Regional fireproof isolation device
By designing a regional fire isolation device, which uses traction rods and columns to deploy fire blankets to form isolation zones, the problem of flame spread during thermal runaway of lithium battery packs is solved, reducing the risk of fire. The device is simple in structure and easy to operate.
Patent Information
- Application Number
- CN202422858263.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-22
AI Technical Summary
When a lithium battery pack in an electric vehicle experiences thermal runaway, flames or flying debris can easily spread to surrounding vehicles, causing large-scale fire accidents. Existing fire extinguishers and fire hydrants are not very effective.
Design a regional fire isolation device, including a box, a retractable assembly, a traction rod, and multiple uprights. The traction rod drives the fire blanket to unfold and surround the uprights to form an isolation area, preventing the spread of flames.
It effectively reduces the risk of flames spreading to surrounding vehicles when lithium battery packs experience thermal runaway, thus reducing the occurrence of major fire accidents. It has a simple structure and is easy to operate.
Smart Images

Figure CN223542349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parking lot fire protection equipment technology, and in particular to a regional fire isolation device. Background Technology
[0002] Electric vehicles typically use rechargeable lithium-ion battery packs as their onboard power source. These battery packs generate heat during charging, and are highly susceptible to thermal runaway when malfunctions occur due to external physical factors or internal circuitry issues during charging and discharging. The danger of battery thermal runaway is immense. Because parking lots and similar spaces often have high vehicle density and lack fire-resistant barriers, when an electric vehicle catches fire, fire extinguishers and fire hydrants are less effective at extinguishing lithium-ion battery fires. The flames or debris generated during thermal runaway can easily ignite nearby vehicles, leading to large-scale vehicle fires and other accidents, causing significant safety hazards and economic losses. Utility Model Content
[0003] The purpose of this invention is to provide a regional fire isolation device that can isolate adjacent vehicles, prevent flames or flying debris generated during thermal runaway of lithium battery packs from spreading rapidly to surrounding vehicles, and reduce the risk of major fire accidents.
[0004] To achieve the above objectives, this utility model provides a regional fireproof isolation device with a first direction, a second direction and a third direction intersecting in pairs, including a housing, a winding assembly, a traction rod, multiple columns and a fireproof blanket;
[0005] The box body is provided with a receiving cavity;
[0006] The winding assembly is disposed within the receiving cavity, and the axial direction of the winding assembly is parallel to the third direction;
[0007] The axial direction of the traction rod is parallel to the third direction;
[0008] One end of the fire blanket is connected to the winding assembly, and the other end is connected to the traction rod; the winding assembly cooperates with the traction rod to allow the fire blanket to unfold or retract.
[0009] The axial direction of each of the multiple columns is parallel to the third direction, and the multiple columns are spaced apart in the first direction and the second direction;
[0010] When the traction rod is pulled out of the receiving cavity, the traction rod causes the fireproof blanket to unfold and surround the outside of the multiple columns to form an isolation area.
[0011] In a further embodiment, the winding assembly includes a roller and two mounting seats. The axial direction of the roller is parallel to the third direction. Both ends of the roller are rotatably connected to the mounting seats. The sidewall of the roller is connected to one end of the fireproof blanket. The two mounting seats are disposed in the receiving cavity.
[0012] In a further embodiment, the winding assembly further includes two mounting plates, which are disposed in the receiving cavity and spaced apart in the third direction. The mounting plates are provided with strip-shaped countersunk holes spaced apart in the first direction, and the long side of the strip-shaped countersunk holes extends along the third direction. The mounting base is provided with mounting holes corresponding to the strip-shaped countersunk holes.
[0013] In a further embodiment, the system further includes a support column and a cover plate. The support column extends along the third direction, the housing is mounted on the support column, the housing is rotatably connected to the cover plate, the rotation axis of the cover plate is parallel to the third direction, and the side walls of the support column, the housing, and the cover plate cooperate to form the receiving cavity.
[0014] In a further embodiment, the inner walls of the box body at both ends in the third direction are provided with arc-shaped grooves, and the outer walls of the cover plate at both ends in the third direction are provided with guide posts corresponding to the arc-shaped grooves. The guide posts are located in the arc-shaped grooves and can slide along the extension path of the arc-shaped grooves.
