Ton-level fire extinguishing bomb for forest steppe fire

Abstract

The utility model discloses a ton-level fire extinguishing bomb for forest and grassland fire disasters. The ton-level fire extinguishing bomb for forest and grassland fire disasters comprises a shell and an empennage, the shell is provided with a first end and a second end opposite to the first end, the second end is provided with a protruding part, the protruding part is provided with a shell opening part, the shell opening part is communicated with the shell, and a detonating assembly is arranged in the shell; the empennage comprises fins, the multiple fins are evenly distributed in the circumferential direction of the opening of the shell, the side, close to the second end, of the empennage is provided with an attaching part, and the attaching part is attached to the protruding part.

Description

Technical Field

[0001] The present application relates to the technical field of forest and grassland fire prevention and control, and more specifically, to a ton - level fire - extinguishing bomb for forest and grassland fires. Background Art

[0002] Forest and grassland fires start quickly, have a large burning area, and are extremely difficult to extinguish, which is a worldwide problem.

[0003] At present, most of the equipment in this field is small - sized devices, with a small amount of inhibitor carried, a high waste - effectiveness ratio, a small coverage area, and it is difficult to effectively control forest and grassland fires in actual combat. The key to the success of fire extinguishing lies in whether enough fire inhibitors can be accurately delivered and dispersed over a large area above the fire field.

[0004] Therefore, a new technical solution is needed to solve the above - mentioned technical problems. Utility Model Content

[0005] One object of the present application is to provide a new technical solution for a ton - level fire - extinguishing bomb for forest and grassland fires.

[0006] According to one aspect of the present application, there is provided a ton - level fire - extinguishing bomb for forest and grassland fires. The ton - level fire - extinguishing bomb for forest and grassland fires includes a shell and tail fins; the shell has a first end and a second end oppositely arranged with respect to the first end, the second end has a protruding portion, a shell opening is provided in the protruding portion, the shell opening communicates with the shell, and a detonation assembly is arranged inside the shell; the tail fins include fin blades, and a plurality of the fin blades are uniformly arranged along the circumferential direction of the shell opening. One side of the tail fins close to the second end has a fitting portion, and the fitting portion fits with the protruding portion.

[0007] Optionally, the shell has a receiving cavity filled with an inhibitor, and the shell opening communicates with the receiving cavity.

[0008] Optionally, the shell is provided with an installation pipe, one end of the installation pipe penetrates through the shell opening, the end of the installation pipe extending out of the shell opening has an installation opening, and a detonation assembly is arranged inside the installation pipe.

[0009] Optionally, the ton - level fire - extinguishing bomb for forest and grassland fires further includes a sealing cover, and the sealing cover is connected to the shell opening.

[0010] Optionally, one side of the fin blade is connected to the sealing cover, and a plurality of the fin blades are uniformly arranged along the circumferential direction of the sealing cover.

[0011] Optionally, the detonation assembly is disposed in the installation tube. The detonation assembly includes a time-delay and altitude-fixed detonation system and a pyrotechnic cartridge, and the time-delay and altitude-fixed detonation system and the pyrotechnic cartridge are sequentially arranged along the axial direction of the housing.

[0012] Optionally, the tonnage fire extinguishing bomb for forest and grassland fires further includes a suspension net and a suspension rope. The suspension net is sleeved outside the housing. A suspension buckle is arranged near the second end of the suspension net, and one end of the suspension rope is connected to the suspension buckle.

[0013] Optionally, a wire is embedded in the suspension rope. When the flying device is connected to the suspension rope, one end of the wire is connected to the unhooking device of the flying device, and the other end of the wire is connected to the time-delay and altitude-fixed detonation system.

[0014] Optionally, the tonnage fire extinguishing bomb for forest and grassland fires further includes a seal. A filling port is formed on the housing. The filling port communicates with the accommodation cavity, and the seal is connected to the filling port.

[0015] Optionally, an assembly reserved hole is provided at the first end.

[0016] In the embodiment of the present application, by providing a protruding portion at the second end of the housing, the storage space of the housing can be effectively increased to store more inhibitors. And by providing a tail wing at the second end of the housing, the airflow is cut by the tail wing during the landing process to stabilize the landing attitude of the aerial fire extinguishing bomb, avoid the aerial fire extinguishing bomb from deviating from the preset dropping point, and achieve precise dropping. Then, the housing is exploded by the ignition assembly to enable the inhibitor to be scattered above the fire site, effectively improving the fire extinguishing efficiency.

