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High Stability Check Valves for Valves

A high-stability, one-way valve technology, applied in the direction of lifting valves, control valves, valve devices, etc., can solve the problems of reducing the service life of one-way valves, sealing failures, and reducing valve control accuracy, so as to improve work reliability, The effect of prolonging the service life and avoiding oil leakage

Active Publication Date: 2017-11-21
HEFEI CHANGYUAN HYDRAULICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the shaking of the valve core, the friction between the front guide body and the one-way valve chamber and the gasket will intensify, which will cause the peripheral wear of the front guide body of the valve core of the check valve, and the seal will be easily crushed, reducing the one-way The service life of the valve also leads to seal failure and oil leakage, which reduces the control accuracy of the valve

Method used

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  • High Stability Check Valves for Valves
  • High Stability Check Valves for Valves
  • High Stability Check Valves for Valves

Examples

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Embodiment Construction

[0022] See attached Figure 1-2 , the high stability one-way valve for valve of the present invention, comprises valve core 1 and spring 2; As figure 1 As shown, the valve core 1 includes a front guide body 101, a middle connecting body 102 and a tail end 103;

[0023] A secondary guide body 3 is provided on the outer peripheral surface of the middle connecting body 102, and a dismounting hole penetrating through the secondary guide body 3 along the axial direction of the valve core 1 is provided on the secondary guide body 3. Load tank 301.

[0024] In the high-stability one-way valve used for valves of the present invention, when the valve stem moves to the right to the working position, the steel ball moves upward, the valve core of the one-way valve rises, and the tapered part at the lower part of the tail end of the one-way valve The seal between the valve and the valve is released, the first oil passage and the second oil passage are connected, and the front end guide...

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Abstract

The invention discloses a high-stability one-way valve used for a valve. The one-way valve comprises a valve element and a spring, wherein the valve element comprises a front end guide body, a middle connecting body and a tail end, a second-level guide body is arranged on the outer circumferential face of the middle connecting body and provided with an unload groove penetrating through the second-level guide body in the axial direction of the valve element, and the unload groove is a square groove. The high-stability one-way valve used for the valve has the advantages that it can be ensured that the valve element will not shake when oil pressure fluctuates, the service life of the one-way valve is prolonged, and the work reliability of the valve is improved.

Description

technical field [0001] The invention relates to a one-way valve, in particular to a high-stability one-way valve used for a valve. Background technique [0002] The one-way valve is one of the common valves in the hydraulic system. The fluid in the one-way valve can only flow along the oil inlet, but the medium at the oil outlet cannot flow back. It is commonly known as a one-way valve, also known as a check valve or a check valve. Used in hydraulic systems to prevent reverse flow of oil flow. [0003] At present, the straight-through check valve used in the hydraulic system includes a valve core and a spring, which are directly installed in the check valve cavity 4 in the valve body 5 to realize the one-way flow of hydraulic oil between different oil passages. The spool generally includes a front guide body 101, a middle connecting body 102 and a tail end 103, such as image 3 shown. Such as Figure 4 , the existing one-way valve, when the valve core is installed in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/38F16K15/18
CPCF16K1/38F16K15/18
Inventor 孙亚东姚鹏刘根瑞吴化明张勇刘勇孙先东
Owner HEFEI CHANGYUAN HYDRAULICS