Electric bus fire suppression device capable of loading and unloading via hydraulic cylinders

Abstract

This invention relates to an electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder. [Solution] The present invention relates to an electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder, and includes a rotating assist plate installed at the rear of the loading box of the transport vehicle, a hydraulic cylinder positioned in the loading box of the transport vehicle, a foldable frame that is expanded and folded via hydraulic pressure, a mounting base positioned on one side of the foldable frame and configured to engage with the end of a cylinder rod pulled out from the hydraulic cylinder, and a fire extinguishing water spraying lance that, after drilling a hole in the battery located on top of the electric bus, sprays fire extinguishing water into the inside of the battery.

Description

Technical Field

[0006] , , , , ,

[0001] The present invention relates to an electric bus fire suppression device that can be loaded and handled via a hydraulic cylinder. More specifically, loading and handling onto a transport vehicle via a hydraulic cylinder can be easily performed, and in a state of being in close contact with an electric bus where a fire has occurred, the battery arranged on the upper part of the electric bus is perforated hydraulically and fire extinguishing water is injected, so as to be able to suppress the fire promptly. The present invention relates to an electric bus fire suppression device that can be loaded and handled via a hydraulic cylinder.

Background Art

[0002] Recently, the number of registered electric vehicles in the country has been increasing more and more, and in a situation where taxis and buses, which are major mass transports, are also changing to electric vehicles, fires occur frequently. Due to the characteristics of the batteries of electric vehicles, it is not easy to extinguish the fire, etc. Taking safety measures against fires in electric vehicles has become an urgent issue.

[0003] In particular, an electric bus arranges a battery storing a high-capacity energy on the upper part of the bus. When ignition starts in the battery due to an accident or various other reasons, the temperature of the heat generation point is very high, and continuous heat transfer occurs due to the form of being densely accumulated and reignition occurs, etc., making it difficult to suppress the fire.

[0004] When a fire breaks out in the battery of an electric bus, it does not go out easily and reignites easily until it completely burns, so there is a difficulty that a large amount of fire extinguishing water must be used for a long time to suppress the fire.

[0005] The most effective fire suppression method to solve this is a method of lifting the electric vehicle where a fire has occurred with a crane and putting it into a water-filled water tank for suppression. However, in the case of an electric bus, due to its weight and size, there is a problem that it is difficult to apply such a method.

Summary of the Invention

Problems to be Solved by the Invention

[0007] An electric bus fire suppression device 100, which can be loaded and unloaded via a hydraulic cylinder according to one embodiment of the present invention, comprises a rotating assist plate 110 installed at the rear of the loading box of the transport vehicle, a hydraulic cylinder 120 positioned in the loading box of the transport vehicle, a foldable frame 130 that is expanded and folded via hydraulics, a mounting base 140 positioned on one side of the foldable frame 130 and configured such that one side engages with the end of a cylinder rod 121 that is pulled out from the hydraulic cylinder 120, and a mounting base 140 positioned on the foldable frame 130 that, after drilling a hole for the battery located on top of the electric bus, the operation The system includes a fire extinguishing water spraying lance 150 that sprays fire extinguishing water supplied from a fire extinguishing water tank mounted on the transport vehicle into the battery, wherein the mounting base 140 is attached to the rotating assist plate 10 with the end of the cylinder rod 121 engaged and the system is maintained in a state where it is loaded onto the transport vehicle, and when the cylinder rod 121 is pulled out, the mounting base 140 moves toward the ground via a sliding motion while in close contact with the rotating assist plate 110, and the mounting base 140 and the rotating assist plate 110 separate from each other by disengaging from the end of the cylinder rod 121, thereby completing the loading and unloading process.

[0008] The rotation assist plate 110 according to one embodiment of the present invention may include a base plate 111 disposed at the rear of the bottom surface of the loading box, a seating rod 112 disposed above the base plate 111 on which the mounting base 140 sits, and engaging means 113 which are located above the base plate 111 at a certain distance from the seating rod 112, and which engage one side of the mounting base 140 when the mounting base 140 is seated on the seating rod 112.

