Electric Bus Fire Suppression System

Abstract

Provides electric bus fire suppression equipment. [Solution] The present invention provides a fire suppression device for electric buses, which includes a fire extinguishing water tank installed on a transport vehicle, a foldable frame that is unfolded and folded by hydraulic pressure, and a fire extinguishing water spraying lance that is placed on the foldable frame and that pierces a battery placed on top of an electric bus and then sprays fire extinguishing water supplied from the fire extinguishing water tank into the inside of the battery, wherein when the foldable frame is unfolded, it is positioned adjacent to the side of the electric bus and is fixed to the side of the electric bus, and the fire extinguishing water spraying lance pierces the battery on top of the electric bus by hydraulic pressure, and then sprays fire extinguishing water into the inside of the battery to extinguish the fire.

Description

[Technical Field]

[0001] The present invention relates to a fire suppression device for electric buses, and more specifically, to a fire suppression device for electric buses that has a foldable structure that makes it easy to transport by vehicle, and that can quickly suppress a fire by hydraulically drilling holes in the battery located on top of the electric bus while it is in close contact with the electric bus where a fire has occurred and injecting fire-extinguishing water. [Background technology]

[0002] Recently, the number of registered electric vehicles in Korea has been increasing, and major public transportation such as taxis and buses are being converted to electric vehicles. However, fires are occurring frequently, and due to the characteristics of electric vehicle batteries, fires are not easily extinguished. Therefore, it has become an urgent issue to establish safety measures to deal with electric vehicle fires.

[0003] In particular, in the case of electric buses, batteries that store large amounts of energy are placed on top of the bus, and if the battery catches fire due to an accident or other reasons, the temperature at the heat point is very high and the high-density accumulation of the batteries causes continuous heat transfer, leading to re-ignition, making it difficult to extinguish the fire.

[0004] Once an electric bus's battery catches fire, it is difficult to put out and is prone to reignition until it is completely burned out, making it difficult to extinguish the fire by pouring large amounts of firewater over a long period of time.

[0005] The most effective way to extinguish a fire is to lift the burning electric vehicle with a crane and place it in a tank filled with water to extinguish the fire. However, this method is difficult to apply to electric buses due to their weight and size. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a fire suppression device for electric buses that is foldable for easy transportation by vehicle and that can be placed in close contact with an electric bus where a fire has broken out, hydraulically drilling holes in the battery located on top of the electric bus and injecting fire-extinguishing water to quickly extinguish the fire. [Means for solving the problem]

[0007] According to one embodiment of the present invention, a fire suppression device for an electric bus includes a fire extinguishing water tank installed in a transport vehicle; a foldable frame that is unfolded or folded by hydraulic pressure; and a fire extinguishing water spraying lance that is disposed on the foldable frame and that pierces a battery disposed on top of an electric bus and then sprays fire extinguishing water supplied from the fire extinguishing water tank into the battery. When the foldable frame is unfolded and positioned adjacent to a side of the electric bus and fixed to the side of the electric bus, the fire extinguishing water spraying lance pierces the battery disposed on top of the electric bus by hydraulic pressure and then sprays fire extinguishing water into the battery to extinguish a fire.

[0008] According to an embodiment of the present invention, the foldable frame may include a lower frame, an upper frame rotatably connected to the lower frame via a hinge at one side, a folding cylinder connected between the lower frame and the upper frame and hydraulically controlling the rotation of the upper frame, an upper fixing frame rotatably connected to the upper frame via a hinge at one side and in close contact with an upper surface of the electric bus, an upper fixing cylinder connected between the upper frame and the upper fixing frame and hydraulically controlling the rotation of the upper fixing frame, a lower fixing frame rotatably connected to the lower frame via a hinge at one side and in close contact with an underside of the electric bus, a lower fixing cylinder connected between the lower frame and the lower fixing frame and hydraulically controlling the rotation of the lower fixing frame, and a drilling cylinder disposed at an end of the upper fixing frame and pushing the fire extinguishing water spray lance located at the top of the electric bus toward the battery.

