Traction water-cooled fire blanket
By introducing drag-reducing ball bearings and water injection hoses into the fire blanket, combined with rubber suction cups and explosion-proof pressure relief ports, the problems of difficult movement and insufficient cooling of traditional fire blankets have been solved, achieving rapid coverage and efficient cooling, and improving the safety and stability of fire emergency response.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN FIRE SCI & TECH RES INST OF MEM
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional fire blankets cannot cool down quickly enough to prevent thermal runaway of electric vehicle batteries, and they also have high frictional resistance in the presence of water, making them difficult to move and posing a risk of secondary disasters.
A pull-type water-cooled fire blanket was designed, which uses drag-reducing ball bearings to reduce friction, a water injection hose to achieve rapid cooling, and rubber suction cups and explosion-proof pressure relief ports to ensure stable coverage and effective cooling of the fire blanket.
It enables fire blankets to easily cover vehicles in the presence of water, quickly cool the fire source, reduce operational intensity, improve safety during handling, avoid secondary disasters, and ensure the stability and efficient fire control of the fire blankets.
Smart Images
Figure CN224207266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire protection equipment technology, and in particular relates to a pull-type water-cooled fire blanket. Background Technology
[0002] With the rapid development of new energy vehicles, the number of new energy vehicles on the market is increasing year by year. Vehicle fires caused by various reasons occur frequently. The existence of thermal runaway risks in power batteries and the lack of effective means to completely eliminate them bring certain difficulties to firefighting. According to firefighting cases after new energy vehicle fires, traditional fire blankets only have fire-resistant and flame-blocking functions; they cannot quickly cool and suppress the fire. Furthermore, when covering electric vehicles with thermal runaway batteries with fire blankets, the inability to effectively release the gases produced during the runaway may lead to secondary disasters such as flammable gas explosions. In addition, the materials used in traditional fire blankets generate static electricity and significant frictional resistance during the covering process, making it difficult to easily pull the blanket over the vehicle. This is especially true in the presence of water, where the contact friction between the fire blanket and the vehicle is enormous due to the large sliding friction caused by the close contact between the fire blanket and the vehicle body, making it difficult to move the fire blanket. Utility Model Content
[0003] In view of this, the purpose of this utility model is to propose a pull-type water-cooled fire blanket, which is used to conveniently and efficiently pull and move the fire blanket so that it can cover the burning vehicle, and can achieve efficient handling of the burning vehicle through the cooling and suppression effect of a large amount of fire water.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A pull-type water-cooled fire blanket includes: a fire blanket body, drag-reducing ball bearings, and a water injection hose;
[0006] The number of drag-reducing ball bearings is multiple, and the multiple drag-reducing ball bearings are rotatably connected to the middle part of the fire blanket body. The water injection hose is fixed to the fire blanket body. One end of the water injection hose extends into the interior of the fire blanket body, and the other end is located on the exterior of the fire blanket body. The end of the water injection hose located on the exterior of the fire blanket body is connected to a connector. The end of the water injection hose away from the connector is provided with a first drain port.
[0007] Furthermore, the fire blanket body includes a spray section and a water bladder section;
[0008] The water bladder is arranged around the outside of the spray section and is configured as an annular water bladder. The water injection hose passes through the water bladder and extends to the middle part of the spray section. The water injection hose is also provided with a second drain port, which is used to discharge part of the water in the water injection hose into the water bladder.
[0009] Furthermore, the drag-reducing roller is disposed on the spray section, and both the outer surface of the spray section and the outer surface of the water bladder section are provided with a flame-retardant and high-temperature resistant coating.
[0010] Furthermore, it also includes multiple rubber suction cups, which are spaced apart and arranged around the bottom of the water bladder that contacts the ground. The rubber suction cups and the drag-reducing ball bearings are arranged on the same side.
[0011] Furthermore, it also includes a water bladder one-way pressure relief valve, which is disposed on the water bladder and is positioned opposite to the rubber suction cup along the height direction of the water bladder.
[0012] Furthermore, the top of the fire blanket body is also provided with a symmetrically arranged explosion-proof pressure relief port that is sealed by Velcro and can be opened outward in one direction, in order to effectively relieve the pressure of gas accumulation and deflagration in vehicles covered by the fire blanket.
[0013] Furthermore, the fire blanket body also includes a first support member and a second support member. The first support member is arranged around the outside of the spray section and is located between the spray section and the water bladder section. The second support member is arranged around the outside of the water bladder section.
[0014] Furthermore, it also includes a traction rope and a handle, the traction rope being connected to the second support member and the handle being connected to the second support member.
[0015] Furthermore, the fire blanket body also includes a drip hose, one end of which is connected to the first drain outlet and the other end is fixed to the second support member, and the drip hose is provided with multiple drip holes.
