Multi-cannon cooperative fire extinguishing device and fire fighting truck

Abstract

The utility model relates to fire fighting equipment technical field especially, more gun cooperation fire extinguishing device and fire engine, the utility model embodiment provides more gun cooperation fire extinguishing device including arm support, liquid supply pipeline, first fire monitor and second fire monitor, and liquid supply pipeline sets up on arm support, first fire monitor sets up in the free end of arm support, and with liquid supply pipeline intercommunication, second fire monitor sets up in the free end of arm support, and is located one side of first fire monitor, and second fire monitor with liquid supply pipeline intercommunication, the utility model embodiment provides more gun cooperation fire extinguishing device can cope with main fire point and potential spread area simultaneously, has improved the control ability of fire extinguishing system to fire ground obviously, improves fire extinguishing operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a multi-cannon coordinated fire extinguishing device and a fire truck. Background Technology

[0002] With rapid social development and urbanization, fire situations are becoming increasingly complex. Currently, fire trucks typically use a single high-flow-rate fire monitor for firefighting operations. This single-monitor design presents a significant technical problem: due to having only one spray point, when facing multiple fire points, the monitor's adjustment range cannot fully cover the area. This necessitates adjusting the boom posture to reposition the monitor, a complex process that reduces firefighting efficiency and makes it difficult to effectively control the spread of fire.

[0003] Specifically, when using a single fire monitor to extinguish a fire, although it can powerfully extinguish the main fire point, it often results in a situation where "one fire is extinguished while others are not" due to the lack of control over the surrounding areas. Especially in fires that are large and easy to spread, a single spray point cannot simultaneously extinguish the main fire point and control the fire in the surrounding areas, leading to low fire extinguishing efficiency and even causing the fire to expand further. Utility Model Content

[0004] This utility model provides a multi-cannon coordinated fire extinguishing device and fire truck. The multi-cannon coordinated fire extinguishing device can simultaneously deal with the main fire point and potential spread areas, significantly improving the fire extinguishing system's control over the fire scene and increasing the efficiency of fire extinguishing operations.

[0005] In a first aspect, this utility model provides a multi-cannon coordinated fire extinguishing device, comprising: a boom; a liquid supply pipeline installed on the boom; a first fire monitor installed at the free end of the boom and connected to the liquid supply pipeline; and a second fire monitor installed at the free end of the boom and located to one side of the first fire monitor, the second fire monitor being connected to the liquid supply pipeline.

[0006] In one possible implementation, multiple second fire monitors are provided, with the multiple second fire monitors arranged around the first fire monitor.

[0007] In one possible implementation, the first fire monitor includes: a first nozzle for spraying extinguishing media; a first adjusting mechanism mounted on a boom, the movable end of the first adjusting mechanism being connected to the first nozzle for adjusting the spray angle of the first nozzle; and / or, the second fire monitor includes: a second nozzle for spraying extinguishing media; a second adjusting mechanism mounted on a boom, the movable end of the second adjusting mechanism being connected to the second nozzle for adjusting the spray angle of the second nozzle.

[0008] In one possible implementation, the liquid supply pipeline includes: a main pipeline connected to a first fire monitor; and a branch pipeline, one end of which is connected to the main pipeline and the other end of which is connected to a second fire monitor; wherein the pressure of the first fire monitor is greater than the pressure of the second fire monitor, and the flow rate of the first fire monitor is greater than the flow rate of the second fire monitor.

[0009] In one possible implementation, the branch line includes: an infusion line, a pressure reducing valve installed on the infusion line for regulating the pressure of the infusion line, and an on / off valve installed on the infusion line for controlling the on / off state of the infusion line.

[0010] In one possible implementation, the system further includes: a first sensor mounted on a first fire monitor; a second sensor mounted on a second fire monitor; a signal processing unit electrically connected to the first and second sensors, used to generate a control signal based on the fire source information detected by the first and second sensors; and a controller electrically connected to the signal processing unit, a pressure reducing valve, a switching valve, a first regulating mechanism, and a second regulating mechanism, used to control the pressure reducing valve, the switching valve, the first regulating mechanism, and the second regulating mechanism based on the control signal from the signal processing unit.

[0011] In one possible implementation, a fixing frame is provided at the free end of the boom, which is used to fix the second fire monitor or branch pipeline.

[0012] In one possible implementation, the boom includes at least one of a lifting boom, a folding boom, and a telescopic boom.

