Plugging mechanism and vacuum pump cooler flushing device

The utility model relates to the field of vacuum pump cooling, and discloses a plugging mechanism and a vacuum pump cooler flushing device, which comprise a rotating assembly comprising a connecting shaft, two ends of the connecting shaft are fixedly connected with turntables, the eccentric positions of the turntables are provided with circulation ports, and the outer wall of the turntable at one end is rotatably connected with a control piece; the sealing assembly comprises an inlet pipe, a protruding piece is arranged at one end of the inlet pipe, a movable groove is formed in one end of the protruding piece, an upper valve is slidably connected into the protruding piece, and a sliding rod is arranged at one end of the upper valve and penetrates through the movable groove; the cooler comprises a cooling pipe, one end of the cooling pipe is fixedly connected with a backwashing inlet pipe and an inlet filter pipe, the other end of the cooling pipe is fixedly connected with a backwashing outlet pipe and an out