Motorized drill lance device for vehicle fire suppression

Abstract

To provide a motor-type drill lance device for extinguishing vehicle fires, which automatically drills a fire extinguishing hole in the lower part of an electric vehicle battery using the power of a motor when a fire breaks out in the battery, and then sprays water to quickly extinguish the fire. [Solution] The motor-type drill lance device for vehicle fire extinguishing of the present invention includes a height-adjustable trolley (110) that moves and positions under the electric vehicle battery, and a drill module (120) that is installed under the upper plate of the height-adjustable trolley (110) and is in close contact with the electric vehicle battery. The drill module drills holes in the electric vehicle battery using the power of the motor while in close contact with the electric vehicle battery, and then sprays water into the electric vehicle battery through the drilled holes to extinguish a fire that has broken out in the electric vehicle battery.

Description

[Technical Field]

[0001] The present invention relates to a motor-driven drill lance device for extinguishing vehicle fires, and more particularly, to a motor-driven drill lance device for extinguishing vehicle fires that, when a fire occurs in an electric vehicle battery, automatically drills a fire extinguishing hole in the bottom of the electric vehicle battery using the power of a motor and then sprays water to quickly extinguish the fire. [Background technology]

[0002] Recently, as the number of registered electric vehicles in Korea has been increasing, fires have been occurring frequently and, due to the characteristics of electric vehicle batteries, fires are not easily extinguished. This has made it an urgent task to establish safety measures to deal with electric vehicle fires.

[0003] Electric vehicles have high-capacity energy-storing batteries located at the bottom of the vehicle. If the battery catches fire due to an accident or other reasons, the temperature at the heat source is very high, and the high-density battery configuration causes continuous heat transfer, leading to re-ignition, making it difficult to extinguish the fire.

[0004] When a fire breaks out in an electric vehicle and the electric vehicle battery catches fire, it is difficult to put out and is prone to re-ignition until the fire is completely consumed, making it necessary to pour large amounts of firewater over a long period of time to extinguish the fire.The most effective way to solve this problem is to lift the electric vehicle that is on fire with a crane and place it in a tank filled with water to extinguish the fire, but this method is very difficult in practice because it requires the use of a crane to lift the electric vehicle into the tank and also requires the installation (fabrication) of a large tank on site.

[0005] Currently, electric vehicle ownership is rapidly increasing, and at the same time, electric vehicle fires are also on the rise. Due to the unique characteristics of electric vehicle fires, proactive response methods are required, and technology is needed to ensure the safety of firefighters and protect the golden time by effectively extinguishing fires. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a motor-driven drill lance device for vehicle fire extinguishing, which, when a fire occurs in an electric vehicle battery, automatically drills a fire extinguishing hole in the bottom of the electric vehicle battery using the power of a motor and then sprays water to quickly extinguish the fire. [Means for solving the problem]

[0007] A motor-type drill lance device for vehicle fire extinguishing according to one embodiment of the present invention may include a height-adjustable platform that moves and is positioned below an electric vehicle battery, and a drill module that is installed below the upper plate of the height-adjustable platform and is in close contact with the electric vehicle battery, drills holes in the electric vehicle battery using the power of the motor, and then injects water into the electric vehicle battery through the drilled holes to extinguish a fire that has broken out in the electric vehicle battery.

[0008] The height-adjustable carriage according to one embodiment of the present invention may include a pole handle that can be rotated clockwise or counterclockwise to adjust the height of the drill module.

[0009] The drill module according to one embodiment of the present invention includes: a housing disposed below the upper plate and containing water injected from the outside; a motor disposed on one side of the housing; a first bevel gear connected to the motor and inserted into the housing to rotate by power of the motor; an inner housing disposed inside the housing; a hole cutter disposed within the inner housing; an elastic body disposed below the hole cutter and lifting the hole cutter upward by elastic force; and a second bevel gear one side of which is connected to the hole cutter and one side of which meshes with the first bevel gear to rotate the hole cutter by power of the motor. When the hole cutter rotates by power of the motor with an upper side in close contact with a lower side of the electric vehicle battery, a fire extinguishing hole for injecting the water can be drilled at the lower side of the electric vehicle battery.

[0010] According to an embodiment of the present invention, the elastic force of the elastic body allows the hole cutter to maintain a state of being in close contact with the lower part of the electric vehicle battery.

