KR20240030967A - Apparatus for spraying water on the underside of an electric vehicle including jamming assembly - Google Patents

Abstract

According to the present invention, a lower sprinkler for an electric vehicle comprises: a frame assembly (100); a spray assembly (200) assembled to the frame assembly (100), and spraying a fire extinguishing fluid to extinguish a fire; a bar assembly (300) rotatably assembled to an upper portion of the frame assembly (100), and transmitting an operating force of a worker to the frame assembly (100); and a locking assembly (400) locked and fixed to a vehicle when entering a lower portion of the vehicle. According to the present invention, the fire extinguishing fluid is injected by entering the lower part of the vehicle of the electric vehicle, thereby directly extinguishing the fire generated in the battery and actively suppressing the temperature rise of the battery when the fire is extinguished.

Description

{Apparatus for spraying water on the underside of an electric vehicle including jamming assembly}

The present invention relates to a bottom sprinkler device for an electric vehicle including a catch assembly, and more specifically, a bottom sprinkler for an electric vehicle including a catch assembly that can enter the bottom of an electric vehicle and spray water directly on a battery in a fire. It's about devices.

Generally, unlike gasoline vehicles, electric vehicles include a battery, a power conversion device (inverter), and an electric motor.

Among these, the battery is an energy storage device that stores electricity to drive the electric motor and drive the vehicle, and the power conversion device is a device that converts the electric energy of the battery to generate the necessary driving force, and the electric motor is operated by the power conversion device. It is rotated and driven by converted electrical energy, allowing the electric vehicle to run.

These electric vehicles have the advantage of being eco-friendly, but they have the fatal disadvantage of making it difficult to extinguish fires. Batteries, which are energy storage devices applied to electric vehicles, have high-capacity battery cells densely arranged in accordance with space and weight constraints and are installed in a sealed form to minimize physical shock from the outside, so penetration of fire extinguishing agents in the event of a fire Evolution is relatively difficult.

Therefore, if a fire occurs in the battery of an electric vehicle due to pressure, overheating, vibration, shock, short circuit, overcharging, or discharging, the separator, which is a safety device, is damaged, resulting in a thermal runaway phenomenon in which the temperature rises by thousands to tens of thousands of degrees, and the battery is damaged. As the fire has the characteristic of not being extinguished until it is completely burned out, there is no choice but to extinguish the external flames with fire extinguishing water until the fire is completely burned out. Due to the thermal runaway fire characteristics of these electric vehicles, after the fire is activated, It is impossible to extinguish the fire until it is completely destroyed.

Additionally, it is known that when a fire occurs in an electric vehicle, more than 10 times more water is required than that required to extinguish a fire in an internal combustion engine vehicle.

As an example of a method to facilitate fire extinguishment of electric vehicles, Republic of Korea Patent Registration No. 10-1998280 (Public Notice 20190709) includes multiple lithium-ion batteries stored in the lower space of the vehicle body of an electric vehicle, and multiple nozzles on one side. and an electric vehicle battery unit in which a fire detection sensor is installed; A compressed gas cylinder installed in the electric vehicle and storing compressed inert gas; A plurality of fire extinguisher containers installed in the electric vehicle and storing fire extinguishing powder; It consists of one main pipe connected to the gas injection port of the compressed gas cylinder and branch pipes branching from the main pipe and having the same number as the number of fire extinguisher cylinders, and a main pipe and a branch pipe first branching from the main pipe. A compressed gas pipe installed with a compressed gas valve that opens and closes the main pipe; A fire extinguisher pipe at one end connected to the fire extinguishing powder injection port of the fire extinguisher cylinder, at one side of which a branch pipe of the compressed gas pipe is connected to form a T shape, and at the other end connected to each nozzle of the electric vehicle battery unit; and a control unit that keeps the compressed gas valve closed in normal times and opens the compressed gas valve when a fire detection signal is received from a fire detection sensor to inject compressed gas from the gas injection port. .

Republic of Korea Patent Publication No. 10-2021-0057278 (published 20210521) discloses a volume expansion detection sensor mounted on each cell to detect expansion of a cell of an energy storage system of an electric vehicle, and an expansion detected by the volume expansion detection sensor. A cooling means for spraying a fire extinguishing agent to cool the temperature of the cell, a fire detection means for detecting a fire inside the energy storage system, and a fire detection means for extinguishing the fire when the fire detection means detects a fire inside the energy storage system. A fire extinguishing device for an energy storage system for an electric vehicle is disclosed, which includes a fire extinguishing means for spraying a fire extinguishing agent.

