| 摘要 |
Disclosed is a push-pull door lock having a rotatable latch bolt, allowing the resistance-free rotation of a latch bolt to the forced direction to unlock a locked door when a user pushes or pulls a handle to open the door, thereby allowing free access and preventing damage to the latch bolt or relevant components by lateral pressure caused when the user pushes the door. To achieve this, unlike a conventional structure of sliding or rotating of the latch bolt, the push-pull door lock fixates the latch bolt by a vertical latch bolt fixing shaft, has a latch bolt rotation interposition at one side. The push-pull door lock comprises a driving lever moving forward and backward by a lever handle rotating by the pushing or pulling operation of the inner or outer handle, and a lever stopper moving forward or backward on the rotation track of the latch bolt rotation interposition by the driving lever in order to rotate or stop the rotation of the latch bolt rotation interposition. Therefore, the push-pull door lock has high durability and allows a highly reliable operation. |