[0015] In a further embodiment, the support column is provided with a locking element, and the cover plate is provided with a locking slot corresponding to the locking element.
[0016] In a further embodiment, the locking member includes a lock body and a pin. The end of the lock body away from the support post is provided with a connecting part corresponding to the lock opening. The connecting part has a limiting hole in the third direction, and the pin is inserted into the limiting hole.
[0017] In a further embodiment, the outer surface of the housing is provided with a plurality of snap-fit blocks, the snap-fit blocks are spaced apart in the third direction, the snap-fit blocks are provided with snap-fit grooves corresponding to the traction rod, and the traction rod is provided with a snap-fit boss at the top of the third direction, the outer diameter of the snap-fit boss being larger than the inner diameter of the snap-fit groove.
[0018] In a further embodiment, the snap-fit block has a limiting boss at the top of the third-party upward direction, the outer wall of the traction rod is disposed in the snap-fit groove, and the outer peripheral side wall of the snap-fit boss abuts against the outer wall of the limiting boss.
[0019] In a further embodiment, the number of columns is at least three.
[0020] Compared with the prior art, the regional fire isolation device of this utility model has the following advantages: the receiving cavity can be used to place the retracting assembly, the tow bar, and the retracted fire blanket. Multiple columns are spaced apart in the first and second directions. One end of the fire blanket is connected to the retracting assembly, and the other end is connected to the tow bar. When it is necessary to isolate a vehicle from fire, the tow bar is pulled out of the receiving cavity. The tow bar drives the fire blanket to unfold and surround the outside of the multiple columns to form an isolation area, so that the burning vehicle is located in the isolation area, preventing the flames or splashes generated by the thermal runaway of the lithium battery pack from spreading rapidly to surrounding vehicles, reducing the risk of major fire accidents. The overall structure is simple and easy to operate. Attached Figure Description
[0021] Figure 1 This is a reference diagram showing the unfolded state of the regional fireproof isolation device according to an embodiment of this utility model;
[0022] Figure 2 This is a reference diagram of the retracted state of the regional fireproof isolation device according to an embodiment of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the box of the regional fireproof isolation device according to an embodiment of this utility model;
[0024] Figure 4 This is another perspective reference diagram of the deployed state of the regional fireproof isolation device according to an embodiment of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the winding assembly of the regional fireproof isolation device according to an embodiment of this utility model;
[0026] Figure 6 This is a schematic diagram showing the connection between the housing and the cover plate of the regional fireproof isolation device according to an embodiment of this utility model;
[0027] Figure 7 This is a schematic diagram of the structure of the locking component of the regional fireproof isolation device according to an embodiment of this utility model;
[0028] Figure 8 This is a schematic diagram of the structure of the snap-fit block of the regional fireproof isolation device according to an embodiment of this utility model.
[0029] In the picture:
[0030] 1. Box body; 11. Receiving cavity; 12. Arc-shaped groove;
[0031] 2. Rewind assembly; 21. Roller; 22. Mounting base; 221. Mounting hole; 23. Mounting plate; 231. Countersunk hole;
[0032] 3. Towing rod; 31. Snap-fit boss;
[0033] 4. Columns;
[0034] 5. Fire blanket;
[0035] 6. Support columns;
[0036] 7. Cover plate; 71. Guide post; 72. Locking edge;
[0037] 8. Locking component; 81. Lock body; 811. Connecting part; 82. Bolt
[0038] 9. Snap-fit block; 91. Snap-fit slot; 92. Limiting boss; X, first direction; Y, second direction; Z, third direction. Detailed Implementation
[0039] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0040] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0041] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0042] like Figures 1 to 8As shown, this utility model provides a regional fire isolation device with intersecting first direction X, second direction Y and third direction Z. It is mainly used to be installed in parking lots to isolate adjacent vehicles. It includes a box 1, a retractable assembly 2, a tow bar 3, multiple columns 4 and a fireproof blanket 5. The housing 1 has a cavity 11 for storing the retractable assembly 2, the tow bar 3, and the fire blanket 5. The retractable assembly 2 is located within the cavity 11, and its axis is parallel to the third direction Z. The axis of the tow bar 3 is also parallel to the third direction Z. One end of the fire blanket 5 is connected to the retractable assembly 2, and the other end is connected to the tow bar 3. The retractable assembly 2 and the tow bar 3 work together to unfold or retract the fire blanket 5. Multiple uprights 4 are all parallel to the third direction Z and are spaced apart in the first direction X and the second direction Y. To facilitate the isolation of a burning vehicle, the tow bar 3 is pulled out of the cavity 11, causing the fire blanket 5 to unfold and wrap around the outside of the multiple uprights 4 to form an isolation area a. (See reference...) Figure 1 The vehicle on fire was located in isolation zone a to prevent the flames or flying debris generated by the thermal runaway of the lithium battery pack from spreading rapidly to surrounding vehicles and to reduce the risk of a major fire accident.
