Throwing type fire extinguishing bomb

Abstract

The utility model discloses a throwing type fire extinguishing bomb which comprises a shell and a sealing assembly, the shell is provided with a containing cavity, the containing cavity is used for storing a fire extinguishing agent, a detonating assembly is arranged in the containing cavity, and one end of the detonating assembly extends out of the shell; the sealing assembly is connected with the shell, the sealing assembly seals the containing cavity and the detonating assembly, a detonating control device is arranged on the sealing assembly, and the detonating control device is connected with the detonating assembly.

Description

Technical Field

[0001] This application relates to the field of fire protection technology, and more particularly, to a throwable fire extinguishing bomb. Background Art

[0002] In fire extinguishing operations, it is necessary to carry out fire extinguishing operations efficiently and accurately. Traditional fire extinguishing methods have certain limitations. For example, the terrain at the fire scene is complex and there is no way to pass, which brings difficulties to the fire fighting work.

[0003] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0004] An object of this application is to provide a new technical solution for a throwable fire extinguishing bomb.

[0005] According to one aspect of this application, a throwable fire extinguishing bomb is provided. The throwable fire extinguishing bomb includes a housing and a sealing assembly; the housing has a receiving cavity for storing a fire extinguishing agent, and a detonating assembly is disposed in the receiving cavity, and one end of the detonating assembly extends out of the housing; the sealing assembly is connected to the housing, the sealing assembly seals the receiving cavity and the detonating assembly, and an initiation control device is disposed on the sealing assembly, and the initiation control device is connected to the detonating assembly.

[0006] Optionally, the detonating assembly includes a central tube disposed in the receiving cavity, and one end of the central tube extends out of the housing. The end of the central tube extending out of the housing has a lapping portion that laps on the housing.

[0007] Optionally, the sealing assembly is connected to the housing. In the state where the sealing assembly is connected to the housing, the lapping portion is squeezed between the sealing assembly and the housing.

[0008] Optionally, the central tube includes a first tube section, a second tube section, and a third tube section. The opposite ends of the second tube section are respectively connected to the first tube section and the third tube section; wherein, the diameter of the first tube section is larger than the diameter of the third tube section, the diameter of one end of the second tube section is the same as the diameter of the first tube section, and the diameter of the other end of the second tube section is the same as the diameter of the third tube section.

[0009] Optionally, a concave platform is provided at one end of the central tube extending out of the receiving cavity, and a sealing member is sleeved on the end of the central tube extending out of the receiving cavity, and the sealing member is embedded in the concave platform.

[0010] Optionally, the recess includes a first recess and a second recess; a first seal is embedded in the first recess, and the first seal abuts between the overlap portion and the shell; a second seal is embedded in the second recess, and the first seal abuts between the center tube and the shell.

[0011] Optionally, the sealing assembly has a slot and a cover plate, a plurality of the slots are arranged along the circumferential direction of the sealing assembly, and the cover plate is connected to the sealing assembly.

[0012] Optionally, the throwable fire extinguishing bomb further includes a tail wing, a plug-in portion is provided on one side of the tail wing, the plug-in portion is snapped into the slot, the slot and the plug-in portion form a limiting fit, and the cover plate can limit the axial direction of the tail wing.

[0013] Optionally, the detonation assembly further includes pyrotechnics, an igniter and a connecting wire, the pyrotechnics is filled in the central tube, the igniter is buried in the pyrotechnics, and opposite ends of the connecting wire are respectively connected to the igniter and the detonation control device.

[0014] Optionally, the detonation control device includes a switch, a plug-in safety pin, a buzzer, a digital tube and an indicator light, and the switch, the plug-in safety pin, the buzzer, the digital tube and the indicator light are all arranged in the sealing assembly.

[0015] In an embodiment of the present application, a shell containing a fire extinguishing agent is brought to the top of a fire that cannot be reached due to terrain, fire intensity, etc. by flying equipment such as drones, and the detonation assembly is activated by an initiation control device to blow up the shell through the detonation assembly, so that the fire extinguishing agent in the shell can be thrown to the fire source and the surrounding area of ​​the fire source, thereby achieving effective fire extinguishing, greatly improving the timeliness and efficiency of fire extinguishing, and reducing the danger faced by rescue personnel.