[0013] In one possible implementation, a turntable is also included, on which the boom is mounted, and the turntable is used to drive the boom to rotate along the horizontal plane.

[0014] Secondly, this utility model embodiment also provides a fire truck, including a vehicle body; a container disposed on the vehicle body, the container containing a fire extinguishing medium; and the aforementioned multi-cannon coordinated fire extinguishing device, the boom of which is disposed on the vehicle body, and the liquid supply pipeline of which is connected to the container.

[0015] This utility model provides a multi-cannon coordinated fire extinguishing device that simultaneously supplies extinguishing medium to both the first and second fire monitors via a liquid supply pipeline. The first fire monitor is mounted on the free end of the boom and can be aimed at the main fire point. Because its position is fixed at the boom end, the spray is more stable and can continuously extinguish the main fire point. The second fire monitor is mounted to one side of the first fire monitor, forming a cooperative relationship. When the first fire monitor is focused on the main fire point, the second fire monitor can simultaneously spray the surrounding area, overcoming the problem of "missing out on other areas" in existing technologies. The coordinated operation of the first and second fire monitors can simultaneously address both the main fire point and potential spread areas, significantly improving the fire extinguishing system's control over the fire scene and increasing fire extinguishing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a multi-cannon coordinated fire extinguishing device provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of a multi-cannon coordinated fire extinguishing device provided by this utility model during operation.

[0019] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure from another angle.

[0020] Figure 4 This is a control block diagram provided by this utility model.

[0021] Figure 5 This is a schematic diagram of the planar structure of a fire truck provided by this utility model.

[0022] Figure 6 This is a top view structural diagram of a fire truck provided by this utility model.

[0023] Figure 7 This is a structural diagram of a fire truck in operation provided by this utility model.

[0024] Figure label:

[0025] 1. Boom; 11. Fixture;

[0026] 2. Supply line; 21. Main line; 22. Branch line; 221. Infusion line; 222. Pressure reducing valve; 223. Switch valve;

[0027] 3. First fire monitor; 31. First monitor head; 32. First adjusting mechanism;

[0028] 4. Second fire monitor; 41. Second monitor head; 42. Second adjusting mechanism;

[0029] 5. Turntable; 6. Car body; 7. First sensor; 8. Second sensor; 9. Signal processing unit; 10. Controller. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] The following is combined Figure 1-4 This utility model provides a multi-cannon coordinated fire extinguishing device, comprising: a boom 1; a liquid supply pipeline 2, mounted on the boom 1; a first fire monitor 3, mounted at the free end of the boom 1 and connected to the liquid supply pipeline 2; and a second fire monitor 4, mounted at the free end of the boom 1 and located to one side of the first fire monitor 3, and connected to the liquid supply pipeline 2. Specifically, the liquid supply pipeline 2 is housed within the boom 1 to prevent it from being exposed.

[0032] In this invention, a liquid supply pipeline 2 simultaneously supplies extinguishing medium to the first fire monitor 3 and the second fire monitor 4. The first fire monitor 3 is located at the free end of the boom 1 and can be aimed at the main fire point. Because its position is fixed at the end of the boom 1, the spray is more stable and can continuously extinguish the main fire point. The second fire monitor 4 is located to one side of the first fire monitor 3 and works in conjunction with it. When the first fire monitor 3 is focused on the main fire point, the second fire monitor 4 can simultaneously spray the surrounding area, overcoming the problem of "extinguishing one but not another" in the prior art. The coordinated operation of the first fire monitor 3 and the second fire monitor 4 can simultaneously deal with the main fire point and the potential spread area, significantly improving the fire extinguishing system's control over the fire scene and increasing the efficiency of fire extinguishing operations.

[0033] In related technologies, current fire monitors use a single monitor to extinguish the main fire point. However, there may be peripheral fire points around the main fire point. If the peripheral fire points cannot be controlled, it is difficult to control the fire in the area.

[0034] In the embodiments provided by this utility model, a multi-point coordinated fire extinguishing operation is achieved by setting the liquid supply pipeline 2 on the boom 1, the first fire monitor 3 at the free end of the boom 1, and the second fire monitor 4 on one side of the first fire monitor 3, all of which are connected to the liquid supply pipeline 2. This structural arrangement allows the first fire monitor 3 and the second fire monitor 4 to receive fire extinguishing medium simultaneously, forming a multi-point spray capability at high altitude, and achieving a larger coverage of the fire scene through spraying from different positions. Compared with the design of a single fire monitor, this coordinated arrangement significantly improves the fire scene coverage capability and fire extinguishing efficiency of the fire extinguishing device. In practical applications, the first fire monitor 3 can be aimed at the main fire point for fire extinguishing, while the second fire monitor 4 sprays the side areas, effectively preventing the spread of fire.

