| 摘要 |
PURPOSE: A door lock is provided to open/close a door by the operation of pulling a pressing unit or a pulling unit on both sides of the door. CONSTITUTION: A door lock comprises a first fixing unit(11), a second fixing unit(12), a movable member(10), a pressing unit(14), a pulling unit(15), a latch case(20), a locking bar(40), a door lock unit, a latch bolt(30), a latch-bolt moving unit, and a return spring(50). The first fixing unit is fixed to one side of a door. The second fixing unit is spaced from the first fixing unit apart and is fixed to the other side of the door. The movable member is inserted into through holes on the first and second fixing units and is movably installed. The pressing unit is movably inserted into the through hole of the first fixing unit. The pulling unit is movably inserted into the through hole(12a) of the second fixing unit.
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