Electric vehicle fire spread prevention device

Abstract

The present invention relates to an electric vehicle fire spread prevention device and, more specifically, to an electric vehicle fire spread prevention device comprising: a pair of base frames spaced apart from each other; a fixed support rib located between the pair of base frames and having both ends in the longitudinal direction connected to the pair of base frames; a rotating support rib located between the pair of base frames and having both ends in the longitudinal direction rotatably connected to the front side of the base frame; and a driving means including a pulley, which is connected to the rear side of the base frame, and a rope, which is wound on the pulley in a state in which the front side of the base frame is connected to the rotating support rib.

Description

Electric vehicle fire spread prevention device

[0001] The present invention relates to an electric vehicle fire spread prevention device.

[0002]

[0003] An electric vehicle is equipped with a battery pack in the vehicle body (see Registered Patent No. 10-2364202 (hereinafter Prior Art 1)). The battery pack is exposed to the risk of fire in various environments, such as during charging or impact.

[0004] Conventional technology, specifically registered patent No. 10-2591815 (hereinafter referred to as Conventional Technology 2), relates to a fire detection and automatic fire extinguishing system for an electric vehicle charging station. More specifically, the electric vehicle charging station (100) includes one or more detection sensors (S) among a temperature sensor (S1) that detects a temperature rise and sends a detection signal when a fire occurs, a flame sensor (S2) that detects a flame and sends a detection signal, and a smoke sensor (S3) that detects smoke and sends a detection signal. The control unit (30) receives a signal sent from the fire recognition unit (40), and when it is determined to be a fire, it sends a signal to the fire extinguishing agent spraying device (20) of the fire extinguishing device unit (8) under the control of the control unit (30) to spray the fire extinguishing agent stored in the box-type storage tank (10). This allows the fire extinguishing agent to be immediately discharged toward the point of ignition when a fire occurs at the electric vehicle charging station, thereby enabling a more effective response for initial fire suppression.

[0005] However, if a fire occurs in a cell of an electric vehicle battery pack due to reasons such as physical impact, thermal runaway transfer occurs sequentially to adjacent cells, causing adjacent cells to explode and fire to occur, which makes it very difficult to extinguish the fire in a short period of time.

[0006] In addition, large-capacity batteries are used in electric vehicles to enable long-term use on a single charge. In the case of medium-sized electric vehicles, they store enough electricity to power a typical household for two days. If a fire occurs in such a large-capacity battery, the temperature rises to such a high level that it is difficult to control, causing the fire to spread to facilities in the affected area and resulting in significant damage.

[0007] In addition, as mentioned above, fires in electric vehicles mainly occur in batteries installed in a sealed form, and there is a problem in that it is difficult to spray fire extinguishing agents or water at the point of fire due to the emission of toxic and flammable gases and the generation of high temperatures.

[0008] Therefore, there is a need for technology that goes beyond merely spraying fire extinguishing agents or water in the event of a fire in an electric vehicle battery pack; it isolates the burning electric vehicle from the outside to suppress the spread of fire to surrounding vehicles or facilities, and minimizes the leakage of toxic gases generated during the fire, thereby facilitating access for firefighting equipment and personnel to the fire site.

[0009]

[0010] The objective of the present invention is to suppress the spread of fire by isolating the electric vehicle where the fire occurred from the outside when an electric vehicle fire occurs, and to allow devices and personnel for fire suppression to easily access the electric vehicle where the fire occurred.

[0011] In addition, the present invention has the purpose of excellent space utilization by being configured to be maintained in a folded state during normal operation and unfoldable when necessary.

[0012] In addition, the present invention has the purpose of facilitating folding or unfolding.

[0013]

[0014] The present invention for solving the above problem comprises: a pair of base frames spaced apart from each other; a fixed support member positioned between the pair of base frames, with both longitudinal ends connected to the pair of base frames; a pivotal support member positioned between the pair of base frames, with both longitudinal ends rotatably connected to the front side of the base frames; and a driving means comprising a winch connected to the rear side of the base frames and a rope wound around the winch with its front end connected to the pivotal support member.

[0015] Additionally, the driving means may further include a fixing means for limiting the rotation of the winch drum on which the rope is wound.