[0009] The folding frame 130 according to one embodiment of the present invention comprises a lower frame 131, an upper frame 132 rotatably hinged to the lower frame 131 on one side, a folding cylinder 133 connected between the lower frame 131 and the upper frame 132 and controlling the rotation of the upper frame 132 via hydraulics, an upper fixed frame rotatably hinged to the upper frame 132 on one side and in close contact with the upper surface of the electric bus, and an upper fixed frame 134 connected between the upper frame 132 and the upper fixed frame 134 and controlling the rotation of the upper The system may also include an upper fixing cylinder 135 that controls the rotation of the fixed frame 134, a lower fixing frame 136 that is rotatably hinged to the lower frame 131 on one side and is in close contact with the lower surface of the electric bus, a lower fixing cylinder 137 that is connected between the lower frame 131 and the lower fixing frame 136 and controls the rotation of the lower fixing frame 136 via hydraulics, and a piercing cylinder 138 that is positioned at the end of the upper fixing frame 134 and pushes the fire extinguishing water spraying lance 150, which is located on the upper part of the electric bus, toward the battery.

[0010] The folding cylinder 133, upper fixed cylinder 135, lower fixed cylinder 137, and piercing cylinder 138 according to one embodiment of the present invention may be hydraulically controlled by being connected via a hydraulic supply line to a hydraulic pump 200 located on one side of the transport vehicle.

[0011] According to one embodiment of the present invention, the base 140 is positioned on one side of the lower frame 131, has a certain length, and may slide along the seating rod 112 while seated on the seating rod 112.

[0012] The stationary base 140 according to one embodiment of the present invention may include a rotating locking step 141 that, when seated on the seating round bar 112 during loading and unloading, is locked on the seating round bar 112 and rotates at a 90-degree angle, and a rotating limiting round bar 142 that, when loaded, is engaged with the engaging means 113 to restrict rotation.

[0013] The fire extinguishing water spraying lance 150 according to one embodiment of the present invention may be connected to a fire extinguishing water pump 300 located on one side of the fire extinguishing water tank via a fire extinguishing water supply line to receive fire extinguishing water.

[0014] The fire-extinguishing water spraying lance 150 according to one embodiment of the present invention includes a lance head 151 that drills into the top of the battery via hydraulic pressure, and a fire-extinguishing water nozzle 152 formed on the side of the body of the fire-extinguishing water spraying lance 150 that sprays the fire-extinguishing water outwards, wherein the lance head 151 may be connected to the body of the fire-extinguishing water spraying lance 150 in a replaceable manner.

[0015] The body of the fire-extinguishing water spraying lance 150 according to one embodiment of the present invention may be formed in multiple stages, with each stage having its own fire-extinguishing water nozzle 152.

[0016] The drilling cylinder 138 and the fire extinguishing water spraying lance 150 according to one embodiment of the present invention may be configured so that their direction can be switched by releasing a bolt from the end of the upper fixing frame 134. [Effects of the Invention]

[0017] The present invention has the advantage that loading and handling of cargo onto transport vehicles can be easily performed via a hydraulic cylinder.

[0018] Furthermore, according to the present invention, the direction of the drilling cylinder and the lance for spraying fire extinguishing water can be easily switched by releasing a bolt, which has the advantage of allowing the fire to be quickly suppressed by hydraulically drilling into the battery located on the side of an overturned electric bus and injecting fire extinguishing water.

[0019] Furthermore, the present invention has the advantage that, while in close contact with the electric bus where the fire has occurred, the fire can be quickly extinguished by hydraulically drilling a hole in the battery located on top of the electric bus and injecting fire-extinguishing water.

[0020] Furthermore, according to the present invention, the volume can be minimized during storage and transport through the foldable structure, and it has the advantage of being easily and conveniently transported to the fire scene. Furthermore, according to the present invention, since the lance for spraying fire extinguishing water does not come loose or separate during the process of drilling into the battery via hydraulics and spraying high-pressure fire extinguishing water into the battery, it has the advantage of being able to stably suppress the fire. [Brief explanation of the drawing]

[0021] [Figure 1] This diagram schematically shows the overall configuration of an electric bus fire suppression device 100 capable of loading and unloading via a hydraulic cylinder, according to one embodiment of the present invention. [Figure 2] This figure shows the electric bus fire suppression device 100, which can be loaded and unloaded via the hydraulic cylinder shown in Figure 1, loaded onto a transport vehicle. [Figure 3] This diagram shows the configuration of the rotation assist plate 110 in more detail. [Figure 4] This diagram shows the configuration of the folding frame 130 in more detail. [Figure 5] This diagram shows the state in which the upper frame 132 rotates away from the lower frame 131 by the folding cylinder 133. [Figure 6] FIG. 1 is a diagram showing a state in which an upper fixing frame 134 and a lower fixing frame 136 are rotated from an upper frame 132 and a lower frame 131 by an upper fixing cylinder 135 and a lower fixing cylinder 137, respectively, and are in close contact with the upper and lower portions of an electric bus. [Figure 7] FIG. 4 is a diagram showing a state in which a lance 150 for extinguishing water injection pierces a battery by being inserted into the battery in the inner direction by a piercing cylinder 138. [Figure 8] FIG. 7 is a diagram showing the configuration of a mounting base 140 in more detail. [Figure 9] FIG. 10 is a diagram showing a process in which a folding frame 130 is loaded and unloaded from a transport vehicle through the extension of a cylinder rod 121. [Figure 10] FIG. 13 is a diagram showing the lance 150 for extinguishing water injection in more detail. [Figure 11] FIG. 16 is a diagram showing a state in which a lance 150 for extinguishing water injection pierces a battery by being inserted into the battery in the inner direction from the side of an overturned electric bus.