[0016] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0018] Figure 1 It is a schematic diagram of the structure of the fire extinguishing bomb in the embodiment of the present application;

[0019] Figure 2 is a top view of the fire extinguishing bomb in the embodiment of the present application;

[0020] Figure 3 is a cross-sectional schematic diagram of a fire extinguishing bomb in an embodiment of the present application;

[0021] Figure 4 is Figure 3 an enlarged schematic view of the circled part in

[0022] Figure 5 a schematic cross-sectional view of the central tube in an embodiment of the present application;

[0023] Figure 6 a schematic structural view of the housing in an embodiment of the present application;

[0024] Figure 7 is a schematic connection view of the fin and the sealing assembly in an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 1 - housing; 11 - accommodation cavity; 12 - protruding part; 121 - hook boss;

[0027] 2 - detonation assembly; 21 - central tube; 211 - overlapping part; 212 - first pipe section; 213 - second pipe section; 214 - third pipe section; 215 - first concave platform; 2151 - first seal; 216 - second concave platform; 2161 - second seal; 22 - pyrotechnic charge; 23 - igniter; 24 - connecting wire;

[0028] 3 - sealing assembly; 31 - slot; 32 - cover plate;

[0029] 4 - detonation control device; 41 - switch; 42 - plug - in safety pin; 43 - buzzer; 44 - digital tube; 45 - indicator light; 46 - USB serial port;

[0030] 5 - fin; 51 - insertion part;

[0031] 6 - hook;

[0032] 7 - tail groove;

[0033] 8 - hook. Detailed implementation manners

[0034] 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.

[0035] 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 or its application or use.

[0036] 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.

[0037] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof in subsequent figures is not required.

[0039] According to an embodiment of the present application, a throwable fire extinguishing bomb is provided. The throwable fire extinguishing bomb includes a housing 1 and a sealing assembly 3. The housing 1 has a receiving cavity 11 for storing a fire extinguishing agent. An initiating assembly 2 is disposed in the receiving cavity 11, and one end of the initiating assembly 2 extends out of the housing 1. The sealing assembly 3 is connected to the housing 1, the sealing assembly 3 seals the receiving cavity 11 and the initiating assembly 2, and an initiating control device 4 is disposed on the sealing assembly 3, and the initiating control device 4 is connected to the initiating assembly 2.

[0040] As Figure 1 、 Figure 3 and Figure 6 shown, the housing 1 is columnar. The housing 1 has a first end and a second end disposed opposite to each other.

[0041] The first end of the housing 1 is the warhead of the fire extinguishing bomb, which is elliptical spherical. By setting the warhead of the housing 1 to be elliptical spherical, not only can the resistance during the landing of the fire extinguishing bomb be effectively reduced, but also the volume of the receiving cavity 11 in the housing 1 can be effectively increased to store more fire extinguishing agent. Compared with a spherical surface, the elliptical spherical surface can reduce the stress concentration of the weight of the fire extinguishing bomb on the bottom surface during the filling of the fire extinguishing agent.

[0042] The second end of the housing 1 is the tail of the fire extinguishing bomb, which is a conical structure. By setting the second end of the housing 1 to be conical, it is not only beneficial to the connection between the sealing assembly 3 and the housing 1, but also beneficial to arranging components for cutting air flow at the tail of the housing 1 to improve the stability of the fire extinguishing bomb during the landing process.

[0043] A tail groove 7 is provided at the second end of the housing 1, and the tail groove 7 is a rectangular groove. The rectangular groove is integrally formed with the housing 1. The tail groove 7 can accommodate a finger to enter, providing a stable and comfortable grasping position for the user. When it is necessary to lift or carry the fire extinguishing bomb, the finger can naturally extend into the tail groove 7, making the action of lifting or carrying the fire extinguishing bomb easier and more labor-saving.

[0044] A detonation component 2 is arranged inside the accommodation cavity 11. The housing 1 is suspended and transported above the fire source by a flying device such as a drone. The housing 1 is exploded by the detonation component 2 so that the fire extinguishing agent is sprinkled onto the fire source and around the fire source, thereby achieving fire extinguishing.

[0045] The end of the detonation component 2 extends out of the housing 1, which can not only initially seal the housing 1 to prevent the fire extinguishing agent in the housing 1 from spilling during transportation, but also facilitate the connection between the detonation component 2 and the detonation control device 4 on the sealing component 3, so as to activate the detonation component 2 through the detonation control device 4.

[0046] As Figure 1 and Figure 3 shown, the sealing component 3 is arranged at the second end of the housing 1. The detonation component 2 is sealed by the sealing component 3, and the accommodation cavity 11 of the housing 1 is secondarily sealed by the sealing component 3. The accommodation cavity 11 of the housing 1 is double-sealed by the detonation component 2 and the sealing component 3, effectively preventing the fire extinguishing agent from leaking during transportation and affecting the fire extinguishing effect of the fire extinguishing bomb.

[0047] The detonation control device 4 is arranged on the sealing component 3, which is not only convenient for operating the detonation control device 4, but also conducive to overhauling the detonation control device 4, effectively reducing the difficulty of overhaul and disassembly.

