Airborne fire rescue bomb

Abstract

The invention discloses an airborne fire rescue bomb, which relates to the field of aviation emergency rescue. It includes: a shell, a pylon, a control panel, a plug-in fuse and a central blasting charge column; the control panel is electrically connected to the plug-in fuse, and is used to send a trigger signal to a time delay fuse through the plug-in fuse, and the time delay fuse is arranged in the central blasting charge column; the control panel and the plug-in fuse are both arranged on the shell, and a movable insulating sheet is arranged in the plug-in fuse, and one end of the movable insulating sheet is connected to the aircraft, and the insulating sheet is used to control the working state of the plug-in fuse; the central blasting charge column is arranged on the central axis of the shell, and the fire extinguishing agent is uniformly filled around the central blasting charge column in the shell; the pylon is fixed on the shell, and the rescue bomb is arranged on the aircraft through the pylon, and the pylon and the plug-in fuse are located on the same axis.

Description

Technical Field

[0001] The present invention relates to the field of aviation emergency rescue, and more specifically to an airborne firefighting and rescue bomb. Background Art

[0002] Aerial firefighting is a means of forest fire prevention that uses aircraft to prevent and extinguish forest fires. It is an important component and measure of forest fire prevention, and is also recognized by the world as an advanced means of fire prevention and fighting. Especially in remote mountainous areas with high mountains, steep slopes and inconvenient transportation, aircraft fire monitoring and emergency rescue cannot be completely replaced by other means. Due to the large forest area, ground firefighting is subject to certain restrictions. Therefore, aerial firefighting has become a highly efficient and fast firefighting method commonly used in the world. my country adopts a combination of various means such as aircraft fleet aerial firefighting, buckets, slings, and rope (slide) descent firefighting. However, since aerial firefighting requires a large number of ground crew, flight crew, pilots and other personnel and equipment, the capital investment is huge and cannot fully meet actual needs.

[0003] With the rapid development of the unmanned aerial vehicle industry, the use of unmanned aerial vehicles to carry out precise extinguishing of forest fires has become a feasible firefighting measure. In addition, due to the continuous casualties of forest firefighters trapped by sudden fires in recent years, aviation firefighting emergency rescue equipment can open up life safety channels for trapped firefighters at any time to ensure the safety of firefighters.

[0004] The existing airborne forest fire extinguishing bomb is an expansion-type delayed forest fire extinguishing bomb, which is mounted on an aircraft and dropped vertically. The forest fire extinguishing bomb is an integral assembly structure. The rocket engine inside the bomb body provides power for the bomb body explosion, and the relay delays the explosion. When the forest fire extinguishing bomb is used, the bomb body is expanded by the power of the rocket engine, and the fire extinguishing agent passively flows out of the ruptured bomb body and flies freely due to gravity acceleration to extinguish the crown fire in the forest fire. Since forest fire bombs need to be mounted on aircraft, when the aircraft releases forest fire bombs, it is necessary to control the flight altitude of the aircraft according to the detonation time of the forest fire bombs and the current distance from the tree canopy to ensure that the forest fire bombs can be accurately detonated when they are 10-20 meters away from the tree canopy, so as to ensure that the forest fire bombs have a good dispersion effect; furthermore, when the forest fire bomb is in use, the bomb body is broken by the power of the internal transversely installed rocket engine, so as to realize the free diffusion of the fire extinguishing agent in turn, while the forest fire bomb is that after the bomb body is expanded, the fire extinguishing agent falls freely and disperses, which is passive diffusion. The dispersion effect is greatly affected by airflow, and the fire extinguishing agent may disperse faster, resulting in a lower unit fire extinguishing concentration, or it may reach the tree canopy position without dispersing.

[0005] In summary, the existing forest fire extinguishing bombs have the problem that the detonation time is fixed and the fire extinguishing agent is freely dispersed, so the detonation position needs to be controlled by the flight altitude of the aircraft and the unit concentration of the fire extinguishing agent is uneven. Summary of the invention

[0006] The embodiment of the present invention provides an airborne fire rescue bomb, which is used to solve the problem that the existing forest fire extinguishing bomb has a fixed detonation time and the fire extinguishing agent is freely diffused, so the detonation position needs to be controlled by the flight altitude of the aircraft and the unit concentration of the fire extinguishing agent is uneven.