BEST MODE FOR CARRYING OUT THE INVENTION

[0022] Hereinafter, specific contents for carrying out the present invention will be described in detail with reference to the accompanying drawings. However, in the following description, specific descriptions of functions or configurations that are widely known may be omitted if they may unnecessarily obscure the gist of the present invention.

[0023] FIG. 1 schematically shows an overall configuration of an electric bus fire suppression device 100 capable of loading and unloading through a hydraulic cylinder according to an embodiment of the present invention, and FIG. 2 shows a state in which the electric bus fire suppression device 100 capable of loading and unloading through the hydraulic cylinder shown in FIG. 1 is loaded on a transport vehicle.

[0024] Referring to Figures 1 and 2, an electric bus fire suppression device 100, which can be loaded and unloaded via a hydraulic cylinder according to one embodiment of the present invention, may broadly include a rotating assist plate 110, a hydraulic cylinder 120, a foldable frame 130, a mounting base 140, and a lance 150 for spraying fire extinguishing water.

[0025] Here, a fire extinguishing water tank can be installed in the loading compartment of a transport vehicle (for example, a truck).

[0026] The fire extinguishing water tank is a tank that stores fire extinguishing water to suppress fires that originate from the batteries of electric buses, and regardless of its storage capacity, it can be loaded onto a transport vehicle and transported to the fire scene together with the foldable frame 130.

[0027] Such fire extinguishing water tanks can be modified in size and volume according to the loading capacity of the transport vehicle; for example, a tank with a capacity of 1 ton can be used.

[0028] In one embodiment, a fire water pump 300 can be positioned on one side of the fire water tank. The fire water pump 300 supplies the fire water contained in the fire water tank to a fire water spraying lance 150, generating sufficient water pressure to strongly spray the fire water into the battery located above the electric bus.

[0029] In one embodiment, the fire water tank, the fire water pump 300, and the fire water spraying lance 150 can be connected to each other via a fire water supply line. The fire water supply line can be formed to be long enough (for example, 10 m) to reach the fire water spraying lance 150 from the fire water tank.

[0030] In one embodiment, the fire extinguishing water supply line may be made of a heat-dissipating material to prevent it from melting in the high-temperature heat generated from the battery located above the electric bus, or it may be coated with a heat-dissipating coating on the outside.

[0031] Furthermore, although not shown in the drawings, in one embodiment, the fire extinguishing water supply line can be transported in a circularly wound state via a winch or the like, and can be automatically unwound when the foldable frame 130, described later, is separated from the transport vehicle and transported to the electric bus.

[0032] The rotation assist plate 110 is installed at the rear of the loading box of the transport vehicle and serves to secure the foldable frame 130 so that it does not separate during transport via the transport vehicle, and also serves as a guide for the stationary platform 140 to sit and rotate during loading and unloading. This will be explained next.

[0033] Figure 3 is a diagram that shows the configuration of the rotation assist plate 110 in more detail.

[0034] Referring to Figure 3, the rotation assist plate 110 may include a base plate 111 positioned at the rear of the bottom surface of the loading box, a seating rod 112 positioned above the base plate 111 on which the mounting base 140 sits, and an engaging means 113 positioned above the base plate 111 at a certain distance from the seating rod 112, for engaging one side of the mounting base 140 when the mounting base 140 is seated on the seating rod 112.

[0035] The base plate 111 can be securely installed at the rear of the bottom surface of the loading box of the transport vehicle, and the seating rod 112 and engaging means 113 can be arranged at regular intervals on the upper side.

[0036] In this case, the seating bar 112 can serve as a seating space for the mounting base 140 (described later) to sit on, and as a pivot axis for the mounting base 140 to rotate at a 90-degree angle during the loading or unloading process.