However, the conventional fire extinguishing device for electric vehicles as described above only prevents battery fires from being activated by detecting and extinguishing battery fires at an early stage, and does not include a component for extinguishing fires in already activated electric vehicles. There is a problem that does not exist.

Republic of Korea Patent No. 10-2407326 Republic of Korea Patent No. 10-2431466 Republic of Korea Patent No. 10-2409287 Republic of Korea Patent No. 10-1998280 Republic of Korea Patent Publication No. 10-2021-0057278

The purpose of the present invention is to provide a lower sprinkler device for an electric vehicle that includes a catch assembly that can extinguish a fire by spraying water directly on the lower portion of the electric vehicle where a fire occurs.

The present invention includes a frame assembly (100); A spray assembly (200) assembled to the frame assembly (100) and spraying fire extinguishing fluid to extinguish a fire; A bar assembly (300) rotatably assembled on the upper part of the frame assembly (100) and transmitting the operator's manipulation force to the frame assembly (100); It includes a locking assembly 400 that is locked to the vehicle when entering the underside of the vehicle, and the frame assembly 100 includes a first frame 10 and a second frame 20 arranged to be spaced apart from each other; It includes a connection frame 30 connecting the first frame 10 and the second frame 20, wherein the first frame 10 includes a first bottom wall 11 and a first top wall 12. , includes a first left wall (13) and a first light wall (14), and the second frame (20) includes a second bottom wall (21), a second top wall (22), and a second left wall (23). ) and a second light wall 24, wherein the connecting frame 30 includes a first connecting frame 31 disposed in front of the bar assembly 300 and a rear of the bar assembly 300. The second connection frame 32 is disposed, the third connection frame 33 to which the bar assembly 300 is rotatably assembled, and the front and rear of the second connection frame 32 and the third connection frame 33. It includes a center frame 34 connected in the direction, and is formed with a plurality of first injection opening surfaces 50 penetrating the first top wall 12 in the vertical direction, and extending the second top wall 22 in the vertical direction. A plurality of second spray opening surfaces 60 penetrating are formed, and the spray assembly 200 includes a plurality of spray nozzles exposed to the first spray opening surface 50 and the second spray opening surface 60. It includes (270), and the injection assembly 200 includes: a first injection pipe 210 inserted into and disposed in the first frame 10; A second injection pipe 220 inserted into and disposed in the second frame 20; A front injection pipe 230 connecting the front ends of the first injection pipe 210 and the second injection pipe 220; A rear injection pipe 240 connecting the rear ends of the first injection pipe 210 and the second injection pipe 220; A supply pipe 250 disposed in the rear injection pipe 240 and supplying fluid for fire extinguishing; and the injection nozzle 270 disposed in at least one of the first injection pipe 210, the second injection pipe 220, the front injection pipe 230, and the rear injection pipe 240, and the bar The assembly 300 includes a bar bracket 310 installed on the third connection frame 33; A rotating bar 320 rotatably assembled with the bar bracket 310; It includes; a handle 330 disposed at the end of the rotating bar 320; and the locking assembly 400 includes a locking base 410 mounted on the upper side of the frame assembly 100; An elastic base 420 formed integrally with the locking base 410 and bent backward from the front end of the locking base 410; A locking plate 430 that is bent upward at the rear end of the elastic base 420 and forms a locking plate with the vehicle; An elastic member 440 disposed between the locking base 410 and the elastic base 420 and elastically pressing the elastic base 420 in an upward direction; A first engaging portion 452 surrounding both sides of the third connection frame 33; a second engaging portion 454 surrounding both sides of the center frame 34; A rotation limiting member 460 is rotatably installed on the locking base 410 and selectively blocks upward movement of the elastic base 420 by the elastic member 440, and the rotation The limiting member 460 includes a rotation limiting body 462 rotatably assembled with the engaging base 410 through a rotation limiting shaft 468; a rotation limiting support portion 464 that is bent at the top of the rotation limiting body 462 and supports an upper side of the elastic base 420; and a limiting locking portion 466 that protrudes downward from the rotation limiting support portion 464 and forms a mutual lock with the upper side of the elastic base 420, and is oriented laterally from the side of the locking base 410. A rotation bracket 412 protruding is further disposed, the rotation limitation axis 468 is disposed to penetrate the rotation bracket 412 and the rotation limitation body 462, and the rotation limitation axis 468 is located in the front and rear directions. Provided is a lower sprinkler device for an electric vehicle including a locking assembly arranged as.

First, the present invention has the advantage of being able to directly extinguish the source of a fire occurring in the battery and actively suppressing the rise in temperature of the battery when extinguishing the fire because it enters the bottom of the electric vehicle and sprays fire extinguishing fluid. there is.

