| 摘要 |
<p>An aspect of the present invention is to provide a dual locking device for a door capable of having more excellent safety by preventing a door locking device from being manually and arbitrarily unlocked while firmly locking a door by being composed of a lever unit with a dual hook member and a locking unit with a dual locking member. The dual locking device for a door according to an embodiment of the present invention comprises: the lever unit installed in the door for opening and closing a housing, and having the dual hook member; and the locking unit installed in the housing, and having first and second holding protrusions so that the dual hook member can be dually held and fixed.</p> |