[0009] The foldable frame according to one embodiment of the present invention may further include a mounting portion that is connected to a side of the lower frame and is configured to be adjustable in height up and down, and one side of which is mounted by engaging with the transport vehicle.

[0010] In one embodiment of the present invention, the stationary section may include a stationary locking means having a ring that is installed on the transport vehicle, and a stationary cylinder that is connected between the lower frame and the stationary locking means and adjusts the vertical height of the stationary locking means by hydraulic pressure.

[0011] According to an embodiment of the present invention, the folding cylinder, the upper fixed cylinder, the lower fixed cylinder, the drilling cylinder, and the stationary cylinder may be connected to a hydraulic pump disposed on one side of the transport vehicle via a hydraulic supply line and may be hydraulically controlled.

[0012] According to an embodiment of the present invention, the folding cylinder, the upper fixed cylinder, the lower fixed cylinder, the drilling cylinder, and the stationary cylinder can be independently controlled by the hydraulic pressure supplied from the hydraulic pump.

[0013] The extinguishing water spraying lance according to an embodiment of the present invention may be connected to an extinguishing water pump disposed on one side of the extinguishing water tank via an extinguishing water supply line to receive the extinguishing water.

[0014] The fire extinguishing water injection lance according to one embodiment of the present invention includes a lance head that drills an upper portion of the battery by hydraulic pressure, and a fire extinguishing water nozzle that is formed on a side of a body of the fire extinguishing water injection lance and sprays the fire extinguishing water outward, and the lance head may be replaceably connected to the body of the fire extinguishing water injection lance.

[0015] According to an embodiment of the present invention, the body of the fire extinguishing water injection lance may be formed in multiple stages, and the fire extinguishing water nozzles may be disposed in each stage. [Effects of the Invention]

[0016] The present invention has the advantage that the fire can be quickly extinguished by hydraulically drilling holes in the battery located on top of the electric bus while in close contact with the electric bus where the fire has occurred and injecting fire-extinguishing water.

[0017] Furthermore, the present invention has the advantage that the foldable structure minimizes the volume required for storage and transportation, and that the device can be easily and conveniently transported to the scene of a fire by placing it on the rear of a transport vehicle (e.g., a truck).

[0018] In addition, according to the present invention, since the lance is tightly and firmly fixed to the top and bottom of the electric bus, there is an advantage that the lance for spraying fire extinguishing water does not come off or become detached during the process of drilling the battery using hydraulic pressure and spraying high-pressure fire extinguishing water into the battery, thereby enabling stable fire extinguishing. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a diagram illustrating the overall configuration of an electric bus fire suppression device according to an embodiment of the present invention. [Figure 2] 2 is a diagram showing the electric bus fire suppression device shown in FIG. 1 installed on a transport vehicle. [Figure 3] 10A and 10B are diagrams showing the configuration of the folding frame in more detail. [Figure 4] 10 is a diagram showing the state in which the upper frame is rotated from the lower frame by the folding cylinder. FIG. [Figure 5] FIG. 10 is a diagram showing the state in which the upper fixing frame is rotated from the upper frame by the upper fixing cylinder and comes into close contact with the top of the electric bus. [Figure 6] FIG. 10 is a diagram showing the state in which the lower fixing frame is rotated from the lower frame by the lower fixing cylinder and comes into close contact with the lower part of the electric bus. [Figure 7] 10 is a view showing a state in which a fire extinguishing water injection lance is inserted into the battery by a drilling cylinder to drill a hole in the battery. FIG. [Figure 8] 10 is a view showing a state in which the height of the stationary locking means is adjusted up and down from the lower frame by the stationary cylinder. FIG. [Figure 9] FIG. 2 is a diagram showing the fire extinguishing water injection lance in more detail. [Figure 10] 1A to 1C are diagrams sequentially illustrating a process of extinguishing a fire in an electric bus battery using an electric bus fire suppression device. DETAILED DESCRIPTION OF THE INVENTION

[0020] 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.

