Barrel pressing mechanism for lifting barrel of garbage truck

The invention relates to a barrel pressing mechanism for barrel lifting of a garbage truck, and belongs to the technical field of auxiliary mechanisms for vehicles for collecting garbage. The mechanism comprises a barrel pressing plate, a barrel lifting frame and a pull arm, one end of the pull arm is hinged to a lifting arm of the pail loading device, and the other end of the pull arm is hinged to a downward extension arm of the pail pressing plate; the middle of the barrel pressing plate is hinged to the upper portion of the barrel lifting frame. The pull arm comprises a piston rod, a sleeve rod and a pressure spring, the piston rod is composed of a bent rod and a straight rod extending along one end of the bent rod, the sleeve rod is composed of a sleeve and a connecting rod extending along one end of the sleeve, the other end of the sleeve is open, the straight rod of the piston rod is inserted into the sleeve, and the pressure spring is located in the sleeve and sleeved on the outer ring of the straight