Fireproof door with flame-retardant function
By designing flame-retardant and fire-extinguishing chambers within fire doors and incorporating multiple flame-retardant and fire-extinguishing components, and utilizing the thermal properties of specific materials, multiple flame-retardant and fire-extinguishing functions are achieved. This solves the problem that existing fire doors cannot effectively retard and extinguish fires, and improves the fire resistance and high-temperature resistance of fire doors.
Patent Information
- Application Number
- CN202520315179.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing fire doors are not effective at preventing and extinguishing fires. Their simple structure makes them easily damaged by high temperatures, affecting their fire resistance and practicality.
Design a fire door with a flame-retardant chamber and a fire extinguishing chamber, with built-in flame-retardant and fire extinguishing components, including an elastic frame, sandbags, baffles, fireproof boards, heat insulation boards, and flame-retardant boards. Utilize the properties of aluminum alloy materials and calcium silicate board materials to achieve multiple flame-retardant and fire extinguishing functions.
It improves the fire resistance of fire doors, effectively extinguishes fires, prevents the spread of fire, and enhances the high-temperature resistance of fire doors.
Smart Images
Figure CN223894057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire doors, specifically a fire door with flame-retardant function. 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 fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, etc., and are specifically used in buildings to isolate fire sources. They play a vital role in fire prevention, allowing people to escape through fire doors in the event of a fire. Currently, fire doors primarily prevent the spread of fire, but they cannot extinguish or retard the fire, resulting in a reduced fire-retardant effect. Furthermore, existing fire doors have simple structures and cannot provide multiple layers of fire-retardant protection, making them susceptible to damage from high temperatures, thus affecting their fire resistance and practicality. Therefore, it is necessary to design a fire door with fire-retardant properties to address these issues. Utility Model Content
[0003] The purpose of this invention is to provide a fireproof door with flame-retardant function to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a fire door with flame-retardant function, comprising a fire door body and a door frame fitted on the outside of the body, a flame-retardant cavity is provided at the center of the inner side of the body, and fire extinguishing cavities are respectively provided on the inner side of the body and on both sides of the flame-retardant cavity, fire extinguishing components for flame-retardant fire extinguishing are installed inside the fire extinguishing cavities, and fire-resistant components for flame-retardant fire prevention are installed inside the flame-retardant cavities, and the door frame is hinged to the body.
[0005] Preferably, the fire extinguishing device includes an elastic frame installed on the inner wall of the flame-retardant chamber. A movable plate is fixedly connected to one side of the elastic frame. A sandbag for extinguishing fire is placed on one side of the movable plate and inside the flame-retardant chamber. A baffle is embedded on the other side of the flame-retardant chamber. The baffle is mainly made of aluminum alloy and is installed and fixed to the body by bolts.
[0006] Preferably, the fireproof component includes a fireproof plate installed inside the flame-retardant cavity, with heat insulation plates connected to both sides of the fireproof plate, and a flame-retardant plate fixedly connected to one side of the heat insulation plate. The flame-retardant plate is mainly made of calcium silicate board material.
[0007] Preferably, a fireproof layer is embedded on the inner side of the heat insulation board.
[0008] Preferably, one side of the flame-retardant plate is connected to a plurality of fireproof parts arranged in a uniform manner.
[0009] Preferably, a spring sheet is embedded inside the elastic frame.
[0010] Preferably, a sealing portion extends from the outer edge of the body.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. The main body opens or closes by hinged rotation within the door frame. The fireproof components inside the flame-retardant cavity provide multiple layers of flame retardant protection for the main body. The fire extinguishing chambers on both sides of the flame-retardant cavity provide flame retardant protection for both sides of the main body, thus providing double fire protection. The fire extinguishing components can extinguish the fire on both sides of the main body, prevent the spread of fire, and improve the fire protection effect of the main body.
[0013] 2. The baffle is made of aluminum alloy. Due to the low thermal conductivity and high coefficient of thermal expansion of aluminum alloy, the baffle will crack or melt when baked by the high temperature of the fire. The elastic frame in the flame-retardant cavity can squeeze and push the sandbag on one side of the movable plate. The sandbag is burned and damaged by the fire, so that the sand inside the sandbag will fall and cover the fire. The sand will extinguish and retard the fire on the side of the fire door, and prevent the fire from spreading. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0015] Figure 2 This is a schematic diagram of the overall structure of the door frame and the main body of this utility model in the open state;
[0016] Figure 3 This is a left-side sectional perspective view of the overall structure of this utility model;
[0017] Figure 4 The overall structure of this utility model Figure 3 Enlarged view of point A in the middle;
[0018] Figure 5 The overall structure of this utility model Figure 4 Enlarged view of section B in the middle.
[0019] In the diagram: 1. Body; 2. Door frame; 3. Flame-retardant chamber; 4. Fire extinguishing chamber; 5. Elastic frame; 6. Movable plate; 7. Sandbag; 8. Baffle; 9. Fireproof board; 10. Heat insulation board; 11. Flame-retardant board; 12. Fireproof layer; 13. Fireproof part; 14. Spring; 15. Sealing part. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] Please refer to Figure 1-5 As shown, this utility model provides a fire door with flame-retardant function, including a fire door body 1 and a door frame 2 fitted on the outside of the body 1. A flame-retardant cavity 3 is provided at the center of the inner side of the body 1. Fire extinguishing cavities 4 are respectively provided on the inner side of the body 1 and on both sides of the flame-retardant cavity 3. Fire extinguishing components for flame-retardant fire extinguishing are installed inside the fire extinguishing cavity 4. Fire extinguishing components for flame-retardant fire prevention are installed inside the flame-retardant cavity 3. The door frame 2 is hinged to the body 1. A sealing part 15 extends from the outer edge of the body 1.
