Auxiliary dispersing device and method for sub-munition of fire extinguishing

Abstract

The application belongs to the technical field of sub-munition, and particularly relates to an auxiliary dispensing device and method of sub-munition for fire extinguishing, which comprises a central pipe and a gas generating mechanism; the gas generating mechanism comprises a gas chamber partition plate, a gas cylinder installation module and a compressed gas cylinder which are sequentially arranged, and further comprises a bottle opening mechanism for opening the compressed gas cylinder; the outer wall of the gas chamber partition plate is sealingly arranged on the inner wall of the central pipe, a sealing structure is further arranged in the central pipe, and the gas chamber partition plate, the sealing structure and the inner wall of the central pipe form a gas chamber; the bottle opening of the compressed gas cylinder is located in the gas chamber, and a plurality of through holes are arranged on the inner wall of the gas chamber interval of the central pipe; the application can be recycled and reused, is green and environmentally friendly, has low storage and maintenance requirements, can better adapt to various complex environmental conditions in the air, has a lower failure rate, and can be conveniently partitioned and adjust the air pressure of different positions when multiple gas generating mechanisms are arranged in the central pipe.

Description

Technical Field

[0001] This invention belongs to the field of cluster munition technology, specifically relating to an auxiliary dispensing device and method for fire extinguishing cluster munitions. Background Technology

[0002] Cluster munitions typically contain dozens or hundreds of submunitions within a central submunition. A connecting rod at the center of the central submunition usually serves as a supporting framework. A corresponding dispersal device is also included to facilitate the dispersal of the submunitions. The configuration of this device is closely related to the dispersal technology and its effectiveness. The submunition dispersal technology is undoubtedly one of the key technologies of the entire cluster munition system. The performance of the dispersal system directly determines the dispersion area and density of the submunitions in the target area, affecting the final dispersal effect; this is a crucial indicator of the cluster munition.

[0003] To achieve an ideal dispersion pattern for submunitions within the target area, ensuring a reasonable dispersion range, uniform dispersion density, and safe separation between submunitions or between submunitions and the parent munition, thus maximizing the effectiveness of the submunitions, appropriate dispersion techniques must be selected. Currently, the dispersion methods for cluster munitions are mainly divided into:

[0004] 1. Mechanical separation and scattering: Mechanical separation and scattering refers to using the bullet's own gravity, springs, or guide rod springs to give the bullet the power to separate from the parent bullet.

[0005] 2. Inertial kinetic energy ejection: Inertial kinetic energy ejection relies on the inertia of the parent projectile's motion or the centrifugal force of its rotation to eject the projectile. This ejection method requires the parent projectile to have a sufficiently large rotational angular velocity during ejection.

[0006] 3. Piston-type dispersal: Piston-type dispersal technology is a dispersal method that uses the pressure of gunpowder gases generated by the combustion of gunpowder in the combustion chamber to drive the piston and the bullet.

[0007] 4. Explosive scattering, center-detonating tube scattering is a scattering method that relies on the high-density gunpowder (explosive) in the center of the mother bomb to provide kinetic energy to drive the bullet's movement.

[0008] 5. Gas-filled capsule dispersal: Gas-filled capsule dispersal technology mainly uses gas-filled capsules to prolong the time that the propellant gases act on the bullet, so as to achieve the purpose of smooth loading of the bullet.

[0009] Patent CN113390304B, entitled "An Adjustable Speed ​​Dispersion Device," discloses an adjustable speed dispersion device, including a projectile, ignition powder, ignition tube, submunitions, dispersion powder, tubular powder bag, central tube, and skin. By restricting the free flow of the combustion gases through a speed-regulating baffle, the pressure distribution of the flow field is altered, thereby adjusting the dispersion speed and attitude of the submunitions to achieve a non-uniform dispersion effect. However, this method has a complex mechanical structure, requires the use of gunpowder and explosives, and its dispersion transposition and central support tube structures are separate, resulting in a less compact structure. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide an auxiliary dispensing device and method for fire extinguishing cluster bombs that are safe, recyclable, highly adaptable and have adjustable dispensing zones.

[0011] The present invention provides an auxiliary dispensing device for fire extinguishing cluster bombs, comprising a central tube and a gas generating mechanism;

[0012] The gas generating mechanism includes a gas chamber partition plate, a gas cylinder installation module and a compressed gas cylinder arranged in sequence, and also includes a bottle opening mechanism for opening the compressed gas cylinder.

