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Check valve capable of preventing valve seat and valve plug from dropping

A technology of check valve and valve seat, applied in the direction of control valve, valve device, function valve type, etc., can solve the problem that the valve core is easy to fall off, and achieve the effect of preventing falling off, low cost and simple structure

Inactive Publication Date: 2012-06-20
TIANJIN ZHONGLAN PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a check valve that can prevent the valve seat and core from falling off, aiming to solve the problem that the valve seat and core of the existing check valve are easy to fall off under the action of external force

Method used

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  • Check valve capable of preventing valve seat and valve plug from dropping
  • Check valve capable of preventing valve seat and valve plug from dropping

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Embodiment Construction

[0009] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0010] see figure 1 As shown, a check valve that can prevent the valve seat and core from falling off includes a valve body 1, a valve seat 2 and a valve core 3; the valve seat 2 is installed at the water inlet end of the valve body 1, and its outer wall and The inner wall of the valve is tightly connected; the valve core 3 is placed in the valve body, and it is slidably connected with the valve seat 2 through a sliding shaft 4 connected thereto and a circular hole in the center of the valve seat 2 together.

[0011] The valve seat 2 is provided with a passage for water to flow through.

[0012] The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the prin...

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PUM

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Abstract

The invention discloses a check valve capable of preventing a valve seat and a valve plug from dropping. The check valve comprises a valve body, a valve seat an a valve plug; the valve seat is mounted at a water inlet end of the valve body, an outer wall thereof is closely connected with an inner wall of the valve body; the valve plug is arranged in the valve body and is in sliding connection with the valve seat through a connected sliding shaft and a round hole in the centre of the valve seat. The check valve provided by the invention has simple structure and is low in cost, and is capable of preventing the valve seat and valve plug from dropping under external force.

Description

technical field [0001] The invention relates to a non-return valve capable of preventing a valve seat and a valve core from falling off. Background technique [0002] During the operation of the submersible pump, under the action of long-term external force, the valve seat and spool of the check valve will usually fall off, resulting in operational failure and affecting normal production operations. Contents of the invention [0003] The object of the present invention is to provide a check valve capable of preventing the valve seat and core from falling off, aiming to solve the problem that the valve seat and core of the existing check valve are easy to fall off under the action of external force. [0004] To achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] A check valve capable of preventing the valve seat and core from falling off, comprising a valve body, a valve seat and a valve core; the valve seat is installed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/06
Inventor 张福林
Owner TIANJIN ZHONGLAN PUMP