Guided fire extinguishing bomb

Abstract

The utility model relates to a fire extinguishing bomb, in particular to a guided fire extinguishing bomb which comprises a bomb tail, a guided bomb head, a fairing, a first-order fire extinguishing bomb and the like, the guided bomb head is arranged at the advancing end of the fairing, the bomb tail is arranged at the rear end of the fairing, the first-order fire extinguishing bomb is arranged in the fairing, and the bomb tail explodes the first-order fire extinguishing bomb through a detonation mechanism. The device further comprises a second-order fire extinguishing bomb and a secondary ignition mechanism, the second-order fire extinguishing bomb is arranged in the fairing and located between the first-order fire extinguishing bomb and the guided warhead, and the secondary ignition mechanism is arranged between the first-order fire extinguishing bomb and the second-order fire extinguishing bomb. The first-order fire extinguishing bomb and the second-order fire extinguishing bomb are arranged in the device, the first-order fire extinguishing bomb is started through the thermosensitive controller for blasting, impact force generated by the first-order fire extinguishing bomb pushes the ignition block, the ignition block ignites the second ignition wire, and after the second-order fire extinguishing bomb is thrown by a certain distance, the second-order fire extinguishing bomb is blasted by the second ignition wire.

Description

Technical Field

[0001] The utility model relates to a fire extinguishing bomb, in particular to a guided fire extinguishing bomb. Background Art

[0002] Forest fire extinguishing bombs are a type of equipment specifically designed to extinguish large-scale fires in mountain forests, forests, grasslands, etc. They are one of the cutting-edge weapons for large-scale forest fire extinguishing. These fire extinguishing bombs adopt a variety of technologies and fire extinguishing principles to effectively control and extinguish fires.

[0003] Chinese Patent with the publication number CN114470578A proposes a guided fire extinguishing bomb, which includes a fairing. The bottom end of the fairing is threadedly connected to the top of the front wing steering wing, the bottom end of the front wing steering wing is threadedly connected to the top end of the bomb body, the bottom end of the bomb body is installed with a tail through an effect mechanism, an isolation mechanism is arranged inside the bomb body, a water-based fire extinguishing agent and a fire extinguishing bomb are installed inside the isolation mechanism, a storage cavity is opened inside the tail, a positioning rod is welded to the top surface of the storage cavity, a first spring is sleeved on the side wall of the positioning rod, a steering groove is opened on the side wall of the moving disk, one end of the tail is rotatably connected to the steering groove through a pin shaft, a sliding groove is opened on the bottom side wall of the tail, and a limiting mechanism is installed on the side wall of the tail. It can use guidance means to control the fire extinguishing bomb to remotely and accurately strike the fire extinguishing area, and then separate the bomb body and the tail through the effect mechanism, so that the fire extinguishing agent inside it is sprinkled in the designated area, so as to achieve remote and efficient fire extinguishing.

[0004] This device can achieve precise strikes on the fire extinguishing area. However, in the face of extremely severe fire situations, the fire extinguishing radius of a single-explosion fire extinguishing bomb is relatively limited. This means that in the face of raging fires, we cannot solely rely on a one-time explosion to completely extinguish the fire. The fire extinguishing range of the fire extinguishing bomb has a clear limit. Once beyond this limit, the fire may still continue to spread, posing a threat to the surrounding environment and life and property.

[0005] The utility model proposes a fire extinguishing bomb with secondary explosion to improve the fire extinguishing range and the fire extinguishing effect. Summary of the Utility Model

[0006] In order to overcome the shortcomings of the limited explosion range of existing fire extinguishing bombs and the difficulty in improving the fire extinguishing effect, the utility model provides a guided fire extinguishing bomb with secondary explosion.

[0007] A guided fire extinguishing bomb, comprising a bomb tail, a guided warhead, a fairing and a first-stage fire extinguishing bomb. The guided warhead is arranged at the advancing end of the fairing, the bomb tail is arranged at the rear end of the fairing, and the first-stage fire extinguishing bomb is arranged inside the fairing. The bomb tail implements blasting on the first-stage fire extinguishing bomb through a detonation mechanism. It also includes a second-stage fire extinguishing bomb and a secondary ignition mechanism. The second-stage fire extinguishing bomb is arranged inside the fairing and between the first-stage fire extinguishing bomb and the guided warhead. A secondary ignition mechanism is arranged between the first-stage fire extinguishing bomb and the second-stage fire extinguishing bomb. After the first-stage fire extinguishing bomb explodes, it pushes the second-stage fire extinguishing bomb to advance. At the same time, the secondary ignition mechanism is triggered, and the second-stage fire extinguishing bomb is detonated through the secondary ignition mechanism, thereby increasing the blasting range of the device and further improving the fire extinguishing effect.

