Projection fire extinguishing bomb

Abstract

A plurality of grooves are formed in the round vertical face of a bomb barrel, and the grooves are of a 360-degree annular structure and are perpendicular to the extending direction of the bomb barrel; two handle structures for taking the fire extinguishing bomb are arranged on the bomb tail; according to the fire extinguishing bomb, the handle structure capable of being buckled with the hand is arranged at the bomb tail, so that the effects of being convenient to take, transfer and install are achieved, the lock plate is arranged at the hand holding structure, when the fire extinguishing bomb needs to be taken and installed, the lock plate can be opened to facilitate taking and transferring, and after installation is completed, the locking male head and the locking female head of the lock plate are connected and buckled; and the lock plate covers and seals the empty groove, so that turbulent flow caused by the empty groove in the falling process of the fire extinguishing bomb is avoided, and the influence on the projection accuracy of the fire extinguishing bomb is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing bomb equipment, in particular to a projectile fire extinguishing bomb. Background Art

[0002] A fire bomb is a special fire extinguishing device, usually a spherical or cylindrical device, which contains a fire extinguishing agent or a mixture of fire extinguishing agents. When the fire bomb is thrown at the fire scene, it will automatically trigger and release the fire extinguishing agent to extinguish the fire. Due to the limited throwing distance of firefighters, firefighters need to get close to the fire point before they can throw the bomb to extinguish the fire, which is very dangerous. Since firefighters manually throw fire bombs, the accuracy of the throwing is difficult to control, which is not conducive to rapid fire extinguishing at the fire scene. With the rapid development of drone technology, the use of drones to throw fire bombs can not only protect personnel safety, but also accurately throw fire bombs.

[0003] The Chinese utility model patent "A delayed explosion fire extinguishing bomb" with application number 202021112515.8 provides a fire extinguishing bomb that can achieve a delayed detonation effect through a PCB board, release the fire extinguishing bomb at a specific height, and use the delayed detonation function to make the fire extinguishing bomb explode at a preset height to maximize the coverage area and improve the fire extinguishing effect.

[0004] However, this technical solution also has certain defects. For example, after being filled with the fire extinguishing agent, the weight of the fire extinguishing bomb is relatively heavy. The overall structure of the fire extinguishing bomb is rounded, and there is no structure that is convenient for grabbing and moving, which makes the process of installing the fire extinguishing bomb on the drone difficult. At the same time, this fire extinguishing bomb needs to be used in a delivery bin. If a tightening belt is used for lifting, due to its rounded structure, it will lead to unstable installation and there is a possibility of accidental falling off during the flight of the drone, so its use is limited. Utility Model Content

[0005] One advantage of the utility model is that it provides a projectile fire extinguishing bomb, wherein a handle structure that can be buckled by hand is arranged at the tail of the bomb, thereby achieving the effect of convenient taking, transfer and installation.

[0006] One advantage of the present invention is that it provides a projected fire extinguishing bomb, wherein a locking plate is arranged at the handle structure, and when the fire extinguishing bomb needs to be taken and installed, the locking plate can be opened for easy taking and transfer, and after the installation is completed, the locking male head and the locking female head of the locking plate are connected and buckled, so that the locking plate covers the empty groove and seals it, thereby avoiding turbulence caused by the empty groove during the falling process of the fire extinguishing bomb, so as not to affect the accuracy of the projecting of the fire extinguishing bomb.

[0007] An advantage of the utility model is that it provides a projectile fire extinguishing bomb, wherein a friction protrusion is arranged in the empty groove, so as to increase the friction between the shell of the fire extinguishing bomb and a human hand, so as to prevent the fire extinguishing bomb from being damaged due to accidental slipping.

[0008] One advantage of the utility model is that it provides a projectile fire extinguishing bomb, in which two grooves are arranged on the circular vertical surface of the bomb body, and the tightening belt can be inserted into the grooves, thereby ensuring that the tightening belt can tightly fix the fire extinguishing bomb and will not slip off.

[0009] One advantage of the utility model is that it provides a projectile fire extinguishing bomb, wherein an opening is arranged at a position of the tail wing near the end cover, and then a tightening belt is used to pass through the openings on all the tail wing in sequence and tighten, thereby ensuring that the tail wing will not accidentally fall off during installation or falling.

