Hydraulic cartridge valve element pulling device

The utility model provides a pulling device for a valve core of a hydraulic cartridge valve, which comprises a sliding rod, a pull rod, a first pull rod, a second pull rod, a third pull rod, a fourth pull rod and a fourth pull rod, the first limiting block is fixed to the sliding rod and fixed to the side, away from the outer thread, of the sliding rod. The second limiting block is fixed on the sliding rod and is fixed on one side of the first limiting block; the sliding hammer is arranged on the sliding rod in a sliding mode and located between the first limiting block and the second limiting block. According to the pulling device for the valve element of the hydraulic cartridge valve, external threads of the sliding rod are matched with internal threads of the valve element of the cartridge valve, the pull rod is rotated, the sliding rod and the valve element of the cartridge valve are fixed, and finally the valve element of the cartridge valve is taken out through impact force generated when the sliding ha