Forest fire extinguishing bomb mounted on helicopter

Abstract

The utility model discloses a forest fire extinguishing bomb mounted on a helicopter. The forest fire extinguishing bomb mounted on the helicopter comprises a storage device and a suspension device. The storage device comprises a shell and a center pipe, the center pipe is arranged in the shell, the shell is provided with a containing cavity, the containing cavity is used for containing a fire extinguishing agent, and the center pipe is used for containing a detonation assembly; the suspension device is detachably connected with the helicopter; wherein the storage device has an unfolding state and a storage state, when the storage device is in the storage state, the center pipe is stored in the shell, when the storage device is in the unfolding state, the center pipe is unfolded and located in the containing cavity, and when the storage device is in the unfolding state, the center pipe is located in the containing cavity. And the shell is arranged in the suspension device.

Description

Technical Field

[0001] The present application relates to the technical field of forest fire prevention and control, and more specifically, to a helicopter-mounted forest fire extinguishing bomb. Background Art

[0002] In forest fire prevention and control, traditional firefighting methods typically involve water spray, dry powder spray, wind-powered fire extinguishers, and long-range fire cannons. However, these methods have limitations in certain situations. For example, in mountainous areas with complex terrain, access to the fire scene is difficult. Although dry powder spray is compact, it is expensive to transport and store, and has a significant impact on the environment.

[0003] While drone-delivered fire extinguishing bombs can solve some firefighting challenges, existing fire extinguishing bombs still face challenges such as bulky size and high storage and transportation costs, limiting their effectiveness in large-scale applications.

[0004] Therefore, there is an urgent need to develop a technical solution that can reduce the storage and transportation costs of fire extinguishing bombs and effectively deal with forest fires. Utility Model Content

[0005] One purpose of this application is to provide a new technical solution for helicopter-mounted forest fire extinguishing bombs.

[0006] According to one aspect of the present application, a helicopter-mounted forest fire extinguishing bomb is provided. The helicopter-mounted forest fire extinguishing bomb includes a storage device and a suspension device. The storage device includes a shell and a central tube. The central tube is disposed within the shell. The shell has a receiving cavity for storing fire extinguishing agent, and the central tube is disposed within a detonation assembly. The suspension device is detachably connected to the helicopter. The storage device has an expanded state and a stored state. In the stored state, the central tube is stored within the shell. In the expanded state, the central tube is expanded and located within the receiving cavity. In the expanded state, the shell is disposed within the suspension device.

[0007] Optionally, the central tube has a first end and a second end that are relatively arranged, the first end is detachably connected to the shell, a connecting piece is provided in the shell, and the opposite ends of the connecting piece are respectively connected to the second end and the inner wall of the shell; wherein the connecting piece is used to limit the position of the second end in the accommodating cavity.

[0008] Optionally, one end of the central tube extends out of the shell, and the end extending out of the shell has an opening, and the opening is used to fill the detonation assembly into the central tube.

[0009] Optionally, the detonation assembly includes pyrotechnic powder, an ignition device, and a filler. The pyrotechnic powder, the ignition device, and the filler are all filled in the central tube, and the filler is filled between the pyrotechnic powder and the opening. The ignition device is buried in the pyrotechnic powder.

[0010] Optionally, the shell has a filling port, the filling port is communicated with the accommodating cavity, and a detachably connected fastening cover is provided on the filling port.

[0011] Optionally, the forest fire extinguishing bomb mounted on the helicopter also includes a detonating assembly, which includes a detonating controller and a signal adapter plate; the detonating controller is arranged on the shell, and the detonating controller is signal-connected to the detonating assembly; the signal adapter plate is arranged on the suspension device, the helicopter is signal-connected to the signal adapter plate, and the signal adapter plate is signal-connected to the detonating controller.

[0012] Optionally, the detonation controller includes a switch, a plug-in safety pin, a buzzer, a USB serial port, a digital tube and an indicator light. The switch and the plug-in safety pin are respectively connected to the signal adapter board signal, and the buzzer, the USB serial port, the digital tube and the indicator light are all connected to the switch and the plug-in safety pin signal.

[0013] Optionally, the suspension device includes a hook, the hook is connected to the helicopter, and a fixing seat is provided at one end of the hook away from the helicopter, and the signal adapter board is provided on the fixing seat.

[0014] Optionally, the suspension device includes a hanging net and a hanging rope. When the storage device is in the unfolded state, the shell is located in the hanging net, and the opposite ends of the hanging rope are respectively connected to the hanging net and the helicopter. The hanging net is detachably connected to the shell.