[0008] A more excellent solution is that the detonation mechanism consists of a thermal controller, a heating coil and a first fuse. The bomb tail is provided with a thermal controller, the thermal controller is connected with a heating coil, and the heating coil is connected with the first-stage fire extinguishing bomb through the first fuse.

[0009] A more excellent solution is that the secondary ignition mechanism consists of an ignition block and a second fuse. There is a second combustion chamber between the first-stage fire extinguishing bomb and the second-stage fire extinguishing bomb. The ignition block is arranged inside the second combustion chamber, and the ignition block is connected with the second-stage fire extinguishing bomb through the second fuse.

[0010] A more excellent solution is that the second fuse is a slow fuse.

[0011] A more excellent solution is that it also includes a push rod, a return spring, gunpowder and a third fuse. The push rod slides through the guided warhead and a return spring is connected between them. There is a first combustion chamber between the guided warhead and the second-stage fire extinguishing bomb. A sufficient amount of gunpowder is arranged inside the first combustion chamber. The end of the push rod contacts the gunpowder, and the gunpowder is connected with the second-stage fire extinguishing bomb through the third fuse.

[0012] A more excellent solution is that it also includes a signal lamp. The bomb tail is configured with a tail fin, and the signal lamp is connected to the tail fin.

[0013] A more excellent solution is that it also includes a counterweight block, and the counterweight block is respectively connected to the first-stage fire extinguishing bomb and the second-stage fire extinguishing bomb.

[0014] A more excellent solution is that it also includes an alarm generator.

[0015] Compared with the prior art, the utility model has the following advantages: The device is internally provided with a first-stage fire extinguishing bomb and a second-stage fire extinguishing bomb. The first-stage fire extinguishing bomb is detonated by a thermal controller. The impact force generated by the first-stage fire extinguishing bomb pushes the ignition block, and the ignition block generates sparks through friction. The second fuse is ignited by the sparks. After the second-stage fire extinguishing bomb is thrown a certain distance, the second fuse detonates the second-stage fire extinguishing bomb. Compared with the existing device, the device can achieve two detonations of the fire extinguishing bomb, effectively increasing the fire extinguishing range and further improving the forest fire extinguishing effect. Brief Description of the Drawings

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the thermal controller, heating coil and first ignition wire of the present utility model.

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the ejector rod, return spring and gunpowder of the present utility model.

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the ignition block and the second ignition wire of the present utility model.

[0020] The markings of each component in the drawings are as follows: 1. Tail of the bomb, 2. Guided warhead, 3. First-order fire extinguishing bomb, 301. Second-order fire extinguishing bomb, 4. Thermal controller, 5. Heating coil, 6. First ignition wire, 7. Ejector rod, 8. Return spring, 9. Gunpowder, 10. First combustion chamber, 11. Third ignition wire, 12. Second ignition wire, 13. Second combustion chamber, 14. Ignition block, 15. Signal lamp, 16. Counterweight, 17. Fairing, 18. Alarm generator. Detailed Description of the Preferred Embodiment

[0021] Although the present utility model may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present utility model. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used to describe the drawings and do not represent a limitation on the scope of the present utility model as defined by the appended claims. Any numerical designations such as first or second are merely illustrative and are not intended to limit the scope of the present utility model in any way.

