Fire extinguishing bomb for fire fighting

Abstract

The utility model discloses a fire extinguishing bomb for fire fighting and belongs to the technical field of fire extinguishing bombs for fire fighting. Comprising an outer cylinder body, a storage cavity is formed in the outer cylinder body and used for storing fire extinguishing materials, a detonating barrel is detachably arranged on one side of the storage cavity, a gas detonating device is arranged in the detonating barrel and used for injecting gas into the storage cavity to enable the storage cavity to explode under high pressure, and a trigger head used for detonating the gas detonating device is arranged at the end of the outer cylinder body. According to the fire extinguishing bomb, explosion is achieved in a gas explosion mode, after the bottom of the gas cylinder is punctured through the ejector pin, gas enters the storage cavity, high pressure is instantly generated in the storage cavity, then the storage cavity explodes, gunpowder does not need to be filled, and potential safety hazards do not exist during storage and transportation.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing bombs, in particular to a fire extinguishing bomb for fire fighting. Background Technique

[0002] A forest fire refers to a forest fire behavior that gets out of human control and spreads freely in the forest land, causing certain harm and losses to the forest, the forest ecosystem and humans. A forest fire is a natural disaster with strong suddenness, great destructiveness and relatively difficult disposal and rescue. Throwing forest fire extinguishing bombs from a distance has been used as an effective fire extinguishing means.

[0003] Existing fire extinguishing bombs all use gunpowder as the power source, such as traditional fire extinguishing grenade launchers, etc. There are certain safety hazards during their storage, transportation, assembly and launch. For example, there is a risk of explosion if there is static electricity during assembly and transportation, and there is a risk of bursting during launch, etc., which is not conducive to civilian production and promotion.

[0004] Therefore, we have designed and developed a new type of fire extinguishing bomb for fire fighting. It has no gunpowder inside and can be thrown by a throwing device. There will be no series of safety hazards brought by gunpowder. It can be assembled on site, and the internal fire extinguishing materials can be replaced according to needs. It can be easily applied to forest fires and has high practical performance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fire extinguishing bomb for fire fighting to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fire extinguishing bomb for fire fighting includes an outer cylinder body. A storage cavity is arranged inside the outer cylinder body for storing fire extinguishing materials. One side of the storage cavity is detachably provided with a detonating cylinder. A gas detonating device is arranged inside the detonating cylinder for injecting gas into the storage cavity to cause the storage cavity to explode under high pressure. A trigger head for triggering the gas detonating device is arranged at the end of the outer cylinder body.

[0008] As a further preferred scheme of the utility model: The gas detonating device includes a gas cylinder arranged inside the detonating cylinder. A thimble is arranged at the inner bottom of the detonating cylinder. A thimble spring is arranged between the thimble and the bottom of the gas cylinder. An air hole communicating with the storage cavity is opened at the bottom of the detonating cylinder.

[0009] As a further preferred scheme of the utility model: A connecting block is threadedly connected to the end of the outer cylinder body. The bottom of the connecting block is threadedly connected to the detonating cylinder. An installation hole is opened at the bottom of the connecting block. A sealing push block contacting the gas cylinder is slidably arranged inside the installation hole. The top of the sealing push block is connected with a connecting rod. The connecting rod penetrates through the connecting block and is connected with the trigger head. A trigger spring sleeved on the connecting rod is arranged between the trigger head and the connecting block.

[0010] As a further preferred solution of the present utility model: A safety pin for fixing the connecting rod is inserted on the connecting block.

[0011] As a further preferred solution of the present utility model: A plurality of frangible grooves are formed on the outer wall of the outer cylinder.

[0012] As a further preferred solution of the present utility model: A collar is slidably sleeved on the outside of the outer cylinder, and a plurality of fins are uniformly arranged on the collar.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The fire extinguishing bomb realizes explosion by means of air explosion. After the bottom of the gas cylinder is punctured by the thimble, gas enters the storage cavity, causing high pressure to be generated instantaneously in the storage cavity, and then causing the storage cavity to explode. There is no need to fill gunpowder, and there will be no safety hazards during storage and transportation;

[0015] The detonating tube and the connecting block at the top of the fire extinguishing bomb are both detachably connected, and can be assembled on-site according to needs and different fire extinguishing materials can be replaced. At the same time, accessories such as the detonating tube and the connecting block left after explosion can be recycled, with strong practicability;

[0016] By designing frangible grooves on the surface of the outer cylinder, the outer cylinder can explode rapidly when filled with high-pressure gas inside, achieving the effect of rapid fire extinguishing;

[0017] By designing the sliding collar and fins, the stability of the fire extinguishing bomb during throwing and flying can be ensured. The sliding design of the collar can make the collar located at the top of the fire extinguishing bomb during throwing, so that the fins do not affect the installation of the fire extinguishing bomb in the launcher, and the design is scientific and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the fire extinguishing bomb for fire fighting of the present utility model;

