Reverse tripping structure of molded case circuit breaker

The utility model discloses a reverse tripping structure of a molded case circuit breaker, which comprises a circuit breaker top cover and a reverse tripping assembly arranged on the circuit breaker top cover, the reverse tripping assembly comprises a rotating shaft with a hook, a rotating hook driving the rotating shaft to rotate, a torsion spring and a connecting shaft, the circuit breaker top cover is provided with an accommodating cavity, and the connecting shaft is provided with a spring. The rotating hook and the torsion spring are arranged in the containing cavity through a connecting shaft, a first protruding part is arranged at one end of the rotating hook, a second protruding part is arranged at the other end of the rotating hook, the first protruding part and the second protruding part are located on the same side, and the rotating shaft comprises a first hook and a second hook abutting against the first protruding part. The first protruding part is further provided with a positioning groove facili