A cushion type check valve

Abstract

The utility model relates to valve technical field discloses a kind of buffer check valve, including valve body, the left end of valve body is provided with buffer mechanism, the right end of valve body is provided with pressure relief mechanism, the top of valve body is fixedly connected with flange plate, the buffer mechanism includes liquid inlet pipe, the left end of liquid inlet pipe is fixedly connected with liquid inlet mounting disc, the bottom of flange plate is fixedly connected with buffer hydraulic pressure rod, the bottom of buffer hydraulic pressure rod is fixedly connected with valve clack, the inner wall of valve body is equipped with buffer groove, the top of buffer mechanism flange plate is fixedly connected with mounting plate. The utility model is guaranteed the sealing property while avoiding sealing ring and valve clack direct contact by the sealing ring and the sealing gasket of valve clack bottom being set in the inner wall of valve body, when medium backflow after pump is closed, valve clack drops, extrudes sealing ring and sealing gasket, avoid sealing ring and valve clack direct contact while guaranteeing sealing property, prevent mechanical structure collision from causing structure loosening, cause airtightness to drop, guarantee device normal operation.

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