A method of extinguishing a fire at a distance

Abstract

The present application relates to a fire extinguishing method for long-distance fire fighting, and belongs to the technical field of fire fighting, which solves the problem that long-distance fire fighting is difficult to achieve in the prior art and the flight distance of fire extinguishing bombs is difficult to control when the fire extinguishing bombs are launched. The present application comprises the following steps: step S1: adjusting the balance legs of a fire fighting vehicle to level and support the fire fighting vehicle; step S2: detecting a target position by a detection device of an electromagnetic launching system; step S3: adjusting the posture of a launching turret according to the position information detected by the detection device to position and aim at the target; after aiming, the electromagnetic launcher launches the fire extinguishing bomb; step S4: when the fire extinguishing bomb is launched to the target position, the fire extinguishing bomb is detonated to spray fire extinguishing agent. The present application realizes the detection and positioning of the target position, accurately launches the fire extinguishing bomb, and thus realizes long-distance fire fighting.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and in particular to a method for extinguishing fires over long distances. Background Technology

[0002] The global environment is currently in a precarious state, making the protection of forest resources crucial for improving the natural environment. Forests possess significant ecological and economic value. However, frequent global forest fires persist each year, and forest fire suppression remains a persistent and difficult problem. Forest fires cause severe damage to trees, the environment, and incalculable economic losses. Fire has become one of the most catastrophic problems affecting people worldwide, especially large-scale, highly destructive fires. Forest fires are complex, particularly cliff fires. Due to the treacherous terrain, personnel cannot quickly approach, or are even unable to approach at all, making it difficult to suppress the fire immediately. This allows the fire to spread easily, further complicating rescue efforts.

[0003] Traditional firefighting tools are difficult to use for precise fire suppression over long distances. To address this, a long-range electromagnetic fire truck is proposed. This fire truck can target fires that are inaccessible to personnel and extinguish forest fires from a distance.

[0004] When a forest fire occurs, professional firefighters drive fire extinguishing vehicles to the fire site. Under the unified command of the commander, the fire extinguishing vehicles are adjusted and loaded with ammunition, and then fire extinguishing shells are fired at the fire area. This allows for long-range firefighting while avoiding casualties. Furthermore, the fire extinguishing equipment is no longer required to supply water.

[0005] Forest fires cause severe damage to trees, the environment, and incalculable economic losses. Fire has become one of the most catastrophic problems plaguing people worldwide, especially large-scale, highly destructive fires. Forest fires are complex, particularly cliff fires, where the treacherous terrain makes it difficult, if not impossible, for personnel to approach quickly and effectively, hindering immediate suppression and allowing the fire to spread and escalate, greatly complicating rescue efforts.

[0006] Traditional firefighting tools are difficult to use for precise fire suppression over long distances. Therefore, long-range fire cannons can be used to extinguish forest fires that are inaccessible to personnel.

[0007] When a fire extinguishing vehicle fires fire extinguishing shells, the angle of the shells needs to be adjusted to control the firing distance. Therefore, a fire extinguishing shell position and attitude adjustment device is needed. Summary of the Invention

[0008] Based on the above analysis, the present invention aims to provide a fire extinguishing method for long-distance firefighting, in order to solve the problems that existing fire extinguishing tools are difficult to use for long-distance fire extinguishing and that the flight distance of fire extinguishing projectiles is difficult to control when they are launched.

[0009] The objective of this invention is mainly achieved through the following technical solutions:

[0010] A fire extinguishing method for long-distance firefighting includes the following steps:

[0011] Step S1: Adjust the outriggers of the fire truck to level and support it;

[0012] Step S2: Detect the target location using the detection device of the electromagnetic launch system;

[0013] Step S3: Adjust the attitude of the launching turret according to the position information detected by the detection device to locate and aim at the target; after aiming, the electromagnetic launcher launches the fire extinguishing projectile;

[0014] Step S4: When the fire extinguishing bomb is launched to the target location, the fire extinguishing bomb is detonated and the fire extinguishing agent is sprayed.

[0015] Furthermore, the balancing outriggers are fixedly or rotatably installed between the vehicle body and the fire engine.

[0016] Furthermore, when the outriggers are fixedly installed on the vehicle body of the fire truck: the outriggers are perpendicular to the vehicle body; the leveling electric cylinder drives the outriggers to extend and retract, supporting and leveling the vehicle body;

[0017] Furthermore, when the balancing outrigger is rotated and installed on the fire truck body: the linear motor drives the balancing outrigger to rotate relative to the vehicle body through the connecting rod, so that the balancing outrigger is adjusted to be perpendicular to the vehicle body; then the leveling electric cylinder drives the balancing outrigger to extend and retract, supporting the vehicle body.

[0018] Furthermore, in step S2, the detection and positioning process of the detection device on the target location is as follows:

[0019] Step S21: The launch turret adjusts the attitude of the cradle through the pitch and azimuth transmission mechanisms, thereby changing the azimuth and pitch angles of the detection device on the cradle; the cradle maintains the attitude change until the target appears in the field of view of the zoomable visible light camera of the detection device; the target position is detected.

[0020] Step S22: The detection device controls the magnification of the zoom visible light camera to adjust the position of the target on the display screen; the transmission turret adjusts its attitude according to the position information of the target detected by the detection device to keep the target always in the display screen; when the zoom visible light camera is adjusted to the maximum magnification, the transmission turret adjusts its attitude to center the target on the display screen.

[0021] Step S23: The detection device uses a laser rangefinder to detect the distance between the target location and the launch point, thus completing the target localization.

[0022] Furthermore, in step S3, the target aiming process is as follows:

[0023] Step S31: Based on the target position information measured by the detection device, calculate the elevation angle, azimuth angle and launch speed required for the electromagnetic launcher to launch the fire extinguishing projectile;

[0024] Step S32: Adjust the cradle to the required pitch and azimuth angles for launch using the pitch and azimuth transmission mechanisms of the launch turret;

[0025] Step S33: Launch fire extinguishing projectiles via an electromagnetic launcher.

[0026] Furthermore, in step S2, the attitude adjustment method of the launch turret is as follows:

[0027] Step Q1: Adjust the pitch movement of the launch turret through the pitch transmission mechanism; the pitch transmission mechanism controls the extension and retraction of the electric cylinder; thereby causing the rocker arm to deflect at the pitch angle relative to the turntable;

[0028] Step Q2: Adjust the azimuth movement of the launch turret through the azimuth transmission mechanism; specifically, the azimuth transmission mechanism outputs torque, which in turn drives the turntable of the launch turret to rotate relative to the base; when the turntable rotates, it drives the rocker arm and the electromagnetic transmitter and detection device installed on the rocker arm to move synchronously.

[0029] Step Q3: When the pitch and azimuth transmission mechanisms are in motion, the pitch and azimuth angles of the cradle are monitored in real time through the combination of pitch and azimuth angle measurements.

[0030] Furthermore, in step S3, the process of the electromagnetic launcher launching the fire extinguishing projectile is as follows:

[0031] Step S31: Load the fire extinguishing bomb into the electromagnetic launcher;

[0032] Step S32: After the drive coil is energized, it generates electromagnetic induction with the transmitting armature, driving the transmitting armature to move linearly relative to the drive coil;

[0033] Step S33: When the armature is linearly displaced, it drives the fire extinguishing projectile to move synchronously, providing the initial velocity for the fire extinguishing projectile to be launched from the tube.

