Portable flame retardancy and firewall

Abstract

The present invention relates to a movable fire-retardant protective wall capable of holding and draining fire extinguishing water, and more specifically, comprises: a fire extinguishing water tank formed at the top and an inlet formed at the bottom to be filled with fire extinguishing water; a sluice gate for opening and closing the outlet of the fire extinguishing water tank; and an opening / closing member provided in the fire extinguishing water tank to open and close the sluice gate; wherein, in the event of a fire in a vehicle, the protective wall is installed by surrounding the vehicle with the fire extinguishing water tank, and the fire extinguishing water is contained within the protective wall by opening the sluice gate through the opening / closing member so that the vehicle is submerged in the fire extinguishing water. In other words, the present invention proposes a mobile flame-retardant protective barrier capable of filling and draining fire extinguishing water, which can quickly suppress a fire by automatically surrounding a vehicle where a fire has occurred or an electric vehicle parked in a parking lot (parking space) with a fire extinguishing water tank filled with fire extinguishing water to form a protective barrier, and by opening the water gate of the fire extinguishing water tank by means of an opening / closing member, the fire extinguishing water from the tank is poured out all at once to submerge the vehicle or electric vehicle up to the height of the battery section. In addition, the structure is designed so that a fireproof cloth can be hung on the top of the barrier and deployed over the vehicle to cover and secure the entire vehicle, thereby preventing the spread of flames upward or to the side and minimizing the leakage of smoke to the outside while providing a suffocating extinguishing effect.

Description

Technology Field

[0001] The present invention relates to a mobile flame-retardant protective wall capable of holding and draining fire extinguishing water, having a floor and side joint structure that prevents water from leaking out of the mobile flame-retardant protective wall, which can quickly suppress a fire by automatically surrounding a fire-fighting water tank filled with fire extinguishing water around a vehicle or an electric vehicle parked in a parking lot (parking space) to form a protective wall, and simultaneously opening the water gate of the fire extinguishing water tank by means of an opening / closing member to pour out the fire extinguishing water from the tank all at once so that the vehicle or electric vehicle is submerged in fire extinguishing water up to the height of the battery part. Background Technology

[0002] In the case of a fire in an electric vehicle, thermal runaway occurs in the lithium-ion battery. Since the fire spreads from the thermally runaway cell to adjacent battery cells, the entire battery unit must be submerged in a large amount of water to enable fire suppression.

[0003] In this regard, an experiment to suppress a fire in an electric vehicle using a portable water tank was conducted in April 2021 under the supervision of the Ilsan Fire Station. The fire was suppressed by immersing the electric vehicle in the tank, but the actual installation of the tank, filling with water, and moving the electric vehicle took about 40 minutes, raising the need for improvements regarding the time.

[0004] Currently, the most effective method for extinguishing electric vehicle fires is cooling with a large amount of water. As seen in the thermal runaway mechanism, heat is required for a continuous runaway reaction to occur in the next stage; however, controlling the reaction through cooling can break the chain reaction.

[0005] Therefore, the present invention aims to rapidly install a protective wall and, in particular, to contain a large amount of firefighting water in the protective wall at once so that the battery section of the electric vehicle can be completely submerged.

[0006] In addition, a fireproof cloth deployment and hanging device is included on the top or rear of the protective wall so that the vehicle can be covered with a fireproof cloth, thereby preventing the spread of flames from the battery to the outside and preventing smoke from being emitted upwards when a fire spreads from the vehicle's interior materials. Prior art literature

[0007] Republic of Korea Published Patent Application No. 10-2023-0138746 (October 5, 2023) The problem to be solved

[0008] The present invention has been devised to solve the problems described above.

[0009] One objective is to quickly suppress the fire by automatically surrounding the area around a burning vehicle or an electric vehicle parked in a parking lot (parking space) with a fire extinguishing tank filled with fire extinguishing water to form a protective barrier, and by opening the water gate of the fire extinguishing tank by means of an opening / closing member, the fire extinguishing water from the tank is poured out all at once to submerge the vehicle or electric vehicle up to the height of the battery section.