[0017] Other features and advantages of the present application will become clear through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present application and, together with the description, are used to explain the principles of the present application.

[0019] Figure 1 is a schematic structural diagram of the tonnage fire extinguishing bomb in the embodiment of the present application;

[0020] Figure 2 is a front view of the tonnage fire extinguishing bomb in the embodiment of the present application;

[0021] Figure 3 is a schematic cross-sectional structural diagram of the front view of the tonnage fire extinguishing bomb in the embodiment of the present application;

[0022] Figure 4 is Figure 3Enlarged schematic view of part A1.

[0023] Description of reference numerals:

[0024] 1 - Housing; 11 - First end; 111 - Assembly reserved hole; 12 - Second end; 121 - Protrusion; 13 - Accommodation cavity; 14 - Inhibitor; 15 - Housing opening; 16 - Installation pipe; 161 - Installation opening; 17 - Limiting ring

[0025] 2 - Detonation assembly; 21 - Delay and altitude - fixed detonation system; 22 - Pyrotechnic charge tube

[0026] 3 - Tail fin; 31 - Fin; 32 - Fitting part

[0027] 4 - Sealing cover

[0028] 5 - Suspension net

[0029] 6 - Suspension rope

[0030] 7 - Filling port

[0031] 8 - Sealing element Detailed implementation manners

[0032] Now, various exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present application, its application, or its use.

[0034] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.

[0035] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0037] According to an embodiment of the present application, a ton - level fire - extinguishing bomb for forest and grassland fires is provided. The ton - level fire - extinguishing bomb for forest and grassland fires includes a housing 1 and fins 3; the housing 1 has a first end 11 and a second end 12 opposite to the first end 11, the second end 12 has a protruding portion 121, the protruding portion 121 is provided with a housing opening 15, the housing opening 15 is communicated with the housing 1, and a detonating assembly 2 is arranged in the housing 1; the fins 3 include fin blades 31, and a plurality of the fin blades 31 are uniformly arranged along the circumferential direction of the housing opening 15, and one side of the fin blade 31 close to the second end 12 has a fitting portion 32, and the fitting portion 32 is fitted with the outer wall of the protruding portion 121.

[0038] As Figures 1 to 3 shown, the first end 11 is the bottom of the housing 1, that is, the windward side of the ton - level fire - extinguishing bomb for forest and grassland fires, and the second end 12 is the top of the housing 1, that is, the tail of the housing 1. The housing 1 is integrally formed of polyethylene material.

[0039] Of course, in the embodiment of the present application, the housing 1 is not limited to the above - mentioned material, and those skilled in the art can set it according to actual needs. For example, the housing 1 can also be integrally formed of materials such as polypropylene.

[0040] As Figures 1 to 4 shown, the second end 12 of the housing 1 has a protruding portion 121, and the protruding portion 121 is in a conical convex shape. By setting the second end 12 of the housing 1 to be in a conical convex shape, the accommodation space in the housing 1 can be effectively increased to store more inhibitor 14.

[0041] Of course, in the embodiment of the present application, the housing 1 is not limited to the above - mentioned structure, and those skilled in the art can set it according to actual needs. For example, the second end 12 of the housing 1 can also be an arched spherical surface.

[0042] As Figures 1 to 4 shown, the second end 12 of the housing 1 is in a conical convex shape. A column - shaped housing opening 15 is arranged at the center of the top of the second end 12, and the extending direction of the housing opening 15 is consistent with the axial direction of the housing 1. That is to say, the axial direction of the housing opening 15 is the same as the axial direction of the housing 1.

[0043] An installation pipe 16 is arranged in the housing 1. The installation pipe 16 is column - shaped. The installation pipe 16 is used to store the detonating assembly 2. The housing 1 is exploded by the detonating assembly 2 to scatter the inhibitor 14.

[0044] The installation pipe 16 is located in the accommodation cavity 13, and the detonating assembly 2 and the accommodation cavity 13 are separated by the installation pipe 16.

