Fire extinguishing bomb for forest fire extinguishing

Abstract

The utility model belongs to the technical field of fire extinguishing bombs, and particularly relates to a fire extinguishing bomb for forest fire extinguishing, which comprises a rocket engine component and a bomb body which are axially connected, an aluminum foil plate, a fire extinguishing dry powder cluster, a piston, a gas production mechanism and a firing mechanism are sequentially arranged in the spray pipe opening and the magazine, one end of the rocket engine component is detachably installed at the tail end of the firing mechanism, and the fire extinguishing dry powder cluster is sprayed outwards through the spray pipe opening based on gas excitation; by means of the aluminum foil plate, the fire extinguishing dry powder assembly, the piston, the gas production mechanism and the firing mechanism which are additionally arranged in the magazine, the mode that the piston pushes a fire extinguishing agent is adopted, compared with the mode of blasting spraying and the like, the spraying time is prolonged, impact in the spraying process is reduced, and the fire extinguishing effect is improved. And fragments and shock waves are not generated in the spraying process.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguishing bomb technology, specifically relating to a fire extinguishing bomb for forest fire suppression. Background Technology

[0002] Fire extinguishing bombs can be used for forest fire fighting. Fire extinguishing bombs consist of a bomb body structure, fire extinguishing agent, propulsion device, mounting frame, etc. The bomb body structure usually includes wings, lifting lugs and bomb body. The inner surface of the bomb body is provided with fragmentation grooves. This design makes the fire extinguishing bomb explosive, and after explosion, the fire extinguishing agent is evenly distributed over a large area.

[0003] However, existing fire extinguishing bombs generate impact force during use and produce a large number of flying fragments when they explode, which poses a certain danger during use. At the same time, when the fire extinguishing bomb explodes, the igniter will produce an open flame, causing the fire extinguishing bomb itself to pose a fire hazard, which greatly reduces the practicality of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a fire extinguishing bomb for forest fire suppression, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire extinguishing projectile for forest fire suppression, comprising: an axially connected rocket engine component and a projectile body, wherein a nozzle and a magazine are sequentially provided along the axial direction in the projectile body, and an aluminum foil plate, a fire extinguishing dry powder pellet, a piston, a gas generation mechanism and a firing mechanism are sequentially provided in the nozzle and the magazine, wherein one end of the rocket engine component is detachably installed at the tail end of the firing mechanism, and the fire extinguishing dry powder pellet is ejected outward through the nozzle based on gas excitation.

[0006] Preferably, the end of the projectile body away from the rocket engine component is also provided with a backstop nozzle, and the outer wall of the backstop nozzle has multiple nozzle holes running from the outside to the inside. The end of the projectile body is provided with a docking head, and one end of the backstop nozzle is screwed onto the docking head.

[0007] Preferably, the end of the warhead away from the anti-recoil nozzle is provided with a rear cover for sealing the warhead compartment. The rear cover has a groove for accommodating rocket engine components. One end of the rocket engine components is detachably installed in the groove. The groove has an installation compartment for accommodating the firing mechanism. An excitation gap is formed between the groove and the rocket engine components to excite the firing mechanism by impact. One end of the firing mechanism abuts against a baffle. The gas generation mechanism is located between the piston and the rear cover.

[0008] Preferably, the piston has an air chamber hole in the axial direction near the rear cover, the rear cover has a shaft extending into the air chamber hole, and the gas generation mechanism is installed between the air chamber hole and the shaft.

[0009] Preferably, the gas generating mechanism includes gunpowder and a primer, the gunpowder is filled in the gas chamber hole, the shaft has a through hole extending into the mounting chamber, the primer is embedded in the end of the through hole, and the firing end of the firing mechanism is disposed in the through hole.

[0010] Preferably, the firing mechanism includes an integrally formed baffle and an impact rod, the baffle and the impact rod forming a T-shaped structure, the baffle and the impact rod being sequentially installed in the mounting chamber and the through hole, and the firing end being formed on the impact rod, the mounting chamber being provided with a spring connected to the baffle, and the spring being sleeved on the impact rod.

[0011] Preferably, the inner wall of the installation compartment is further provided with a limiting block for limiting the position of the baffle, and one end of the limiting block abuts against the side of the baffle near the installation compartment.

[0012] Preferably, the inner wall of the groove is provided with a plurality of protrusions at equal intervals along the circumference, and the outer wall of the end of the rocket engine component is provided with an annular groove to accommodate the plurality of protrusions.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] (1) This utility model uses an aluminum foil plate, a fire extinguishing dry powder component, a piston, a gas generation mechanism and a firing mechanism added to the ammunition magazine to drive the fire extinguishing agent by piston. Compared with the blasting spraying method, this extends the spraying time, reduces the impact during the spraying process, and prevents the generation of fragments and shock waves during the spraying process.