[0010] Another objective of the present invention is to provide a fire extinguishing water tank, which is a fire wall filled with fire extinguishing water, with wheels that can rotate 360 ​​degrees at the bottom to facilitate movement, and to prevent water discharged from leaking out due to the space at the bottom caused by the wheels, to finish the front with a flame-retardant packing or to create a step difference between the moving wheel part and the front part so that a gap on the floor surface caused by the wheels does not occur due to the slope.

[0011] Another objective of the present invention is to prevent fire extinguishing water filled in the internal space of the protective wall from escaping from the protective wall by introducing a waterproof membrane and a watertight member, respectively, at the bottom of the fire water tank installed as a protective wall and at the connection point between the fire water tank and the tank.

[0012] Another objective of the present invention is to facilitate operations such as storage and transportation of the fire extinguishing water tank by providing a folding part in a certain upper portion of the fire extinguishing water tank so that when the fire extinguishing water tank is not filled with fire extinguishing water, the folding part is folded to reduce the volume of the fire extinguishing water tank.

[0013] Another objective of the present invention is to prevent the spread of flames and smoke by covering the entire vehicle that has caught fire, by providing a fireproof cloth that can be hung on a certain upper part of the fireproof water tank and unfolded or fixed again. means of solving the problem

[0014] A movable fire-retardant protective wall capable of filling and draining fire extinguishing water according to the present invention comprises: a fire extinguishing water tank formed at the top and an inlet formed at the bottom to fill with fire extinguishing water; a sluice gate for opening and closing the outlet of the fire extinguishing water tank; and an opening / closing member provided in the fire extinguishing water tank to open and close the sluice gate; wherein, in the event of a fire in a vehicle, the protective wall is installed by surrounding the vehicle with the fire extinguishing water tank, and the fire extinguishing water is contained within the protective wall by opening the sluice gate through the opening / closing member so that the vehicle is submerged in the fire extinguishing water.

[0015] The lower end of the fire extinguishing water tank according to the present invention is further provided with a heat-resistant waterproof membrane to block the fire extinguishing water trapped in the protective wall from escaping.

[0016] The lower end of the fire extinguishing water tank according to the present invention is characterized by being equipped with a 360-degree rotating wheel to facilitate the movement of the fire extinguishing water tank filled with fire extinguishing water.

[0017] The fire extinguishing water tank according to the present invention is characterized by further being provided with a watertight member to prevent leakage at the connection portion with an adjacent fire extinguishing water tank.

[0018] The present invention is characterized by having a step or a watertight member provided on the front side facing the vehicle to prevent leakage caused by a gap created by a wheel at the bottom of the fire extinguishing water tank.

[0019] The fire extinguishing water tank according to the present invention is characterized by further having a folding part that can be folded and unfolded from the upper part.

[0020] The present invention is characterized by further providing slide parts on both sides of the discharge portion of the fire extinguishing water tank for slide coupling and separation of the water gate.

[0021] The opening and closing member according to the present invention is characterized by comprising a lever, the lower end of which is connected to the sluice gate, and a guide portion formed in the fire extinguishing water tank and inserted to allow the lever to move up and down.

[0022] The upper or rear portion of the fire extinguisher tank according to the present invention is characterized by including a fastening portion for securing a flame-retardant cloth after it is unfolded and covered over the entire vehicle. Effects of the invention

[0023] The mobile fire-retardant protective wall capable of filling and draining fire extinguishing water according to the present invention can install a protective wall by automatically surrounding the area around a vehicle where a fire has occurred or the area around an electric vehicle parked in a parking lot (parking space) with a fire extinguishing water tank filled with fire extinguishing water, and simultaneously opening the water gate of the fire extinguishing water tank by means of an opening / closing member, so that the fire extinguishing water from the fire extinguishing water tank is poured out at once and submerged in the fire extinguishing water up to the height of the battery part of the vehicle or electric vehicle, thereby enabling rapid suppression of the fire.

[0024] In addition, the present invention can detect a fire simultaneously and automatically move a fire extinguishing tank placed in a parking lot, etc., to install a protective wall, thereby enabling the rapid installation of a protective wall and significantly reducing the time required to suppress the fire.