[0045] One end of the housing opening 15 is connected to the housing 1. That is to say, the housing opening 15 is a tubular structure, and the housing opening 15 is connected to the interior of the housing 1 through the second end 12. The detonation assembly 2 is placed into the housing 1 through the housing opening 15.

[0046] Of course, in the embodiment of the present application, the housing opening 15 and the housing 1 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, the housing opening 15 and the second end 12 of the housing 1 are integrally formed.

[0047] The tail fin 3 includes fin pieces 31. As Figures 1 to 3 shown, the fin piece 31 is a trapezoidal sheet structure. The tail fin 3 has a short side and a long side opposite to the short side. The top and bottom of the tail fin 3 are both beveled edges. The short side of the tail fin 3 is connected to the second end 12 by means of bonding, plugging or fixing parts, etc.

[0048] As Figures 1 to 3 shown, the short side of the tail fin 3 is connected to the outer wall of the housing opening 15 by means of bonding, plugging or fixing parts, etc.

[0049] The long side of the tail fin 3 is located on the side away from the convex tube 15. That is to say, the bottom bevel edge of the tail fin 3 is the fitting part 32. The fitting part 32 fits with the conical convex second end 12. By setting the second end 12 into a conical convex shape, not only the storage space of the accommodation cavity 13 is effectively increased, but also a supporting force can be provided to the fin piece 31 through the second end 12, reducing the force on the fitting part 32 of the fin piece 31 as the windward surface. By arranging the tail fin 3 at the second end 12 of the housing 1, the attitude of the aerial fire extinguishing bomb can be stabilized, and the aerial fire extinguishing bomb can be made to land in a fixed attitude by using the aerodynamic principle, preventing the fire extinguishing bomb from deviating from the dropping point during the landing process and effectively improving the dropping accuracy.

[0050] Of course, in the embodiment of the present application, the tail fin 3 and the housing 1 are not limited to the above structure, and those skilled in the art can set them according to actual needs. For example, the second end 12 of the housing 1 is in the shape of a frustum of a cone, and the tail fin 3 no longer fits with the second end 12 of the housing 1.

[0051] In the embodiments of the present application, by setting the second end 12 of the housing 1 to a conical convex shape, not only can the storage space of the accommodation cavity 13 be effectively increased to store more inhibitor 14, but also the protruding portion 121 can support the fin 31, reduce the force on the fin 31, and enhance the stability of the connection between the tail fin 3 and the housing 1. Moreover, by arranging the tail fin 3 at the second end 12 of the housing 1, during the landing process, the tail fin 3 cuts the air flow, reduces the wind resistance while maintaining a stable landing attitude of the aerial fire extinguishing bomb, avoids the aerial fire extinguishing bomb deviating from the preset dropping point, realizes precise dropping, and can play a role in stabilizing the landing attitude of the aerial fire extinguishing bomb, avoiding the aerial fire extinguishing bomb deviating from the preset dropping point, realizing precise dropping, and then the ignition component explodes the housing 1 to make the inhibitor 14 sprinkle above the fire site, effectively improving the fire extinguishing efficiency.

[0052] In one example, the housing 1 has an accommodation cavity 13 filled with an inhibitor 14, and the housing opening 15 communicates with the accommodation cavity 13.

[0053] As Figures 1 to 3 shown, the housing 1 has an accommodation cavity 13 filled with an inhibitor 14. The accommodation cavity 13 is an independent cavity, and the inhibitor 14 is stored in the accommodation cavity 13 to keep the inhibitor 14 sealed from the outside and avoid direct contact.

[0054] The inhibitor 14 can be a dry powder fire extinguishing agent or a water-based fire extinguishing agent. The inhibitor 14 is an efficient fire extinguishing agent specifically for forest and grassland.

[0055] In one example, the housing 1 is provided with an installation pipe 16, one end of the installation pipe 16 penetrates through the housing opening 15, the end of the installation pipe 16 extending out of the housing opening 15 has an installation opening 161, and a detonation component 2 is arranged in the installation pipe 16.

[0056] As Figures 1 to 3 shown, the installation pipe 16 is columnar. The installation pipe 16 is arranged in the housing 1. The end of the installation pipe 16 close to the second end 12 communicates with the housing opening 15, that is, the installation opening 161 communicates with the housing opening 15. The detonation component 2 is placed into the installation pipe 16 through the housing opening 15 and the installation opening 161.