[0010] In order to achieve at least one of the above advantages of the utility model, the utility model provides a projectile fire extinguishing bomb, including a bomb body, an end cover and an inner liner, the inner liner is arranged inside the bomb body in a plug-in manner, and explosives are arranged inside the inner liner; the bomb body includes a bomb barrel and a warhead and a tail arranged at both ends of the bomb barrel, an end cover is arranged at the end of the tail, a delayed detonation device is arranged inside the end cover, and the delayed detonation device is electrically connected to the explosives;

[0011] A number of grooves are arranged on the circular vertical surface of the cartridge, the grooves are in a 360-degree annular structure and are perpendicular to the extension direction of the cartridge;

[0012] Two handle structures for taking the fire extinguishing bombs are arranged on the tail of the bomb;

[0013] A plurality of tail fins for stabilizing the flight path of the projectile are arranged outside the end cover, a plurality of openings are arranged near the end cover, and a tightening belt is arranged outside the end cover, which passes through the openings on all the tail fins in sequence and is tightened.

[0014] According to an embodiment of the utility model, the handle structure includes a hollow groove, the hollow groove protrudes toward the inside of the cartridge, and a plurality of friction protrusions are arranged on a side of the inner side of the hollow groove close to the end cover.

[0015] According to an embodiment of the present utility model, the handle structure further includes a locking plate, one end of which is provided with a connecting edge integrally formed with the spring body and flexibly connected to the spring tail through the connecting edge.

[0016] According to one embodiment of the utility model, a locking female head is also provided on the tail of the spring, and the locking female head is a cylindrical blind hole, and a spherical groove with a diameter larger than the diameter of the blind hole is provided at the bottom; a locking male head is provided at the end of the locking plate, and the locking male head is a cylindrical short cylinder, and a spherical head with a diameter larger than the diameter of the short cylinder is provided at the head thereof, and the locking male head and the locking female head are connected by interference fit.

[0017] According to an embodiment of the utility model, a height difference is set on both sides of the locking female head, and the distance of the height difference is the same as the thickness of the locking plate.

[0018] According to one embodiment of the utility model, a port is provided at the end of the tail, the inner liner includes an inner liner barrel, one end of the inner liner barrel is connected to the inner liner head, the other end of the inner liner is connected to the limiting edge, the inner liner barrel and the port are plugged in an interference fit manner, the outer diameter of the limiting edge is the same as the outer diameter of the port and abuts against the edge of the port.

[0019] According to an embodiment of the utility model, explosives are arranged at the head of the inner liner, and a fixing ring for fixing the position of the explosives is arranged near the position of the explosives in the inner liner barrel, and the explosives are located at the center of gravity of the fire extinguishing bomb.

[0020] According to an embodiment of the utility model, the elastic body and the inner liner are both made of high-strength and easily degradable materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the projectile structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the inner tank structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the combined state of the projectile body and the inner liner of the utility model;

[0025] Figure 5 This is an enlarged schematic diagram of the handle structure of the utility model in a closed state;

[0026] Figure 6 This is an enlarged schematic diagram of the handle structure of the utility model in the open state;

[0027] In the attached drawings: 1. projectile body, 2. groove, 3. projectile head, 4. projectile tail, 5. tail wing, 6. end cover, 7. tightening belt, 8. pull pin, 9. handle structure, 10. inner tube, 11. inner head, 12. limiting edge, 91. empty groove, 92. friction protrusion, 93. locking female head, 94. locking plate, 95. connecting edge, 96. locking male head. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 ~Attached Figure 6 , the utility model is described in more detail.