[0048] In the embodiment of the present application, the housing 1 containing the fire extinguishing agent is brought above the fire that cannot be reached due to terrain, fire intensity, etc. by a flying device such as a drone. The detonation component 2 is activated through the detonation control device 4 to explode the housing 1 through the detonation component 2, so that the fire extinguishing agent in the housing 1 can be sprinkled onto the fire source and around the fire source, thereby achieving effective fire extinguishing, greatly improving the timeliness and efficiency of fire extinguishing, and reducing the danger faced by rescue personnel.

[0049] In one example, the housing 1 has a protruding portion 12, the protruding portion 12 is arranged on the housing 1, and the protruding portion 12 communicates with the accommodation cavity 11.

[0050] As Figure 6 shown, a protruding portion 12 is arranged at the second end of the housing 1. The protruding portion 12 is in the shape of a hollow column.

[0051] The protruding portion 12 communicates with the accommodation cavity 11. The detonation component 2 enters the accommodation cavity 11 through the protruding portion 12, and one end of the detonation component 2 is lapped on the end of the protruding portion 12 away from the housing 1. The detonation component 2 is clamped on the housing 1 through the protruding portion 12 to fix the position of the detonation component 2 in the accommodation cavity 11 and prevent the position of the detonation component 2 in the accommodation cavity 11 from shifting, resulting in uneven explosion of the housing 1 and affecting the sprinkling effect of the fire extinguishing agent.

[0052] The outer wall of the protruding part 12 is provided with an external thread, and the bottom of the sealing component 3 is provided with an internal thread. The sealing component 3 is threadedly connected to the protruding part 12, and the sealing component 3 can seal the detonating component 2 and the accommodating cavity 11, preventing the detonating component 2 and the fire extinguishing agent from being affected by moisture and leakage, which may affect the fire extinguishing effect of the fire extinguishing bomb.

[0053] Both the housing 1 and the central tube 21 are made of special materials, mainly composed of PE, PP, calcium carbonate, etc. They have high strength and will break into small fragments after bursting, which will not affect the spraying direction and range of the fire extinguishing agent.

[0054] In one example, the detonating component 2 includes a central tube 21. The central tube 21 is disposed in the accommodating cavity 11. One end of the central tube 21 extends out of the housing 1, and the end of the central tube 21 extending out of the housing 1 has a lapping portion 211, and the lapping portion 211 is lapped on the housing 1.

[0055] As Figure 3 and Figure 5 shown, the central tube 21 is a hollow columnar shape with an opening at one end. One end of the central tube 21 enters the accommodating cavity 11 through the protruding part 12, and the end of the central tube 21 with the opening is fixed to the protruding part 12.

[0056] A lapping portion 211 is provided at the end of the central tube 21 with the opening. The lapping portion 211 is annular. The inner diameter dimension of the lapping portion 211 is the same as the opening diameter dimension of the central tube 21, and the diameter dimension of the lapping portion 211 is larger than the inner diameter dimension of the protruding part 12. By providing the lapping portion 211 at the end of the central tube 21, the central tube 21 can be fixed in the accommodating cavity 11, and the position of the central tube 21 in the accommodating cavity 11 will not be offset due to the actions during transportation, thereby ensuring the position of the detonating component 2 in the central tube 21 in the accommodating cavity 11, and preventing the uneven explosion of the detonating component 2 on the housing 1 due to the offset of the central tube 21 in the accommodating cavity 11, which may affect the spraying effect of the fire extinguishing agent.

[0057] Of course, in the embodiments of the present application, the central tube 21 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the central tube 21 can also be provided at the first end.

[0058] In one example, the sealing component 3 is connected to the housing 1. In the state where the sealing component 3 is connected to the housing 1, the lapping portion 211 is squeezed between the sealing component 3 and the housing 1.

[0059] As Figure 3 and Figure 4As shown, the sealing assembly 3 is a columnar structure with an opening at the bottom. The inner wall of the sealing assembly 3 has internal threads, and the outer wall of the protruding portion 12 has external threads that match the internal threads. The protruding portion 12 is threadedly connected to the sealing assembly 3 to seal the accommodation cavity 11 and the central tube 21.

