Inlet crushing mechanism of water pump

The utility model relates to an inlet crushing mechanism of a water pump, which comprises a pump body, a motor fixedly mounted on one side of the pump body, a base fixedly mounted at the other end of the pump body, a discharge pipe connected outside the pump body and communicated with the inside of the pump body, and a plurality of sealing plates fixedly mounted inside one end, close to the motor, of the pump body. The output end of the motor is in driving connection with a rotating rod, the end, away from the motor, of the rotating rod penetrates through the sealing plate and extends into the pump body, the rotating rod is sleeved with an impeller located on one side of the sealing plate, and a mounting ring is arranged on one side of the impeller. In the using process, the inlet crushing mechanism of the water pump can effectively replace the cutting knife set, and the problems that most of cutting devices of an existing crushing mechanism are fixed through bolts, fixing structures such as the bolts are pro