[0016] In addition, it may further include a penetrating member provided on the upper part of the fixed support member and through which the rope passes.

[0017] Additionally, it may further include an additional pivoting support member positioned between the fixed support member and the pivoting support member, wherein the longitudinal ends are rotatably connected to each of the pair of base frames.

[0018] Additionally, it may further include a rotation angle adjustment means provided on a pair of base frames and the additional rotation support member, which controls the rotation angle of the additional rotation support member so that the rotation support member and the additional rotation support member are spaced apart when the rotation support member is placed on the floor.

[0019] Additionally, it may further include an additional fixed support member positioned between a pair of base frames, with both longitudinal ends connected to each of the pair of base frames, positioned behind the fixed support member, and having a height smaller than that of the fixed support member.

[0020] Additionally, it may further include a frame member comprising a connecting frame connecting the rear ends of a pair of base frames, a pair of legs extending upward from the upper part of the connecting frame, a gripping frame connecting the upper ends of the pair of legs, a moving wheel provided at the lower part of a pair of base frames, and an installation frame provided at the upper part of the connecting frame on which the winch is installed.

[0021] Additionally, the device may further include: a fire extinguishing cloth that wraps around the fixed support bar, with its rear side connected to a pair of base frames and the connecting frame and its front side connected to the rotating support bar; a sprinkler nozzle provided on one or more of the frame member, the fixed support bar, and the rotating support bar, through which fire extinguishing water is discharged; a detection means connected to the frame member and detecting a fire in an electric vehicle; and a control unit that, upon receiving a fire detection signal from the detection means, generates a supply signal to cause the supply device to supply fire extinguishing water to the sprinkler nozzle and transmits the signal to the supply device.

[0022] Additionally, it may further include a skeletal frame comprising a rear frame that is connected to the frame member and disposed on the floor and, when viewed in a planar view, surrounds a pair of base frames and the connecting frame, and a front frame disposed to surround the outer side of the pivot support member and having both ends rotatably coupled to both ends of the rear frame, and a watertight means comprising a packing member provided at the bottom of the skeletal frame.

[0023] Additionally, the skeletal frame may include a first member having a length in a first direction, a second member having a length in a second direction orthogonal to the first direction, a horizontal connecting member connecting adjacent first members, and a vertical connecting member connecting the first member and the second member.

[0024] Additionally, the horizontal connecting member may include a pair of watertight members and a first body disposed between the pair of watertight members and connected to the pair of watertight members, and the vertical connecting member may include a second body, a first watertight portion protruding from the second body toward the first member, a second watertight portion protruding from the second body toward the second member, a first groove formed by recessing into the first watertight portion so that the end of the first member is inserted, and a second groove formed by recessing into the second watertight portion so that the end of the second member is inserted.

[0025]

[0026] According to an embodiment of the present invention, when an electric vehicle fire occurs, the electric vehicle where the fire occurred is isolated from the outside to suppress the spread of the fire, and the device and personnel for fire suppression can easily access the electric vehicle where the fire occurred.

[0027] In addition, the present invention is configured to remain in a folded state during normal operation and to be unfolded when necessary, thereby providing the effect of excellent space utilization.

[0028] In addition, the present invention has the effect of facilitating folding or unfolding.

[0029]

[0030] FIG. 1 is a drawing illustrating a folded state of an electric vehicle fire spread prevention device according to one embodiment of the present invention.

[0031] Figure 2 is a diagram illustrating the deployed state of the electric vehicle fire spread prevention device of Figure 1.

[0032] Figure 3 is a real photograph of the electric vehicle fire spread prevention device described in Figure 1.

[0033] FIG. 4 is a drawing for explaining the frame member and the driving means.

[0034] Figure 5 is a plan view of the watertight means.

[0035] Fig. 6 is a side view of the watertight means.

[0036] FIG. 7 is a drawing for illustrating additional embodiments of the present invention.

[0037]

[0038] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0039] Throughout the entire specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected (including electrical connections)," but also cases where they are "indirectly connected (including electrical connections)" with other elements interposed between them.