[0019] Figure 2 is Figure 1 an enlarged schematic structural view of the trigger head in

[0020] Figure 3 is a schematic structural view of the gas detonation device of the fire extinguishing bomb for fire fighting of the present utility model;

[0021] Figure 4 is a schematic explosion structure view of the gas detonation device of the fire extinguishing bomb for fire fighting of the present utility model;

[0022] Figure 5 is a schematic structural view of the bottom of the detonating tube of the fire extinguishing bomb for fire fighting of the present utility model;

[0023] Figure 6Schematic structural diagram of the ring and the bottom of the tail fin of the fire extinguishing bomb for the utility model

[0024] Figure 7 Schematic side view structural diagram of the ring and the tail fin of the fire extinguishing bomb for the utility model

[0025] Figure 8 Schematic side view structural diagram of the outer cylinder of the fire extinguishing bomb for the utility model

[0026] In the figure: 1. Outer cylinder; 2. Detonation cylinder; 3. Gas cylinder; 4. Thumb spring; 5. Thumb pin; 6. Air hole; 7. Connecting block; 8. Trigger head; 9. Connecting rod; 10. Trigger spring; 11. Safety pin; 12. Sealing push block; 13. Storage cavity; 14. Tail fin; 15. Ring; 16. Mounting hole; 17. Pin hole; 18. Fracture groove; 19. Clamping projection. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0028] Please refer to Figure 1-8 , this embodiment provides a fire extinguishing bomb for fire fighting, including an outer cylinder 1. A storage cavity 13 is arranged inside the outer cylinder 1 for storing fire extinguishing materials. A detonation cylinder 2 is detachably arranged on one side of the storage cavity 13. A gas detonation device is arranged inside the detonation cylinder 2 for injecting gas into the storage cavity 13 to cause the storage cavity 13 to explode under high pressure. Specifically, as Figure 2 - Figure 5As shown in the figure, the gas detonation device includes a gas cylinder 3 disposed within a detonation cylinder 2. The gas cylinder 3 is preferably a high-pressure gas cylinder, and the selection of the gas inside it can be determined according to the needs of those skilled in the art. A thimble 5 is provided at the inner bottom of the detonation cylinder 2, and a thimble spring 4 is disposed between the thimble 5 and the bottom of the gas cylinder 3. It should be noted that the bottom of the gas cylinder 3 should be designed to be easily punctured under a certain pressure, which is common knowledge familiar to those skilled in the art and will not be elaborated further. An air hole 6 communicating with the storage cavity 13 is opened at the bottom of the detonation cylinder 2. A trigger head 8 for triggering the gas detonation device is further provided at the end of the outer cylinder 1. Specifically, a connecting block 7 is threadedly connected to the end of the outer cylinder 1, and the bottom of the connecting block 7 is threadedly connected to the detonation cylinder 2. An installation hole 16 is opened at the bottom of the connecting block 7, and a sealing push block 12 in contact with the gas cylinder 3 is slidably disposed within the installation hole 16. A connecting rod 9 is connected to the top of the sealing push block 12. The connecting rod 9 penetrates through the connecting block 7 and is connected to the trigger head 8. A trigger spring 10 sleeved on the connecting rod 9 is disposed between the trigger head 8 and the connecting block 7.

[0029] In order to prevent the trigger head 8 from pushing the sealing push block 12 to move after being squeezed during transportation, a safety structure should be designed. Specifically, a safety pin 11 for fixing the connecting rod 9 is inserted into the connecting block 7. As a conventional design, during processing, small holes 17 corresponding to the safety pin 11 should be opened on the connecting block 7 and the connecting rod 9.

[0030] As Figure 8 shown, in order to enable the outer cylinder 1 to explode quickly, a plurality of easy-fracture grooves 18 are opened on the outer wall of the outer cylinder 1.

[0031] In addition, as Figure 1 、 Figure 6 、 Figure 7 and Figure 8 shown, in order to enable the fire extinguishing bomb to have good stability during flight, a collar 15 is slidably sleeved outside the outer cylinder 1, and a plurality of tail fins 14 are uniformly disposed on the collar 15. In order to prevent the collar 15 from slipping off the outer cylinder 1, as a conventional design familiar to those skilled in the art, a convex 19 for resisting the collar 15 should be designed at the bottom of the outer cylinder 1, and the connecting block 7 can be designed with a raised circle at the top to limit the collar 15 at the top of the outer cylinder 1, which is a conventional setting familiar to those skilled in the art and will not be elaborated further in this application.