[0025] In addition, the present invention can prevent fire extinguishing water filled in the internal space of the protective wall from escaping from the protective wall by introducing a waterproof membrane and a watertight member, respectively, at the bottom of the fire water tank installed as a protective wall and at the connection point between the fire water tanks.

[0026] In addition, the present invention provides a folding portion in a certain upper part of the fire extinguishing tank so that when the fire extinguishing tank is not filled with fire extinguishing fluid, the folding portion is folded to reduce the volume of the fire extinguishing tank, thereby facilitating tasks such as storage and transportation of the fire extinguishing tank.

[0027] In addition, the present invention is equipped with a fireproof cloth that can be hung on a certain upper part of the fireproof water tank to unfold or re-secure it, thereby covering the entire vehicle that has caught fire to prevent the spread of flames and smoke. Brief explanation of the drawing

[0028] FIG. 1 is a perspective view showing a movable flame-retardant protective wall capable of retaining and draining fire extinguishing water according to the present invention. FIG. 2 is a perspective view showing a state in which fire extinguishing water is filled in a movable flame-retardant protective wall according to the present invention. FIG. 3 is a perspective view showing a fire extinguishing water tank in a movable flame-retardant protective wall according to the present invention. FIG. 4 is a perspective view showing a watertight member formed in a fire-resistant water tank in a movable flame-retardant protective wall according to the present invention. FIG. 5 is a front view showing another embodiment of a fire extinguishing water tank in a movable flame-retardant protective wall according to the present invention. Specific details for implementing the invention

[0029] In order to explain the present invention, the operational advantages of the present invention, and the objectives achieved by the implementation of the present invention, preferred embodiments of the present invention are illustrated below and examined with reference thereto.

[0030] First, the terms used in this application are intended to describe specific embodiments and are not intended to limit the invention; singular expressions may include plural expressions unless the context clearly indicates otherwise. Furthermore, in this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0031] In describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the invention, such detailed description is omitted.

[0032] As illustrated in FIGS. 1 to 5, the movable flame-retardant protective wall capable of retaining and draining fire extinguishing water according to the present invention comprises a fire extinguishing water tank (10), a water gate (20), and an opening / closing member (30).

[0033] As illustrated in FIGS. 1 to 4, the fire extinguishing water tank (10) according to the present invention is configured to be filled with fire extinguishing water (W) and discharge a large amount of fire extinguishing water (W) at once by opening the sluice gate (20).

[0034] The fire extinguishing water tank (10) is configured as a roughly rectangular prism and may be composed of an inlet (11) for introducing fire extinguishing water (W) at the top and an outlet (13) formed at the bottom of one side (inner side relative to the installed protective wall (FW)). Accordingly, fire extinguishing water (W) is filled through the inlet (11), and in this case, the outlet (13) is closed by a sluice gate (20) to be described later.

[0035] The fire extinguisher tank (10) configured in this manner forms a protective wall (FW) that surrounds the vehicle in the event of a fire. Based on the illustration in FIGS. 1 and 2, two fire extinguisher tanks (10) are connected to each of the two side walls, and one fire extinguisher tank (10) is placed at the front and one at the rear, connecting to the fire extinguisher tanks (10) forming the two side walls, thereby forming a closed rectangular space. That is, a total of six fire extinguisher tanks (10) can be installed in the protective wall (FW) of the same size as the fire extinguisher tank (10) shown in FIG. 3 (a).

[0036] In the protective wall (FW) according to the present invention, when assuming a state where an electric vehicle is parked in a parking lot in the event of a fire in a vehicle, the size of the parking space of the vehicle is standardized to approximately 2.6m × 5.5m. In this case, the height of the battery section of the electric vehicle from the floor is a maximum of 19cm, and the thickness of the battery pack is 2.5cm. Therefore, the total height of the battery section is approximately 21.5cm or less from the floor of the parking space.

[0037] Based on the size of the parking space, the total volume of water submerged in the battery section and the amount of water source are as follows.