[0013] The outer wall of the air chamber partition plate is sealed on the inner wall of the central tube. A sealing structure is also provided inside the central tube. The air chamber partition plate, the sealing structure and the inner wall of the central tube enclose an air chamber. The mouth of the compressed gas cylinder is located inside the air chamber, and several through holes are provided on the inner wall of the central tube located in the air chamber area.

[0014] Furthermore, a guide rod is provided parallel to its axis inside the central tube, and mating holes that cooperate with the guide rod are provided on both the gas chamber partition plate and the gas cylinder mounting module.

[0015] Furthermore, multiple gas generating mechanisms are arranged inside the central tube, and the gas chamber partition plates in the gas generating mechanisms serve as the sealing structures required by adjacent gas generating mechanisms.

[0016] Furthermore, multiple gas generating mechanisms are arranged inside the central tube, and the spacing between two adjacent gas generating mechanisms is adjustable, and / or the capacity of the compressed gas cylinder on each gas generating mechanism is controllable.

[0017] This auxiliary dispensing device also includes a main control module connected to the bottle opening mechanism in multiple gas generating mechanisms. The main control module is used to individually control the opening time of the bottle opening mechanism on multiple gas generating mechanisms.

[0018] Furthermore, the gas cylinder installation module includes a connecting ring fixedly disposed at one end of the gas chamber partition plate and a gas cylinder installation plate disposed at the end of the connecting ring away from the gas chamber partition plate. The gas cylinder installation plate, the gas chamber partition plate, and the connecting ring enclose a cylinder opening mechanism installation cavity, and the cylinder opening mechanism is disposed within the cylinder opening mechanism installation cavity.

[0019] Furthermore, the mouth of the compressed gas cylinder is fixed to the gas cylinder mounting plate, and the mouth of the compressed gas cylinder extends into the mounting cavity of the bottle opening mechanism. The connecting ring and / or the gas cylinder mounting plate is provided with an air outlet hole that penetrates the mounting cavity of the bottle opening mechanism.

[0020] Furthermore, the bottle opening mechanism includes a piercing device, an elastic element, and a controller. The output of the controller acts on the piercing device, causing the piercing device to compress the elastic element and move away from the mouth of the compressed gas cylinder. When the controller is activated, the piercing device is released from its restraint, and the piercing device moves under the restoring force of the elastic element and pierces the mouth of the compressed gas cylinder.

[0021] Furthermore, the puncturer includes a ring plate and a puncture tip disposed on the ring plate. The outer wall of the ring plate is slidably engaged with the inner wall of the connecting ring. The controller includes a motor fixedly disposed on the air chamber partition plate and a locking arm disposed on the output end of the motor. The controller is disposed in the ring space of the ring plate. The motor can drive the locking arm to restrict the ring plate, and can also drive the locking arm to rotate into the ring plate to release the restriction of the ring plate.

[0022] Furthermore, multiple sets of compressed gas cylinders and puncture tips are provided.

[0023] Furthermore, it also includes a projectile casing, with the central tube disposed inside the projectile casing, and a placement cavity for placing submunitions is provided between the inner wall of the projectile casing and the outer wall of the central tube.

[0024] The present invention also provides an auxiliary dispensing method for fire extinguishing cluster munitions, which, using the aforementioned auxiliary dispensing device for fire extinguishing cluster munitions, includes the following steps:

[0025] After the fire extinguishing cluster munitions reach the designated position, the opening mechanism controls the compressed gas cylinder to open, generating high-pressure gas in the gas chamber of the central tube. The high-pressure gas flows out at high speed through the through hole, and after flowing out of the through hole, it blows the submunitions located on the outer wall of the central tube to scatter.

[0026] The beneficial effects of this invention are that the auxiliary dispersing device for fire extinguishing submunitions provided by this invention utilizes a gas generating mechanism to generate high-pressure gas in the gas chamber, and the high-speed airflow escaping from the through hole propels the submunitions to disperse, thus having the following effects:

[0027] 1. Unlike conventional airbag-type dispersal methods, which involve inflating airbags to propel submunitions for dispersal, the present invention requires less gas, does not compress submunitions, and thus does not damage them, improving the effectiveness of the cluster munition. At the same time, the entire structure remains undamaged, can be recycled and reused, and is environmentally friendly.