[0007] The embodiment of the present invention provides an airborne fire rescue bomb, comprising: a shell, a rack, a control panel, a plug-in safety and a central blasting charge column;

[0008] The control panel is electrically connected to the plug-in fuse, and is used to send a trigger signal to the delay fuse through the plug-in fuse, and the delay fuse is arranged in the central blasting charge column; wherein the trigger signal carries a delay time, and the delay time is determined according to the vertical distance between the aircraft and the target fire scene;

[0009] The plug-in fuse is arranged on the housing, a movable insulating sheet is arranged inside the plug-in fuse, one end of the movable insulating sheet is connected to the aircraft, and the movable insulating sheet controls the working state of the plug-in fuse;

[0010] The central blasting charge is arranged on the central axis of the shell, and the shell is filled with fire extinguishing agent uniformly around the central blasting charge;

[0011] The pylon is fixed on the shell, and the rescue bomb is set on the aircraft through the pylon, and the pylon and the plug-in safety are located on the same axis.

[0012] Preferably, the working state of the plug-in fuse includes: a state of establishing electrical connection with the control board and a state of disconnecting electrical connection with the control board;

[0013] When the movable insulating sheet is pulled out from the plug-in fuse, the plug-in fuse establishes an electrical connection with the control board;

[0014] When the movable insulating sheet is disposed in the plug-in fuse, the plug-in fuse is electrically disconnected from the control board.

[0015] Preferably, the target fire scene is the height of tree crowns in the fire scene;

[0016] The delay time is the time it takes for the rescue bomb to freely fall from the aircraft to reach the top of the tree canopy and be 10 to 20 meters away from the tree canopy.

[0017] Preferably, it also includes a pendant;

[0018] The two hangers are respectively arranged on the outside of the shell and fixed together with the two hangers installed on the inside of the shell.

[0019] Preferably, it also includes a front end cover, a docking ring and an isolation plate;

[0020] The two docking rings are respectively embedded in the two ends of the shell, the front end cover and the docking ring are screwed together and arranged at the front end of the shell, and a circular space is arranged inside the front end cover;

[0021] The isolation plate is screwed onto the internal docking ring embedded in the rear end of the housing through threads;

[0022] The isolation plate is respectively provided with two fire extinguishing agent filling holes and a raised hollow cylinder, and the raised hollow cylinder is located at the center of the isolation plate.

[0023] Preferably, it also includes a blasting charge installation cover and a blasting charge installation tube;

[0024] One end of the hollow cylinder facing the inside of the shell is fixedly connected to the blasting charge installation tube, and the other end of the hollow cylinder is screwed to the blasting charge installation cover;

[0025] The central blasting charge column is arranged inside the blasting charge installation tube. The front end of the blasting charge installation tube extends into the circular space of the front end cover, and there is a gap between the front end cover and the central blasting charge column.

[0026] Preferably, the blasting charge installation tube and the central blasting charge column are both cylindrical;

[0027] The cross sections of the central blasting charge column, the blasting charge installation tube and the shell are concentric circles.

[0028] Preferably, it also includes a rear end cover and a power box;

[0029] The rear end cover is screwed onto the internal docking ring embedded in the rear end of the housing through threads, and the distance between the isolation plate and the front end cover is smaller than the distance between the rear end cover and the front end cover;

[0030] The rear end cover is provided with a mounting plate, the power box is fixed on one side of the mounting plate, the control board is fixed on the other side of the mounting plate, and the power box is electrically connected to the control board;

[0031] The two plug-in fuses are arranged on the rear end cover, and the two plug-in fuses and the two hangers are located on the same axis.

[0032] Preferably, it also includes a tail wing base, a tail wing mounting frame and a tail wing;

[0033] The tail wing base is screwed to the rear end cover via threads;

[0034] The two tail wing mounting frames are sleeved on the tail wing base, and the directions and angles of the tail wing slots provided on the tail wing mounting frames are consistent;

[0035] The eight tail wings are all arranged in tail wing slots on the tail wing mounting frame.

[0036] Preferably, the shell is made of a degradable material.