[0034] Furthermore, a positioning cylinder is fixedly installed inside the drive coil; a positioning sensor is installed on the positioning cylinder; the positioning sensor monitors whether the fire extinguishing bomb is loaded in place; when the fire extinguishing bomb is loaded in place, the launching armature contacts the positioning sensor on the positioning cylinder.

[0035] Furthermore, the fire extinguishing process of the fire extinguishing bomb is as follows:

[0036] Step M1: After the fuse is detonated, the black powder in the powder box is ignited. The burning black powder generates high pressure, which pushes the piston to slide along the cartridge tube.

[0037] Step M2: The piston pressurizes the extinguishing agent in the cartridge, and the pressure of the extinguishing agent acts on the fairing, pushing the fairing to move outward, cutting off the connecting pin between the fairing and the cartridge body. After the fairing moves out of the cartridge, the spray hole is exposed.

[0038] Step M3: The piston pushes the extinguishing agent in the cartridge to move outward. Under the action of piston 3, the extinguishing agent continues to move and is sprayed out from the spray hole, thus realizing the spraying of the extinguishing agent.

[0039] The technical solution of this invention can achieve at least one of the following effects:

[0040] 1. This invention addresses forest fires, especially cliff fires, by developing a long-range electromagnetic fire extinguisher with high fire extinguishing distance, high fire extinguishing accuracy, and high fire extinguishing safety. It utilizes electromagnetic launch of fire extinguishing projectiles, and the projectiles do not explode in the center, resulting in high fire extinguishing safety.

[0041] 2. The electromagnetic launcher of the present invention mainly utilizes the energy storage capacitor to discharge the inductor coil assembly, generating a pulsed magnetic field, which induces eddy currents in the armature, and interacts with the current in the drive coil to generate electromagnetic force, accelerating the movement of the launching armature. Through continuous acceleration by multi-stage drive coils, the launching armature 66 and the fire extinguishing projectile 7 are launched out of the gun barrel at a high speed.

[0042] 3. The fire extinguishing method of the present invention maintains the stability of the vehicle body by leveling the vehicle body with an electric cylinder; obtains the accurate location of the fire source by photoelectric detection of the target location through a detection device; achieves long-distance launch of the fire extinguishing bullet by electromagnetic launch in conjunction with a high-intensity launch armature; and ensures the flight distance of the fire extinguishing bullet, thereby achieving long-distance and precise fire extinguishing.

[0043] 3. This invention enables independent forest firefighting operations by a single vehicle. It delivers extinguishing agents precisely and over long distances to the fire scene via fire-extinguishing bombs, achieving rapid and effective fire suppression. It also features convenient "one-button" retrieval. The fire-extinguishing bombs utilize electromagnetic coil launching technology, resulting in smokeless and flameless launches with no environmental pollution, high kinetic energy, and high launch efficiency. The extinguishing agent is released via spraying, and the release process produces no lethal fragments, improving the safety of firefighting operations.

[0044] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0045] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0046] Figure 1 This is the launching turret of the electromagnetic launching system of the present invention;

[0047] Figure 2 This is a side view of the electromagnetic launching system of the present invention;

[0048] Figure 3 A schematic diagram of the base structure of the launch turret;

[0049] Figure 4 The turntable for the launch turret;

[0050] Figure 5 For the pitch transmission mechanism of the launch turret;

[0051] Figure 6 For the orientation transmission mechanism of the launch turret;

[0052] Figure 7 Front view of the launch turret cradle;

[0053] Figure 8 for Figure 7 A cross-sectional view of the swing frame;

[0054] Figure 9 for Figure 7 Left view of the swing frame.

[0055] Figure 10 The electromagnetic transmitter of the electromagnetic launching system of the present invention;

[0056] Figure 11 This is the acceleration section of the electromagnetic transmitter;

[0057] Figure 12 A cross-sectional view of the acceleration section of the electromagnetic transmitter;

[0058] Figure 13 This is a schematic diagram of the electromagnetic transmitter's transmission principle.

[0059] Figure 14 It serves as the transmitting armature of the electromagnetic transmitter;

[0060] Figure 15 This is the recoil section of the electromagnetic transmitter;

[0061] Figure 16 This is a schematic diagram of the fire extinguishing projectile structure of the present invention;

[0062] Figure 17 for Figure 16 A magnified view of a section of the fire extinguishing bomb;

[0063] Figure 18 This is a schematic diagram of the structure of the fire engine of the present invention;

[0064] Figure 19 A schematic diagram showing the folded-up state of the rotatable outriggers;

[0065] Figure 20 A schematic diagram showing the support state of the rotatable outriggers;

[0066] Figure 21 This is a schematic diagram of the leveling principle of the fire engine of the present invention;

[0067] Figure 22 This is a flowchart of the electromagnetic launch system.

[0068] Figure label:

[0069] 1-Base; 2-Turntable; 3-Pitch transmission mechanism; 4-Azimuth transmission mechanism; 5-Cyclist; 6-Electromagnetic launcher; 7-Fire extinguishing bomb; 8-Vehicle body; 9-Balance outrigger; 901-Linear motor; 902-Connecting rod;

[0070] 11-Base; 12-Buffer bracket; 13-Buffer; 14-Stiffener;

[0071] 21-Slewing bearing; 22-Support platform; 23-Outrigger; 24-Baffle; 25-Azimuth angle measuring assembly; 26-Pitch angle measuring assembly; 27-Cable mounting plate;

[0072] 31-Electric cylinder; 32-Upper support lug; 33-Lower support lug; 34-Positioning pin;

[0073] 41-Servo motor; 42-Reducer; 43-Pin gear; 44-Baffle;

[0074] 51-Rocker arm; 52-Upper sleeve; 53-Lower sleeve; 54-Front sleeve; 55-Upper support plate; 56-Lower support plate; 57-Guide rail; 58-Detection device; 59-Anti-recoil device; 521-Fixing hole;

[0075] 61-Guidance section; 62-Acceleration section; 63-Recoil section; 64-Positioning cylinder; 65-Landing sensor; 66-Transmitting armature;

[0076] 611-Front support;

[0077] 621 - Front insulating retaining ring; 622 - First fastening steel frame; 623 - Rear insulating retaining ring; 624 - Second fastening steel frame; 625 - Drive coil; 626 - Bolt assembly; 627 - Connecting joint; 628 - Insulating pad;

[0078] 631 - Rear support; 632 - Rear seat connecting plate;

[0079] 661 - Armature outer sleeve; 662 - Armature bushing; 663 - Armature retaining ring;

[0080] 71-Fuse; 72-Package; 73-Piston; 74-Cartridge; 75-Fairing; 76-Connecting pin; 77-Stabilizing section; 78-Tail fin;

[0081] 751 - Limiting ring; 752 - Spray hole. Detailed Implementation

[0082] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0083] Example 1

[0084] A specific embodiment of the present invention discloses a fire extinguishing method for long-distance firefighting, comprising the following steps:

[0085] Step S1: Adjust the outriggers 9 of the fire truck to level and support it;

[0086] Step S2: Detect the target position using the detection device 58 of the electromagnetic emission system;

[0087] Step S3: Adjust the attitude of the launching turret according to the position information detected by the detection device 58, and locate and aim at the target; after aiming, the electromagnetic launcher 6 launches the fire extinguishing projectile 7;

[0088] Step S4: When the fire extinguishing bomb 7 is launched to the target position, the fire extinguishing bomb 7 is detonated and the fire extinguishing agent is sprayed.

[0089] In one specific embodiment of the present invention, the balancing support leg 9 is fixedly installed or rotatably installed between the vehicle body 8 of the fire engine.

