Miniature circuit breaker

A miniature circuit breaker, comprising:

• a button mechanism,
• a circuit breaker housing, and
• a locking mechanism,
• wherein the button mechanism is arranged at one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing, the locking mechanism comprises a second locking member, the second locking member is pivotally arranged on the circuit breaker housing, the circuit breaker housing comprises a second opening hole arranged on one side thereof, one end of the second locking member is in driving fit with the button mechanism, and the other end of the second locking member passes through the second opening hole and is in limit fit with a housing at an assembly position of the circuit breaker;
• and when the button mechanism is pulled out of the circuit breaker housing, the button mechanism drives the second locking member to rotate, so that the second locking member is released from the housing at the assembly position of the circuit breaker, and wherein the button mechanism comprises a button head, a button body, and a first connecting rod, one end of the first connecting rod is inserted into the button body and is in driving fit with the second locking member, the button head is located on one side of the button body so that a user operates the button head conveniently, the first connecting rod is in transmission fit with the button body, and when the button mechanism is pulled out of the circuit breaker housing, the first connecting rod drives the second locking member to rotate, so that the second locking member is released from the housing at the assembly position of the circuit breaker.