| 摘要 |
A door lock device is provided to lock or unlock a door in an emergency or fire by locking or unlocking the door with an internal handle without a digital input. A door lock device includes an external module(10), an internal module(20), a mortise(30), an external movement change unit(40) and a mechanical switching unit(50). The external module(10) is coupled to the outer plane of a door, and has a digital input unit of a digital type for locking or unlocking the door, and a rotary type external handle. A rotary type internal handle is assembled to the internal module(20), and the internal module(20) is assembled to a door's inner side corresponding to an outer module and a door is positioned between the inner module and outer module. The mortise(30) is assembled between the external module(10) and the internal module(20). The mortise(30) has a latch bolt which is selectively inserted and withdrawn into/from a latch receiving unit formed on a door frame by the rotation of the external handle and the internal handle, and a latch bolt driving unit which is connected to the latch bolt and drives the latch bolt. The external movement change unit(40) is installed on the external module(10), and selectively changes the rotation movement of the external handle into the linear movement of the latch bolt. The mechanical switching unit(50) is installed on the external module(10) to insert and withdraw the latch bolt into/from the latch receiving unit, and operates the external movement change unit(40) mechanically.
|