Second, in the present invention, since a plurality of first injection nozzles through which the fire extinguishing fluid is discharged are exposed upward through the first injection opening surface, and a plurality of second injection nozzles are exposed upward through the second injection nozzle, the fire extinguishing fluid There is an advantage in that the fire extinguishing fluid can be sprayed stably while the spray assembly supplied is firmly supported on the frame assembly.

Third, since the bar assembly of the present invention is installed to be folded in the front-to-back direction, there is an advantage that in the event of an electric vehicle fire, the worker can easily enter the underside of the vehicle while staying away from the vehicle.

Fourth, the present invention has the advantage of preventing the injection assembly from entering more than necessary because the locking assembly forms a mutual lock with the bottom of the vehicle when entering the bottom of the electric vehicle.

Fifth, in the present invention, when supplying fire extinguishing fluid, the support assembly is deployed by the pressure of the fire extinguishing fluid and comes into close contact with the ground, and the caster used when entering is separated from the ground, thereby suppressing the change in position when spraying fire extinguishing fluid. There are advantages to this.

Figure 1 is a perspective view of a lower sprinkler device for an electric vehicle according to a first embodiment of the present invention.
Figure 2 is a plan view of a lower sprinkler device for an electric vehicle according to the first embodiment of the present invention.
Figure 3 is a right side view of Figure 2.
Figure 4 is a front view of Figure 2.
FIG. 5 is a perspective view of the first frame shown in FIG. 2.
FIG. 6 is a perspective view of the second frame shown in FIG. 2.
Figure 7 is a side view of the locking assembly shown in Figure 2.
Figure 8 is a plan view of Figure 7.
Figure 9 is a perspective view of the rotation limiting member shown in Figure 7.
Figure 10 is a right side view of a lower sprinkler device for an electric vehicle according to a second embodiment of the present invention.
FIG. 11 is a cross-sectional view of the first supporter shown in FIG. 10.
FIG. 12 is a cross-sectional view of the second supporter shown in FIG. 10.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the present specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

Figure 1 is a perspective view of a bottom sprinkler device for an electric vehicle according to a first embodiment of the present invention, Figure 2 is a plan view of a bottom sprinkler device for an electric vehicle according to a first embodiment of the present invention, and Figure 3 is a view of the bottom sprinkler device of Figure 2. It is a right side view, FIG. 4 is a front view of FIG. 2, FIG. 5 is a perspective view of the first frame shown in FIG. 2, and FIG. 6 is a perspective view of the second frame shown in FIG. 2.

The lower sprinkler device for an electric vehicle according to this embodiment includes a frame assembly 100, a spray assembly 200 assembled to the frame assembly 100 and spraying fluid for fire extinguishing, and the frame assembly 100. ) and includes a bar assembly 300 that is rotatably assembled on the upper part and transmits the operator's operating force to the frame assembly 100.

The frame assembly 100, spray assembly 200, and bar assembly 300 are made of a metal material with high heat resistance and corrosion resistance.

To prevent corrosion, an anti-bush coating may be applied to the surfaces of the frame assembly 100, spray assembly 200, and bar assembly 300.

The lower sprinkler device may further include a plurality of casters 40 that are disposed below the frame assembly 100, are supported on the ground, and reduce friction when moving.

The frame assembly 100 includes a first frame 10 and a second frame 20 arranged to be spaced apart from each other, and a connection frame 30 connecting the first frame 10 and the second frame 20. Includes.

In this embodiment, the first frame 10 is placed on the left and extends long in the front-back direction, and the second frame 20 is placed on the right and extends long in the front-back direction.

The first frame 10 has a hollow interior and is open at the front and rear ends, respectively. In this embodiment, the top cross section of the first frame 10 is formed in a square shape.

The first frame 10 includes a first bottom wall 11, a first top wall 12, a first left wall 13, and a first light wall 14.

The first bottom wall 11 and the first top wall 12 are arranged to face each other in the vertical direction, and the first left wall 13 and the first light wall 14 are arranged to face each other in the left and right directions. .

A first frame space 19 is formed inside surrounded by the first bottom wall 11, the first top wall 12, the first left wall 13, and the first light wall 14.

The front and rear sides of the first frame space 19 are opened, respectively, and are referred to as a first front opening surface 19a and a first rear opening surface 19b to distinguish them.

A plurality of first injection opening surfaces 50 are formed that penetrate the first top wall 12 in the vertical direction. In this embodiment, four first injection opening surfaces are arranged, and when divided, from front to back, there are 1-1 injection opening surfaces 51, 1-2 injection opening surfaces 52, and 1-3 injection opening surfaces. It is referred to as the opening surface 53 and the 1-4 injection opening surface 54.

