The utility model discloses a heater
oil pump with damping structure, including pump body,
plunger subassembly and
check valve subassembly, and the one end of pump body is the oil outlet, and the other end is the oil inlet, and the hollow of pump body is provided with the cavity for containing
check valve subassembly, and the cavity is located the oil outlet intercommunication and is established, and
plunger subassembly includes the
plunger of activity setting in the pump body, and is provided with the oil hole on the pump body, and
check valve subassembly includes the
steel ball of activity setting in the cavity to block or away from the oil hole when plunger subassembly operates, and is provided with the reset member for driving
steel ball activity reset in the cavity to make
steel ball reseal the oil hole opening and the reset member is used for with linkage cooperation to reduce the shock action force and
noise of the collision between steel ball and the inner wall of oil hole opening when steel ball resets damping structure. The utility model has solved the problem of the shock action force and
noise of the frequent collision between steel ball and oil hole in the traditional heater
oil pump when check valve subassembly operates.