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One-way valve

A one-way valve, valve body technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve problems such as fluid flow failure

Active Publication Date: 2014-07-02
中钢集团衡阳机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of one-way valve can only be used in a vertical state, and if the flow rate of the fluid flowing from bottom to top is too fast, the middle part of the piston will seal the butt joint of the second shaft hole, so that the fluid will not flow from bottom to top

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0020] Such as figure 1 The first type of one-way valve shown includes a first valve body 1 and a second valve body 2, and the first valve body 1 and the second valve body 2 are threadedly connected, of course, they can also be fixedly connected by screws.

[0021] Such as figure 2 As shown, the center of the first valve body 1 is opened with a first shaft hole 11 whose diameter gradually increases toward the junction of the first valve body 1 and the second valve body 2 , and the first shaft hole 11 is in the shape of two steps. The first stepped surface 3 of the first shaft hole 11 is provided with a first pipe body 5 which is integrally cast thereon and protrudes toward the junction of the first valve body 1 and the second valve body 2 . Several second through holes 52 are arranged on the outer peripheral surface of the first pipe body 5 .

[0022] Such as image 3 As shown, the center of the second valve body 2 is opened with a second shaft hole 22 whose diameter gradu...

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Abstract

The invention aims to provide a one-way valve. The one-way valve is mainly used for resolving the problem that an existing one-way valve can not be communicated when flowing speed of fluid is overhigh. The one-way valve comprises a first valve body and a second valve body, wherein the center of the first valve body is provided with a first shaft hole in a stair shape, the center of the second valve body is provided with a second shaft hole in a stair shape, the diameter of the first shaft hole and the diameter of the second shaft hole are gradually increased towards the joint of the first valve body and the second valve body, and the diameter of the butt joint of the first shaft hole is equal to that of the butt joint of the second shaft hole. A piston which is in clearance fit with the first shaft hole and the second shaft hole is arranged, the end face of the piston is provided with a plurality of through holes or grooves, the first stair surface of the first shaft hole is provided with a first pipe which is cast to the first shaft hole in an integrated mode, and the outer circumferential surface of the first pipe is provided with a plurality of second through holes; the first through holes or the grooves are located in the end face, between the outer circumferential surface of the first pipe and the inner all of the butt joint of the first shaft hole, of the piston.

Description

technical field [0001] The invention relates to a one-way valve. Background technique [0002] One-way valve is a commonly used component in hydraulic and air control systems. The one-way valve in the prior art includes a first valve body and a second valve body connected to the first valve body. The centers of the first valve body and the second valve body are respectively opened. There is a first shaft hole and a second shaft hole that gradually increase in diameter towards the junction of the two, and the diameter of the butt joint of the first shaft hole and the second shaft hole is equal, and there is a groove on the edge The piston is clearance-fitted with the abutting portion of the first shaft hole and the second shaft hole. The one-way valve is generally used vertically. Under the action of gravity, the middle part of the piston without a groove covers the smaller diameter part of the first shaft hole, so that the fluid flowing from top to bottom cannot circulate, ...

Claims

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Application Information

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IPC IPC(8): F16K15/02
CPCF16K15/025F16K15/028
Inventor 周湘衡
Owner 中钢集团衡阳机械有限公司
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