A fire-fighting live-fire interior attack training box
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUCHENG COUNTY FIRE RESCUE BRIGADE (PUCHENG COUNTY FIRE RESCUE BUREAU)
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional fixed live fire training facilities have high construction and maintenance costs, cannot be combined with newly built training facilities, and have low utilization rates.
It adopts a container modification design, with an inner lining of channel steel frame and rectangular tube frame, filled with rock wool, covered with weathering steel plate, and the bottom is laid with patterned steel plate and refractory bricks. The interior is coated with matte black high-temperature light-absorbing paint, and fuel is carried by chains and counterweights. The protection level is divided according to the distance from the fire source.
It realizes a low-cost, easy-to-maintain mobile real fire training box that can simulate real fire scenarios, improve the realism of training scenarios, and can be used in combination with other facilities to improve economy and utilization.
Smart Images

Figure CN224437052U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fire training equipment, specifically referring to a fire-fighting real fire interior attack training box. Background Technology
[0002] Live-fire training plays a crucial role in fire drills, simulating real fire scenarios to help firefighters improve their practical skills, such as fire reconnaissance, firefighting and search and rescue, and teamwork. However, traditional fixed live-fire training facilities are not only costly to build and maintain, but also, due to their immobility, cannot be used in conjunction with newly built training facilities, resulting in limited facility utilization and poor economic efficiency. Summary of the Invention
[0003] The problem to be solved by this utility model is to design a fire-fighting real fire attack training box that can simulate real fire scenarios and can be used in combination with other training facilities, with low construction and maintenance costs.
[0004] This utility model is implemented as follows:
[0005] A fire-fighting live-fire interior attack training box includes: a container, the bottom of which is provided with a protective bottom plate, and a heat-insulated observation plate is provided on the protective bottom plate. The heat-insulated observation plate divides the interior of the container into a combustion zone and a non-combustion zone with its plane as the boundary.
[0006] The sidewalls, endwalls and top of the combustion zone are provided with a first frame, the spaces between the first frame are filled with a first inner protective layer, and the surfaces of the first frame and the first inner protective layer are covered with a first outer protective layer.
[0007] The sidewalls, endwalls and top of the non-combustion zone are provided with a second frame, the space between the second frame is filled with a second inner protective layer, and the surfaces of the second frame and the second inner protective layer are covered with a second outer protective layer.
[0008] Furthermore, the protective base plate is a patterned steel plate with a thickness of ≥5mm, and refractory bricks with a thickness of ≥40mm are provided above the protective base plate in the combustion zone.
[0009] Furthermore, several chains carrying combustibles are provided above the combustion zone, and counterweights are connected to both ends of the chains to adjust the tension of the chains.
[0010] Furthermore, the first frame is Q235-10# channel steel, the frame spacing is 600-800mm, the first inner protective layer is aluminum silicate rock wool with a thickness ≥100mm, and the first outer protective layer is SPA-H weathering steel plate with a thickness ≥6mm.
[0011] The second frame is a Q235 rectangular tube with a specification of 50mm×30mm×4mm and a frame spacing of 600-800mm. The second inner protective layer is aluminum silicate rock wool with a thickness of ≥50mm. The first outer protective layer is SPA-H weathering steel plate with a thickness of ≥3mm.
[0012] Furthermore, the interior of the container is coated with matte black high-temperature light-absorbing paint to absorb firelight and reduce the brightness inside the container, with a paint thickness of ≥100um.
[0013] Furthermore, a first door is provided on the end wall of the non-combustion zone, and a second door is provided on the side wall.
[0014] Furthermore, the heat-insulating observation panel has a U-shaped structure.
[0015] The advantages of this utility model are:
[0016] Because the box is lined with a channel steel frame and a rectangular tube frame, filled with rock wool between the frames, covered with weathering steel plate on the surface of the frame, and laid with patterned steel plate and refractory bricks at the bottom, the box has high structural strength, strong heat insulation and heat resistance, is not easy to deform, and has a long service life.
[0017] Because the inner surface is coated with matte black high-temperature light-absorbing paint, it can effectively absorb firelight and reduce the brightness inside the box, thus simulating the dark and smoky environment of a fire scene and improving the realism of the scene.
[0018] Because the fuel is carried by a combination of chains and counterweights, the fuel capacity is increased while avoiding the problem of deformation of the rigid support structure caused by fuel combustion. In addition, the tension of the chains is adjustable, which can ensure that the fuel is kept horizontal and does not fall.
[0019] Because it is made from a converted shipping container and has different protection levels based on its distance from the fire source, it has low construction costs, is easy to maintain, is mobile, can be used in combination with other training facilities, and is highly economical. Attached Figure Description
[0020] The present invention will now be further described with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a schematic diagram of the six sides of an existing shipping container.
[0022] Figure 2 This is a structural schematic diagram from a first perspective of the first embodiment of this utility model.
[0023] Figure 3 This is a structural schematic diagram of the first embodiment of the present invention from a first perspective (U-shaped heat-insulating observation plate).