[0037] The engaging means 113 is formed in an "L" shape in cross-section so that one side of the mounting base 140, which will be described later, can engage with it. When the folding frame 130 is loaded onto the transport vehicle, the mounting base 140 is engaged with the engaging means 113, allowing it to remain firmly fixed without being separated from the rotation assist plate 110. This will be described later.

[0038] The foldable frame 130 can be transported to the fire scene while mounted on a transport vehicle, then separated from the transport vehicle and attached to the electric bus. Essentially, it can be kept folded and then unfolded via hydraulics. This will be explained in more detail next.

[0039] Figure 4 is a diagram that shows the configuration of the foldable frame 130 in more detail.

[0040] Referring to Figure 4, the foldable frame 130 can be broadly divided into a lower frame 131 that sits on the bottom surface and an upper frame 132 that is rotatably connected to the lower frame 131 by a hinge.

[0041] More specifically, the lower frame 131 sits on the bottom surface and supports the folding frame 130 itself to prevent it from tipping over, and multiple wheels can be placed on the underside of the lower frame 131 to facilitate movement.

[0042] In one embodiment, a hinge is positioned above the lower frame 131 for the upper frame 132 to rotate, allowing the upper frame 132 to rotate away from the lower frame 131 via the hinge and stand upright upwards. This is to minimize the volume by folding the upper frame 132 during normal operation or when transporting the foldable frame 130, and to raise the upper frame 132 by the height of the electric bus when preparing to suppress a fire.

[0043] The upper frame 132 is either shorter in length than the lower frame 131 described above, or has a length corresponding to the length of the lower frame 131, and has a structure that allows it to rotate upward from the lower frame 131 via a hinge to be extended, or rotate downward to be folded.

[0044] Such an upper frame 132 can be rotated hydraulically from the lower frame 131 via a folding cylinder 133, which will be described next.

[0045] Figure 5 shows the state in which the upper frame 132 rotates away from the lower frame 131 by the folding cylinder 133.

[0046] Referring to Figure 5, the lower frame 131 and the upper frame 132 are connected to each other via hinges, and the lower frame 131 and the upper frame 132 are connected via a folding cylinder 133. A hydraulic cylinder is applied to the folding cylinder 133, and via hydraulics, the length of the cylinder can be reduced to pull the upper frame 132 upright, or the length of the cylinder can be extended to push the upper frame 132 and fold it downward. Such a folding cylinder 133 can be connected via a hydraulic supply line to a hydraulic pump 200 located on one side of the transport vehicle and can be controlled via hydraulics.

[0047] Here, the hydraulic pump 200 is connected to the folding cylinder 133 via a high-pressure hydraulic supply line, and by adjusting the length of the cylinder rod of the folding cylinder 133 via hydraulics, the upper frame 132 can be pulled upright or pushed down to fold it.

[0048] An upper fixed frame 134 is positioned above the upper frame 132, with one side of the fixed frame 134 being rotatably connected to the upper frame 132 by a hinge, and which is in close contact with the top surface of the electric bus.

[0049] The upper fixing frame 134 can be connected to the upper frame 132 via hinges such that it has a certain length in the forward direction (towards the electric bus) relative to the upper frame 132 in an upright position. The lower surface of the upper fixing frame 134 can be in close contact with the upper surface of the electric bus and can be formed to be long enough to reach the center of the battery located on top of the electric bus.

[0050] Furthermore, the upper fixed frame 134 can rotate vertically from the upper frame 132 via the upper fixed cylinder 135, which will be explained next.

[0051] Figure 6 shows the state in which the upper fixing frame 134 and the lower fixing frame 136 rotate away from the upper frame 132 and the lower frame 131, respectively, by the upper fixing cylinder 135 and the lower fixing cylinder 137, and are in close contact with the upper and lower parts of the electric bus.

[0052] Referring to Figure 6, the upper fixing frame 134 is connected to the upper frame 132 via a hinge, and the upper fixing frame 134 and the upper frame 132 are connected via the upper fixing cylinder 135. The upper fixing cylinder 135 is a hydraulic cylinder, and hydraulically, the length of the cylinder is reduced to pull the upper fixing frame 134 upward and lift it slightly, or the length of the cylinder is extended to push the upper fixing frame 134 downward, thereby making it tightly contact with the top surface of the electric bus.

[0053] In other words, by positioning the upper fixing frame 134 on the top surface of the electric bus with the upper fixing frame 134 slightly raised upward, and then lowering the upper fixing frame 134 downward via the upper fixing cylinder 135, it can be made to adhere tightly to the top surface of the electric bus, thereby preventing the foldable frame 130 from being pushed or moved during the process of pressing and puncturing the battery located on top of the electric bus via the fire extinguishing water spraying lance (described later), or during the spraying of high-pressure fire extinguishing water.

