A satellite-guided fire-extinguishing cluster bomb

Abstract

The invention discloses a satellite-guided fire-extinguishing cluster bomb. The invention forms a cavity through a head cover, a foam front shell, a foam middle shell, a foam rear shell and a control cabin shell, and a plurality of fire-extinguishing bullets are placed in the cavity. After the device is equipped with a driving device to reach the air above the fire point, the fire-extinguishing bullets can be thrown. The invention throws the fire-extinguishing agent to the fire point from the air, has a large coverage range, and can take into account both the crown fire and the surface fire.

Description

Technical Field

[0001] The invention belongs to the field of fire extinguishing bombs, and in particular relates to a satellite-guided fire extinguishing cluster bomb. Background Art

[0002] Fire is one of the most frequent and common disasters that threaten public safety and social development. With the development of society, people have adopted various technical measures to prevent and extinguish fires.

[0003] With the development of science and technology in recent years, drones have been applied to all walks of life, and in the field of firefighting, they have also demonstrated their advantages of flexibility, simple operation, safety and reliability. The biggest advantage of drones is that they can quickly enter the fire scene that personnel cannot quickly reach, so as to carry out fire extinguishing operations, which can effectively prevent the spread of fire. The existing air-dropped fire-fighting bombs that match fire-fighting drones are fire-fighting bombs filled with water-based or water-based fire extinguishing agents, and their throwing effect and fire extinguishing area are different from those of dry powder fire extinguishing agents. There are also dry powder fire extinguishing agents, and the entire bomb body is filled with dry powder fire extinguishing agents. A fixed height detonation mechanism is used for crown fires or a ground-touching detonation mechanism is used for surface fires. The fire situations that can be dealt with by both are relatively simple. And because of the accuracy of drone delivery, it is not possible to effectively extinguish fires in the early stages of fires and reduce resource waste. Therefore, there is a need for a fire-fighting bomb that can be accurately guided, can take into account both crown fires and surface fires, and has a large fire extinguishing area.

[0004] The invention with application number 201910663499.7 proposed a delayed-expansion forest fire bomb, which controls the fire bomb to break and release the fire extinguishing agent 10-20 meters above the tree canopy by two parameters: aircraft altitude and bomb landing acceleration. Its control method does not take into account factors such as resistance and aircraft speed, so the error is large, making it difficult to accurately airdrop firefighting in the early stages of a fire.

[0005] The invention with application number 201911094989.6 proposes an air-dropped forest fire-extinguishing bomb with double insurance detonation. The invention focuses on the use of double insurance guidance technology to prevent duds and ensure the effective release, dispersion and fire extinguishing of the fire extinguishing agent. Its shortcomings are that it cannot take into account crown fires and cannot accurately deliver fire extinguishing. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of existing fire extinguishing bombs, such as the inability to accurately guide and the inability to simultaneously take into account the crown fire and the surface fire, and to provide a satellite-guided fire extinguishing cluster bomb.

[0007] In order to achieve the above-mentioned purpose, the present invention includes a hood, a foam front shell, a foam middle shell, a foam rear shell and a control cabin shell. The hood, the foam front shell, the foam middle shell, the foam rear shell and the control cabin shell are connected in sequence to form a cylindrical cavity. A plurality of fire extinguishing bullets are arranged in the cylindrical cavity. A rudder is arranged on the control cabin shell, and a control system is arranged in the control cabin shell.

[0008] A front bulkhead is arranged between the hood and the foam front shell, a load-bearing bulkhead is arranged between the foam front shell and the foam middle shell, a rear bulkhead is arranged between the foam middle shell and the foam rear shell, a connecting bulkhead is arranged between the foam rear shell and the control cabin shell, a wing support is arranged between the load-bearing bulkhead and the rear bulkhead, a wing is arranged on the wing support, and the foam middle shell is placed between the frame formed by the load-bearing bulkhead, the rear bulkhead and the wing support.

[0009] A number of identical circular through holes are provided on the front bulkhead, the load-bearing bulkhead and the rear bulkhead, and a number of fire-extinguishing bullets are stacked to form a cylindrical fire-extinguishing bullet group. The fire-extinguishing bullet group passes through the through holes on the front bulkhead, the load-bearing bulkhead and the rear bulkhead, with one end in contact with the connecting bulkhead and the other end placed in the head cover.

[0010] A plurality of through holes are formed on the front bulkhead, the load-bearing bulkhead and the rear bulkhead, and carbon tubes are inserted into the through holes. One end of the carbon tube is fixed on the connecting bulkhead, and the carbon tube makes the front bulkhead, the load-bearing bulkhead, the rear bulkhead and the connecting bulkhead coaxially arranged.