[0028] 2. This invention does not contain any pyrotechnic materials, poses no danger in storage or use, has low storage and maintenance requirements, and is suitable for civilian products such as fire extinguishing bombs; moreover, it does not generate high temperatures during use, and will not damage the central tube or reduce the supporting strength of the central tube;

[0029] 3. This application is better able to adapt to various complex aerial environmental conditions and has a lower failure rate;

[0030] 4. When multiple gas generating mechanisms are set in the central tube, the gas chamber partition plate in the adjacent gas generating mechanism serves as the sealing structure required for another gas chamber partition plate, which can further simplify the system structure. In addition, setting multiple gas generating mechanisms can also facilitate zoning and adjust the gas pressure at different locations to meet the different thrust requirements of each part. Attached Figure Description

[0031] Appendix Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Appendix Figure 2 This is a schematic diagram of the gas generating mechanism in this invention;

[0033] Appendix Figure 3 This is a rear view of the gas generating mechanism in this invention;

[0034] Appendix Figure 4 for Figure 3 Sectional view along the middle AA direction;

[0035] Appendix Figure 5 for Figure 3 Sectional view along the BB direction;

[0036] Appendix Figure 6 This is a schematic diagram of the first angle explosion of the gas generating mechanism in this invention;

[0037] Appendix Figure 7 This is a schematic diagram of the second angle explosion of the gas generating mechanism in this invention;

[0038] Appendix Figure 8 This is a schematic diagram of the installation of the projectile shell, central tube, and submunition in this invention;

[0039] Appendix Figure 9 This is a schematic diagram of the neutron munition deployment of the present invention;

[0040] Appendix Figure 10This is the overall circuit connection diagram in this invention;

[0041] Appendix Figure 11 This is a partial circuit connection diagram of the present invention.

[0042] In the diagram, 1-Gas generating mechanism; 11-Gas chamber partition plate; 12-Gas cylinder mounting module; 121-Connecting ring; 1211-Guide protrusion; 122-Gas cylinder mounting plate; 123-Opening mechanism mounting cavity; 124-Gas outlet; 13-Compressed gas cylinder; 14-Opening mechanism; 141-Piercing device; 1411-Ring plate; 1412-Piercing tip; 1413-Guide groove; 142-Elastic element; 143-Controller; 1431-Motor; 1432-Locking arm; 15-Matching hole; 16-Matching sleeve; 17-Circuit board; 2-Guide rod; 3-Central tube; 31-Through hole; 32-Gas chamber; 4-Placement cavity; 5-Projectile shell; 6-Submunition. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0045] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0048] As attached Figure 1-11 As shown, the present invention provides an auxiliary dispensing device for fire extinguishing cluster bombs, including a central tube 3 and a gas generating mechanism 1;

[0049] The gas generating mechanism 1 includes a gas chamber partition plate 11, a gas cylinder mounting module 12, and a compressed gas cylinder 13 arranged in sequence. The gas chamber partition plate 11 is used to fix the gas generating mechanism 1 inside the central tube 3 on one hand, and to isolate the central tube 3 from the gas chamber 32 on the other hand. The gas cylinder mounting module 12 is set on the gas chamber partition plate 11 and is used to install the compressed gas cylinder 13. The compressed gas cylinder 13 is used to release gas to generate high pressure in the gas chamber 32. It also includes a bottle opening mechanism 14 for opening the compressed gas cylinder 13, that is, after the fire extinguishing submunition reaches the set position, the bottle opening mechanism 14 opens the compressed gas cylinder 13 to assist in the release of the submunition 6.

[0050] The outer wall of the gas chamber partition plate 11 is sealed on the inner wall of the central tube 3. A sealing structure is also provided inside the central tube 3. The gas chamber partition plate 11, the sealing structure, and the inner wall of the central tube 3 enclose a gas chamber 32. The sealing structure can be the end wall of the central tube 3. When multiple gas generating mechanisms 1 are provided, the sealing structure can also be the gas chamber partition plate 11 of the adjacent gas generating mechanism 1. The mouth of the compressed gas cylinder 13 is located inside the gas chamber 32, and the inner wall of the central tube 3 within the gas chamber 32 is provided with several... After the fire extinguishing submunitions reach the set position, the compressed gas cylinder 13 is opened through the through hole 31. The compressed gas cylinder 13 releases gas, which generates high pressure in the gas chamber 32. At the same time, the high-pressure gas escapes at high speed from the through hole 31. Since the submunitions 6 are arranged outside the central tube 3, the airflow flowing out of the through hole 31 at high speed will impact the submunitions 6 and move them away from the central axis of the central tube 3. The submunitions 6 are pushed by the airflow from the through hole 31 and generate lateral velocity after the shell 5 of the projectile is opened, thus dispersing them and completing the deployment of the submunitions 6.

