Meet traction bolt for tramcar used in mine

The utility model relates to a meet traction bolt for a tramcar used in a mine, which belongs to the field of the traction device for the tramcar used in the mine. The meet traction bolt comprises a traction bolt, a meet head is arranged at one end of the traction bolt, and double nuts are arranged at the other end. The meet traction bolt is characterized in that a ring-shaped keyway is arranged at the top of one end of the traction provided with double nuts, the diameter of the ring-shaped keyway is less than the small diameter of the threads of the traction bolt, a ring-shaped key is fixed inside the ring-shaped keyway, and the ring-shaped key is fixed through a stud. The meet traction bolt has the advantages of simple structure and reliable connection, the meet traction bolt also solves the problem that the tramcar is unhooked because that double nuts is loosened for long time use, the service life of the traction device for the tramcar is prolonged, the production efficiency is improved, and the productio