The 1-1st injection opening surface 51, the 1-2nd injection opening surface 52, the 1-3rd injection opening surface 53, and the 1-4th injection opening surface 54 are formed to face upward. .

The second frame 20 is also formed to be hollow on the inside, and has openings at the front and rear ends, respectively. In this embodiment, the top cross section of the second frame 20 is formed in a square shape.

The second frame 20 includes a second bottom wall 21, a second top wall 22, a second left wall 23, and a second light wall 24.

The second bottom wall 21 and the second top wall 22 are arranged to face each other in the vertical direction, and the second left wall 23 and the second light wall 24 are arranged to face each other in the left and right directions. .

A second frame space 29 is formed inside surrounded by the second bottom wall 21, the second top wall 22, the second left wall 23, and the second light wall 24.

The front and rear sides of the second frame space 29 are opened, respectively, and are referred to as a second front opening surface 29a and a second rear opening surface 29b to distinguish them.

A plurality of second injection opening surfaces 60 are formed that penetrate the second top wall 22 in the vertical direction. In this embodiment, four second injection opening surfaces are arranged, and when divided, from front to back, there are 2-1 injection opening surfaces 61, 2-2 injection opening surfaces 62, and 2-3 injection opening surfaces. It is referred to as the opening surface 63 and the 2-4 injection opening surface 64.

The 2-1st injection opening surface 61, the 2-2nd injection opening surface 62, the 2-3rd injection opening surface 63, and the 2-4th injection opening surface 64 are formed to face upward. do.

The connection frame 30 includes a first connection frame 31 disposed in front of the bar assembly 300, a second connection frame 32 disposed in the rear of the bar assembly 300, and the bar The assembly 300 includes a third connection frame 33 that is rotatably assembled.

The third connection frame 33 is disposed between the first connection frame 31 and the second connection frame 32.

In this embodiment, the caster 40 is assembled to the connection frame 30. Unlike the present embodiment, the caster 40 may be disposed below the first frame 10 and the second frame 20.

In this embodiment, four casters 40 are arranged, two are assembled to the first connection frame 31, and two are assembled to the second connection frame 32.

The casters placed on the first connection frame 31 are called a first caster 41 and a second caster 42, and the casters placed on the second connection frame 32 are called a third caster 43 and a second caster 42. It is called 4 caster (44).

In order to prevent deformation and damage due to fire heat, the first caster 41, the second caster 42, the third caster 43, and the fourth caster 44 are made of a metal material with high heat resistance.

In this embodiment, the first caster installation part 141 and the second caster installation part 142 are disposed on the left and right sides of the first connection frame 31, respectively, and the left and right sides of the second connection frame 32 A third caster installation part 143 and a fourth caster installation part 144 are disposed on the right side, respectively.

The first caster installation part 141 and the second caster installation part 142 are arranged to extend forward from the first connection frame 31.

The first caster 41 is disposed below the first caster installation portion 141 to support the load, and the second caster 42 is disposed below the second caster installation portion 142 to support the load. do.

The third caster installation part 143 and the fourth caster installation part 144 are arranged to extend rearward from the second connection frame 32.

The third caster 43 is disposed below the third caster installation portion 143 to support the load, and the fourth caster 44 is disposed below the fourth caster installation portion 144 to support the load. do.

The first caster 41 is disposed between the 1-1 injection opening surface 51 and the 1-2 injection opening surface 52, and the second caster 42 is disposed between the 1-1 injection opening surface 51 and the 1-2 injection opening surface 52. It is disposed between the spherical surface 61 and the 2-2 injection opening surface 62.

The third caster 43 is disposed rearward than the 1-4 injection opening surface, and the fourth caster 44 is disposed rearward than the 2-4 injection opening surface 64.

One end (left end) of the third connection frame 33 is coupled between the 1-3 injection opening surface 53 and the 1-4 injection opening surface 54, and the third connection frame 33 The other end (right end) of is coupled between the 2-3rd injection opening surface 63 and the 2-4th injection opening surface 64.

That is, in this embodiment, the third connection frame 33 is disposed rearward relative to the middle of the frame assembly 100 in the front-back direction, and when the frame assembly 100 is pushed into the lower part of the vehicle through this, the third connection frame 33 is disposed at the rear of the frame assembly 100. It minimizes interference with the bar assembly 300 and allows workers to be located far away from the vehicle.

