The utility model discloses an
oral irrigator water pump with a transmission
noise reduction function, which belongs to the technical field of
oral irrigator water pumps, and comprises a lower cover, an upper cover, a motor, a
pinion, an adjusting shaft mechanism, a
crown gear, a connecting rod and a diaphragm, the upper cover is clamped on the lower cover, the adjusting shaft mechanism is connected with the upper cover and the lower cover, and the
crown gear is connected with the connecting rod. The diaphragm is installed in the lower cover and separates the interior of the lower cover from the pumping bin, the
crown gear is hinged to the adjusting shaft mechanism, the connecting rod is connected with the crown gear and the diaphragm, the crown gear drives the connecting rod to swing, the motor is installed in the lower cover, and the diaphragm is connected with the motor. The
pinion is mounted at the driving end of the motor, and the
pinion is meshed with the crown gear; the upper cover and the lower cover are clamped through the adjusting shaft mechanism, the distance between the upper cover and the lower cover can be strictly controlled and is not affected by external force, and transmission
noise and
power consumption of the water pump are effectively reduced.