[0051] The auxiliary dispersing device for fire extinguishing submunitions provided by the present invention utilizes a gas generating mechanism 1 to generate high-pressure gas in a gas chamber 32, and a high-speed airflow escaping from a through-hole 31 propels the submunitions 6 to disperse, achieving the following effects:

[0052] 1. Unlike conventional airbag-type dispersal methods, which involve inflating airbags to propel the submunitions 6 for dispersal, the present invention requires less gas, does not compress the submunitions 6, and thus does not damage them, improving the effectiveness of the cluster munition. At the same time, the entire structure remains undamaged, can be recycled and reused, and is environmentally friendly.

[0053] 2. This invention does not contain any pyrotechnic materials, poses no danger in storage or use, has low storage and maintenance requirements, and is suitable for civilian products such as fire extinguishing bombs; moreover, it does not generate high temperatures during use, and will not damage the central tube 3 or reduce the supporting strength of the central tube 3;

[0054] 3. This application is better able to adapt to various complex aerial environmental conditions and has a lower failure rate;

[0055] 4. When multiple gas generating mechanisms 1 are set in the central tube 3, the gas chamber partition plate 11 in the adjacent gas generating mechanism 1 serves as the sealing structure required for another gas chamber partition plate 11, which can further simplify the system structure. In addition, setting multiple gas generating mechanisms 1 can also facilitate partitioning and adjust the gas pressure at different locations to meet the different thrust requirements of each part.

[0056] In one embodiment, a guide rod 2 is arranged parallel to the axis of the central tube 3. Both the gas chamber partition plate 11 and the gas cylinder mounting module 12 are provided with mating holes 15 that cooperate with the guide rod 2. In this embodiment, the installation difficulty of the gas generating mechanism 1 and the central tube 3 is greatly simplified, as is the coaxiality of the gas chamber partition plate 11 and the central tube 3. In this embodiment, a sealing ring is provided between the outer wall of the gas chamber partition plate 11 and the inner wall of the central tube 3. A sealing ring can also be provided between the mating hole 15 and the guide rod 2.

[0057] Specifically, the guide rod 2 is preferably positioned at the axial center of the central tube 3, and the mating hole 15 is slidably fitted onto the guide rod 2. This facilitates adjustment of the axial position of the gas generating mechanism 1 within the central tube 3, allowing for adjustment of the size of different gas chambers 32. Furthermore, it enables adjustment of the gas pressure at various locations to meet the different thrust requirements of different parts. In a preferred embodiment, the guide rod 2 is a screw, and the mating hole 15 on the gas generating mechanism 1 is a threaded hole. That is, the gas generating mechanism 1 and the guide rod 2 are directly screwed together, simplifying the connection and providing self-locking after installation, thus locking the axial position.

[0058] In one embodiment, the gas chamber partition plate 11 or the gas cylinder mounting module 12 is provided with a locking structure for locking the guide rod 2 in position. In a specific embodiment, the locking structure includes a mating sleeve 16 stretched along the axis at the center of the gas chamber partition plate 11, and a limiting screw threaded on the mating sleeve 16. The mating sleeve 16 can not only be used to install the limiting screw, but also extend the contact area between the mating hole 15 and the guide rod 2, thereby improving the sealing performance of the gas chamber partition plate 11 and the central tube 3.

[0059] More specifically, the side of the fitting sleeve 16 facing away from the gas cylinder installation module 12 can be used to set the circuit board 17. The circuit board 17 has a through hole in the middle. The circuit board 17 is set on the fitting sleeve 16, and the circuit board 17 and the outer side of the gas chamber partition plate 11 have through holes. The gas cylinder installation module 12 has a countersunk hole. The circuit board 17, the gas chamber partition plate 11 and the gas cylinder installation module 12 are fixedly connected to each other by bolts set on the through holes and countersunk holes, simplifying the connection difficulty of the three. The circuit board 17 is used for airflow control to control the action of the bottle opening mechanism 14. Specifically, the front end of the circuit board 17 can receive the venting signal transmitted from the flight control module. After signal processing, the signal is transmitted to the bottle opening mechanism 14 through the communication through hole on the air chamber partition plate 11 to release the puncturer 141. At the same time, at the rear end of the circuit board 17, the venting signal of the flight control module is transmitted to another airflow control circuit module (another circuit board 17) through the communication hole. At the signal transmission port at the rear end of the circuit board 17, there is a sealing gasket corresponding to the communication through hole on the air chamber partition plate 11, so that a seal is formed between the rear end face and the air chamber partition plate 11.