[0024] Figure 4This is a structural schematic diagram of the first embodiment of the present invention from a second perspective (showing structural details, but excluding the first and second outer protective layers).
[0025] Figure 5 This is a structural schematic diagram of the second embodiment of the present invention.
[0026] Figure label:
[0027] 1-Insulated observation panel, 2-Combustion zone, 21-Refractory brick, 22-First frame, 23-First inner protective layer, 24-First outer protective layer, 25-Chain, 26-Counterweight, 3-Non-combustion zone, 31-First door, 32-Second door, 33-Second frame, 34-Second inner protective layer, 35-Second outer protective layer, 4-Baffle. Detailed Implementation
[0028] The following is combined with Figures 1 to 5 The embodiments of this utility model will be described in detail below.
[0029] Standard shipping containers are characterized by their robust structure and ease of transport. If converted into live-fire training containers, they can be easily moved to different training sites and combined with other training facilities to meet diverse training needs. However, their fire resistance is weak, and the internal structure may deform or even collapse after prolonged burning. Therefore, it is necessary to strengthen their structural strength and fire resistance during the conversion process.
[0030] like Figure 1 As shown, the six sides of an existing container are the front end door, the rear end wall, the left and right side walls, the top of the container, and the bottom of the container. Each side has a corresponding name for easy technical explanation later.
[0031] Example 1
[0032] like Figures 2 to 4 As shown, this utility model's fire-fighting real-fire interior attack training box is based on a standard shipping container. The original bamboo and wood floorboard at the bottom of the container is removed and replaced with a protective floorboard (not shown). The protective floorboard uses a 5mm thick checkered steel plate. The original end doors of the container are removed and replaced with end walls. A heat-insulated observation panel 1 is provided on the side walls inside the container. The interior of the container is divided into a combustion zone 2 and a non-combustion zone 3, with the plane of the heat-insulated observation panel 1 as the boundary. A first door 31 and a second door 32 are respectively provided on the end walls and side walls of the non-combustion zone 3. Figure 3 The area of the heat insulation observation panel 1 can be further increased, such as by designing it as a U-shaped structure to partially separate the combustion zone 2 from the non-combustion zone 3, so as to partially isolate the heat radiation in the combustion zone 2, avoid overheating of the non-combustion zone 3, and reduce the heat insulation load at the junction of the combustion zone 2 and the non-combustion zone 3.
[0033] The bottom protective plate of combustion zone 2 is covered with 40mm thick refractory bricks 21. The side walls, end walls, and top of combustion zone 2 are equipped with a first frame 22, which is made of Q235-10# channel steel with a spacing of 600-800mm. The spaces between the first frames 22 are filled with a first inner protective layer 23, which is 100mm thick aluminum silicate rock wool. The surfaces of the first frames 22 and the first inner protective layer 23 are covered with a first outer protective layer 24, which is 6mm thick SPA-H weathering steel plate. The heat-insulated observation plate 1 also has an internal channel steel frame, with the gaps between the frames filled with aluminum silicate rock wool, and the surface of the frame and rock wool covered with weathering steel plate.
[0034] The side walls, end walls, and top of the non-combustion zone 3 are equipped with a second frame 33. The second frame 33 is made of Q235 rectangular tube with specifications of 50mm×30mm×4mm and a frame spacing of 600-800mm. The space between the second frames is filled with a second inner protective layer 34, which is 50mm thick aluminum silicate rock wool. The surfaces of the second frame 33 and the second inner protective layer 34 are covered with a second outer protective layer 35, which is 3mm thick SPA-H weathering steel plate. Since the non-combustion zone is far from the fire source and the temperature is lower than that of the combustion zone, the protection level can be appropriately reduced to reduce the modification cost while ensuring the structural strength.
[0035] After modification, the internal temperature resistance of the chamber can reach up to 1000℃ and last for more than 30 minutes, which can meet the basic needs of live fire training.
[0036] The interior of the enclosure is also coated with a matte black high-temperature light-absorbing paint to absorb firelight, reduce the brightness inside the enclosure, and restore the dark environment of a fire scene with dense smoke. The preferred paint thickness is 100µm. Due to the significantly improved heat insulation of the enclosure, conventional mixed paint can be used for the exterior coating, eliminating the need for more expensive high-temperature paint.
[0037] Example 2
[0038] Combustion zone 2 uses square timber or planks to generate smoke and heat. By elevating some of the timber, the space in combustion zone 3 can be fully utilized to increase fuel capacity. However, if a rigid structure, such as steel bars, is used to support the fuel directly, the rigid structure is prone to deformation and bending during combustion due to the high temperature and weight of the fuel. This will not only affect its service life but may also increase safety hazards during training.
