Minipump

The utility model discloses a minipump, including motor, drain pan, eccentric shaft, cylinder and connecting rod. The drain pan install in on the motor. The eccentric shaft with the motor shaft of motor is connected. The cylinder install in on the drain pan. The connecting rod slope is inserted the eccentric shaft. The connecting rod top is equipped with the convex part, the bottom surface of cylinder be equipped with with the recess that the convex part matches and connects, the top surface of cylinder is equipped with the oil storage tank, the cylinder is equipped with the intercommunication the oil storage tank reaches the through -hole of recess. The utility model discloses embodiment's minipump arrives at moving in -process, the lubricating oil energy current in the oil storage tank the convex part reaches lubricated effect has been played on the surface of recess, has reduced the convex part with frictional force between the recess, and then prolonged minipump's life with increased the stability of minipump working property.