[0060] In one specific embodiment, the circuit relationship of a single gas generator is as follows: Figure 10 As shown, the circuit board 17 is electrically connected to the missile power supply and the flight control module respectively. The missile power supply is used to supply power to the circuit board 17 and the motor 1431, and the flight control module is used to send control signals to the circuit board 17. The circuit board 17 controls the motor 1431.

[0061] The circuit relationships of multiple gas generating devices are as follows: Figure 11 As shown, multiple gas generating devices are preferably connected in parallel with the missile's power supply and flight control module to ensure their respective safety.

[0062] refer to Figure 1 In one embodiment, multiple gas generating mechanisms 1 are arranged inside the central tube 3. The gas chamber partition plate 11 in the gas generating mechanism 1 is the sealing structure required by the adjacent gas generating mechanism 1. In this embodiment, the gas chamber partition plate 11 in the adjacent gas generating mechanism 1 serves as the sealing structure required by another gas chamber partition plate 11, which can further simplify the system structure.

[0063] In one embodiment, multiple gas generating mechanisms 1 are arranged in the central tube 3, and the spacing between two adjacent gas generating mechanisms 1 is adjustable, and / or the capacity of the compressed gas cylinder 13 on each gas generating mechanism 1 is controllable, that is, the gas generating mechanisms 1 are arranged in a modular manner in the central tube 3.

[0064] This auxiliary dispensing device also includes a main control module connected to the bottle opening mechanism 14 in multiple gas generating mechanisms 1. The main control module is used to individually control the opening time of the bottle opening mechanism 14 on multiple gas generating mechanisms 1.

[0065] In this embodiment, setting multiple gas generating mechanisms 1 can also facilitate partitioning and adjust the gas pressure at different positions of the projectile body to meet the different thrust requirements of each part. In addition, the gas pressure at different positions is preferably adjusted by adjusting the distance between two adjacent gas generating mechanisms 1, and then by adjusting the size of the gas chamber 32. This can make the structure and specifications of multiple gas generating mechanisms 1 consistent, simplifying the production and installation difficulty. Alternatively, the gas pressure at different positions can also be adjusted by adjusting the specifications of the compressed gas cylinder 13 in the corresponding gas generating mechanism 1 and the opening flow rate of the opening mechanism 14.

[0066] Specifically, in this embodiment, multiple gas generating mechanisms 1 can be modularly added or removed quickly to adjust the amount of compressed gas used in each compressed gas module. That is, the gas generating mechanism 1 consists of the same main control module and modular small compressed gas cylinders 13, which can be modularly added or removed quickly to adjust the amount of compressed gas in each gas generating mechanism 1. Simultaneously, there are adjustable guide rods 2 connecting each gas generating mechanism 1, and the size of the gas chamber 32 can be adjusted by the spacing between each gas generating mechanism 1 on the guide rods 2. Furthermore, there are selectively adjustable gas chamber partitions 11 between each gas generating mechanism 1 to reduce the mutual influence of compressed gas between different gas chambers 32. The gas pressure of each gas chamber 32 can be adjusted by placing compressed gas cylinders 13 in different positions and using compressed gas cylinders 13 with different amounts. This allows submunitions 6 to have different deployment speeds under the same mother bomb. At the same time, by controlling the release time of compressed gas in the gas chambers 31 of different fuselage sections through the main control module, the deployment speed of submunitions 6 in each fuselage section can also be different, achieving different deployment effects for submunitions 6 in different fuselage sections.

[0067] In one embodiment, the gas cylinder mounting module 12 includes a connecting ring 121 fixedly disposed at one end of the gas chamber partition plate 11 and a gas cylinder mounting plate 122 disposed at the end of the connecting ring 121 facing away from the gas chamber partition plate 11. The gas cylinder mounting plate 122, the gas chamber partition plate 11, and the connecting ring 121 enclose a bottle opening mechanism mounting cavity 123. The bottle opening mechanism 14 is disposed within the bottle opening mechanism mounting cavity 123. In this embodiment, the bottle opening mechanism 14 can be disposed within the bottle opening mechanism mounting cavity 123 to avoid accidental activation of the bottle opening mechanism 14 and premature bottle opening during the transportation and installation of the gas generating mechanism 1, while also improving the overall compactness of the structure. In addition, in this embodiment, the mating hole 15 on the gas cylinder mounting module 12 is disposed on the gas cylinder mounting plate 122, which can further improve the mating stability between the gas generating mechanism 1 and the guide rod 2, and improve the coaxiality between the gas generating mechanism 1 and the central tube 3.

