensure stable pressure and ensure working stroke Effect

Pending Publication Date: 2020-02-14
谷力(厦门)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a fluid pressure stabilizing valve with a sealing support structure of an end cover. By setting a support ring on the top of the support seat to withstand the sealing structure, the problems proposed in the background technology are solved. There is a technical problem that the gasket of the pressure reducing valve is easy to fall off and cause the function of the pressure reducing valve to fail

Method used

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  • Fluid pressure stabilizing valve with end cover sealing support structure
  • Fluid pressure stabilizing valve with end cover sealing support structure
  • Fluid pressure stabilizing valve with end cover sealing support structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as Figure 2-8 As shown, a fluid pressure stabilizing valve with an end cover sealing support structure includes a hollow valve body 1, a support seat 2, a valve core 3, an elastic body 4, an upper end cover 5, an end cover sealing support structure and a lower end cover 6. The elastic body 4 is a spring or rubber or other elastic parts, and the upper end cover 5 is made of an elastic sealing material, preferably one of NBR, TPR, TPE, and EPDM. The upper end cover 5 is fixed on the upper end of the hollow valve body 1 by means of threaded connection or the like, and several water inlet holes 50 are opened on the upper end cover 5 along the circumferential direction, and the lower end cover 6 is fixedly installed on the lower end of the hollow valve body 1 by means of threaded connection or the like. , A water outlet hole 60 is opened on the lower end cover 6 . The upper and lower parts of the outer wall of the hollow valve body 1 are each provided with an O-ring g...

Embodiment 2

[0036] Such as Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that the sealing structure is a sealing gasket 512, a gasket groove 510 is opened at the center of the bottom of the upper end cover 5, and the sealing gasket 512 is fixedly installed in the gasket groove 510 , the upper surface of the support ring 22 bears against the gasket 512 . The rest of the structure of this embodiment is the same as that of Embodiment 1.

[0037] The working principle of this embodiment is:

[0038]Initial state: the fluid flows in from the fluid inlet end, flows into the bottom position of the valve core 3 through the water flow channel 30 of the valve core 3 , and the fluid pressure exerts an upward force on the valve core 3 . There is a pre-pressure F1 on the elastic body 4 during installation, and when the fluid pressure F2 is less than F1, it is not enough to push the valve core 3 to move, and the valve core 3 remains in the initial state.

[0039] Dec...

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Abstract

The invention discloses a fluid pressure stabilizing valve with an end cover sealing support structure. The fluid pressure stabilizing valve with the end cover sealing support structure comprises a hollow valve body, a support seat, a valve core, an elastic body, an upper end cover, the end cover sealing support structure and a lower end cover, wherein the interior of the hollow valve body is divided into a water inlet cavity and an air cavity through a partition plate; the support seat is arranged above the partition plate; a water flow channel is formed in the valve core; the valve core comprises a valve column and a valve cap; the outer wall of the valve cap is in sealing fit with the inner wall of the air cavity; an exhaust hole is formed in the wall surface of the air cavity; the elastic body is arranged between the partition plate and the valve cap and is in a compressed state; the valve column penetrates through the partition plate and the support seat and can move up and down;the end cover sealing support structure comprises a sealing structure and a support ring; and the sealing structure is arranged at the bottom of the upper end cover and used for sealing the top of thevalve column when the valve column runs to the highest point, and the support ring is arranged at the top of the support seat and used for abutting against the sealing structure. Due to the arrangement of the end cover sealing support structure, negative pressure generated by small over-current clearance can be effectively resisted, and the working stroke and the pressure stabilizing pressure ofthe pressure stabilizing valve are guaranteed.

Description

technical field [0001] The invention relates to the technical field of decompression devices, in particular to a fluid pressure stabilizing valve with an end cover sealing support structure. Background technique [0002] Such as figure 1 As shown, in the existing pressure reducing valve, in order to achieve a completely closed state, a gasket 100 is placed on the side of the valve core of the upper end cover to achieve complete sealing. This solution has a potential risk: when the fluid flows into the pressure reducing valve from the hole of the upper end cover at a faster speed, a negative pressure will be generated on the valve core side of the upper end cover, and the gasket 100 placed at this time will be under negative pressure. Detached from the upper end cap, resulting in failure of the function of the pressure reducing valve. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a fluid pressure stabil...

Claims

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Application Information

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IPC IPC(8): F16K17/30
CPCF16K17/30
Inventor 陈添育张江涛
Owner 谷力(厦门)科技有限公司
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