| 摘要 |
The present invention relates to a fireproof door capable of blocking a flow of air or heat through a gap between a door and a door frame, improving crime prevention performance by improving a mounting structure between the door and the door frame and reinforcing a door frame structure, and minimizing heat loss through the fireproof door. The fireproof door (1) consists of a door (20) hinged to and mounted on one side of a door frame (10). A groove (13) is formed on a vertical frame (12) on a hinge-mounted side of the door frame (10), and a protrusion (15) on which a wing unit (21) of the door (20) is accommodated is formed on a vertical frame (14) on the opposite side. The wing unit (21) and an outer plate (22) of the door (20) form the same plane. An inner protrusion (16) on which an inner plate (24) of the door (20) is tightly pressed is formed on an inner side of the protrusion (15). A steel unit (23) mounted in the groove (13) is formed on the hinge-mounted side of the door (20). The outer plate (22) and the inner plate (24) of the door (20) are manufactured separately and mounted on each other by a fire resistant gasket (30). Inner frames (26, 28) are installed in the door (20) on both sides to reinforce the wing unit (21) and the steel unit (23). |
