Lock cylinder connecting structure and mechanical lock body and mechanical-electrical integrated lock body thereof

The utility model discloses a lock cylinder connecting structure which comprises a lock cylinder connecting rotating shaft, a main dead bolt shifting fork and a heaven and earth hook shifting tooth which are coaxial, and bosses are arranged on the two faces of the main dead bolt shifting fork, the face, opposite to the main dead bolt shifting fork, of the lock cylinder connecting rotating shaft and the face, opposite to the main dead bolt shifting fork, of the heaven and earth hook shifting tooth. The boss of the lock cylinder connecting rotating shaft is staggered with the boss opposite to the main dead bolt shifting fork, the boss of the heaven and earth hook shifting tooth is staggered with the boss opposite to the main dead bolt shifting fork, and the boss of the lock cylinder connecting rotating shaft is consistent with the boss of the heaven and earth hook shifting tooth. The utility model further discloses a mechanical lock body which comprises a latch bolt assembly, a counter lock mechanism and a shel