[0043] In some embodiments, to simplify the structure of the winding assembly 2 and reduce assembly difficulty, refer to Figure 1 , Figure 5 The winding assembly 2 includes a roller 21 and two mounting seats 22. The axial direction of the roller 21 is parallel to the third direction Z. Both ends of the roller 21 are rotatably connected to the mounting seats 22. The side wall of the roller 21 is connected to one end of the fire blanket 5. The two mounting seats 22 are located in the receiving cavity 11. When the roller 21 is rotated, the fire blanket 5 can be unfolded or rolled up.
[0044] In some embodiments, to facilitate adjustment of the installation position of the fire blanket 5 on the third party's Z, see [reference]. Figure 5 The winding assembly 2 also includes two mounting plates 23, wherein the two mounting plates 23 are disposed in the receiving cavity 11 and are spaced apart in the third direction Z. The mounting plates 23 are provided with strip-shaped countersunk holes spaced apart in the first direction X. The long side of the strip-shaped countersunk holes extends along the third direction Z. The mounting base 22 is provided with mounting holes 221 corresponding to the strip-shaped countersunk holes 231. The mounting base 22 and the mounting plates 23 can be connected by screws. The threaded section of the screw passes through the strip-shaped countersunk holes 231 and is threadedly connected to the mounting holes 221.
[0045] In some embodiments, to facilitate the installation of the enclosure 1 and, after installation, to facilitate the storage of the fire blanket 5, see [reference needed]. Figures 1 to 4The regional fireproof isolation device of this application also includes a support column 6 and a cover plate 7. The support column 6 extends along the third direction Z. The housing 1 is installed on the support column 6, and the housing 1 is rotatably connected to the cover plate 7. The rotation axis of the cover plate 7 is parallel to the third direction Z. (See reference...) Figure 2 The side walls of the support column 6, the box body 1, and the cover plate 7 cooperate to form a receiving cavity 11. After the fire blanket 5 is rolled up, the traction rod 3, the fire blanket 5, and the winding assembly 2 are all located in the receiving cavity 11 for easy storage. In some other embodiments, a base (not shown in the figure) can also be provided at the bottom of the box body 1, which can be placed directly on the ground. The installation structure of the box body 1 can be adjusted according to actual needs.
[0046] In some embodiments, to simplify the connection structure between the housing 1 and the cover plate 7 and reduce processing costs, refer to Figure 5 , Figure 6 The inner walls of the box body 1 at both ends in the third direction Z are provided with arc-shaped grooves 12. At the same time, the outer walls of the cover plate 7 at both ends in the third direction Z are provided with guide posts 71 corresponding to the arc-shaped grooves 12. The guide posts 71 are located in the arc-shaped grooves 12 and can slide along the extension path of the arc-shaped grooves 12, thereby realizing the opening and closing of the receiving cavity 11, which facilitates the taking and putting away of the fire blanket 5.
