Pull-out device for broken pipe joint

The utility model provides a broken pipe joint pulling-out device, which relates to the field of coal mine high-pressure rubber pipe replacement equipment, and comprises a pulling-out screw rod, a connecting rod and a nut, one end of the pulling-out screw rod is fixedly connected with the connecting rod, one end of the connecting rod is fixedly connected with the nut, the pulling-out screw rod is conical, and the nut is fixedly connected with the connecting rod. One end of the pulling-out lead screw is screwed into the high-pressure rubber pipe, an auxiliary pulling-out assembly is inserted into the nut, and the auxiliary pulling-out assembly pulls the connecting rod and the pulling-out lead screw to move upwards and brings the broken pipe joint out of the high-pressure rubber pipe. One end of the pulling-out screw rod is screwed into the high-pressure rubber pipe, so that the pulling-out screw rod is in threaded connection with the inner wall of the broken pipe joint, then the stressed rod is lifted up to pu