Water spray nozzle for extinguishing electric vehicle fire

Abstract

The present invention relates to a water spray nozzle for extinguishing an electric vehicle fire and, more specifically, to a water spray nozzle for extinguishing an electric vehicle fire, comprising: a fire-fighting water inlet unit connected to a fire-fighting water supply hose of a fire hydrant or a fire engine; a main flow path unit having multiple main spray nozzles installed in the upper part of a main pipe at predetermined intervals; a first branch flow path unit provided with multiple first branch nozzles on the upper part thereof; a second branch flow path unit provided with multiple second branch nozzles on the upper part thereof; a third branch flow path unit provided with multiple third branch nozzles on the upper part thereof; and a wheel rolling unit comprising a wheel rotated by a wheel shaft and a wheel coupling unit coupled to the third branch flow path unit at each of both ends of the third branch flow path unit, whereby, in view of the unique characteristics of electric vehicle fires, firefighting water can be uniformly sprayed over the entire vehicle from the vehicle's underside, thereby maximizing spray efficiency and effectively cooling the entire vehicle, including the battery pack, to enable rapid fire suppression.

Description

Electric vehicle fire hose nozzle

[0001] The present invention relates to an electric vehicle fire hose nozzle, and more particularly, to an electric vehicle fire hose nozzle including a fire water inlet, a main flow path, a branch flow path, a wheel rolling part, and an expansion flow path so as to reflect the special nature of electric vehicle fires, and to maximize the spraying efficiency by evenly spraying fire extinguishing water over the entire vehicle based on the bottom surface of the vehicle, thereby effectively cooling the entire vehicle including the battery pack and quickly extinguishing the fire.

[0002]

[0003] Recently, demand for electric vehicles has been rapidly increasing worldwide due to their environmental friendliness and high energy efficiency, and major automakers are continuously releasing electric vehicle models. This proliferation of electric vehicles has the positive effect of reducing urban air pollution and fossil fuel use.

[0004] However, as electric vehicles become more widespread, new problems are emerging. In particular, electric vehicle batteries exhibit different characteristics when exposed to fire compared to conventional fossil fuel vehicles. Electric vehicle batteries are prone to explosion when exposed to high temperatures, and fires are extremely difficult to extinguish. These characteristics make it difficult to effectively extinguish electric vehicle fires with existing firefighting equipment.

[0005] Fire suppression is difficult because lithium-ion batteries, the primary batteries used in electric vehicles, have high energy densities, making them susceptible to ignition from collisions, overheating, or electrical failures. If a lithium-ion battery catches fire, it generates high-temperature flames and toxic gases, and even with the use of water or extinguishing agents, the risk of re-ignition is high. This is due to the ongoing chemical reactions within the battery cells, a key factor making electric vehicle fires difficult to extinguish.

[0006] In this context, conventional firefighting equipment is primarily designed to extinguish fires in fossil fuel-powered internal combustion engine vehicles. These equipment extinguish fires by spraying water on the fuel tank and engine compartment. However, in the case of electric vehicles, the battery packs are widely distributed throughout the vehicle's underbody, making it difficult for existing firefighting equipment to supply sufficient water to the battery. Furthermore, battery fires in electric vehicles occur at extremely high temperatures, and chemical reactions within the battery increase the risk of re-ignition. This necessitates constant monitoring and additional firefighting operations after the fire is extinguished, reducing the effectiveness of firefighting efforts and threatening firefighter safety.

[0007] These characteristics of electric vehicle fires necessitate the development of new firefighting equipment. In particular, a firefighting water supply system capable of quickly and effectively extinguishing electric vehicle fires is required. Such a system must concentrate the water supply to the battery compartment of the electric vehicle to minimize the risk of re-ignition, and evenly distribute the water throughout the vehicle to quickly extinguish the fire.

[0008]

[0009] The technical problem to be achieved by the present invention is to solve the problems or needs as described above, and to provide an electric vehicle fire hose nozzle that can quickly extinguish a fire by evenly spraying fire extinguishing water over the entire vehicle based on the bottom surface of the vehicle, reflecting the special nature of electric vehicle fires, thereby maximizing the efficiency of fire extinguishing water spraying, effectively cooling the entire vehicle including the battery pack.

[0010] Another object of the present invention is to provide a fire water inlet (100) in which a fire water inlet hole (110) and a fire water inlet pipe (120) having an inlet diameter (111) are formed to be connected to a fire water supply hose (H) of a fire hydrant or a fire truck, and a hose coupling means (130) is provided on the outside of the fire water inlet pipe (120) so as to be radially formed to be connected to the hose (H), and a main pipe (210) having a main diameter (211) smaller than the inlet diameter (111) is provided in a length corresponding to the front-rear length of a fire fighting vehicle in parallel with the direction in which the fire water inlet hole (110) and the hose (H) are connected, and a main flow hole (220) is formed inside to be connected to the fire water inlet hole (110), and a main spray nozzle (230) is provided in plurality at a predetermined interval on the upper portion of the main pipe (210). The aim is to provide an electric vehicle fire hose nozzle that can quickly supply fire water to the underside of an electric vehicle through the Euro (200).