[0029] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0030] Those skilled in the art should understand that, in the disclosure of the specification, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] The utility model provides a projected fire extinguishing bomb, comprising a bomb body 1, an end cover 6 and an inner shell, wherein the inner shell is arranged inside the bomb body 1 in a plug-in manner, and explosives are arranged inside the inner shell; the bomb body 1 comprises a bomb barrel and a warhead 3 and a tail 4 arranged at both ends of the bomb barrel, an end cover 6 is arranged at the end of the tail 4, a delayed detonation device is arranged inside the end cover 6, and the delayed detonation device is electrically connected to the explosives; a plurality of grooves 2 are arranged on the circular vertical surface of the bomb barrel, the grooves 2 are in a 360-degree annular structure and are perpendicular to the extension direction of the bomb barrel; two grooves 2 are arranged on the tail 4 A handle structure 9 for taking a fire extinguishing bomb; a plurality of tail wings 5 ​​for stabilizing the flight path of the bomb body 1 are arranged on the outside of the end cover 6, and a plurality of openings are arranged at positions of the tail wings 5 ​​near the end cover 6, and a tightening belt 7 is arranged on the outside of the end cover 6, and the tightening belt 7 passes through the openings on all the tail wings 5 ​​in sequence and is tightened; the handle structure 9 includes a hollow groove 91, and the hollow groove 91 protrudes toward the inside of the bomb barrel, and a plurality of friction protrusions 92 are arranged on the inner side surface of the hollow groove 91 near the end cover 6; the handle structure 9 also includes a locking plate 94, and one end of the locking plate 94 is provided with a friction protrusion 92 that is engaged with the bomb body 1 The integrally formed connecting edge 95 is flexibly connected to the spring tail 4 through the connecting edge 95; the spring tail 4 is also provided with a locking female head 93, which is a cylindrical blind hole, and a spherical groove with a diameter greater than the diameter of the blind hole is provided at the bottom; a locking male head 96 is provided at the end of the lock plate 94, and the locking male head 96 is a cylindrical short cylinder, and a spherical head with a diameter greater than the diameter of the short cylinder is provided at the head, and the locking male head 96 is connected to the locking female head 93 by an interference fit; a height difference is provided on both sides of the locking female head 93, and the distance of the height difference is the same as that of the lock plate 94 The thickness is the same; a port is provided at the end of the tail 4, the liner includes an inner liner tube 10, one end of the inner liner tube 10 is connected to an inner liner head 11, the other end of the inner liner is connected to a limited edge 12, the inner liner tube 10 and the port are plugged in an interference fit manner, the outer diameter of the limited edge 12 is the same as the outer diameter of the port and abuts against the edge of the port; explosives are provided at the inner liner head 11, and a fixing ring for fixing the position of the explosives is provided at the position of the inner liner tube 10 near the explosives, and the explosives are located at the center of gravity of the fire extinguishing bomb; the projectile body 1 and the inner liner are made of high-strength and easily degradable materials.

[0033] Embodiment 1 of the present utility model is as follows:

[0034] A projectile fire extinguishing bomb comprises a bomb body 1, an end cover 6 and an inner shell, wherein the inner shell is arranged inside the bomb body 1 in a plug-in manner, and explosives are arranged inside the inner shell; the bomb body 1 comprises a bomb barrel and a warhead 3 and a tail 4 arranged at both ends of the bomb barrel, an end cover 6 is arranged at the end of the tail 4, a delayed detonation device is arranged inside the end cover 6, and the delayed detonation device is electrically connected to the explosives;

[0035] Two grooves 2 are arranged on the circular vertical surface of the cartridge, and the grooves 2 are 360-degree annular structures and are perpendicular to the extension direction of the cartridge, so that the tightening belt 7 can be inserted therein, thereby ensuring that the tightening belt 7 can be tightly fixed to the fire extinguisher and will not slip off;

[0036] Two handle structures 9 for taking fire extinguishing bombs are arranged on the tail 4. The handle structure 9 also includes a locking plate 94. One end of the locking plate 94 is provided with a connecting edge 95 integrally formed with the bomb body 1 and flexibly connected to the tail 4 through the connecting edge 95. The connecting edge 95 is processed by heating and extrusion and has a certain elasticity, so that the locking plate 94 can be folded. Since the tail 4 is a truncated cone structure, the locking plate 94 is also an arc-shaped structure, so the connecting edge 95 is arranged as a multi-section structure. Specifically, the connecting edge 95 is a plurality of narrow connecting edges 95 arranged horizontally at a certain interval to connect the tail 4 to the locking plate 94. It has a certain elasticity and can be stretched when the locking plate 94 is flipped, thereby ensuring that it can be flipped up.

[0037] The tail 4 is also provided with a locking female head 93, which is a cylindrical blind hole, and a spherical groove with a diameter greater than the diameter of the blind hole is provided at the bottom thereof; a locking male head 96 is provided at the end of the locking plate 94, and the locking male head 96 is a cylindrical short cylinder, and a spherical head with a diameter greater than the diameter of the short cylinder is provided at the head thereof, and the locking male head 96 is connected to the locking female head 93 by an interference fit. When the locking male head 96 and the locking female head 93 are connected, the locking plate 94 can fit tightly on the tail 4, and at the same time, a height difference is provided on both sides of the locking female head 93, and the distance of the height difference is the same as the thickness of the locking plate 94, so when the locking plate 94 is closed, its outer surface is flush with the outer surface of the tail 4, ensuring the smoothness of the airflow;

[0038] Further preferably, the handle structure 9 includes a hollow groove 91, which protrudes toward the inside of the cartridge case, and a plurality of friction protrusions 92 are provided on the inner side surface of the hollow groove 91 close to the end cover 6, which can increase the friction between the fire extinguishing bomb shell and the human hand to prevent accidental slippage and damage to the fire extinguishing bomb.