The injection assembly 200 includes a first injection pipe 210 inserted into the first frame 10, a second injection pipe 220 inserted into the second frame 20, and A front injection pipe 230 connecting the front ends of the first injection pipe 210 and the second injection pipe 220, and a rear end of the first injection pipe 210 and the second injection pipe 220. A rear injection pipe 240, a supply pipe 250 disposed in the rear injection pipe 240 and supplying fluid for fire extinguishing, the first injection pipe 210, the second injection pipe 220, It includes an injection nozzle 270 disposed in at least one of the front injection pipe 230 and the rear injection pipe 240.

In this embodiment, the injection assembly 200 is disposed between the front injection pipe 230 and the rear injection pipe 240 in the front-rear direction, and includes the first injection pipe 210 and the second injection pipe ( It may further include a middle injection pipe 260 connecting the middle injection pipe 220) and a center injection pipe 280 connecting the middle injection pipe 260 and the front injection pipe 230.

The middle injection pipe 260 is disposed in front of the third connection frame 33 and behind the 1-3 injection opening surface 53 and the 2-3 injection opening surface 63.

Since the center injection pipe 280 is disposed to penetrate the first connection frame 31 in the front-to-rear direction, left-right shaking of the injection assembly 200 can be suppressed.

The injection nozzle 270 may also be disposed in the middle injection pipe 260 and the center injection pipe 280.

When viewed from the top, the first injection pipe 210, the second injection pipe 220, the front injection pipe 230, and the rear injection pipe 240 are formed in a “ㅁ” shape.

The supply pipe 250 is located in the middle of the left and right sides of the rear injection pipe 240 and extends rearward.

Since the first injection pipe 210 and the second injection pipe 220 are disposed on the left and right of the supply pipe 250, fluid can be supplied evenly to both sides, and the ends are blocked due to the front injection pipe 230. , sufficient pressure can be formed in the first injection pipe 210 and the second injection pipe 220.

When inserted into the lower part of the vehicle, in order to minimize interference with the lower part of the vehicle, the first injection pipe 210, the second injection pipe 220, the front injection pipe 230, and the rear injection pipe 240 are flat. form

The first injection pipe 210 and the second injection pipe 220 are arranged in parallel, and the front injection pipe 230 and the rear injection pipe 240 are arranged in parallel.

The left and right widths of the first injection pipe 210 and the second injection pipe 220 are smaller than the vehicle width, and may be 1.5 m to 2 m.

The front-to-back width of the front injection pipe 230 and the rear injection pipe 240 is smaller than the overall length (front-to-rear length) of the vehicle, and may be 4.2 m to 5 m.

In this embodiment, four injection nozzles 270 are disposed in each of the first injection pipe 210 and the second injection pipe 220.

If distinction is necessary, the injection nozzles 270 arranged in the first injection pipe 210 in the order from front to back are divided into 1-1 injection nozzle, 1-2 injection nozzle, and 1-3 injection nozzle. and 1-4 injection nozzles.

The 1-1 spray opening surface 51, the 1-2 spray opening surface 52, the 1-3 spray opening surface 53, and the 1-4 spray opening surface 54. The injection nozzle, the 1-2nd injection nozzle, the 1-3rd injection nozzle, and the 1-4th injection nozzle are arranged in order.

If division is necessary, the injection nozzles 270 arranged in the second injection pipe 220 in the order from front to back are divided into 2-1 injection nozzle, 2-2 injection nozzle, and 2-3 injection nozzle. and 2-4 injection nozzles.

The 2-1 spray opening surface 61, the 2-2 spray opening surface 62, the 2-3 spray opening surface 63, and the 2-4 spray opening surface 64. The injection nozzle, the 2-2nd injection nozzle, the 2-3rd injection nozzle, and the 2-4th injection nozzle are arranged in order.

The spray nozzle 270 is disposed to face upward, and is sprayed upward by fluid pressure supplied through the supply pipe 250.

A plurality of injection nozzles 270 are also disposed in the front injection pipe 230 and the rear injection pipe 240 in the longitudinal direction. At least two injection nozzles are disposed in the front injection pipe 230 and the rear injection pipe 240.

In this embodiment, two injection nozzles are disposed in the front injection pipe 230 and the rear injection pipe 240, respectively.

Firefighting water may be supplied through the supply pipe 250. In this embodiment, a female thread 255 for connecting a 40 mm fire hose is disposed on the supply pipe 250 so that it can be easily assembled with a fire hose. Additionally, a coupling can be combined to enable connection with a 65mm fire hose.

The bar assembly 300 includes a bar bracket 310 installed on the third connection frame 33, a rotating bar 320 rotatably assembled with the bar bracket 310, and the rotating bar 320. It includes a handle 330 disposed at the end of.

The handle 330 may be arranged to intersect with the rotation bar 320.