[0015] (2) By adding a backstop nozzle, the present invention avoids clogging the nozzle when the projectile comes into contact with an object, making it easier for the fire extinguishing dry powder to be sprayed outward.

[0016] (3) By adding a piston, shaft and gas generation hole, this utility model can seal the gas in the power component during the spraying process when the piston is driven by gunpowder, so that there is no gas leakage and the fire hazard is avoided. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a front view of the back cover of this utility model;

[0020] In the diagram: 1. Rocket engine component; 2. Projectile body; 3. Anti-recoil nozzle; 4. Nozzle; 5. Aluminum foil plate; 6. Connector; 7. Fire extinguishing dry powder pellet; 8. Piston; 9. Projectile chamber; 10. Nozzle nozzle; 11. Rear cover; 12. Groove; 13. Protrusion; 14. Annular groove; 15. Baffle; 16. Limiting block; 17. Mounting chamber; 18. Spring; 19. Impact rod; 20. Shaft; 21. Primer; 22. Gunpowder; 23. Gas chamber hole; 24. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] refer to Figure 1 As shown, the present invention provides a fire extinguishing projectile for forest fire suppression, comprising: a rocket engine component 1 and a projectile body 2 connected axially. The projectile body 2 has a nozzle 10 and a magazine 9 sequentially arranged along the axial direction. The nozzle 10 and the magazine 9 are sequentially provided with an aluminum foil plate 5, a fire extinguishing dry powder pellet 7, a piston 8, a gas generation mechanism, and a firing mechanism. One end of the rocket engine component 1 is detachably installed at the tail end of the firing mechanism. The fire extinguishing dry powder pellet 7 is sprayed outward through the nozzle 10 based on gas excitation.

[0023] Combination Figure 1-3 As shown, the end of the warhead away from the anti-recoil nozzle 3 is provided with a rear cover 11 to seal the warhead compartment 9. The rear cover 11 has a groove 12 for accommodating the rocket engine component 1. One end of the rocket engine component 1 is detachably installed in the groove 12. The groove 12 has an installation compartment 17 for accommodating the firing mechanism. An excitation gap is formed between the groove 12 and the rocket engine component 1 to excite the firing mechanism by impact. One end of the firing mechanism abuts against the baffle 15. The gas generation mechanism is located between the piston 8 and the rear cover 11.

[0024] As described above, using the projectile 2 and rocket engine component 1 provided by this utility model, the method of separating the gas propulsion component and the extinguishing agent in sections by using piston 8 avoids direct contact between the extinguishing agent and the gas. The fire extinguishing projectile is mainly composed of a fuse, a payload section, and an engine. The payload section is filled with fire extinguishing dry powder pellets 7. When the gas generating mechanism is activated by the firing mechanism, the generated gas drives piston 8 to push outward in the projectile chamber 9, thereby driving the fire extinguishing dry powder pellets 7 to be sprayed outward. During this process, the aluminum foil plate 5 is broken, which facilitates the spraying outward of the fire extinguishing dry powder pellets 7.

[0025] In this invention, fire extinguishing dry powder pellets 7 are used as the fire extinguishing base material. Other fire extinguishing materials, such as foam fire extinguishing agents and water-based fire extinguishing agents, can also be used.

[0026] In this utility model, combined with Figure 1 As shown, the projectile body 2 of this embodiment is also provided with a backstop nozzle 3 at the end away from the rocket engine component 1. Multiple nozzle holes 4 are passed through the outer wall of the backstop nozzle 3 from the outside to the inside. The end of the projectile body 2 is provided with a connector 6, and one end of the backstop nozzle 3 is screwed onto the connector 6.

[0027] As described above, by using the anti-reverse nozzle 3 provided by this utility model to protect the nozzle 10, after encountering an impact object, the fire extinguishing dry powder 7 can be easily sprayed out through the nozzle 4, avoiding the nozzle 10 from being blocked.

[0028] In this utility model, combined with Figure 2 As shown, the piston 8 in this embodiment also has an air chamber hole 23 in the axial direction near the rear cover 11. The rear cover 11 is provided with a shaft 20 extending into the air chamber hole 23. The gas generation mechanism is installed between the air chamber hole 23 and the shaft 20.

