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Check valve

A technology of one-way valve and valve body, which is applied in the direction of lifting valve, valve detail, control valve, etc., can solve the problems of complex adjustment process and difficulty in online adjustment of the opening pressure of the one-way valve, so as to improve reliability, facilitate the adjustment process and precise effect

Pending Publication Date: 2018-02-02
上海诺科泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a one-way valve to solve the problems of difficult online adjustment of opening pressure and complicated adjustment process of the existing one-way valve

Method used

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Embodiment Construction

[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0035] like figure 2 As shown, the one-way valve proposed in this embodiment includes a valve body 1, a non-return assembly 3 and a pressure regulating device 4; the valve body 1 includes straight-through branch pipes and side-pass branch pipes perpendicular to each other, and the side-pass branch pipes are connected from the straight-through branch pipes. One end of the straight branch pipe is used as an inlet 11 for fluid inflow, and the end of the side branch pipe away from the straight branch pipe is used as an outlet 12 for fluid outflow. The non-return assembly 3 is set in the straight-through branch pipe of the valve body 1 and is located at the inlet 11, and includes a valve core 31, a spring 32 and a spring seat 33 arranged sequentially from the inlet 11 to the inside of the valve body 1, ...

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PUM

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Abstract

The invention belongs to the technical field of valves and discloses a check valve. The check valve comprises a valve body, a return stopping assembly and a pressure adjusting device. The valve body is provided with an inlet and an outlet, wherein fluid flows in from the inlet, and the fluid flows out through the outlet. The return stopping assembly is arranged at the inlet and used for controlling the check valve to be opened and closed. The return stopping assembly comprises a valve element, a spring and a spring seat, wherein the valve element, the spring and the spring seat are sequentially arranged from the inlet to the inner portion of the valve body. The pressure adjusting device is arranged between the inlet and the outlet and comprises an adjusting threaded rod and a guide rail, wherein one end of the adjusting threaded rod is in screw fit with the spring seat, and the guide rail is fixed to the inner portion of the valve body and matched with the spring seat. The other end ofthe adjusting threaded rod penetrates out of the valve body. The guiding direction of the guide rail is identical with the length direction of the spring. The check valve is of an angle type structure. Pressure adjustment adopts an externally arranged manner, and online adjustment is more convenient and more accurate.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to an angle check valve. Background technique [0002] At present, the structural type of the check valve is generally a straight-through type. like figure 1 As shown, the straight-through check valve is mainly composed of valve body 1', valve seat 2', valve core 3', spring 4' and adjusting bolt 5', the valve body 1' includes a straight pipe, and the valve seat 2' is set on the straight At one end of the tube, the valve core 3' is against the valve seat 2', and the spring 4' and the adjusting bolt 5' are arranged in sequence along the axis direction of the straight tube on the side of the valve core 3' away from the valve seat 2' When the one-way valve is adjusting pressure, by rotating the adjusting bolt 5' in the straight pipe, the adjusting bolt 5' moves along the axis direction, and the spring 4' is stretched or compressed accordingly, and the opening pressure of the one-way va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/00F16K17/06F16K1/36F16K27/02
CPCF16K1/36F16K15/00F16K17/0413F16K17/06F16K27/0209
Inventor 郭井和徐标
Owner 上海诺科泵业有限公司