Fireproof door

Abstract

The invention discloses a fireproof door. The fireproof door includes a narrow-side door frame made of metal materials, a concave cavity is formed in one of the surfaces of the door frame, one or morefireproof plates are arranged at the bottom of the concave cavity in an elastic hinging mode, the tops of the fireproof plates are moving ends, the outer side surfaces of the moving ends of the topsof the fireproof plates are sealed and limited by a limiting and sealing mechanism, the fireproof plates are parallel to the horizontal plane in the natural state and are laid in the concave cavity equidistantly, a filling cavity is formed between the adjacent fireproof plates, and the filling cavities are internally filled with fire insulation materials. According to the fireproof door, in case of a fire, a fire source can be flipped, thus the fire source stays away from a door body, the inside fireproof plates without making contact with the fire source are used for continuously preventing the fire, fireproof time of the fireproof plates is greatly increased, and a great deal of time is earned for rescuing and escaping.

Description

technical field [0001] The invention relates to a door, in particular to a fireproof door. Background technique [0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of people. At present, the types of fire doors can be divided into wooden fire doors, steel fire doors, steel-wood fire doors, other fire doors, etc.; and wooden fire doors are more commonly used, with beautiful appearance and light weight, so wooden fire doors are generally made of fire-resistant wood. Or flame retardant wood products as door frame, door frame...

AI Technical Summary

Problems solved by technology

However, in general, during a fire, the flame directly contacts the fire door panel, causing the door panel to carbonize after burning. However, although the fire door can prevent the spread of the fire within a certain period of time, it will continue to spread after excessive combustion, which is the best way for trapped people to escape. not long

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