Two-stage non-sealing self-control self-priming pump

The utility model discloses a two-stage sealing-free self-control self-priming pump which comprises a pump body, an impeller is movably arranged in the pump body through a rotating shaft, a liquid inlet is fixedly formed in one side of the surface of the pump body, a liquid outlet is fixedly formed in one side of the upper end of the pump body, and a storage mechanism used for storing liquid is arranged at the lower end of the pump body. The storage mechanism comprises a fixing frame, a storage bin, a piston, a connecting pipe and an electric control valve, the fixing frame is fixedly arranged at the lower end of the pump body, the storage bin is fixedly arranged in the fixing frame, the piston is movably arranged on one side in the storage bin in a clamped mode, and the connecting pipe is fixed between the storage bin and the pump body. According to the self-priming pump, the storage mechanism is arranged at the lower end of a traditional self-priming pump and used for storing water used for starting the sel