[0032] In order to enable those skilled in the art to better understand this application, the application principle of this fire extinguishing bomb will be elaborated below:

[0033] Assembly principle:

[0034] As Figure 1As shown in the figure, fill the fire extinguishing material into the storage cavity 13 of the outer cylinder 1. Slip the thimble spring 4 over the bottom of the gas cylinder 3, insert the gas cylinder 3 into the detonating cylinder 2, and make the bottom of the thimble spring 4 fit over the thimble 5. Then thread the connecting block 7 with the trigger head 8 onto the detonating cylinder 2. At this time, the sealing push block 12 is located in the mounting hole 16, ensuring the sealing of the mounting hole 16. At the same time, the safety pin 11 is also inserted into the pin hole 17, so that the trigger head 8 will not move after being impacted. Slip the collar 15 over the outer cylinder 1, then insert the detonating cylinder 2 into the outer cylinder 1 and thread the connecting block 7 onto the outer cylinder 1, thus completing the installation of the fire extinguishing bomb.

[0035] Usage method:

[0036] This fire extinguishing bomb needs to be used in conjunction with a traditional launcher. When in use, pull out the safety pin 11, and slide the tail fin 14 through the collar 15 to the Figure 1 dotted line shown in the figure, that is, the top of the outer cylinder 1. Insert the outer cylinder 1 into the launcher, and the launcher throws out the fire extinguishing bomb. Under the action of inertia, the collar 15 drives the tail fin 14 to slide to the tail of the outer cylinder 1, ensuring the stability of the fire extinguishing bomb during flight;

[0037] When the fire extinguishing bomb lands, the trigger head 8 comes into contact with the ground and is squeezed and impacted, compressing the trigger spring 10. The connecting rod 9 pushes the sealing push block 12 to squeeze the gas cylinder 3, and the thimble spring 4 is compressed. The bottom of the gas cylinder 3 moves towards the thimble 5, and the thimble 5 pierces the bottom of the gas cylinder 3. The high-pressure gas inside the gas cylinder 3 quickly leaks out and enters the storage cavity 3 quickly through the air hole 6, generating high pressure, causing the outer cylinder 1 to explode rapidly, and the internal fire extinguishing material to burst and fly into the environment, achieving fire extinguishing.

[0038] It should be noted that in order to prevent air leakage at the top of the fire extinguishing bomb, as Figure 4 shown in the figure, the sealing push block 12 is designed with a conical surface. When the gas cylinder 3 is punctured, with the cooperation of the gas and the two springs, it can ensure that the sealing push block 12 tightly returns to the mounting hole 16 to play a sealing role. Its conical surface can improve the sealing performance, which is a conventional design familiar to those skilled in the art and will not be elaborated here; in actual processing, a sealing ring can also be installed at the upper end inside the mounting hole 16, which is a conventional design and will not be elaborated here.

[0039] It should be noted that the above embodiments only describe the technical solutions and technical features of the present application specifically and clearly. For those skilled in the art, the solutions or features that belong to the prior art or common general knowledge are not described in detail in the above embodiments.

[0040] In addition, the technical solutions of the present application are not limited to the above embodiments. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A fire extinguishing bomb for fire fighting, characterized in that, It includes an outer cylinder body (1). A storage cavity (13) is arranged inside the outer cylinder body (1) for storing fire extinguishing materials. A detonating cylinder (2) is detachably arranged on one side of the storage cavity (13). A gas detonation device is arranged inside the detonating cylinder (2) for injecting gas into the storage cavity (13) to cause the storage cavity (13) to explode under high pressure. A trigger head (8) for triggering the gas detonation device is arranged at the end of the outer cylinder body (1); the gas detonation device includes a gas cylinder (3) arranged inside the detonating cylinder (2). A thimble (5) is arranged at the inner bottom of the detonating cylinder (2). A thimble spring (4) is arranged between the thimble (5) and the bottom of the gas cylinder (3). An air hole (6) communicating with the storage cavity (13) is opened at the bottom of the detonating cylinder (2); the end of the outer cylinder body (1) is threadedly connected with a connecting block (7). The bottom of the connecting block (7) is threadedly connected with the detonating cylinder (2). An installation hole (16) is opened at the bottom of the connecting block (7). A sealing push block (12) contacting the gas cylinder (3) is slidably arranged inside the installation hole (16). A connecting rod (9) is connected to the top of the sealing push block (12). The connecting rod (9) penetrates through the connecting block (7) and is connected to the trigger head (8). A trigger spring (10) sleeved on the connecting rod (9) is arranged between the trigger head (8) and the connecting block (7).

2. The fire extinguishing bomb for fire fighting according to claim 1, characterized in that, A safety pin (11) for fixing the connecting rod (9) is inserted on the connecting block (7).

3. The fire extinguishing bomb for fire fighting according to claim 1, characterized in that, A plurality of frangible grooves (18) are opened on the outer wall of the outer cylinder body (1).

4. The fire extinguishing bomb for fire fighting according to claim 1, characterized in that, A collar (15) is slidably sleeved on the outside of the outer cylinder body (1). A plurality of fins (14) are uniformly arranged on the collar (15).

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