[0040] FIG. 1 is a drawing illustrating a folded state of an electric vehicle fire spread prevention device according to an embodiment of the present invention. FIG. 2 is a drawing illustrating an unfolded state of the electric vehicle fire spread prevention device of FIG. 1. FIG. 3 is a photograph of the actual electric vehicle fire spread prevention device described in FIG. 1. FIG. 4 is a drawing illustrating a frame member and a driving means.

[0041] An electric vehicle fire spread prevention device (P) according to one embodiment of the present invention is intended to block the electric vehicle where a fire has occurred from the outside, and for convenience of explanation, it will be referred to as "the device" below.

[0042] Referring to FIGS. 1 and 2, the device (electric vehicle fire spread prevention device (P)) may include a base frame (11), a fixed support member (2), a rotating support member (3), and a driving means (4).

[0043] A pair of base frames (11) may be provided. A pair of base frames (11) may be spaced apart from each other.

[0044] The base frame (11) may have a front-to-rear length, and when viewed in a plane, the base frame (11) may be spaced apart from each other along a direction orthogonal to the front-to-rear direction.

[0045] Here, the front and rear directions may be left and right directions with respect to Fig. 1. The front is the right direction with respect to Fig. 1, and the rear is the opposite direction to the front, which may be the left direction with respect to Fig. 1. This will be applied in the following description.

[0046] The fixed support member (2) is positioned between a pair of base frames (11), and can be fixed by connecting both ends in the longitudinal direction to the rear side of each of the pair of base frames (11).

[0047] The above fixed support member (2) may have a frame shape such as an arch shape with an open bottom or a polygon shape with an open bottom when viewed from the front, and a fire extinguishing cloth (8) of the device described later may be connected to the outside (see FIG. 3).

[0048] Here, the outer side refers to the outer side of the space formed by the fire extinguisher (8), and the inner side refers to the side of the space formed by the fire extinguisher (8) where the electric vehicle is accommodated. The same shall apply in the following description.

[0049] Accordingly, both ends of the fixed support member (2) represent a pair of lower ends, and the pair of lower ends can be connected to and fixed to each of the pair of base frames (11).

[0050] For example, the above fixed support members (2) may be spaced apart along the front and rear directions.

[0051] Referring to FIGS. 1 and 2, the pivot support member (3) is positioned between a pair of base frames (11), and both ends in the longitudinal direction can be pivotably connected to the front side of the base frame (11).

[0052] The above-mentioned pivot support member (3) is pivotally connected to the front side of the base frame (11) and can be positioned further forward than the above-mentioned fixed support member (2).

[0053] The above-mentioned pivot support member (3) may also be an arch-shaped or polygonal frame with an open lower section when viewed from the front (based on the state in which the device is open at the front as shown in FIG. 1 and FIG. 3 above (hereinafter referred to as the reference state)).

[0054] Accordingly, both ends (bottoms) of the pivot support member (3) can each be pivotably connected to a pair of base frames (11).

[0055] Referring to FIG. 3, the device may include a fire extinguisher (8) that wraps around the outer side of the fixed support member (2), with the rear side connected to a pair of base frames (11) and a connecting frame (12) described later, and the front side connected to and fixed to the pivoting support member (3).

[0056] When the rotating support member (3) rotates to move closer to the fixed support member (2) as in FIGS. 1 and 3, the front side of the fire extinguisher (8) is folded, and conversely, when the rotating support member (3) rotates to move away from the fixed support member (2) as in FIGS. 2, the fire extinguisher (8) is unfolded so that the inner space formed by the fire extinguisher (8) and the outside are blocked.

[0057] Referring to FIGS. 1 and 2, the driving means (4) may include a winch (41) connected to the rear side of the base frame (11) and a rope (42) wound around the winch (41) with its front side connected to and fixed to the pivot support member (3).

[0058] Referring to FIGS. 1 and 4, the winch (41) may include a drum (411) on which the rope (42) is wound. When the drum (411) is rotated in one direction, the rope (42) is wound onto the drum (411), and the device may be rotated so that the upper part of the rotating support member (3) (relative to the reference state) comes closer to the upper part of the fixed support member (2), thereby taking on the shape shown in FIGS. 1 and 3.

