The utility model discloses a
clutch mechanism of a door lock, which comprises a connecting seat, a
clutch piece, a
clutch pin and a mechanical lock cylinder, one end of the connecting seat is fixedly connected with a
handle, the other end of the connecting seat is provided with a mounting groove and a bolt channel communicated with the mounting groove, the clutch piece comprises a clutch part placed in the mounting groove, the periphery of the clutch part is provided with a pin
insertion hole, and the mechanical lock cylinder is arranged in the pin
insertion hole. An electric push rod device is arranged on the periphery of the bolt channel, a push plate is arranged at the
power output end of the electric push rod device, the clutch pin is sleeved with a reset spring and penetrates through the bolt channel, and the electric push rod device is used for pushing the clutch pin into the bolt channel; the mechanical lock cylinder comprises an output rod capable of being driven by a key to move linearly, the output rod is connected with the push plate through a transmission piece, and the output rod can push the clutch pin into the pin
insertion hole through the push plate. A user can achieve clutch in a mechanical or electric mode, when one mode loses
efficacy, the other mode can still work normally, and reliability and stability of clutch of the door lock are improved.