[0011] Stop pressure blocks are arranged on the carbon tubes on both sides of the load-bearing bulkhead, and the two stop pressure blocks are fixed on the load-bearing bulkhead.

[0012] The load-bearing bulkhead is provided with lifting ears.

[0013] A gas generator is arranged between the control cabin shell and the foam rear shell. The gas generator is connected to an airbag, and the airbag can squeeze the fire extinguishing bullet after being inflated.

[0014] The control system includes a GPS antenna, a GPS positioning module, an inertial measurement module, a flight control computer and a detonation height control device. The flight control computer is connected to the inertial measurement module and the detonation height control device, and the GPS antenna is connected to the GPS positioning module. The flight control computer is used to collect data from the inertial measurement module and control the opening of the detonation height control device.

[0015] The GPS antenna is placed at an angle.

[0016] A separation connector is provided on the top of the control cabin housing.

[0017] Compared with the prior art, the present invention forms a cavity through a hood, a foam front shell, a foam middle shell, a foam rear shell and a control cabin shell, and places a number of fire extinguishing bullets in the cavity. After being equipped with a driving device, the device can reach the top of the fire point and then sprinkle the fire extinguishing bullets. The present invention sprinkles fire extinguishing agent on the fire point from the air, has a larger coverage area, and can take into account both crown fire and surface fire.

[0018] Furthermore, the present invention is provided with an inertial measurement module and a GPS positioning module, which can correct the flight attitude according to the data of the inertial measurement unit and the current coordinates measured by the GPS module during flight to ensure that the fire extinguishing bomb does not deviate from the predetermined trajectory.

[0019] Furthermore, the GPS antenna of the present invention is placed at an angle to ensure that the GPS signal of the fire extinguishing bomb is stable when flying at a negative angle of attack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the foam rear shell and the control cabin shell in the present invention;

[0023] Figure 4 It is a schematic diagram of the foam shell structure of the present invention;

[0024] In the figure, 1-head cover, 2-front bulkhead, 3-foam front shell, 4-load-bearing bulkhead, 5-lifting ear, 6-wing, 7-foam rear shell, 8-foam middle shell, 9-control cabin shell, 10-rudder, 11-fire extinguishing bullet, 12-carbon tube, 13-connecting bulkhead, 14-stop pressure block, 15-rear bulkhead, 16-wing support, 17-airbag, 18-gas generator, 19-battery, 20-servo, 21-GPS antenna, 22-GPS positioning module, 23-inertial measurement module, 24-flight control computer, 25-detonation height control device, 26-separation connector. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 4The present invention comprises a hood 1, a foam front shell 3, a foam middle shell 8, a foam rear shell 7 and a control cabin shell 9. The hood 1, the foam front shell 3, the foam middle shell 8, the foam rear shell 7 and the control cabin shell 9 are connected in sequence to form a cylindrical cavity. A plurality of fire extinguishing bullets 11 are arranged in the cylindrical cavity. A rudder 10 is arranged on the control cabin shell 9. A control system is arranged in the control cabin shell 9. A front bulkhead 2 is arranged between the hood 1 and the foam front shell 3, a load-bearing bulkhead 4 is arranged between the foam front shell 3 and the foam middle shell 8, a rear bulkhead 15 is arranged between the foam middle shell 8 and the foam rear shell 7, a connecting bulkhead 13 is arranged between the foam rear shell 7 and the control cabin shell 9, a wing support 16 is arranged between the load-bearing bulkhead 4 and the rear bulkhead 15, and a wing 6 is arranged on the wing support 16. The foam middle shell 8 is placed between the frames formed by the load-bearing bulkhead 4, the rear bulkhead 15 and the wing support 16.

[0027] The head cover 1 is made of EPS foam, which can reduce the weight of the entire bullet. It is bonded to the front bulkhead 2 with foam glue. The head cover 1 is ellipsoidal in shape, which can reduce the resistance of the fire extinguishing bullet during flight and limit the forward movement of the fire extinguishing bullet 11. The foam front shell 3, the foam middle shell 8 and the foam rear shell 7 are all made of EPS foam.

[0028] The fire extinguishing bullet 11 is a disposable dry powder fire extinguishing bullet, which is cylindrical and has a fuse on the outside. After encountering fire, the internal explosion device is quickly detonated to throw the fire extinguishing agent outward.