The length of the rotating bar 320 is longer than the front and rear lengths of the injection assembly 200, and this allows the operator to be as far away from the vehicle as possible when inserting the injection assembly 200 into the lower part of the vehicle.

The length of the rotating bar 320 may be 1.2 to 2 times the front-to-rear length of the injection assembly 200.

The rotating bar 320 can be arranged in a structure whose length is adjustable, and can be inserted inside in the longitudinal direction to reduce the overall length.

When the rotation bar 320 is fully extended and folded forward or backward, the handle 330 is located in front of the front injection pipe 230 or behind the rear injection pipe 240. do.

Meanwhile, the lower sprinkler device for an electric vehicle according to this embodiment further includes a locking assembly 400 that is locked to the vehicle when entering the lower part of the vehicle.

The lower end of the engaging assembly 400 is coupled to at least one of the frame assembly 100 or the injection assembly 200, and the upper end forms a mutual engaging relationship with the lower part of the vehicle.

In this embodiment, the lower end of the engaging assembly 400 is coupled to the frame assembly 100, and the upper end is fixed to the bumper of the vehicle.

When the lower sprinkler device enters the bottom of the vehicle, the locking assembly 400 forms a mutual lock with the bumper of the vehicle to prevent the lower sprinkler device from entering beyond a predetermined distance, and is located in the optimal position for fire extinguishing. There is an advantage to doing so.

In addition, by providing a plurality of locking assemblies 400 and mounting the corresponding locking assemblies 400 according to the size of the fire vehicle, it can be located in an optimal position for fire extinguishing.

The locking assembly 400 is formed integrally with a locking base 410 mounted on the upper side of the frame assembly 100, and is bent backward from the front end of the locking base 410. It includes an elastic base 420 formed by forming an elastic base 420, and a locking plate 430 that is bent upward from the rear end of the elastic base 420 and forms a lock with the vehicle.

The locking base 410, the elastic base 420, and the locking plate 430 are integrally formed, and in this embodiment, are made of a metal material with high heat resistance and elasticity.

The locking base 410 may be mounted on the upper side of the frame assembly 100 and the injection assembly 200. In this embodiment, the hanging base 410 is supported by being mounted on the third connection frame 33.

In order to couple the third connection frame 33 and the locking base 410, a locking coupling portion 450 protruding downward from the lower side of the locking base 410 is further disposed.

The engaging portion 450 is formed to surround the front and rear sides of the third connection frame 33, and may be joined by welding.

In this embodiment, in order to stably support the hanging base 410, a center frame 34 connecting the second connection frame 32 and the third connection frame 33 in the front-back direction is further disposed.

The engaging portion 450 includes a first engaging portion 452 surrounding both sides of the third connecting frame 33 and a second engaging portion 454 surrounding both sides of the center frame 34. do.

The third connecting frame 33 is inserted into the first engaging portion 452 to restrict forward and backward movement, and the center frame 34 is inserted into the second engaging portion 454 to restrict left and right movement.

The elastic base 420 is bent backward from the front end of the locking base 410, and can store elastic force to rotate upward due to the elasticity of the material.

The locking plate 430 is bent upward at the rear end of the elastic base 420, and in this embodiment, can form a mutual lock with the lower structure or bumper of the vehicle.

The locking assembly 400 may further include an elastic member 440 that is disposed between the locking base 410 and the elastic base 420 and elastically presses the elastic base 420 in an upward direction.

The locking plate 430 can be maintained in close contact with the vehicle by the elastic force of the elastic member 440.

The locking assembly 400 is rotatably installed on the locking base 410, and includes a rotation limiting member 460 that selectively blocks upward movement of the elastic base 420 by the elastic member 440. ) further includes.

At least one rotation limiting member 460 is disposed on a side of the locking base 410.

The rotation limiting member 460 includes a rotation limiting body 462 rotatably assembled with the locking base 410 through a rotation limiting shaft 468, and is bent at an upper end of the rotation limiting body 462. It includes a rotation limiting support portion 464 that supports the upper side of the elastic base 420.

The rotation limiting member 460 may be further disposed with a limiting engaging portion 466 that protrudes downward from the rotation limiting support 464 and forms mutual engagement with the upper side of the elastic base 420, A groove (not shown) into which the limit locking portion 466 is inserted may be formed on the upper side of the elastic base 420. The groove may be formed in the front-back direction.

A rotation bracket 412 protruding laterally from the side of the locking base 410 is further disposed, and a rotation limiting shaft 468 is disposed to penetrate the rotation bracket 412 and the rotation limiting body 462. The rotation limiting axis 468 is disposed in the front-to-back direction.

The rotation limiting member 460 blocks the elastic base 420 from expanding upward through mutual locking.

