Fire-fighting lance

Abstract

The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting lance. The fire-fighting lance comprises a water conveying pipe and a water spraying assembly. The first end of the water pipe is connected with the hose; water curtain nozzles are arranged on the water conveying pipes and used for spraying water out of the water wall, and the plane where the water wall is located is perpendicular to the water conveying pipes. And the water spraying assembly comprises a water spraying pipe and a rotating spray head, the water spraying pipe is installed at the second end of the water conveying pipe, and the rotating spray head is installed on the water spraying pipe and used for spraying water conveyed by the water conveying pipe so as to cool and / or extinguish the target area. According to the fire-fighting lance, the water curtain spray head is arranged on the water conveying pipe, so that when a firefighter carries out fire fighting on a target area through the rotary spray head on the fire-fighting lance, a water wall sprayed by the water curtain spray head can isolate the firefighter from a fire point, and the danger that the firefighter is burnt in the fire fighting process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting water gun. Background Art

[0002] Most fires in new energy electric vehicles are caused by explosions or combustion due to thermal runaway inside the batteries. In addition, the batteries of new energy electric vehicles are prone to explosion during the fire extinguishing process, which can cause firefighters to be burned by battery explosions.

[0003] Therefore, a fire hose that can reduce the risk of firefighters being burned during firefighting of new energy electric vehicles is in urgent need of research. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the utility model provides a fire hose, which can isolate the firefighters from the fire point by using the water wall sprayed out by the water curtain nozzle during the firefighting process, so as to reduce the risk of burns to the firefighters during the firefighting process.

[0006] A fire-fighting water gun according to an embodiment of the present invention includes:

[0007] A water pipe, a first end of which is connected to a water hose; a water curtain nozzle is provided on the water pipe, the water curtain nozzle is used to spray a water wall, and the plane where the water wall is located is perpendicular to the water pipe;

[0008] The water spray assembly includes a water spray pipe and a rotating nozzle. The water spray pipe is installed at the second end of the water supply pipe. The rotating nozzle is installed on the water spray pipe. The rotating nozzle is used to spray the water transported by the water supply pipe to cool the target area and / or extinguish the fire.

[0009] Optionally, the water spray pipe comprises:

[0010] A first connecting pipe is coaxially arranged with the water pipe, and a first end of the first connecting pipe is connected to the water pipe;

[0011] The second connecting pipe has an axial direction perpendicular to that of the first connecting pipe, and the second end of the first connecting pipe is connected to the second connecting pipe; the rotating spray head is installed on the second connecting pipe.

[0012] Optionally, the bottom side of the water delivery pipe, the bottom side of the first connecting pipe and the bottom side of the second connecting pipe are located on the same plane.

[0013] Optionally, the second end of the first connecting pipe is connected to the pipe wall near the middle position of the second connecting pipe; and a rotating nozzle is installed at a position near the end of the second connecting pipe.

[0014] Optionally, the rotary sprinkler includes:

[0015] An installation shaft seat is provided on the second connecting pipe;

[0016] The nozzle seat is mounted on the mounting shaft seat and can rotate axially on the mounting shaft seat;

[0017] The first nozzles, at least three first nozzles are distributed on the side of the nozzle seat, and at least three first nozzles are connected to the inner cavity of the nozzle seat; the spraying direction of the at least three first nozzles is 35° to 60° horizontally upward.

[0018] Optionally, the second connecting pipe is provided with an auxiliary water spray assembly, which includes:

[0019] a third connecting pipe, connected to the second connecting pipe;

[0020] The second nozzle is arranged on the third connecting pipe and is used for spraying an upward high-pressure water flow.

[0021] Optionally, the third connecting pipe is vertically arranged on the second connecting pipe, and the second nozzle is located at an end of the third connecting pipe away from the second connecting pipe.

[0022] Optionally, the water spray pipe and the water delivery pipe are detachably connected through threaded engagement.

[0023] Optionally, the first end of the water pipe is provided with a quick connector for detachably connecting to a water hose.

[0024] Optionally, a water gun switch is provided on the water pipe, and the water gun switch is used to control the on-off between the water hose and the water pipe.