[0059] Conversely, when the drum (411) is rotated in a reverse direction to unwind the rope (42), the device may rotate so that the upper part of the rotating support member (3) (based on the reference state) moves away from the upper part of the fixed support member (2), thereby taking on the shape shown in FIG. 2.

[0060] Therefore, the device can open or close the front side by rotating the drum (411) of the winch (41) without the user having to directly grip and rotate the pivot support bar (3).

[0061] This has the advantage that, in particular, a short user does not need to directly rotate the pivot support member (3) by gripping the upper part of the pivot support member (3) (the center of the pivot support member (3) based on the above reference state).

[0062] In addition, when the rotating support bar (3) is rotated from the inside of the device, there is a problem that it is difficult for the user to exit from the inside in the case shown in FIG. 2. Also, on the outside of the device, the fire extinguisher (8) covers the rotating support bar (3), so there is a problem that it is cumbersome to rotate the rotating support bar (3). At this time, by rotating the rotating support bar (3) through the driving means (4), there is an advantage that the rotating support bar (3) can be rotated more conveniently.

[0063] Referring to FIG. 4, the driving means (4) may include a fixing means (43) that limits (controls) the rotation of the winch (41) drum (411) on which the rope (42) is wound.

[0064] For example, the fixing means (43) may include a drum (411) and a fixing pin that penetrates a connecting member connected to the drum (411) and the base frame (11) (connected to the installation frame (16) described later).

[0065] The connecting member may be, for example, a bracket of the winch (41).

[0066] The above fixing pin serves to fix the drum (411) to the connecting member, thereby restricting the rotation of the drum (411). When the fixing pin is removed from the drum (411), the connection between the drum (411) and the connecting member is released, allowing the drum (411) to rotate.

[0067] In another exemplary case, the fixing means (43) may include a ratchet gear (431) connected to one of the ends of the drum (411) and rotating together with the drum (411) around the rotation axis of the drum (411), and a ratchet pawl (432) connected to the connecting member and limiting the rotation of the ratchet gear (431). In this case, the fixing means (43) may be of the ratchet type.

[0068] The ratchet pawl (432) can be movably connected to the connecting member through a conventional joint link (e.g., a three-bar link or a four-bar link), and in some cases, it is inserted into the joint groove of the ratchet gear (431) to restrict the rotation of the ratchet gear (431), thereby preventing the rotation of the drum (411), and when the ratchet pawl (432) is disengaged from the groove of the ratchet gear (431) through the joint link, the ratchet gear (431) can rotate.

[0069] The above description of the fixing means (43) is provided as an example and is not limited to the example described above, and may include various configurations as long as the rotation of the drum (411) can be selectively restricted.

[0070] When the drum (411) winds the rope (42) and the upper part of the rotating support member (3) is close to the upper part of the fixed support member (2) (the reference state), the rotating support member (3) can be positioned at an angle such that the upper part is positioned further forward than the lower part.

[0071] Therefore, the above-mentioned pivoting support member (3) can rotate the drum (411) as the rope (42) is released by its own weight.

[0072] At this time, when the fixing means (43) restricts the rotation of the drum (411), the rope (42) is maintained in a state where it is wound around the drum (411), and the rotation support member (3) is maintained in a state where its upper part is close to the upper part of the fixing support member (2).

[0073] At this time, if the fixing means (43) does not restrict the rotation of the drum (411) (e.g., release of the fixing pin, or release of the connection between the ratchet pawl (432) and the ratchet gear (431)), the upper part of the rotation support member (3) moves downward due to its own weight, pulling the rope (42) forward, and the drum (411) rotates and unwinds the rope (42).

[0074] Therefore, the user can block the external and internal spaces by simply taking measures so that the fixing means (43) does not restrict the rotation of the drum (411) without the hassle of rotating the drum (411).

[0075] When the fire extinguisher (8) blocks the inner space where the electric vehicle is placed and the outer space as shown in Fig. 2, even if a fire occurs in the electric vehicle, heat is prevented from moving to the outside, thereby preventing the fire from spreading to other vehicles, and the outflow of toxic gases is prevented, which helps fire extinguishing devices or fire extinguishing personnel move to the fire source.