[0015] Optionally, the outer circumferential surface of the shell has a limiting portion along the suspension direction, the strap of the hanging net is set on the limiting portion, and a plurality of the limiting portions are arranged along the circumferential direction of the shell in the expanded state.

[0016] In an embodiment of the present application, the storage device has a stowed state and a deployed state. When the shell and the central tube are in the stowed state, the space occupied by the storage device when not in use can be effectively reduced, thereby reducing the storage cost and transportation cost of the storage device. When the storage device is in the deployed state, the fire extinguishing agent is stored in the accommodating cavity of the shell. The suspension device enables the helicopter to bring the shell with the fire extinguishing agent to the top of the fire that cannot be reached due to terrain, fire intensity, etc., and the central tube and the shell are blown open by the detonation component, so that the fire extinguishing agent in the shell can be thrown to the fire source and the surrounding area of ​​the fire source, thereby achieving effective fire extinguishing, greatly improving the timeliness and efficiency of fire extinguishing, and reducing the danger faced by rescue personnel.

[0017] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0019] Figure 1 Schematic diagram of the structure of a forest fire extinguishing bomb mounted on a helicopter in an embodiment of the present application;

[0020] Figure 2 This is a partially enlarged schematic diagram of a forest fire extinguishing bomb mounted on a helicopter in an embodiment of the present application;

[0021] Figure 3 yes Figure 2 An enlarged schematic diagram of part I;

[0022] Figure 4 yes Figure 2 An enlarged schematic diagram of part II;

[0023] Figure 5 yes Figure 4 Schematic cross-section of the AA section;

[0024] Figure 6 This is a schematic structural diagram of a signal adapter board in an embodiment of the present application;

[0025] Figure 7 It is a structural diagram of the detonation controller in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1-storage device; 11-housing; 111-accommodating chamber; 112-connecting member; 113-filling port; 114-fastening cover; 115-limiting portion; 12-center tube; 121-first end; 122-second end; 13-detonating assembly; 131-pyrotechnic charge; 132-ignition device; 133-filler;

[0028] 2-suspension device; 21-hook; 22-fixed seat; 23-hanging net; 24-hanging rope;

[0029] 3-Helicopter;

[0030] 4-Detonator assembly; 41-Detonator controller; 411-Detonator signal line; 412-Signal extension line; 413-Switch; 414-Plug and unplug safety pin; 415-Buzzer; 416-USB serial port; 417-Nixie tube; 418-Indicator light; 42-Signal adapter board; 421-Aircraft signal line. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] According to one embodiment of the present application, a helicopter-mounted forest fire extinguishing bomb is provided. The helicopter-mounted forest fire extinguishing bomb includes a storage device 1 and a suspension device 2. The storage device 1 includes a shell 11 and a central tube 12. The central tube 12 is disposed within the shell 11. The shell 11 has a receiving cavity 111 for storing fire extinguishing agent, and the central tube 12 is disposed within a detonating assembly 13. The suspension device 2 is detachably connected to a helicopter 3. The storage device 1 has an expanded state and a stored state. In the stored state, the central tube 12 is stored within the shell 11. In the expanded state, the central tube 12 is expanded and located within the receiving cavity 111. In the expanded state, the shell 11 is disposed within the suspension device 2.

[0037] like Figures 1 to 7 As shown, the storage device 1 includes a shell 11 and a central tube 12. The shell 11 and the central tube 12 are both made of polyvinyl chloride (PVC).

[0038] The housing 11 and the central tube 12 can be unfolded and retracted. In the unfolded state, the housing 11 and the central tube 12 can be used to store items. In the retracted state, the housing 11 and the central tube 12 can be folded and stored, thereby achieving a lightweight storage device and reducing the size when not in use, thereby reducing the space occupied by the storage device 1.

[0039] Of course, in the embodiment of the present application, the shell 11 and the central tube 12 are not limited to the above materials, and those skilled in the art can configure them according to actual needs. For example, the shell 11 and the central tube 12 can also be made of materials such as polyethylene terephthalate (PET) and polystyrene (PS).

[0040] By folding and storing the housing 11 and the central tube 12 when not in use, the volume of the storage device 1 can be reduced, thereby facilitating storage and transportation. The foldable storage device 1 can reduce the storage space required for the storage device 1, reduce storage and transportation costs, and increase the amount of storage capacity transported per trip while maintaining the storage capacity of the storage device 1 when in use.