[0037] An embodiment of the present invention provides an airborne fire rescue bomb, comprising: a shell, a pylon, a control panel, a plug-in safety and a central blasting charge; the control panel is electrically connected to the plug-in safety, and is used to send a trigger signal to a delay fuse through the plug-in safety, and the delay fuse is arranged in the central blasting charge; wherein the trigger signal carries a delay time, and the delay time is determined according to the vertical distance between the aircraft and the target fire scene; the plug-in safety is arranged on the shell, and a movable insulating sheet is arranged in the plug-in safety, one end of the movable insulating sheet is connected to the aircraft, and the movable insulating sheet controls the working state of the plug-in safety; the central blasting charge is arranged on the central axis of the shell, and the fire extinguishing agent is evenly filled around the central blasting charge in the shell; the pylon is fixed to the shell, and the rescue bomb is arranged on the aircraft through the pylon, and the pylon and the plug-in safety are located on the same axis. The plug-in fuse and the hanger set on the rescue bomb are both connected to the aircraft. When the rescue bomb is separated from the aircraft, the movable insulating sheet set in the plug-in fuse is separated from the plug-in fuse, so that the plug-in fuse can start to send a trigger signal to the delay fuse electrically connected to the plug-in fuse. Furthermore, the trigger signal carries a delay time, and the delay time is calculated based on the vertical distance between the aircraft and the target fire scene. Therefore, when the delay fuse set in the central blasting column receives the trigger signal and starts counting until the delay fuse timing ends, the rescue bomb will detonate the central blasting column above the target fire scene. The blasting agent instantly generates an explosive force to impact the fire extinguishing agent to scatter around and cover downward, forming a circular effective fire extinguishing area, so that the fire extinguishing agent diffused above the target fire scene can reach a set concentration, thereby improving the fire extinguishing effect. The rescue bomb solves the problem that the detonation time of the existing fire extinguishing bomb needs to be controlled by the flight altitude of the aircraft and the free diffusion of the fire extinguishing agent leads to uneven unit concentration of the fire extinguishing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic top view of an airborne firefighting and rescue bomb provided by an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of the structure of an airborne firefighting and rescue bomb provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Figure 1 A schematic top view of an airborne fire rescue bomb provided by an embodiment of the present invention, Figure 2 The following is a schematic diagram of the structure of an airborne firefighting and rescue bomb provided by an embodiment of the present invention. Figure 1 and Figure 2 The airborne firefighting and rescue bomb provided by an embodiment of the present invention is introduced in detail.

[0043] like Figure 1 As shown, the rescue bomb mainly includes three parts: a load compartment 1, an equipment compartment 2 and a blaster 3. Figure 2 As shown, the load compartment 1 mainly includes a front cover 101, a docking ring 102, a shell 103, a bracket 114 and a pendant 115; the equipment compartment 2 includes an isolation plate 104, a power box 105, a rear cover 106, two tail wing mounting brackets 107, eight tail wings 108, a tail wing base 109, a control panel 110, a plug-in fuse 111 and a plug cover 112; the blaster 3 includes a blasting charge installation cover 113, a blasting charge installation tube 116 and a central blasting charge column 117. Among them, the load compartment 1 is the front half of the rescue bomb, which mainly provides a large enough loading space for the fire extinguishing agent; the equipment compartment 2 is the back half of the rescue bomb; the blaster 3 provides the fire extinguishing agent with blasting dispersion kinetic energy, and is located in the load compartment.

[0044] like Figure 2As shown, the control panel 110 and the plug-in fuse 111 are electrically connected. The main function of the plug-in fuse 111 is to send a trigger signal to the delay fuse. Specifically, the trigger signal carries a delay time. In the embodiment of the present invention, the delay time is determined according to the vertical distance between the aircraft and the target fire scene. For example, when the target fire scene is a forest, the target fire scene is the tree crown in the forest. At this time, the delay time is the time when the rescue bomb freely falls from the aircraft to the top of the tree crown and is 10 to 20 meters away from the tree crown; when the target fire scene is an urban building, the target fire scene is the roof of the building. At this time, the delay time is the time when the rescue bomb freely falls from the aircraft to the top of the roof and is 10 to 20 meters away from the roof. Further, the delay fuse is arranged in the central blasting charge 117.

