Fireproof door structure for fire safety

By installing a double-layer activated carbon filter plate structure in the fire door, the problem that existing fire doors cannot completely filter smoke is solved, achieving effective smoke filtration and convenient replacement of activated carbon plates, thus improving escape safety.

CN223824879UActive Publication Date: 2026-01-23FUJIAN ZHONGWEI FIRE PROTECTION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423255576.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2026-01-23
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

The water curtains on existing fire doors cannot completely filter smoke, causing smoke to enter the bodies of those escaping and causing physical discomfort.

Method used

The system employs a double-layer activated carbon filter plate structure, which uses limiting blocks and a heat insulation frame to fix the activated carbon plate, thereby achieving effective filtration of flue gas.

Benefits of technology

It effectively filters smoke, preventing smoke from entering the bodies of those escaping, increasing the lifespan of the device, and the activated carbon plate is easy to replace.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223824879U_ABST
    Figure CN223824879U_ABST
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Abstract

The utility model relates to the technical field of fireproof doors, and discloses a fireproof door structure for fire safety, which comprises a fireproof door and a fireproof door frame, the back of the fireproof door frame is in threaded connection with a hinge, the fireproof door is mounted on the surface of the inner wall of the fireproof door frame, and the fireproof door comprises a fireproof door plate, an observation window and a heat insulation component. The observation window is installed at the upper end of the fireproof door plate, and the heat insulation assembly is installed in the middle of the fireproof door plate. According to the fireproof door structure for fire safety, the limiting inserting block, the second activated carbon plate and the first activated carbon plate are arranged, the limiting inserting block is inserted into the connecting position of the second activated carbon plate and the heat insulation frame, limiting operation between the first activated carbon plate and the second activated carbon plate can be achieved, the double-layer filter plate is arranged, and the double-layer filter plate can conduct multi-layer filtering operation on smoke; and meanwhile, the double-layer filter plate can be conveniently detached and replaced, smoke can be prevented from entering the body of an escape person, and therefore the service time of the device can be prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically a fire door structure for fire safety. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. They are usually installed in fire-resistant partitions such as fire compartments, evacuation stairwells, and vertical shafts.

[0003] The prior art discloses a normally closed green building fire door with application number CN202420660491.1, which relates to the field of fire door technology. It includes a door frame and a heat-resistant fire door. The heat-resistant fire door is installed inside the door frame via hinges. A cooling and smoke-avoiding structure is installed on the upper wall of the door frame. A control structure is installed outside the cooling and smoke-avoiding structure, and an energy structure is installed on the upper wall of the control structure. The cooling and smoke-avoiding structure includes a water tank, a water pipe, a smoke-avoiding nozzle, and a cooling nozzle. The water tank is installed on the upper wall of the door frame, and one end of the water pipe is installed on the side wall of the water tank. This invention can cool the fire door, actively cooling it when the temperature is too high, thereby extending the service life of the fire door. Furthermore, when the fire door is opened, it forms a water curtain, ensuring personnel passage while preventing smoke from entering the fire escape route, ensuring safe escape for personnel.

[0004] The above-mentioned cooling operation of fire doors using water curtains is not effective because water curtains cannot completely filter smoke. Some smoke can easily pass through the water curtains and enter the bodies of those escaping, causing them discomfort. Utility Model Content

[0005] The purpose of this utility model is to provide a fireproof door structure for fire safety, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire door structure for fire safety, comprising a fire door and a fire door frame, wherein a hinge is threadedly connected to the back of the fire door frame, and the fire door is installed on the inner wall surface of the fire door frame.

[0007] The fire door includes a fire door panel, an observation window, and a heat insulation component. The observation window is installed at the upper end of the fire door panel, and the heat insulation component is installed in the middle of the fire door panel.

[0008] Preferably, the heat insulation component includes a heat insulation frame, a limiting block, a helical spring, an activated carbon plate one, a connector, a plug-in component, a metal slide rod, and an activated carbon plate two. The limiting block is inserted into the upper end of the heat insulation frame, the limiting block is inserted into the upper end of the activated carbon plate two, the helical spring is installed at the rear end of the heat insulation frame, the activated carbon plate one is inserted into the inner wall surface of the rear end of the heat insulation frame, the connector is threaded to the back of the activated carbon plate one, the plug-in component is movably connected to the outer surface of the helical spring, and the metal slide rod is fixedly connected to the rear end of the heat insulation frame.

[0009] Preferably, the second activated carbon plate is movably connected to the inner wall surface of the heat insulation frame, and the second activated carbon plate is movably connected to the front side of the first activated carbon plate. The second activated carbon plate is inserted into the interior of the heat insulation frame, so that the back side of the second activated carbon plate and the front side of the first activated carbon plate are connected, thereby enabling the position of the second activated carbon plate to be determined.