[0016] Furthermore, there are multiple drip tubes, which are distributed in a radiating pattern.
[0017] Through the above technical solution, multiple friction-reducing ball bearings set in the middle of the fire blanket body can effectively reduce the friction between the fire blanket and the vehicle body, allowing firefighters to easily pull the fire blanket to cover the burning vehicle even when there is water. This solves the problem of traditional fire blankets being difficult to move due to high frictional resistance. At the same time, the water injection hose allows external water to be quickly injected into the fire blanket through the connector and discharged through the first drain outlet, allowing water to flow along the vehicle body. This achieves continuous cooling of the fire source, suppresses the risk of thermal runaway of the power battery, and enables the fire blanket body to quickly cover the burning vehicle and efficiently control the fire, buying valuable time for fire emergency response, while reducing operational intensity and improving safety. Attached Figure Description
[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0019] Figure 1 This is a bottom view of the fire blanket body and drag-reducing ball bearings provided in an exemplary embodiment of this disclosure;
[0020] Figure 2 This is a top view of the structure of the water-cooled fire blanket provided in an exemplary embodiment of this disclosure;
[0021] Figure 3 This is a side view of the structure of the water-cooled fire blanket provided in an exemplary embodiment of this disclosure;
[0022] Figure 4 This is a schematic diagram of the internal structure of a water-cooled fire blanket provided in an exemplary embodiment of this disclosure;
[0023] Figure 5 This is a schematic diagram of the structure of the drip tube provided in an exemplary embodiment of this disclosure.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Fire blanket body; 101. Sprayer section; 102. Water bladder section; 2. Drag-reducing ball bearing; 3. Water injection hose; 301. First drain outlet; 302. Second drain outlet; 4. Connector; 5. First support component; 6. Second support component; 7. Traction rope; 8. Handle; 9. Drip hose. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] In the specific embodiments provided in this disclosure, a pull-type water-cooled fire blanket is provided, with reference to... Figures 1 to 5 As shown, the pull-type water-cooled fire blanket includes: a fire blanket body 1, drag-reducing ball bearings 2, and a water injection hose 3. There are multiple drag-reducing ball bearings 2, which are rotatably connected to the middle part of the fire blanket body 1. The water injection hose 3 is fixed to the fire blanket body 1. One end of the water injection hose 3 extends into the interior of the fire blanket body 1, and the other end is located on the exterior of the fire blanket body 1. The end of the water injection hose 3 located outside the fire blanket body 1 is connected to a connector 4. The end of the water injection hose 3 away from the connector 4 is provided with a first drain port 301.
[0031] Through the above technical solution, the multiple friction-reducing ball bearings 2 set in the middle part of the fire blanket body 1 can effectively reduce the friction between the fire blanket and the vehicle body, so that firefighters can easily pull the fire blanket to cover the burning vehicle even when there is water. This solves the problem of traditional fire blankets being difficult to move due to high friction resistance. At the same time, the water injection hose 3 allows external water to be quickly injected into the fire blanket through the connector 4 and discharged through the first drain outlet 301, so that the water can flow along the vehicle body, achieving continuous cooling of the fire source, suppressing the risk of thermal runaway of the power battery, and enabling the fire blanket body 1 to quickly cover the burning vehicle and efficiently control the fire, buying valuable time for fire emergency response, while reducing the intensity of operation and improving the safety of the operation.
[0032] In some implementations, reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the fire blanket body 1 includes a spray section 101 and a water bladder section 102. The water bladder section 102 is arranged around the outside of the spray section 101 and is configured as an annular water bladder. The water injection hose 3 passes through the water bladder section 102 and extends to the middle of the spray section 101. The water injection hose 3 is also provided with a second drain port 302, which is used to drain part of the water in the water injection hose 3 into the water bladder section 102. That is, when the fire blanket body 1 covers the burning vehicle, water is injected into the water injection hose 3 by an external water pipe, so that water flows from the second drain port 102 into the water bladder section 102. Water is discharged from the first drain outlet 301 and the second drain outlet 302. Water discharged from the first drain outlet 301 seeps out of the spray section 101 and flows along the vehicle body. Water discharged from the second drain outlet 302 flows into the annular water bag, thereby filling the annular water bag and increasing its weight. At this time, the annular water bag located outside the spray section 101 contacts and adheres to the ground. The fire blanket body 1 covers the burning vehicle in an almost enclosed area, isolating the vehicle fire source from the outside air, reducing the oxygen supply, and thus effectively suppressing the spread of the fire.
[0033] Meanwhile, the water flowing from the spray unit 101 flows over the body of the burning vehicle and onto the ground. At this time, because the annular water bag is attached to the ground, it will block the water, thus forming a water seal barrier between the ground and the fire blanket, further isolating the outside air from contact with the burning vehicle.