[0076] Figure 5 is a plan view of the watertight means.

[0077] Referring to FIGS. 4 and FIGS. 5, the device may include a frame member (1), and the base frame (11) may be a component included in the frame member (1).

[0078] The frame member (1) may include a connecting frame (12) connecting the rear ends of a pair of base frames (11), a pair of legs (13) extending upward from the upper part of the connecting frame (12), a gripping frame (14) connecting the upper ends of the pair of legs (13), and a moving wheel (15) provided at the lower part of a pair of base frames (11).

[0079] The device can be moved by including the aforementioned moving wheel (15). At this time, since the frame member (1) includes the gripping frame (14) described above, the user can move the device by gripping the gripping frame (14).

[0080] Additionally, the frame member (1) may include an installation frame (16) on which the winch (41) is installed, provided on the upper part of the connecting frame (12).

[0081] The above installation frame (16) may be a frame that extends upward from the upper part of the above connection frame (12).

[0082] The above winch (41) may include a handle connected to the drum (411) to rotate the drum (411).

[0083] In this way, by installing the above winch (41) on the installation frame (16), the user can rotate the drum (411) by gripping the handle with minimal bending of the waist.

[0084] Referring to FIGS. 1 and FIGS. 4, the device may include a penetration member (10a) provided on the upper part of the fixed support member (2) and through which the rope (42) passes.

[0085] The above penetrating member (10a) may, for example, be a tubular body with a hollow formed along the direction of movement of the rope (42).

[0086] In this way, the device can guide the rope (42) to move in the forward and backward directions without moving left and right by including the penetration member (10a). Here, the left and right direction may be a direction perpendicular to the forward and backward direction when viewed on a plane.

[0087] Referring to FIGS. 1 and 2, the device may include an additional fixed support member (7) that is positioned between a pair of base frames (11), with both longitudinal ends connected and fixed to each of the pair of base frames (11), positioned further back than the fixed support member (2), and having a lower height than the fixed support member (2).

[0088] The additional fixed support member (7) may have a length parallel to the vertical direction. A number of additional fixed support members (7) may be provided along the front-rear direction.

[0089] One of the multiple additional fixed support members (7) positioned on the rear side may be shorter in height than another one positioned on the front side.

[0090] The additional fixed support bar (7) prevents the rear side of the fire extinguisher (8) from coming into contact with the electric vehicle, and its height is lower than that of the fixed support bar (2) to secure the upper rear space where the device is placed.

[0091] The above fixing member (10a) may be provided, for example, on the upper portion of the additional fixing support member (7) and the fixing support member (2) (see FIG. 4).

[0092] As another example, the device may include an additional fixing member provided on the upper part of the additional fixing support member (7) through which the rope (42) passes (see FIG. 1 and FIG. 2).

[0093] Referring to FIGS. 1 to 3, an additional pivoting support member (6) may be included, which is positioned between a pair of base frames (11) and has both ends in the longitudinal direction rotatably connected to each of the pair of base frames (11), and is positioned between the fixed support member (2) and the pivoting support member (3).

[0094] The shape of the additional pivot support member (6) above may have a shape corresponding to the pivot support member (3).

[0095] At this time, the device may include a rotation angle adjustment means (100) (see FIG. 7 described later) that controls the rotation angle of the additional rotation support member (6) so that the rotation support member (3) and the additional rotation support member (6) are spaced apart when the rotation support member (3) is placed on the floor (see FIG. 2).

[0096] The above-mentioned rotation angle adjustment means (100) will be explained in more detail in the following description.

[0097] If the above-mentioned fixing means (43) does not restrict the rotation of the drum (411), as described above, the rotational support member (3) pulls the rope (42) forward and downward by its own weight, causing the drum (411) to rotate, and the rotational support member (3) rotates so that it is placed on the floor.

[0098] At this time, the additional rotational support member (6) is also positioned above the rotational support member (3) and rotates together with the rotational support member (3), and when the rotational support member (3) is positioned on the floor by the rotational angle adjustment means (100), the additional rotational support member (6) and the rotational support member (3) are positioned spaced apart from each other.