[0011] Another object of the present invention is to provide a first branch passage section (300) having a length corresponding to the width of a fire fighting vehicle in a direction perpendicular to the direction of travel of the main passage section (200), a first branch passage hole (320) formed inside to be connected to the main passage hole (220) with the same diameter as the main diameter (211), and a plurality of first branch nozzles (330) provided on the upper portion, and a second branch passage section (410) provided at a predetermined distance from the first branch passage section (300) in a direction perpendicular to the direction of travel of the main passage section (200), a second branch passage hole (420) formed inside to be connected to the main passage hole (220) with the same diameter as the main diameter (211), and a plurality of second branch nozzles (430) provided on the upper portion. The third branch pipe (510) is provided in a direction perpendicular to the direction of progress of the main flow path (200) at a predetermined distance from the second branch flow path (400), and a third branch flow hole (520) is formed inside so as to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of third branch nozzles (530) are provided on the upper portion of the third branch flow path (500), and a wheel coupling means (610) coupled to the third branch flow path (500) at both ends of the third branch flow path (500) and a wheel (630) rotated by a wheel axle (620) are provided to provide an electric vehicle fire hose nozzle that sprays fire water horizontally and vertically on the bottom of the electric vehicle and is convenient to move.

[0012] Another object of the present invention is to provide a main flow path (200) in which a main nozzle coupling protrusion (240) is formed with a first main nozzle coupling thread (241) so that the main injection nozzle (230) is screw-coupled to the upper portion of the main pipe (210), and a second main nozzle coupling thread (231) corresponding to the first main nozzle coupling thread (241) is formed on the lower outer surface of the main injection nozzle (230), and a first main nozzle injection material (232) and a second main nozzle injection material (233) are arranged at the upper and lower portions of the main injection nozzle (230) so that the fire-fighting water discharged through the main injection nozzle (230) rotates and is sprayed upward, and the first and second main nozzle injection materials (232, 233) are both disposed in the main flow path hole (220). The main flow communication hole (234) is formed, and the upper end of the first main nozzle sprayer (232) is provided with a nozzle diffusion wing member (235) screw-connected to the center of the second main nozzle sprayer (233), so that firefighting water is rotated and sprayed from the bottom of the vehicle, thereby improving firefighting efficiency, and an electric vehicle firefighting nozzle is provided.

[0013] Another object of the present invention is to provide an electric vehicle fire hose nozzle, in which the main nozzle coupling hole (242) is provided in a tapered shape with a narrow upper and lower radial angle so that fire water is ejected only when the pressure of the fire water supplied to the main injection nozzle (230) from the main nozzle coupling hole (242) arranged at the center of the main nozzle coupling protrusion (240) of the main flow path section (200) is above a certain level, and a buffer hole (243) is provided at a position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet so as to surround the main nozzle coupling hole (242) by 360° and supply fire water to the vehicle battery location when the pressure is above a certain level.

[0014] Another object of the present invention is to provide an electric vehicle fire sprinkler nozzle, which further includes an expansion pipe (710) which is connected to the first and second branch flow path holes (320, 420) at both ends of the first branch flow path (300) and the second branch flow path (400), and an expansion pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other, and a plurality of expansion nozzles (730) are arranged on the upper portion of the expansion pipe (720) so as to be directed toward an electric vehicle to be extinguished, and the expansion nozzles (730) are arranged at an angle so that the fire spray water is directed toward the center of the vehicle, thereby improving the fire extinguishing efficiency on the side of the vehicle.

[0015] Another object of the present invention is to provide an electric vehicle fire hose nozzle, which is convenient for movement and fixation for fire suppression, in which the expansion pipe (700) is provided with a telescopic pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that the expansion pipe (710) can be extended to the outside of the wheels of a fire vehicle when expanded by the pressure of fire water, a holding means (212) is coupled to the side of the main pipe (210), a gate valve (121) is provided at the middle position of the fire water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510).

[0016]

[0017] Meanwhile, the technical tasks to be achieved in the present invention are not limited to the technical tasks mentioned above, and other technical tasks not mentioned can be clearly understood by a person having ordinary knowledge in the technical field to which the present invention belongs from the description below.