[0022] Embodiment: A guided fire extinguishing bomb, such as Figure 1 , Figure 2 and Figure 4As shown in the figure, it includes a tail 1, a guided warhead 2, a fairing 17, and a first-stage fire extinguishing bomb 3. The guided warhead 2 is arranged at the advancing end of the fairing 17, the tail 1 is arranged at the rear end of the fairing 17, and the first-stage fire extinguishing bomb 3 is arranged inside the fairing 17. The tail 1 implements blasting on the first-stage fire extinguishing bomb 3 through a detonating mechanism. The detonating mechanism consists of a thermal controller 4, a heating coil 5, and a first fuse 6. The tail 1 is provided with the thermal controller 4, the thermal controller 4 is connected to the heating coil 5, and the heating coil 5 is connected to the first-stage fire extinguishing bomb 3 through the first fuse 6. When the thermal controller 4 is started, the thermal controller 4 starts the heating coil 5, and the heating coil 5 ignites the first fuse 6, and then the first-stage fire extinguishing bomb 3 explodes. It also includes a second-stage fire extinguishing bomb 301 and a secondary ignition mechanism. The second-stage fire extinguishing bomb 301 is arranged inside the fairing 17 and between the first-stage fire extinguishing bomb 3 and the guided warhead 2. A secondary ignition mechanism is arranged between the first-stage fire extinguishing bomb 3 and the second-stage fire extinguishing bomb 301. After the first-stage fire extinguishing bomb 3 explodes, it pushes the second-stage fire extinguishing bomb 301 to move forward. At the same time, the secondary ignition mechanism is triggered, and the second-stage fire extinguishing bomb 301 is exploded through the secondary ignition mechanism, so as to increase the blasting range of the device and further improve the fire extinguishing effect.

[0023] As Figure 4 shown, the secondary ignition mechanism consists of an ignition block 14 and a second fuse 12. There is a second combustion chamber 13 between the first-stage fire extinguishing bomb 3 and the second-stage fire extinguishing bomb 301. The ignition block 14 is arranged inside the second combustion chamber 13, and the ignition block 14 is connected to the second-stage fire extinguishing bomb 301 through the second fuse 12. It should be noted that after the first-stage fire extinguishing bomb 3 explodes, it pushes the second-stage fire extinguishing bomb 301 to be thrown out. At the same time, the impact force generated by the first-stage fire extinguishing bomb 3 pushes the ignition block 14, and the ignition block 14 generates sparks through friction. The second fuse 12 is ignited by the sparks. The second fuse 12 is a slow fuse, and the burning speed is controlled at 2 seconds per centimeter of combustion. After the second-stage fire extinguishing bomb 301 is thrown out a certain distance, the second fuse 12 explodes the second-stage fire extinguishing bomb 301.

[0024] As Figure 1 , Figure 2 and Figure 3 shown, it also includes a push rod 7, a return spring 8, gunpowder 9, and a third fuse 11. The push rod 7 is slidably inserted through the guided warhead 2, and a return spring 8 is connected between the two. There is a first combustion chamber 10 between the guided warhead 2 and the second-stage fire extinguishing bomb 301. A sufficient amount of gunpowder 9 is arranged inside the first combustion chamber 10. The end of the push rod 7 contacts the gunpowder 9, and the gunpowder 9 is connected to the second-stage fire extinguishing bomb 301 through the third fuse 11. If the secondary ignition mechanism does not work, such as the ignition block 14 not generating sparks through friction, then the push rod 7 will act. That is, after the second-stage fire extinguishing bomb 301 is thrown out and contacts the ground, the push rod 7 moves after contacting the ground, and the push rod 7 will impact the gunpowder 9. The sparks generated therefrom will ignite the third fuse 11, and then ignite the second-stage fire extinguishing bomb 301 to achieve the effect of alternative ignition and prevent dud bombs.

[0025] As Figure 1 shown, it further includes a signal lamp 15, a counterweight 16 and an alarm generator 18. The tail 1 of the projectile is configured with fins, and the signal lamp 15 is connected to the fins. The counterweight 16 is respectively connected to the first-order fire extinguishing bomb 3 and the second-order fire extinguishing bomb 301. The counterweight 16 is used to maintain the flight attitude of the first-order fire extinguishing bomb 3 and the second-order fire extinguishing bomb 301, improve the throwing distance of the second-order fire extinguishing bomb 301, and thus improve the fire extinguishing range. The alarm generator 18 is connected to the fairing 17, and the alarm generator 18 can emit a sharp alarm to remind the surrounding people after the device is launched.

