Fire doors that can be opened automatically

Abstract

The invention belongs to the field of doors and windows of fixed construction, and particularly discloses a fireproof door capable of being opened automatically. The fireproof door capable of being opened automatically comprises a door frame and a door body. A plurality of first grooves are formed in the two ends of the door frame. A plurality of second grooves corresponding to the first grooves are formed in a wall. The two sides of each second groove are each provided with a third groove. The bottom end of each second groove is provided with an electromagnet connected with a power supply. The end, away from the electromagnet, of each second groove is in sliding connection with a magnetic block with the same magnetic poles as the electromagnet. The two ends of each magnetic block are in static connection with connection plates. One side of each connection plate is connected with a spring, and the springs are fixed in the third grooves. The two ends of the bottom of the door frame are each provided with a track. The indoor end of each track is fixedly provided with an air cylinder, and substances which generate gas when being heated are contained in the air cylinders. According to the technical scheme, when a fire happens, the door frame is automatically separated from the wall and pushed over, and therefore people can still escape for self rescue under the situation that neither the door body nor an escape pipe can be opened.

Description

technical field [0001] The invention belongs to the field of doors and windows of fixed buildings, in particular to a special-purpose door. Background technique [0002] Existing fire door kind is more on the market at present, and its doorframe and door leaf adopt metal to make mostly, fill refractory material in the sandwich layer of doorframe and door leaf. In order to prevent the fire from spreading, fire doors are used for the opening and closing doors of the escape passages on each floor. [0003] The Chinese invention patent document with the publication number CN104314445A discloses a new type of fireproof door, including a door frame and a door leaf made of a fireproof core board. The connection between the door frame and the door leaf is sealed by a fireproof expansion seal. There is a through hole that can allow the passage of a human body, and an escape pipe that can allow the passage of a human body is embedded in the through hole. The escape pipe is located on...

AI Technical Summary

Problems solved by technology

[0004] However, when a fire occurs, the overall temperature of the door leaf will rise, making the temperature of the door handle too high for people to open the fire door to escape, and the escape pipe will also be heated by the surrounding air or fire when the fire spreads. , the heated escape pipe and the sealing cover are prone to deformation, which makes the sealing cover and the escape pipe fused or bonded together, resulting in the escape pipe being unable to be opened, and the door frame and the wall cannot be separated, which is harmful to the safety of people's lives and property. caused great loss

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