[0045] In the embodiment of the present invention, the plug-in fuse has two working states, one state is a state of establishing electrical connection with the control board; the other state is a state of disconnecting electrical connection with the control board. In order to be able to control the working state of the plug-in fuse, preferably, a movable insulating sheet is set in the plug-in fuse 111, and the movable insulating sheet is set in the plug-in fuse 111 through a spring sheet. When the movable insulating sheet is set in the plug-in fuse 111, the plug-in fuse and the control board are disconnected from the electrical connection relationship, and the plug-in fuse 111 cannot send a trigger signal to the delay fuse set in the central blasting charge 117; and when the movable insulating sheet is taken out of the plug-in fuse 111, the plug-in fuse and the control board are established. Then, the plug-in fuse 111 can send a trigger signal to the delay fuse set in the central blasting charge 117. Further, when the delay fuse in the central blasting charge 117 receives the trigger signal, the timing starts, and when the delay fuse timing ends, the fuse detonates the central blasting charge 117. It should be noted that the timing time of the delay fuze is determined according to the delay time carried by the trigger signal. For example, if the delay time is 9 seconds, the timing time of the delay fuze is 9 seconds; if the delay time is 11 seconds, the timing time of the delay fuze is also 11 seconds. In the embodiment of the present invention, the timing time of the extension fuze is not specifically limited.

[0046] In practical applications, in order to allow the fire extinguishing agent in the rescue bomb to scatter all around and cover downwards to form a circular effective fire extinguishing area, preferably, the central blasting charge 117 is arranged on the central axis in the shell 103, and the fire extinguishing agent is evenly filled around the central blasting charge 117 in the shell 103, that is, when the central blasting charge 117 is detonated by the time delay fuse arranged in the central blasting charge 117, the central blasting charge 117 in the center of the shell can detonate the fire extinguishing agent distributed around the central blasting charge 117, providing power for the fire extinguishing agent, thereby avoiding the problem that the existing fire extinguishing agent is free-falling and the dispersion effect is greatly affected by the airflow, resulting in uneven concentration of the unit fire extinguishing agent.

[0047] In the embodiment of the present invention, the movable insulating sheet set in the plug-in fuse 111 is removed from the plug-in fuse 111, thereby achieving an electrical connection between the plug-in fuse 111 and the control panel, that is, achieving the control of the extension fuse by the controller. In actual application, the movable insulating sheet will be removed from the plug-in fuse 111 only when the rescue bomb falls from the aircraft, that is, when the rescue bomb falls from the aircraft, the controller establishes an electrical connection relationship with the plug-in fuse, and further establishes an electrical connection with the delay fuse, so that a trigger signal can be sent to the delay fuse. Since the trigger signal carries a delay time, the delay fuse can determine the timing time according to the delay time, thereby controlling the blasting time of the central blasting column 117 located at the center of the rescue bomb shell, that is, controlling the blasting position of the rescue bomb above the target fire scene, and then achieving the control of the dispersion of the fire extinguishing agent.

[0048] It should be noted that in the embodiment of the present invention, due to the laser rangefinder installed on the aircraft, the vertical distance between the aircraft and the target fire scene can be measured by the laser rangefinder. Further combined with the gravity acceleration of the rescue bomb, the negative acceleration caused by the air resistance and other data, the rescue bomb falling speed can be calculated by using differential equations, the aerodynamic characteristics of the rescue bomb body, and a large amount of test data statistics. The time for the rescue bomb to fall to the target fire scene height is calculated according to the time and speed formula (time = distance / speed), which is the delay time from the rescue bomb being released to the time delay fuse triggering the blaster 3. The above calculation program is automatically processed by the software program and embedded in the carrier computer. In actual application, the system automatically sets the time to the delay fuse, and the height of the aircraft is adjusted at will by the ground control personnel according to the needs of the development of the fire. The time of the fixed-height blasting of the emergency rescue bomb is also automatically updated, which is completely intelligent. Ground personnel only need to determine the working status of the delay fuze and issue a delivery command to complete the delivery of the emergency rescue bomb.

[0049] In practical applications, in order to avoid the problem of poor balance when a pylon 114 fixes the rescue bomb on the aircraft, preferably, the number of pylons 114 can include two, and accordingly, two hangers 115 are also included. The two pylons 114 are respectively arranged on the outside of the shell 103, and the two hangers 115 are arranged on the inside of the shell 103. The pylons 114 and the hangers 115 are connected by nuts. In the embodiment of the present invention, the pylon 114 is fixedly connected to the aircraft by means of the docking ring 102. When the fixing member inserted into the docking ring 102 is removed, the pylon 114 and the rescue bomb will be separated from the aircraft, that is, the aircraft determines whether to throw the rescue bomb by controlling the fixing member.