[0054] Such an upper fixed cylinder 135 can be connected via a hydraulic supply line to a hydraulic pump 200 located on one side of the transport vehicle and controlled via hydraulics.

[0055] The hydraulic pump 200 is connected to the upper fixing cylinder 135 via a high-pressure hydraulic supply line, and by adjusting the length of the cylinder rod of the upper fixing cylinder 135 via hydraulic pressure, the upper fixing frame 134 can be pulled up slightly or pushed down so that the lower surface of the upper fixing frame 134 is in close contact with the upper surface of the electric bus.

[0056] Furthermore, a fire-extinguishing water spraying lance 150, described later, can be installed upright at the end of the upper fixing frame 134, facing downwards. Once the upper fixing frame 134 is in close contact with the top surface of the electric bus, the fire-extinguishing water spraying lance 150 can be used hydraulically to puncture the battery located on top of the electric bus, and then spray high-pressure fire-extinguishing water into the battery to suppress the fire.

[0057] Furthermore, the lower fixing frame 136 is connected to the underside of the lower frame 131 via a hinge, and the lower fixing frame 136 and the lower frame 131 are connected via a lower fixing cylinder 137. The lower fixing cylinder 137 is a hydraulic cylinder, and hydraulically, the length of the cylinder is reduced to pull the lower fixing frame 136 and lower its end downwards, or the length of the cylinder is extended to push the lower fixing frame 136 and push its end upwards, thereby making it tightly attached to the underside of the electric bus.

[0058] In other words, after positioning the lower fixing frame 136 on the underside of the electric bus with the lower fixing frame 136 slightly lowered downwards, the lower fixing frame 136 is pushed up via the lower fixing cylinder 137 to make it tightly adhere to the underside of the electric bus. This serves to fix the foldable frame 130 in place so that it is not pushed or moved during the process of pressing and puncturing the battery located on the top of the electric bus via the fire extinguishing water spraying lance 150 (described later) or spraying high-pressure fire extinguishing water.

[0059] Such a lower fixed cylinder 137 can be connected via a hydraulic supply line to a hydraulic pump 200 located on one side of the transport vehicle and controlled via hydraulics.

[0060] In one embodiment, the upper fixing cylinder 135 and the lower fixing cylinder 137 can also be controlled simultaneously. For example, when hydraulic pressure is applied in the hydraulic pump 200 via the hydraulic supply lines connected to the upper fixing cylinder 135 and the lower fixing cylinder 137, the upper fixing frame 134 connected to the upper fixing cylinder 135 is lifted upward, and the lower fixing frame 136 connected to the lower fixing cylinder 137 is lowered downward, thereby spreading the upper fixing frame 134 and the lower fixing frame 136 apart from each other.

[0061] In this state, when the foldable frame 130 is moved to be adjacent to the side of the electric bus where the fire occurred, and the hydraulic direction of the hydraulic pump 200 is switched to the opposite direction, the upper fixing frame 134 connected to the upper fixing cylinder 135 moves downward and into contact with the top surface of the electric bus, and the lower fixing frame 136 connected to the lower fixing cylinder 137 moves upward and into contact with the bottom surface of the electric bus.

[0062] In other words, the upper fixing frame 134 and the lower fixing frame 136 are spread apart and then narrowed relative to each other, so as a result the foldable frame 130 can tighten the upper and lower parts of the electric bus and be securely fixed to the electric bus.

[0063] Furthermore, a drilling cylinder 138 can be positioned at the end of the aforementioned upper fixing frame 134 to push the fire extinguishing water spraying lance 150 (described later) towards the battery located on top of the electric bus and drill into the battery. This will be explained next.

[0064] Figure 7 shows the state in which the fire extinguishing water spraying lance 150 is inserted into the battery by the drilling cylinder 138 to drill into the battery.

[0065] Referring to Figure 7, with the upper fixing frame 134 fully in contact with the upper surface of the electric bus via the upper fixing cylinder 135, the lower end of the fire extinguishing water spraying lance 150, which is positioned upright at the end of the upper fixing frame 134, is in contact with the upper surface of the electric bus.

[0066] In this state, by lowering the fire-extinguishing water spray lance 150 downwards via the piercing cylinder 138, the fire-extinguishing water spray lance 150 is pushed downwards by hydraulic pressure to pierce the battery. Such a piercing cylinder 138 can be connected to a hydraulic pump 200 located on one side of the transport vehicle via a hydraulic supply line and controlled by hydraulics.