[0090] like Figure 18 As shown, when the balance support leg 9 is fixedly installed with the vehicle body 8 of the fire truck: the balance support leg 9 is perpendicular to the vehicle body 8; the leveling electric cylinder drives the balance support leg 9 to extend and retract, supporting and leveling the vehicle body 8.

[0091] Or, such as Figure 19 , Figure 20As shown, when the balance support leg 9 is rotated and installed with the vehicle body 8 of the fire engine: the linear motor 901 drives the balance support leg 9 to rotate relative to the vehicle body 8 through the connecting rod 902, so that the balance support leg 9 is adjusted to be perpendicular to the vehicle body 8; then the leveling electric cylinder drives the balance support leg 9 to extend and retract, supporting the vehicle body 8.

[0092] In one specific embodiment of the present invention, such as Figure 22 As shown, in step S2, the detection and positioning process of the detection device 58 on the target location is as follows:

[0093] Step S21: The launch turret adjusts the attitude of the cradle 5 through the pitch transmission mechanism 3 and the azimuth transmission mechanism 4, thereby changing the azimuth and pitch angles of the detection device 58 on the cradle 5; the cradle 5 maintains the attitude change until the target appears in the field of view of the zoom visible light camera of the detection device 58; the target position is detected.

[0094] Step S22: The detection device 58 controls the magnification of the zoom visible light camera to adjust the position of the target on the display screen; the transmission turret adjusts its attitude according to the position information of the target detected by the detection device 58 to keep the target always in the display screen; when the zoom visible light camera is adjusted to the maximum magnification, the transmission turret adjusts its attitude to center the target on the display screen.

[0095] Step S23: The detection device 58 uses a laser rangefinder to detect the distance between the target position and the launch point, thus completing the target positioning.

[0096] In one specific embodiment of the present invention, the target aiming process in step S3 is as follows:

[0097] Step S31: Based on the target position information measured by the detection device 58, calculate the elevation angle, azimuth angle and launch speed required for the electromagnetic transmitter 6 to launch the fire extinguishing projectile 7;

[0098] Step S32: Adjust the cradle 5 to the required pitch and azimuth angles for launch using the pitch transmission mechanism 3 and azimuth transmission mechanism 4 of the launch turret;

[0099] Step S33: Fire extinguishing projectile 7 via electromagnetic transmitter 6.

[0100] In one specific embodiment of the present invention, the attitude adjustment method of the launching turret in step S2 is as follows:

[0101] Step Q1: Adjust the pitch movement of the launch turret through the pitch transmission mechanism 3; the pitch transmission mechanism 3 controls the extension and retraction of the electric cylinder 31; thereby causing the rocker arm 5 to deflect at the pitch angle relative to the turntable 2;

[0102] Step Q2: Adjust the azimuth movement of the launch turret through the azimuth transmission mechanism 4; specifically, the azimuth transmission mechanism 4 outputs torque, thereby driving the turntable 2 of the launch turret to rotate relative to the base 1; when the turntable 2 rotates, it drives the rocker arm 5 and the electromagnetic transmitter 6 and detection device 58 installed on the rocker arm 5 to move synchronously.

[0103] Step Q3: When the pitch transmission mechanism 3 and the azimuth transmission mechanism 4 move, the pitch angle and azimuth angle of the cradle 5 are monitored in real time through the pitch angle measuring combination 26 and the azimuth angle measuring combination 25.

[0104] In one specific embodiment of the present invention, in step S3, the process of the electromagnetic transmitter 6 launching the fire extinguishing projectile 7 is as follows:

[0105] Step S31: Load the fire extinguishing bomb 7 into the electromagnetic launcher 6;

[0106] Step S32: After the drive coil 625 is energized, it generates electromagnetic induction with the transmitting armature 66, driving the transmitting armature 66 to move linearly relative to the drive coil 625.

[0107] Step S33: When the launching armature 66 is linearly displaced, it pushes the fire extinguishing projectile 7 to move synchronously, providing the initial velocity for the fire extinguishing projectile 7 to be launched from the tube.

[0108] In one specific embodiment of the present invention, a positioning cylinder 64 is fixedly installed inside the drive coil 625; a positioning sensor 65 is provided on the positioning cylinder 64; the positioning sensor 65 monitors whether the fire extinguishing bomb 7 is loaded in place; when the fire extinguishing bomb 7 is loaded in place, the launching armature 66 contacts the positioning sensor 65 on the positioning cylinder 64.

[0109] In one specific embodiment of the present invention, the fire extinguishing process of the fire extinguishing bomb is as follows:

[0110] Step M1: After the fuse 71 is detonated, the black powder in the powder box 72 is ignited. The burning of the black powder generates high pressure, which pushes the piston 73 to slide along the cartridge 74.

[0111] Step M2: Piston 73 pressurizes the extinguishing agent in the cartridge 74. The pressure of the extinguishing agent acts on the fairing 75, pushing the fairing outward and cutting off the connecting pin 76 between the fairing 75 and the cartridge 74. After the fairing 75 moves out of the cartridge, the spray hole 752 is exposed.

[0112] Step M3: Piston 73 pushes the extinguishing agent in cartridge 74 outward. The extinguishing agent continues to move under the action of piston 73 and is sprayed out from spray hole 752, thus realizing the spraying of the extinguishing agent.

[0113] Furthermore, before starting the vehicle to begin firefighting operations, the commander must walk around the vehicle to check the cable connections of the electromagnetic transmitter and the transmitting turret. Upon returning to the driver's cab, the commander must check the initial positions of the control panel buttons, ensuring all four switches on the control panel are in their initial positions (pop-up) and the control levers are in a naturally upright position. Only after the commander confirms that everything is normal can the vehicle be started to carry out the firefighting and rescue mission.

[0114] It is important to note that when vehicles arrive near the fire scene, operators, under the command of the supervisor, must park the vehicles in designated locations. When conducting firefighting operations, parking locations must be selected according to certain requirements. If the slope of the parking spot exceeds ±3°, a lower slope must be selected for re-parking or wooden blocks must be used. Ensure that there is unobstructed visibility between the parking point and the fire location (the radius of the visual envelope cylinder should be no less than 12m), with no obstructions or excessively tall objects in between. If there is no unobstructed visibility between the vehicle parking point and the fire location (i.e., the radius of the visual envelope cylinder is less than 12m), the fire extinguishing projectiles may be accidentally triggered during flight, potentially causing them to miss the target or other hazards.

[0115] Before launching, the vehicle must be grounded after shutdown by driving grounding pins into the ground. High-voltage and low-voltage grounding devices are located on both sides of the vehicle. If conditions dictate that grounding must be done on one side only, the distance between the high-voltage and low-voltage grounding devices should be at least 3 meters.

[0116] Furthermore, such as Figure 21 As shown, in step S1, the vehicle body needs to be leveled. Four leveling electric cylinders control the balancing outriggers 9 to extend and support the vehicle. Angle measurements are taken using the pitch and angle measuring combination on the electromagnetic transmitter 6 to observe whether the ground below the balancing outriggers 9 meets the leveling requirements. If the requirement of less than ±3° is not met, leveling shims can be placed before leveling and unfolding. The leveling electric cylinders control the balancing outriggers 9 to automatically extend, support, and level the vehicle. After leveling, all tilt angles of the vehicle body are 0°.

[0117] Furthermore, in step S2, the target detection stage, i.e. the fire source location stage, the operator controls the detection direction of the detection device 58 by controlling the elevation and azimuth angles of the launch turret, thereby searching for the fire source and measuring the distance with a laser rangefinder. After the distance measurement is successful, calculations are performed to obtain the azimuth and elevation angles of the launch turret required for the electromagnetic launcher 6 to launch the fire extinguishing projectile 7 to the target position, as well as the detonation time of the fire extinguishing projectile fuse.