[0047] In some embodiments, after the cover plate 7 closes the receiving cavity 11, in order to facilitate fixing the position of the cover plate 7 and prevent the traction rod 3 from sliding out of the receiving cavity 11, refer to... Figure 1 , Figure 5 , Figure 7 The support column 6 is equipped with a locking element 8, and the cover plate 7 has a locking slot 72 corresponding to the locking element 8. When the cover plate 7 rotates to close the receiving cavity 11, the position of the cover plate 7 is fixed by the cooperation of the locking element 8 and the locking slot 72. In this embodiment, to simplify the structure of the locking element 8, please refer to... Figure 7 The locking component 8 includes a lock body 81 and a pin 82. The lock body 81 has a connecting part 811 corresponding to the lock opening 72 at one end away from the support column 6. The connecting part 811 has a limiting hole (not shown in the figure) in the third direction Z. The pin 82 is inserted into the limiting hole. The cover plate 7 can be quickly fixed by inserting and pulling the pin 82 into the limiting hole. The overall structure is simple.
[0048] In some embodiments, after the fire blanket 5 is unfolded by the traction rod 3, in order to fix the position of the traction rod 3 and thus ensure the stability of the isolation area a, refer to... Figure 4 , Figure 8Multiple locking blocks 9 are provided on the outside of the housing 1. These locking blocks 9 are spaced apart in the third direction Z. Each locking block 9 has a locking groove 91 corresponding to the traction rod 3. The top of the traction rod 3 in the third direction Z has a locking boss 31, the outer diameter of which is larger than the inner diameter of the locking groove 91. In this embodiment, the locking groove 91 is U-shaped to facilitate the installation of the traction rod 3. Due to the presence of the locking boss 31, the traction rod 3 cannot move in the third direction Z, preventing it from detaching from the locking groove 91, thus ensuring overall structural stability. Furthermore, since the fire blanket 5 is in the unfolded state, to avoid the traction rod 3 detaching from the locking groove 91 due to a small external force when the fire blanket 5 is unfolded, refer to... Figure 8 The locking block 9 has a limiting boss 92 at its top in the third direction Z. The outer wall of the traction rod 3 is located in the locking groove 91, and the outer peripheral side wall of the locking boss 31 abuts against the outer wall of the limiting boss 92. The limiting boss 92 limits the traction rod 3 in the second direction Y. When it is necessary to roll up the fireproof blanket 5, the traction rod 3 can be pulled out from the locking groove 91, making disassembly and assembly simple. In this embodiment, there are two limiting bosses 92, which are spaced apart in the first direction X.
[0049] In some embodiments, since the isolation area a is located within the parking lot, in order to ensure that the size of the isolation area a corresponds to the size of the parking space, the number of columns 4 is at least three. (See [reference]) Figure 1 This system can form a rectangular isolation area a, or it can be applied to other fire protection scenarios according to actual fire protection needs. The spacing and number of the columns 4 can be adjusted to adapt the shape of the isolation area a. The bottom of the columns 4 is equipped with a mounting flange, which can be fixed to the ground with expansion bolts to ensure the structural stability of the isolation area a.
[0050] In a specific embodiment, the usage process of the regional fire blanket 5 isolation device provided by this utility model is as follows: when it is necessary to set up an isolation area a, the box 1 and the column 4 are arranged... Figure 1 The items are arranged at intervals on the site as shown. Then, the pin 82 is pulled out, the cover plate 7 is rotated to open the receiving cavity 11, and the traction rod 3 is pulled out of the receiving cavity 11. The traction rod 3 causes the fire blanket 5 to unfold and surround the outside of the multiple columns 4, and the traction rod 3 is locked in the locking groove 91 to form an isolation area a.
[0051] In summary, the present invention provides a regional fire isolation device. The receiving cavity 11 can be used to place the retractable assembly 2, the tow bar 3, and the retracted fire blanket 5. Multiple columns 4 are spaced apart in the first direction X and the second direction Y. One end of the fire blanket 5 is connected to the retractable assembly 2, and the other end is connected to the tow bar 3. When it is necessary to isolate a vehicle from fire, the tow bar 3 is pulled out of the receiving cavity 11. The tow bar 3 drives the fire blanket 5 to unfold and surround the outside of the multiple columns 4 to form an isolation area a. This places the burning vehicle within the isolation area a, preventing the flames or splashes generated by the thermal runaway of the lithium battery pack from spreading rapidly to surrounding vehicles and reducing the risk of a major fire accident. The overall structure is simple and easy to operate.
