Circuit breaker closing executing mechanism

The utility model relates to a circuit breaker closing executing mechanism, which comprises a circuit breaker operating mechanism (1) and a closing electromagnet (2), and is characterized in that the end, which extends out of a closing bracket (202), of a closing movable iron core (201) of the closing electromagnet (2) is connected to a rotary closing lever (3), the rotary closing lever (3) is installed on a closing lever shaft (4) and can rotate around the closing lever shaft (4), a left end face (301) of the rotary closing lever (3) presses against the upper surface (501) of the right end of an aircraft frame (5), the right end of the aircraft frame (5) can touch a closing boss (6a) on a closing half-shaft (6) in the downward moving process so as to enable the closing half-shaft (6) to rotate to drive the circuit breaker operating mechanism (1) to close. According to the circuit breaker closing executing mechanism, the closing electromagnet is horizontally arranged above the operating mechanism, a knockout direction of the closing electromagnet is not in the same plane as a rotation opening direction of the closing half-shaft of the operating mechanism, motion transmission of the whole mechanism is simplified, the size of the circuit breaker closing executing mechanism is reduced, and the reliability of an opening operation is improved.