[0099] The above fire extinguisher (8) is positioned on the outside of the above additional pivot support member (6).

[0100] Therefore, when the above-mentioned pivot support member (3) is placed on the floor (hereinafter installed state), the front space of the inner space is secured to prevent direct contact between the fire extinguisher (8) and the electric vehicle.

[0101] The above additional pivot support member (6) may be provided in multiple numbers, and the pivot angle of the multiple additional pivot support members (6) may be adjusted so that they are spaced apart from each other in the installation state as shown in FIG. 6.

[0102] Referring to FIGS. 1 and 2, the device may include an additional penetrating member (10b) provided on the upper part of the additional pivot support member (6) (based on the reference state) through which the rope (42) passes.

[0103] Although not shown, the device may include a spray nozzle that discharges fire extinguishing water, provided on one or more of the frame member (1), the fixed support member (2), the rotating support member (3), the additional rotating support member (6), and the additional fixed support member (7).

[0104] In addition, the device may include a detection means (e.g., a fire detection sensor) for detecting a fire in an electric vehicle connected to the frame member (1) and disposed in the inner space.

[0105] The device may include a control unit that, upon receiving a fire detection signal from the detection means, generates a supply signal to cause the fire extinguishing water supply device to supply fire extinguishing water to the sprinkler nozzle and transmits the signal to the supply device.

[0106] When the above supply device (e.g., a pump) receives the supply signal from the above detection means, it can supply fire extinguishing water provided in the water tank to the spray nozzle.

[0107] Through this, the device can suppress the spread of fire by spraying fire extinguishing water into the inner space when a fire occurs in an electric vehicle.

[0108] Fig. 6 is a side view of the watertight means.

[0109] Hereinafter, the watertight means (9) will be described with reference to FIGS. 5 and FIGS. 6.

[0110] The device may include the above-mentioned watertight means (9).

[0111] Referring to FIGS. 5 and 6, the watertight means (9) may include a skeletal frame (91) comprising a rear frame (91a) which is connected to the frame member (1) and placed on the floor and surrounds a pair of base frames (11) and the connecting frame (12) when viewed in a planar view, and a front frame (91b) which is arranged to surround the pivot support member (3) and whose ends are rotatably connected to both ends of the rear frame (91a), and a packing member (92) provided at the bottom of the skeletal frame (91).

[0112] Based on the above installation state, the skeletal frame (91) may be a rectangular shape that encloses the base frame (11), the connecting frame (12), and the pivoting support member (3).

[0113] Based on the above installation state, the rear frame (91a) may have a rectangular shape with an open front, and the front frame (91b) may have a rectangular shape with an open rear.

[0114] The above front frame (91b) is exemplarily connected to the above pivot support member (3) and can rotate together with the pivot support member (3).

[0115] The front frame (91b) can be separated from the pivot support member (3) in another exemplary way and rotatably connected to the rear frame (91a).

[0116] The packing member (92) is provided at the bottom of the skeletal frame (91) and is positioned between the skeletal frame (91) and the floor, and can prevent the fire extinguishing water in the inner space from leaking out to the outside.

[0117] The packing member (92) can simultaneously prevent the external leakage of fire extinguishing water and allow fire extinguishing water to accumulate in the inner space, thereby allowing the lower part of the vehicle to be submerged in fire extinguishing water. This can further enhance the fire suppression effect.

[0118] Referring to FIG. 5, the skeletal frame (91) may include a first member (911) having a length in a first direction (the front-back direction) and a second member (912) having a length in a second direction (the left-right direction) that is orthogonal to the first direction, a horizontal connecting member (913) connecting adjacent first members (911), and a vertical connecting member (914) connecting the first member (911) and the second member (912).

[0119] The rear frame (91a) and the front frame (91b) may each be configured by connecting one or more first members (911) and one or more second members (912).

[0120] This enables modular production and offers advantages such as on-site assembly.

[0121] Referring to FIG. 5, the horizontal connecting member (913) may include a pair of watertight members (9131) that have a first direction length and are spaced apart along a second direction, and a first body (9132) that is positioned between the pair of watertight members (9131) and connected to the pair of watertight members (9131).

