The utility model is applicable to the technical field of shock absorbers, and provides a universal contact pin type inflating tool, which is used for inflating an oil cylinder and a
piston rod and comprises a clamping tool, an inflating
air chamber and an inflating pressure head, the inflating
air chamber is mounted on the clamping tool, the inflating pressure head is pressed on the
piston rod in a sleeving manner, and the inflating
air chamber is a flexible inflating block; the flexible inflation block, the inflation pressure head, the oil cylinder and the
piston rod are matched, clamped and sealed to form an inflation space, so that the inflation condition is met, and inflation operation of the
piston rod and the oil cylinder is achieved. According to the universal contact pin type inflation tool, on one hand, the inflation efficiency and the inflation effect can be greatly improved, on the other hand, sealing inflation of piston rods and oil cylinders of different sizes can be effectively achieved through the action of the flexible inflation block, meanwhile, the piston rods of different diameters are pressed in a sleeving mode through the action of the inflation pressure head, and the inflation efficiency is greatly improved. Sealing and air inflation of the
piston rod with the step and the oil cylinder can be achieved, and therefore the air inflation universality is effectively improved.