[0011] According to one embodiment of the present invention, a compression fixing pin is provided on one side of the hole cutter to keep the elastic body compressed before the height-adjustable carriage is positioned under the electric vehicle battery. When the hole cutter rotates due to the power of the motor, the compression fixing pin is automatically separated from the hole cutter, so that the hole cutter can be tightly attached to the bottom of the electric vehicle battery.

[0012] According to an embodiment of the present invention, an upper end and a side portion of the hole cutter are provided with a fire extinguishing water outlet for discharging water injected into the housing. The water injected into the housing may be discharged through the side portion of the hole cutter before the fire extinguishing hole is drilled in the lower part of the electric vehicle battery, and may be discharged into the inside of the electric vehicle battery through the upper end of the hole cutter when the fire extinguishing hole is drilled in the lower part of the electric vehicle battery and the hole cutter is inserted through the fire extinguishing hole. [Effects of the Invention]

[0013] According to one aspect of the present invention, when a fire occurs in an electric vehicle battery, a fire extinguishing hole is automatically drilled in the bottom of the electric vehicle battery using the power of a motor, and water is then sprayed to directly cool the battery, thereby providing the advantage of being able to fundamentally and quickly prevent thermal runaway and re-ignition.

[0014] In addition, according to one aspect of the present invention, the extinguishing water can be directly sprayed to the outside through the hole cutter without a separate drain hole, and the extinguishing water cools the frictional heat of the hole cutter when the hole cutter rotates, thereby preventing wear and damage to the blade due to heat.

[0015] In addition, according to one aspect of the present invention, the hole cutter is operated using the power of a motor, so even if the supply pressure (water pressure) of the fire water supplied is low, it can sufficiently drill holes in an electric vehicle battery, which has the advantage of being applicable to installed indoor fire hydrants and water supply systems. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a diagram illustrating the configuration of a motor-type drill lance device for suppressing a vehicle fire according to an embodiment of the present invention; [Figure 2] FIG. 10 is a diagram showing the height of the height-adjustable cart adjusted. [Figure 3]FIG. 10 shows the drill module installed under the upper plate of the height-adjustable carriage. [Figure 4] FIG. 2 is a cross-sectional view showing the configuration of a drill module. [Figure 5] 10 is a diagram showing the hole cutter rotating by the power of the motor to drill a hole in the bottom of the electric vehicle battery. FIG. [Figure 6] 10A to 10C are diagrams sequentially illustrating a process of extinguishing a fire in an electric vehicle battery using a motor-type vehicle fire extinguishing drill lance device according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific details for carrying out the present invention will be described in detail with reference to the accompanying drawings.

[0018] FIG. 1 is a diagram showing the configuration of a motor-type drill lance device 100 for suppressing a vehicle fire according to one embodiment of the present invention.

[0019] Referring to FIG. 1, a motor-type drill lance device 100 for suppressing vehicle fires according to an embodiment of the present invention may include a height-adjustable carriage 110 and a drill module 120.

[0020] First, the height-adjustable platform 110 is configured to move the drill module 120 (described later) to a position below the battery of the electric vehicle, and a pole handle (not shown) can be connected to one side. Therefore, in the event of a fire in the electric vehicle, the user can operate the pole handle to lower the height of the height-adjustable platform 110 as much as possible, so that the drill module 120 can be easily positioned below the battery of the electric vehicle. This will be described in more detail below.

[0021] FIG. 2 is a diagram showing a state in which the height of the height-adjustable cart 110 is adjusted.

[0022] 2, the height-adjustable carriage 110 is configured so that the top plate, which is the installation surface on which the drill module 120 is installed, can be spaced apart by a desired height from the bottom. In this case, the pole handle rotates a length-adjusting bolt bar that crosses a pair of horizontal bars located on the underside of the height-adjustable carriage 110, so that the pair of horizontal bars move closer or farther away from each other, thereby adjusting the height of the installation surface up and down.

[0023] In addition, in one embodiment, the upper plate of the height-adjustable platform 110 may be made of a heat-resistant material (such as steel) to prevent deformation due to heat at the bottom of the electric vehicle battery where thermal runaway occurs.

[0024] The drill module 120 is fixed to the underside of the upper plate of the height-adjustable platform 110 by a plurality of bolts, and while positioned below the electric vehicle battery via the height-adjustable platform 110, the height of the height-adjustable platform 110 can be adjusted upward to approach the bottom of the electric vehicle battery by adjusting the height of the height-adjustable platform 110. This will be described below.