[0041] When storage device 1 is in the stored state, housing 11 and central tube 12 are both folded, with central tube 12 disposed within housing 11 and connected to central tube 12 via a flange at the top. By folding housing 11 and central tube 12 when not in use, the space occupied by storage device 1 is reduced, effectively lowering storage costs and transportation costs while increasing the volume of each shipment.

[0042] When the storage device 1 is in the expanded state, both the shell 11 and the central tube 12 are in the expanded state. The top of the central tube 12 is fixed to the top of the shell 11 via a flange. The expanded shell 11 has a receiving chamber 111. By injecting fire extinguishing agent into the receiving chamber 111 and placing the detonating assembly 13 in the central tube 12, the storage device 1 can be suspended from the helicopter 3 via the suspension device 2. The helicopter 3 can then transport the storage device 1 to the vicinity of the fire scene for deployment. The detonating assembly 13 then explodes the central tube 12 and the shell 11, allowing the fire extinguishing agent in the shell 11 to be sprayed onto the fire scene for extinguishing the fire, effectively improving fire extinguishing efficiency and enhancing the safety of personnel at the fire scene.

[0043] In the embodiment of the present application, the storage device 1 has a stored state and a deployed state. When the shell 11 and the central tube 12 are in the stored state, the space occupied by the storage device 1 when not in use can be effectively reduced, thereby reducing the storage cost and transportation cost of the storage device 1; when the storage device 1 is in the deployed state, the fire extinguishing agent is stored in the accommodating cavity 111 of the shell 11. The suspension device 2 enables the helicopter 3 to bring the shell 11 with the fire extinguishing agent to the top of the fire that cannot be reached due to terrain, fire, etc., and the detonation component 13 is used to blow up the central tube 12 and the shell 11, so that the fire extinguishing agent in the shell 11 can be thrown to the fire source and the surrounding area of ​​the fire source, thereby achieving effective fire extinguishing, greatly improving the timeliness and efficiency of fire extinguishing, and reducing the danger faced by rescue personnel.

[0044] In one example, the central tube 12 has a first end 121 and a second end 122 that are relatively arranged, the first end 121 is detachably connected to the shell 11, a connecting member 112 is provided in the shell 11, and the opposite ends of the connecting member 112 are respectively connected to the second end 122 and the inner wall of the shell 11, wherein the connecting member 112 is used to limit the position of the second end 122 in the accommodating cavity 111.

[0045] like Figure 5 As shown, the first end 121 of the central tube 12 is the top of the tube body, and the second end 122 is the bottom of the tube body. The central tube 12 is arranged in the shell 11, and the top of the central tube 12 is connected to the top of the shell 11 through a flange.

[0046] The top of the central tube 12 is the first end 121. The top of the central tube 12 is connected to the top of the shell 11 via a flange, that is, the central tube 12 and the shell 11 are detachably connected via the flange. By setting the shell 11 and the central tube 12 to be detachably connected, it is convenient to perform operations such as inspection and replacement of the parts of the storage device 1. Compared with an integrated design, the detachable connection design of the storage device 1 not only reduces the difficulty of operation, but also effectively reduces the damage cost of the fire extinguishing bomb. For example, when there is a hole on the shell 11 or the central tube 12 that easily causes the fire extinguishing agent or pyrotechnic powder 131 to leak, it is only necessary to disassemble the central tube 12 from the shell 11 and replace it with a new shell 11 or central tube 12, without having to repair or discard the entire storage device 1.

[0047] When the storage device 1 is in the stored state, the shell 11 and the center tube 12 are both in a folded state; when the storage device 1 is in the expanded state, the shell 11 is expanded, and a accommodating chamber 111 is formed inside the shell 11 for storing the fire extinguishing agent. The center tube 12 is expanded in the accommodating chamber 111 of the shell 11. The first end 121 of the center tube 12 is fixed at the center of the top of the shell 11 through a flange, and the second end 122 of the center tube 12 is connected to the bottom of the shell 11 through a connecting piece 112. The position of the second end 122 of the center tube 12 in the shell 11 is limited by the connecting piece 112, thereby reducing the shaking amplitude of the second end 122 of the center tube 12 in the accommodating chamber 111 when in use, so that the shell 11 is broken more evenly when the detonating assembly 13 in the center tube 12 explodes, thereby effectively improving the spraying effect of the fire extinguishing agent in the shell 11.

[0048] Of course, in the embodiment of the present application, the connecting member 112 is not limited to the above materials, and those skilled in the art can configure it according to actual needs. For example, the connecting member 112 can also be a rigid member, through which the second end 122 of the central tube 12 is fixed to the center of the accommodating cavity 111.