[0018]

[0019] An electric vehicle fire hose nozzle related to an example of the present invention for realizing the above-described task may first include a fire water inlet portion (100) in which a fire water inlet hole (110) having an inlet diameter (111) and a fire water inlet pipe (120) are formed to be connected to a fire water supply hose (H) of a fire hydrant or a fire truck, and a hose coupling means (130) is formed radially on the outside of the fire water inlet pipe (120) to be coupled with the hose (H).

[0020] Here, a main pipe (210) having a main diameter (211) smaller than the inflow diameter (111) is provided in a length corresponding to the front-rear length of a fire fighting vehicle in parallel with the direction in which the fire fighting water inlet (110) and the hose (H) are coupled, and a main flow path (220) communicating with the fire fighting water inlet (110) is formed inside, and a main injection nozzle (230) is provided in multiple numbers at a predetermined interval on the upper portion of the main pipe (210).

[0021] Here, a first branch pipe (310) is provided in a direction perpendicular to the direction of progress of the main flow path (200) with a length corresponding to the width of the fire fighting vehicle, and a first branch flow path hole (320) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a first branch flow path part (300) having a plurality of first branch nozzles (330) provided on the upper part may be included.

[0022] In addition, the second branch pipe (410) is provided in a direction perpendicular to the direction of progress of the main flow path (200) and spaced apart from the first branch flow path (300) by a predetermined distance, and a second branch flow path hole (420) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a second branch flow path part (400) having a plurality of second branch nozzles (430) provided on the upper part may be included.

[0023] In addition, a third branch pipe (510) is provided in a direction perpendicular to the direction of progress of the main flow path (200) at a predetermined distance from the second branch flow path (400), and a third branch flow path hole (520) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a third branch flow path part (500) having a plurality of third branch nozzles (530) provided on the upper part may be included.

[0024] And, it may include a wheel rolling part (600) having a wheel coupling means (610) coupled to the third branch euro part (500) at both ends of the third branch euro part (500) and a wheel (630) that rotates with a wheel axle (620).

[0025] Here, the main euro section (200) may be characterized in that a main nozzle coupling protrusion (240) is arranged on the upper portion of the main pipe (210) so that the main injection nozzle (230) is screw-coupled to the first main nozzle coupling screw thread (241).

[0026] At this time, a second main nozzle coupling screw thread (231) corresponding to the first main nozzle coupling screw thread (241) is formed on the lower outer surface of the main injection nozzle (230), and a first main nozzle injection material (232) and a second main nozzle injection material (233) are arranged at the upper and lower portions of the main injection nozzle (230) so that the fire-fighting water discharged through the main injection nozzle (230) rotates and is sprayed upward, and the first and second main nozzle injection materials (232, 233) are both formed with a main flow communication hole (234) that is connected to the main flow hole (220), and a nozzle diffusion wing member (235) that is screw-connected to the center of the second main nozzle injection material (233) is provided at the upper end of the first main nozzle injection material (232). It can be characterized as follows.

[0027] Meanwhile, the main flow path (200) may be characterized in that the main nozzle coupling hole (242) is provided in a tapered shape with a narrow upper and lower angle so that the fire water is ejected only when the pressure of the fire water supplied to the main injection nozzle (230) from the main nozzle coupling hole (242) located at the center of the main nozzle coupling protrusion (240) is above a certain level.

[0028] In addition, it may be characterized in that a buffer hole (243) is provided at a position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet to surround the main nozzle coupling hole (242) at 360°.

[0029] In addition, an expansion pipe (710) connected to the first and second branch flow paths (320, 420) at both ends of the first branch flow path (300) and the second branch flow path (400) and an expansion pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other may be further included as an expansion pipe (700).

[0030] At this time, a plurality of expansion nozzles (730) are arranged on the upper portion of the expansion pipe (720) so as to be directed toward the electric vehicle to be fire-fighted, and the expansion nozzles (730) may be characterized in that they are arranged at an angle so that the fire-fighting water is directed toward the center of the vehicle.

[0031] Here, the expansion pipe section (700) may be characterized by being provided with a flexible pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that the expansion pipe (710) can be extended to the outside of the wheels of a fire vehicle when expanded by the pressure of fire fighting water.

[0032] In addition, it may be characterized in that a holding means (212) is coupled to the side of the main pipe (210), a gate valve (121) is provided at a middle position of the fire water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510).

[0033]

[0034] Accordingly, the present invention provides an electric vehicle fire hose nozzle,

[0035] First, the fire extinguishing agent is sprayed evenly across the entire vehicle based on the bottom surface where the battery pack is installed, maximizing the efficiency of the fire extinguishing agent spraying, effectively cooling the entire vehicle, including the battery pack, to quickly extinguish the fire.