[0067] At this time, the hydraulic pressure applied from the hydraulic pump 200 to the drilling cylinder 138 can be sufficient to drill through the fire-fighting water spraying lance 150 into the batteries located on the top surface and inside the electric bus.

[0068] With the battery on top of the electric bus punctured by the hydraulic pressure of the puncture cylinder 138, fire suppression begins when fire extinguishing water is sprayed into the battery through the underside of the fire extinguishing water spray lance 150.

[0069] In one embodiment, a locking rod 131-1 can be positioned on one side of the lower frame 131, more specifically, above the position where the mounting base 140 (described later) is installed, for locking a locking ring 121-1 provided at the end of the cylinder rod 121 of the hydraulic cylinder 120.

[0070] The locking rod 131-1 can be engaged by a locking ring 121-1 provided at the end of the cylinder rod 121 of the hydraulic cylinder 120, and through this engagement, it can become a point that is pulled during the loading process onto a transport vehicle, and conversely, a point that is pushed during the loading process from the transport vehicle.

[0071] The stationary platform 140 is installed on one side of the aforementioned lower frame 131, and can slide along the seating bar 112 when performing cargo handling while seated on the seating bar 112. Next, this will be explained in more detail.

[0072] Figure 8 is a diagram showing the configuration of the stationary base 140 in more detail, Figure 9 is a diagram showing the process of loading the foldable frame 130 from the transport vehicle via the extension of the cylinder rod 121, and Figure 9 is a diagram showing the process of loading the foldable frame 130 onto the transport vehicle via the retraction of the cylinder rod 121.

[0073] Referring to Figure 8, the mounting base 140 can be positioned below the locking round bar 131-1 in the lower frame 131.

[0074] Such a stationary base 140 can be seated on one side by a seating rod 112 of a rotating assist plate 110, and as shown in Figure 9, when the cylinder rod 121 is pulled out by hydraulic pressure, the locking ring 121-1 provided at the end of the cylinder rod 121 pushes the locking rod 131-1, and the stationary base 140 is pushed toward the rear of the transport vehicle while seated on the seating rod 112.

[0075] Furthermore, a rotating locking step 141 is formed on one side of the base 140 so that when the base is seated on the seating rod 112 and slides along the seating rod 112, that side is locked to the seating rod 112 and rotates at a 90-degree angle.

[0076] The rotation locking step 141 has a structure that locks to the seating round bar 112 when the base 140 is seated on the seating round bar 112 and pushed to its maximum extent. At this time, the load of the folding frame 130 causes the base 140 to rotate naturally at a 90-degree angle with the seating round bar 112 as the rotating side.

[0077] At this time, since the locking ring 121-1 provided at the end of the cylinder rod 121 is engaged with the locking round bar 131-1, the folding frame 130 does not rotate abruptly, but rather rotates gradually at a 90-degree angle as its lower side approaches the ground.

[0078] After the rotation is complete, the locking ring 121-1 is separated from the locking rod 131-1, thereby completing the loading and unloading of the folding frame 130.

[0079] Conversely, when loading the foldable frame 130 onto a transport vehicle, with the lower frame 131 positioned adjacent to the rear of the transport vehicle, and the locking ring 121-1 engaged with the locking rod 131-1, the cylinder rod 121 of the hydraulic cylinder 120 is retracted, causing the locking ring 121-1 to pull the locking rod 131-1, and the stationary base 140 rotates upward again at a 90-degree angle with the rotating locking step 141 locked to the seating rod 112.

[0080] Furthermore, as the locking ring 121-1 continues to pull the locking rod 131-1, the base 140 slides inward towards the loading box of the transport vehicle while seated on the seating rod 112.

[0081] In this case, a rotation-restricting round bar 142 can be placed on one side of the mounting base 140 so as to be engaged with the engaging means 113 to restrict rotation.

[0082] The rotation-restricting round bar 142 is naturally engaged with the engaging means 113, which has an "L" shaped cross-section, as the stationary base 140 slides along while seated on the seating round bar 112.

[0083] At this time, since the locking ring 121-1 remains engaged with the locking rod 131-1, the mounting base 140 will not separate from or rotate on the rotation assist plate 110, and will remain firmly fixed as long as the locking ring 121-1 does not separate from the locking rod 131-1.

[0084] The fire-extinguishing water spraying lance 150 can be installed vertically at the end of the upper fixed frame 134 of the aforementioned foldable frame 130, and the aforementioned drilling cylinder 138 is positioned on the upper side. When the drilling cylinder 138 is operated by hydraulic pressure applied from the hydraulic pump 200, it can descend downwards, forcibly drill into the battery located at the top of the electric bus, and then spray fire-extinguishing water into the interior. This will be explained next.