[0049] When the connecting member 112 is made of a flexible and / or elastic material, the connecting member 112 can be folded and stored in the shell 11 due to the characteristics of the flexible material in the storage state, without affecting the storage of the shell 11 and the central tube 12.

[0050] When the connector 112 is made of a flexible and / or elastic material, the length of the connector 112 in the expanded state is less than the height of the housing 11 in the expanded state, the length of the central tube 12 in the expanded state is less than the height of the housing 11 in the expanded state, and the sum of the lengths of the connector 112 and the central tube 12 in the expanded state is greater than the height of the housing 1 in the expanded state. When the connector 112 is connected to the second end 122 of the central tube 12, the maximum diameter of the second end 122 of the central tube 12 during its swinging motion is less than the inner diameter of the housing 11. When the second end 122 of the center tube 12 shakes in the accommodating chamber 111, the connector 112 has no pulling force within the threshold range. When the shaking amplitude of the second end 122 exceeds the threshold range, the connector 112 forms a pulling force moving from the inner wall of the shell 11 toward the axis center, and the second end 122 of the center tube 12 is pulled by the connector 112, so that the second end 122 of the center tube 12 is pulled to the center of the accommodating chamber 111, so that the detonating assembly 13 in the center tube 12 can fully blast the shell 11 when it explodes, so that the fire extinguishing agent in the shell 11 is evenly sprayed.

[0051] By setting the sum of the lengths of the central tube 12 and the connecting piece 112 to be greater than the height of the shell 11 in the expanded state, it is also possible to prevent the connection strength between the connecting piece 112 and the central tube 12 from being too strong, resulting in the shell 11 being unable to fully expand in the expanded state due to the connection between the connecting piece 112 and the central tube 12, affecting the capacity of the accommodating chamber 111, and further resulting in a reduction in the fire extinguishing agent stored in the shell 11.

[0052] Of course, in the embodiment of the present application, the connecting member 112 is not limited to the above materials, and those skilled in the art can configure it according to actual needs. For example, it can also be an elastic material.

[0053] The connector 112 made of flexible and / or elastic material can be deformed. When the housing 11 and the central tube 12 are both in the retracted state, the connector 112 can be folded along with the storage device 1 to avoid affecting the volume of the storage device 1 in the retracted state.

[0054] In one example, one end 121 of the central tube 12 extends out of the shell 11 , and the end 121 extending out of the shell has an opening, and the opening is used to load the detonating assembly 13 into the central tube 12 .

[0055] like Figure 4 and Figure 5 As shown, the central tube 12 has a first end 121 and a second end 122. The first end 121 is the top of the central tube 12, and the second end 122 is the bottom of the central tube 12.

[0056] The first end 121 of the central tube 12 extends out of the top of the housing 11, and an opening is provided at the top of the central tube 12. The detonating assembly 13 is placed into the central tube 12 through the opening, and the opening is sealed to prevent the detonating assembly 13 from falling out of the opening.

[0057] The shell 11 extends out through the top of the central tube 12, and an opening is provided at the top of the central tube 12, which not only facilitates the placement of the detonating assembly 13 in the shell 11, but also facilitates the direct connection of the helicopter 3 with the detonating assembly 13 through the central tube 12, avoiding the need for disassembly and / or passing through the shell 11 and then connecting with the detonating assembly 13 in the central tube 12, thereby simplifying the operating steps and reducing the difficulty of operation.

[0058] In one example, the detonation assembly 13 includes a pyrotechnic powder 131, an ignition device 132, and a filler 133. The pyrotechnic powder 131, the ignition device 132, and the filler 133 are all filled in the central tube 12, and the filler 133 is filled between the pyrotechnic powder 131 and the opening, and the ignition device 132 is buried in the pyrotechnic powder 131.

[0059] like Figure 5 As shown, the detonation assembly 13 includes a pyrotechnic charge 131 , an ignition device 132 and a filler 133 .

[0060] The center tube 12 is filled with pyrotechnic powder 131, and an ignition device 132 is embedded in the pyrotechnic powder 131. The center tube 12 is disposed within the housing 11, and the ignition device 132 ignites the pyrotechnic powder 131, causing the center tube 12 and the housing 11 to explode, thereby spraying the fire extinguishing agent in the housing 11 to extinguish the fire.

