| 摘要 |
A fire door and frame capable of preventing dew condensation are provided to block the cold air from forming dews on the surfaces of the fire door and the frames positioned indoors by installing a duct inside the fire door, and allowing the warm room air to fill the inner spaces of the fire door and the frames through inlet holes and circulation holes disposed on the frames and the duct respectively. A fire door(100) has an insulation member filled inside the inner space of the fire door. A duct(110) is vertically installed in the inner space of the fire door. On two sides of the duct, circulation holes(114) facing the insulation member are drilled through. Inlet ports(103,113) are disposed on a lower part of the fire door positioned indoor. The room air is let into the duct through the inlet ports, and the room air fills the inner space of the fire door through the circulation holes of the duct. The duct is in a shape of a tube and has the same height as the inner space of the fire door. At least one duct is installed vertically inside the fire door. The insulation member has air passages corresponding to the circulation holes of the duct. Frames(220,230) support left, right, upper, and lower sections of the metal fire door. Each inner spaces of the frames are partitioned into two spaces. Of the two partitioned spaces, the ones connected to the outdoor are filled with the filling member, where as the ones connected to the indoor are filled with the room air. Inlet holes(214) are disposed on each of the frames. The inlet holes disposed on each of the frames have elongated width as that of rectangles. Plural inlet holes are disposed abreast each other. |