[0068] In one embodiment, the mouth of the compressed gas cylinder 13 is fixed to the gas cylinder mounting plate 122, and the mouth of the compressed gas cylinder 13 extends into the cylinder opening mechanism mounting cavity 123. In this embodiment, the mouth of the compressed gas cylinder 13 can be avoided during the transportation and installation of the gas generating mechanism 1, thus improving the reliability of the equipment. In addition, the connecting ring 121 and / or the gas cylinder mounting plate 122 are provided with an outlet hole 124 that penetrates the cylinder opening mechanism mounting cavity 123, which is used to discharge gas from the cylinder opening mechanism mounting cavity 123 into the gas chamber 32. It should be noted that the outer diameter of the connecting ring 121 needs to be smaller than the inner wall of the central tube 3 to ensure smooth flow of the through hole 31. Preferably, the gas cylinder mounting plate 122 is provided with a threaded through hole, and an external thread is provided at the mouth of the compressed gas cylinder 13, so that the compressed gas cylinder 13 is threadedly connected to the gas cylinder mounting plate 122, which greatly reduces the installation difficulty of the compressed gas cylinder 13.

[0069] In one embodiment, the bottle opening mechanism 14 includes a piercing device 141, an elastic element 142, and a controller 143. The output of the controller 143 acts on the piercing device 141, causing the piercing device 141 to compress the elastic element 142 and move away from the mouth of the compressed gas cylinder 13. When the controller 143 is activated, the piercing device 141 is released from its restraint. The piercing device 141 moves under the restoring force of the elastic element 142 and pierces the mouth of the compressed gas cylinder 13. In this embodiment, the piercing device 141 is used to pierce the mouth of the compressed gas cylinder 13, making the bottle opening operation reliable. When cluster munitions are used in fire extinguishing scenarios, the success rate of cluster munitions can be improved.

[0070] In one embodiment, the piercing device 141 includes a ring plate 1411 and a piercing tip 1412 disposed on the ring plate 1411. The outer wall of the ring plate 1411 is slidably engaged with the inner wall of the connecting ring 121. Specifically, the outer wall of the ring plate 1411 is axially provided with a plurality of guide grooves 1413, while the inner wall of the connecting ring 121 is circumferentially provided with a plurality of guide protrusions 1211. The guide grooves 1413 move linearly along the guide protrusions 1211, so that the ring plate 1411 can only move along the axial direction of the connecting ring 121, thereby improving the piercing success rate. The controller 143 includes... The device includes a motor 1431 fixedly mounted on the air chamber partition plate 11 and a locking arm 1432 mounted on the output end of the motor 1431. The controller 143 is located in the inner space of the ring plate 1411. The motor 1431 can drive the locking arm 1432 to restrict the ring plate 1411, and can also drive the locking arm 1432 to rotate into the inner space of the ring plate 1411 to release the restriction of the ring plate 1411. In this embodiment, the elastic element 142 is a compression spring, which is located between the inner diameter of the ring plate 1411 and the inner diameter of the connecting ring 121, and does not affect the installation of the controller 143. In this embodiment, the ring plate 1411 can compress the elastic element 142 into the space between the locking arm 1432 and the air chamber partition plate 11, and the locking arm 1432 can be driven by the motor 1431 to rotate outward and abut against the ring plate 1411. When it is necessary to puncture the compressed gas cylinder 13, the motor 1431 drives the locking arm 1432 to rotate within the inner diameter range of the ring plate 1411, the ring plate 1411 is released from restriction, the elastic element 142 drives the ring plate 1411 to move towards the compressed gas cylinder 13, and finally the puncture tip 1412 punctures the mouth of the compressed gas cylinder 13. The puncture tip 1412 can be provided with air permeability to increase the gas flow rate after puncture.

[0071] In one embodiment, multiple sets of compressed gas cylinders 13 and puncture tips 1412 are provided to increase the gas volume, thereby increasing the speed of the airflow from the through hole 31 and ultimately improving the scattering effect of the submunition 6.

[0072] In one embodiment, the auxiliary dispensing device for fire extinguishing submunitions further includes a submunition shell 5, with the central tube 3 disposed inside the submunition shell 5, and a placement cavity 4 for placing submunitions 6 between the inner wall of the submunition shell 5 and the outer wall of the central tube 3.

[0073] The outer shell 5 can be a multi-lobed structure, such as the segmented shell structure in the precision-guided fire extinguishing projectile and its guidance method that can carry submunitions in Chinese patent CN202211703046.0, or it can be an outer shell structure with an opening, etc.