[0061] like Figure 5 As shown, the pyrotechnic powder 131 is filled at the bottom of the central tube 12, that is, the pyrotechnic powder 131 is located in the accommodating cavity 111 and is located at the center of the shell 11. By arranging the pyrotechnic powder 131 at the center of the shell 11, the shell 11 can be exploded more evenly when the pyrotechnic powder 131 is ignited by the ignition device 132, thereby ensuring a more uniform spraying of the fire extinguishing agent.

[0062] The filler 133 may be stone powder, sand, soil, etc. Filler 133 is placed in the upper portion of the central tube 12, i.e., between the pyrotechnic powder 131 and the opening. The filler 133 not only prevents leakage of the pyrotechnic powder 131 and prevents moisture, but also reduces the upward impact of the explosion when the pyrotechnic powder 131 is ignited and explodes. This reduces the impact of the explosion on equipment such as the helicopter 3 and directs the explosion downward, enhancing the downward impact of the fire extinguishing agent, thereby effectively extinguishing the fire.

[0063] In one example, the housing 11 has a filling port 113 , which is in communication with the accommodating chamber 111 . A detachably connected fastening cover 114 is provided on the filling port 113 .

[0064] like Figure 5 As shown, a filling port 113 is provided on the top of the housing 11, which is connected to the accommodating chamber 111. Fire extinguishing agent can be injected into the accommodating chamber 111 through the filling port 113. The fire extinguishing agent can be any one of water-based fire extinguishing agent, gel fire extinguishing agent, foam fire extinguishing agent, etc.

[0065] In the embodiment of the present application, when the forest fire extinguishing bomb needs to be used, the concentrated fire extinguishing agent is first added to the accommodating chamber 111 of the inner shell 11 through the filling port 113, and then water is directly poured into the accommodating chamber 111 through the filling port 113 by the fire brigade's tanker at the fire scene to form a fire suppressant. The filling port 113 is sealed to prevent the fire suppressant from leaking, and the fire extinguishing bomb filled with the fire suppressant is lifted by the helicopter 3 and transported to the fire scene for use.

[0066] In one example, the forest fire extinguishing bomb mounted on the helicopter also includes a detonating assembly 4, which includes a detonating controller 41 and a signal adapter board 42; the detonating controller 41 is arranged on the shell 11, and the detonating controller 41 is signal-connected to the detonating assembly 13; the signal adapter board 42 is arranged on the suspension device 2, the helicopter 3 is signal-connected to the signal adapter board 42, and the signal adapter board 42 is signal-connected to the detonating controller 41.

[0067] like Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, the detonating assembly 4 includes a detonating controller 41 and a signal adapter board 42. The detonating controller 41 is connected to the ignition device 132. The detonating controller 41 activates the ignition device 132, causing the detonating assembly 13 to explode, thereby separating the central tube 12 from the shell 11 and spraying the fire extinguishing agent in the shell 11.

[0068] The signal adapter board 42 is connected to the control system of the helicopter 3 and the detonation controller 41 respectively, so that the control system of the helicopter 3 is connected to the detonation controller 41, so as to control the detonation assembly 13 of the fire extinguishing bomb.

[0069] like Figures 1 to 7As shown, the detonation controller 41 is arranged on the shell 11, and the signal adapter board 42 is arranged on the suspension device 2. When the forest fire extinguishing bomb is in use, the control system of the helicopter 3 is connected to the signal adapter board 42 through the aircraft signal line 421, the detonation controller 41 is connected to the ignition device 132 through the detonation signal line 411, and the detonation controller 41 is connected to the signal adapter board 42 through the signal extension line 412.

[0070] When the helicopter 3 arrives at the designated location with the forest fire extinguishing bomb filled with fire extinguishing agent, the helicopter 3 control system transmits the delivery signal to the detonation controller 41 through the signal adapter board 42. The detonation controller 41 is connected to the ignition device 132. The ignition device 132 starts to ignite the pyrotechnic powder 131, causing the central tube 12 and the shell 11 to explode, thereby causing the fire extinguishing agent to be sprayed to the fire source and / or near the fire source to extinguish the fire.

[0071] In one example, the detonation controller 41 includes a switch 413, a plug-in safety pin 414, a buzzer 415, a USB serial port 416, a digital tube 417 and an indicator light 418. The switch 413 is respectively connected to the signal adapter board 42 for signals, and the plug-in safety pin 414, the USB serial port 416, the buzzer 415, the digital tube 417 and the indicator light 418 are all connected to the switch 413 and the plug-in safety pin 414 for signals.