[0085] Figure 10 is a diagram that shows the fire extinguishing water spraying lance 150 in more detail.

[0086] Referring to Figure 10, the fire-extinguishing water spraying lance 150 may include a lance head 151 that penetrates the top of the battery and goes through its interior via hydraulic pressure, and a fire-extinguishing water nozzle 152 formed on the side of the body of the fire-extinguishing water spraying lance 150 that sprays fire-extinguishing water outwards.

[0087] More specifically, the lance head 151 has a shape in which the lower end protrudes sharply, and can be made of a material (for example, an alloy) that has sufficient strength to easily penetrate not only the upper outer wall of the electric bus but also the top of the battery via the hydraulic pressure of the hydraulic pump 200. In one embodiment, the lance head 151 can be interchangeably connected to the fire water spraying lance 150, so that when the end of the lance head 151 becomes blunt, or when it is damaged or crushed in some way and cannot properly penetrate the top of the battery, resulting in a decrease in function, it may be configured to be replaced with a new lance head 151 from the fire water spraying lance 150.

[0088] Furthermore, a fire water supply line can be connected to the side of the main body of the fire water spraying lance 150, and this fire water supply line can be connected to the fire water pump 300 which is connected to the aforementioned fire water tank. Therefore, the water pressure applied by the fire water pump 300 can forcefully spray the fire water through the fire water nozzle 152.

[0089] In this case, as shown in Figure 10(b), the body of the fire extinguishing water spray lance 150 can be formed in multiple stages, and a fire extinguishing water nozzle 152 can be arranged on the side of each stage.

[0090] Furthermore, an internal supply line can be formed inside the fire extinguishing water spraying lance 150 for injecting fire extinguishing water supplied via a fire extinguishing water supply line.

[0091] Furthermore, in one embodiment, the drilling cylinder 138 and the fire extinguishing water spraying lance 150 are configured so that their direction can be switched by releasing bolts from the end of the upper fixing frame 134. Therefore, if the battery of the electric bus to be drilled is located on the side rather than the top due to the electric bus overturning, the battery of the electric bus can be drilled from the side. This will be explained next.

[0092] Figure 11 shows the state in which a fire-fighting water spraying lance 150 is inserted into the battery from the side of an overturned electric bus to puncture the battery.

[0093] Referring to Figure 11, if an electric bus caught fire overturns and the battery faces to the side instead of upward, the direction of the drilling cylinder 138 and the fire-extinguishing water spray lance 150 can be switched by 180 degrees via the release of the bolts at the end of the upper fixing frame 134, so that the fire-extinguishing water spray lance 150 faces the battery of the electric bus. In this state, the fire-extinguishing water spray lance 150 is pushed downward by hydraulic pressure, piercing the battery, and with the battery located on the side of the electric bus pierced by hydraulic pressure, fire-extinguishing water is sprayed into the inside of the battery through the underside of the fire-extinguishing water spray lance 150, initiating fire suppression.

[0094] While the present invention has been described in relation to several embodiments, various modifications and alterations can be made without departing from the scope of the invention as understandable to a person ordinary in the art in which the invention pertains. Furthermore, such modifications and alterations should be understood to fall within the scope of the claims appended herein. [Explanation of Symbols]

[0095] 100 Electric bus fire suppression device 110 Rotation Assist Plate 111 Base Plate 112 Round bar for seating 113 Engaging means 120 Hydraulic Cylinder 121 Cylinder rod 121-1 Locking ring 130 Folding Frame 131 Lower frame 131-1 Locking round bar 132 Upper frame 133 Folding Cylinder 134 Upper fixing frame 135 Upper fixed cylinder 136 Lower fixing frame 137 Lower fixed cylinder 138 Drilling cylinder 140 Stand 141 Locking step for rotation 142 Rotation-limiting round bar 150 Firefighting water spray lance 151 Lancehead 152 Fire extinguishing water nozzle 200 Hydraulic pump 300 Fire water pump

Claims

1. A rotating assist plate (110) is installed at the rear of the loading box of the transport vehicle, A hydraulic cylinder (120) is positioned in the loading box of the transport vehicle, A folding frame (130) that is extended or folded via hydraulics, A mounting base (140) is positioned on one side of the foldable frame (130) and configured such that one side engages with the end of a cylinder rod (121) that is pulled out from the hydraulic cylinder (120), The folding frame (130) includes a fire-extinguishing water spraying lance (150) which, after drilling a hole in the battery located on top of the electric bus, sprays fire-extinguishing water supplied from a fire-extinguishing water tank mounted on the transport vehicle into the battery, The mounting base (140) is engaged with the end of the cylinder rod (121) and remains seated on the rotating assist plate (110) while being loaded onto the transport vehicle. An electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder, wherein when the cylinder rod (121) is pulled out, the base (140) moves toward the ground via a sliding motion while in close contact with the rotating assist plate (110), and the base (140) and the rotating assist plate (110) separate from each other by disengaging from the end of the cylinder rod (121), thereby completing the loading and unloading process.