[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A regional fire isolation device, having intersecting first direction (X), second direction (Y), and third direction (Z), characterized in that: Includes a housing (1), a winding assembly (2), a traction rod (3), multiple uprights (4), and a fire blanket (5); The box (1) is provided with a receiving cavity (11); The winding assembly (2) is disposed in the receiving cavity (11), and the length direction of the winding assembly (2) is parallel to the third direction (Z); The axial direction of the traction rod (3) is parallel to the third direction (Z); One end of the fire blanket (5) is connected to the winding assembly (2), and the other end is connected to the traction rod (3). The winding assembly (2) and the traction rod (3) cooperate to make the fire blanket (5) unfold or roll up. The axial direction of the multiple columns (4) is parallel to the third direction (Z), and the multiple columns (4) are spaced apart in the first direction (X) and the second direction (Y); When the traction rod (3) is pulled out of the receiving cavity (11), the traction rod (3) causes the fireproof blanket (5) to unfold and surround the outside of the multiple columns (4) to form an isolation area (a).
2. The regional fire isolation device as described in claim 1, characterized in that: The winding assembly (2) includes a roller (21) and two mounting seats (22). The axial direction of the roller (21) is parallel to the third direction (Z). Both ends of the roller (21) are rotatably connected to the mounting seats (22). The side wall of the roller (21) is connected to one end of the fireproof blanket (5). The two mounting seats (22) are located in the receiving cavity (11).
3. The regional fire isolation device as described in claim 2, characterized in that: The winding assembly (2) further includes two mounting plates (23), which are disposed in the receiving cavity (11) and spaced apart in the third direction (Z). The mounting plates (23) have strip-shaped countersunk holes (231) spaced apart in the first direction (X). The long side of the strip-shaped countersunk holes (231) extends along the third direction (Z). The mounting base (22) has mounting holes (221) corresponding to the strip-shaped countersunk holes (231).
4. The regional fire isolation device as described in claim 1, characterized in that: It also includes a support column (6) and a cover plate (7). The support column (6) extends along the third direction (Z). The box body (1) is installed on the support column (6). The box body (1) is rotatably connected to the cover plate (7). The rotation axis of the cover plate (7) is parallel to the third direction (Z). The side walls of the support column (6), the box body (1), and the cover plate (7) cooperate to form the receiving cavity (11).
5. The regional fire isolation device as described in claim 4, characterized in that: The box body (1) has arc-shaped grooves (12) on the inner walls of both ends in the third direction (Z), and the cover plate (7) has guide posts (71) corresponding to the arc-shaped grooves (12) on the outer walls of both ends in the third direction (Z). The guide posts (71) are located in the arc-shaped grooves (12) and can slide along the extension path of the arc-shaped grooves (12).
6. The regional fire isolation device as described in claim 5, characterized in that: The support column (6) is provided with a locking element (8), and the cover plate (7) is provided with a locking slot (72) corresponding to the locking element (8).
7. The regional fire isolation device as described in claim 6, characterized in that: The locking member (8) includes a lock body (81) and a pin (82). The lock body (81) has a connecting part (811) at one end away from the support column (6) that corresponds to the lock opening (72). The connecting part (811) has a limiting hole along the third direction (Z), and the pin (82) is inserted into the limiting hole.
8. The regional fire isolation device as described in claim 1, characterized in that: The housing (1) is provided with a plurality of snap-fit blocks (9) on the outside. The snap-fit blocks (9) are spaced apart on the third direction (Z). The snap-fit blocks (9) are provided with snap-fit grooves (91) corresponding to the traction rod (3). The traction rod (3) is provided with a snap-fit boss (31) at the top of the third direction (Z). The outer diameter of the snap-fit boss (31) is larger than the inner diameter of the snap-fit groove (91).
9. The regional fire isolation device as described in claim 8, characterized in that: The snap-fit block (9) has a limiting boss (92) on the top of the third direction (Z), the outer wall of the traction rod (3) is located in the snap-fit groove (91), and the outer peripheral side wall of the snap-fit boss (31) abuts against the outer wall of the limiting boss (92).
10. The regional fire isolation device as described in claim 1, characterized in that: The number of columns (4) is at least three.