Door with small door for escaping

• Main Author: JINGQI LI
• Format: Patent
• Language: English
• Published: 20.08.2003
• Edition: 7
• 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 with a small escaping door 3, which is composed of a large door frame body 1, a large door leaf 2 which is also used as a door frame of the small escaping door 3, and a single-point hinge 8 which is arranged on the large door leaf 2, wherein, the large door leaf 2 is provided with a cavity 13 which has a similar shape with the small escaping door 3, and the cavity 13 and the small escaping door 3 have a big difference in size. When the utility model is used, the small escaping door 3 is just positioned in the cavity 13. The convex edge of the small escaping door 3 is provided with protective materials 10 with fireproof, flame retardant and heat-insulating functions, and can prevent fire from spreading from here and prevent the permeation of dense smoke. The small escaping door 3 and the large door leaf 2 are provided with similar lockset 5. The large door leaf 2 is connected with the small escaping door 3 through the single-point hinge 8, the left side or the right side of the small escaping door 3 can be installed on the large door leaf 2 with the single-point hinge 8 by adopting a horizontal mode, or the top side or bottom side of the small escaping door 3 can be installed on the large door leaf 2 with the single-point hinge 8 by adopting a vertical mode, and no matter which mode is adopted to install the single-point hinge 8, the small escaping door 3 can be easily and successfully opened by trapped people when the large door leaf 2 is deformed by being extruded and baked. The large door leaf 2 is also provided with an emergency illuminating lamp and a ventilating window can be opened downward.