[0036] Second, a fire water inlet hole (110) and a fire water inlet pipe (120) having an inlet diameter (111) are formed to be connected to a fire hydrant or a fire truck's fire water supply hose (H), and a hose coupling means (130) is provided on the outside of the fire water inlet pipe (120) in a radial direction to be connected to the hose (H), and a main pipe (210) having a main diameter (211) smaller than the inlet diameter (111) is provided in a length corresponding to the front-rear length of the fire fighting vehicle in parallel with the direction in which the fire water inlet hole (110) and the hose (H) are connected, and a main flow path (220) is formed inside to be connected to the fire water inlet hole (110), and a main spray nozzle (230) is provided in multiple numbers at a predetermined interval on the upper part of the main pipe (210). It has the effect of quickly supplying fire water to the underbody of an electric vehicle.

[0037] Third, a first branch pipe (310) is provided in a direction perpendicular to the direction of travel of the main flow path (200) with a length corresponding to the width of the fire fighting vehicle, and a first branch flow hole (320) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of first branch nozzles (330) are provided on the upper portion of the first branch flow path part (300), and a second branch pipe (410) is provided in a direction perpendicular to the direction of travel of the main flow path part (200) at a predetermined distance from the first branch flow path part (300), and a second branch flow hole (420) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of second branch nozzles (430) are provided on the upper portion of the second branch flow path part (400), and the A third branch pipe (510) is provided in a direction perpendicular to the direction of progress of the main flow path (200) and spaced apart from the second branch flow path (400) by a predetermined distance, and a third branch flow hole (520) is formed inside so as to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of third branch nozzles (530) are provided on the upper portion of the third branch flow path (500), and a wheel coupling means (610) coupled to the third branch flow path (500) at both ends of the third branch flow path (500) and a wheel (630) rotated by a wheel axle (620) are provided to spray fire water in a horizontal and vertical direction on the bottom of the electric vehicle and to facilitate movement.

[0038] Fourth, the main flow path (200) is provided with a main nozzle coupling protrusion (240) having a first main nozzle coupling thread (241) formed therein so that the main injection nozzle (230) is screw-coupled to the upper portion of the main pipe (210), and a second main nozzle coupling thread (231) corresponding to the first main nozzle coupling thread (241) is formed on the lower outer surface of the main injection nozzle (230), and the first main nozzle injection material (232) and the second main nozzle injection material (233) are arranged at the upper and lower portions of the main injection nozzle (230) so that the fire-fighting water discharged through the main injection nozzle (230) rotates and is sprayed upward, and the first and second main nozzle injection materials (232, 233) are both connected to the main flow path (220). A main flow path (234) is formed, and a nozzle diffusion wing member (235) screw-connected to the center of the second main nozzle sprayer (233) at the upper end of the first main nozzle sprayer (232) causes firefighting water to rotate and spray from the bottom of the vehicle, thereby increasing firefighting efficiency.

[0039] Fifth, the main flow path section (200) is provided with a main nozzle coupling hole (242) arranged at the center of the main nozzle coupling protrusion (240) so that the fire water supplied to the main injection nozzle (230) is ejected only when the pressure of the fire water is above a certain level, and the main nozzle coupling hole (242) is provided with a tapered shape in a narrow-bottomed shape, and at a position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet, a buffer hole (243) surrounds the main nozzle coupling hole (242) by 360° so that when the pressure is above a certain level, that is, when the pressure is above a certain level, the fire water is sufficiently supplied to the vehicle battery location.

[0040] Sixth, the expansion pipe (710) which is connected to the first and second branch flow paths (320, 420) at both ends of the first branch flow path (300) and the second branch flow path (400) and the expansion pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other is further included; wherein a plurality of expansion nozzles (730) are arranged on the upper portion of the expansion pipe (720) so as to be directed toward the electric vehicle to be extinguished, and the expansion nozzles (730) are arranged at an angle so that the fire-fighting water is directed toward the center of the vehicle, thereby improving the fire-extinguishing efficiency on the side of the vehicle.

[0041] Seventh, the expansion pipe section (700) is provided with a flexible pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that the expansion pipe (710) can be extended to the outside of the wheels of a fire vehicle when expanded by the pressure of fire fighting water, and a holding means (212) is coupled to the side of the main pipe (210), a gate valve (121) is provided at the middle position of the fire fighting water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510), so that movement and fixation for fire suppression are convenient.

[0042]

[0043] Meanwhile, the effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0044]

[0045] The following drawings attached to this specification illustrate preferred embodiments of the present invention and, together with the detailed description of the invention, serve to further understand the technical idea of ​​the present invention, and therefore, the present invention should not be interpreted as being limited to matters described in such drawings.

[0046] Figures 1 to 3 are drawings showing the overall configuration of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0047] Figure 4 is a drawing showing a fire water inlet section of an electric vehicle fire water nozzle according to a preferred embodiment of the present invention.

