A diaphragm water pump and oral cleaning appliance

Abstract

The utility model discloses a diaphragm water pump and oral cavity cleaning device, including pump body, pump head, motor, gear drive assembly and connecting rod, be equipped with diaphragm piece on the pump body, and diaphragm piece is used to produce inhale or discharge action, the pump head includes upper cover, valve plate, is equipped with fluid pump cavity in the valve plate, and upper cover is set up with the inhale channel and the discharge channel of discharge channel communication with fluid pump cavity, and inhale channel is equipped with water inlet check valve, and discharge channel is equipped with water outlet check valve, gear drive assembly includes the motor gear of fixed on the motor output shaft and the eccentric gear of perpendicular meshing with motor gear, and the eccentric gear center is fixed with eccentric gear shaft, and the both ends of eccentric gear shaft are installed on the pump body through the bearing. The utility model discloses through motor rotation drive eccentric gear, and eccentric gear drives connecting rod, diaphragm piece and carries out reciprocating motion compression cavity, has reduced the length and width of pump, has facilitated user to hold and used and reduced the vibration feeling when user holds.

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