[0118] Furthermore, after the fire extinguishing bomb 7 is installed, the electromagnetic launcher 6 is adjusted to the launch angle via the display console. After the launch angle is adjusted, the launcher is charged using the power system. When the voltage required for launch is reached, the electromagnetic launch system meets the launch conditions, and the launch command can be executed by pressing the launch button on the display console.

[0119] Furthermore, after launch, the fixed-focus camera will automatically begin recording video, and the fire extinguishing process will automatically exit when the video recording ends.

[0120] Furthermore, after the firefighting work is completed and it is confirmed that there are no personnel or vulnerable equipment near the turret or vehicle body, click "Leveling and Retraction" on the software interface. The system will then begin retraction, automatically leveling the launch turret and retracting the balancing outriggers to their initial positions.

[0121] Example 2

[0122] In one specific embodiment of the present invention, a fire truck is provided that is applied to the fire extinguishing method of Embodiment 1.

[0123] The fire truck consists of: a vehicle body (8), an electromagnetic launch system, fire extinguishing projectiles (7), and outriggers (9). The fire extinguishing projectile is transported by chassis, allowing it to approach the fire scene at close range. It conducts firefighting operations by launching fire extinguishing projectiles using an electromagnetic launcher. The system is powered by an onboard diesel engine, eliminating the need for an external power source. Once deployed, the vehicle uses detection devices to locate the fire source and has the capability to calculate launch parameters. It employs a non-centrally bursting extinguishing agent spraying method, preventing open flames during spraying and ensuring the projectile remains intact during static spraying.

[0124] In one specific embodiment of this invention, the electromagnetic launching system is fixedly mounted on the vehicle body 8; the electromagnetic launching system is used to launch fire extinguishing projectiles 7, which are used to spray extinguishing agents; the supporting legs 9 are located below the vehicle body 8, and the length of the supporting legs 9 is adjustable. In practice, the fire truck is transported by chassis to approach the fire scene and conducts firefighting operations by launching fire extinguishing projectiles 7 using the electromagnetic launching system. The location coordinates of the fire source are detected using a detection device 58, and a multi-hole spraying method is used to spray the extinguishing agent. No open flame is generated during the spraying process, and the projectile remains intact during static spraying.

[0125] In one specific embodiment of the present invention, there are four balancing legs 9; the length of the balancing legs 9 is adjusted by a leveling electric cylinder. Figure 20 As shown, the fire truck for long-distance firefighting uses a programmable controller to control four leveling electric cylinders to work simultaneously and level the four outriggers 9.

[0126] There are two installation methods between the outriggers 9 and the chassis of the vehicle body 8: fixed and rotating.

[0127] 1) Fixed installation:

[0128] like Figure 18 As shown, the balancing support leg 9 is fixedly connected to the vehicle body 8.

[0129] The outriggers 9 are installed perpendicular to the vehicle body 8 and are extended and retracted by a leveling electric cylinder to achieve leveling support for the vehicle body. After the firefighting work is completed, the leveling electric cylinder drives the outriggers 9 to retract, allowing the vehicle to return to a driving state.

[0130] 2) Rotary installation:

[0131] like Figure 19 , Figure 20 As shown, the balancing support leg 9 is rotatably mounted to the vehicle body 8; a linear motor 901 is mounted on the chassis of the vehicle body 8; the balancing support leg 9 and the linear motor 901 are rotatably connected by a connecting rod 902; one end of the connecting rod 902 is hinged to the output shaft of the linear motor 901, and the other end is hinged to the balancing support leg 9; when the linear motor 901 outputs linear displacement, the balancing support leg 9 rotates relative to the vehicle body 8.

[0132] When the fire truck is in motion, the outriggers 9 are in the retracted position, such as... Figure 19 As shown; before launching the fire extinguishing projectile 7, the linear motor 901 outputs linear displacement, which pushes the balance leg 9 to extend and maintain a perpendicular state with the vehicle body 8 via the connecting rod 902; further, the balance leg 9 extends to provide balanced support for the vehicle body. After the firefighting work is completed, the leveling electric cylinder drives the balance leg 9 to retract, and the vehicle body 8 is supported by the wheels. Further, the linear motor 901 drives the balance leg 9 to deflect upwards via the connecting rod, so that the balance leg 9 and the chassis of the vehicle body 8 form an acute angle, as shown. Figure 19 As shown, switch to driving mode.

[0133] The fire truck is equipped with an electromagnetic launch system:

[0134] like Figure 1-15 As shown, the electromagnetic launch system includes: a launch turret, an electromagnetic launcher 6, and a detection device 58.

[0135] The launch turret includes a pitch transmission mechanism 3 and an azimuth transmission mechanism 4, which can adjust the azimuth and pitch angles of the launch turret's cradle 5.

[0136] The electromagnetic launcher 6 is mounted on the cradle 5 of the launch turret and is capable of electromagnetically launching the fire extinguishing bomb 7. The fire extinguishing bomb 7 can be a fire extinguishing bomb, a smoke bomb, or a blasting bomb, etc.

[0137] The detection device 58 includes an infrared camera and a laser rangefinder; the infrared camera is used to detect the direction of the target, and the laser rangefinder is used to detect the distance between the target position and the emission point.

[0138] The azimuth measuring assembly 25 and the elevation measuring assembly 26 are used; the detection device 58 is used to detect the target position, which can be the ignition point, explosion point, etc., depending on the actual needs. The azimuth measuring assembly 25 and the elevation measuring assembly 26 can monitor the azimuth and elevation angles of the cradle 5 in real time, thereby realizing the adjustment of the elevation and azimuth angles when the electromagnetic transmitter 6 launches the load.

[0139] During implementation, the detection device 58 detects the target position, the pitch transmission structure 3 and the azimuth transmission mechanism 4 drive the rocker arm 5 and the electromagnetic launcher 6 to adjust the angle, and after the electromagnetic launcher 6 aims at the target, it launches the fire extinguishing projectile 7.

[0140] (1) Launch turret

[0141] In one specific embodiment of the present invention, the launch turret includes: a base 1, a turntable 2, a pitch transmission mechanism 3, an azimuth transmission mechanism 4, and a cradle 5. The turntable 2 is rotatably mounted on the base 1, and the azimuth transmission mechanism 4 drives the turntable 2 to rotate circumferentially relative to the base 1; the cradle 5 is mounted on the turntable 2 via the pitch transmission mechanism 3, and the pitch transmission mechanism 3 drives the cradle 5 to pitch; the cradle 5 is used to mount the launcher 6; an anti-recoil device 59 is provided on the cradle 5; the launcher 6 is slidably mounted on the cradle 5, and the launcher 6 is connected to the anti-recoil device 59.

[0142] like Figure 1-9 As shown, the turntable 2 is mounted above the base 1. The azimuth transmission mechanism 4 is fixedly connected to the turntable 2 by bolts. The rear sides of the cradle 5 are hinged to the two support arms 23 on the upper part of the turntable 2. One end of the pitch transmission mechanism 3 is hinged to the middle of the turntable 2, and the other end is hinged to the front of the cradle 5. The launcher 6 is connected to the cradle 5 via the guide rail 57 and the anti-recoil device 59.