[0074] The present invention also provides an auxiliary dispensing method for fire extinguishing cluster munitions, characterized in that, using the aforementioned auxiliary dispensing device for fire extinguishing cluster munitions, the method includes the following steps:

[0075] After the fire extinguishing submunitions reach the set position, the bottle opening mechanism 14 controls the compressed gas cylinder 13 to open, and high-pressure gas is generated in the gas chamber 32 of the central tube 3. The high-pressure gas flows out at high speed through the through hole 31, and after flowing out of the through hole 31, it blows the submunitions 6 located on the outer wall of the central tube 3 to scatter.

[0076] Specifically, refer to Figure 11 The cluster munition is equipped with a flight control module, which includes an inertial navigation module, a guidance control module, a main control module, and other control modules or devices. The inertial navigation module can obtain flight attitude, position, velocity, and acceleration information and transmit it to the main control module in real time. The main control module can calculate the flight state of the cluster munition in real time and determine whether the cluster munition meets the deflation conditions based on the information from the guidance control module and the inertial navigation module. If the deflation conditions are met, the signal is transmitted to the designated circuit board 17. After receiving the deflation signal, the designated circuit board 17 processes the signal and implements the deflation action.

[0077] When the cluster munition reaches the designated position and opens its hatch, the outer casing 5 of the munition opens or the hatch is opened. When the flight control module of the cluster munition determines that the cluster munition meets the conditions for dispersing the submunitions 6, the flight control module sends a signal to the circuit board 17. The circuit board 17 controls the motor 1431 to rotate, the locking arm 1432 releases the restriction on the ring plate 1411, and the elastic element 142 drives the ring plate 1411 and the piercing tip 1412 to move towards the mouth of the compressed gas cylinder 13 until the mouth of the compressed gas cylinder 13 is pierced. The compressed gas cylinder 13 then... The gas flows out, filling the cavity 123 and the gas chamber 32 of the bottle opening mechanism with high-pressure gas. At the same time, the high-pressure gas escapes at high speed from the through hole 31 of the gas chamber 32 of the central tube 3. Since the submunitions 6 are arranged on the outside of the central tube 3, the airflow flowing out at high speed from the through hole 31 will impact the submunitions 6 and move them away from the central axis of the central tube 3. The submunitions 6 are pushed by the airflow from the through hole 31 and generate lateral velocity after the shell 5 of the projectile is opened, thus dispersing them and completing the dispersal of the submunitions 6.

[0078] In addition, the auxiliary dispersing device for the fire extinguishing submunitions also includes several submunitions 6 arranged in the cavity 4. The front end of each submunition 6 is aligned with the through hole 31. In this embodiment, the front end of the submunition 6 is aligned with the through hole 31, that is, the position of the through hole 31 corresponds to the near front end of the submunition 6. The airflow from the through hole 31 causes the submunition 6 to deflect, so that the head of the submunition 6 moves away from the outer wall of the central tube 3 first, and then the tail follows. Finally, the axis of the submunition 6 forms a certain angle with the axis of the central tube 3. Subsequently, the force of a portion of the airflow along the central axis outside the central tube 3 causes the submunition 6 to move away from the central axis, further increasing the dispersal degree of the submunition 6 (the contact area between the airflow along the central axis outside the central tube 3 and the submunition 6 is larger). This makes the submunition 6 form an ideal dispersion state in the target area, which not only ensures the safe and reliable separation between submunitions and between submunitions and the parent submunition, but also achieves a reasonable dispersion range, uniform dispersion density, and maximizes the effect of the submunition 6.

[0079] The compressed gas cylinder 13 contains compressed gases such as nitrogen / carbon dioxide, and the mouth of the compressed gas cylinder 13 is made of easily puncturable sealing materials such as thin metal sheets or plastic sealing sheets.

[0080] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. An auxiliary dispensing device for fire extinguishing cluster munitions, characterized in that, It includes a central tube (3) and a gas generating mechanism (1); The gas generating mechanism (1) includes a gas chamber partition plate (11), a gas cylinder installation module (12) and a compressed gas cylinder (13) arranged in sequence, and also includes a bottle opening mechanism (14) for opening the compressed gas cylinder (13). The outer wall of the air chamber partition plate (11) is sealed on the inner wall of the central tube (3). A sealing structure is also provided inside the central tube (3). The air chamber partition plate (11), the sealing structure and the inner wall of the central tube (3) enclose an air chamber (32). The mouth of the compressed gas cylinder (13) is located inside the air chamber (32). Several through holes (31) are provided on the inner wall of the central tube (3) in the section of the air chamber (32). A guide rod (2) is provided inside the central tube (3) parallel to its axis. Both the gas chamber partition plate (11) and the gas cylinder installation module (12) are provided with mating holes (15) that cooperate with the guide rod (2). Multiple gas generating mechanisms (1) are arranged inside the central tube (3), and the spacing between two adjacent gas generating mechanisms (1) is adjustable; It also includes a main control module connected to the bottle opening mechanism (14) in multiple gas generating mechanisms (1), the main control module being used to individually control the opening time of the bottle opening mechanism (14) on multiple gas generating mechanisms (1); The gas generating mechanism (1) and the guide rod (2) are directly screwed together and self-locked after installation, providing axial position locking for the gas generating mechanism (1); or, the gas chamber partition plate (11) or the gas cylinder installation module (12) is provided with a locking structure for position locking with the guide rod (2).