[0029] See also Figure 2 and Figure 4 , a number of identical circular through holes are provided on the front bulkhead 2, the load-bearing bulkhead 4 and the rear bulkhead 15, and a number of fire-extinguishing bullets 11 are stacked to form a cylindrical fire-extinguishing bullet group, which passes through the through holes on the front bulkhead 2, the load-bearing bulkhead 4 and the rear bulkhead 15, one end of which contacts the connecting bulkhead 13, and the other end is placed in the head cover 1. A number of through holes are provided on the front bulkhead 2, the load-bearing bulkhead 4 and the rear bulkhead 15, and a carbon tube 12 is inserted into the through hole, one end of the carbon tube 12 is fixed on the connecting bulkhead 13, and the carbon tube 12 makes the front bulkhead 2, the load-bearing bulkhead 4, the rear bulkhead 15 and the connecting bulkhead 13 coaxially arranged. Stop pressure blocks 14 are provided on the carbon tubes 12 on both sides of the load-bearing bulkhead 4, and two stop pressure blocks 14 are fixed on the load-bearing bulkhead 4, and the load-bearing bulkhead 4 is provided with a lifting ear 5. The lifting lug 5 is made of stainless steel and is fixed to the top of the load-bearing bulkhead 4 with two M8 countersunk screws. As a hanging point for the aircraft to carry the fire-extinguishing bomb, it must bear the weight of the entire bomb.

[0030] The main load-bearing structure is composed of a front bulkhead 2, a load-bearing bulkhead 4, a rear bulkhead 15, a connecting bulkhead 13 and four carbon tubes 12. All bulkheads are made of aluminum alloy. The four carbon tubes 12 are evenly distributed up and down, left and right, and inserted into corresponding holes on the four bulkheads. The carbon tubes 12 and the bulkheads are bonded with epoxy resin to ensure structural stability.

[0031] The stop block 14 is made of aluminum alloy and is used to withstand the pressure of the stop arm of the weapon rack on the carrier aircraft. It is sleeved on the upper carbon tube 12. There are two of them, which are located on both sides of the load-bearing bulkhead 4 and fixed to the load-bearing bulkhead 4 with screws.

[0032] A number of wing supports 16 are arranged between the load-bearing bulkhead 4 and the rear bulkhead 15, and the wing 6 is fixed on the wing supports 16. The wing supports 16 are made of aluminum alloy, are long strips, and are 4 in number. They are evenly distributed in an X shape between the load-bearing bulkhead 4 and the rear bulkhead 15, and are fixed to the bulkheads on both sides with 4 screws at both ends. The wing 6 is made of flame-retardant plastic material, and has four T-shaped seats at the bottom, which are evenly distributed in an X shape and fixed to the wing supports 16 with screws.

[0033] See also Figure 3 A gas generator 18 is arranged between the control cabin shell 9 and the foam rear shell 7. The gas generator 18 is connected to the airbag 17. After the airbag 17 is inflated, it can squeeze the fire extinguishing bullet 11. The control system includes a GPS antenna 21, a GPS positioning module 22, an inertial measurement module 23, a flight control computer 24 and a detonation height control device 25. The GPS antenna 21, the GPS positioning module 22, the inertial measurement module 23, the flight control computer 24 and the detonation height control device 25 are fixed in the control cabin shell 9 as a whole by a bracket. The flight control computer 24 is connected to the inertial measurement module 23 and the detonation height control device 25. The GPS antenna 21 is connected to the GPS positioning module 22. The flight control computer 24 is used to collect data from the inertial measurement module 23 and control the opening of the detonation height control device 25. The GPS antenna 21 is placed obliquely. A separation connector 26 is arranged on the top of the control cabin shell 9 for communicating with the carrier aircraft, which is separated by gravity.

[0034] The air bag 17 and the gas generator 18 together constitute a fire extinguishing bullet dispersing and separating device, which are fixed at the center position of the connecting partition frame, and the air bag bag is placed in the hollow part after the fire extinguishing bullets are arranged.

[0035] A steering gear 20 is arranged in the control cabin housing 9. There are four steering gears 20, which are fixed to the control cabin housing 9 in an X-shaped distribution with screws. The rudder 10 is made of aluminum alloy material and is used to control the flight posture of the fire extinguishing bomb. It is fixed on the steering plate of the steering gear 20 and driven by the steering gear 20. A battery 19 is fixed in the control cabin housing 9.

[0036] When the carrier aircraft finds the fire point, the measured longitude and latitude coordinates are written into the flight control system of the fire-extinguishing bomb that has been powered on for self-test. When the operator gives the launch command, the carrier aircraft pylon is unhooked, the fire-extinguishing bomb is dropped, and the separation connector 26 is pulled off by gravity. The fire-extinguishing bomb flies toward the target coordinates according to the predetermined trajectory. The flight attitude is corrected according to the data of the inertial measurement unit and the current coordinates measured by the GPS module during the flight to ensure that the fire-extinguishing bomb does not deviate from the predetermined trajectory.