[0025] One of the above technical solutions has at least the following advantages or beneficial effects:

[0026] For a fire hose in an embodiment of the present invention, by arranging a water curtain nozzle on the water supply pipe, when firefighters extinguish fires in a target area through the rotating nozzle on the fire hose, the water wall sprayed by the water curtain nozzle can isolate the firefighters from the fire point, thereby reducing the risk of firefighters being burned during the firefighting process.

[0027] The comprehensive mining equipment provided by the embodiment of the present invention is provided with the above-mentioned fire hose. Since the fire hose has the above-mentioned technical effects, the comprehensive mining equipment provided with the fire hose should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of a fire-fighting water gun according to an embodiment of the present invention is shown;

[0029] Figure 2An exploded view of a fire-fighting water gun according to an embodiment of the present invention is shown;

[0030] Figure 3 A structural schematic diagram of a fire-fighting water gun according to another embodiment of the present invention is shown.

[0031] [Description of Reference Numerals]

[0032] 1. Water pipe;

[0033] 2. Water spray assembly, 201. Water spray pipe, 202. Rotating nozzle, 2011. First connecting pipe, 2012. Second connecting pipe, 2021. Mounting shaft seat, 2022. Nozzle seat, 2023. First nozzle;

[0034] 3. Water curtain nozzle;

[0035] 4. Auxiliary water spray assembly, 401, third connecting pipe, 402, second nozzle;

[0036] 5. Fast interface;

[0037] 6. Water gun switch;

[0038] 7. Extension tube. DETAILED DESCRIPTION

[0039] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0040] Fire hose is a kind of fire-fighting equipment widely used at fire scene. It is connected to fire truck / pump through water hose and sprays water at high speed for fire-fighting or cooling protection operations. It is an important equipment for fire fighting brigades to fight fires.

[0041] Most fires in new energy electric vehicles are caused by thermal runaway of the batteries, which cause explosions or combustion. Most batteries are located at the bottom of the car. Although there are fire hoses that can spray on burning batteries, the batteries of new energy electric vehicles are prone to explosion during the fire extinguishing process, which can easily cause firefighters to be injured by battery explosions.

[0042] In order to solve at least one of the technical problems existing in the prior art or related art, the present invention provides a fire hose, which includes a water pipe and a water spray assembly. The first end of the water pipe is connected to a water hose; a water curtain nozzle is provided on the water pipe, which is used to spray a water wall, the plane of which is perpendicular to the water pipe; the water spray assembly includes a water pipe and a rotating nozzle, the water pipe is installed at the second end of the water pipe, and the rotating nozzle is installed on the water pipe, which is used to spray water transported by the water pipe to cool the target area and / or extinguish the fire. By providing the water curtain nozzle on the water pipe, the present invention can achieve that when firefighters use the rotating nozzle on the fire hose to extinguish a fire in the target area, the water wall sprayed by the water curtain nozzle can isolate the firefighters from the fire source, thereby reducing the risk of burns to the firefighters during the firefighting process.

[0043] The following describes fire hoses according to some embodiments of the present invention with reference to the accompanying drawings.

[0044] See also Figure 1 and Figure 2 The present invention provides a fire hose nozzle comprising a water pipe 1 and a water spray assembly 2. The first end of the water pipe 1 is connected to a hose; a water curtain nozzle 3 is provided on the water pipe 1, which is configured to spray a water wall perpendicular to the water pipe 1. The water spray assembly 2 comprises a water spray pipe 201 and a rotating nozzle 202. The water spray pipe 201 is mounted on the second end of the water pipe 1, and the rotating nozzle 202 is mounted on the water spray pipe 201. The rotating nozzle 202 is configured to spray the water transported by the water pipe 1 to cool the target area and / or extinguish a fire.

[0045] The fire hose of this embodiment is mainly used for firefighting and extinguishing electric vehicles. The target area here can be the chassis of the electric vehicle. Therefore, when using the fire hose, the firefighter places the water pipe 1 under the chassis of the burning electric vehicle and adjusts the discharge position of the water pipe 1 to make the rotating nozzle 202 close to the bottom of the target area, so that the rotating nozzle 202 sprays the water transported by the water pipe 1 to complete the cooling and / or fire extinguishing of the target area.