[0021] FIG. 1 is a diagram showing the overall configuration of an electric bus fire suppression system 100 according to one embodiment of the present invention, and FIG. 2 is a diagram showing the electric bus fire suppression system 100 shown in FIG. 1 installed on a transport vehicle.

[0022] 1 and 2, a fire suppression device 100 for an electric bus according to an embodiment of the present invention may include a fire extinguishing water tank 110, a foldable frame 120, and a fire extinguishing water spray lance 130.

[0023] The fire water tank 110 is a tank that stores fire water to extinguish a fire that breaks out in the battery of an electric bus, and can be loaded onto a transport vehicle (e.g., a truck) and transported to the fire scene together with the foldable frame 120, regardless of storage capacity.

[0024] The size and volume of the fire extinguishing water tank 110 can be changed according to the loading capacity of the transport vehicle, and for example, a tank having a capacity of 1 ton can be applied.

[0025] In addition, in one embodiment, a fire extinguishing water pump 300 may be disposed on one side of the fire extinguishing water tank 110. The fire extinguishing water pump 300 supplies the fire extinguishing water stored in the fire extinguishing water tank 110 to a fire extinguishing water spraying lance 130 (described later) and generates sufficient water pressure to spray the fire extinguishing water strongly into the battery located above the electric bus.

[0026] In one embodiment, the fire extinguisher water tank 110, the fire extinguisher water pump 300, and the fire extinguisher water injection lance 130 (described later) may be connected to one another via a fire extinguisher water supply line. The fire extinguisher water supply line may be formed to a sufficient length (e.g., 10 m) to allow the fire extinguisher water tank 110 to reach the fire extinguisher water injection lance 130.

[0027] In addition, in one embodiment, the fire extinguishing water supply line may be made of a heat-dissipating material or may be coated on the outside to prevent it from melting in the high temperature heat generated from the battery located on the electric bus.

[0028] Also, although not shown, in one embodiment, the fire extinguishing water supply line is transported in a circularly wound state using a winch or the like, and can be automatically unwound when the foldable frame 120 described below is separated from the transport vehicle and transported by an electric bus.

[0029] The folding frame 120 can be transported to the fire scene while attached to a transport vehicle, and then separated from the transport vehicle to fit closely to the electric bus. Basically, the folding frame 120 can be maintained in a folded state and then unfolded by hydraulic pressure. This will be described in more detail below.

[0030] FIG. 3 is a diagram showing the configuration of the folding frame 120 in more detail.

[0031] Referring to FIG. 3, the folding frame 120 is roughly divided into a lower frame 121 attached to the bottom and an upper frame 122 rotatably connected to the lower frame 121 via a hinge.

[0032] More specifically, the lower frame 121 is attached to the bottom surface and serves to support the folding frame 120 so that it does not fall over, and a plurality of wheels may be arranged on the underside of the lower frame 121 to facilitate movement.

[0033] In one embodiment, a hinge for rotating the upper frame 122 is disposed above the lower frame 121, and the upper frame 122 can rotate from the lower frame 121 via the hinge to stand upright in an upward direction. This is because the upper frame 122 is folded to minimize its volume during normal operation or when the folding frame is being transported, and the upper frame 122 is rotated from the lower frame 121 to increase its height to the height of the electric bus during preparations for fire suppression.

[0034] The upper frame 122 is shorter than the lower frame 121 or has a length corresponding to the length of the lower frame 121, and has a structure in which it rotates upward from the lower frame 121 via a hinge to be unfolded or rotates downward to be folded.

[0035] The upper frame 122 can be rotated from the lower frame 121 by hydraulic pressure via the folding cylinder 123, which will be described below.