In the event of a fire, when the worker releases the rotation restriction by rotating the rotation limiting member 460 in the side direction, the elastic base 420 is It can be quickly deployed in an upward direction, and the locking plate 430 can be maintained pressed toward the lower side of the vehicle.

FIG. 10 is a right side view of a lower sprinkler device for an electric vehicle according to a second embodiment of the present invention, FIG. 11 is a cross-sectional view of the first supporter shown in FIG. 10, and FIG. 12 is a view of the second supporter shown in FIG. 10. This is a cross-sectional view.

The lower sprinkler device for an electric vehicle according to this embodiment further includes a support assembly 500 that is deployed by hydraulic pressure supplied to the spray assembly 200 and is in close contact with the ground.

The support assembly 500 is stored in the injection assembly 200, and when high-pressure fluid is supplied to the supply pipe 250, it is deployed downward by hydraulic pressure and the lower end is supported on the ground, through which the injection assembly 200 ) fix the position.

Due to the reaction of the fluid injected from the injection nozzle 270, the position of the injection assembly 200 may be moved forward or backward or left and right.

The support assembly 500 can prevent fire extinguishing fluid from being sprayed in an unintended direction by fixing the position of the spray assembly 200 when spraying fluid.

In particular, since the support assembly 500 is deployed by the pressure of the fire extinguishing fluid rather than a separate power source, it has the advantage of not requiring a power source.

The support assembly 500 includes a first supporter 510 disposed in the first injection pipe 210 and a second supporter 520 disposed in the second injection pipe 220.

The first supporter 510 and the second supporter 520 have the same configuration except for location.

The first supporter 510 is inserted into the 1-1 support cylinder 512 disposed to penetrate the first injection pipe 210 in the vertical direction, and the inside of the 1-1 support cylinder 512. The 1-2 support cylinder 514 is disposed so as to penetrate the 1-1 support cylinder 512 in the vertical direction and is coupled to the lower end of the 1-2 support cylinder 514. It includes a first supporter friction member 516 supported by.

When fire-fighting fluid is supplied, the 1-1 supporter cylinder 512 and the 1-2 supporter cylinder 514 slide and unfold downward, and the first supporter friction member 516 at the bottom is in close contact with the ground to support the lower part. Can support sprinkler system.

The 1-1 support cylinder 512 is formed in a cylindrical shape, the upper end (512a) is bent radially outward and locked with the first injection pipe 210 in the vertical direction, and the lower end (512b) is bent inward. It is bent to provide locking with the 1-2 support cylinder 514 in the vertical direction.

The 1-2 support cylinder 512 is formed in a cylindrical shape, and the upper end 514a is bent radially outward and locked with the 1-1 support cylinder 512 in the vertical direction, and the first supporter friction Member 516 is welded to the lower end 514b.

The first supporter friction member 516 may have a plurality of protrusions 516a disposed downward, and the protrusions 516a may increase friction with the ground.

The height of the 1-1 support cylinder 512, the 1-2 support cylinder 514, and the first support friction member 516 is formed to be longer than the height of the caster 40.

Therefore, when the support assembly 500 is deployed, the spray assembly 200 moves upward and the caster 40 is separated from the ground, thereby preventing the lower sprinkler device from being moved from the installation position.

The second supporter 520 is inserted into the 2-1 support cylinder 522 disposed to penetrate the second injection pipe 220 in the vertical direction, and the inside of the 2-1 support cylinder 522. The 2-2 support cylinder 524 is disposed so as to penetrate the 2-1 support cylinder 522 in the vertical direction and is coupled to the lower end of the 2-2 support cylinder 524. It includes a second supporter friction member 526 supported by.

When fire-fighting fluid is supplied, the 2-1 supporter cylinder 522 and the 2-2 supporter cylinder 524 are slidably deployed downward, and the second supporter friction member 526 at the bottom is in close contact with the ground to support the lower part. Can support sprinkler system.

The 2-1 support cylinder 522 is formed in a cylindrical shape, the upper end (522a) is bent radially outward and locked with the second injection pipe 220 in the vertical direction, and the lower end (522b) is bent inward. It is bent to provide locking with the 2-2 support cylinder 524 in the vertical direction.

The 2-2 supporter cylinder 522 is formed in a cylindrical shape, and the upper end 524a is bent radially outward and locked with the 2-1 supporter cylinder 522 in the vertical direction, and the second supporter friction Member 526 is coupled to the lower end 524b.

The second supporter friction member 526 may have a plurality of protrusions 526a disposed downward, and the protrusions 526a may increase friction with the ground.

