The present invention relates to a
circuit breaker mechanism, which includes a housing and a
handle, a lock catch, a connecting rod, an
interlocking member, a main rotating shaft, a pushing member and a reset
torsion spring arranged inside the housing. The lock catch and the connecting rod are rotatably arranged on the main rotating shaft. The driven hole communicates with the sliding groove. One end of the
interlocking member is linked with the
handle, and the other end is set as a driven end and arranged in the driven hole. A moving contact is arranged on the connecting rod, and a static contact is arranged inside the housing. The
handle drives the lock catch and the connecting rod to rotate through the
interlocking member. The reset
torsion spring is arranged on the main rotating shaft. The pushing member has a
tripping position for driving the lock catch and the connecting rod to separate and enabling the driven end to move into the sliding groove, and includes an anti-slip catch
torsion spring. The anti-slip catch torsion spring is arranged on the handle and has a driving end for driving the lock catch and the connecting rod to move towards the closed position. The lock catch is provided with a first contact end and a second contact end, and the distance between the first contact end and the main rotating shaft is greater than the distance between the second contact end and the main rotating shaft. The purpose of the present invention is to provide a
circuit breaker mechanism that is not prone to slipping of the catch.