[0036] FIG. 4 is a diagram showing a state in which the upper frame 122 is rotated from the lower frame 121 by the folding cylinder 123.

[0037] 4, the lower frame 121 and the upper frame 122 are connected to each other via hinges, and the lower frame 121 and the upper frame 122 are also connected to each other via a folding cylinder 123. The folding cylinder 123 is a hydraulic cylinder that can reduce the length of the cylinder by hydraulic pressure to pull the upper frame 122 upright, or can extend the length of the cylinder to push the upper frame 122 to fold it downward. The folding cylinder 123 can be controlled by hydraulic pressure by being connected to a hydraulic pump 200 disposed on one side of the transport vehicle via a hydraulic supply line.

[0038] Here, the hydraulic pump 200 is connected to the folding cylinder 123 via a high-pressure hydraulic supply line, and can pull the upper frame 122 to stand upright or push the upper frame 122 to fold downward by adjusting the length of the cylinder rod of the folding cylinder 123 using hydraulic pressure.

[0039] An upper fixing frame 124 is disposed above the upper frame 122. One side of the upper fixing frame 124 is rotatably connected to the upper frame 122 by a hinge, and the upper fixing frame 124 is in close contact with the upper surface of the electric bus.

[0040] The upper fixing frame 124 may be connected to the upper frame 122 via a hinge so as to have a certain length forward (facing the electric bus) based on the upper frame 122 being in an upright state. The lower surface of the upper fixing frame 124 may be in close contact with the upper surface of the electric bus, and the length may be formed to be long enough to reach the center of the battery arranged on the top of the electric bus.

[0041] The upper fixed frame 124 can be rotated up and down from the upper frame 122 via the upper fixed cylinder 125, which will be described next.

[0042] FIG. 5 shows the state in which the upper fixing frame 124 is rotated from the upper frame 122 by the upper fixing cylinder 125 and comes into close contact with the upper part of the electric bus.

[0043] 5, the upper fixing frame 124 is connected to the upper frame 122 via a hinge, and the upper fixing frame 124 and the upper frame 122 are connected via an upper fixing cylinder 125. The upper fixing cylinder 125 is a hydraulic cylinder, and the length of the cylinder is shortened by hydraulic pressure to pull the upper fixing frame 124 and lift it slightly upward, or the length of the cylinder is extended to push the upper fixing frame 124 downward, so that it can be in close contact with the top surface of the electric bus.

[0044] That is, the upper fixing frame 124 is positioned on the top of the electric bus while being slightly lifted upward, and then the upper fixing frame 124 is lowered downward via the upper fixing cylinder 125 so that it is in close contact with the top of the electric bus. This allows the foldable frame 120 to be fixed so that it does not get pushed or moved during the process of pressing and drilling the battery arranged on the top of the electric bus or spraying high-pressure fire extinguishing water via the fire extinguishing water spray lance 130 described below.

[0045] The upper fixed cylinder 125 can be controlled by hydraulic pressure by being connected to a hydraulic pump 200 disposed on one side of the transport vehicle through a hydraulic supply line.

[0046] The hydraulic pump 200 is connected to the upper fixed cylinder 125 via a high-pressure hydraulic supply line, and by adjusting the length of the cylinder rod of the upper fixed cylinder 125 using hydraulic pressure, the upper fixed frame 124 can be pulled up slightly or pushed down so that the underside of the upper fixed frame 124 is in close contact with the top surface of the electric bus.

[0047] In addition, a fire-extinguishing water spray lance 130 (described later) may be installed upright facing downward at the end of the upper fixing frame 124. When the upper fixing frame 124 is in close contact with the top surface of the electric bus, the fire-extinguishing water spray lance 130 uses hydraulic pressure to pierce the battery located on top of the electric bus, and then sprays high-pressure fire-extinguishing water into the battery to extinguish the fire, as described later.

[0048] Meanwhile, a lower fixing frame 126 that is in close contact with the underside of the electric bus is also provided on the lower frame 121, corresponding to the upper fixing frame 124. This will be described next.

