Valve grinding maintenance device

The utility model relates to a valve grinding and maintaining device. The polishing device comprises a polishing disc (11), a driving motor (16), two clamping plates (3), a supporting panel (8), a supporting vertical plate (20), a movable base (12) and a fixed base (10). The two clamping plates (3) are clamped on the two sides of the flange (2) at the top of the valve body (1) respectively. The driving motor (16) is fixed to the movable base (12), an output shaft of the motor (16) is connected with the grinding disc (11), a fixed base (10) is fixedly installed on one side of the top of the supporting panel (8), the supporting vertical plate (20) is fixed to the movable base (12), the other end of the supporting vertical plate (20) is connected with a rotating shaft, and the rotating shaftis connected with the grinding disc (11). The check valve has the advantages that the check valve is directly installed on the valve body (1), the valve body (1) does not need to be detached, and thecheck valve is convenient