One-way valve

A one-way valve, valve core technology, applied in the direction of control valve, safety valve, balance valve, etc., can solve the problem that the one-way valve cannot adjust the opening pressure, and achieve the effect of controlling the pipeline pressure

Inactive Publication Date: 2013-08-07
SUZHOU CUIZHI NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing one-way valve cannot adjust the opening pressure function and provide pressure protection for the next-level equipment, the present invention provides a one-way valve

Method used

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  • One-way valve
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Examples

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Embodiment Construction

[0013] Describe an embodiment below in conjunction with accompanying drawing, the present invention is further described.

[0014] exist figure 1 — image 3 Among them, the valve body 3 is provided with an inlet 2, an outlet 14, and an unloading port 12, all of which communicate with the valve cavity 15. The valve cavity 15 is equipped with a valve core 1 that can move axially along the valve cavity 15. The valve core 1 head The part is spherical and can completely block the inlet 2. The diameter of the head of the valve core 1 is smaller than the diameter of the valve core 1. The middle part of the valve core 1 is provided with an annular groove 6. The inside of the valve core 1 is provided with a communication pipe 4 and the two ends of the communication pipe 4 are respectively It is connected with the head of the spool 1 and the annular groove 6, and a check seal ring 5 is arranged between the annular groove 6 and the head of the spool 1. When the check valve is in the clo...

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PUM

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Abstract

The invention discloses a one-way valve which comprises a valve body, a valve core, an adjusting knob and a spring and is characterized in that the valve body is provided with an inlet, an outlet and an unloading port which are communicated with the valve cavity respectively. The valve core is arranged in the valve cavity, the tail portion of the valve core is connected with the spring, the other end of the spring is connected with the adjusting knob, and the adjusting knob is connected with the valve body. The one-way valve is adjustable in opening pressure, has an overflowing effect and effectively controls pipeline pressure.

Description

technical field [0001] The invention relates to a one-way valve, especially a one-way valve capable of adjusting opening pressure and preventing high-pressure impact. Background technique [0002] As we all know, a one-way valve is a directional control valve in which fluid can only flow in one direction and cannot flow in the opposite direction. Its working principle is that the fluid enters from the inlet, overcomes the spring force and friction force to open the valve port of the check valve, and the fluid flows from the inlet to the outlet; when there is no fluid at the inlet, under the action of the spring force and the outlet fluid pressure; the valve port is closed state, so that the pipeline from the outlet to the inlet is blocked, and the check valve is used in occasions where the fluid is not allowed to flow in the opposite direction. [0003] For example, Chinese Patent: Check Valve (200480007023.X) discloses a check valve with a valve seat piston pretensioned to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/02F16K17/06
Inventor 孟繁茂
Owner SUZHOU CUIZHI NEW TECH DEV
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