[0049] FIG. 6 shows the state in which the lower fixed frame 126 is rotated from the lower frame 121 by the lower fixed cylinder 127 and comes into close contact with the lower part of the electric bus.

[0050] 6, the lower fixing frame 126 is connected to the lower side of the lower frame 121 via a hinge, and the lower fixing frame 126 and the lower frame 121 are connected to each other via a lower fixing cylinder 127. The lower fixing cylinder 127 is a hydraulic cylinder, and the length of the cylinder is shortened by hydraulic pressure to pull the lower fixing frame 126 and lower its end portion downward, or the length of the cylinder is extended to push the lower fixing frame 126 and raise its end portion upward, so that the lower fixing cylinder 127 can be in close contact with the underside of the electric bus.

[0051] That is, the lower fixing frame 126 is positioned on the underside of the electric bus while being slightly lowered downward, and then the lower fixing frame 126 is raised upward via the lower fixing cylinder 127 so as to be in close contact with the underside of the electric bus. In this way, the foldable frame 120 can be fixed so as not to be pushed or moved during the process of pressing and drilling the battery arranged on the top of the electric bus or spraying high-pressure fire extinguishing water via the fire extinguishing water spray lance 130 described below.

[0052] The lower fixed cylinder 127 can be controlled by hydraulic pressure by being connected to a hydraulic pump 200 disposed on one side of the transport vehicle through a hydraulic supply line.

[0053] In one embodiment, the upper fixed cylinder 125 and the lower fixed cylinder 127 can be controlled simultaneously. For example, when hydraulic pressure is applied from the hydraulic pump 200 through hydraulic supply lines connected to the upper fixed cylinder 125 and the lower fixed cylinder 127, the upper fixed frame 124 connected to the upper fixed cylinder 125 is lifted upward, and the lower fixed frame 126 connected to the lower fixed cylinder 127 is lowered downward, causing the upper fixed frame 124 and the lower fixed frame 126 to spread apart from each other.

[0054] In this state, if the folding frame 120 moves adjacent to the side of the electric bus where the fire has occurred and the hydraulic direction of the hydraulic pump 200 is changed to the opposite direction, the upper fixing frame 124 connected to the upper fixing cylinder 125 will descend and press tightly against the top of the electric bus, and the lower fixing frame 126 connected to the lower fixing cylinder 127 will ascend and press tightly against the bottom of the electric bus.

[0055] That is, the upper fixing frame 124 and the lower fixing frame 126 change from a widened state to a narrowed state, and as a result, the folding frame 120 can be clamped to the upper and lower parts of the electric bus and firmly fixed to the electric bus.

[0056] In addition, a drilling cylinder 128 may be disposed at an end of the upper fixing frame 124. The drilling cylinder 128 is used to drill a hole in the battery by pushing a fire extinguishing water injection lance 130 (described later) toward the battery located at the top of the electric bus. This will be described below.

[0057] FIG. 7 is a view showing a state in which the fire-extinguishing water injection lance 130 is inserted into the battery by the drilling cylinder 128 to drill a hole in the battery.

[0058] Referring to FIG. 7, when the upper fixing frame 124 is fully attached to the top surface of the electric bus via the upper fixing cylinder 125, the lower end of the fire extinguishing water spray lance 130, which is arranged upright from the end of the upper fixing frame 124, is attached to the top surface of the electric bus.

[0059] In this state, the fire extinguishing water spray lance 130 is lowered downward via the drilling cylinder 128, and the fire extinguishing water spray lance 130 is pushed downward by hydraulic pressure to drill a hole in the battery. The drilling cylinder 128 is connected to a hydraulic pump 200 disposed on one side of the transport vehicle via a hydraulic supply line, and can be controlled by hydraulic pressure.