[0038] 1. Volume: Parking space size × Battery height = 2.6m × 5.2m × 0.215m = 2.9068m 3

[0039] 2. Amount of Suwon: 2.9068 ton

[0040] In other words, the above volume and water source amount are the minimum amounts considering the height of the battery section.

[0041] In the case of a fire in an electric vehicle, thermal runaway occurs in the lithium-ion battery, and since the fire spreads from the thermally runaway cell to adjacent battery cells, the entire battery unit must be submerged in a large amount of water to enable fire suppression.

[0042] In this regard, an experiment to suppress an electric vehicle fire using a portable water tank was conducted in April 2021 under the supervision of the Ilsan Fire Station. The fire was suppressed by immersing an electric vehicle that had caught fire in the tank, but the actual installation of the tank, filling with water, and moving the electric vehicle took about 40 minutes, raising the need for improvements regarding the time.

[0043] Currently, the most effective method for extinguishing electric vehicle fires is cooling with a large amount of water. As seen in the thermal runaway mechanism, heat is required for a continuous runaway reaction to occur in the next stage; however, controlling the reaction through cooling can break the chain reaction.

[0044] Therefore, in the present invention, a protective wall (FW) can be installed quickly, and in particular, a large amount of firefighting water (W) can be trapped in the protective wall (FW) so that the battery portion of the electric vehicle can be completely submerged.

[0045] To this end, the size of one fire extinguishing water tank (10) having flame-retardant performance can be manufactured to be 2.6m (length) × 0.2m (width) × 1.2m (height) as shown in FIG. 3 (a). In this case, when the fire extinguishing water tank (10) is completely filled with fire extinguishing water (W), the water source volume of one fire extinguishing water tank (10) is 0.624 ton, so the water source volume of six fire extinguishing water tanks (10) becomes 3.744 ton. Therefore, the height of the fire extinguishing water (W) filled in the inner space of the protective wall (FW) is filled up to 0.277m, which is higher than the height of the electric vehicle's battery section (0.215m) based on the volume of the parking space, so that the battery section can be completely submerged.

[0046] As another embodiment of such a fire hydrant (10), it can be manufactured with dimensions of 1.3m (length) × 0.2m (width) × 1.2m (height) for convenience of storage, as shown in FIG. 3 (b). In this case, four fire hydrants (10) can be connected to each side wall of the protective wall (FW), and two fire hydrants (10) can be connected to the front and rear to form the protective wall (FW). That is, a total of 12 fire hydrants (10) can be installed in the protective wall (FW) formed by the fire hydrants (10) shown in FIG. 3 (b).

[0047] As described above, in the case of a protective wall (FW) formed by interconnecting fire extinguishing water tanks (10), watertightness must be ensured in order to contain fire extinguishing water (W) in the internal space of the protective wall (FW).

[0048] That is, it is necessary to prevent the fire extinguishing water (W) filled in the internal space of the protective wall (FW) from leaking out of the protective wall (FW). In particular, it is necessary to prevent leakage at the connection point between the lower part of the fire extinguishing water tank (10) that is in contact with the parking surface and the fire extinguishing water tank (10).

[0049] First, to prevent leakage at the bottom of the fire extinguishing water tank (10), a heat-resistant waterproof membrane (40) that spreads from the bottom of the fire extinguishing water tank (10) may be installed. This heat-resistant waterproof membrane (40) can be implemented in various forms. For example, it may be a structure that spreads simultaneously with the opening of the sluice gate (20), or a structure that spreads before the opening of the sluice gate (20). By the heat-resistant waterproof membrane (40) configured in this way, the entire bottom of the protective wall (FW) is made of a watertight structure, thereby preventing the fire extinguishing water (W) from escaping to the outside of the protective wall (FW) when the fire extinguishing water (W) is contained within the internal space of the protective wall (FW).