[0025] FIG. 3 is a diagram showing the state in which the drill module 120 is installed under the upper plate of the height-adjustable cart 110, FIG. 4 is a cross-sectional view showing the configuration of the drill module 120, and FIG. 5 is a diagram showing the state in which the hole cutter 125 rotates by the power of the motor 122 to drill a hole in the bottom of the electric vehicle battery.

[0026] 3 to 5, the drill module 120 may broadly include a housing 121, a motor 122, a first bevel gear 123, an inner housing 124, a hole cutter 125, an elastic body 126, and a second bevel gear 127.

[0027] First, the housing 121 is fixed to the underside of the upper plate of the height-adjustable dolly 110 by bolting using a plurality of bolts, and has a water inlet on one side for injecting water from the outside, so that the housing 121 can accommodate water injected from the outside.

[0028] The housing 121 may accommodate a motor 122, a first bevel gear 123, an inner housing 124, a hole cutter 125, an elastic body 126, and a second bevel gear 127, which will be described later, inside, and may have an internal space large enough to accommodate water injected from the outside.

[0029] In particular, the drill module 120 drills a fire extinguishing hole in the bottom of the electric vehicle battery for injecting water by rotating the hole cutter 125 with the power of the motor 122 while the upper side of the hole cutter 125 is in close contact with the bottom of the electric vehicle battery due to the elastic force of the elastic body 126, and water is sprayed into the electric vehicle battery through the drilled hole to quickly extinguish the fire in the electric vehicle battery.

[0030] A motor 122 is disposed on one side (for example, a side surface) of the housing 121, and a first bevel gear 123 connected to the motor 122 is inserted into the housing 121 and protrudes therefrom, and is rotated by the power of the motor 122.

[0031] An inner housing 124 is provided in an upward direction at the lower inside of the housing 121. The inner housing 124 is formed in a hollow cylindrical shape, and a hole cutter 125 and an elastic body 126 can be accommodated inside.

[0032] The hole cutter 125 is accommodated inside the inner housing 124 and can rise from the bottom to the top by the elastic force of the elastic body 126. The hole cutter 125 can be connected to the second bevel gear 127 and rotates in response to the rotation of the second bevel gear 127 to pierce the bottom of the electric vehicle battery and form a fire extinguishing hole.

[0033] At this time, the hole cutter 125 has a hollow pipe shape, and an upper end and a side portion are formed with a fire extinguishing water outlet for discharging water injected into the housing 121 .

[0034] In one embodiment, before a fire extinguishing hole is drilled in the lower part of the electric vehicle battery, the water injected into the housing 121 may be discharged from a fire extinguishing water outlet formed in a side part of the hole cutter 125. After the fire extinguishing hole is drilled, the hole cutter 125 is inserted into the lower part of the electric vehicle battery through the fire extinguishing hole, so that the water may be discharged into the electric vehicle battery through the upper end of the hole cutter 125.

[0035] The elastic body 126 is disposed under the hole cutter 125 and can always keep the hole cutter 125 in close contact with the bottom of the electric vehicle battery by its own elastic force.

[0036] The elastic body 126 is compressed when the hole cutter 125 comes into close contact with the bottom of the electric vehicle battery, and the elastic force allows the upper end of the hole cutter 125 to always come into maximum contact with the bottom of the electric vehicle battery.

[0037] With the hole cutter 125 in close contact with the underside of the electric vehicle battery, the rotational force of the motor 122 is transmitted to the first bevel gear 123 and the second bevel gear 127, causing the second bevel gear 127 to rotate. At this time, the hole cutter 125 is connected to the second bevel gear 127, so the rotation of the second bevel gear 127 causes the hole cutter 125 to rotate, thereby drilling a fire extinguishing hole in the bottom of the electric vehicle battery and penetrating the bottom of the electric vehicle battery. This is possible because the elastic force of the elastic body 126 constantly pushes the hole cutter 125 toward the electric vehicle battery.

[0038] In addition, in one embodiment, a compression fixing pin (not shown) may be provided on one side of the hole cutter 125 to enable the elastic body 126 to maintain a compressed state before the height-adjustable dolly 110 is positioned under the electric vehicle battery.