[0035] In some embodiments, multiple second fire monitors 4 are provided, and the multiple second fire monitors 4 are arranged around the first fire monitor 3.

[0036] In this invention, multiple second fire monitors 4 are arranged around the first fire monitor 3, forming a comprehensive fire extinguishing system. When a fire occurs, the multiple second fire monitors 4 can simultaneously spray the area surrounding the first fire monitor 3, forming a complete fire protection circle in conjunction with the first fire monitor 3. This avoids the possibility of fire spreading due to a single-direction arrangement and improves the reliability of fire extinguishing.

[0037] Specifically, there are two second fire monitors 4, which are symmetrically arranged on both sides of the first fire monitor 3. The first fire monitor 3 controls the main fire point, while the two second fire monitors 4 control the peripheral fire points on both sides respectively.

[0038] In some embodiments, the liquid supply pipeline 2 includes: a main pipeline 21, which is connected to the first fire monitor 3; and a branch pipeline 22, one end of which is connected to the main pipeline 21 and the other end of which is connected to the second fire monitor 4; wherein the pressure of the first fire monitor 3 is greater than the pressure of the second fire monitor 4, and the flow rate of the first fire monitor 3 is greater than the flow rate of the second fire monitor 4.

[0039] This utility model defines the specific structure of the liquid supply pipeline 2, including a main pipeline 21 connected to the first fire monitor 3, and a branch pipeline 22 connected at one end to the main pipeline 21 and at the other end to the second fire monitor 4. This pipeline arrangement ensures that the pressure and flow rate of the first fire monitor 3 exceed the fire extinguishing requirements of the second fire monitor 4. This pipeline arrangement creates a fire extinguishing system with a clear primary and secondary fire suppression mechanism. When the high-pressure, high-flow-rate first fire monitor 3 sprays, the water flow carries enormous kinetic energy and acts directly on the center of the fire source, effectively disrupting the stable combustion state in the central area of ​​the fire. Simultaneously, the second fire monitor 4 sprays at a lower pressure and flow rate to the surrounding area, forming a suitable water curtain protection without affecting the main jet, effectively preventing the spread of fire. This gradient spraying method ensures the fire extinguishing effect on the main fire point while making rational use of the extinguishing medium and avoiding resource waste.

[0040] Specifically, the first fire monitor 3 serves as the main fire monitor, used to extinguish the main fire point; the second fire monitor 4 serves as the secondary fire monitor, used to control the fire at the fire points around the main fire point.

[0041] In some embodiments, the first fire monitor 3 includes: a first nozzle 31 for spraying extinguishing media; a first adjustment mechanism 32, which is disposed on the boom 1, and the movable end of the first adjustment mechanism 32 is connected to the first nozzle 31 for adjusting the spray angle of the first nozzle 31; and / or, the second fire monitor 4 includes: a second nozzle 41 for spraying extinguishing media; a second adjustment mechanism 42, which is disposed on the boom 1, and the movable end of the second adjustment mechanism 42 is connected to the second nozzle 41 for adjusting the spray angle of the second nozzle 41.

[0042] This embodiment of the utility model specifies that the first fire monitor 3 includes a first nozzle 31 and a first adjusting mechanism 32, and the second fire monitor 4 includes a second nozzle 41 and a second adjusting mechanism 42. The first nozzle 31 is used to spray extinguishing media, and the first adjusting mechanism 32 is connected to the first nozzle 31 through its movable end to adjust the spray angle of the first nozzle 31. The second nozzle 41 is also used to spray extinguishing media, and the second adjusting mechanism 42 is connected to the second nozzle 41 through its movable end to adjust the spray angle of the second nozzle 41. This design allows the first adjusting mechanism 32 and the second adjusting mechanism 42 to achieve precise angle control of their respective nozzles. When the first nozzle 31 is aimed at the center of the fire for the main attack, the water flow can be accurately hit the most intensely burning area by adjusting the movable end of the first adjusting mechanism 32; at the same time, the second nozzle 41 is adjusted to a suitable angle through the movable end of the second adjusting mechanism 42 to form an outer protection, and the two work together to form a three-dimensional fire extinguishing effect. This independently adjustable structure allows the extinguishing media to play its role to the maximum extent and avoids the fire extinguishing dead zones that may be caused by fixed-angle spraying.

