fireproof door

Abstract

The invention discloses a fireproof flavor-blocking door which comprises a doorframe (1), a door leaf (2), a fireproof expansible strip and a sealing unit, wherein the sealing unit is composed of a reinforcing plate (7), a sealing element fixing part (8) and a sealing element (9); the reinforcing plate (7) is arranged inside the door leaf (2) or the doorframe (1); the sealing element fixing part (8) is arranged outside the door leaf (2) or the doorframe (1) at a corresponding position of the reinforcing plate (7) and fixed on the reinforcing plate (7) by virtue of screws; and the sealing element (9) is fixedly arranged on the sealing element fixing part (8). According to the arrangement of the sealing unit, the fireproof flavor-blocking door disclosed by the invention has excellent sealingproperty, and the effect of isolating outdoor odor indoors or preventing indoor odor from flowing out can be achieved; and moreover, friction force between the doorframe and the door leaf is reducedunder the condition that the door has excellent sealing property, and under the condition that seal is not needed, the sealing state can be relieved at any time, and the sealing element can be conveniently replaced.

Description

technical field [0001] The invention relates to a fireproof door, in particular to a fireproof and odor-resistant door with a seal, which belongs to the field of building security. Background technique [0002] Fire prevention is a very important safety measure in construction engineering, and fire doors are an important means of adopting fire prevention facilities in buildings. Fire doors are national regulations and design specifications for doors that need to effectively prevent the spread of fire. They can isolate the fire in the event of a fire, delay the spread of fire, and strive for more escape time. Therefore, when fire doors are used in public places necessary. [0003] However, the functions of fire door products are relatively simple at present. Some places must use fire doors, but it is necessary to isolate outdoor odors indoors, or to prohibit indoor odors from flowing out. sealing performance. However, in the existing products, the scheme of making a good s...

AI Technical Summary

Problems solved by technology

[0003] However, the functions of fire door products are relatively simple at present. Some places must use fire doors, but it is necessary to isolate outdoor odors indoors, or to prohibit indoor odors from flowing out. sealing performance

However, in the existing products, the scheme of making a good seal between the fire door and the door frame under normal conditions will increase the friction between the fire door and the door frame, resulting in laborious opening and closing, and the sealing effect will decline after a long time. Difficult to replace sealing parts

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