Device for disassembling spring pin of blind hole

The utility model discloses a device for disassembling a spring pin of a blind hole. The device comprises a cylindrical pin puller body, a core rod, a nut, a bolt, and a hammer block; wherein the pin puller comprises a thread section and a gripper section along the axial direction; an outer thread is arranged on the thread section; the gripper section comprises a plurality of grippers which are uniformly distributed along the circumferential direction of the pin puller body; a bump extending outwards is arranged at the tail end of each gripper; the core rod is arranged inside the pin puller body; one end of the nut is connected with the thread section of the pin puller body via a thread; one end of the bolt is connected with the other end of the nut via the thread, and the hammer block is arranged on the bolt and can slide along the axial direction of the bolt. The device for disassembling the spring pin of the blind hole can conveniently disassemble the spring pin on a coupler; the elapsed time for disassemb