[0034] Meanwhile, when the water flowing from the spray unit 101 reaches the ground, it will collect into a pool under the obstruction of the annular water bladder, forming a local water storage area. First, this local water storage area can absorb the heat emitted by the burning vehicle, reduce the vehicle body temperature, and effectively suppress battery thermal runaway. Second, the existence of the local water storage area prolongs the contact time between the water and the vehicle body, providing a more lasting cooling effect compared to the rapidly flowing water. Third, the local water storage area and the annular water bladder together form a double water-sealing structure, which not only isolates air from the side but also blocks the oxygen supply from the bottom, forming a three-dimensional fire control environment.
[0035] In some implementations, reference Figure 1 and Figure 3 As shown, the drag-reducing roller is provided on the spray section 101. The outer surface of the spray section 101 and the outer surface of the water bag section 102 are both provided with flame-retardant and high-temperature resistant coatings. The drag-reducing roller enables personnel to efficiently and conveniently cover the fire blanket body 1 onto the burning vehicle. The flame-retardant and high-temperature resistant coating can resist the direct burning of high-temperature flames and protect the structural integrity of the water injection hose 3.
[0036] In some embodiments not shown, rubber suction cups are also included. There are multiple rubber suction cups, which are spaced apart and arranged around the water bladder 102. The rubber suction cups and the drag-reducing balls 2 are arranged on the same side. That is, the rubber suction cups can increase the friction between the water bladder 102 and the ground, thereby further enhancing the stability of the fire blanket after it is laid and covered. Specifically, during the covering operation, after the fire blanket body 1 is quickly pulled and positioned by the drag-reducing balls 2, the water bladder 102 fills with water, increases its weight, and adheres to the ground. The rubber suction cups can firmly adhere to the ground under negative pressure, preventing the fire blanket from shifting or curling under unstable factors such as wind disturbance, ground slope, or fire impact.
[0037] In some embodiments not shown, a one-way pressure relief valve for the water bladder is also included. This valve is disposed on the water bladder portion 102, and the valve and the rubber suction cup are positioned opposite each other along the height of the water bladder portion 102. The one-way pressure relief valve controls the pressure inside the water bladder portion 102, preventing it from filling completely with water. This maximizes the contact area between the water bladder portion 102 and the ground. In other words, by adjusting the pressure inside the water bladder, the valve ensures that the water bladder portion 102 maintains appropriate flexibility when filled with water, allowing it to conform more closely to the ground. When the contact area between the water bladder portion 102 and the ground is maximized, the fire blanket's coverage effect is optimized, effectively preventing outside air from entering and reducing oxygen supply, thereby effectively suppressing the spread of fire.
[0038] In some embodiments not shown, the top of the fire blanket body 1 is also provided with a symmetrically arranged explosion-proof pressure relief port that is closed by Velcro and can be opened outward in one direction. This is used to effectively relieve the pressure of gas accumulation and deflagration in vehicles covered by the fire blanket. That is, when the fire blanket covers a vehicle, especially when the power battery of a new energy vehicle catches fire, the thermal runaway process of the battery will produce a large amount of flammable, explosive and toxic gases that accumulate under the fire blanket. Once ignited, this will lead to deflagration or violent explosion, and create a large explosion overpressure that tears the fire blanket and causes secondary disasters. To address this issue, the explosion-proof pressure relief vent of the fire blanket provides a channel that allows gas to escape promptly when it accumulates to a certain level, effectively preventing the risk of explosion due to rapid gas accumulation. Simultaneously, the vent is sealed with Velcro, ensuring it remains tightly closed under normal conditions and preventing accidental gas leakage due to external interference or improper operation. Only when the internal pressure becomes excessive will the Velcro automatically tear open under pressure, allowing the vent to open outwards in one direction and release the flammable and explosive gas accumulated under the fire blanket.
[0039] In some implementations, reference Figure 4 As shown, the fire blanket body 1 also includes a first support member 5 and a second support member 6. The first support member 5 is arranged around the outside of the spray section 101 and is located between the spray section 101 and the water bladder section 102. The second support member 6 is arranged around the outside of the water bladder section 102. The first support member 5 connects the spray section 101 and the water bladder section 102 together, thereby ensuring that the two can work together during use. That is, the cooling of the spray section 101 and the filling of the water bladder section 102 are effectively fixed and supported by the first support member 5, avoiding the failure of the fire blanket function or incomplete coverage caused by uneven pressure or positional displacement. At the same time, the first support member 5 effectively increases the overall structural strength of the fire blanket, ensuring that it will not deform or break due to load or uneven force when used in a fire.