[0046] Among them, when firefighters use the fire hose, they are generally located at the first end of the water pipe 1. In order to ensure that firefighters are not burned when using the fire hose, a water curtain nozzle 3 is arranged on the water pipe 1. Here, during the firefighting process, the water wall sprayed by the water curtain nozzle 3 can isolate the firefighters from the fire point, thereby reducing the risk of firefighters being burned during the firefighting process.

[0047] Here, when the firefighters are extinguishing the electric vehicle to be extinguished, the firefighters adjust the position of the water pipe 1 to place the water curtain nozzle 3 between the electric vehicle and the firefighters, so that the water wall sprayed by the water curtain spray is located between the firefighters and the electric vehicle.

[0048] It should be noted that the water curtain nozzle 3 on the water pipe 1 is normally open, and the rotating nozzle 202 on the water spray pipe 201 is also normally open. The water spray pipe 201 and the water pipe 1 are interconnected. When water in the hose flows into the water pipe 1, a portion of the water flowing into the water pipe 1 can be directly sprayed out of the water wall through the water curtain nozzle 3, while the other portion of the water flows to the rotating nozzle 202 and is sprayed out through the rotating nozzle 202. The water wall sprayed by the water curtain nozzle 3 can be a fan-shaped water wall.

[0049] The fire hose provided by the present invention, by arranging a water curtain nozzle 3 on the water supply pipe 1, can realize that when the firefighters extinguish the fire in the target area through the rotating nozzle 202 on the fire hose, the water wall sprayed by the water curtain nozzle 3 can isolate the firefighters from the fire point, thereby reducing the risk of burns to the firefighters during the fire fighting process.

[0050] In some possible embodiments, the water spray pipe 201 includes a first connecting pipe 2011 and a second connecting pipe 2012, the first connecting pipe 2011 and the water pipe 1 are coaxially arranged, and the first end of the first connecting pipe 2011 is connected to the water pipe 1; the axial direction of the second connecting pipe 2012 is perpendicular to the axial direction of the first connecting pipe 2011, and the second end of the first connecting pipe 2011 is connected to the second connecting pipe 2012; the rotating nozzle 202 is installed on the second connecting pipe 2012.

[0051] The first connecting pipe 2011 and the second connecting pipe 2012 are integrally formed.

[0052] Here, by coaxially arranging the first connecting pipe 2011 and the water pipe 1, and connecting the first end of the first connecting pipe 2011 to the second end of the water pipe 1, the water transported into the water pipe 1 by the water hose can flow quickly to the first connecting pipe 2011; in addition, the second connecting pipe 2012 is arranged at the second end of the first connecting pipe 2011, and the axial direction of the second connecting pipe 2012 is perpendicular to the axial direction of the first connecting pipe 2011. When the rotating nozzle 202 is installed on the second connecting pipe 2012, the installation area of ​​the rotating nozzle 202 can be increased. At the same time, it can also facilitate firefighters to determine the placement position of the rotating nozzle 202 through the position of the second connecting pipe 2012, so that the firefighters can quickly place the rotating nozzle 202 below the target area.

[0053] In addition, an extension pipe 7 can be set between the first connecting pipe 2011 and the water pipe 1. One end of the extension pipe 7 can be detachably connected to the first connecting pipe 2011, and the other end of the extension pipe 7 can be detachably connected to the water pipe 1 to extend the overall length of the fire hose.

[0054] In some possible embodiments, the bottom side of the water pipe 1, the bottom side of the first connecting pipe 2011, and the bottom side of the second connecting pipe 2012 are located on the same plane.

[0055] In order to ensure that the fire hose can be stably placed under the chassis of the electric vehicle when the firefighters use the fire hose, the bottom side of the water pipe 1, the bottom side of the first connecting pipe 2011 and the bottom side of the second connecting pipe 2012 are located on the same plane. When the fire hose is placed on the ground under the chassis of the vehicle, the water pipe 1, the first connecting pipe 2011 and the second connecting pipe 2012 can be stably placed under the chassis of the vehicle.