[0122] The first direction length of the first body (9132) may be smaller than the first direction length of the watertight member (9131).

[0123] A pair of watertight members (9131) and a first body (9132) each form a groove in the front and rear, into which a first member (911) is inserted, so that a pair of first members (911) can be fitted and combined with a horizontal connecting member (913).

[0124] The horizontal connecting member (913) includes the watertight member (9131) (exemplarily made of rubber material) to block the boundary between the first member (911) and the first body (9132), thereby preventing the outflow of fire extinguishing water.

[0125] The vertical connecting member (914) may include a second body (9141), a first sealing part (9142) (exemplarily made of rubber) protruding from the second body (9141) toward the first member (911), a second sealing part (9143) (exemplarily made of rubber) protruding from the second body (9141) toward the second member (912), a first groove part (9144) formed by being recessed toward the second body (9141) so that the end of the first member (911) is inserted from the first sealing part (9142), and a second groove part (9145) formed by being recessed toward the second body (9141) so that the end of the second member (912) is inserted from the second sealing part (9143).

[0126] The first member (911) and the second member (912) can be fitted and combined into the first groove (9144) and the second groove (9145), respectively.

[0127] The first watertight portion (9142) and the second watertight portion (9143) are formed, for example, of a rubber material and cover the boundary between the first member (911) and the second body (9141) and the boundary between the second member (912) and the second body (9141), respectively, thereby preventing the outflow of fire extinguishing water.

[0128] Further embodiments of the present invention will be described below.

[0129] The above watertight means (9) may include a fitting groove formed in the lower part of the skeletal frame (91).

[0130] At this time, the packing member (92) may include a body formed of a rubber material and a fitting projection protruding upward so as to be inserted into a fitting groove on the upper part of the body.

[0131] Referring to FIGS. 1 and 2, the device may include a pivot shaft (10c) that is pivotally coupled to the lower end of the pivot support member (3) and penetrates the base frame (11).

[0132] Additionally, the device may include an additional pivot shaft (10d) that is axially coupled to the lower end of the additional pivot support member (6) and penetrates the base frame (11).

[0133] The pivot axis (10c) and additional pivot axis (10d) may have a length parallel to the left and right directions.

[0134] The above-mentioned pivot shaft (10c) is fixed to the above-mentioned pivot support member (3) and can penetrate the above-mentioned base frame (11), and the above-mentioned pivot support member (3) can rotate as the pivot shaft (10c) rotates and can be thawed around the pivot shaft (10c).

[0135] The additional pivot shaft (10d) is also fixed to the lower end of the additional pivot support member (6) and can penetrate the base frame (11).

[0136] FIG. 7 is a drawing for illustrating additional embodiments of the present invention.

[0137] Hereinafter, the rotation angle adjustment means (100) will be described with reference to FIG. 7.

[0138] The rotation angle adjustment means (100) may include a locking projection (110) protruding from the end of the additional rotation shaft (10d), and a locking tab (120) protruding from the base frame (11) so that the locking projection (110) is caught.

[0139] For example, the catch portion (120) may be provided to protrude outward from the outside of the base frame (11).

[0140] The catch portion (110) may be provided protruding in a normal direction from the outer surface of the additional pivot shaft (10d) so as to catch on the catch projection (120) at an exposed portion positioned outside the base frame (11) on the additional pivot shaft (10d).

[0141] As the additional pivot shaft (10d) rotates, the stopper (110) also rotates, and the stopper (110) gets caught on the stopper (120), thereby restricting the rotation of the additional pivot shaft (10d).

[0142] Therefore, the rotation angle of the additional rotation support member (6) can be adjusted.

[0143] The rotation angle of the additional rotation support member (6) can be adjusted by adjusting the position of the above-mentioned stopper portion (120).

[0144] The above-mentioned rotation angle adjustment means (100) may include an installation groove formed on the outer side of the base frame (11) into which the inner end of the locking projection (120) is inserted.

[0145] At this time, the above-mentioned installation grooves are provided in multiple numbers, and the multiple installation grooves can be spaced apart along the circumferential direction of a circle centered on the additional rotation axis (10d).