[0057] Of course, in the embodiments of the present application, the housing opening 15, the installation pipe 16, and the housing 1 are not limited to the above structures, and those skilled in the art can set them according to actual needs. For example, the installation pipe 16 and the housing 1 are integrally formed, that is, one end of the installation pipe 16 extends out of the second end 12 of the housing 1, and the second end 12 of the housing 1 is connected to the outer wall of the installation pipe 16.

[0058] As Figures 1 to 3As shown, a detonation assembly 2 is arranged inside the installation pipe 16. The detonation assembly 2 is used to ignite or detonate the housing 1 so that the inhibitor 14 stored in the accommodation cavity 13 is scattered for fire extinguishing.

[0059] One end of the installation pipe 16 can extend out of the second end 12 of the housing 1, and the other end of the installation pipe 16 is close to the first end 11 of the housing 1. That is to say, the installation pipe 16 is vertically placed in the accommodation cavity 13 of the housing 1, and the detonation assembly 2 inside the installation pipe 16 is located in the accommodation cavity 13. The housing 1 is fully exploded by the detonation assembly 2, thereby effectively increasing the scattering area of the inhibitor 14. Moreover, the installation pipe 16 is vertically or horizontally placed in the housing 1 so that the axial direction of the installation pipe 16 is the same as the axial direction of the housing 1, which is convenient for assembling the installation pipe 16 and the detonation assembly 2 and effectively reduces the labor intensity.

[0060] In one example, a limiting ring 17 is arranged at the end of the installation pipe 16 extending out of the housing opening 15, and the outer diameter dimension of the limiting ring 17 is the same as the outer diameter dimension of the housing opening 15.

[0061] As Figures 1 to 4 shown, a limiting ring 17 is arranged at one end of the installation pipe 16 extending out of the housing opening 15. By arranging the limiting ring 17, the end of the installation pipe 16 is limited within the housing opening 15.

[0062] The limiting ring 17 is annular. The outer diameter dimension of the limiting ring 17 is the same as the outer diameter dimension of the housing opening 15. That is to say, the limiting ring 17 and the end of the installation pipe 16 extending out of the housing opening 15 are fixed together by bonding, welding or integral molding, etc. The installation pipe 16 is inserted into the housing opening 15 and is limited by the limiting ring 17. The limiting ring 17 overlaps the housing opening 15, and the position of the installation pipe 16 is limited by the limiting ring 17 to facilitate the assembly of the installation pipe 16 and the detonation assembly 2. First, the detonation assembly 2 is assembled inside the installation pipe 16, and then the installation pipe 16 equipped with the detonation assembly 2 enters the accommodation cavity 13 through the housing opening 15.

[0063] Certainly, in the embodiment of the present application, the limiting ring 17, the installation pipe 16 and the housing opening 15 are not limited to the above structures, and those skilled in the art can set them according to actual needs. For example, the limiting ring 17, the installation pipe 16 and the housing opening 15 can be integrally formed.

[0064] In one example, the diameter dimension of the installation opening 161 is smaller than the inner diameter dimension of the limiting ring 17, and the diameter dimension of the installation pipe 16 is smaller than the inner diameter dimension of the housing opening 15.

[0065] As Figures 1 to 4As shown, the end of the installation pipe 16 away from the first end 11 has an installation opening 161. The detonation assembly 2 is assembled into the installation pipe 16 through the installation opening 161.

[0066] The diameter dimension of the installation opening 161 is smaller than the inner diameter dimension of the housing opening 15, so that the installation pipe 16 can be assembled into the accommodation cavity 13 through the housing opening 15.

[0067] The inner diameter dimension of the housing opening 15 is smaller than the inner diameter dimension of the limiting ring 17, to prevent the limiting ring 17 from falling into the accommodation cavity 13 through the housing opening 15, resulting in the installation pipe 16 falling off from the second end 12 of the housing 1.

[0068] The outer wall of the installation pipe 16 extending out of the housing opening 15 is connected to the inner wall of the limiting ring 17. The outer wall of the installation pipe 16 and the inner wall of the limiting ring 17 can be fixedly connected by means such as welding, bonding or integral molding.

