Fire door for a container
Patent Information
- Application Number
- CN202522584868.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-12-05
AI Technical Summary
[0003]当在集装箱内发生火灾时，这种防火门体现出以下缺陷：由波纹钢板制成的门扇的整体刚度小，并且填装在其内的保温材料还起到了助燃作用，从而造成门扇在高温下迅速软化变形，导致门扇与门框之间的缝隙快速变大，进而导致集装箱内的火焰和烟气穿过该缝隙蔓延到外部，而将其相邻的集装箱引燃
I、当在集装箱内发生火灾时，由于大门扇整体呈“日”字形，整体刚性更大，并且大门扇内的环保纤维毯具有阻燃和隔热的作用，从而有效的避免了大门扇在高温下迅速软化变形，也就是说，延长了大门扇的变形时间，起到了很好的防火的目的。
Smart Images
Figure CN224857509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireproof door structures for containers, in particular to a fireproof door for a container. Background Art
[0002] Containers are widely used in the fields of logistics transportation and temporary buildings. A fireproof door is arranged at the port of the container, the fireproof door includes a door frame fixedly arranged at the port of the container, a door leaf hingedly mounted in the door frame via hinges, the door leaf is made of ordinary corrugated steel plate, and the interior of the door leaf is filled with a thermal insulation material (such as polystyrene foam).
[0003] When a fire breaks out inside the container, this type of fireproof door exhibits the following drawbacks: the overall rigidity of the door leaf made of corrugated steel plate is low, and the thermal insulation material filled therein also plays a role in supporting combustion, which causes the door leaf to soften and deform rapidly at high temperature, leading to a rapid increase in the gap between the door leaf and the door frame, and further causing the flame and flue gas inside the container to spread to the outside through the gap and ignite the adjacent container.
[0004] Therefore, there is an urgent need for a fireproof door for a container with good fireproof performance. Contents of the Utility Model
[0005] The purpose of the utility model is to overcome the disadvantages of the prior art and provide a fireproof door for a container.
[0006] The purpose of the utility model is achieved through the following technical solution: a fireproof door for a container, comprising a door frame, a plurality of hinge seats A are fixedly arranged on the left edge of the door frame along the height direction thereof, a large door leaf is arranged inside the door frame, each of the hinge seats A is hinged to the left edge of the large door leaf, through grooves are respectively formed in the large door leaf and located at the left and right ends thereof, a small door leaf is arranged in each of the two through grooves, a plurality of hinge seats B fixedly arranged on the large door leaf are arranged on the left edge of the through groove along the height direction thereof, each of the hinge seats B is fixedly arranged on the left edge of the small door leaf; and an environment-friendly fiber blanket is filled in each of the large door leaf and the small door leaf. A first annular fireproof sealing strip is arranged between the door frame and the large door leaf, the first annular fireproof sealing strip is adhesively fixed on the inner wall of the door frame, a second annular fireproof sealing strip is arranged between the large door leaf and the small door leaf, and the second annular fireproof sealing strip is adhesively fixed on the inner wall of the large door leaf.
[0007] The large door leaf is formed by bending a cold-rolled steel plate, and has a "day"-shaped overall shape.
[0008] The spacing between every two adjacent hinge seats A is equal, and the spacing between every two adjacent hinge seats B is equal.
[0009] The first annular fireproof sealing strip and the second annular fireproof sealing strip are both heat-expandable sealing strips.
[0010] The fire door further includes a container lock and a positioning buckle for locking the large door leaf and the small door leaf.
[0011] The utility model has the following advantages: I. When a fire breaks out inside the container, since the large door leaf is entirely in a "day"-shaped configuration and has greater overall rigidity, and the environment-friendly fiber blanket inside the large door leaf has flame-retardant and heat-insulating effects, rapid softening and deformation of the large door leaf at high temperatures is effectively avoided. That is to say, the deformation time of the large door leaf is prolonged, achieving a good fire protection purpose.
[0012] II. After the large door leaf is deformed by heat, gaps are generated between the large door leaf and the door frame, and between the large door leaf and the small door leaf. At this time, the first annular fireproof sealing strip that expands when heated seals the gap between the large door leaf and the door frame, and the second annular fireproof sealing strip that expands when heated seals the gap between the large door leaf and the small door leaf, thereby effectively preventing the flame and flue gas inside the container from spreading to the outside and igniting the adjacent container. It can be seen that, compared with the fire doors in the prior art, the fire door of the present container can effectively prevent the flame and flue gas inside the container from spreading to the outside, and has the technical feature of better fire protection effect. Brief Description of the Drawings
[0013] Figure 1 is a schematic structural view of the utility model; Figure 2 is Figure 1 a front view thereof; Figure 3 is Figure 2 a B-B cross-sectional view thereof; Figure 4 is Figure 3 a partial enlarged view of part C therein; Figure 5 is Figure 3 a partial enlarged view of part D therein; In the drawings: 1 - Door frame, 2 - Hinge seat A, 3 - Large door leaf, 4 - Small door leaf, 5 - Hinge seat B, 6 - First annular fireproof sealing strip, 7 - Second annular fireproof sealing strip, 8 - Container lock, 9 - Positioning buckle. Detailed Description of the Embodiments
[0014] The utility model is further described below with reference to the accompanying drawings, and the protection scope of the utility model is not limited to the following description: As shown in Figures 1-5As shown in the figure, a fireproof door for a container includes a door frame 1. A plurality of hinge seats A2 are fixedly arranged on the left edge of the door frame 1 along the height direction thereof. A large door leaf 3 is disposed inside the door frame 1, and each of the hinge seats A2 is hinged to the left edge of the large door leaf 3. Through grooves are respectively opened in the large door leaf 3 at the left and right ends thereof, and a small door leaf 4 is disposed in each of the two through grooves. A plurality of hinge seats B5 fixed on the large door leaf 3 are arranged on the left edge of the through groove along the height direction thereof, and each of the hinge seats B5 is fixedly arranged on the left edge of the small door leaf 4. Both the large door leaf 3 and the small door leaf 4 are filled with an environmentally friendly fiber blanket. The large door leaf 3 is formed by bending a cold-rolled steel plate, and has a overall shape of the Chinese character "日".