[0072] like Figure 7 As shown, the detonation controller 41 includes a switch 413, a plug-in safety pin 414, a buzzer 415, a digital tube 417, and an indicator light 418. Switch 413 is a miniature toggle switch. By configuring both the micro-toggle switch 413 and the plug-in safety pin 414, the detonation process is initiated only when both are in the on state, preventing accidental detonation due to external factors. The buzzer 415, digital tube 417, and indicator light 418 provide a visual display of the operating status of the forest fire extinguishing bomb. The bomb is only operational when both the plug-in safety pin and the micro-toggle switch 413 are in the on state.

[0073] In this embodiment, after micro-switches 413 are connected, the circuit board chip of detonation controller 41 is powered on and a self-test is initiated to ensure that the USB serial port 416 is securely connected. A digital tube 417 displays the operating status of the detonation control device. The altitude controller of helicopter 3 sends a timer to detonation controller 41. Before dropping the bomb, the altitude controller of helicopter 3 sends a charging command to turn on switch 413 to charge the ignition capacitor and an activation command to execute the activation program, activating the fire extinguisher. When USB serial port 416 is disconnected, the chip of detonation controller 41 begins counting. When the timer expires, the program turns on switch 413 to discharge the ignition device 132 and detonate the pyrotechnic charge 131.

[0074] This throwable fire bomb features easy operation and rapid response. Users can use a helicopter to drop the bomb directly at the source of a fire, significantly improving the timeliness and efficiency of firefighting and effectively curbing the spread of a fire in its early stages. For example, in inaccessible fire areas or emergency situations, this eliminates the need for personnel to approach the fire source, reducing the risk to rescuers.

[0075] The fire extinguishing agent in the fire bomb can evenly and quickly cover the fire source, achieving efficient fire extinguishing. Compared with traditional fire extinguishing methods, it can control and extinguish fires in a shorter time, reducing the damage caused by fire.

[0076] The fire extinguishing area is maximized by:

[0077] First, a timing function controls the detonation of the fire extinguishing bomb at an appropriate distance from the ground. The higher the detonation altitude, the greater the coverage area and the lower the concentration of the fire extinguishing agent applied to the fire scene. The concentration of the fire extinguishing agent within the coverage area after detonation is directly proportional to the fire extinguishing effectiveness; the higher the concentration within the coverage area, the better the fire extinguishing effect. Program control within the detonation controller 41 ensures that the fire extinguishing bomb detonates at the optimal fire extinguishing altitude, maximizing the coverage area while ensuring fire extinguishing effectiveness.

[0078] The pyrotechnic powder 131 is stored in the center of the shell 11 and is sealed into the central tube 12 by the filler 133. After the fire extinguishing agent is loaded into the accommodating chamber 111 of the forest fire extinguishing bomb, it can effectively prevent the second end 122 of the central tube 12 from deflecting or bursting in the accommodating chamber 111 after the shell 11 is subjected to impact force, resulting in uneven explosion of the shell 11 and uneven dispersion of the fire extinguishing agent.

[0079] If the height detected by the height measurement system does not meet the requirements and the fire extinguishing bomb does not ignite in the air until it lands on the ground, the detonation controller 41 will start the emergency ignition mode to achieve landing self-destruction after detecting the impact force.

[0080] This projectile-type fire extinguishing bomb boasts excellent versatility and adaptability. It can be applied to a variety of scenarios, such as forest fires and grassland fires, providing a reliable solution for firefighting in complex environments. It can effectively and quickly address fires in their early stages, even in situations where complex terrain and inaccessible roads pose challenges.

[0081] In the embodiment of the present application, the fire extinguishing bomb is highly safe, ensuring that no accidental harm will be caused to the user and the surrounding environment during use, while also avoiding the risks of accidental leakage or improper use of the fire extinguishing agent. The methods for ensuring safe use are mainly achieved by the following methods:

[0082] By providing a buzzer 415, when the USB serial port 416 and the plug-in safety pin 414 are removed and the micro-slide switch 413 is turned on, the buzzer 415 starts to sound, alerting on-site personnel that the fire bomb is in operation. The frequency of the buzzer 415 is proportional to the detonation countdown. The higher the frequency of the buzzer 415, the less time remains in the countdown, and the closer the time to detonation.

[0083] By setting the safety distance delay protection, when the distance is less than the safety distance, in order to protect the helicopter 3 from detonation, the height of the helicopter 3 must be greater than the safety height.

[0084] When starting the machine, check whether the USB plug line connection is firm. If the line connection is abnormal, it will display an error and the detonation command will not be executed.