[0060] A gasket is provided inside the sealing assembly 3. When the sealing assembly 3 is buckled on the protruding portion 12, the bottom of the overlapping portion 211 of the central tube 21 contacts the protruding portion 12, and the top contacts the gasket of the sealing assembly 3. Tightening the sealing assembly 3 onto the protruding portion 12 causes the sealing assembly 3 to axially squeeze the overlapping portion 211, and the bottom of the overlapping portion 211 abuts against the protruding portion 12, thereby achieving the sealing of the central tube 21 and the accommodation cavity 11 by the sealing assembly 3. Sealing the central tube 21 can prevent the detonation assembly 2 from getting damp, etc., which may affect the activation of the detonation assembly 2. Sealing the accommodation cavity 11 can prevent the leakage of the fire extinguishing agent, resulting in a decrease in the fire extinguishing dose of the fire extinguishing bomb, thereby affecting the fire extinguishing effect.

[0061] In one example, the central tube 21 includes a first tube section 212, a second tube section 213, and a third tube section 214. Opposite ends of the second tube section 213 are respectively connected to the first tube section 212 and the third tube section 214. Among them, the diameter dimension of the first tube section 212 is larger than the diameter dimension of the third tube section 214. The diameter dimension of one end of the second tube section 213 is the same as the diameter dimension of the first tube section 212, and the diameter dimension of the other end of the second tube section 213 is the same as the diameter dimension of the third tube section 214.

[0062] As Figure 5 shown, the central tube 21 includes three tube sections, and the second tube section 213 is conical. The first tube section 212, the second tube section 213, and the third tube section 214 are sequentially connected and communicate. The three tube sections of the central tube 21 can be connected by bonding, welding, or integral molding.

[0063] The diameter dimension of the first tube section 212 is larger than the diameter dimension of the third tube section 214. The end of the first tube section 212 away from the second tube section 213 is provided with an overlapping portion 211. By setting the diameter dimension of the first tube section 212 to be larger than the diameter dimension of the third tube section 214, the first tube section 212 is adapted to the protruding portion 12.

[0064] The central tube 21 is inserted into the protruding portion 12 and is located within the accommodation cavity 11. That is to say, the first tube section 212 of the central tube 21 is located within the protruding portion 12, the third tube section 214 is located within the accommodation cavity 11, and the second tube section 213 is a connecting and transitional section. The diameter dimension of the first tube section 212 is adapted to the inner diameter dimension of the protruding portion 12. By setting the diameter dimension of the first tube section 212 to be adapted to the diameter dimension of the protruding portion 12, the function of the first tube section 212 to seal the accommodation cavity 11 is achieved, preventing the leakage of the extinguishing agent within the accommodation cavity 11 and the like. By setting the diameter dimension of the third tube section 214 to be smaller than the diameter dimension of the first tube section 212, the occupied area of the central tube 21 within the accommodation cavity 11 can be effectively reduced, thereby increasing the volume for storing the extinguishing agent within the accommodation cavity 11.

[0065] Certainly, in the embodiments of the present application, the central tube 21 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the diameter dimensions of the first tube section 212, the second tube section 213, and the third tube section 214 of the central tube 21 are the same, or the diameter dimension of the first tube section 212 is smaller than the diameter dimension of the third tube section 214.

[0066] In one example, a concave platform is provided at one end of the central tube 21 extending out of the accommodation cavity 11. A sealing member is sleeved on the end of the central tube 21 extending out of the accommodation cavity 11, and the sealing member is embedded in the concave platform.

[0067] As Figure 5 shown, a concave platform is provided on one side of the central tube 21 close to the overlapping portion 211, and the concave platform is arranged along the circumferential direction of the central tube 21. A sealing member is embedded in the concave platform. The sealing member is a sealing ring. By sleeving the sealing ring on the central tube 21, when the central tube 21 is inserted into the protruding portion 12, the sealing ring abuts between the central tube 21 and the housing 1, thereby achieving a preliminary seal of the accommodation cavity 11 through the sealing ring.

[0068] In one example, the concave platform includes a first concave platform 215 and a second concave platform 216. A first sealing member 2151 is embedded in the first concave platform 215, and the first sealing member 2151 abuts between the overlapping portion 211 and the housing 1; a second sealing member 2161 is embedded in the second concave platform 216, and the first sealing member 2151 abuts between the central tube 21 and the housing 1.

[0069] As Figure 5 shown, the concave platform includes a first concave platform 215 and a second concave platform 216. The first concave platform 215 is provided between the second concave platform 216 and the overlapping portion 211.

[0070] The first concave platform 215 is a groove opened along the circumferential direction of the first tube section 212. As Figure 4As shown, the longitudinal section of the groove has a rectangular structure with an opening on one side. The first seal 2151 embedded in the first boss 215 is a sealing ring with a rectangular longitudinal section. When the sealing assembly 3 is connected to the protruding part 12, the sealing ring with a rectangular longitudinal section abuts between the first pipe section 212 and the sealing assembly 3. The sealing assembly 3 and the first pipe section 212 are used to radially squeeze the sealing ring with a rectangular longitudinal section, so that the sealing ring with a rectangular longitudinal section undergoes compressive deformation in the axial direction, thereby realizing the sealing of the accommodation cavity 11.

