Metal door with fire prevention and heat insulation functions

Abstract

The invention discloses a metal door with fire prevention and heat insulation functions. The metal door comprises a door frame; a groove is arranged in the door frame; a cavity is arranged in a door body; an elastic hose is fixed to the inner wall of the groove; a first fireproof packet is fixed onto the side wall of the elastic hose, and a second fireproof packet is arranged in the cavity, so that effects of fire resistance, flame retardancy and heat insulation are exerted; when a smoke transducer detects that a density value reaches a preset value, a gas pump can be triggered so as to make smoke pass through a wind inlet scoop, the elastic hose and a one-way valve in sequence and is pumped out by the gas pump; meanwhile, high-temperature gas can make the elastic hose expanded so as to push the first fireproof packet so as to seal a gap between the door frame and the door body by filling so as to comprehensively cut off fire spreading and smoke diffusion; meanwhile, heat of the door frame and the door body is absorbed by the first fireproof packet and the second fireproof packet so as to delay the time of deformation of the metal door at high temperature; and due to the elastic expansion feature of the elastic hose, normal opening and closing of the metal door is not influenced so as to be conducive to escaping or rescue in a fire accident.

Description

Technical field [0001] The invention relates to a metal door, in particular to a metal door with fire and heat insulation functions. Background technique [0002] The door refers to a device that can be opened and closed at the entrance and exit. The metal door is a common type of door. However, it is baked at high temperature during a fire, and the heat insulation effect is poor. At the same time, the high temperature can easily cause warping, bending and other deformations of the metal door. The destruction of the metal door will affect the normal and rapid opening of the metal door, which greatly reduces the chance of escape. On the other hand, due to the gap between the door and the door frame, flames and smoke are easy to escape from the gap, which is not very good. Prevent the spread of fire and smoke, so in the event of an accident, it cannot provide good safety protection performance. Summary of the invention [0003] In view of this, the purpose of the present invention ...

AI Technical Summary

Problems solved by technology

[0002] The door refers to the device installed at the entrance and exit that can be opened and closed. The metal door is a common type of door, but it is baked at high temperature in case of fire, and the heat insulation effect is poor. When the metal door is damaged, it will affect the normal and fast opening of the metal door, which greatly reduces the chance of escape. Prevent the spread of fire and smoke diffusion, so in the event of an accident, it cannot play a very good safety protection performance

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