Patent attributes
A locking device includes a sleeve, an actuator, and a stopper. The sleeve defines a receiving cavity and an outlet communicating with the receiving cavity. An inner wall of the receiving cavity defines a sliding groove and a stopping groove. The actuator is provided in the receiving cavity. One end of the actuator is inserted in the outlet, and another end of the actuator extends out of the receiving cavity. The stopper is provided on the actuator. The actuator is configured to be rotated to switch the stopper between the sliding groove and the stopping groove. When the stopper resists in the stopping groove, the actuator is fixed in the sleeve. When the stopper is switched to the sliding groove, the actuator is pressed to slide along the sliding groove and extend out of the outlet.