[0039] Therefore, as Figure 5As shown, based on Embodiment 1, several chains 25, preferably five, are installed parallel to each other on the side wall of the combustion zone to hold the combustible material. Each chain 25 has a counterweight 26 connected to both ends. The weight of a single counterweight 26 is preferably 7.5–10 kg. The counterweights 26 can be detached from the chains 25. The chains 25 have good flexibility and load-bearing capacity, maintaining stability under the combined effects of high temperature and the weight of the combustible material, avoiding the problem of rigid structure deformation. Furthermore, the tension of the chains 25 can be changed by adjusting the weight of the counterweights 26, thus adapting to fuels of different shapes and weights. When needed, the chains 25 can also be removed at any time, freeing up space for training in other areas.
[0040] When the container to be modified is long, the original end door of the container can be retained, and a partition 4 can be installed inside the container. The partition 4 is equivalent to the end wall modified after removing the original end door in Example 1, thereby dividing up additional space for training of other projects and improving the utilization rate of training facilities.
[0041] During live-fire training, square timber is leaned against the end and side walls of the combustion zone, and particleboard is mounted on chains for burning. The square timber is 50mm × 100mm in size and 800–1000mm in length, while the particleboard is 1200mm × 2400mm × 10mm in size. After ignition, firefighters can observe the fire from behind the heat-insulated observation panel 1 to see if the fire meets the training requirements. If a large amount of smoke is needed, a water gun is used to spray an appropriate amount of water mist to wet the wood, causing incomplete combustion and producing black smoke. Fixed water pipes or sprayers can also be installed inside the box to spray fuel to produce smoke, cool, and extinguish the fire. Appropriate drainage structures or equipment can be configured, such as a slightly inclined floor for easy drainage or a drainage ditch. This utility model of a live-fire training box can also be combined with other fire training facilities to provide a smoke and heat environment for other fire training facilities, such as by adding ventilation windows, doors, or flues to diffuse smoke and heat.
[0042] Because the box body is lined with channel steel and rectangular tube frame, filled with rock wool between the frames, covered with weathering steel plate on the surface of the frame and rock wool, and laid with patterned steel plate and refractory bricks at the bottom, the box body has high structural strength, strong heat insulation and heat resistance, is not easy to deform and has a long service life.
[0043] Because the inner surface is coated with matte black high-temperature light-absorbing paint, it can effectively absorb firelight and reduce the brightness inside the box, thus simulating the dark and smoky environment of a fire scene and improving the realism of the scene.
[0044] Because the fuel is carried by a combination of chains and counterweights, the fuel capacity is increased while avoiding the problem of deformation of the rigid support structure caused by fuel combustion. In addition, the tension of the chains is adjustable, which can ensure that the fuel is kept horizontal and does not fall.
[0045] Because it is made from a converted shipping container and has different protection levels based on its distance from the fire source, it has low construction costs, is easy to maintain, is mobile, can be used in combination with other training facilities, and is highly economical.
[0046] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A fire-fighting live-fire interior attack training box, characterized in that: include: The container has a protective bottom plate at the bottom, and a heat-insulated observation plate on the protective bottom plate. The heat-insulated observation plate divides the interior of the container into a combustion zone and a non-combustion zone with its plane as the boundary. The sidewalls, endwalls and top of the combustion zone are provided with a first frame, the spaces between the first frame are filled with a first inner protective layer, and the surfaces of the first frame and the first inner protective layer are covered with a first outer protective layer. The sidewalls, endwalls and top of the non-combustion zone are provided with a second frame, the space between the second frame is filled with a second inner protective layer, and the surfaces of the second frame and the second inner protective layer are covered with a second outer protective layer.
2. The fire-fighting live-fire interior attack training box as described in claim 1, characterized in that: The protective base plate is a patterned steel plate with a thickness of ≥5mm, and refractory bricks with a thickness of ≥40mm are provided on the protective base plate in the combustion zone.
3. The fire-fighting live-fire interior attack training box as described in claim 2, characterized in that: Several chains carrying burning materials are provided above the combustion zone, and counterweights are connected to both ends of the chains to adjust the tension of the chains.
4. The fire-fighting live-fire interior attack training box as described in claim 1, characterized in that: The first frame is Q235-10# channel steel, with a frame spacing of 600-800mm. The first inner protective layer is aluminum silicate rock wool with a thickness of ≥100mm. The first outer protective layer is SPA-H weathering steel plate with a thickness of ≥6mm. The second frame is a Q235 rectangular tube with a specification of 50mm×30mm×4mm and a frame spacing of 600-800mm. The second inner protective layer is aluminum silicate rock wool with a thickness of ≥50mm. The first outer protective layer is SPA-H weathering steel plate with a thickness of ≥3mm.
5. A fire-fighting live-fire interior attack training box as described in claim 4, characterized in that: The interior of the container is coated with matte black high-temperature light-absorbing paint to absorb firelight and reduce the brightness inside the container. The paint thickness is ≥100um.
6. The fire-fighting live-fire interior attack training box as described in claim 1, characterized in that: The non-combustion zone has a first door on its end wall and a second door on its side wall.
7. The fire-fighting live-fire interior attack training box as described in claim 1, characterized in that: The heat-insulated observation panel has a U-shaped structure.