Door leaf structure of super-large fireproof door

• Main Authors: ZHANG CAISHEN, SHEN JINGZHOU, YANG HONGMEI, LIU AIMING, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 18.10.2019
• Subjects: 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

The utility model discloses a door leaf structure of a super-large fireproof door. The door comprises a door leaf, a first inserting structure and a second inserting structure. The first steel plate and the second steel plate are galvanized steel plates and have high strength and corrosion resistance. The high-density fireproof plates, the magnesium oxide plates, the U-shaped framework galvanizedsteel plates and the high-temperature-resistant fireproof mud in the first steel plate and the second steel plate can effectively insulate heat and retard flame; the fire resistance and the self-strength of the door plate are improved; the first steel plate and the second steel plate are spliced and fixed through the first splicing structure and the second splicing structure; installation and fixation are convenient, and high strength is achieved; the utility model provides the door leaf with two plug-in structures, the door leaf can be flexibly selected according to the requirements of installation environments and p