[0039] A number of tail wings 5 ​​for stabilizing the flight path of the projectile 1 are arranged on the outside of the end cover 6. Two openings are arranged at the positions of the four tail wings 5 ​​near the end cover 6. A tightening belt 7 is arranged on the outside of the end cover 6. The tightening belt 7 is then used to pass through the openings on all the tail wings 5 ​​in turn and tighten them, thereby ensuring the stable installation of the tail wings 5 ​​and avoiding accidental falling off due to bumps during installation or airflow during falling.

[0040] According to one embodiment of the utility model, a port is provided at the end of the bullet tail 4, and the inner liner includes an inner liner tube 10, one end of the inner liner tube 10 is connected to an inner liner head 11, and the other end of the inner liner is connected to a limiting edge 12. The inner liner tube 10 is plugged into the port in an interference fit manner, and the outer diameter of the limiting edge 12 is the same as the outer diameter of the port and abuts against the edge of the port. Explosives are provided at the inner liner head 11, and a fixing ring for fixing the position of the explosives is provided at a position of the inner liner tube 10 near the explosives. The explosives are located at the center of gravity of the fire extinguishing bomb, which ensures the explosive decomposition effect, enables the fire extinguishing agent to diffuse to the maximum extent, and improves the fire extinguishing effect and the fire extinguishing range.

[0041] A pull pin 8 is provided on the end cover 6. After the fire extinguishing bomb is installed, the pull pin 8 is connected to the drone. When the fire extinguishing bomb is separated from the drone, the pull pin 8 will also be pulled open, so that the PLC control board starts countdown and detonates after a preset time or a preset height.

[0042] According to an embodiment of the utility model, the projectile body 1 and the inner liner are both made of high-strength and easily degradable materials, which can be degraded quickly after explosion and splitting without polluting the environment.

[0043] It should be noted that the terms "first, second and third" in the present invention are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0044] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A projectile fire extinguishing bomb, comprising a bomb body, an end cover and an inner liner, wherein the inner liner is arranged inside the bomb body in a plug-in manner, and explosives are arranged inside the inner liner; the bomb body comprises a bomb barrel and a warhead and a tail arranged at both ends of the bomb barrel, an end cover is arranged at the end of the tail, a delayed detonation device is arranged inside the end cover, and the delayed detonation device is electrically connected to the explosives; Features: A plurality of grooves are arranged on the circular vertical surface of the cartridge, and the grooves are in a 360-degree annular structure and are perpendicular to the extension direction of the cartridge; Two handle structures for taking the fire extinguishing bomb are arranged on the tail of the bomb; The end cover is provided with a plurality of tail fins for stabilizing the flight path of the projectile, and a plurality of openings are provided at positions of the tail fins near the end cover. The end cover is provided with a tightening belt, which passes through the openings on all the tail fins in sequence and is tightened.

2. The projectile fire extinguishing bomb according to claim 1, Features: The handle structure comprises a hollow groove, the hollow groove protrudes toward the inside of the cartridge, and a plurality of friction protrusions are arranged on a side of the inner side of the hollow groove close to the end cover.

3. The projectile fire extinguishing bomb according to claim 2, Features: The handle structure also includes a locking plate, one end of which is provided with a connecting edge integrally formed with the spring body and flexibly connected to the spring tail through the connecting edge.

4. The projectile fire extinguishing bomb according to claim 3, Features: A locking female head is also provided on the tail of the spring, and the locking female head is a cylindrical blind hole, and a spherical groove with a diameter larger than the diameter of the blind hole is provided at the bottom; a locking male head is provided at the end of the locking plate, and the locking male head is a cylindrical short cylinder, and a spherical head with a diameter larger than the diameter of the short cylinder is provided at the head thereof, and the locking male head is connected to the locking female head by interference fit.

5. The projectile fire extinguishing bomb according to claim 4, Features: A height difference is arranged on both sides of the locking female head, and the distance of the height difference is the same as the thickness of the locking plate.

6. The projectile fire extinguishing bomb according to claim 1, Features: A port is provided at the end of the tail, the inner liner includes an inner liner barrel, one end of the inner liner barrel is connected to an inner liner head, the other end of the inner liner is connected to a limiting edge, the inner liner barrel and the port are plugged in an interference fit manner, the outer diameter of the limiting edge is the same as the outer diameter of the port and abuts against the edge of the port.

7. The projectile fire extinguishing bomb according to claim 6, Features: Explosives are arranged at the head of the inner liner, and a fixing ring for fixing the position of the explosives is arranged at a position of the inner liner barrel close to the explosives, and the explosives are located at the center of gravity of the fire extinguishing bomb.

8. The projectile fire extinguishing bomb according to claim 1, Features: The projectile body and the inner liner are both made of high-strength and easily degradable materials.

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