Since the locking assembly 400 limits the relative movement of the vehicle and the lower sprinkler device, and the support assembly 500 limits the relative movement of the lower sprinkler device and the ground, even if the hydraulic pressure of the fire extinguishing fluid is strongly sprayed, the fire is extinguished. It has the advantage of firmly preventing movement from its installed position.

Hereinafter, since the remaining configuration is similar to the first embodiment, detailed description will be omitted.

In the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

10: 1st frame 20: 2nd frame
30: Connection frame 40: Caster
50: first injection opening surface 60: second injection opening surface
100: Frame assembly 200: Spray assembly
210: first injection pipe 220: second injection pipe
230: Front injection pipe 240: Rear injection pipe
250: supply pipe 260: middle injection pipe
270: injection nozzle 280: center injection pipe
300: Bar assembly 310: Bar bracket
320: Rotating bar 330: Handle
400: Locking assembly 500: Support assembly

Claims (1)

Frame assembly (100);
A spray assembly (200) assembled to the frame assembly (100) and spraying fire extinguishing fluid to extinguish a fire;
A bar assembly (300) rotatably assembled on the upper part of the frame assembly (100) and transmitting the operator's manipulation force to the frame assembly (100);
Includes a locking assembly 400 that is locked to the vehicle when entering the lower part of the vehicle,
The frame assembly 100 is,
A first frame 10 and a second frame 20 arranged to be spaced apart from each other; It includes a connection frame 30 connecting the first frame 10 and the second frame 20,
The first frame 10 includes a first bottom wall 11, a first top wall 12, a first left wall 13, and a first light wall 14,
The second frame 20 includes a second bottom wall 21, a second top wall 22, a second left wall 23, and a second light wall 24,
The connection frame 30 includes a first connection frame 31 disposed in front of the bar assembly 300, a second connection frame 32 disposed in the rear of the bar assembly 300, and the bar The assembly 300 includes a third connection frame 33 rotatably assembled, and a center frame 34 connecting the second connection frame 32 and the third connection frame 33 in the front and rear directions,
A plurality of first injection opening surfaces 50 are formed that penetrate the first top wall 12 in the vertical direction, and a plurality of second injection opening surfaces 60 are formed that penetrate the second top wall 22 in the vertical direction. is formed, the injection assembly 200 includes a plurality of injection nozzles 270 exposed to the first injection opening surface 50 and the second injection opening surface 60,
The injection assembly 200 is,
A first injection pipe 210 inserted into and disposed in the first frame 10; A second injection pipe 220 inserted into and disposed in the second frame 20; A front injection pipe 230 connecting the front ends of the first injection pipe 210 and the second injection pipe 220; A rear injection pipe 240 connecting the rear ends of the first injection pipe 210 and the second injection pipe 220; A supply pipe 250 disposed in the rear injection pipe 240 and supplying fluid for fire extinguishing; It includes the injection nozzle 270 disposed in at least one of the first injection pipe 210, the second injection pipe 220, the front injection pipe 230, and the rear injection pipe 240,
The bar assembly 300 is,
A bar bracket 310 installed on the third connection frame 33; A rotating bar 320 rotatably assembled with the bar bracket 310; It includes a handle 330 disposed at the end of the rotating bar 320,
The locking assembly 400 is,
A locking base 410 mounted on the upper side of the frame assembly 100;
An elastic base 420 formed integrally with the locking base 410 and bent backward from the front end of the locking base 410;
A locking plate 430 that is bent upward at the rear end of the elastic base 420 and forms a locking plate with the vehicle;
An elastic member 440 disposed between the locking base 410 and the elastic base 420 and elastically pressing the elastic base 420 in an upward direction;
A first engaging portion 452 surrounding both sides of the third connection frame 33;
a second engaging portion 454 surrounding both sides of the center frame 34;
A rotation limiting member 460 is rotatably installed on the locking base 410 and selectively blocks upward movement of the elastic base 420 by the elastic member 440,
The rotation limiting member 460 is,
A rotation limiting body 462 rotatably assembled with the locking base 410 through a rotation limiting shaft 468;
a rotation limiting support portion 464 that is bent at the top of the rotation limiting body 462 and supports an upper side of the elastic base 420;
A limiting engaging portion 466 protrudes downward from the rotation limiting support portion 464 and forms mutual engagement with the upper side of the elastic base 420,
A rotation bracket 412 protruding laterally from the side of the locking base 410 is further disposed, and the rotation limiting shaft 468 is disposed to penetrate the rotation bracket 412 and the rotation limiting body 462. , A lower sprinkler device for an electric vehicle including a locking assembly in which the rotation limiting shaft 468 is disposed in the front and rear directions.

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