[0050] Next is a case where a watertight member (50) is provided at the connection point between the fire extinguisher tanks (10). That is, as shown in FIG. 4, a connecting part (17), namely a connecting projection (17a) and a connecting groove, can be formed on the connecting surface between the fire extinguisher tanks (10). Accordingly, when connecting the fire extinguisher tanks (10), the connecting projection (17a) is inserted into the connecting groove (17b). In this case, the watertight member (50) is attached to the connecting surface between the fire extinguisher tanks (10), and when the connecting parts (17) are connected, the watertight members (50) of each fire extinguisher tank (10) come into contact, thereby blocking leakage. In this case, it is preferable to configure it so that the watertight member (50) is pressed and completely sealed by the connection between the connecting projection (17a) and the connecting groove (17b).

[0051] In this way, the watertightness of the protective wall (FW) can be ensured by the heat-resistant waterproof membrane (40) and the watertight member (50), thereby blocking the fire extinguishing water (W) from escaping to the outside of the protective wall (FW), so that the fire extinguishing water (W) can be contained inside the protective wall (FW) without leakage.

[0052] In addition, the fire extinguishing water tank (10) according to the present invention may be provided with a 360-degree rotating wheel at its bottom to facilitate the movement of the heavy fire extinguishing water tank (10) filled with fire extinguishing water (W). Here, the wheel may be provided so as to be embedded inward rather than protruding outward from the fire extinguishing water tank (10).

[0053] At this time, to prevent leakage caused by a gap created by the wheels of the fire extinguisher tank (10), a step (protrusion) may be provided on the front side facing the vehicle (inside the protective wall (FW) of FIG. 1) or a watertight member may be provided. Here, the watertight member may be a watertight member (50) that can be pressed by water pressure as described above and completely adhere to the floor of the parking surface.

[0054] Meanwhile, the fire extinguisher (10) according to the present invention may be provided with a folding part (15) so that the protective wall (FW) can be folded and unfolded as shown in FIG. 5.

[0055] That is, the folding part (15) is formed on the upper part of the fire extinguishing water tank (10), that is, a part above a certain height, so that when the fire extinguishing water (W) is not filled, it is folded as shown in FIG. 5 (b) to reduce the height of the fire extinguishing water tank (10), and when the fire extinguishing water (W) is filled, the folding part (15) is unfolded as shown in FIG. 5 (a) to increase the height of the fire extinguishing water tank (10).

[0056] The folding part (15) is intended to reduce the height of the fire extinguisher tank (10) when the fire extinguisher tank (10) is not in use, thereby facilitating storage or transportation of the fire extinguisher tank (10). This folding part (15) may be in the form of a standard bellows, but any structure designed to reduce volume may be adopted.

[0057] As shown in FIGS. 1 and 2, the sluice gate (20) according to the present invention is configured to open and close the discharge portion (13) of the fire extinguishing water tank (10).

[0058] That is, the sluice gate (20) can be configured to be able to move up and down to open and close the discharge section (13) of the fire extinguishing water tank (10). In this case, a groove-shaped slide section (19) formed in a vertical direction may be provided on the side of the discharge section (13) of the fire extinguishing water tank (10). Thus, the sluice gate (20) can be inserted into the slide section (19) and open and close the discharge section (13) through the movement of moving up and down. In this case, the upper part of the slide section (19) is an open structure to enable the movement of the sluice gate (20), and the lower part is a closed structure to prevent the sluice gate (20) from escaping through the lower part of the slide section (19).

[0059] In the protective wall (FW) according to the present invention, when the sluice gate (20) is opened in each fire extinguishing water tank (10), fire extinguishing water (W) must be able to be poured out all at once through the discharge section (13) for rapid fire suppression. Therefore, the size of the discharge section (13) of the fire extinguishing water tank (10) must be manufactured to be such that the fire extinguishing water (W) can be discharged all at once, and at the same time, the sluice gate (20) must also be manufactured to be such that the discharge section (13) can be opened and closed.

[0060] As shown in FIGS. 1 and 2, the opening / closing member (30) according to the present invention is configured to be placed in a fire extinguishing water tank (10) so as to be able to open and close a water gate (20).

[0061] This opening / closing member (30) may be composed of a lever (31) capable of raising and lowering and a guide part (33) for supporting the lever (31).

[0062] First, the lever (31) is connected at the bottom to the top of the sluice gate (20). In this case, two levers (31) may be placed in each fire extinguisher tank (10), but as an example, it is also possible to place one or more.