[0069] In one example, the ton - level fire - extinguishing bomb for forest and grassland fires further includes a sealing cover 4, and the sealing cover 4 is connected to the limiting ring 17 and the housing opening 15.

[0070] As Figures 1 to 4 shown, the outer wall of the housing opening 15 has an external thread. The inner wall of the sealing cover 4 has an internal thread matching the external thread. The limiting ring 17 is lapped on the housing opening 15, the sealing cover 4 is thread - connected to the housing opening 15, and the limiting ring 17 is located inside the sealing cover 4 and the housing opening 15 to seal the installation opening 161. By sealing the installation opening 161, the moisture - proof seal of the detonation assembly 2 is achieved.

[0071] In one example, the tail fin 3 includes a plurality of fins 31, and the plurality of fins 31 are connected to the sealing cover 4, and the plurality of fins 31 are arranged along the circumferential direction of the sealing cover 4.

[0072] As Figures 1 to 3 shown, the tail fin 3 adopts a sheet - like structure, and the fins 31 are fixed to the outer wall of the sealing cover 4 through fixing parts, playing a role in stabilizing the attitude of the fire - extinguishing bomb.

[0073] The circumferential direction of the sealing cover 4 is the same as the circumferential direction of the housing 1. That is to say, the plurality of fins 31 are arranged along the circumferential direction of the sealing cover 4.

[0074] In the embodiment of the present application, the fin 31 is trapezoidal. The short side of the fin 31 is connected to the outer wall of the sealing cover 4, and the long side of the fin 31 is located on the side away from the sealing cover 4. That is to say, the bottom hypotenuse of the fin 31 is the fitting part 32.

[0075] The shape of the fitting part 32 matches the protruding part 121. For example, the protruding part 121 is conical, and the fitting part 32 is linear. Or, the protruding part 121 is in the shape of an arched spherical surface, and the fitting part 32 is arc-shaped.

[0076] The tail wing 3 includes a plurality of fins 31. The fins 31 can be fixed to the sealing cover 4 by fixing members, or can be fixed to the outer wall of the sealing cover 4 by means such as welding or assembly. For example, the fins 31 are fixed to the sealing cover 4 by means such as plugging or fasteners. By providing a plurality of fins 31, the function of stabilizing the landing attitude of the fire extinguishing bomb can be achieved.

[0077] In the embodiment of the present application, six to eight fins 31 are adopted and are evenly arranged in the circumferential direction of the sealing cover 4. Using the principle of aerodynamics, the fire extinguishing bomb always maintains a fixed attitude during landing, which is beneficial to accurately controlling the detonation height and the spraying shape of the inhibitor 14.

[0078] In one example, the detonation assembly 2 is arranged in the installation pipe 16. The detonation assembly 2 includes a delay and height-fixed detonation system 21 and a pyrotechnic charge tube 22. The delay and height-fixed detonation system 21 and the pyrotechnic charge tube 22 are arranged in sequence along the axial direction.

[0079] As Figures 1 to 4 shown, the axial direction of the installation pipe 16 is consistent with the axial direction of the housing 1. That is to say, the installation pipe 16 is arranged along the axial direction of the housing 1.

[0080] An ignition component is arranged in the installation pipe 16. The ignition component includes a delay and height-fixed detonation system 21 and a pyrotechnic charge tube 22. One end of the installation pipe 16 close to the housing opening 15 is threadedly connected to the housing opening 15 through the sealing cover 4 to seal the detonation assembly 2 and prevent the detonation assembly 2 from being affected by moisture.

[0081] The pyrotechnic charge tube 22 includes a housing, pyrotechnic charge, and an ignition head. The pyrotechnic charge is arranged in the housing, the ignition head is arranged on the housing, and the pyrotechnic charge is connected to the delay and height-fixed detonation system 21 through the ignition head.

[0082] The delay and height-fixed detonation system 21 includes a program and a circuit board. The pyrotechnic charge is precisely controlled by the delay and height-fixed detonation system 21 to ignite the ignition head, detonate the pyrotechnic charge, and spray the inhibitor 14 above the fire site.

[0083] The pyrotechnic charge tube 22 is located in the installation pipe 16 and is close to the first end 11 of the housing 1. The delay and height-fixed detonation system 21 is located in the installation pipe 16 and is close to the second end 12 of the housing 1.

