Door locking apparatus

An emergency release assembly connected to a door handle of a door locking apparatus for unlocking a locked dead bolt in response to insertion of an emergency card, said emergency release assembly comprising:

• a body including an opening for inserting the emergency card and a reception groove;
• upper and lower plates to facilitate easily inserting the emergency card into the opening of the body;
• an elastic plate to resiliently support the upper and lower plates against the body;
• a magnet-fixed clamp plate installed onto the upper plate and having through holes arranged therein for receiving a plurality of cylindrical magnets;
• a first slider having a plurality of cylindrical grooves and a spring reception groove arranged therein and slid by the emergency card, the cylindrical grooves corresponding to the through holes of the magnet-fixed clamp plate;
• a plurality of magnets arranged between the magnet-fixed clamp plate and the first slider to permit the first slider to move only upon a valid emergency card being inserted;
• a cover fixed in the body to receive the upper and lower plates, the elastic plate, the magnet-fixed clamp plate, the first slider and the magnets into the reception groove of the body, and simultaneously fixed in a housing and having an opening;
• a second slider fixed in the first slider through the opening of the cover and slid to give a bias force to rotate a rotary moving body and a plunger simultaneously;
• and
• a rod and a spring inserted into the spring reception groove to provide an elastic force to the first slider.

A door locking apparatus having an inner unit having a door handle and installed on one of two sides of a door, and an outer unit installed on another of the two sides of the door corresponding to the inner unit and having a door handle, the door locking apparatus comprising:

• a mortise lock having a dead bolt extended and retracted by a driving force of a motor installed in the inner unit to lock/unlock the door, and a door locking/unlocking latch bolt operated by the door handles of the inner and outer units;
• and
• a latch bolt driver to operate the latch bolt;
• said latch bolt driver comprising:
• a disk having a first projection, two second projections and a rectangular through hole arranged in a central protrusion thereof and including a pinhole for receiving a locking pin, wherein the first projection is fixed in a rotation driver of the outer unit and arranged between both ends of an elastic member to determine a swivel angle of the door handle of the outer unit, the second projections pushing a lift plate upward when rotating the door handle of the outer unit;
• and
• the lift plate including a protruded plate to ascend/descend in a vertical direction by the second projections when rotating the disk to push a slider of the mortise lock.