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A secondary protection structure for a fire door

A secondary protection, fire door technology, used in fire doors, anti-gas doors, windows/doors, etc., can solve the problems of fire door demolition, inability to protect people's life safety, inability to carry out effective protection, etc., to avoid impact demolition Effect

Active Publication Date: 2022-05-17
浙江齐嘉消防科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing fire doors cannot provide effective protection in the face of the impact of an explosion in a fire, causing the fire doors to be easily demolished by the impact force in the explosion, thereby threatening the lives of people behind the door. life safety needs

Method used

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  • A secondary protection structure for a fire door
  • A secondary protection structure for a fire door
  • A secondary protection structure for a fire door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] see Figures 1 to 8 , a plane structure schematic diagram and a three-dimensional structure schematic diagram of an explosion-proof demolition fire door and its secondary protection structure.

[0027] A secondary protection structure for a fire door, comprising a door frame 2, a fire door main body 1 is movably installed inside the door frame 2, a trigger plate 9 is movably installed inside the fire door main body 1, and a smoke sealing device 7 is movably installed inside the door frame 2 A drive plate 11 corresponding to the trigger plate 9 is movably installed inside the door frame 2 , and a locking device 12 is movably installed between the trigger plate 9 and the drive plate 11 inside the door frame 2 .

[0028] In a specific implementation, the retracting device 3 is fixedly installed with a top block 10 on the side facing the trigger plate 9, and the top block 10 is a trapezoidal setting inclined on both sides, and the side of the trigger plate 9 facing the top ...

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PUM

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Abstract

The invention relates to the field of explosion-proof fire door equipment, in particular to an explosion-proof dismantled fire door and its secondary protection structure, including a fire door main body and a door frame. There is a locking block, a trigger plate is installed inside the main body of the fire door, and a smoke sealing device is installed inside the door frame. Connecting rod, and the connecting rod is fitted with the outer side of the retracting device, then when the indoor fire causes an explosion, the impact generated by the explosion can be used to contact the retracting device first, driving the retracting device to overcome the force of the spring to the main body of the fire door. The internal movement makes the disconnection and the fitting of the connecting rod, so that the locking block moves outward under the action of the springs on both sides, enters the inside of the locking opening, completely blocks the two sides of the main body of the fire door, and eliminates the impact force generated by the explosion. block.

Description

technical field [0001] The invention relates to the field of explosion-proof fire door equipment, in particular to an explosion-proof demolition fire door and its secondary protection structure. Background technique [0002] Fire doors, also known as fire doors, refer to doors that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire-resistant partition with a certain degree of fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. The fire door defined by the US NFPA and IBC codes is "any fire-resistant door leaf that can jointly provide a certain degree of fire protection for the opening." , Door stalks, hardware and other accessories. [0003] However, most of the existing fire doors cannot effectively protect against the impact of an explosion in a fire, causing the fire doors to be easily demolished by the impact force in the explosion, thereby threatening...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B5/12E06B5/14E06B5/16E06B7/18E05C9/06
CPCE06B5/12E06B5/14E06B5/164E05C9/06E06B7/18
Inventor 周立厚
Owner 浙江齐嘉消防科技有限公司