2. The auxiliary dispensing device for fire extinguishing cluster bombs as described in claim 1, characterized in that, The gas generating mechanism (1) has multiple units arranged inside the central tube (3), and the gas chamber partition plate (11) in the gas generating mechanism is the sealing structure required by the adjacent gas generating mechanism (1).

3. The auxiliary dispensing device for fire extinguishing cluster munitions as described in claim 1, characterized in that, The gas cylinder installation module (12) includes a connecting ring (121) fixedly disposed at one end of the gas chamber partition plate (11) and a gas cylinder installation plate (122) disposed at the end of the connecting ring (121) away from the gas chamber partition plate (11). The gas cylinder installation plate (122), the gas chamber partition plate (11) and the connecting ring (121) enclose a cylinder opening mechanism installation cavity (123). The cylinder opening mechanism (14) is disposed in the cylinder opening mechanism installation cavity (123).

4. The auxiliary dispensing device for fire extinguishing cluster munitions as described in claim 3, characterized in that, The mouth of the compressed gas cylinder (13) is fixed to the gas cylinder mounting plate (122), and the mouth of the compressed gas cylinder (13) extends into the bottle opening mechanism mounting cavity (123). The connecting ring (121) and / or the gas cylinder mounting plate (122) are provided with an air outlet (124) that penetrates the bottle opening mechanism mounting cavity (123).

5. The auxiliary dispensing device for fire extinguishing cluster munitions as described in claim 4, characterized in that, The bottle opening mechanism (14) includes a piercing device (141), an elastic element (142), and a controller (143). The output end of the controller (143) acts on the piercing device (141), causing the piercing device (141) to compress the elastic element (142) and move away from the bottle opening of the compressed gas cylinder (13). When the controller (143) is activated, the piercing device (141) is released from its restriction. The piercing device (141) moves under the restoring force of the elastic element (142) and pierces the bottle opening of the compressed gas cylinder (13).

6. The auxiliary dispensing device for fire extinguishing cluster munitions as described in claim 5, characterized in that, The piercing device (141) includes a ring plate (1411) and a piercing tip (1412) disposed on the ring plate (1411). The outer wall of the ring plate (1411) is slidably engaged with the inner wall of the connecting ring (121). The controller (143) includes a motor (1431) fixedly disposed on the air chamber partition plate (11) and a locking arm (1432) disposed on the output end of the motor (1431). The controller (143) is disposed in the ring space of the ring plate (1411). The motor (1431) can drive the locking arm (1432) to restrict the ring plate (1411) and can also drive the locking arm (1432) to rotate to the ring inside the ring plate (1411) to release the restriction of the ring plate (1411).

7. The auxiliary dispensing device for fire extinguishing cluster munitions as described in claim 6, characterized in that, Multiple sets of compressed gas cylinders (13) and puncture tips (1412) are provided.

8. The auxiliary dispensing device for fire extinguishing cluster munitions as described in any one of claims 1-7, characterized in that, It also includes a projectile casing (5), the central tube (3) is disposed inside the projectile casing (5), and there is a placement cavity (4) between the inner wall of the projectile casing (5) and the outer wall of the central tube (3) for placing the submunition (6).

9. A method for assisting in the dispersal of cluster munitions for fire extinguishing, characterized in that, The auxiliary dispensing device for fire extinguishing cluster bombs as described in any one of claims 1-8 includes the following steps: After the fire extinguishing submunitions reach the set position, the bottle opening mechanism (14) controls the compressed gas cylinder (13) to open, and high-pressure gas is generated in the gas chamber (32) of the central tube (3). The high-pressure gas flows out at high speed through the through hole (31), and after flowing out of the through hole (31), it blows the submunitions (6) located on the outer wall of the central tube (3) to scatter.

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