Detachable-bolt type stop pin

The invention provides a detachable-bolt type stop pin, which comprises a stop pin body. The stop pin body comprises a polygon frame body, a screw rod and a first nut. One vertex of the polygon framebody is fixedly connected with the first end of the screw rod; the joint between the vertex of the polygon frame body and the screw rod is provided with the first nut; and the first nut is arranged ona first bolt. The polygon frame body region is right in a pressure area of a ball head, so that the stop pin is allowed to offset extrusion force of the ball head better, and displacement of join hardware is limited; the first nut is arranged in a ball socket to prevent the stop pin body from sliding along a ball socket small opening and prevent wear between the polygon frame body and the side wall of the ball socket; and the screw rod externally protruding out of the ball socket small opening is fixedly connected through a pad, an anti-loose pad and a second nut. The detachable-bolt type stop pin is convenient to det