Fireproof door with triple fireproof function
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 东莞产权投资有限公司
- Publication Date
- 2018-07-20
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of fire doors, in particular to a triple fireproof door. Background technique
[0002] A fire door is a door that has a certain fire resistance, can prevent the spread of fire and smoke, and can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. Fire doors are generally located in fire compartments, evacuation Stairwells, vertical shafts, etc.
[0003] The structure size of the existing fire doors is often fixed. When the fire spreads and the fire range expands, the flames are easy to invade from both sides of the fire door. However, the existing fire doors cannot adjust their protection range in time as the fire spreads. If the protection is not in place, the trapped people are still in a more dangerous environment. Contents of the invention
[0004] The object of the present invention is to provide a triple fireproof fire door, to solve th...