[0060] At this time, the hydraulic pressure applied to the drilling cylinder 128 from the hydraulic pump 200 may correspond to a pressure sufficient to drill holes in the battery located on the top surface and inside of the electric bus via the fire extinguishing water injection lance 130.

[0061] In this way, the battery at the top of the electric bus is drilled by the hydraulic pressure of the drilling cylinder 128, and fire extinguishing begins as fire water is sprayed into the battery through the underside of the fire water spray lance 130.

[0062] In one embodiment, a mounting portion 129 is provided on one side of the folding frame 120. The mounting portion 129 is adjustable in height and is mounted on a transport vehicle by engaging with the transport vehicle. This will be described below.

[0063] FIG. 8 is a diagram showing a state in which the height of the stationary locking means 129-1 is adjusted up and down from the lower frame 121 by the stationary cylinder 129-1.

[0064] Referring to FIG. 8, a mounting portion 129 is provided on the side of the lower frame 121 so that the height can be adjusted up and down via a plurality of hinges, and one side of the mounting portion 129 is mounted on a transport vehicle by engaging with the transport vehicle.

[0065] The stationary portion 129 may include a stationary engaging means 129-1 having a ring shape that can be installed on the rear side of a transport vehicle (e.g., a truck), and a stationary cylinder 129-2 that adjusts the vertical height of the stationary engaging means 129-1.

[0066] The stationary locking means 129-1 is connected to the side of the lower frame 121 via multiple hinges in a manner that allows it to be adjusted in height up and down, and is connected to the stationary cylinder 129-2, so that it can be pulled up or lowered according to changes in the cylinder length of the stationary cylinder 129-2.

[0067] Therefore, when the stationary locking means 129-1 is in close contact with the rear of the transport vehicle while the stationary cylinder 129-2 is pulling the stationary locking means 129-1 upward due to the hydraulic pressure of the hydraulic pump 200, the hydraulic pressure of the hydraulic pump 200 is applied in the opposite direction, causing the length of the stationary cylinder 129-2 to extend, causing the stationary locking means 129-1 to move downward and engage with the rear of the transport vehicle, thereby being stationary. As a result, the electric bus fire suppression system 100 is ready to be stationed on the transport vehicle and transported.

[0068] Conversely, to separate the electric bus fire suppression system 100 from the transport vehicle, the hydraulic pump 200 is used to pull the stationary locking means 129-1 connected to the stationary cylinder 129-2, causing it to rise and fall upward, and then the electric bus fire suppression system 100 can be separated from the rear of the transport vehicle.

[0069] The fire-extinguishing water spray lance 130 may be installed vertically from an end of the upper fixed frame 124 of the folding frame 120, and the drilling cylinder 128 may be disposed on the upper side thereof. When the drilling cylinder 128 is actuated by hydraulic pressure applied from the hydraulic pump 200, the lance 130 descends downward to forcibly drill a hole in the battery located at the top of the electric bus and then spray fire-extinguishing water into the battery. This will be described below.

[0070] FIG. 9 is a diagram showing the fire-extinguishing water jet lance 130 in more detail.

[0071] Referring to FIG. 9, the fire extinguishing water spraying lance 130 may include a lance head 131 that uses hydraulic pressure to drill a hole in the top of the battery and penetrate into the battery, and a fire extinguishing water nozzle 132 that is formed on the side of the body of the fire extinguishing water spraying lance 131 and sprays the fire extinguishing water outward.

[0072] More specifically, the lance head 131 has a sharply protruding lower end, and may be made of a strong material (e.g., alloy) that can easily pierce not only the upper outer wall of the electric bus but also the top of the battery by the hydraulic pressure of the hydraulic pump 200. In addition, in one embodiment, the lance head 131 may be replaceably connected to the fire-extinguishing water spray lance 130, so that when a performance degradation occurs, such as when the end of the lance head 131 becomes dull or when the lance head 131 is partially damaged or crushed and is unable to properly pierce the top of the battery, the lance head 131 may be replaced with a new lance head 131 from the fire-extinguishing water spray lance 130.