[0043] In some embodiments, the branch line 22 includes: an infusion line 221, a pressure reducing valve 222 disposed on the infusion line 221 for adjusting the pressure of the infusion line 221, and a switching valve 223 disposed on the infusion line 221 for controlling the on / off state of the infusion line 221.

[0044] In this invention, a pressure reducing valve 222 and a switching valve 223 are installed on the infusion pipeline 221. The pressure reducing valve 222 is used to regulate the pressure of the infusion pipeline 221, and the switching valve 223 is used to control the on / off state of the infusion pipeline 221. This design enables the first fire monitor 3 and the second fire monitor 4 to form a precisely controllable coordinated fire extinguishing system. When the extinguishing medium is delivered through the main pipeline 21, the pressure reducing valve 222 can adjust the working pressure of the second fire monitor 4 according to the fire situation, so that the water flow is sprayed at a suitable pressure; at the same time, the switching valve 223 can realize the rapid start and stop control of the second fire monitor 4 to avoid unnecessary spraying. This precise and controllable liquid supply method enables the fire extinguishing system to be differentiated according to different fire situations, improving the utilization efficiency of the extinguishing medium while ensuring the fire extinguishing effect.

[0045] Specifically, there are two second fire monitors 4 and two corresponding branch pipes 22. The two branch pipes 22 provide extinguishing media to the two second fire monitors 4 respectively. The number of second fire monitors 4 that can be opened can be controlled by the switch valve 223, and the spray pressure of each second fire monitor 4 can be controlled by the pressure reducing valve 222. Thus, an appropriate extinguishing plan can be selected according to the specific situation of the fire scene to ensure extinguishing efficiency.

[0046] Among them, the switching valve 223 is a pneumatic butterfly valve.

[0047] In some embodiments, the system further includes: a first sensor 7 disposed on the first fire monitor 3; a second sensor 8 disposed on the second fire monitor 4; a signal processing unit 9 electrically connected to the first sensor 7 and the second sensor 8, configured to generate a control signal based on the fire source information monitored by the first sensor 7 and the second sensor 8; and a controller 10 electrically connected to the signal processing unit 9, the pressure reducing valve 222, the switching valve 223, the first adjusting mechanism 32, and the second adjusting mechanism 42, configured to control the pressure reducing valve 222, the switching valve 223, the first adjusting mechanism 32, and the second adjusting mechanism 42 based on the control signal from the signal processing unit 9.

[0048] In this utility model, a first sensor 7 is installed on the first fire monitor 3, and a second sensor 8 is installed on the second fire monitor 4. A complete automatic control system is formed through the signal processing unit 9 and the controller 10.

[0049] Specifically, when changes occur at the fire scene, the first sensor 7 and the second sensor 8 can capture the location and temperature information of the fire source in real time. The signal processing unit 9 converts this information into control commands, and the controller 10 then adjusts the working state of the pressure reducing valve 222, the on / off valve 223, the first regulating mechanism 32, and the second regulating mechanism 42, thereby controlling the spray angle and spray pressure of the first fire monitor 3, as well as the number of second fire monitors 4 that are activated, their spray angle, and their spray pressure. This closed-loop control method enables the system to respond quickly to changes in the fire situation and automatically adjust the spray parameters, greatly improving fire extinguishing efficiency and accuracy compared to manual operation.

[0050] Among them, the first sensor 7 and the second sensor 8 are infrared sensors used to detect fire source information and monitor the ignition point by temperature.

[0051] In some embodiments, a fixing frame 11 is provided at the free end of the boom 1, and the fixing frame 11 is used to fix the second fire monitor 4 or the branch pipe 22.

[0052] In this invention, a fixing frame 11 is installed at the free end of the boom 1 to fix the second fire monitor 4, providing a stable mechanical foundation for coordinated firefighting. Under high-pressure jet conditions, the reaction force of the water flow will generate a significant impact on the fire monitor. The fixing frame 11, with its rigid structure, can effectively resist these forces, ensuring the stability of the second fire monitor 4's spray position. Simultaneously, the relative positions of the first fire monitor 3 and the second fire monitor 4 remain stable, ensuring that they are always within the preset spray angle range, guaranteeing a coordinated firefighting effect. This mechanical stability is particularly important for precise firefighting, especially when prolonged continuous spraying is required.

