OPERATING MECHANISM AND LOCKING DEVICE THEREOF

摘要

An operating mechanism and a locking device thereof. A rigid locking piece of the locking device is movably assembled on a tripping bracket, and used for stopping and avoiding in a swinging direction in an unlocking position of a plunger latch swinging arm when the plunger latch swinging arm is in a locking position; a disconnection prevention structure used for preventing the locking piece from being disconnected from the plunger latch swinging arm when the locking piece stops the plunger latch swinging arm is arranged on the tripping bracket; and a force application structure used for switching stopping and avoiding of the locking piece to the plunger latch swinging arm is arranged on the locking piece. When a plunger latch is in a locking position, limiting and avoiding to the plunger latch swinging arm can be achieved by the stopping and the avoiding of the locking piece to the plunger latch swinging arm, and an assurance effect before swinging of the plunger latch swinging arm is exerted, so that a mistaken touch prevention function of a tripping device during use is added, the idling safety of the tripping device is ensured, and a locking function is exerted to keeping of opening and closing motion of the whole operating mechanism.