[0040] The second support member 6 is arranged around the outside of the water bladder 102 and is used to connect the towing rope 7 and the handle 8. The second support member 6 further improves the operability of the fire blanket. That is, the setting of the towing rope 7 and the handle 8 effectively improves the convenience of operation. Firefighters can quickly and stably operate the fire blanket through the towing rope 7 or the handle 8, making the fire extinguishing process more efficient. At the same time, the function of the second support member 6 is also reflected in stabilizing the position of the water bladder 102, ensuring that the water bladder can be evenly stressed when the fire blanket is pulled to cover, and that the fire blanket structure will not be damaged due to uneven support or improper pulling.
[0041] In some implementations, reference Figure 5As shown, the fire blanket body 1 also includes a drip hose 9. One end of the drip hose 9 is connected to the first drain outlet 301, and the other end is fixed to the second support member 6. The drip hose 9 is provided with multiple drip holes, and there are multiple drip hoses 9 distributed in a radiating pattern. Water discharged from the first drain outlet 301 can enter into the drip hose 9 and be discharged through the drip holes. The multiple drip hoses 9 distributed in a radiating pattern can be evenly distributed to all parts of the spray section 101, thereby achieving all-round cooling of the fire source. At the same time, some of the drip hoses 9 located in the water bladder section 102 can fill the water bladder section 102 with water, ensuring that the annular water bladder can be filled with water quickly.
[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0043] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 pull-type water-cooled fire blanket, characterized in that, include: The fire blanket body (1), the drag-reducing ball bearings (2), and the water injection hose (3); The number of the drag-reducing ball bearings (2) is multiple, and the multiple drag-reducing ball bearings (2) are rotatably connected to the middle part of the fire blanket body (1). The water injection hose (3) is fixed to the fire blanket body (1). One end of the water injection hose (3) extends into the interior of the fire blanket body (1), and the other end is located outside the fire blanket body (1). The end located outside the fire blanket body (1) is connected to a connector (4). The end of the water injection hose (3) away from the connector (4) is provided with a first drain outlet (301).
2. The pull-type water-cooled fire blanket according to claim 1, characterized in that: The fire blanket body (1) includes a spray section (101) and a water bladder section (102); The water bladder (102) is arranged around the outside of the spray section (101) and is configured as an annular water bladder. The water injection hose (3) passes through the water bladder (102) and extends to the middle part of the spray section (101). The water injection hose (3) is also provided with a second drain port (302), which is used to discharge part of the water in the water injection hose (3) into the water bladder (102).
3. A pull-type water-cooled fire blanket according to claim 2, characterized in that: The drag-reducing roller is disposed on the spray section (101), and the outer surface of the spray section (101) and the outer surface of the water bag section (102) are both provided with flame-retardant and high-temperature resistant coatings.
4. A pull-type water-cooled fire blanket according to claim 3, characterized in that: It also includes rubber suction cups, and there are multiple rubber suction cups. The multiple rubber suction cups are spaced apart and arranged around the bottom of the water bladder (102) that is in contact with the ground. The rubber suction cups and the drag-reducing ball (2) are arranged on the same side.
5. A pull-type water-cooled fire blanket according to claim 3, characterized in that: It also includes a water bladder one-way pressure relief valve, which is disposed on the water bladder part (102) and the water bladder one-way pressure relief valve and the rubber suction cup are disposed opposite to each other along the height direction of the water bladder part (102).
6. A pull-type water-cooled fire blanket according to claim 2, characterized in that: The top of the fire blanket body (1) is also provided with a symmetrically arranged explosion-proof pressure relief port that is closed by Velcro and can be opened outward in one direction, so as to effectively relieve the pressure of gas accumulation and deflagration overpressure in vehicles covered by the fire blanket.
7. A pull-type water-cooled fire blanket according to claim 2, characterized in that: The fire blanket body (1) also includes a first support member (5) and a second support member (6). The first support member (5) is arranged around the outside of the spray section (101) and is located between the spray section (101) and the water bladder section (102). The second support member (6) is arranged around the outside of the water bladder section (102).
8. A pull-type water-cooled fire blanket according to claim 7, characterized in that: It also includes a traction rope (7) and a handle (8), the traction rope (7) being connected to the second support member (6) and the handle (8) being connected to the second support member (6).
9. A pull-type water-cooled fire blanket according to claim 7, characterized in that: The fire blanket body (1) also includes a drip hose (9), one end of which is connected to the first drain outlet (301) and the other end is fixed to the second support member (6). The drip hose (9) is provided with a plurality of drip holes.
10. A pull-type water-cooled fire blanket according to claim 9, characterized in that: The number of drip tubes (9) is multiple, and the multiple drip tubes (9) are distributed in a scattering pattern.