[0053] Optionally, the mounting bracket 11 can also fix the branch pipe 22, and the second fire monitor 4 is connected to the end of the branch pipe 22, and the second fire monitor 4 is supported by the rigid structure of the branch pipe 22.

[0054] In some embodiments, the boom 1 includes at least one of a lifting boom 1, a folding boom 1, and a telescopic boom 1.

[0055] In this invention, the boom 1 is designed as at least one of a lifting boom 1, a folding boom 1, and a telescopic boom 1. The form of the boom 1 is not overly limited, as long as the first fire monitor 3 and the second fire monitor 4 are located at the same movable end and can achieve the purpose of coordinated firefighting. The lifting boom 1 can adjust its height vertically, making it suitable for handling fires on different floors; the folding boom 1 can be flexibly deployed in confined spaces, capable of handling complex terrain environments; the telescopic boom 1 can adjust its horizontal working distance, allowing the fire monitor to approach or move away from the fire source. These three types of boom 1 each have their own characteristics, and the most suitable working method can be selected according to the actual fire situation. For example, in a high-rise building fire, the lifting boom 1 can quickly adjust the fire monitor to the fire floor; in a fire in a narrow street, the folding boom 1 can bypass obstacles to reach the optimal firefighting position; and in a hazardous materials fire where a safe distance needs to be maintained, the telescopic boom 1 allows the fire monitor to spray from a safe distance.

[0056] In some embodiments, a turntable 5 is also included, on which the boom 1 is disposed, and the turntable 5 is used to drive the boom 1 to rotate along a horizontal plane.

[0057] This embodiment of the invention adds a turntable 5, on which the boom 1 is mounted. The turntable 5 drives the boom 1 to rotate horizontally, effectively expanding the working range of the fire extinguishing system. Through the rotation function of the turntable 5, the entire boom 1 system can achieve 360-degree coverage, allowing the first fire monitor 3 and the second fire monitor 4 to quickly target fire points in any direction. This all-around mobility is particularly suitable for handling mobile fire sources or multi-point fires. For example, when a change in wind direction causes a change in the direction of fire spread, the turntable 5 can quickly move the entire fire extinguishing system to the new fire location without needing to readjust the fire truck's parking position, greatly shortening the fire extinguishing response time. Simultaneously, this rotation function also facilitates the fire monitors to quickly return to their original position or turn to a new working position during breaks in operation, improving the continuity and efficiency of the entire fire extinguishing process.

[0058] The utility model provides a multi-cannon coordinated fire extinguishing device that simultaneously supplies extinguishing medium to the first fire monitor 3 and the second fire monitor 4 via a liquid supply pipeline 2. The first fire monitor 3 is located at the free end of the boom 1 and can spray at the main fire point. Because its position is fixed at the end of the boom 1, the spray is more stable and can continuously extinguish the main fire point. The second fire monitor 4 is located to one side of the first fire monitor 3 and works in coordination with it. When the first fire monitor 3 is focused on the main fire point, the second fire monitor 4 can spray the surrounding area at the same time, overcoming the problem of "extinguishing one but not another" in the prior art. The coordinated operation mode of the first fire monitor 3 and the second fire monitor 4 can simultaneously deal with the main fire point and the potential spread area, significantly improving the fire extinguishing system's control over the fire scene and increasing the efficiency of fire extinguishing operations.

[0059] like Figure 5-7 As shown, this utility model embodiment also provides a fire truck, including a vehicle body 6; a container disposed on the vehicle body 6, the container containing fire extinguishing medium; and the aforementioned multi-cannon coordinated fire extinguishing device, wherein the boom 1 of the multi-cannon coordinated fire extinguishing device is disposed on the vehicle body 6, and the liquid supply pipeline 2 of the multi-cannon coordinated fire extinguishing device is connected to the container.

[0060] This embodiment integrates a multi-cannon coordinated fire extinguishing device with a fire truck. By installing a container on the vehicle body 6 to store the extinguishing medium, mounting the boom 1 on the vehicle body 6, and connecting the liquid supply pipeline 2 to the container, a complete mobile fire extinguishing system is formed. The combination of the fire truck's mobility and the high efficiency of the multi-cannon coordinated fire extinguishing device gives the entire system rapid mobility and powerful fire extinguishing capabilities. The onboard container not only provides ample reserves of extinguishing medium for the fire monitors but also ensures stable liquid supply through a scientifically designed pipeline layout. Upon receiving a fire alarm, this system can quickly reach the scene, achieving rapid deployment and use of the fire extinguishing device with minimal deployment time. This integrated design is particularly suitable for urban firefighting needs, enabling rapid mobility in complex road environments and allowing for efficient coordinated fire extinguishing operations upon arrival. For example, in the event of a fire in a densely populated urban high-rise building area, the system can quickly select the optimal parking location, utilizing the multi-degree-of-freedom of the boom 1 and the omnidirectional characteristics of the turntable 5 to rapidly deploy coordinated fire extinguishing operations, maximizing control over the spread of the fire.