[0048] Figures 2 to 8 are drawings showing the main flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0049] Figures 9 to 12 are drawings showing in more detail the main flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0050] Figures 13 to 17 are drawings showing an expanded path section of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0051] Figures 18 to 20 are drawings showing in more detail the expanded flow path portion of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0052]

[0053] Any specific structural or functional descriptions of embodiments according to the concept of the present invention disclosed in this specification are merely illustrative for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and are not limited to the embodiments described in this specification.

[0054] Embodiments according to the concept of the present invention may have various modifications and take various forms, and thus, embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, but rather includes all modifications, equivalents, or alternatives falling within the spirit and technical scope of the present invention.

[0055]

[0056] FIGS. 1 to 3 are drawings showing the overall configuration of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention, FIG. 4 is a drawing showing a fire water inlet of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention, FIGS. 2 to 8 are drawings showing a main flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention, FIGS. 9 to 12 are drawings showing in more detail the main flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention, FIGS. 13 to 17 are drawings showing an expansion flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention, and FIGS. 18 to 20 are drawings showing in more detail the expansion flow path of an electric vehicle fire hose nozzle according to a preferred embodiment of the present invention.

[0057]

[0058] An electric vehicle fire hose nozzle according to one embodiment of the present invention first has a fire water inlet hole (110) and a fire water inlet pipe (120) formed with an inlet diameter (111) to be connected to a fire water supply hose (H) of a fire hydrant or a fire truck, and a hose coupling means (130) formed radially on the outside of the fire water inlet pipe (120) to be coupled with the hose (H) to receive fire water into a fire water inlet portion (100). At this time, it is preferable that the inlet diameter (111) be provided with a length corresponding to that of a hose to which fire water is supplied.

[0059] Here, a main pipe (210) having a main diameter (211) smaller than the inflow diameter (111) is provided in a length corresponding to the front-rear length of a fire-fighting vehicle in parallel with the direction in which the fire-fighting water inlet (110) and the hose (H) are coupled, and a main flow path (220) communicating with the fire-fighting water inlet (110) is formed inside, and a main injection nozzle (230) is provided in multiple numbers at a predetermined interval on the upper portion of the main pipe (210) to spray fire-fighting water from a central position in the front-rear length direction of the vehicle.

[0060] Here, a first branch pipe (310) is provided with a length corresponding to the width of the fire fighting vehicle in a direction perpendicular to the direction of progress of the main flow path section (200), and a first branch flow hole (320) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of first branch nozzles (330) are provided on the upper portion of the first branch flow path section (300), and a second branch pipe (410) is provided in a direction perpendicular to the direction of progress of the main flow path section (200) at a predetermined distance from the first branch flow path section (300), and a second branch flow hole (420) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of second branch nozzles (430) are provided on the upper portion of the second branch flow path section (400), and the A third branch pipe (510) is provided in a direction perpendicular to the direction of progress of the main flow path (200) and spaced apart from the second branch flow path (400) by a predetermined distance, and a third branch flow path hole (520) is formed inside so as to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a plurality of third branch nozzles (530) are provided at the upper portion of the third branch flow path part (500) to spray fire fighting water in the horizontal direction of the bottom of the vehicle.

[0061] In addition, the mobility of the main nozzle of the present invention is increased by a wheel rolling part (600) having a wheel coupling means (610) coupled to the third branch section (500) at both ends of the third branch section (500) and a wheel (630) that rotates with a wheel axle (620).

[0062] Here, the main flow path (200) is provided with a main nozzle coupling protrusion (240) having a first main nozzle coupling thread (241) formed therein so that the main injection nozzle (230) is screw-coupled to the upper portion of the main pipe (210), and a second main nozzle coupling thread (231) corresponding to the first main nozzle coupling thread (241) is formed on the lower outer surface of the main injection nozzle (230), and the first main nozzle injection material (232) and the second main nozzle injection material (233) are arranged at the upper and lower portions of the main injection nozzle (230) so that the fire-fighting water discharged through the main injection nozzle (230) rotates and is sprayed upward, and the first and second main nozzle injection materials (232, 233) are both connected to the main flow path (220). A main flow path (234) is formed, and a nozzle diffusion wing member (235) is formed at the upper end of the first main nozzle spray (232) and is screw-connected to the center of the second main nozzle spray (233), so that firefighting water is sprayed in an upward rotational manner, thereby improving firefighting efficiency.

[0063] At this time, it is preferable that the second main nozzle spray material (233) is made of an elastic material that can be swayed by the water pressure of the firefighter so that the firefighter can more easily rotate and spray upward, and furthermore, a spiral groove (233a) in a spiral shape is provided.

