| 摘要 |
A structure of a door in a building is provided to prevent burglary, and to lock and unlock the door by connecting an auxiliary locking apparatus to a knob through a wire and turning the knob of the door. A structure of a door(100) includes a fitting piece(400) mounted to an upper horizontal frame and a lower horizontal frame of a door frame(200) with a fitting hole, blade parts and bolts, a latch housing(300) mounted in upper and lower parts of the door and provided with a penetration hole, a latch(320) reciprocated to the fitting hole of the fitting piece and an elastic spring(310), a first pulley(120) mounted near the penetration hole of the latch housing, a second pulley(130) mounted in a portion crossing the first pulley and a knob, a connecting piece(600) integrally combined with the knob and turned with the knob, and a wire(140) coupled to a connecting link through the penetration hole and combined with the connecting piece through the first and second pulleys. A guide hole is formed in a cover(330), and a support plate is mounted to the latch and contacted to the elastic spring. |