[0026] Working principle: The tail 1 of the projectile is started to launch the device. After the device reaches the designated forest fire point, the thermal controller 4 is started. The thermal controller 4 starts the heating coil 5, and the heating coil 5 ignites the first fuse 6. Then the first-order fire extinguishing bomb 3 explodes. The impact force generated by the explosion of the first-order fire extinguishing bomb 3 projects the second-order fire extinguishing bomb 301. At the same time, the impact force generated by the first-order fire extinguishing bomb 3 pushes the ignition block 14, and the ignition block 14 generates sparks by friction. The second fuse 12 is ignited by the sparks. After the second-order fire extinguishing bomb 301 is thrown a certain distance, the second fuse 12 detonates the second-order fire extinguishing bomb 301. If the secondary ignition mechanism fails to function, such as the ignition block 14 fails to generate sparks by friction, etc., the ejector rod 7 will act. That is, after the second-order fire extinguishing bomb 301 is thrown and touches the ground, the ejector rod 7 displaces after touching the ground, and the ejector rod 7 will strike the gunpowder 9, and the sparks generated thereby will ignite the second-order fire extinguishing bomb 301 to achieve the effect of alternative ignition and prevention of dud bombs. The device can achieve two detonations of the fire extinguishing bombs, effectively improving the fire extinguishing range and thus improving the forest fire extinguishing effect.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A guided fire extinguishing bomb, comprising a tail (1), a guided warhead (2), a fairing (17) and a first-stage fire extinguishing bomb (3), wherein the guided warhead (2) is arranged at the traveling end of the fairing (17), the tail (1) is arranged at the rear end of the fairing (17), the first-stage fire extinguishing bomb (3) is arranged in the fairing (17), the tail (1) blasts the first-stage fire extinguishing bomb (3) through a detonation mechanism, and is characterized in that: The device also comprises a second-stage fire extinguishing bomb (301) and a secondary ignition mechanism. The second-stage fire extinguishing bomb (301) is arranged in the fairing (17) and between the first-stage fire extinguishing bomb (3) and the guided warhead (2). The secondary ignition mechanism is arranged between the first-stage fire extinguishing bomb (3) and the second-stage fire extinguishing bomb (301). After the first-stage fire extinguishing bomb (3) explodes, it pushes the second-stage fire extinguishing bomb (301) to move forward, and at the same time triggers the secondary ignition mechanism. The second-stage fire extinguishing bomb (301) is exploded by the secondary ignition mechanism, thereby increasing the explosion range of the device and further improving the fire extinguishing effect.

2. A guided fire extinguishing bomb according to claim 1, characterized in that: The detonation mechanism is composed of a thermal controller (4), a heating coil (5) and a first ignition wire (6); the bomb tail (1) is provided with a thermal controller (4); the thermal controller (4) is connected to the heating coil (5); and the heating coil (5) is connected to the first-stage fire extinguishing bomb (3) via the first ignition wire (6).

3. A guided fire extinguishing bomb according to claim 2, characterized in that: The secondary ignition mechanism is composed of an ignition block (14) and a second ignition wire (12); a second combustion chamber (13) is provided between the first-stage fire extinguishing bomb (3) and the second-stage fire extinguishing bomb (301); an ignition block (14) is arranged in the second combustion chamber (13); and the ignition block (14) is connected to the second-stage fire extinguishing bomb (301) via the second ignition wire (12).

4. A guided fire extinguishing bomb according to claim 3, characterized in that: The second fuse (12) is a slow fuse.

5. A guided fire extinguishing bomb according to claim 4, characterized in that: The invention also comprises a push rod (7), a reset spring (8), gunpowder (9) and a third ignition line (11); the push rod (7) is slidably connected to the guided warhead (2) and a reset spring (8) is connected between the two; a first combustion chamber (10) is arranged between the guided warhead (2) and the second-stage fire extinguishing bomb (301); a sufficient amount of gunpowder (9) is arranged in the first combustion chamber (10); the end of the push rod (7) contacts the gunpowder (9), and the gunpowder (9) is connected to the second-stage fire extinguishing bomb (301) through the third ignition line (11).

6. A guided fire extinguishing bomb according to claim 5, characterized in that: It also includes a signal light (15). The tail (1) is provided with a tail wing, and the tail wing is connected with the signal light (15).

7. A guided fire extinguishing bomb according to claim 6, characterized in that: It also includes a counterweight block (16), which is respectively connected to the first-stage fire extinguishing bomb (3) and the second-stage fire extinguishing bomb (301).

8. A guided fire extinguishing bomb according to claim 7, characterized in that: It also includes an alarm generator (18), which is connected to the fairing (17).

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