[0084] The ignition assembly is assembled into the mounting tube 16 through the mounting opening 161, and the mounting tube 16 equipped with the detonating assembly 2 is placed into the receiving cavity 13 of the housing 1 through the housing opening 15. The mounting tube 16 is fixed within the housing 1 by connecting the sealing cover 4 to the housing opening 15.

[0085] In the embodiment of the present application, the receiving cavity 13 within the housing 1 is an independent cavity for containing the inhibitor 14, which is sealed from the outside of the housing 1 and is completely isolated from the pyrotechnic charge tube 22 and the delay height-fixing initiation system 21 through the mounting tube 16 to avoid direct contact.

[0086] In one example, the tonnage fire extinguishing bomb for forest and grassland fires further includes a sling net 5 and a suspension rope 6. The sling net 5 is sleeved outside the housing 1. A hanging buckle is provided near the second end 12 of the sling net 5, and one end of the suspension rope 6 is connected to the hanging buckle.

[0087] As Figures 1 to 3 shown, the sling net 5 is made of load-bearing belts woven into a net structure and sleeved outside the housing 1. A hanging buckle is provided at the upper part of the sling net 5, and the hanging buckle is connected to the suspension rope 6.

[0088] In one example, a wire is embedded in the suspension rope 6. When the flying device is connected to the suspension rope 6, one end of the wire is connected to the unhooking device of the flying device, and the other end of the wire is connected to the delay height-fixing initiation system 21.

[0089] As Figures 1 to 3 shown, the suspension rope 6 is a load-bearing rope with a certain length in which a wire is embedded. One end of the suspension rope 6 is connected to the sling net 5, and the other end is connected to the unhooking device of the flying device. The fire extinguishing bomb is hung below the flying device, maintaining a certain safe distance from the flying device.

[0090] One end of the wire of the suspension rope 6 is connected to the delay height-fixing initiation system 21, and the other end is connected to the unhooking device of the flying device, so that the delay height-fixing initiation system 21 is activated simultaneously when the unhooking device is opened.

[0091] In one example, the tonnage fire extinguishing bomb for forest and grassland fires further includes a sealing member 8. A filling port 7 is provided on the housing 1. The filling port 7 communicates with the receiving cavity 13, and the sealing member 8 is connected to the filling port 7.

[0092] As Figures 1 to 3 shown, a filling port 7 is provided at the second end 12 of the housing 1. The filling port 7 communicates with the receiving cavity 13. The inhibitor 14 can be filled into the receiving cavity 13 of the housing 1 through the filling port 7, so as to facilitate the transportation of the inhibitor 14 by hanging with a flying device, and the inhibitor 14 can be sprayed above the fire site through this fire extinguishing bomb.

[0093] By setting the installation port 161 for the detonation component 2 and the filling port 7 for the inhibitor 14, the installation pipe 16 is installed first and then the inhibitor 14 is filled, avoiding the problem that it is difficult to insert the installation pipe 16 after the inhibitor 14 is filled.

[0094] As Figures 1 to 3 shown, the seal 8 is tightly connected to the filling port 7 by threads. The inhibitor 14 is filled into the accommodation cavity 13 of the housing 1 through the filling port 7, and then the seal 8 is tightly connected to the filling port 7 of the housing by threaded connection to ensure the sealing of the housing 1 and prevent the leakage of the inhibitor 14 during transportation.

[0095] The seal 8 can be a sealing cover 4 or a sealing plug.

[0096] In one example, a plurality of strengthening structures are provided on the housing 1.

[0097] As Figures 1 to 3 shown, a plurality of protrusions are provided on the side wall of the housing 1. By providing protrusions on the side wall of the housing 1, the strength of the housing 1 is enhanced. The smaller the diameter of the housing 1, the greater the strength of the housing 1.

[0098] In the embodiment of the present application, the fire extinguishing bomb is transported by a flying device. Within the effective payload range of the flying device, it is necessary to reduce the thickness of the housing 1 to reduce the load of the housing 1, so as to store more inhibitor 14. Therefore, when the thickness of the housing 1 is reduced, the strength of the housing 1 is smaller. By adding a plurality of protrusions on the side wall of the housing 1, the structural strength of the housing 1 is effectively improved, achieving the reduction of the load of the housing 1 within the effective payload of the flying device and increasing the storage capacity of the inhibitor 14.