[0010] Preferably, the connector is threaded to the inward end of the plug-in, and there are four connectors distributed at the four corners of the back of the activated carbon plate. The connectors slide on the back of the activated carbon plate, and then the bolt is rotated to fix the activated carbon plate and the connectors together by threads.

[0011] Preferably, the connector is slidably connected to the surface of the metal slide rod, which is located inside the helical spring. The helical spring can push the connector outward, allowing the connector to slide on the surface of the metal slide rod, thus enabling the connector to be inserted into the interior of the activated carbon plate, thereby determining the position of the activated carbon plate.

[0012] Preferably, the thermal insulation frame is threadedly connected to the inner wall surface of the fireproof door panel, and the limiting block is movably connected to the inner wall surface of the fireproof door panel. The thermal insulation frame is inserted into the interior of the fireproof door panel, so that the thermal insulation frame can drive the limiting block to be inserted into the interior of the fireproof door panel. Then, the nut is rotated, and the nut can fix the thermal insulation frame and the fireproof door panel with threads, which facilitates the disassembly and replacement of the thermal insulation frame.

[0013] Preferably, the fireproof door panel is movably connected to the inner wall surface of the fireproof door frame, and the fireproof door panel is threaded to the front of the hinge. The fireproof door panel is connected by the hinge, which facilitates the rotation of the fireproof door panel and makes the disassembly of the fireproof door panel quick and convenient.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This fire safety door structure, by setting a limiting block, activated carbon plate two and activated carbon plate one, the limiting block is inserted into the connection between activated carbon plate two and the heat insulation frame, which can limit the operation between activated carbon plate one and activated carbon plate two, and has a double-layer filter plate, which can filter the smoke and prevent the smoke from entering the body of the escaping personnel, thereby increasing the service life of the device.

[0016] 2. The fire door structure for fire safety uses a limit block, a heat insulation frame, and an activated carbon plate II. The limit block is inserted into the connection between the heat insulation frame and the activated carbon plate II, making it easy to disassemble and replace the activated carbon plate II, thus making the replacement of the activated carbon plate II quick and convenient. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the back of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the heat insulation component of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified view of the structure at point A in the diagram.

[0021] In the diagram: 1. Fire door; 11. Fire door panel; 12. Observation window; 13. Thermal insulation component; 131. Thermal insulation frame; 132. Limiting block; 133. Helical spring; 134. Activated carbon board one; 135. Connector; 136. Insertion piece; 137. Metal slide bar; 138. Activated carbon board two; 2. Fire door frame; 3. Hinge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A fire door structure for fire safety includes a fire door 1 and a fire door frame 2. The back of the fire door frame 2 is threaded with a hinge 3, and the fire door 1 is installed on the inner wall surface of the fire door frame 2.

[0025] Fire door 1 includes fire door panel 11, observation window 12 and heat insulation component 13. The observation window 12 is installed on the upper end of fire door panel 11. Fire door panel 11 is movably connected to the inner wall surface of fire door frame 2. Fire door panel 11 is threaded to the front of hinge 3. Fire door panel 11 is connected by hinge 3, which facilitates the rotation of fire door panel 11 and makes the disassembly of fire door panel 11 quick and convenient. Heat insulation component 13 is installed in the middle position of fire door panel 11.

[0026] The thermal insulation component 13 includes a thermal insulation frame 131, a limiting block 132, a helical spring 133, an activated carbon plate 134, a connector 135, a plug-in component 136, a metal slide rod 137, and an activated carbon plate 138. The limiting block 132 is inserted into the upper end of the thermal insulation frame 131 and the upper end of the activated carbon plate 138. The activated carbon plate 138 is movably connected to the inner wall surface of the thermal insulation frame 131 and the front side of the activated carbon plate 134. The activated carbon plate 138 is inserted into the interior of the thermal insulation frame 131. This allows the back of activated carbon plate 138 to connect with the front of activated carbon plate 134, thus determining the position of activated carbon plate 138. A helical spring 133 is installed at the rear end of the insulation frame 131, which is threaded onto the inner wall surface of the fire door panel 11. A limiting block 132 is movably connected to the inner wall surface of the fire door panel 11. The insulation frame 131 is inserted into the fire door panel 11, allowing it to drive the limiting block 132 into the fire door panel 11. Then, rotating the nut secures the insulation frame. The heat insulation frame 131 is threadedly fixed to the fireproof door panel 11, facilitating the disassembly and replacement of the heat insulation frame 131. The activated carbon plate 134 is inserted into the inner rear wall surface of the heat insulation frame 131. Connector 135 is threaded onto the back of the activated carbon plate 134 and onto the inward end of the insert 136. There are four connectors 135, distributed at the four corners of the back of the activated carbon plate 134. The connectors 135 slide on the back of the activated carbon plate 134. Rotating the bolts secures the activated carbon plate 134 and the connectors. The threads between 135 are fixed, and the plug 136 is movably connected to the outer surface of the helical spring 133. The plug 136 is slidably connected to the surface of the metal slide rod 137. The metal slide rod 137 is located inside the helical spring 133. The helical spring 133 can push the plug 136 to move outward, so that the plug 136 slides on the surface of the metal slide rod 137, allowing the plug 136 to be inserted into the interior of the activated carbon plate 134, thereby determining the position of the activated carbon plate 134. The metal slide rod 137 is fixedly connected to the rear end of the heat insulation frame 131.