[0050] Furthermore, in order to avoid a delay in sending a trigger signal to the delay fuse due to a malfunction of the plug-in fuse 111, preferably, the number of the plug-in fuse 111 can include two, the movable insulating sheets arranged in the two plug-in fuses 111 are fixedly connected to the aircraft, and the two plug-in fuses 111 are located on the same axis as the two brackets 114.

[0051] like Figure 2 As shown, the rescue bomb also includes a front end cover 101, a docking ring 102 and an isolation plate 104. Specifically, the two docking rings 102 are respectively embedded in the interior of the two ends of the shell 103. In order to prevent the docking rings 102 from separating from the shell 103, preferably, the docking rings 102 are glued to the shell 103 by glue. The front end cover 101 and the docking ring 102 embedded in the front end of the shell 103 are set at the front end of the shell 103 by threaded connection, and because there is a circular empty space inside the front end cover 101, after the front end cover 101 is docked with the front end of the shell 103, a circular empty space is formed at the front end of the shell 103; further, the isolation plate 104 is set on the internal docking ring 102 at the rear end of the shell 103 by threaded connection. In actual application, two fire extinguishing agent filling holes and a raised hollow cylinder are respectively provided on the isolation plate 104, wherein the raised hollow cylinder is located at the center of the isolation plate 104, and the two fire extinguishing agent filling holes are respectively provided at other positions of the isolation plate 104, and do not overlap with the positions of the raised hollow cylinders.

[0052] Furthermore, the rescue bomb also includes a blasting charge installation cover 113 and a blasting charge installation tube 116. Specifically, one end of the raised hollow cylinder facing the front end of the shell 103 is connected to the blasting charge installation tube 116. In actual applications, the raised hollow cylinder and the blasting charge installation tube 116 can be glued together, and the central blasting charge column 117 is inserted into the blasting charge installation tube 116. Since a circular space is provided at the front end of the shell 103, the front end of the blasting charge installation tube 116 extends into the circular space of the front end cover 101, but the blasting charge installation tube does not contact the front end cover 101, that is, there is a gap between the blasting charge installation tube and the front end cover 101. Furthermore, the other end of the raised hollow cylinder is screwed to the blasting charge installation cover 113, that is, the central blasting charge column 117 can be fixed in the blasting charge installation tube 116 through the blasting charge installation cover 113.

[0053] It should be noted that in the embodiment of the present invention, since the isolation plate is provided with a raised hollow cylinder, the blasting charge installation tube 116 and the blasting charge installation cover 113 can be installed in the shell through the raised hollow cylinder. Therefore, in practical applications, the central blasting charge column 117 can be stored and transported separately from the rescue bomb; or the blaster 1 can be stored and transported separately from the rescue bomb. Furthermore, since the isolation plate is provided with a fire extinguishing agent filling hole, in practical applications, the fire extinguishing agent and the rescue bomb can also be stored and transported separately.

[0054] In the embodiment of the present invention, since the raised hollow cylinder is located at the center of the isolation plate 104, that is, the blasting installation tube is arranged at the center of the shell 103. Further, the fire extinguishing agent can be filled into the shell 103 through the two fire extinguishing agent filling holes arranged on the isolation plate 104, and because the blasting installation tube is arranged at the center of the shell 103, the fire extinguishing agent filled in the shell 103 is evenly arranged in the shell 103 around the blasting installation tube. When the central blasting charge 117 is detonated, the explosion generates a 360° direction power with the axis as the center, pushing the fire extinguishing agent to evenly scatter around, forming a spherical coverage area with uniform concentration, thereby improving the unit fire extinguishing efficiency of the fire extinguishing agent and increasing the fire extinguishing area of ​​a single emergency rescue bomb.

[0055] In practical applications, in order to prevent the fire extinguishing agent filled in the shell 103 from flowing out of the shell 103, preferably, a plugging cover 112 is further provided on the two fire extinguishing agent filling holes, and the plugging cover 112 is screwed on the fire extinguishing agent filling hole through threads.