[0143] In one specific embodiment of the present invention, the base 1 includes: a base 11, a buffer bracket 12, a buffer 13, and a stiffening plate 14; as shown Figure 3 As shown, the stiffening plate 14 is welded to the base 11, the buffer bracket 12 is bolted to the base 11, and the buffer 13 is fixedly connected to the buffer bracket 12 by a round nut. The main function of the base 1 is to provide an installation reference for the launching device, and it also has the function of azimuth buffering and stopping.

[0144] In one specific embodiment of the present invention, such as Figure 4 As shown, the turntable 2 includes: a turntable bearing 21, a support platform 22, a support arm 23, a baffle 24, an azimuth angle measuring assembly 25, a pitch angle measuring assembly 26, and a cable mounting plate 27. The turntable 2 serves to support the cradle 5 and also has the function of azimuth rotation.

[0145] Specifically, the support platform 22 is rotatably mounted on the base 1 via a slewing bearing 21; the lower surface of the slewing bearing 21 is bolted to the base 1, and the upper surface of the slewing bearing 21 is bolted to the support platform 22. The function of the slewing bearing 21 is to provide rotational support. Two left and right support arms 23 are located on either side of the circular support platform 22, and the support arms 23 are fixedly connected to the support platform 22 via bolts. The baffle 24 is fixedly connected to the support platform 22 via bolts. Figure 4 As shown, the baffle 24 has a semi-enclosed structure, with its lower end protruding from the lower surface of the turntable 2. When the turntable 2 rotates circumferentially, the baffle 24 can contact the buffer 13. The baffle 24 cooperates with the buffer 13 on the base 1 to achieve the purpose of azimuth rotation stop, thereby increasing the safety of azimuth movement.

[0146] Specifically, the azimuth measuring assembly 25 is located at the left front of the turntable and is threadedly connected to the support platform 22. The azimuth measuring assembly 25 includes a measuring gear and an encoder. The measuring gear meshes with the turntable bearing 21, and the encoder is used to monitor the number of rotations of the measuring gear, thereby determining the rotation angle of the turntable bearing 21. Furthermore, the azimuth measuring assembly 25 acquires the rotation angle in real time and feeds it back to the control center to facilitate azimuth tracking of the target.

[0147] Specifically, the pitch angle measuring assembly 26 is installed at the hinge shaft hole between the support arm 23 and the rocker arm 51. The function of the pitch angle measuring assembly 26 is to acquire the pitch angle in real time and feed it back to the control center to facilitate target pitch tracking. The pitch angle measuring assembly 26 is an angle sensor used to monitor the pitch angle of the rocker arm 51. For example, the pitch angle measuring assembly 26 is an angle sensor used to monitor the angle change between the rocker arm 51 and the support arm 23.

[0148] The cable mounting plate 27 is used to connect the power cables of each component and the central controller.

[0149] In one specific embodiment of the present invention, such as Figure 5 As shown, the pitch transmission mechanism 3 includes: an electric cylinder 31, an upper support lug 32, a lower support lug 33, and a positioning pin 34.

[0150] Specifically, the upper support lug 32 is welded to the rocker arm 51 of the cradle 5, and the lower support lug 33 is welded and fixed to the support platform 22 of the turntable 2. One end of the electric cylinder 31 is rotatably connected to the upper support lug 32 via a positioning pin 34, and the other end is connected to the lower support lug 33 via a positioning pin 34. In this invention, the electric cylinder 31, the support arm 23, and the rocker arm 51 form a triangular structure. When the electric cylinder 31 extends or retracts, the electric cylinder 31 and the rocker arm 51 deflect synchronously. The extension and retraction of the electric cylinder 31 can realize the pitch movement of the cradle 5, thereby realizing the pitch movement of the launcher 6 and adjusting the launch angle.

[0151] One end of the rocker arm 51 is hinged to the electric cylinder 31, and the other end is hinged to the upper end of the support arm 23; when the electric cylinder 31 outputs linear displacement, the rocker arm 51 undergoes pitching motion.

[0152] In one specific embodiment of the present invention, such as Figure 6 As shown, the orientation transmission mechanism 4 includes: a servo motor 41, a reducer 42, a pinion 43, and a cover 44.

[0153] Specifically, the servo motor 41 is used to output rotary motion. The reducer 42 is fixed to the support platform 22 by bolts. The output shaft of the servo motor 41 is fixedly connected to the input shaft of the reducer 42, and a pinion 43 is fixedly mounted on the output shaft end of the reducer 42.

[0154] Specifically, the pinion 43 meshes with the turntable bearing 21. A meshing gear ring is provided on the inner ring side of the turntable bearing 21, which can mesh and transmit power with the pinion 43. When the pinion 43 rotates, the inner ring of the turntable bearing 21 drives the support platform 22 to rotate synchronously. The rotation of the pinion 43 can drive the support platform 22 to rotate via the turntable bearing 21. The servo motor 41 is the power source for the azimuth movement of the transmitter 6; precise control of the azimuth movement of the transmitter 6 can be achieved by controlling the servo motor.

[0155] Furthermore, the rocker arm 51 is connected to the pitch transmission mechanism 3; it can pitch under the drive of the pitch transmission mechanism. The upper sleeve 52 and the lower sleeve 53 are both fixedly installed on the rocker arm 51, and the upper sleeve 52 and the lower sleeve 53 are symmetrically arranged; the transmitter 6 passes through the front sleeve 54 and is fixed between the upper sleeve 52 and the lower sleeve 53; and the transmitter 6 is slidably engaged with the guide rail 57.

[0156] In one specific embodiment of the present invention, such as Figure 7 , Figure 8 As shown, the cradle 5 includes: a rocker arm 51, an upper sleeve 52, a lower sleeve 53, a front sleeve 54, an upper support plate 55, a lower support plate 56, a guide rail 57, and a recoil mechanism 59. The function of the cradle 5 is to support the transmitter 6 and simultaneously withstand the recoil force generated by electromagnetic emission.

[0157] Specifically, the upper sleeve 52, lower sleeve 53, front sleeve 54, upper support plate 55, lower support plate 56, and guide rail are symmetrically distributed along the center line of the rocker arm 51.

[0158] Specifically, the lower sleeve 53 is located at the lower rear of the rocker arm 51, and the lower support plate 56 is located below the front of the rocker arm 51. The lower sleeve 53 and the lower support plate 56 are fixedly connected to the lower part of the rocker arm 51 by welding. The upper sleeve 52, the upper support plate 55, and the front sleeve 54 are sequentially fixed to the upper part of the rocker arm 51 from back to front by screw connections.

[0159] Specifically, such as Figure 9 As shown, L-shaped guide rails 57 are welded to the inner side of rocker arms 51. There are four sections of guide rails 57, arranged in two sets on the rocker arms 51 on both sides, with two sections of guide rails 57 symmetrically arranged in each set. The four sections of guide rails 57, together with the upper sleeve 52 and the front sleeve 54, form a slide, allowing the launcher 6 to be clamped and fixed within the slide, and enabling the launcher to move within the slide under recoil.

[0160] In one specific embodiment of the present invention, the cradle 5 is further provided with a detection device 58.

[0161] Furthermore, the detection device 58 is bolted to the upper support plate 55. The function of the detection device 58 is to detect the target and feed the target back to the control system. The control system issues instructions based on the target data to drive the launch device to complete the launch mission.

[0162] (2) Electromagnetic transmitter

[0163] Electromagnetic transmitter 6, such as Figure 10 The diagram shows: a guidance section 61, an acceleration section 62, and a recoil section 63.