[0027] In use, the activated carbon plate 138 is pushed into the interior of the heat insulation frame 131 to determine its position. Then, the limiting block 132 is pushed inward to insert into the connection between the heat insulation frame 131 and the activated carbon plate 138, thus determining the position of the activated carbon plate 138.

[0028] Pushing activated carbon plate 134 forward allows it to be inserted into the inner wall surface of the heat insulation frame 131, connecting the front of activated carbon plate 134 with the back of activated carbon plate 138, thus enabling the movable connection between activated carbon plate 134 and activated carbon plate 138.

[0029] Push the insulation frame 131 forward so that the insulation frame 131 can drive the limiting block 132 forward, so that the insulation frame 131 and the limiting block 132 can be inserted into the inner wall surface of the fire door panel 11. At the same time, the insulation frame 131 and the threaded rod on the back of the fire door panel 11 are connected. Then, turn the nut so that the fire door panel 11 and the insulation frame 131 are threadedly fixed.

[0030] The activated carbon plate 134 moves forward, which in turn drives the connector 135 to move forward. The connector 135 pushes the plug 136 to move downward, and the plug 136 and the heat insulation frame 131 can compress the helical spring 133.

[0031] When the back of the activated carbon plate 134 and the back of the insulation frame 131 are on the same horizontal plane, the helical spring 133 begins to rebound. The helical spring 133 can push the plug 136 to move upward, so that the plug 136 slides on the surface of the metal slide bar 137, so that the plug 136 is inserted into the rear end of the connector 135. Then, the nut is turned, thereby limiting and fixing the activated carbon plate 134.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire door structure for fire safety, comprising a fire door (1) and a fire door frame (2), characterized in that: The fire door frame (2) is threaded with a hinge (3) on the back side, and the fire door (1) is installed on the inner wall surface of the fire door frame (2); The fire door (1) includes a fire door panel (11), an observation window (12) and a heat insulation component (13). The observation window (12) is installed at the upper end of the fire door panel (11), and the heat insulation component (13) is installed at the middle position of the fire door panel (11). The heat insulation component (13) includes a heat insulation frame (131), a limiting plug (132), a helical spring (133), an activated carbon plate (134), a connector (135), a plug-in (136), a metal slide rod (137), and an activated carbon plate (138). The limiting plug (132) is inserted into the upper end of the heat insulation frame (131), and the limiting plug (132) is inserted into the upper end of the activated carbon plate (138). The helical spring (133) is installed at the rear end of the heat insulation frame (131). The activated carbon plate (134) is inserted into the inner wall surface of the rear end of the heat insulation frame (131). The connector (135) is threaded to the back of the activated carbon plate (134). The plug-in (136) is movably connected to the outer surface of the helical spring (133). The metal slide rod (137) is fixedly connected to the rear end of the heat insulation frame (131).

2. The fireproof door structure for fire safety according to claim 1, characterized in that: The second activated carbon plate (138) is movably connected to the inner wall surface of the heat insulation frame (131), and the second activated carbon plate (138) is movably connected to the front side of the first activated carbon plate (134).

3. The fireproof door structure for fire safety according to claim 2, characterized in that: The connector (135) is threaded to the inward end of the plug (136). There are four connectors (135), which are distributed at the four corners of the back of the activated carbon plate (134).

4. The fireproof door structure for fire safety according to claim 3, characterized in that: The connector (136) is slidably connected to the surface of the metal slide bar (137), which is located inside the helical spring (133).

5. The fire door structure for fire safety according to claim 4, characterized in that: The heat insulation frame (131) is threaded to the inner wall surface of the fireproof door panel (11), and the limiting block (132) is movably connected to the inner wall surface of the fireproof door panel (11).

6. The fireproof door structure for fire safety according to claim 5, characterized in that: The fireproof door panel (11) is movably connected to the inner wall surface of the fireproof door frame (2), and the fireproof door panel (11) is threadedly connected to the front of the hinge (3).

Citation Information

Patent Citations

  • Normally closed type green building fireproof door

    CN222045573U