[0039] The compression fixing pin is configured to maintain a state of being fixed to one side of the hole cutter 125 before the hole cutter 125 is rotated by the power of the motor 122, and to automatically separate from the hole cutter 125 when the motor 122 is driven and the power is transmitted to the second bevel gear 127 via the first bevel gear 123, causing the hole cutter 125 to start rotating.

[0040] Meanwhile, the first bevel gear 123 may correspond to a linear bevel gear protruding from the motor 122 , and the second bevel gear 127 may correspond to a circular bevel gear meshing with the first bevel gear 123 .

[0041] More specifically, the second bevel gear 127 may be formed to surround the outer periphery of the inner housing 124 and may be connected to the hole cutter 125. When the first bevel gear 123 rotates due to the power of the motor 122 while meshing with the first gear 123, the second bevel gear 127 receives the rotational force and rotates together with the first gear 123.

[0042] At this time, the second bevel gear 127 is connected to the hole cutter 125, but does not rise together with the hole cutter 125 when the hole cutter 125 rises due to the elastic body 126, but rotates together with the first bevel gear 123 while maintaining its height.

[0043] In one embodiment, the motor 122 can generate power to rotate the first bevel gear 123, and can be an electric motor, an air motor, or a hydraulic motor.

[0044] In addition, in one embodiment, the first bevel gear 123 is connected to the motor 122 and may be disposed to penetrate the side surface of the housing 121. In this case, a seal member (not shown) for preventing leakage of extinguishing water may be provided in the space between the side surface of the first bevel gear 123 and the side surface of the housing 121 so that the extinguishing water does not leak to the outside through the space between the side surface of the first bevel gear 123 and the side surface of the housing 121.

[0045] In addition, in one embodiment, the hole cutter 125 may have a hollow cylindrical shape, and in this case, the fire extinguishing water injected into the housing 121 can be immediately discharged to the outside through the hollow internal region.

[0046] In addition, in one embodiment, the extinguishing water injected into the housing 121 can cool the blade of the hole cutter 125 and reduce frictional heat while being discharged to the outside. This is because the extinguishing water reduces and cools the frictional heat generated when the hole cutter 125, which rotates at high speed, drills a hole in the bottom of the electric vehicle battery, thereby minimizing wear caused by heat.

[0047] In addition, the hole cutter 125 can rotate at high speed using the power of the motor 122, so it can operate without being affected by the supply pressure (water pressure) of the fire extinguishing water injected into the housing 121.Even if low water pressure is supplied, fire extinguishing water can be sufficiently injected through the perforated hole drilled at the bottom of the electric vehicle battery, so it has the advantage of being fully applicable to existing indoor fire hydrants or water supply systems.

[0048] Next, a process of extinguishing a fire in an electric vehicle battery using the motor-type drill lance device 100 for extinguishing a vehicle fire will be described.

[0049] FIG. 6 is a diagram sequentially illustrating a process of extinguishing a fire in an electric vehicle battery using a motor-type drill lance device 100 for extinguishing a vehicle fire according to an embodiment of the present invention.

[0050] Referring to FIG. 6, first, the motorized vehicle fire suppression drill lance device 100 is mounted on the bottom (S601), and a pole handle is connected to one side of the height adjustable platform 110 (S602).

[0051] Next, a hose for injecting water is connected to the water inlet provided on one side of the housing 121 (S603), and the height-adjustable trolley 110 is moved to a position below the electric vehicle battery where the fire has occurred (S604), and then the pole handle is turned to raise the height of the height-adjustable trolley 110 to fix the position (S605).

[0052] Next, the motor 122 connected to one side of the housing 121 is operated, and power is transmitted to the first bevel gear 123 and the second bevel gear 127 to rotate them, and the hole cutter 125 connected to the second bevel gear 127 begins to rotate (S606).

[0053] As the hole cutter 125 starts to rotate, the compression fixing pin fixed to one side of the hole cutter 125 is released, and the hole cutter 125 moves up and down due to the elastic force of the elastic body 126, so that the upper end of the hole cutter 125 comes into close contact with the underside of the electric vehicle battery (S607).

[0054] Further, as the power of the motor 122 continues to be transmitted, the hole cutter 125 punches a fire hole in the lower part of the electric vehicle battery, and during the fire hole punching process, the hole cutter 125 continues to be pushed upward by the elastic force of the elastic body 126 (S608).