[0099] Of course, in the embodiment of the present application, the strengthening structure is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, a recessed portion can also be provided on the side wall of the housing 1 to improve the strength of the housing 1 by providing the recessed portion.

[0100] In one example, an assembly reserved hole 111 is provided at the first end 11.

[0101] As Figures 1 to 3 shown, the housing 1 is a columnar housing 1. An assembly reserved hole 111, that is, a forklift hole, is provided at the first end 11 of the housing 1. By providing a forklift hole at the first end 11 of the housing 1, it is convenient for the ton - level fire extinguishing bomb for forest and grassland fires to be transported on the ground. The windward side of the housing 1 adopts a rounded - corner structure to reduce the influence of air resistance on the landing attitude of the bomb body. By providing an assembly reserved hole 111 at the bottom of the ton - level fire extinguishing bomb, it is convenient for the ton - level fire extinguishing bomb to be transported on the ground.

[0102] In the embodiments of the present application, the aerial fire extinguishing bombs for forest and grassland fires cover aerial fire extinguishing bombs of different levels such as 600 kg level, 1000 kg level, 2000 kg level, 3000 kg level, 5000 kg level, 8000 kg level, and 10000 kg level. Different levels of fire extinguishing bombs are selected according to the size of the flight equipment such as manned helicopters or unmanned aerial vehicles of the carrying platform.

[0103] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A ton-class fire-extinguishing bomb for forest and grassland fires, characterized in that: include: A shell (1), the shell (1) having a first end (11) and a second end (12) arranged opposite to the first end (11), the second end (12) having a protruding portion (121), the protruding portion (121) being provided with a shell opening (15), the shell opening (15) being in communication with the shell (1), and a detonating assembly (2) being arranged in the shell (1); A tail wing (3), the tail wing (3) comprising a wing (31), a plurality of the wing (31) being evenly arranged in the circumferential direction of the shell mouth (15), a side of the wing (31) close to the second end (12) having a fitting portion (32), the fitting portion (32) being fitted with the protruding portion (121).

2. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 1 is characterized in that: The housing (1) has a containing chamber (13), the containing chamber (13) is filled with an inhibitor (14), and the housing mouth (15) is in communication with the containing chamber (13).

3. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 2 is characterized in that: The shell (1) is provided with a mounting tube (16), one end of which passes through the shell mouth (15), and the end of the mounting tube (16) extending out of the shell mouth (15) has a mounting opening (161), and a detonating assembly (2) is arranged in the mounting tube (16).

4. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 3 is characterized in that: It also comprises a sealing cover (4), wherein the sealing cover (4) is connected to the shell opening (15).

5. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 4 is characterized in that: One side of the fin (31) is connected to the sealing cover (4), and a plurality of the fins (31) are evenly arranged along the circumferential direction of the sealing cover (4).

6. The ton-class fire extinguishing bomb for forest and grassland fires according to claim 3 is characterized in that: The detonating assembly (2) is arranged on the mounting tube (16), and the detonating assembly (2) comprises a time-delayed fixed-height detonating system (21) and a pyrotechnic powder tube (22), and the time-delayed fixed-height detonating system (21) and the pyrotechnic powder tube (22) are arranged in sequence along the axial direction of the shell (1).

7. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 6 is characterized in that: It also comprises a sling net (5) and a sling rope (6), wherein the sling net (5) is sleeved on the outside of the shell (1), and a sling buckle is provided on the sling net (5) near the second end (12), and the sling buckle is connected to one end of the sling rope (6).

8. The ton-level fire-extinguishing bomb for forest and grassland fires according to claim 7 is characterized in that: A wire is embedded in the suspension rope (6); when the flight equipment is connected to the suspension rope (6), one end of the wire is connected to the decoupling device of the flight equipment, and the other end of the wire is connected to the time-delayed fixed-altitude detonation system (21).

9. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 2, characterized in that: It also comprises a sealing member (8); a filling port (7) is provided on the housing (1); the filling port (7) is communicated with the accommodating chamber (13); and the sealing member (8) is connected to the filling port (7).

10. The ton-level fire extinguishing bomb for forest and grassland fires according to claim 1, characterized in that: The first end (11) is provided with a reserved assembly hole (111).

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