Civil air defense door

The utility model discloses a civil air defense door, which comprises a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame and a door frame, and is characterized in that the door frame comprises a top frame beam and a second fra...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIN WEIXUN, LIU XUGUANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS
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Beschreibung
Zusammenfassung:	The utility model discloses a civil air defense door, which comprises a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame, a door frame and a door frame, and is characterized in that the door frame comprises a top frame beam and a second frame beam; the air-tight door is hinged to the door frame and located on the first face side; the fireproof roller shutter is arranged on the frame beam and can be put down to seal the cavity of the door frame; the frame beam is provided with an installation part inwards from the second face in the forming direction of the door frame, the installation part is communicated with the cavity of the door frame, and the fireproof roller shutter is arranged in the installation part. The airtight door and the fireproof roller shutter are arranged on the two opposite sides of the door frame respectively, the airtight protection performance of the civil air defense door can be effectively improved through the double structure,