[0085] By setting the ignition capacitor charging command and activation command, detonation can only be carried out after the charging command and activation command are issued.

[0086] In the embodiment of the present application, the storage device 1 of the fire extinguishing bomb adopts a foldable and lightweight design, which has low cost, simple manufacturing process, relatively economical material cost, and small space occupation. It can effectively reduce storage and transportation costs, facilitate large-scale production and promotion and application, and help to improve the overall fire safety level.

[0087] In addition, the storage device 1 of the present application is made of PVC material, which makes the forest fire extinguishing bomb of the present application have good storage and stability. When not in use, it can be stored for a long time without affecting its performance, and is ready to respond to sudden fires at any time, providing a strong guarantee for fire prevention and emergency response.

[0088] In actual use, first turn on the micro toggle switch 413, and then use the helicopter 3 to drop the forest fire extinguishing bomb over the fire area. When dropping, the USB serial port 416 and the plug-in safety pin 414 are separated from the helicopter 3, and the controller detects that the line is disconnected. The control chip starts counting, and the countdown ends to detonate the pyrotechnic charge 131. At this time, the fire extinguishing bomb is falling to a preset height above the ground. After the explosion, the fire extinguishing agent covers the fire point to extinguish the fire.

[0089] In one example, the suspension device 2 includes a hook 21 , which is connected to the helicopter 3 . A fixing seat 22 is provided at one end of the hook 21 away from the helicopter 3 , and the signal adapter board 42 is provided on the fixing seat 22 .

[0090] like Figures 1 to 5As shown, a decoupling device is installed at the bottom of helicopter 3. The suspension device 2 includes a hook 21. When the forest fire extinguishing bomb is in use, the storage device 1 is placed inside the suspension device 2 and connected to the decoupling device of helicopter 3 via the hook 21 of the suspension device 2, so that the forest fire extinguishing bomb can be transported by helicopter 3 to a designated location for fire extinguishing.

[0091] The hook 21 is disposed on the end of the suspension device 2 away from the storage device 1, and a fixing seat 22 is disposed on the side of the suspension device 2 near the hook 21. A signal adapter plate 42 is disposed on the fixing seat 22. The signal adapter plate 42 is disposed on the fixing seat 22 to enhance its stability and prevent significant positional changes during the transport of the forest fire extinguishing bomb, which could affect the stability of the connection between the signal adapter plate 42 and the helicopter 3 control system and the detonation controller 41.

[0092] Of course, in the embodiment of the present application, the suspension device 2 is not limited to the above structure, and those skilled in the art can configure it according to actual needs. For example, the fixing seat 22 can also be arranged on a side of the suspension device 2 close to the detonation controller 41.

[0093] In one example, the suspension device 2 includes a hanging net 23 and a hanging rope 24. When the storage device 1 is unfolded, the shell 11 is located in the hanging net 23, and the opposite ends of the hanging rope 24 are respectively connected to the hanging net 23 and the helicopter 3. The hanging net 23 is detachably connected to the shell 11.

[0094] like Figures 1 to 5 As shown, in the unfolded state, the shell 11 is in a truncated cone shape. By placing the truncated cone-shaped shell 11 in the hanging net 23, it is not only convenient to transport the shell 11 through the hanging net 23, but also can improve the strength of the shell 11, and prevent the shell 11 from being deformed or broken due to the excessive weight of the fire extinguishing agent stored in the shell 11.

[0095] One end of the lifting rope 24 is provided with a hook 21, and the end away from the hook 21 is connected to the lifting net 23. The unhooking device of the helicopter 3 is connected to the hook 21, so that the lifting net 23 is lifted by the lifting rope 24, so that the shell 11 filled with fire extinguishing agent is transported by the suspension device 2.

[0096] Of course, the suspension device 2 in the embodiment of the present application is not limited to the above structure, and those skilled in the art can configure it according to actual needs. For example, the suspension net 23 and the suspension rope 24 are an integrated structure.

[0097] In one example, the outer circumferential surface of the shell 11 has a limiting portion 115 along the suspension direction, the strap of the hanging net 23 is set on the limiting portion 115, and multiple limiting portions 115 are arranged along the circumferential direction of the shell 11 in the expanded state.

[0098] like Figures 1 to 5 As shown, the shell 11 is in a truncated cone shape in the unfolded state. A plurality of limiting portions 115 are evenly distributed along the circumference of the shell 11 , and each limiting portion 115 is opened along the suspension direction so that the strap of the hanging net 23 can pass through the limiting portion 115 .

