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Impact buffering type check valve

A technology of check valve and disc, which is applied in the direction of control valve, valve device, function valve type, etc. It can solve the problems of shortening the service life of check valve, easy damage of disc, and large impact force of valve body, so as to reduce mechanical Effects of shock, prolonging closing action time, and prolonging service life

Active Publication Date: 2017-09-26
江苏联峰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used check valve has the following disadvantages: the closing time of the valve disc is short, and the impact force on the valve body is large, which makes the valve disc easy to be damaged, thereby shortening the service life of the check valve

Method used

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  • Impact buffering type check valve
  • Impact buffering type check valve

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] Such as figure 1 , figure 2 As shown, the buffer impact type check valve includes: a valve body 1, a valve chamber 2 is arranged in the valve body 1, and a liquid inlet communicating with the valve chamber 2 is arranged on the front side of the valve body 1 Channel 3, on the rear side of the valve body 1, a liquid outlet channel 4 communicating with the valve cavity 2 is provided, and a mounting bracket 5 is provided in the valve cavity 2 above the inner channel opening of the liquid inlet channel 4, and a mounting bracket 5 is installed on the mounting bracket 5. A rocker 7 is hinged to the left-right pin shaft 6, on which a valve disc 8 for opening or closing the inner channel opening of the liquid inlet channel is arranged, and the edge of the inner channel opening of the liquid inlet channel 3 extends outward integrally for a circl...

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Abstract

The invention discloses an impact buffering type check valve. The impact buffering type check valve comprises a valve body; a valve cavity is formed in the valve body, the front side of the valve body is provided with a liquid inlet channel, and the rear side of the valve body is provided with a liquid outlet channel; an installation bracket is installed in the position, above an inner side channel opening of the liquid inlet channel, inside the valve cavity; a swing rod is hinged to the installation bracket and provided with a valve flap; a circle of annular convex shoulder stretching into the valve cavity integrally extends outwards on the edge of the inner side channel opening of the liquid inlet channel; the annular convex shoulder is circumferentially provided with a plurality of back flushing balance holes penetrating through the annular convex shoulder in the front-back direction; and the outer diameter of the annular convex shoulder is smaller than that of the valve flap, and the effect that water currents flowing out from the back flushing balance holes in the direction opposite to the backflow water current flowing direction in a back flushing mode can always act on the front face of the valve flap in the process that the inner side channel opening is closed by the valve flap is ensured. The impact buffering type check valve has the advantages that in the process that the inner side channel opening is closed by the valve flap, pressure is applied to the front face of the valve flap all the time, the time of closing action of the valve flap is properly prolonged, and the service life of the check valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a buffer impact check valve. Background technique [0002] The check valve is a common valve, which is mainly installed on the outlet pipeline of pump equipment to prevent water or oil from flowing back. The structure of the currently used check valve is: including: a valve body, a valve chamber is arranged in the valve body, a liquid inlet passage communicated with the valve chamber is arranged on the front side of the valve body, and a valve chamber is arranged on the rear side of the valve body. There is a liquid outlet channel connected with the valve cavity, and a mounting bracket is arranged in the valve cavity above the channel opening inside the liquid inlet channel, and a rocker is hinged on the mounting bracket through a pin shaft, and a rocker is provided on the rocker for opening or closing. The disc of the channel opening inside the liquid inlet channel. When in use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03
CPCF16K15/03
Inventor 张波何正江郭秀丰
Owner 江苏联峰实业有限公司
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