Self-flushing pump cover structure

The utility model provides a self-flushing pump cover structure, which belongs to the technical field of gear pumps, and aims to solve the problems that some impurities are remained in the pump cover and the use of the gear pump is influenced due to long-time accumulation when liquid flows through the pump cover in the use process of the existing pump cover, and the self-flushing pump cover structure is characterized in that a gasket is arranged on the rear end surface of a pump body; the pump cover is fixedly connected to the rear end of the pump body; the number of the gears is two, and the two gears are rotationally connected to the inner side of the pump body. The rotating shaft is fixedly connected to the inner side of the upper end gear; the screw plug is in threaded connection with the rear end of the pump cover; the compression spring is fixedly connected to the left end of the screw plug; the positioning piece is fixedly connected to the left end of the compression spring; the steel ball is fixedly c