ApplicationNo.: 20 1020662362.4 Application Date: 2010/2-04.
The utility model discloses a micro DC diaphragm submersible pump, which comprises an upper shell (15), a lower shell (20), a medium pressure disc (1), a DC motor (8) and a diaphragm pump body (10), and is characterized in that the upper shell (15) is arranged at the bottom of the diaphragm pump body. The pressure plate (1) is provided with a pressure plate overflow hole (4), a pressure plate motor hole (2), a pressure plate water outlet hole (3) and a reflux device (6), a DC motor (8) is installed in the cavity of the upper shell, the central shaft of the DC motor (8) passes through the pressure plate motor hole (2) and is connected with an eccentric wheel (9), and the diaphragm pump body (2) is connected with the eccentric wheel. The other side is provided with a pump body water outlet (12), which is connected with the pressure plate water outlet (3) in a sealed manner, and the pressure plate water outlet (3) is connected with the outer cavity of the pump body. It is a fully sealed micro DC diaphragm submersible pump, which can be directly placed in liquid, with high pressure and long lift.