Locking device for an auxiliary lock

A locking device for an auxiliary lock comprising;

• a lock having a central opening for a key block to fit in, a safety button with two legs, two long holes in the lock for the legs of the safety button to extend through, to contact with an actuating wheel, the actuating wheel having outer peripheral teeth and being combined with a nut having an acutating plate to extend through an actuating hole in the bottom of the actuating wheel, the lock being covered with a cap, the lock fitting in the interior of a rotating ring and being combined with a base by means of two bolts screwed in two threaded holes in a bottom of the base;
• the rotating ring fitting around an outer spherical surface of the lock, and fitting and rotating in the base, the rotating ring having inner spherical teeth to engage or disengage from the teeth on the actuating wheel;
• the base shaped cylindrically, having an interior round cavity for the rotating ring to fit and rotate therein, the base having a bottom wall with a hole for the actuating plate to pass through, a hook on the wall, a position hole in the wall and a position block adjacent the hole, the hook positioning an elastic clamp which has shoulders to pinch in a first slot or a second slot of the actuating wheel, the position hole and the position block locating one end of a spring, having the other end fitting in a hole in the actuating wheel so that the actuating wheel can be pushed straight or rotatingly back to an original position by means of the spring;
• the actuating wheel being urged by the spring to have its teeth disengaged from the inner teeth of the rotating ring, the slots of the actuating wheel being movable for pinching by the elastic clamp by pressing in the safety button so that the teeth of the actuating wheel may engage the inner teeth of the rotating ring, the rotating ring being rotatable through 90.degree. to rotate the actuating wheel, which then rotates the actuating plate 90.degree. to extend a dead bolt for locking the lock.