[0073] In addition, an extinguishing water supply line may be connected to the side of the body of the extinguishing water injection lance 130, and the extinguishing water supply line may be connected to the extinguishing water pump 300 connected to the extinguishing water tank 110. Therefore, the extinguishing water may be strongly injected through the extinguishing water nozzle 132 by the water pressure applied by the extinguishing water pump 300.

[0074] At this time, as shown in FIG. 9(b), the body of the fire extinguishing water jetting lance 130 may be formed in multiple stages, and a fire extinguishing water nozzle 132 may be disposed on the side of each stage.

[0075] In addition, an internal supply line may be formed inside the fire extinguishing water injection lance 130 to inject the fire extinguishing water supplied through the fire extinguishing water supply line.

[0076] Next, the entire process of transporting the electric bus fire suppression device 100 to the electric bus fire scene using a transport vehicle and suppressing the fire will be described in order.

[0077] FIG. 10 is a diagram showing the sequence of steps for extinguishing a fire in an electric bus battery using the electric bus fire suppression device 100.

[0078] Referring to FIG. 10, with the electric bus fire suppression device 100 installed on the transport vehicle, the transport vehicle moves near the electric bus where the fire has occurred (S1001), and the hydraulic pressure of the hydraulic pump 200 pulls the stationary locking means 129-1 connected to the stationary cylinder 129-2, and then the folding frame 120 is separated from the transport vehicle (S1002).

[0079] In this state, the hydraulic pump 200 applies hydraulic pressure to the folding cylinder 123 to unfold the upper frame 122 from the lower frame 121 and stand upright (S1003). At the same time, the hydraulic pump 200 applies hydraulic pressure to the upper fixed frame 124 and the lower fixed frame 126 to pull them, thereby causing the ends of the upper fixed frame 124 and the lower fixed frame 126 to unfold (S1004).

[0080] Next, when the folding frame 120 itself comes into close contact with the side of the electric bus where the fire has occurred (S1005), the hydraulic pump 200 applies hydraulic pressure in opposite directions to the upper fixed frame 124 and the lower fixed frame 126, causing the ends of the upper fixed frame 124 and the lower fixed frame 126 to narrow, thereby firmly fixing the folding frame 120 to the electric bus and preventing it from moving (S1006).

[0081] In this state, the hydraulic pump 200 applies hydraulic pressure to the drilling cylinder 128 to push the fire extinguishing water injection lance 130 downward, thereby drilling a hole in the battery (meaning the battery in a thermal runaway state) located above the electric bus (S1007).

[0082] Next, the fire extinguishing water pump 300 supplies the fire extinguishing water stored in the fire extinguishing water tank 110 to the fire extinguishing water spraying lance 130, and the fire extinguishing water is sprayed into the battery through the fire extinguishing water nozzle 132 of the fire extinguishing water spraying lance 130 by strong water pressure, thereby extinguishing the fire (S1008). After the fire has been extinguished, the above-mentioned steps S1001 to S1008 can be performed in reverse, so that the battery can be transported again by the transport vehicle.

[0083] Although the present invention has been described herein with reference to several embodiments, various modifications and changes that would be understood by those skilled in the art to which the invention pertains can be made without departing from the scope of the present invention, and it should be understood that these modifications and changes also fall within the scope of the claims appended hereto. [Explanation of symbols]

[0084] 100 Electric Bus Fire Suppression System 110 Fire Water Tank 120 folding frame 121 Lower frame 122 Upper Frame 123 Folding Cylinder 124 Upper fixed frame 125 Upper fixed cylinder 126 Lower fixed frame 127 Lower fixed cylinder 128 Perforated Cylinder 129 Stationary part 129-1 Stationary locking means 129-2 Stationary cylinder 130 Fire extinguishing water spray lance 131 Lancehead 132 Fire extinguishing water nozzle 200 Hydraulic Pump 300 Fire Water Pump