2. The aforementioned rotation assist plate (110) is A base plate (111) is positioned at the rear of the bottom surface of the aforementioned loading box, A seating round bar (112) is positioned above the base plate (111) on which the mounting base (140) sits, An electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder, comprising: a seating rod (112) positioned at a certain distance above the base plate (111); and an engaging means (113) for engaging one side of the mounting base (140) when the mounting base (140) is seated on the seating rod (112).

3. The aforementioned folding frame (130) Lower frame (131) and An upper frame (132) is connected to the lower frame (131) on one side by a hinge so as to be rotatable, A folding cylinder (133) is connected between the lower frame (131) and the upper frame (132) and controls the rotation of the upper frame (132) via hydraulics, An upper fixed frame (134) is connected to the upper frame (132) by a hinge on one side so as to be rotatable, and is in close contact with the upper surface of the electric bus. An upper fixing cylinder (135) is connected between the upper frame (132) and the upper fixing frame (134) and controls the rotation of the upper fixing frame (134) via hydraulics, A lower fixing frame (136) is connected to the lower frame (131) by a hinge on one side so as to be rotatable, and is in close contact with the lower surface of the electric bus. A lower fixing cylinder (137) is connected between the lower frame (131) and the lower fixing frame (136) and controls the rotation of the lower fixing frame (136) via hydraulics, An electric bus fire suppression device that can be loaded and unloaded via a hydraulic cylinder, according to claim 2, further comprising: a drilling cylinder (138) positioned at the end of the upper fixed frame (134) and pushing the fire extinguishing water spraying lance (150) located on the upper part of the electric bus toward the battery.

4. The folding cylinder (133), upper fixed cylinder (135), lower fixed cylinder (137), and perforating cylinder (138) are, An electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder according to claim 3, which is connected via a hydraulic supply line to a hydraulic pump (200) located on one side of the transport vehicle and controlled by hydraulics.

5. The aforementioned mounting base (140) is An electric bus fire suppression device that is positioned on one side of the lower frame (131), has a certain length, and slides along the seating rod (112) while seated on the seating rod (112), and is capable of loading and unloading via a hydraulic cylinder as described in claim 3.

6. The aforementioned mounting base (140) is During loading and unloading, in the process of sliding while seated on the seating rod (112), there is a rotating locking step (141) on one side that locks to the seating rod (112) and rotates at a 90-degree angle, An electric bus fire suppression device capable of loading and handling cargo via a hydraulic cylinder, comprising a rotation-restricting round bar (142) that engages with the engaging means (113) to restrict rotation during loading.

7. The aforementioned lance (150) for spraying fire extinguishing water is An electric bus fire suppression device that can be loaded and unloaded via a hydraulic cylinder, as described in claim 1, which receives fire extinguishing water by being connected to a fire extinguishing water pump (300) located on one side of the fire extinguishing water tank via a fire extinguishing water supply line.

8. The aforementioned lance (150) for spraying fire extinguishing water is A lance head (151) that drills the upper part of the battery via hydraulic pressure, The fire extinguishing water spraying lance (150) includes a fire extinguishing water nozzle (152) formed on the side of the main body of the fire extinguishing water spraying lance (150) that sprays the fire extinguishing water outwards, The electric bus fire suppression device, which can be loaded and unloaded via a hydraulic cylinder, is configured such that the lance head (151) is interchangeable with the main body of the fire extinguishing water spraying lance (150).

9. The body of the fire-extinguishing water spraying lance (150) is formed in multiple stages, with the fire-extinguishing water nozzle (152) arranged at each stage, wherein the electric bus fire suppression device is loadable and unloadable via a hydraulic cylinder as described in claim 8.

10. The drilling cylinder (138) and the fire extinguishing water spraying lance (150) are An electric bus fire suppression device capable of loading and unloading via a hydraulic cylinder, as described in claim 3, configured to allow switching of direction by releasing bolts from the end of the upper fixing frame (134).

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