[0023] The main body 1 is hinged and rotated within the door frame 2 to open or close. The sealing part 15 on the edge of the main body 1 seals the gap between the main body 1 and the door frame 2, preventing the gap between the main body 1 and the door frame 2 from supplying oxygen to the fire. The fireproof component inside the flame-retardant cavity 3 can provide multiple flame-retardant protection for the main body 1. The fire extinguishing cavity 4 on both sides of the flame-retardant cavity 3 can provide flame-retardant protection for both sides of the main body 1, and at the same time, it can also provide double fire protection for the main body 1. The fire extinguishing component can extinguish the fire on both sides of the main body 1, prevent the fire from spreading, and improve the fire protection effect of the main body 1.
[0024] Specifically, the fire extinguishing device includes an elastic frame 5 installed on the inner wall of the flame-retardant chamber 3. A movable plate 6 is fixedly connected to one side of the elastic frame 5. A sandbag 7 for fire extinguishing is placed on one side of the movable plate 6 and inside the flame-retardant chamber 3. A baffle 8 is embedded on the other side of the flame-retardant chamber 3. A spring 14 is embedded inside the elastic frame 5. The baffle 8 is mainly made of aluminum alloy and is installed and fixed to the body 1 by bolts.
[0025] Among them, the baffle 8 is made of aluminum alloy. Due to the low thermal conductivity and high thermal expansion coefficient of aluminum alloy, the baffle 8 will crack or melt when baked by the high temperature of the fire. The elastic frame 5 in the flame-retardant cavity 3 can squeeze and push the sandbag 7 on one side of the movable plate 6. The spring piece 14 can squeeze and push the elastic frame 5, increasing the pushing strength of the elastic frame 5. The sandbag 7 is burned and damaged by the fire, so that the sand in the sandbag 7 can extinguish and retard the fire on the side of the fire door, and prevent the fire from continuing to spread.
[0026] More specifically, the fireproof component includes a fireproof plate 9 installed inside the flame-retardant cavity 3, with heat insulation plates 10 connected to both sides of the fireproof plate 9, a flame-retardant plate 11 fixedly connected to one side of the heat insulation plate 10, a fireproof layer 12 embedded inside the heat insulation plate 10, and a plurality of uniformly arranged fireproof parts 13 connected to one side of the flame-retardant plate 11. The flame-retardant plate 11 is mainly made of calcium silicate board material.
[0027] In addition, the fireproof board 9 can block and prevent fire, the heat insulation board 10 can block heat and prevent excessive heat from damaging the main body 1 or causing heat transfer, the flame retardant board 11 can further prevent and retard fire, the multiple fireproof parts 13 on one side of the flame retardant board 11 can increase the fireproof contact area of the flame retardant board 11, and the fireproof layer board 12 is mainly made of asbestos fireproof material. The fireproof layer board 12 can increase the fireproof effect of the heat insulation board 10 and improve the fireproof effect of the main body 1.
[0028] Working principle: First, the main body 1 is hinged and closed to the door frame 2. The main body 1 blocks and prevents the fire. When the fire temperature is too high, it burns the baffle 8. After the baffle 8 is damaged, the elastic frame 5 in the flame-retardant cavity 3 squeezes and pushes the sandbag 7 on one side of the movable plate 6. At the same time, the spring piece 14 squeezes and pushes the elastic frame 5. Then the sandbag 7 is burned and damaged by the fire, so that the sand in the sandbag 7 extinguishes and retards the fire on one side of the fire door. At the same time, the fireproof plate 9 blocks and prevents the fire. At this time, the heat insulation plate 10 blocks the heat, and the flame-retardant plate 11 retards the fire again, thus realizing the fire extinguishing and multiple flame retardant functions of the main body 1.
[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fire door with flame-retardant function, comprising a fire door body (1) and a door frame (2) fitted onto the outside of the body (1), characterized in that: A flame-retardant cavity (3) is provided at the center of the inner side of the main body (1). Fire extinguishing cavities (4) are provided on the inner side of the main body (1) and on both sides of the flame-retardant cavity (3). Fire extinguishing components for flame retardant fire extinguishing are installed inside the fire extinguishing cavity (4). Fireproof components for flame retardant fire prevention are installed inside the flame-retardant cavity (3). The door frame (2) is hinged to the main body (1).
2. A fire door with flame-retardant function according to claim 1, characterized in that: The fire extinguishing device includes an elastic frame (5) installed on the inner wall of the flame-retardant cavity (3). A movable plate (6) is fixedly connected to one side of the elastic frame (5). A sandbag (7) for fire extinguishing is placed on one side of the movable plate (6) and inside the flame-retardant cavity (3). A baffle (8) is embedded on the other side of the flame-retardant cavity (3). The baffle (8) is mainly made of aluminum alloy. The baffle (8) is installed and fixed to the body (1) by bolts.
3. A fire door with flame-retardant function according to claim 2, characterized in that: The fireproof component includes a fireproof plate (9) installed inside the flame-retardant cavity (3). Heat insulation plates (10) are connected to both sides of the fireproof plate (9). A flame-retardant plate (11) is fixedly connected to one side of the heat insulation plate (10). The flame-retardant plate (11) is mainly made of calcium silicate board material.
4. A fire door with flame-retardant function according to claim 3, characterized in that: A fireproof layer (12) is embedded on the inner side of the heat insulation board (10).
5. A fire door with flame-retardant function according to claim 3, characterized in that: The flame-retardant plate (11) has a plurality of fireproof parts (13) evenly arranged on one side.
6. A fire door with flame-retardant function according to claim 2, characterized in that: The elastic frame (5) is fitted with a spring piece (14) on its inner side.
7. A fire door with flame-retardant function according to claim 1, characterized in that: A sealing portion (15) extends from the outer edge of the body (1).