[0056] It should be noted that in the embodiment of the present invention, in order to prevent the rescue bomb from burning in the event of an open flame during operation, preferably, the outer layer of the shell 103 material of the rescue bomb is treated with a flame retardant process. Furthermore, the outer layer of the rescue bomb shell 103 is also treated with a moisture-proof industrial process to meet the storage and transportation requirements. Considering that the fire must be extinguished while also reducing the pollution of the forest environment, the shell 103 material of the rescue bomb is a degradable material. The degradable material reduces the processing difficulty and saves processing time in product production, and the material cost is lower than that used in existing solutions. The reduction in time cost and material cost improves the cost-effectiveness and economic benefits of emergency rescue bombs.

[0057] like Figure 2 As shown, the rescue bomb also includes a rear end cover 106 and a power box 105. Preferably, the rear end cover 106 is screwed onto an internal docking ring 102 embedded in the rear end of the shell 103 through threads. In an embodiment of the present invention, the isolation plate 104 and the rear end cover 106 are both connected to the rear end of the shell 103, and the distance between the isolation plate 104 and the front end cover 101 is smaller than the distance between the rear end cover 106 and the front end cover 101.

[0058] Furthermore, in actual application, since the control board 110 requires an external power supply, a mounting plate is also provided on the rear cover 106, and the power box 105 and the control board 110 are respectively provided on both sides of the mounting plate, and the power box 105 and the control board 110 are electrically connected. Two plug-in fuses 111 are both provided on the rear cover 106, and since the rear cover 106 is circular, the two plug-in fuses 111 are both provided on both sides of the rear cover 106, and the two plug-in fuses 111 and the center of the rear cover 106 form a straight line, and the two plug-in fuses 111 and the two brackets 114 are both located on the same axis.

[0059] Furthermore, the rescue bomb also includes a tail base 109, a tail mounting frame 107 and a tail 108. The tail base 109 is screwed to the rear end cover 106 by threads, and the two tail 108 mounting frames 107 are ring-mounted on the tail base 109, and the direction angles of the tail slots set on the tail mounting frames 107 are kept consistent; the eight tail wings 108 are all provided with installation notches, which are inserted into the tail slots on the tail mounting frames 107 according to the positions of the notches.

[0060] It should be noted that the screw-on tail wing base and the rear end cover 106 in the embodiment of the present invention can complete the assembly of the projectile body within 15 to 30 seconds, and the assembly is simple and easy to operate; furthermore, the blaster 1 can be quickly installed into the shell through the isolation plate in a quick-insert manner. Therefore, when the rescue bomb is stored and transported, the blaster 1 can be stored and transported separately in a special explosion-proof box, which ensures the safe use of pyrotechnics, eliminates safety hazards, and complies with national regulations.

[0061] In summary, an embodiment of the present invention provides an airborne fire rescue bomb, comprising: a shell, a pylon, a control panel, a plug-in safety and a central blasting charge; the control panel is electrically connected to the plug-in safety, and is used to send a trigger signal to a delay fuse through the plug-in safety, and the delay fuse is arranged in the central blasting charge; the control panel and the plug-in safety are both arranged on the shell, and a movable insulating sheet is arranged in the plug-in safety, one end of the movable insulating sheet is connected to the aircraft, and the insulating sheet is used to control the working state of the plug-in safety; the central blasting charge is arranged on the central axis of the shell, and the fire extinguishing agent is evenly filled around the central blasting charge in the shell; the pylon is fixed on the shell, and the rescue bomb is set on the aircraft through the pylon, and the pylon and the plug-in safety are located on the same axis. The plug-in fuse and the hanger on the rescue bomb are connected to the aircraft. When the rescue bomb is separated from the aircraft, the movable insulating sheet set in the plug-in fuse is separated from the plug-in fuse, so that the plug-in fuse can start to send a trigger signal to the delay fuse electrically connected to the plug-in fuse. When the delay fuse set in the central blasting column receives the trigger signal, it starts timing. When the delay fuse timing ends, the fuse detonates the central blasting column. The blasting agent instantly generates an explosive force to impact the fire extinguishing agent to scatter around and cover downward, forming a circular effective fire extinguishing area. The rescue bomb solves the problem that the detonation time of the existing fire extinguishing bomb needs to be controlled by the flight altitude of the aircraft and the free diffusion of the fire extinguishing agent leads to uneven unit concentration of the fire extinguishing agent.