[0037] When the fire-extinguishing bomb reaches the predetermined height position above the target by satellite guidance, the detonation height control device 25 starts and activates the gas generator 18. The gas generator 18 generates a large amount of fuel gas, which quickly blows up the airbag 17. The pressure generated by the swelling of the airbag 17 squeezes the fire-extinguishing bullet 11 to the surroundings until the foam shell is broken and the fire-extinguishing bullet 11 is scattered to the surroundings. The above process will be completed in a very short time. What can be seen with the naked eye is that the fire-extinguishing bomb explodes above the target and the fire-extinguishing bullet 11 is scattered over the fire point. The scattered fire-extinguishing bullets 11 will explode on the crown of the tree when they touch the crown fire and sprinkle the fire extinguishing agent to extinguish the crown fire. After they fall to the ground, they will explode on the ground when they touch the fire on the ground and sprinkle the fire extinguishing agent to extinguish the surface fire.

Claims

1. A satellite-guided fire-extinguishing cluster bomb, characterized in that: The invention comprises a head cover (1), a foam front shell (3), a foam middle shell (8), a foam rear shell (7) and a control cabin shell (9); the head cover (1), the foam front shell (3), the foam middle shell (8), the foam rear shell (7) and the control cabin shell (9) are connected in sequence to form a cylindrical cavity; a plurality of fire extinguishing bullets (11) are arranged in the cylindrical cavity; a rudder (10) is arranged on the control cabin shell (9); and a control system is arranged in the control cabin shell (9); A front bulkhead (2) is provided between the head cover (1) and the foam front shell (3), a load-bearing bulkhead (4) is provided between the foam front shell (3) and the foam middle shell (8), a rear bulkhead (15) is provided between the foam middle shell (8) and the foam rear shell (7), a connecting bulkhead (13) is provided between the foam rear shell (7) and the control cabin shell (9), a wing support (16) is provided between the load-bearing bulkhead (4) and the rear bulkhead (15), a wing (6) is provided on the wing support (16), and the foam middle shell (8) is placed between the frame formed by the load-bearing bulkhead (4), the rear bulkhead (15) and the wing support (16); A gas generator (18) is provided between the control cabin shell (9) and the foam rear shell (7), and the gas generator (18) is connected to the air bag (17). The air bag (17) can squeeze the fire extinguishing bullet (11) after being inflated. The control system comprises a GPS antenna (21), a GPS positioning module (22), an inertial measurement module (23), a flight control computer (24) and a detonation height control device (25); the flight control computer (24) is connected to the inertial measurement module (23) and the detonation height control device (25); the GPS antenna (21) is connected to the GPS positioning module (22); and the flight control computer (24) is used to collect data from the inertial measurement module (23) and control the opening of the detonation height control device (25).

2. A satellite-guided fire-extinguishing cluster bomb according to claim 1, characterized in that: A plurality of identical circular through holes are provided on the front bulkhead (2), the load-bearing bulkhead (4) and the rear bulkhead (15), and a plurality of fire-extinguishing bullets (11) are stacked to form a columnar fire-extinguishing bullet group. The fire-extinguishing bullet group passes through the through holes on the front bulkhead (2), the load-bearing bulkhead (4) and the rear bulkhead (15), with one end contacting the connecting bulkhead (13) and the other end being placed in the head cover (1).

3. A satellite-guided fire-extinguishing cluster bomb according to claim 1, characterized in that: A plurality of through holes are formed on the front bulkhead (2), the load-bearing bulkhead (4) and the rear bulkhead (15), and carbon tubes (12) are inserted into the through holes. One end of the carbon tube (12) is fixed to the connecting bulkhead (13). The carbon tube (12) enables the front bulkhead (2), the load-bearing bulkhead (4), the rear bulkhead (15) and the connecting bulkhead (13) to be coaxially arranged.

4. A satellite-guided fire-extinguishing cluster bomb according to claim 3, characterized in that: Stopping pressure blocks (14) are provided on the carbon tubes (12) on both sides of the load-bearing bulkhead (4), and the two stopping pressure blocks (14) are fixed on the load-bearing bulkhead (4).

5. The satellite-guided fire-extinguishing cluster bomb according to claim 1, characterized in that: The load-bearing bulkhead (4) is provided with a lifting lug (5).

6. The satellite-guided fire-extinguishing cluster bomb according to claim 1, characterized in that: The GPS antenna (21) is placed at an angle.

7. The satellite-guided fire-extinguishing cluster bomb according to claim 1, characterized in that: A separation connector (26) is provided on the top of the control cabin housing (9).

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