[0064] Meanwhile, the main flow path (200) is configured to be tapered in a convex-to-convex shape so that fire water is ejected only when the pressure of fire water supplied to the main spray nozzle (230) from the main nozzle coupling hole (242) arranged at the center of the main nozzle coupling protrusion (240) is above a certain level, and a buffer hole (243) is configured to surround the main nozzle coupling hole (242) at a position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet so as to surround the main nozzle coupling hole (242) by 360° so that fire water can be ejected only when the ejection pressure of the fire water is sufficient.

[0065] On the other hand, the expansion pipe (710) which is connected to the first and second branch flow paths (320, 420) at both ends of the first branch flow path (300) and the second branch flow path (400) and the expansion pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other is included to spray fire water to the side of the vehicle, and a plurality of expansion nozzles (730) are arranged on the upper part of the expansion pipe (720) so as to be directed toward the electric vehicle to be fire-fighted, and the expansion nozzles (730) are arranged at an angle so that the fire water spray is directed toward the center of the vehicle, so as to form a fire water stream that rotates upward toward the vehicle.

[0066] At this time, it is preferable that the end of the expansion pipe (710) is further provided with a first anti-removal ring (740) larger than the diameter of the expansion pipe (710), and that the end of the first and second branch flow passages (320, 420) is further provided with a second anti-removal ring (750) that comes into contact with the first anti-removal ring (740) to prevent the expansion pipe (710) from being removed from the first and second branch flow passages (320, 420) when the expansion pipe (710) moves forward due to water pressure.

[0067] Here, a diffusion cap (731) is further provided at the end of the expansion nozzle (730) to enable the fire extinguishing agent sprayed through the expansion nozzle (730) to be diffused. At this time, it is preferable that the diffusion cap (731) be formed with a plurality of injection holes (731a) in the shape of a narrow upper and lower beam.

[0068] Here, the expansion path section (700) is provided with a flexible pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that the expansion pipe (710) can be extended to the outside of the wheels of a fire vehicle when expanded by the pressure of fire fighting water, a holding means (212) is coupled to the side of the main pipe (210), a gate valve (121) is provided at the middle position of the fire fighting water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510) to absorb a certain portion of the swaying generated when the fire fighting water is sprayed.

[0069]

[0070] By using the electric vehicle fire hose nozzle of the present invention described above through one embodiment, fire extinguishing water is evenly sprayed over the entire vehicle based on the bottom surface of the vehicle where the battery pack is installed, thereby maximizing the fire extinguishing water spraying efficiency, effectively cooling the entire vehicle including the battery pack to quickly extinguish the fire, and a fire extinguishing water inlet hole (110) and a fire extinguishing water inlet pipe (120) having an inlet diameter (111) are formed to be connected to a fire extinguishing water supply hose (H) of a fire hydrant or a fire truck, and a hose coupling means (130) is provided on the outside of the fire extinguishing water inlet pipe (120) so as to be radially formed and coupled with the hose (H), and a main pipe (210) having a main diameter (211) smaller than the inlet diameter (111) is provided in a length corresponding to the front-rear length of the vehicle to be extinguished, and inside, a main pipe (210) having a main diameter (211) smaller than the inlet diameter (111) is provided in parallel with the direction in which the fire extinguishing water inlet hole (110) and the hose (H) are coupled is provided. A main flow path (220) is formed, and a plurality of main injection nozzles (230) are provided at predetermined intervals on the upper portion of the main pipe (210) to quickly supply fire water to the lower portion of the electric vehicle, and a first branch pipe (310) is provided in a direction perpendicular to the direction of movement of the main flow path (200) with a length corresponding to the width of the vehicle to be fire-fighted, and a first branch flow path (320) is formed inside to communicate with the main flow path (220) with the same diameter as the main diameter (211), and a first branch flow path (300) having a plurality of first branch nozzles (330) is provided on the upper portion, and a second branch pipe (410) is provided in a direction perpendicular to the direction of movement of the main flow path (200) at predetermined intervals, and inside, a second branch pipe (410) is provided with the same diameter as the main diameter (211). A second branch flow path (420) is formed to be connected to the main flow path (220).A second branch flow section (400) having a plurality of second branch nozzles (430) at the upper part and a third branch pipe (510) spaced apart from the second branch flow section (400) at a predetermined distance in a direction perpendicular to the direction of travel of the main flow section (200) are provided, and a third branch flow hole (520) is formed inside so as to be connected to the main flow hole (220) with the same diameter as the main diameter (211), and a third branch flow section (500) having a plurality of third branch nozzles (530) at the upper part and a wheel rolling section (600) having a wheel coupling means (610) coupled to the third branch flow section (500) at both ends of the third branch flow section (500) and a wheel (630) rotated by a wheel axle (620) is provided to spray fire water horizontally and vertically on the bottom of the electric vehicle and to facilitate movement, and the main The guiding member (200) is provided with a main nozzle coupling protrusion (240) having a first main nozzle coupling thread (241) formed therein so that the main injection nozzle (230) is screw-coupled to the upper portion of the main pipe (210), and a second main nozzle coupling thread (231) corresponding to the first main nozzle coupling thread (241) is formed on the lower outer surface of the main injection nozzle (230), and the first main nozzle injection material (232) and the second main nozzle injection material (233) are arranged at the upper and lower portions of the main injection nozzle (230) so that the fire-fighting water discharged through the main injection nozzle (230) rotates and is sprayed upward, and the first and second main nozzle injection materials (232, 233) are both connected to the main guiding member (220). A main flow path (234) is formed, and a nozzle diffusion wing member (235) screw-joined to the center of the second main nozzle spray material (233) at the upper end of the first main nozzle spray material (232) rotates and sprays fire water from the bottom of the vehicle, thereby increasing firefighting efficiency, and the main flow path section (200) is arranged so that fire water is sprayed only when the pressure of fire water supplied to the main spray nozzle (230) from the main nozzle coupling hole (242) arranged at the center of the main nozzle coupling protrusion (240) is above a certain level.The main nozzle coupling hole (242) is provided in a tapered shape with a narrow upper and lower side, and a buffer hole (243) surrounds the main nozzle coupling hole (242) at a position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet, so that when a certain pressure is higher than the pressure, fire water is sufficiently supplied to the vehicle battery location, and an expansion pipe (710) connected to the first and second branch flow holes (320, 420) at both ends of the first branch flow path (300) and the second branch flow path (400) and an expansion flow pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other are further included; and a plurality of expansion nozzles (730) are arranged on the upper portion of the expansion flow pipe (720) so as to be directed toward the electric vehicle to be fire-fighted, and the expansion nozzles (730) are configured to spray fire water. It is arranged at an angle toward the center of the vehicle to improve the fire extinguishing efficiency on the side of the vehicle, and the expansion path part (700) is provided with a flexible pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that the expansion pipe (710) can be extended to the outside of the wheels of the fire vehicle when the expansion pipe (710) is expanded by the pressure of the fire fighting water, and a holding means (212) is coupled to the side of the main pipe (210), and a gate valve (121) is provided at the middle position of the fire fighting water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510), so that movement and fixation of fire suppression are convenient.