[0062] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0063] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An airborne firefighting and rescue bomb, characterized in that: include: Shell, bracket, control panel, plug-in fuse and central blasting charge; The control panel is electrically connected to the plug-in fuse, and is used to send a trigger signal to the delay fuse through the plug-in fuse, and the delay fuse is arranged in the central blasting charge column; wherein the trigger signal carries a delay time, and the delay time is determined according to the vertical distance between the aircraft and the target fire scene; The plug-in fuse is arranged on the housing, a movable insulating sheet is arranged inside the plug-in fuse, one end of the movable insulating sheet is connected to the aircraft, and the movable insulating sheet controls the working state of the plug-in fuse; The central blasting charge is arranged on the central axis of the shell, and the shell is filled with fire extinguishing agent uniformly around the central blasting charge; The pylon is fixed to the housing, the rescue bomb is set on the aircraft by the pylon, and the pylon and the plug-in safety are located on the same axis; The working state of the plug-in fuse includes: establishing an electrical connection with the control board and disconnecting an electrical connection with the control board; When the movable insulating sheet is pulled out from the plug-in fuse, the plug-in fuse establishes an electrical connection with the control board; When the movable insulating sheet is disposed in the plug-in fuse, the plug-in fuse is electrically disconnected from the control panel; When the rescue bomb leaves the aircraft, the movable insulating sheet set in the plug-in fuse is detached from the plug-in fuse, so that the plug-in fuse starts to send a trigger signal to the delay fuse electrically connected to the plug-in fuse. The delay fuse determines the timing time according to the delay time and controls the blasting time of the central blasting charge column. Also includes pendants; The two hangers are respectively arranged on the outside of the shell and fixed together with the two hangers installed on the inside of the shell; It also includes a front end cover, a docking ring and an isolation plate; the two docking rings are respectively embedded in the two ends of the shell, the front end cover and the docking ring are screwed together and arranged at the front end of the shell, and a circular space is arranged inside the front end cover; The isolation plate is screwed onto the internal docking ring embedded in the rear end of the housing through threads; The isolation plate is respectively provided with two fire extinguishing agent filling holes and a raised hollow cylinder, and the raised hollow cylinder is located at the center of the isolation plate; Also includes rear end cover and power supply box; The rear end cover is screwed onto the internal docking ring embedded in the rear end of the housing through threads, and the distance between the isolation plate and the front end cover is smaller than the distance between the rear end cover and the front end cover; The rear end cover is provided with a mounting plate, the power box is fixed on one side of the mounting plate, the control board is fixed on the other side of the mounting plate, and the power box is electrically connected to the control board; The two plug-in fuses are arranged on the rear end cover, and the two plug-in fuses and the two hangers are located on the same axis.

2. The firefighting and rescue bomb according to claim 1, characterized in that: The target fire scene is the height of the tree crowns within the fire scene; The delay time is the time it takes for the rescue bomb to freely fall from the aircraft to reach the top of the tree canopy and be 10 to 20 meters away from the tree canopy.

3. The firefighting and rescue bomb according to claim 2, characterized in that: Also included is a blasting charge installation cover and a blasting charge installation tube; One end of the hollow cylinder facing the inside of the shell is fixedly connected to the blasting charge installation tube, and the other end of the hollow cylinder is screwed to the blasting charge installation cover; The central blasting charge column is arranged inside the blasting charge installation tube. The front end of the blasting charge installation tube extends into the circular space of the front end cover, and there is a gap between the front end cover and the central blasting charge column.

4. The firefighting and rescue bomb according to claim 3, characterized in that: The blasting charge installation tube and the central blasting charge column are both cylindrical; The cross sections of the central blasting charge column, the blasting charge installation tube and the shell are concentric circles.

5. The firefighting and rescue bomb according to claim 4, characterized in that: Also included are the empennage base, empennage mounting bracket and empennage; The tail wing base is screwed to the rear end cover via threads; The two tail wing mounting frames are sleeved on the tail wing base, and the directions and angles of the tail wing slots provided on the tail wing mounting frames are consistent; The eight tail wings are all arranged in tail wing slots on the tail wing mounting frame.

6. The firefighting and rescue bomb according to claim 1, characterized in that: The shell is made of degradable material.

Images