Pump body flow adjusting device

The invention relates to the technical field of water pumping equipment, in particular to a pump body flow adjusting device which comprises a pump body shell, a water inlet and a water outlet, a motor is installed on the upper portion of the pump body shell, an output shaft of the motor extends to the inner side of the pump body shell, and a transmission shaft is connected to the bottom of the output shaft of the motor; a plurality of impellers are uniformly mounted on the outer side of the transmission shaft; a bypass pipeline is further installed on one side of the pump body shell, the upper end and the lower end of the bypass pipeline are matched with the water inlet and the water outlet in position and height respectively, the interior of the bypass pipeline is communicated with the interior of the pump body shell, and a control valve is further installed on the bypass pipeline. The U-shaped bypass pipeline is arranged on one side of the pump body shell, water conveyed in the shell is shunted, part of wat