[0063] Next, the guide portion (33) can be configured in the form of a vertical hole on the inner side of the fire extinguisher tank (10) relative to the protective wall (FW) on one side of the fire extinguisher tank (10). Thus, the lever (31) is inserted into the guide portion (33), and the lever (31) can be stably supported during the raising and lowering movements of the lever (31).

[0064] With such an opening / closing member (30), when the lever (31) is pulled upward, the sluice gate (20) rises and the discharge section (13) opens, and when the lever (31) is pulled downward, the sluice gate (20) lowers and the discharge section (13) can be closed.

[0065] Meanwhile, the fire extinguisher tank (10) may include a fastening part that secures a flame-retardant cloth attached to the top or rear part of the fire extinguisher tank (10) and spreads it over the entire vehicle. The flame-retardant cloth can be fastened by the fastening part so as to cover the entire fire extinguisher tank (10). By doing so, the entire vehicle that has caught fire can be covered to prevent the spread of flames and smoke.

[0066] The movable fireproof barrier (FW) according to the present invention, configured as described above, is installed by surrounding the vehicle with fire extinguishing water tanks (10) when a fire occurs in a general automobile or electric vehicle. In this case, when a fire occurs while the vehicle is parked in a parking space, the fire extinguishing water tanks (10) can be interconnected on the parking lines surrounding the parking space to form a barrier (FW).

[0067] When the protective wall (FW) is installed in this manner, the opening / closing member (30) placed in each fire water tank (10) is pulled upward at once to open the water gate (20), and the fire extinguishing water (W) filled in the fire water tank (10) is poured out at once through the discharge part (13) and can be contained within the internal space of the protective wall (FW). At this time, the vehicle is submerged by the fire extinguishing water (W) contained in the protective wall (FW). In particular, in the case of an electric vehicle, as described above, the fire can be suppressed by being submerged in the fire extinguishing water (W) up to the height of the battery part.

[0068] Meanwhile, the method of installing a protective wall (FW) according to the present invention identifies the location where a fire occurred when a fire occurs in a vehicle or electric vehicle parked in a parking lot or around a vehicle or electric vehicle where a fire has occurred. To this end, a fire detection sensor may be provided in the parking lot, etc., and a management office or integrated control system near the parking lot may receive a fire detection signal detected by the fire detection sensor.

[0069] After confirming the location of the fire, the fire extinguishing water tank (10) containing fire extinguishing water (W) is automatically moved to the location of the fire. In this case, the fire extinguishing water tank (10) may be equipped with a drive unit for movement, such as a drive motor and a drive roller. In a management office or integrated control system, the drive unit of the fire extinguishing water tank (10) is controlled using a control module, such as a remote controller, to automatically move the fire extinguishing water tank (10) to the location of the fire.

[0070] In this case, as illustrated in FIGS. 1 and 2, when the fire extinguisher is configured as a set of six fire extinguisher tanks serving as a protective wall (FW), the remaining five fire extinguisher tanks (10) may be configured to move along with the first fire extinguisher tank (10) when it moves. That is, when the first fire extinguisher tank (10) is controlled, the remaining five fire extinguisher tanks (10) may be driven by a mechanism dependent on the control of the first fire extinguisher tank (10). Automatic and remote control of such fire extinguisher tanks (10) can be implemented in various forms. In this case, the fire extinguisher tanks may be kept in the vicinity at all times indoors, underground, or in an outdoor parking lot, or, if necessary, may be rapidly transported to the location of a fire to install a protective wall.

[0071] In this way, when the fire extinguisher tanks (10) are automatically moved and reach the fire location, the worker can install six fire extinguisher tanks (10). At this time, as shown in FIG. 3 (b), if the fire extinguisher tanks (10) are small, the worker can install a protective wall (FW) by moving a total of 12 fire extinguisher tanks (10).

[0072] When the installation of the protective wall (FW) is finished, the opening / closing member (30) is pulled upward to open the sluice gate (20), and the fire extinguishing water (W) is poured out all at once through the discharge section (13) to fill the protective wall (FW). At this time, the fire extinguishing water trapped in the fire wall is submerged up to the height of the electric vehicle's battery section or higher, thereby extinguishing the fire.