[0071] The second boss 216 is a groove opened along the circumferential direction of the first pipe section 212. As Figure 4 shown, the longitudinal section of this groove is arc-shaped. The second seal 2161 embedded in the first boss 215 is a sealing ring with a circular longitudinal section. When the central pipe 21 is connected to the protruding part 12, the sealing ring with a circular longitudinal section abuts between the first pipe section 212 and the protruding part 12. The protruding part 12 and the first pipe section 212 are used to radially squeeze the sealing ring with a circular longitudinal section, so that the sealing ring with a circular longitudinal section undergoes compressive deformation in the axial and radial directions, thereby realizing the sealing of the accommodation cavity 11.

[0072] In one example, the sealing assembly 3 has a slot 31 and a cover plate 32. A plurality of the slots 31 are arranged along the circumferential direction of the sealing assembly 3, and the cover plate 32 is connected to the sealing assembly 3.

[0073] As Figure 3 and Figure 7 shown, the outer wall of the sealing assembly 3 is provided with slots 31 in the radial direction. In a top view, the cross-section of the slot 31 is T-shaped. A plurality of slots 31 are evenly arranged along the circumferential direction of the sealing assembly 3. By providing a plurality of slots 31 on the outer wall of the sealing assembly 3, a component for cutting the airflow is inserted into the slots 31, and the T-shaped limiting structure is used to limit the position of the component in the radial direction, avoiding the component falling off during the landing process, resulting in the deviation of the landing of the fire extinguishing bomb and affecting the accurate landing of the fire extinguishing bomb.

[0074] The top of the sealing assembly 3 is provided with a cover plate 32. The cover plate 32 is fixedly connected to the sealing assembly 3 by screws. The tail wing 5 for cutting the airflow is inserted into the slot 31, and the cover plate 32 is fixed on the top of the sealing assembly 3 by screws to limit the position of the tail wing 5 in the axial direction, avoiding loose insertion. During the landing process of the fire extinguishing bomb, the tail wing 5 falls off the sealing assembly 3 along the slot 31, resulting in the deviation of the landing of the fire extinguishing bomb and affecting the accurate landing of the fire extinguishing bomb.

[0075] Of course, in the embodiments of the present application, the slot 31 is not limited to the above structure, and those skilled in the art can set it according to actual needs. For example, the slot 31 can also be a structure with a cross-section of Y-shaped, C-shaped or M-shaped, etc.

[0076] In one example, the throwable fire extinguishing bomb further includes a tail fin 5. One side of the tail fin 5 is provided with a plug-in portion 51, and the plug-in portion 51 is snap-fitted into the slot 31. The slot 31 and the plug-in portion 51 form a limiting fit. In a state where the cover plate 32 is connected to the sealing assembly 3, the cover plate 32 can define the axial direction of the tail fin 5.

[0077] As Figure 3 , Figure 4 and Figure 7 shown, the tail fin 5 is plate-shaped. The bottom edge of the tail fin 5 is attached to the second end of the housing 1, and one side of the tail fin 5 is inserted into the slot 31. The plug-in portion 51 is provided on one side of the tail fin 5 inserted into the slot 31, and the plug-in portion 51 and the tail fin 5 form a limiting structure matching the slot 31. For example, the cross-section of the slot 31 is T-shaped, and the cross-sections of the plug-in portion 51 and the tail fin 5 are T-shaped. By forming a limiting fit between the plug-in portion 51 and the slot 31, the position of the tail fin 5 in the radial direction of the sealing assembly 3 is defined, preventing the tail fin 5 from falling off and causing the fire extinguishing bomb to land obliquely, affecting the accurate landing of the fire extinguishing bomb.

[0078] The top of the plug-in portion 51 fixes the cover plate 32 to the top of the sealing assembly 3 by screws to define the upper position of the tail fin 5 in the axial direction, and the lower position of the plug-in portion 51 is limited and fixed to the tail fin 5 by the bottom of the T-shaped limiting structure.

[0079] Providing the tail fin 5 on the outer wall of the sealing assembly 3 can ensure that the fire extinguishing bomb remains in a state with the warhead facing down when it falls after being thrown. Due to the characteristics of the warhead structure and shape of the fire extinguishing bomb, it can fall more stably; making the design of the spraying range of the fire extinguishing agent after the fire extinguishing bomb detonates more in line with requirements.