[0164] The acceleration section 62 includes: a drive coil 625, a reinforcing frame, and a transmitting armature 66; the reinforcing frame is disposed outside the drive coil 625; the transmitting armature 66 is disposed inside the drive coil 625, and the transmitting armature 66 is capable of linear displacement along the axis of the drive coil 625 under the action of the electromagnetic force generated by the drive coil 625; the transmitting armature 66 is used to provide the driving force for the load 8 to be launched; the guiding section 61 is used to guide the load 8 to the exit posture.

[0165] Guide Section 61:

[0166] Specifically, the guidance section includes a guide tube and a front support assembly 611. The guide tube is a cylindrical structure used to ensure the attitude of the fire extinguishing projectile 7 (e.g., a fire extinguishing projectile) upon exiting the tube. The guide tube is made of a high-strength non-metallic material to ensure that no induced eddy currents are generated in the guide tube under the strong magnetic field environment during launch. The front support 611 is a flat plate structure protruding from the guide tube and is fixedly connected to the guide tube. The front support 611 provides support for the entire electromagnetic launch device. To ensure strength, the support assembly is made of a metallic material. The guidance section 61 and the acceleration section 62 are connected by a flange, on which bolts and pins are installed for the connection.

[0167] Acceleration Segment 62:

[0168] Specifically, such as Figure 11 , Figure 12As shown, the acceleration section 62 includes: a reinforcing frame, a drive coil 625, a cable connector 627, a positioning cylinder 64, and a positioning sensor 65.

[0169] The drive coil 625 has five stages, that is, five drive coils 625 are arranged in parallel to provide the driving force required for electromagnetic emission. Furthermore, cable connectors 627 are provided on the outside of the drive coils 625, with each stage of drive coil 625 having one cable connector 627. The cable connectors 627 are connected to the power supply via coaxial cables. Furthermore, insulation treatment should be applied at the cable connectors 627, and the number of cable connectors 627 corresponds to the number of drive coils 625.

[0170] The single-stage drive coil comprises, from the inside out: an inner cylinder, a coil, and an outer insulating material. The inner cylinder of the drive coil 625 is made of epoxy material, serving both to guide the movement of the fire extinguishing projectile and to insulate the drive coil 625 from the launching armature 66. When a pulse current is applied to the drive coil 625, the radial force of the coil is constrained within the external encapsulation device, while the axial force of the coil is transmitted through the external encapsulation device to the support structure of the electromagnetic transmitter 6, i.e., the external reinforcing frame.

[0171] Specifically, the reinforcing frame is used to radially constrain the drive coil 625.

[0172] Based on the emission principle of the drive coil, the drive coil 625 generates electromagnetic eddy currents, which drive the internal transmitting armature 66 to move along the axis of the drive coil 625 via electromagnetic force. The drive coil 625 is connected to a pulse capacitor, and the discharge of the capacitor in the control circuit is controlled by an independent trigger switch. The transient current flowing through the drive coil 625 induces a transient magnetic field in the inner cavity, which in turn induces eddy currents on the surface and inside the transmitting armature 66. Because the eddy currents are subjected to the Lorentz force in the changing magnetic field, the transmitting armature 66 gains forward acceleration, driving the load 8 to accelerate.

[0173] During launch, the drive coil 625 will be subjected to a large radially outward electromagnetic force. To constrain the drive coil 625 and prevent radial deformation, a stiffening frame with high rigidity and strength is required to fix it to the outside of the drive coil 625. To reduce induced eddy currents, the stiffening frame adopts a hollow frame structure, divided into two semi-circular first fastening steel ribs 622 and second fastening steel ribs 624, and the first fastening steel ribs 622 and second fastening steel ribs 624 are fastened together by bolt assembly 626.

[0174] The reinforcing frame includes: a front insulating retaining ring 621, a rear insulating retaining ring 623, a second fastening steel frame 624, and a bolt assembly 626; the first fastening steel frame 622 and the second fastening steel frame 624 are fastened together by the bolt assembly 626 and assembled into a ring-shaped steel frame; the front insulating retaining ring 621 and the rear insulating retaining ring 623 are respectively fixedly installed at both ends of the ring-shaped steel frame. Further, the front connecting flange and the front insulating retaining ring 621 are connected to the ring-shaped steel frame by a first bolt, and the rear insulating retaining ring 623 and the rear connecting flange 301 are connected to the ring-shaped steel frame by a second bolt.

[0175] Specifically, the front insulating retaining ring 621 and the rear insulating retaining ring 623 are used to position the two ends of the acceleration section 62. Furthermore, the front insulating retaining ring 621 and the rear insulating retaining ring 623 are made of insulating material to prevent the induced eddy currents generated on the reinforcing frame from being conducted to other metal structures on the electromagnetic launch device.

[0176] Specifically, an insulating pad 628 is provided between the first fastening steel frame 622 and the second fastening steel frame 624 to prevent electric creep.

[0177] Furthermore, the bolt assembly 626 includes: a bolt, a nut, a first insulating sleeve, and a second insulating sleeve; the bolt passes sequentially through the first fastening steel member 622, the second fastening steel member 624, and the insulating washer 628 to be fastened to the nut; the bolt head is covered by the first insulating sleeve; the nut is covered by the second insulating sleeve. By providing the insulating sleeve, the electrical conduction between the first fastening steel member 622 and the second fastening steel member 624 can be blocked, effectively reducing eddy current losses.

[0178] Specifically, the positioning cylinder 64 is located at the tail of the acceleration section 62, and its function is to limit the initial position of the load loading. The positioning cylinder 64 is made of non-metallic material, and the positioning cylinder 64 is threadedly connected to the rear insulating retaining ring 623, and is reinforced with thread-locking adhesive during assembly to ensure accurate initial axial positioning. Specifically, the positioning cylinder 64 is arranged side by side with the transmitting armature 66, and the positioning cylinder 64 is fixedly connected to the reinforcing frame.

[0179] Specifically, the positioning sensor 65 is mainly used to detect whether the payload is properly loaded, ensuring launch safety. For example... Figure 12 As shown, the fire extinguishing bomb 7, the positioning cylinder 64, and the launching armature 66 are arranged side by side inside the drive coil 625. A positioning sensor 65 is installed at the end of the positioning cylinder 64 that contacts the launching armature 66; the positioning sensor 65 is used to monitor whether the fire extinguishing bomb 7 is properly loaded. When the load 8 is properly loaded, the load 8 contacts one end of the launching armature 66, and the positioning sensor 65 contacts the other end of the launching armature 66.

[0180] like Figure 14As shown, the transmitting armature 66 includes: an armature outer cylinder 661, an armature bushing 662, and an armature retaining ring 663; the armature bushing 662 and the armature retaining ring 663 are arranged side by side inside the armature outer cylinder 661. Specifically, the armature bushing 662 has a greater strength than the armature outer cylinder 661, which is used to ensure the strength and rigidity of the transmitting armature 66. The armature outer cylinder 661 has a higher conductivity than the armature bushing 662; this is used to ensure the electromagnetic induction of the transmitting armature 66, enabling it to move rapidly under the electromagnetic force of the drive coil 625.

[0181] Specifically, the armature retaining ring 663 is fixedly connected to the armature outer cylinder 661. An annular boss is provided on the inner side of the armature outer cylinder 661. The annular boss is used to limit the axial position of the armature bushing 662. The armature retaining ring 663 clamps the armature bushing 662 between the annular boss and the armature retaining ring 663.

