Steel fireproof and smoke-proof roller shutter structure

• Main Authors: LIU CHUNMEI, TANG LIPING, GUI XIAOBO, WANG RUI, GUI YONGLIN, JIA ZECHEN, GUI ZHIDAO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2019
• 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 relates to a steel fireproof and smoke-proof roller shutter structure. The curtain comprises a curtain plate and guide rails located on the two sides of the curtain plate. A smoke-proof device is arranged on the front surface of the curtain plate; the guide rail comprises a blocking groove tightly attached to the side face of the curtain plate and a supporting groove located outside the blocking groove and surrounding the blocking groove. Groove openings of the supporting grooves and the blocking grooves face the same direction and are arranged in the direction parallel to the curtain plate; an inward flanging is arranged at a groove opening of the supporting groove, an inner groove is formed by the flanging and the groove wall of the supporting groove, the groove opening of the inner groove faces the groove bottom of the supporting groove, the outer side wall of the inner groove is parallel to the curtain plate, a gap is formed between the outer side wall of the inner groove and the curtain