[0071]

[0072] The present invention has been described above through preferred embodiments, but the above-described embodiments are merely illustrative of the technical idea of ​​the present invention, and it will be understood by those skilled in the art that various changes may be made without departing from the technical idea of ​​the present invention. Therefore, the scope of protection of the present invention should be interpreted not by specific embodiments, but by the matters described in the claims, and all technical ideas within the corresponding scope should be interpreted as being included in the scope of the rights of the present invention.

[0073] [Explanation of symbols]

[0074] 100 ... fire water inlet

[0075] 110 ... Firefighting water inlet

[0076] 111 ... inlet diameter

[0077] 120 ... fire water inlet pipe

[0078] 121 ... gate valve

[0079] 130 ... hose coupling means

[0080] 200 ... Main Euro

[0081] 210 ... Main Hall

[0082] 211 ... main diameter

[0083] 212 ... means of destruction

[0084] 213 ... anti-sway member

[0085] 231 ... anti-sway member

[0086] 220 ... Main Eurocopter

[0087] 230 ... main injection nozzle

[0088] 231 ... Second main nozzle coupling screw thread

[0089] 232 ... No. 1 main nozzle spray material

[0090] 233 ... 2nd main nozzle spray material

[0091] 234 ... Main Euro-Yonhap

[0092] 235 ... nozzle diverging wing member

[0093] 240 ... Main nozzle joint protrusion

[0094] 241... 1st main nozzle coupling screw thread

[0095] 242 ... Main nozzle joint

[0096] 243 ... buffer hole

[0097] 300... First quarter Eurozone

[0098] 310... 1st branch

[0099] 320... First quarter Eurozone

[0100] 330... 1st quarter nozzle

[0101] 400...2nd quarter Eurozone

[0102] 410 ... 2nd branch

[0103] 420... 2nd quarter Eurozone

[0104] 430...2nd quarter nozzle

[0105] 500...3rd quarter Eurozone

[0106] 510... Third branch

[0107] 520... 3rd quarter Eurozone

[0108] 530... 3rd quarter nozzle

[0109] 600 ... wheel cloud

[0110] 610 ... wheel coupling means

[0111] 620 ... wheel axle

[0112] 630 ... wheel

[0113] 700 ... extended Eurozone

[0114] 710 ... extension tube

[0115] 711 ... New pipe

[0116] 720 ... extended Euro zone

[0117] 730 ... extension nozzle

Claims

1. A fire water inlet portion (100) having a fire water inlet hole (110) and a fire water inlet pipe (120) having an inlet diameter (111) so as to be connected to a fire water supply hose (H) of a fire hydrant or a fire truck, and a hose coupling means (130) formed radially on the outside of the fire water inlet pipe (120) so as to be coupled with the hose (H); A main pipe (210) having a main diameter (211) smaller than the inflow diameter (111) and having a length corresponding to the front-rear length of a fire fighting vehicle is provided in parallel with the direction in which the fire fighting water inlet (110) and the hose (H) are connected, and a main flow path (220) connected to the fire fighting water inlet (110) is formed inside, and a main injection nozzle (230) is provided in multiple numbers at predetermined intervals on the upper portion of the main pipe (210). A first branch pipe (310) is provided with a length corresponding to the width of the fire fighting vehicle in a direction perpendicular to the direction of progress of the main flow path (200), and a first branch flow path hole (320) is formed inside so as to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a first branch flow path part (300) having a plurality of first branch nozzles (330) provided on the upper part; A second branch pipe (410) is provided in a direction perpendicular to the direction of progress of the main flow path (200) and spaced apart from the first branch flow path (300) by a predetermined distance, and a second branch flow path hole (420) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a second branch flow path part (400) having a plurality of second branch nozzles (430) provided on the upper portion; A third branch pipe (510) is provided in a direction perpendicular to the direction of progress of the