[0055] Upon completion of the drilling, injection into the electric vehicle battery is guided through the fire extinguishing hole (S609).

[0056] In addition, fire extinguishing begins by injecting water into the electric vehicle battery through the fire extinguishing hole. After the fire is extinguished, the supply of injected water is stopped, and the height of the height-adjustable dolly 110 is lowered by turning the pole handle in the opposite direction to separate it from the fire extinguishing hole, and then it is removed from under the electric vehicle.

[0057] As described above, according to the present invention, when a fire occurs in an electric vehicle battery, a fire extinguishing hole is automatically drilled in the lower part of the electric vehicle battery using the power of the motor, and water is then sprayed to quickly extinguish the fire. In particular, when multiple devices (2 to 3 devices) are connected at the same time, the fire extinguishing effect can be further increased.

[0058] Although the present invention has been described with reference to preferred embodiments, those skilled in the art will recognize that various modifications and changes can be made thereto without departing from the spirit and scope of the invention as set forth in the following claims. [Explanation of symbols]

[0059] 100 Motor-type drill lance device for vehicle fire suppression 110 Height-adjustable trolley 120 Drill Module 121 Housing 122 Motor 123 1st bevel gear 124 Internal Housing 125 Hole Cutter 126 Elastic Body 127 Second bevel gear

Claims

1. a height-adjustable carriage (110) that moves and is positioned under the electric vehicle battery; a drill module (120) that is installed under the upper plate of the height-adjustable carriage (110) and that drills holes in the electric vehicle battery by the power of a motor while being in close contact with the electric vehicle battery, and then injects water into the electric vehicle battery through the drilled holes to extinguish a fire that has broken out in the electric vehicle battery; The drill module (120) comprises: A housing (121) disposed below the upper plate for containing water injected from the outside; a motor (122) disposed on one side of the housing (121); a first bevel gear (123) connected to the motor (122), inserted inside the housing (121), and rotated by the power of the motor (122); an inner housing (124) disposed inside the housing (121); a hole cutter (125) disposed within the inner housing (124); an elastic body (126) disposed below the hole cutter (125) and lifting the hole cutter (125) upward by elastic force; a second bevel gear (127) having one side connected to the hole cutter (125) and one side meshing with the first bevel gear (123) to rotate the hole cutter (125) by the power of the motor (122); When the hole cutter (125) rotates by the power of the motor (122) with the upper side thereof in close contact with the lower part of the electric vehicle battery, a fire hole for injecting water is drilled in the lower part of the electric vehicle battery, in a motor-type drill lance device for extinguishing vehicle fires.

2. 2. The motorized vehicle fire suppression drill lance device according to claim 1, wherein the height-adjustable carriage (110) includes a pole handle that rotates clockwise or counterclockwise to adjust the height of the drill module (120).

3. 2. The motor-type drill lance device for vehicle fire suppression according to claim 1, wherein the hole cutter (125) is maintained in close contact with the lower part of the electric vehicle battery due to the elastic force of the elastic body (126).

4. On one side of the hole cutter (125), A compression fixing pin is provided to keep the elastic body (126) compressed before the height-adjustable dolly (110) is positioned under the electric vehicle battery; 2. The motor-type drill lance device for vehicle fire suppression according to claim 1, wherein when the hole cutter (125) rotates due to the power of the motor (122), the compression fixing pin is automatically separated from the hole cutter (125), thereby causing the hole cutter (125) to come into close contact with the lower part of the electric vehicle battery.

5. The upper end and side of the hole cutter (125) are A fire extinguishing water outlet is provided for discharging water injected into the housing (121), The water injected into the housing (121) Before the fire extinguishing hole is drilled in the lower part of the electric vehicle battery, the fire extinguishing agent is discharged through the side part of the hole cutter (125), 2. The motor-type drill lance device for suppressing vehicle fires according to claim 1, wherein when the fire extinguishing hole is drilled in a lower portion of the electric vehicle battery and the hole cutter (125) is inserted through the fire extinguishing hole, the hole cutter (125) is ejected into the inside of the electric vehicle battery through an upper end thereof.

6. 2. The motor-type drill lance device for vehicle fire suppression according to claim 1, wherein the motor (122) is any one of an electric motor, an air motor, and a hydraulic motor.

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