| 摘要 |
An electronic door locking apparatus having a mortise lock including dead bolt and latch bolt installed therein, which is able to easily open a door from the outside by inserting a metal card having a magnet installed inside if a power source such as a dry battery is not supplied or if the locking apparatus is not useable due to other mechanical defects, and also able to perform a lock function since a dead bolt is locked if a door handle of an outer unit is rotated upwards when there are defects in a driving motor or electronic components. The door locking apparatus includes: a mortise lock having a dead bolt extended and retracted by a driving force of a motor installed in the inner unit in order to lock/unlock a door, and a door locking/unlocking latch bolt operated by the door handles of the inner and outer units; a latch bolt driver for operating the latch bolt; a dead bolt driver for operating the dead bolt; an emergency release assembly installed inside the outer unit and engaged with the door handle of the outer unit in order to unlock the locked dead bolt; and an emergency card inserted into the emergency release assembly to unlock the dead bolt.
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