main flow path (200) and spaced apart from the second branch flow path (400) by a predetermined distance, and a third branch flow path hole (520) is formed inside to be connected to the main flow path hole (220) with the same diameter as the main diameter (211), and a third branch flow path part (500) having a plurality of third branch nozzles (530) provided on the upper part; and A wheel rolling part (600) including a wheel coupling means (610) coupled to the third branch euro part (500) at both ends of the third branch euro part (500) and a wheel (630) that rotates with a wheel axle (620); Electric vehicle fire hose nozzle.

2. In paragraph 1, The above main euro section (200) is provided with a main nozzle coupling protrusion (240) having a first main nozzle coupling screw thread (241) formed therein so that the main injection nozzle (230) is screw-coupled to the upper portion of the main pipe (210). On the lower outer surface of the main injection nozzle (230), a second main nozzle coupling thread (231) corresponding to the first main nozzle coupling thread (241) is formed. The main nozzle (230) is characterized in that the first main nozzle spray material (232) and the second main nozzle spray material (233) are arranged at the upper and lower portions inside the main nozzle (230) so that the fire-fighting spray water discharged through the main spray nozzle (230) rotates and sprays upward, and the first and second main nozzle spray materials (232, 233) are both formed with a main flow path communication hole (234) that is connected to the main flow path hole (220), and the upper end of the first main nozzle spray material (232) is provided with a nozzle diffusion wing member (235) that is screw-connected to the center of the second main nozzle spray material (233). Electric vehicle fire hose nozzle.

3. In the second paragraph, the main euro section (200) is In order to ensure that fire water is ejected only when the pressure of fire water supplied to the main spray nozzle (230) from the main nozzle coupling hole (242) located at the center of the main nozzle coupling protrusion (240) is above a certain level, the main nozzle coupling hole (242) is provided to be tapered in a shape of a narrow upper and lower beam. It is characterized in that a buffer hole (243) is provided at the position where the lower end of the main nozzle coupling hole (242) and the main pipe (210) meet to surround the main nozzle coupling hole (242) by 360°. Electric vehicle fire hose nozzle.

4. In paragraph 3, An expansion pipe (710) connected to the first and second branch passages (320, 420) at both ends of the first branch passage (300) and the second branch passage (400) and an expansion pipe (720) in which the outer sides of the expansion pipe (710) are connected to each other, and an expansion passage section (700) is further included; A plurality of expansion nozzles (730) are arranged on the upper part of the above expansion pipe (720) so as to be directed toward the electric vehicle to be fire-fighted, and the expansion nozzles (730) are characterized in that they are arranged at an angle so that the fire-fighting water is directed toward the center of the vehicle. Electric vehicle fire hose nozzle.

5. In paragraph 4, The above expansion euro section (700) is The above expansion pipe (710) is characterized in that it is provided with a flexible pipe (711) having a predetermined length in the middle of the expansion pipe (710) so that it can be extended to the outside of the fire vehicle wheel when expanded by the pressure of fire fighting water. Electric vehicle fire hose nozzle.

6. In paragraph 5, A holding means (212) is coupled to the side of the main pipe (210), a gate valve (121) is provided at the middle position of the fire water inlet pipe (120), and a plurality of anti-sway members (213) are provided on the bottom surfaces of the main pipe (210) and the first, second, and third branch pipes (310, 410, 510). Electric vehicle fire hose nozzle.

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