[0182] Rear-seat section 63:

[0183] In one specific embodiment of the present invention, the electromagnetic transmitting device further includes a recoil section 63. For example... Figure 15 As shown, the recoil section 63 is provided with a recoil connecting plate 631 and a rear support 632. Specifically, the acceleration section 62 and the recoil section 63 are connected by a flange; the rear support 632 is a flat plate structure protruding from the main structure of the recoil section 63, and the rear support 632 overlaps the guide rail 57. The rear support 632 is used to support the entire electromagnetic launching device and slides relative to the guide rail 57 as the electromagnetic launching device recoils. The recoil section 63 is made of metal material and has reinforcing ribs arranged circumferentially to increase structural strength.

[0184] Specifically, the recoil connecting plate 631 is used to fix the electromagnetic launching device of the present invention to the anti-recoil device 59. The connection methods between the recoil connecting plate 631 and the anti-recoil device include: bolt connection, welding, bonding, etc.

[0185] In practice, the launching armature 66 generates eddy currents under the action of the pulsed current of the driving coil 625. These eddy currents, combined with the pulsed magnetic field, generate axial thrust, propelling the fire extinguishing projectile 7 forward until it exits the launch tube. The electromagnetic launcher 6 utilizes a sequence of pulsed discharges to generate a changing magnetic field, causing magnetic coupling between the driving coil and the accelerated object to produce a driving force. The driving coil and armature are coaxially aligned, with the armature moving within the driving coil. After the coil is turned on, the pulsed power supply discharges to the driving coil, generating a pulsed current. The resulting transient magnetic field interacts with the circumferential eddy currents induced in the conductor armature, causing the armature to generate axial thrust, propelling the armature and the fire extinguishing projectile forward. Since the driving coil 625's displacement of the launching armature 66 is a mature technology in this field, the coil structure will not be described in detail in this invention.

[0186] (3) Detection device

[0187] The detection device includes a zoom visible light camera, a fixed-focus visible light camera, an infrared camera, and a laser rangefinder.

[0188] Before use, the detection device 58 needs to be calibrated for its zoom visible light optical axis, fixed-focus visible light optical axis, infrared optical axis, and laser optical axis. The calibration method for the detection device 58 is as follows: adjust the mounting axes of the zoom visible light camera, fixed-focus visible light camera, infrared camera, and laser rangefinder so that the optical axes of the fixed-focus visible light camera, fixed-focus visible light camera, infrared camera, and laser rangefinder are within ±20″ of the reference plane of the mounting housing of the detection device 58. At this point, the four optical axes are considered to meet the requirement of mutual consistency. After adjustment, fix the mounting brackets of the zoom visible light camera, fixed-focus visible light camera, infrared camera, and laser rangefinder onto the housing of the detection device 58 respectively.

[0189] During implementation, the detection device 58 uses a zoomable visible light camera to aim at the target (fire source).

[0190] Specifically, the detection device 58 is rotated using a turret to bring the target into the field of view of the zoom visible light camera. The zoom control module controls the magnification of the zoom visible light camera to center the target on the display screen (aligning the center point of the target ranging image with the target point). Furthermore, the height of the target position is adjusted to 3 / 4 of the total screen height. Based on the optical axis deviation at the current magnification, the angle of the detection device 58 is finely adjusted to ensure that the visible light optical axis at the current magnification matches the reference optical axis.

[0191] The laser rangefinder performs laser ranging multiple times in succession. After removing the maximum and minimum values ​​from the multiple measured distances, it averages the data points that fall in the middle and uses this average value as the target slant range. In this way, the detection device completes the search and measurement of the target.

[0192] The following describes the structure and operation of the Fire Extinguishing Bomb 7:

[0193] Fire extinguishing bombs, such as Figure 16 As shown, it includes: fuse 71, cartridge 74 and stabilizing section 77.

[0194] The fuse 71 is installed at the front end of the cartridge 74, and the stabilizing section 77 is installed at the rear end of the cartridge 74; the fuse 71 has a timed detonation function. The cartridge 74 is sequentially equipped with a powder cartridge 72, a piston 73, and a fairing 75. The extinguishing agent is filled in the cartridge 74 between the piston 73 and the fairing 75, and the fairing 75 is fitted inside the cartridge 74. When the piston 73 slides, it can push the connection between the fairing 75 and the cartridge 74 to disconnect; after the connection between the fairing 75 and the cartridge 74 is disconnected, the fairing 75 can slide relative to the cartridge 74.

[0195] Furthermore, the fairing 75 is disposed inside the cartridge 74 and is fixedly connected to the cartridge 74 by a connecting pin 76, such as... Figure 17 As shown.

[0196] The fairing 75 is provided with a spray hole 752. Before detonation, the spray hole 752 is hidden inside the cartridge 74. After detonation, the spray hole 752 is exposed to the outside of the cartridge 74, and the extinguishing agent can overflow from the spray hole 752 to achieve the spraying of the extinguishing agent.

[0197] In one specific embodiment of the present invention, the powder cartridge 72 is filled with gunpowder. After the fuse 71 is detonated, the powder cartridge 72 detonates immediately. The piston 73 is slidably mounted in the cartridge 74 and is in sealed contact with the cartridge 74. After the gunpowder in the powder cartridge 72 explodes, it pushes the piston 73 to slide backward in the cartridge 74, compressing the extinguishing agent.

[0198] In one specific embodiment of the present invention, a first limiting protrusion is provided on the inner side of the projectile 74, and a second limiting protrusion 751 is provided on the outer side of the end of the fairing 75; the inner diameter of the first limiting protrusion is equal to the outer diameter of the fairing 75, allowing the fairing 75 to slide relative to the first limiting protrusion. The outer diameter of the second limiting protrusion 751 is equal to the inner diameter of the projectile 74, and the inner diameter of the first limiting protrusion is smaller than the outer diameter of the second limiting protrusion 751, for example... Figure 17 As shown. When the fuse 71 and the cartridge 72 are detonated, the piston 73 pushes the extinguishing agent and the fairing 75 to move, the connecting pin 76 breaks, and the fairing 75 extends out of the cartridge 74. However, due to the limiting effect of the first limiting ring and the second limiting ring 751, the first limiting ring can prevent the second limiting ring 751 from continuing to slide. This allows the spray hole 752 of the fairing 75 to protrude from the end of the cartridge 74, enabling the spraying of the extinguishing agent. However, the fairing 75 will not detach from the cartridge 74.

[0199] Furthermore, the stabilizing section 77 is fixedly connected to the fairing 75. When the fairing 75 slides down to the cartridge 74 under the thrust of the piston 73 and the extinguishing agent, the stabilizing section 77 and the fairing 75 move synchronously.

[0200] In one specific embodiment of the present invention, multiple sets of tail fins 78 are circumferentially mounted on the stabilizing section 77, and the tail fins 78 can ensure the stability of the fire extinguishing projectile during flight. Further, the tail fins 78 are foldable. Specifically, the tail fins 78 include: a fixed section and a deployable section; the fixed section is fixedly connected to the stabilizing section 8 by welding or bonding; the fixed section and the deployable section are rotatably connected, and a torsion spring is provided between the fixed section and the deployable section.

[0201] Specifically, the fixed section and the deployable section are hinged together by a rotating shaft, allowing them to rotate relative to each other. A torsion spring is sleeved on the rotating shaft; when the fixed and deployable sections are folded, the torsion spring is compressed, and when they are deployed, the torsion spring is deployed. When the fire extinguishing projectile is inside the launch tube, the torsion spring is compressed, and the fixed and deployable sections are folded. After the fire extinguishing projectile is launched, the deployable section unfolds under the elastic force of the torsion spring, ensuring that the fire extinguishing projectile 7 can maintain long-distance flight and achieve long-distance fire extinguishing.