[0099] By setting a limit portion 115 to limit the position of the strap outside the shell 11, when the fire extinguishing bomb is placed in the process of being transported, the position of the shell 11 and the strap may be offset or misaligned due to shaking or other reasons, causing the shell 11 to fall through the gap between adjacent straps.

[0100] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A helicopter-mounted forest fire extinguishing bomb, characterized in that: include: A storage device (1) comprises a shell (11) and a central tube (12), wherein the central tube (12) is arranged in the shell (11), the shell (11) has a receiving cavity (111), the receiving cavity (111) is used to store a fire extinguishing agent, and the central tube (12) is used to place a detonating assembly (13); A suspension device (2), wherein the suspension device (2) is detachably connected to the helicopter (3); The storage device (1) has an expanded state and a stored state. When the storage device (1) is in the stored state, the central tube (12) is stored in the shell (11). When the storage device (1) is in the expanded state, the central tube (12) is expanded and located in the accommodating cavity (111). When the storage device (1) is in the expanded state, the shell (11) is arranged in the suspension device (2).

2. The helicopter-mounted forest fire extinguishing bomb according to claim 1, characterized in that: The central tube (12) has a first end (121) and a second end (122) that are arranged opposite to each other, the first end (121) is detachably connected to the shell (11), a connecting piece (112) is provided in the shell (11), and opposite ends of the connecting piece (112) are respectively connected to the second end (122) and the inner wall of the shell (11); Wherein, the connecting member (112) is used to define the position of the second end (122) in the accommodating cavity (111).

3. The helicopter-mounted forest fire extinguishing bomb according to claim 1, characterized in that: One end of the central tube (12) extends out of the shell (11), and the end extending out of the shell (11) has an opening, and the opening is used to fill the detonation assembly (13) into the central tube (12).

4. The helicopter-mounted forest fire extinguishing bomb according to claim 3, characterized in that: The detonation assembly (13) comprises pyrotechnic powder (131), an ignition device (132), and a filler (133). The pyrotechnic powder (131), the ignition device (132), and the filler (133) are all filled in the central tube (12), and the filler (133) is filled between the pyrotechnic powder (131) and the opening. The ignition device (132) is buried in the pyrotechnic powder (131).

5. The helicopter-mounted forest fire extinguishing bomb according to claim 1, characterized in that: The housing (11) has a filling port (113) which is in communication with the accommodating chamber (111). A detachably connected fastening cover (114) is provided on the filling port (113).

6. The helicopter-mounted forest fire extinguishing bomb according to claim 1, characterized in that: It also includes an initiating assembly (4), wherein the initiating assembly (4) includes: An initiation controller (41) is provided on the housing (11), and the initiation controller (41) is signal-connected to the initiation assembly (13); A signal adapter plate (42) is provided on the suspension device (2); the helicopter (3) is signal-connected to the signal adapter plate (42); and the signal adapter plate (42) is signal-connected to the detonation controller (41).

7. The helicopter-mounted forest fire extinguishing bomb according to claim 6, characterized in that: The detonation controller (41) comprises a switch (413), a plug-in safety pin (414), a buzzer (415), a USB serial port (416), a digital tube (417) and an indicator light (418); the switch (413) and the plug-in safety pin (414) are respectively connected to the signal adapter board (42) for signal transmission; the buzzer (415), the USB serial port (416), the digital tube (417) and the indicator light (418) are all connected to the switch (413) and the plug-in safety pin (414) for signal transmission.

8. The helicopter-mounted forest fire extinguishing bomb according to claim 6, characterized in that: The suspension device (2) includes a hook (21), the hook (21) is connected to the helicopter (3), a fixing seat (22) is provided at one end of the hook (21) away from the helicopter (3), and the signal adapter plate (42) is provided on the fixing seat (22).

9. The helicopter-mounted forest fire extinguishing bomb according to claim 1, characterized in that: The suspension device (2) comprises a hanging net (23) and a hanging rope (24); when the storage device (1) is in an unfolded state, the housing (11) is located in the hanging net (23); opposite ends of the hanging rope (24) are respectively connected to the hanging net (23) and the helicopter (3); and the hanging net (23) is detachably connected to the housing (11).

10. The helicopter-mounted forest fire extinguishing bomb according to claim 9, characterized in that: The outer circumferential surface of the shell (11) has a limiting portion (115) along the suspension direction, the strap of the hanging net (23) is arranged on the limiting portion (115), and a plurality of the limiting portions (115) are arranged along the circumferential direction of the shell (11) in the expanded state.

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