[0061] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-cannon coordinated fire extinguishing device, characterized in that, include: boom (1); Liquid supply line (2) is installed on the boom (1); The first fire monitor (3) is installed at the free end of the boom (1) and is connected to the liquid supply pipeline (2); The second fire monitor (4) is located at the free end of the boom (1) and on one side of the first fire monitor (3). The second fire monitor (4) is connected to the liquid supply pipeline (2).

2. The multi-cannon coordinated fire extinguishing device according to claim 1, characterized in that, Multiple second fire monitors (4) are provided, and multiple second fire monitors (4) are arranged around the first fire monitor (3).

3. The multi-cannon coordinated fire extinguishing device according to claim 1, characterized in that, The first fire monitor (3) includes: The first nozzle (31) is used to spray extinguishing media; The first adjustment mechanism (32) is mounted on the boom (1). The movable end of the first adjustment mechanism (32) is connected to the first gun head (31) and is used to adjust the spray angle of the first gun head (31). And / or, the second fire monitor (4) includes: The second gun head (41) is used to spray extinguishing media; The second adjustment mechanism (42) is mounted on the boom (1). The movable end of the second adjustment mechanism (42) is connected to the second gun head (41) and is used to adjust the spray angle of the second gun head (41).

4. The multi-cannon coordinated fire extinguishing device according to claim 3, characterized in that, The liquid supply pipeline (2) includes: Main pipeline (21), which is connected to the first fire monitor (3); Branch pipe (22), one end of which is connected to the main pipe (21) and the other end is connected to the second fire monitor (4); Among them, the pressure of the first fire monitor (3) is greater than the pressure of the second fire monitor (4), and the flow rate of the first fire monitor (3) is greater than the flow rate of the second fire monitor (4).

5. The multi-cannon coordinated fire extinguishing device according to claim 4, characterized in that, The branch pipe (22) includes: Infusion tubing (221). A pressure reducing valve (222) is installed on the infusion line (221) to regulate the pressure of the infusion line (221); A switching valve (223) is installed on the infusion line (221) to control the opening and closing of the infusion line (221).

6. The multi-cannon coordinated fire extinguishing device according to claim 5, characterized in that, Also includes: The first sensor (7) is mounted on the first fire monitor (3); The second sensor (8) is installed on the second fire monitor (4); The signal processing unit (9) is electrically connected to the first sensor (7) and the second sensor (8) and is used to generate a control signal based on the fire source information monitored by the first sensor (7) and the second sensor (8); The controller (10) is electrically connected to the signal processing unit (9), the pressure reducing valve (222), the switching valve (223), the first regulating mechanism (32), and the second regulating mechanism (42), and is used to control the pressure reducing valve (222), the switching valve (223), the first regulating mechanism (32), and the second regulating mechanism (42) according to the control signal of the signal processing unit (9).

7. The multi-cannon coordinated fire extinguishing device according to claim 4, characterized in that, The free end of the boom (1) is provided with a fixing frame (11), which is used to fix the second fire monitor (4) or the branch pipe (22).

8. The multi-cannon coordinated fire extinguishing device according to any one of claims 1-7, characterized in that, The boom (1) includes at least one of a lifting boom, a folding boom, and a telescopic boom.

9. The multi-gun coordinated fire extinguishing device according to any one of claims 1-7, characterized in that, It also includes a turntable (5), on which the boom (1) is mounted, and the turntable (5) is used to drive the boom (1) to rotate along the horizontal plane.

10. A fire truck, characterized in that, include: Vehicle body (6); A container is provided on the vehicle body (6), and the container is filled with fire extinguishing medium; The multi-cannon coordinated fire extinguishing device as described in any one of claims 1-9, wherein the boom (1) of the multi-cannon coordinated fire extinguishing device is mounted on the vehicle body (6), and the liquid supply pipeline (2) of the multi-cannon coordinated fire extinguishing device is connected to the container.

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