[0080] In one example, the detonation assembly 2 further includes pyrotechnic composition 22, an igniter 23, and a connection wire 24. The pyrotechnic composition 22 is filled in the central tube 21, the igniter 23 is embedded in the pyrotechnic composition 22, and the opposite ends of the connection wire 24 are respectively connected to the igniter 23 and the detonation control device 4.

[0081] As Figure 3 shown, the detonation assembly 2 includes pyrotechnic composition 22, an igniter 23, and a connection wire 24. The pyrotechnic composition 22 is filled in the central tube 21, and the igniter 23 is embedded in the pyrotechnic composition 22. By connecting the detonation control device 4 and the igniter 23 through the connection wire 24, the igniter 23 can be started by operating the detonation control device 4, and then the pyrotechnic composition 22 can be ignited by the igniter 23 to explode the housing 1. The explosion of the housing 1 causes the fire extinguishing agent to be sprayed, thus achieving effective fire extinguishing.

[0082] A large plug is provided between the first pipe section 212 and the second pipe section 213, and a small plug is provided between the second pipe section 213 and the third pipe section 214. As Figure 3 shown, the pyrotechnic composition 22 is located in the third pipe section 214 and is filled at the center of gravity position of the housing 1. A sealing filler is also filled in the central pipe 21, and the sealing filler is located between the pyrotechnic composition 22 and the small plug.

[0083] The pyrotechnic composition 22 is pressed and sealed into the central pipe 21 by the sealing filler. After filling the fire extinguishing agent inside the fire extinguishing bomb, it can effectively avoid situations such as the offset of the housing 1 after being impacted or the uneven spraying of the fire extinguishing agent after bursting.

[0084] In one example, the detonation control device 4 includes a switch 41, a plug-in safety pin 42, a buzzer 43, a digital tube 44, and an indicator light 45. The switch 41, the plug-in safety pin 42, the buzzer 43, the digital tube 44, and the indicator light 45 are all arranged on the sealing assembly 3. Reserved holes corresponding to the switch 41, the plug-in safety pin 42, the buzzer 43, the digital tube 44, and the indicator light 45 are opened on the cover plate 32, and the switch 41 and the plug-in safety pin 42 are respectively connected to the connecting wire 24.

[0085] As Figure 3 shown, the protruding part 12 and the central pipe 21 are connected by threads. The detonation controller includes a digital tube 44, a buzzer 43, a USB serial port 46, a plug-in safety pin 42, a green LED display light, and a red LED display light on the detonation controller. The micro toggle switch 41 protrudes from the reserved hole on the cover plate 32.

[0086] As Figure 2 shown, the switch 41 is a micro toggle switch 41. By setting the micro toggle switch 41 and the plug-in safety pin 42, the detonation program will only be started when both are in the on state, and accidental detonation will not occur due to external factors.

[0087] The detonation function of the throwable fire extinguishing bomb is mainly realized in the following ways:

[0088] After the micro toggle switch 41 is connected, the power supply of the circuit board chip is turned on and starts self-checking to ensure the reliable connection of the USB serial port 46. The digital tube 44 displays the working state of the detonation control device 4. The unmanned aerial vehicle altitude measurement controller sends delay data to the detonation control device 4. Before dropping the bomb, the unmanned aerial vehicle altitude measurement controller sends a charging command to make the switch 41 conduct to charge the firing capacitor, and sends an activation command to execute the activation program, and the fire extinguishing bomb is in the activated state. When the USB serial port 46 is unplugged, the chip of the detonation control device 4 starts timing. When the time arrives, the program makes the switch 41 conduct to discharge the igniter 23 and detonate the pyrotechnic composition 22.

[0089] This throwable fire extinguisher has the characteristics of simple operation and quick response. Users can quickly throw it to the fire source by drone from a long distance, greatly improving the timeliness and efficiency of fire extinguishing and effectively curbing the spread of fire in the initial stage of the fire. For example, in some fire areas that are difficult to approach or in emergency situations, there is no need for personnel to get close to the fire source, reducing the danger faced by rescue workers.

[0090] The fire extinguishing effect is remarkable. The fire extinguishing agent in the fire extinguisher can evenly and quickly cover the fire source to achieve efficient fire extinguishing. Compared with traditional fire extinguishing methods, it can control and extinguish the fire in a shorter time, reducing the losses caused by the fire.

[0091] The way to maximize the fire extinguishing area is achieved through the following methods:

[0092] Firstly, the timing function is used to control the fire extinguisher to detonate at a suitable height from the ground. The higher the detonation height, the larger the coverage range, and the smaller the concentration of the fire extinguishing agent acting on the fire scene. After detonation, the concentration of the fire extinguishing agent within the coverage range is proportional to the fire extinguishing efficiency. The higher the concentration within the coverage range, the better the fire extinguishing effect. Through the program control in the detonation control device 4, the fire extinguisher can explode at the optimal fire extinguishing height, maximizing the coverage area while ensuring the fire extinguishing effect.

