Connecting structure for anti-falling pin of mine car

The utility model discloses a connecting structure of a tramcar anti-drop pin, which comprises a tramcar body, a locking mechanism, a rotating mechanism and a connecting mechanism, the left side and the right side of the tramcar body are provided with grooves, the locking mechanism is arranged in the inner cavity of the groove, the rotating mechanism is arranged at the top of the groove, and the tramcar body comprises a connecting bottom plate, a carriage and moving wheels. The locking mechanism comprises a connecting plate, a guide bottom plate and a guide plate, the rotating mechanism comprises a clamping ring, a plug pin and a connecting rod, and the connecting mechanism comprises a connecting bolt and a connecting ring. The connecting bottom plate, the carriage and the moving wheels are arranged to jointly form the mine car body, ore can be transported, the connecting ring can be connected and limited through matched use of the rotating mechanism and the locking mechanism, then the two mine car bodies are