[0202] Compared with the prior art, the technical solution provided in this embodiment has at least one of the following beneficial effects:

[0203] (1) The electromagnetic launcher 6 of the present invention mainly uses the energy storage capacitor to discharge the inductor coil assembly to generate a pulse magnetic field, which induces eddy currents in the armature and interacts with the current in the drive coil 625 to generate electromagnetic force, accelerate the movement of the launching armature, and continuously accelerate through the multi-stage drive coil 625 to launch the launching armature 66 and the fire extinguishing projectile 7 out of the gun barrel at a high speed.

[0204] (2) Achieve precise fire extinguishing at a distance through processes such as leveling the vehicle body with an electric cylinder, detecting fire sources with photoelectric sensors, and controlling and calculating ballistics.

[0205] (3) The optical axes of the zoom visible light camera, fixed-focus visible light camera, infrared camera and laser rangefinder are calibrated and integrated into one to achieve high-precision fire source detection in various environments.

[0206] This invention enables independent forest firefighting operations from a single vehicle. By launching fire extinguishing projectiles, it precisely delivers extinguishing agents to the fire scene over long distances, achieving rapid and effective fire suppression. It also features convenient "one-button" withdrawal. The fire extinguishing projectiles utilize electromagnetic coil launching technology, resulting in smokeless and flameless launches with no environmental pollution, high kinetic energy, and high launch efficiency. The extinguishing agent is released via spraying, and the release process produces no lethal fragments, improving the safety of firefighting operations.

[0207] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A fire extinguishing method for long-distance firefighting, characterized in that, Includes the following steps: Step S1: Adjust the outriggers of the fire truck to level and support it; Step S2: Detect the target location using the detection device of the electromagnetic launch system; Step S3: Adjust the attitude of the launch turret according to the position information detected by the detection device, and locate and aim at the target; After aiming, the electromagnetic launcher fires the fire extinguishing projectile; The launch turret includes a cradle; the cradle includes a rocker arm, an upper sleeve, a lower sleeve, a front sleeve, an upper support plate, a lower support plate, a guide rail, and a recoil mechanism; the L-shaped guide rail is welded to the inner side of the rocker arm; the guide rail, the upper sleeve, and the front sleeve cooperate to form a slide, so that the launcher is clamped and fixed in the slide, and the launcher can move in the slide under the action of recoil force; The electromagnetic transmitter includes an acceleration section; the acceleration section includes a drive coil, a reinforcing frame, and a transmitting armature; the transmitting armature includes an armature outer cylinder, an armature bushing, and an armature retaining ring; the armature bushing and the armature retaining ring are arranged side by side inside the armature outer cylinder; the strength of the armature bushing is greater than that of the armature outer cylinder; the conductivity of the armature outer cylinder is greater than that of the armature bushing. Step S4: When the fire extinguishing bomb is launched to the target location, the fire extinguishing bomb is detonated, and the fire extinguishing agent is sprayed.

2. The fire extinguishing method for long-distance firefighting according to claim 1, characterized in that, The balancing outriggers are fixedly or rotatably installed between the vehicle body and the fire engine.

3. The fire extinguishing method for long-distance firefighting according to claim 2, characterized in that, When the outriggers are fixedly installed on the fire truck body: the outriggers are perpendicular to the vehicle body; the leveling electric cylinder drives the outriggers to extend and retract, supporting and leveling the vehicle body.

4. The fire extinguishing method for long-distance firefighting according to claim 2, characterized in that, When the outriggers are rotated and installed on the fire truck body: the linear motor drives the outriggers to rotate relative to the vehicle body through the connecting rod, so that the outriggers are adjusted to be perpendicular to the vehicle body; then the leveling electric cylinder drives the outriggers to extend and retract, supporting the vehicle body.

5. The fire extinguishing method for long-distance firefighting according to claim 1, characterized in that, In step S2, the detection and positioning process of the detection device on the target location is as follows: Step S21: The launch turret adjusts the attitude of the cradle through the pitch and azimuth transmission mechanisms, thereby changing the azimuth and pitch angles of the detection device on the cradle; the cradle maintains the attitude change until the target appears in the field of view of the zoomable visible light camera of the detection device; the target position is detected. Step S22: The detection device controls the magnification of the zoom visible light camera to adjust the position of the target on the display screen; the transmission turret adjusts its attitude according to the position information of the target detected by the detection device to keep the target always in the display screen; when the zoom visible light camera is adjusted to the maximum magnification, the transmission turret adjusts its attitude to center the target on the display screen. Step S23: The detection device uses a laser rangefinder to detect the distance between the target location and the launch point, thus completing the target localization.

6. The fire extinguishing method for long-distance firefighting according to claim 5, characterized in that, In step S3, the target aiming process is as follows: Step S31: Based on the target position information measured by the detection device, calculate the elevation angle, azimuth angle and launch speed required for the electromagnetic launcher to launch the fire extinguishing projectile; Step S32: Adjust the cradle to the required pitch and azimuth angles for launch using the pitch and azimuth transmission mechanisms of the launch turret; Step S33: Launch fire extinguishing projectiles via an electromagnetic launcher.

7. The fire extinguishing method for long-distance firefighting according to claim 5, characterized in that, In step S2, the attitude adjustment method of the launch turret is as follows: Step Q1: Adjust the pitch movement of the launch turret through the pitch transmission mechanism; the pitch transmission mechanism controls the extension and retraction of the electric cylinder; thereby causing the rocker arm to deflect at the pitch angle relative to the turntable; Step Q2: Adjust the azimuth movement of the launch turret through the azimuth transmission mechanism; the azimuth transmission mechanism outputs torque, which in turn drives the turntable of the launch turret to rotate relative to the base; when the turntable rotates, it drives the rocker arm and the electromagnetic transmitter and detection device installed on the rocker arm to move synchronously. Step Q3: When the pitch and azimuth transmission mechanisms are in motion, the pitch and azimuth angles of the cradle are monitored in real time through the combination of pitch and azimuth angle measurements.

8. The fire extinguishing method for long-distance firefighting according to claim 1, characterized in that, In step S3, the process of the electromagnetic launcher launching the fire extinguishing bomb is as follows: Load the fire extinguishing bomb into the electromagnetic launcher; When the drive coil is energized, it generates electromagnetic induction with the transmitting armature, driving the transmitting armature to a linear displacement relative to the drive coil. When the armature of the launching device moves linearly, it propels the fire extinguishing projectile to move synchronously, providing the initial velocity for the projectile to exit the launch tube.

9. The fire extinguishing method for long-distance firefighting according to claim 1, characterized in that, A positioning cylinder is fixedly installed inside the drive coil; a positioning sensor is set on the positioning cylinder; the positioning sensor monitors whether the fire extinguishing bomb is loaded in place; when the fire extinguishing bomb is loaded in place, the launching armature contacts the positioning sensor on the positioning cylinder.

10. The fire extinguishing method for long-distance firefighting according to claim 1, characterized in that, The fire extinguishing process of the fire extinguishing bomb is as follows: Step M1: After the fuse is detonated, the black powder in the powder box is ignited. The burning black powder generates high pressure, which pushes the piston to slide along the cartridge tube. Step M2: The piston pressurizes the extinguishing agent in the cartridge, and the pressure of the extinguishing agent acts on the fairing, pushing the fairing to move outward, cutting off the connecting pin between the fairing and the cartridge body. After the fairing moves out of the cartridge, the spray hole is exposed. Step M3: The piston pushes the extinguishing agent in the cartridge to move outward. The extinguishing agent continues to move under the action of the piston and is sprayed out from the spray hole, thus realizing the spraying of the extinguishing agent.

Images