[0093] The pyrotechnic composition 22 is stored at the center of gravity of the housing 1 and is pressed and sealed into the central tube 21 by a sealing filler. After filling the fire extinguishing agent in the accommodation cavity 11 inside the fire extinguisher, it can effectively prevent the housing 1 from shifting after being impacted or the fire extinguishing agent from being unevenly scattered after bursting.

[0094] Both the housing 1 and the central tube 21 are made of special materials, mainly composed of PE, PP, calcium carbonate, etc. They have high strength and will break into small pieces after bursting, without affecting the spraying direction and range of the fire extinguishing agent.

[0095] The end of the housing 1 is provided with a tail fin 5, which can ensure that the fire extinguisher keeps the warhead of the fire extinguisher facing down when falling after being thrown. Due to the characteristics of the warhead structure and shape of the fire extinguisher, it can fall more stably, making the design of the spillage and spraying range of the fire extinguishing agent after the fire extinguisher detonates more in line with the requirements.

[0096] If the height detected by the height measurement system does not meet the requirements and causes the fire extinguisher not to ignite in the air until it lands, then after the detonation control device 4 detects the impact force, it will start the emergency ignition method to achieve self-destruction upon landing.

[0097] The throwable fire extinguishing bomb has good versatility and adaptability. It can be used in a variety of different scenarios, such as forest fires, grassland fires, and oil depot fires, providing a reliable solution for firefighting in various complex environments. It can effectively and quickly deal with the situation where the fire scene has complex terrain and no roads, which makes firefighting difficult in the early stages of the fire.

[0098] In the embodiment of the present application, the fire extinguishing bomb is highly safe, ensuring that no accidental harm will be caused to the user and the surrounding environment during the throwing and use process, while also avoiding the risk of accidental leakage or improper use of the fire extinguishing agent. The way to ensure safe use is mainly achieved by the following ways:

[0099] By setting a buzzer 43, after the USB serial port 46 and the plug-in safety pin 42 are pulled out and the micro toggle switch 41 is turned on, the buzzer 43 starts to work, reminding the on-site personnel that the fire extinguishing bomb is in working state, and the frequency of the buzzer 43 is proportional to the detonation countdown. The higher the frequency of the buzzer 43, the less time is left in the countdown, and the shorter the time to detonation.

[0100] By setting up a safety distance delay protection, in order to protect the drone from detonating when the distance is less than the safety distance, the drone height must be greater than the safety height.

[0101] When starting up the machine, check whether the USB plug is securely connected. If an abnormal connection is found, an error message will be displayed and the detonation command will not be executed.

[0102] By setting the ignition capacitor charging command and activation command, detonation can only be performed after the charging command and activation command are issued.

[0103] By setting up multiple sealing rings and plug structures, the fire extinguishing agent and the pyrotechnic powder 22 will not leak. In other words, the pyrotechnic powder 22 and the sealing filler will not leak out of the small plug and the large plug position, and will not reach the cavity of the detonation controller. The fire extinguishing agent is sealed in the housing 1 and the center tube 21 by two sealing members, and will not leak into the center tube 21 to contaminate the pyrotechnic powder 22, nor will it leak into the detonation control device 4.

[0104] In the embodiment of the present application, the material of the shell 1 and the central tube 21 is non-toxic and harmless. After the fire extinguishing bomb is used, the fragments of the shell 1 and the central tube 21 do not cause environmental pollution. The cost of the fire extinguishing bomb is relatively low. The manufacturing process is simple, the material cost is relatively economical, it is convenient for large-scale production and promotion and application, and it helps to improve the overall fire safety level. And it has good storage and stability. When not in use, it can be stored for a long time without affecting its performance, and it is ready to respond to sudden fire situations at any time, providing a strong guarantee for fire prevention and emergency disposal.

[0105] In actual use, first, turn on the micro toggle switch 41, and then use a drone to drop the fire extinguishing bomb above the fire area. When dropping, the USB serial port 46 and the plug-and-pull safety pin 42 are detached from the drone, and the controller detects that the circuit is disconnected. The control chip starts timing. When the countdown ends, the pyrotechnic composition 22 is detonated. At this time, the fire extinguishing bomb is falling to the preset height from the ground. After the explosion, the fire extinguishing agent covers the ignition point to extinguish the fire.

[0106] In one example, a hook boss 121 is provided on the protruding portion 12, and the hook boss 121 is used to provide a hook 8.