[0146] The above-mentioned rotation angle adjustment means (100) may include a screw groove (130) formed in the additional rotation shaft (10d).

[0147] At this time, the stopper portion (110) may include an elastic portion (111) formed of an elastic material and a coupling portion (112) that is provided protruding from the elastic portion (111) to be inserted into the screw groove and has screw threads on its outer surface to be screw-fastened with the screw groove (130).

[0148] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing the technical concept or essential features thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

1. A pair of base frames spaced apart from each other; A fixed support member positioned between a pair of base frames, with both longitudinal ends connected to the pair of base frames; A pivot support member positioned between a pair of base frames, with both longitudinal ends rotatably connected to the front side of the base frames; and It includes a driving means comprising a winch connected to the rear side of the base frame and a rope wound around the winch with the front side connected to the pivot support member. An electric vehicle fire spread prevention device characterized by further comprising a frame member including a connecting frame connecting the rear ends of a pair of base frames, a pair of legs extending upward from the upper part of the connecting frame, a gripping frame connecting the upper ends of the pair of legs, a moving wheel provided at the lower part of a pair of base frames, and an installation frame provided at the upper part of the connecting frame on which the winch is installed.

2. In Claim 1, The above driving means is, An electric vehicle fire spread prevention device characterized by further including a fixing means for restricting the rotation of the winch drum around which the above-mentioned rope is wound.

3. In Claim 1, An electric vehicle fire spread prevention device characterized by further including a penetrating member provided on the upper part of the fixed support bar and through which the rope passes.

4. In Claim 1, An electric vehicle fire spread prevention device characterized by being disposed between a pair of base frames, with both longitudinal ends rotatably connected to each of the pair of base frames, and further including an additional pivot support member disposed between the fixed support member and the pivot support member.

5. In Claim 4, An electric vehicle fire spread prevention device characterized by further including a rotation angle adjustment means provided on a pair of base frames and the additional rotation support member, which controls the rotation angle of the additional rotation support member so that the rotation support member and the additional rotation support member are spaced apart when the rotation support member is placed on the floor.

6. In Claim 1, An electric vehicle fire spread prevention device characterized by further including an additional fixed support member positioned between a pair of base frames and having both longitudinal ends connected to the pair of base frames, positioned behind the fixed support member and having a height smaller than that of the fixed support member.

7. In Claim 1, A fire extinguisher that wraps around the fixed support member, with the rear side connected to a pair of base frames and the connecting frame, and the front side connected to the rotating support member; A sprinkler nozzle provided on one or more of the above frame member, the above fixed support member, and the above rotating support member, for discharging fire extinguishing water; A sensing means connected to the above-mentioned frame member and detecting a fire in an electric vehicle; and An electric vehicle fire spread prevention device characterized by further including a control unit that, upon receiving a fire detection signal from the above detection means, generates a supply signal to supply the supply device to supply fire extinguishing water to the above spray nozzle and transmits the signal to the supply device.

8. In Claim 1, An electric vehicle fire spread prevention device characterized by further comprising: a skeletal frame connected to the above-mentioned frame member and disposed on the floor, and including a rear frame that surrounds a pair of base frames and the connecting frame when viewed in a planar view, and a front frame disposed to surround the outer side of the pivot support member and having both ends rotatably coupled to both ends of the rear frame; and a watertight means including a packing member provided at the bottom of the skeletal frame.

9. In Claim 8, An electric vehicle fire spread prevention device characterized by the above-described skeletal frame comprising a first member having a first direction length, a second member having a second direction length orthogonal to the first direction, a horizontal connecting member connecting adjacent first members, and a vertical connecting member connecting the first member and the second member.

10. In Claim 9, The above horizontal connecting member includes a pair of watertight members and a first body disposed between the pair of watertight members and connected to the pair of watertight members. The electric vehicle fire spread prevention device is characterized in that the vertical connecting member comprises a second body, a first watertight portion protruding from the second body toward the first member, a second watertight portion protruding from the second body toward the second member, a first groove portion formed by recessing into the first watertight portion so that the end of the first member is inserted, and a second groove portion formed by recessing into the second watertight portion so that the end of the second member is inserted.

Images