Hinge mechanism and wearable device

The utility model relates to the technical field of wearable equipment, and particularly discloses a hinge mechanism and a wearable device.In the hinge mechanism, a fixing frame comprises a frame body and a supporting piece; the reset piece is connected with the fixing frame. The hinged end of the reset piece gets close to or away from the fixing frame. The cam frame is arranged on one side of the fixing frame in the moving direction of the hinged end reset piece, the hinged end of the reset piece penetrates through the fixing frame to be hinged to the cam frame, so that the cam frame rotates relative to the fixing frame, the cam frame forms a groove matched with the supporting piece, the upper side wall of the groove is provided with a cam face, and the supporting piece forms a friction part abutting against the cam face. The cam face is matched with the friction part and drives the hinged end of the reset piece to be away from the fixing frame. By means of the arrangement of the structure, when the cam fram