[0107] As Figure 6 shown, when hanging vertically, fix the hook 8 on the drone unhooking device, and directly release the unhooking device to throw the fire extinguishing bomb. When hanging horizontally, hang the hook 6 on the drone unhooking device. The unhooking device releases the two hooks 6 at the same time, and the fire extinguishing bomb starts to fall. Under the action of the tail fin 5 cutting the airflow, the bomb body will gradually become vertical during the falling process.

[0108] The fire extinguishing agent includes dry powder fire extinguishing agent, water-based fire extinguishing agent, gel fire extinguishing agent, foam fire extinguishing agent, etc. Different fire extinguishing agents are filled according to different usage scenarios.

[0109] 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 throwing type fire extinguishing bomb, characterized in that: include: A shell (1), the shell (1) having a containing chamber (11), the containing chamber (11) being used to store a fire extinguishing agent, an ignition assembly (2) being arranged in the containing chamber (11), one end of the ignition assembly (2) extending out of the shell (1); A sealing component (3), the sealing component (3) being connected to the housing (1), the sealing component (3) sealing the accommodating cavity (11) and the detonating component (2), the sealing component (3) being provided with a detonating control device (4), the detonating control device (4) being connected to the detonating component (2).

2. The projectile-type fire extinguishing bomb according to claim 1, characterized in that: The detonation assembly (2) comprises a central tube (21), wherein the central tube (21) is arranged in the accommodating chamber (11), wherein one end of the central tube (21) extends out of the shell (1), and the end of the central tube (21) extending out of the shell (1) has a lap joint (211), and the lap joint (211) is lap jointed with the shell (1).

3. The projectile-type fire extinguishing bomb according to claim 2, characterized in that: The sealing component (3) is connected to the shell (1), and when the sealing component (3) is connected to the shell (1), the overlapping portion (211) is squeezed between the sealing component (3) and the shell (1).

4. The projectile-type fire-extinguishing bomb according to claim 2, characterized in that: The central pipe (21) comprises a first pipe section (212), a second pipe section (213) and a third pipe section (214), and opposite ends of the second pipe section (213) are respectively connected to the first pipe section (212) and the third pipe section (214); The diameter of the first pipe segment (212) is greater than the diameter of the third pipe segment (214), the diameter of one end of the second pipe segment (213) is the same as the diameter of the first pipe segment (212), and the diameter of the other end of the second pipe segment (213) is the same as the diameter of the third pipe segment (214).

5. The projectile-type fire-extinguishing bomb according to claim 2, characterized in that: One end of the central tube (21) extending out of the accommodating cavity (11) is provided with a concave platform, and one end of the central tube (21) extending out of the accommodating cavity (11) is sleeved with a sealing member, and the sealing member is embedded in the concave platform.

6. The projectile-type fire-extinguishing bomb according to claim 5, characterized in that: The concave platform comprises: A first concave platform (215), wherein a first sealing member (2151) is embedded in the first concave platform (215), and the first sealing member (2151) is abutted between the overlapping portion (211) and the housing (1); A second concave platform (216), wherein a second sealing member (2161) is embedded in the second concave platform (216), and the first sealing member (2151) is abutted between the central tube (21) and the shell (1).

7. The projectile-type fire-extinguishing bomb according to claim 2, characterized in that: The sealing component (3) comprises a slot (31) and a cover plate (32); a plurality of the slots (31) are arranged along the circumferential direction of the sealing component (3); and the cover plate (32) is connected to the sealing component (3).

8. The projectile-type fire-extinguishing bomb according to claim 7, characterized in that: The invention also comprises a tail wing (5), wherein a plug-in portion (51) is provided on one side of the tail wing (5), wherein the plug-in portion (51) is snap-fitted into the slot (31), wherein the slot (31) and the plug-in portion (51) form a limiting fit, and the cover plate (32) can limit the axial direction of the tail wing (5).

9. The projectile-type fire-extinguishing bomb according to claim 2, characterized in that: The detonation assembly (2) further comprises pyrotechnic powder (22), an igniter (23) and a connecting wire (24); the pyrotechnic powder (22) is filled in the central tube (21); the igniter (23) is buried in the pyrotechnic powder (22); and opposite ends of the connecting wire (24) are respectively connected to the igniter (23) and the detonation control device (4).

10. The projectile-type fire extinguishing bomb according to claim 1, characterized in that: The detonation control device (4) comprises a switch (41), a plug-in safety pin (42), a buzzer (43), a digital tube (44) and an indicator light (45); the switch (41), the plug-in safety pin (42), the buzzer (43), the digital tube (44) and the indicator light (45) are all arranged on the sealing component (3).

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