[0056] In some possible embodiments, the second end of the first connecting pipe 2011 is connected to the pipe wall near the middle position of the second connecting pipe 2012; a rotating nozzle 202 is installed near the end of the second connecting pipe 2012.

[0057] Here, the second end of the first connecting pipe 2011 is connected to the side pipe wall at the middle position of the second connecting pipe 2012, and the two rotating nozzles 202 are arranged one by one at the positions near the end of the second connecting pipe 2012, so that the water flow in the first connecting pipe 2011 is transported to the two ends of the second connecting pipe 2012 at the same pressure, and thus the two rotating nozzles 202 located at the end positions of the second connecting pipe 2012 can spray water with the same or similar pressure.

[0058] In some possible embodiments, the rotating nozzle 202 includes a mounting shaft seat 2021, a nozzle seat 2022 and a first nozzle 2023, and the mounting shaft seat 2021 is arranged on the second connecting pipe 2012; the nozzle seat 2022 is mounted on the mounting shaft seat 2021 and can be axially rotated on the mounting shaft seat 2021; at least three first nozzles 2023 are distributed on the side of the nozzle seat 2022, and at least three first nozzles 2023 are all connected to the inner cavity of the nozzle seat 2022; the spraying direction of at least three first nozzles 2023 is 35° to 60° horizontally upward.

[0059] Here, the mounting shaft seat 2021 is connected to the second connecting pipe 2012 ; after the nozzle seat 2022 is sleeved on the mounting shaft seat 2021 , the first nozzle 2023 is also connected to the inner cavity of the mounting shaft seat 2021 .

[0060] The water in the water hose passes through the water pipe 1, the first connecting pipe 2011, the second connecting pipe 2012 and the mounting shaft seat 2021 in sequence, and then flows out through the first nozzle 2023 in the form of high-pressure water flow. Since at least three first nozzles 2023 are provided on the nozzle seat 2022, and the spraying direction of the first nozzle 2023 is 35° to 60° horizontally upward, when at least three first nozzles 2023 spray out high-pressure water flow, the nozzle seat 2022 can rotate axially on the mounting shaft seat 2021 with the action of the high-pressure water flow, so as to realize the automatic rotation of the rotating nozzle 202.

[0061] In some possible implementations, see Figure 3 The second connecting pipe 2012 is provided with an auxiliary water spray assembly 4, which includes a third connecting pipe 401 and a second nozzle 402. The third connecting pipe 401 is connected to the second connecting pipe 2012; the second nozzle 402 is provided on the third connecting pipe 401, and the second nozzle 402 is used to spray an upward high-pressure water flow.

[0062] Since fires in electric vehicles are generally caused by battery fires due to overly high battery temperatures, an auxiliary water spray assembly 4 capable of spraying an upward high-pressure water flow is provided on the second connecting pipe 2012. When firefighters are extinguishing a burning electric vehicle, they can place the auxiliary water spray assembly 4 below the battery so that the second nozzle 402 of the auxiliary water spray assembly 4 can directly spray an upward high-pressure water flow toward the battery, thereby achieving rapid cooling or fire extinguishing of the battery, thereby accelerating the fire extinguishing speed of the electric vehicle.

[0063] In some possible embodiments, the third connecting pipe 401 is vertically disposed on the second connecting pipe 2012 , and the second nozzle 402 is located at an end of the third connecting pipe 401 away from the second connecting pipe 2012 .

[0064] The end of the third connecting pipe 401 may be connected to the pipe wall at a middle position close to the upper surface of the second connecting pipe 2012 .

[0065] Here, by vertically arranging the third connecting pipe 401 on the second connecting pipe 2012 and positioning the second nozzle 402 at the end of the third connecting pipe 401 away from the second connecting pipe 2012, the distance between the second nozzle 402 and the battery of the electric vehicle can be shortened so that the high-pressure water flow ejected from the second nozzle 402 can quickly cool the battery or extinguish a fire.