[0073] In this case, although not shown in the attached drawings, it is also possible to configure the opening and closing operation of the sluice gate to open and close automatically.

[0074] As such, the present invention has been described with reference to an embodiment illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0075] Therefore, the true technical scope of protection of the present invention should be determined by the technical concept of the appended claims. Explanation of the symbols

[0076] FW: Firewall W: Firefighting water 10: Fire water tank 11: Inlet 13: Outlet 15: Folding part 17: Joining part 17a : Connecting projection 17b : Connecting groove 19 : Slide section 20 : Sluice gate 30 : Opening / closing member 31: Lever 33: Guide part 40 : Waterproof membrane 50 : Watertight member

Claims

Claim 1 A plurality of fire extinguishing water tanks (10) formed with an inlet section (11) formed at the top and an outlet section (13) formed at the bottom, each filled with fire extinguishing water (W); a water gate (20) for opening and closing the outlet section (13) of the fire extinguishing water tanks (10); The apparatus comprises: an opening / closing member (30) provided in the fire extinguishing water tank (10) to open / close the water gate (20); wherein, in the event of a vehicle fire, a plurality of the fire extinguishing water tanks (10) are connected to surround the vehicle to form a closed rectangular space, thereby installing a protective wall (FW); and the water gate (20) is opened through the opening / closing member (30) of each of the fire extinguishing water tanks (10) so that the fire extinguishing water (W) filled inside the fire extinguishing water tank (10) is temporarily poured out through the discharge part (13), thereby trapping the fire extinguishing water (W) inside the protective wall (FW) so that the vehicle is submerged in the fire extinguishing water (W) within the internal space of the protective wall (FW), and the fire is suppressed by submerging the vehicle in the fire extinguishing water (W) up to the height of the vehicle's battery section; and there is a mechanism at the bottom of the fire extinguishing water tank (10) to block the fire extinguishing water (W) trapped in the protective wall (FW) from escaping. A movable flame-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that a heat-resistant waterproof membrane (40) is further provided, a 360-degree rotating wheel is provided at the bottom of the fire extinguishing water tank (10) to facilitate movement of the fire extinguishing water tank (10) filled with fire extinguishing water, and to prevent leakage caused by the formation of a gap due to the 360-degree rotating wheel provided at the bottom of the fire extinguishing water tank (10), a step protruding more than the bottom of the 360-degree rotating wheel is provided on the inner side of the protective wall (FW) corresponding to the front side of the fire extinguishing water tank (10) facing the vehicle, or a watertight member including a flame-retardant packing that can be completely adhered to the floor of the parking surface while being pressurized by water pressure is provided. Claim 2 delete Claim 3 delete Claim 4 A movable flame-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that, in claim 1, the fire extinguishing water tank (10) is further provided with a watertight member (50) to prevent leakage at the connection portion with an adjacent fire extinguishing water tank (10). Claim 5 delete Claim 6 A movable flame-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that, in order to reduce the height of the fire extinguishing water tank (10) when the fire extinguishing water tank (10) is not in use and to facilitate storage or transport of the fire extinguishing water tank (10), the fire extinguishing water tank (10) is further provided with a folding part (15) that can be folded and unfolded at the upper part. Claim 7 A movable flame-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that, in claim 1, a slide part (19) for sliding connection and separation of the sluice gate (20) is further provided on both sides of the discharge part (13) of the fire extinguishing water tank (10). Claim 8 A movable flame-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that, in claim 1, the opening and closing member (30) comprises a lever (31) with its lower end connected to the sluice gate (20) and a guide part (33) formed in the fire extinguishing water tank (10) and inserted so that the lever (31) can move up and down. Claim 9 A movable fire-retardant protective wall capable of holding and draining fire extinguishing water, characterized in that, in claim 1, a fire-retardant cloth is fastened to the top or rear portion of the fire extinguishing water tank (10), unfolded to cover the entire vehicle, and then fixed.

Images