Claims

1. a fire extinguishing water tank (110) provided in the transport vehicle; a folding frame (120) that is deployed and folded hydraulically; a fire extinguishing water injection lance (130) disposed on the foldable frame (120) for piercing a battery disposed on the upper part of the electric bus and then injecting fire extinguishing water supplied from the fire extinguishing water tank (110) into the battery; The electric bus fire suppression device is configured such that, when the folding frame (120) is unfolded, it is positioned adjacent to the side of the electric bus and is fixed to the side of the electric bus, and the fire extinguishing water injection lance (130) hydraulically pierces the battery at the top of the electric bus, and then injects fire extinguishing water into the battery to extinguish the fire.

2. The folding frame (120) A lower frame (121); an upper frame (122) connected at one side to the lower frame (121) by a hinge so as to be rotatable; a folding cylinder (123) connected between the lower frame (121) and the upper frame (122) and hydraulically controlling the rotation of the upper frame (122); an upper fixed frame (124) that is rotatably connected at one side to the upper frame (122) by a hinge and that is in close contact with the upper surface of the electric bus; an upper fixed cylinder (125) connected between the upper frame (122) and the upper fixed frame (124) and hydraulically controlling the rotation of the upper fixed frame (124); a lower fixed frame (126) that is rotatably connected at one side to the lower frame (121) by a hinge and that is in close contact with the underside of the electric bus; a lower fixed cylinder (127) connected between the lower frame (121) and the lower fixed frame (126) and controlling the rotation of the lower fixed frame (126) by hydraulic pressure; and a perforated cylinder (128) disposed at an end of the upper fixed frame (124) for pushing the fire extinguishing water injection lance (130) located at the top of the electric bus toward the battery.

3. The folding frame (120) 3. The fire suppression device for an electric bus according to claim 2, further comprising a mounting portion (129) connected to a side of the lower frame (121) and configured to be adjustable in height up and down, one side of which is engaged with and mounted on the transport vehicle.

4. The mounting portion (129) is A stationary locking means (129-1) having a ring that is fixed to the transport vehicle; 4. The fire suppression device for electric buses according to claim 3, further comprising: a stationary cylinder (129-2) connected between the lower frame (121) and the stationary locking means (129-1) and hydraulically adjusting the vertical height of the stationary locking means (129-1).

5. 5. The fire suppression device for electric buses according to claim 4, wherein the folding cylinder (123), the upper fixed cylinder (125), the lower fixed cylinder (127), the perforated cylinder (128), and the stationary cylinder (129-2) are connected to a hydraulic pump (200) disposed on one side of the transport vehicle via a hydraulic supply line and are hydraulically controlled.

6. The hydraulic pressure supplied from the hydraulic pump (200) 6. The electric bus fire suppression device according to claim 5, wherein the folding cylinder (123), the upper fixed cylinder (125), the lower fixed cylinder (127), the perforated cylinder (128) and the stationary cylinder (129-2) are each independently controlled.

7. The fire extinguishing water injection lance (130) 2. The fire suppression device for an electric bus according to claim 1, wherein the fire suppression device is connected to a fire extinguishing water pump (300) disposed on one side of the fire extinguishing water tank (110) via a fire extinguishing water supply line to receive the supply of fire extinguishing water.

8. The fire extinguishing water injection lance (130) a lance head (131) for hydraulically drilling the upper part of the battery; a fire extinguishing water nozzle (132) formed on a side of the body of the fire extinguishing water injection lance (130) for injecting the fire extinguishing water outward; 8. The fire suppression device for an electric bus according to claim 7, wherein the lance head (131) is replaceably connected to a body of the fire extinguishing water injection lance (130).

9. 9. The fire suppression device for an electric bus as set forth in claim 8, wherein the body of the fire extinguishing water spray lance (130) is formed in multiple stages, and the fire extinguishing water nozzles (132) are respectively arranged in each stage.

Images