[0015] A first annular fireproof sealing strip 6 is disposed between the door frame 1 and the large door leaf 3, and the first annular fireproof sealing strip 6 is adhesively fixed on the inner wall of the door frame 1. A second annular fireproof sealing strip 7 is disposed between the large door leaf 3 and the small door leaf 4, and the second annular fireproof sealing strip 7 is adhesively fixed on the inner wall of the large door leaf 3.
[0016] The spacing between every two adjacent hinge seats A2 is equal, and the spacing between every two adjacent hinge seats B5 is equal. Both the first annular fireproof sealing strip 6 and the second annular fireproof sealing strip 7 are heat-expandable sealing strips. The fireproof door further comprises a container lock 8 and a positioning buckle 9 for locking the large door leaf 3 and the small door leaf 4.
[0017] In use, the door frame 1 of the fireproof door is fixedly installed in the port of the container, so that the fireproof door is mounted on the container. At this time, the large door leaf 3 and the small door leaf 4 of the fireproof door close the port of the container.
[0018] When a fire breaks out in the container, since the large door leaf 3 is overall in the shape of the Chinese character "日", the overall rigidity is higher, and the environmentally friendly fiber blanket in the large door leaf 3 has flame-retardant and heat-insulating effects, which effectively prevents the large door leaf 3 from being rapidly softened and deformed at high temperature, that is, prolongs the deformation time of the large door leaf 3, and achieves a good fireproof purpose.
[0019] In addition, after the large door leaf 3 is deformed by heat, gaps are generated between the large door leaf 3 and the door frame 1, and between the large door leaf 3 and the small door leaf 4. At this time, the heat-expanded first annular fireproof sealing strip 6 seals the gap between the large door leaf 3 and the door frame 1, and the heat-expanded second annular fireproof sealing strip 7 seals the gap between the large door leaf 3 and the small door leaf 4, thereby effectively preventing the flame and smoke in the container from spreading to the outside and igniting the adjacent container.
[0020] It can be seen that, compared with the fireproof doors in the prior art, the fireproof door for a container of the present invention can effectively prevent the flame and smoke in the container from spreading to the outside, and has the technical feature of better fireproof effect.
[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A fireproof door for a shipping container, characterized in that: It comprises a door frame (1). A plurality of hinge seats A (2) are fixedly arranged on the left edge of the door frame (1) along the height direction thereof. A large door leaf (3) is arranged inside the door frame (1), and each of the hinge seats A (2) is hinged to the left edge of the large door leaf (3). Through grooves are formed in the large door leaf (3) at the left end and the right end thereof respectively, and a small door leaf (4) is arranged in each of the two through grooves. A plurality of hinge seats B (5) fixedly arranged on the large door leaf (3) are arranged on the left edge of the through groove along the height direction thereof, and each of the hinge seats B (5) is fixedly arranged on the left edge of the small door leaf (4). Environment-friendly fiber blankets are filled in both the large door leaf (3) and the small door leaf (4). A first annular fireproof sealing strip (6) is arranged between the door frame (1) and the large door leaf (3), and the first annular fireproof sealing strip (6) is adhesively fixed on the inner wall of the door frame (1). A second annular fireproof sealing strip (7) is arranged between the large door leaf (3) and the small door leaf (4), and the second annular fireproof sealing strip (7) is adhesively fixed on the inner wall of the large door leaf (3).
2. A fireproof door for a container according to claim 1, characterized in that: The large door leaf (3) is formed by bending a cold-rolled steel plate, and has a overall shape of the Chinese character "日".
3. A fireproof door for a container according to claim 1, characterized in that: The spacing between every two adjacent hinge seats A (2) is equal, and the spacing between every two adjacent hinge seats B (5) is equal.
4. A fireproof door for a container according to claim 1, characterized in that: Both the first annular fireproof sealing strip (6) and the second annular fireproof sealing strip (7) are heat-expandable sealing strips.
5. A fireproof door for a container according to claim 1, characterized in that: This fire door further comprises a container lock (8) and a positioning buckle (9) for locking the large door leaf (3) and the small door leaf (4).