[0066] In some possible embodiments, the water spray pipe 201 and the water delivery pipe 1 are detachably connected through threaded engagement.

[0067] The water spray pipe 201 and the water delivery pipe 1 can both be made of stainless steel.

[0068] Here, by making the water spray pipe 201 and the water pipe 1 detachably connected by threaded fitting, the connection flexibility between the water spray pipe 201 and the water pipe 1 can be improved, thereby facilitating the carrying and assembly of the entire fire hose.

[0069] In some possible embodiments, a quick connector 5 is provided at the first end of the water pipe 1 , and the quick connector 5 is used for detachable connection with a water hose.

[0070] Here, a quick connector 5 is provided at the first end of the water spray pipe 201 so that the water hose can be quickly connected to the water pipe 1 through connection with the quick connector 5, so as to facilitate the firefighters to connect and remove the water hose from the fire hose.

[0071] In some possible embodiments, a water gun switch 6 is provided on the water pipe 1 , and the water gun switch 6 is used to control the connection between the water hose and the water pipe 1 .

[0072] In this embodiment, by providing a water gun switch 6 on the water pipe 1 , it is convenient for firefighters to control whether the water in the hose flows to the water pipe 1 through the water gun switch 6 .

[0073] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0074] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0075] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0076] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0077] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fire hose, characterized in that: include: A water pipe, a first end of which is connected to a water hose; a water curtain nozzle is provided on the water pipe, the water curtain nozzle is used to spray a water wall, and the plane where the water wall is located is perpendicular to the water pipe; The water spray assembly includes a water spray pipe and a rotating nozzle. The water spray pipe is installed at the second end of the water supply pipe, and the rotating nozzle is installed on the water spray pipe. The rotating nozzle is used to spray the water transported by the water supply pipe to cool the target area and / or extinguish the fire.

2. The fire-fighting water gun according to claim 1, characterized in that: The water spray pipe comprises: a first connecting pipe, coaxially arranged with the water pipe, and a first end of the first connecting pipe being connected to the water pipe; The second connecting pipe has an axial direction perpendicular to the axial direction of the first connecting pipe, and the second end of the first connecting pipe is connected to the second connecting pipe; the rotating spray head is installed on the second connecting pipe.

3. The fire-fighting water gun according to claim 2, characterized in that: The bottom side of the water delivery pipe, the bottom side of the first connecting pipe and the bottom side of the second connecting pipe are located on the same plane.

4. The fire-fighting water gun according to claim 2, characterized in that: The second end of the first connecting pipe is connected to the pipe wall near the middle position of the second connecting pipe; and a rotating spray head is installed at a position near the end of the second connecting pipe.

5. The fire-fighting water gun according to claim 4, characterized in that: The rotary nozzle comprises: An installation shaft seat is provided on the second connecting pipe; The nozzle seat is sleeved on the mounting shaft seat and can rotate axially on the mounting shaft seat; The first nozzles, at least three of which are distributed on the side of the nozzle holder, and at least three of which are connected to the inner cavity of the nozzle holder; the spraying directions of at least three of the first nozzles are all 35° to 60° upward from the horizontal.

6. The fire-fighting water gun according to claim 4, characterized in that: The second connecting pipe is provided with an auxiliary water spray assembly, and the auxiliary water spray assembly includes: a third connecting pipe, connected to the second connecting pipe; The second nozzle is provided on the third connecting pipe, and is used for spraying an upward high-pressure water flow.

7. The fire-fighting water gun according to claim 6, characterized in that: The third connecting pipe is vertically arranged on the second connecting pipe, and the second nozzle is located at an end of the third connecting pipe away from the second connecting pipe.

8. The fire-fighting water gun according to claim 1, characterized in that: The water spray pipe and the water delivery pipe are detachably connected through threaded engagement.

9. The fire-fighting water gun according to claim 1, characterized in that: The first end of the water pipe is provided with a quick connector, and the quick connector is used for detachable connection with the water hose.

10. The fire-fighting water gun according to claim 1, characterized in that: The water pipe is provided with a water gun switch, and the water gun switch is used to control the connection and disconnection between the water hose and the water pipe.

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