[0029] Combination Figure 2 As shown, the gas generating mechanism includes gunpowder 22 and primer 21. The gunpowder 22 is filled in the gas chamber hole 23. A through hole 24 extending into the mounting chamber 17 is passed through the shaft 20. The primer 21 is embedded in the end of the through hole 24. The firing end of the firing mechanism is located in the through hole 24.

[0030] As described above, when the air chamber hole 23 and shaft 20 provided by this utility model are used, after the shaft 20 is inserted into the air chamber hole 23, a sealed chamber is formed between the air chamber hole 23 and the shaft 20. The chamber is filled with gunpowder 22. When the gunpowder 22 is ignited, a large amount of gas will be generated, thereby pushing the piston 8 through the generated gas.

[0031] In this utility model, combined with Figure 2-3 As shown, the firing mechanism of this embodiment includes an integrally formed baffle 15 and an impact rod 19. The baffle 15 and the impact rod 19 form a T-shaped structure. The baffle 15 and the impact rod 19 are installed in the mounting chamber 17 and the through hole 24 in sequence, and the firing end is formed on the impact rod 19. The mounting chamber 17 is provided with a spring 18 connected to the baffle 15, and the spring 18 is sleeved on the impact rod 19.

[0032] As described above, when the projectile 2 is impacted, the rocket engine component 1 contacts the baffle 15, causing the baffle 15 to enter the mounting chamber 17. This causes the impact rod 19 to push against the primer 21 in the through hole 24, thereby impacting the primer 21 and igniting it. The ignited primer 21 then ignites the gunpowder 22, which burns and produces a large amount of gas. This causes the piston 8 to be pushed outward in the magazine 9, facilitating the ejection of the fire extinguishing dry powder 7. The spring force of the spring 18 keeps the baffle 15 within the mounting chamber 17, preventing it from detaching and also preventing the impact rod 19 from contacting the primer 21 without external force.

[0033] Furthermore, to prevent the baffle 15 from accidentally entering the installation chamber 17, refer to Figure 2-3 As shown, the inner wall of the installation chamber 17 is also provided with a limiting block 16 to limit the position of the baffle 15. One end of the limiting block 16 abuts against the side of the baffle 15 near the installation chamber 17. The limiting block 16 prevents the baffle 15 from accidentally entering the installation chamber 17. When the projectile 2 impacts, the rocket engine component 1 is forced against the baffle 15, and the baffle 15 pushes the limiting block 16, causing the limiting block 16 to disengage from the installation chamber 17, which facilitates the activation of the primer 21 by the impact rod 19.

[0034] Furthermore, to facilitate the detachable mounting of the rocket engine component 1 onto the rear cover 11, refer to... Figure 2-3 As shown, multiple protrusions 13 are evenly spaced along the circumference of the inner wall of the groove 12, and an annular groove 14 is formed on the outer wall of the end of the rocket engine component 1 to accommodate the multiple protrusions 13. When the rocket engine component 1 is inserted into the groove 12, the multiple protrusions 13 in the groove 12 are respectively engaged in the annular groove 14, thus completing the connection between the projectile 2 and the rocket engine component 1. When the projectile 2 collides, the excitation gap is 0, thereby driving the baffle 15 into the mounting chamber 17, which in turn drives the impact rod 19 to impact the primer 21, thereby realizing the impact excitation of the primer 21.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing bomb for forest fire extinguishing, characterized by comprising: Include: Axial connection rocket engine parts (1) and the bullet body (2), the bullet body (2) is sequentially provided with nozzle (10) and shell magazine (9) in the axial direction, the nozzle (10) and the shell magazine (9) are sequentially provided with aluminum foil plate (5), fire extinguishing dry powder (7), piston (8), gas generating mechanism and firing mechanism, one end of the rocket engine parts (1) is detachably mounted at the tail end of the firing mechanism, based on gas excitation makes the fire extinguishing dry powder (7) through the nozzle (10) and spray outwards.

2. The fire extinguishing bomb for forest fire according to claim 1, wherein: The bullet body (2) is further provided with a backstop nozzle (3) away from the rocket engine parts (1), a plurality of spray holes (4) are penetrated from the outside to the inside on the outer wall of the backstop nozzle (3), the end of the bullet body (2) is provided with a butt joint (6), one end of the backstop nozzle (3) is screwed on the butt joint (6).

3. The fire extinguishing bomb for forest fire according to claim 2, wherein: The end of the bullet away from the backstop nozzle (3) is provided with a rear cover (11) for plugging the shell magazine (9), the rear cover (11) is provided with a recess (12) for accommodating the rocket engine parts (1), one end of the rocket engine parts (1) is detachably mounted in the recess (12), the recess (12) is provided with a mounting bin (17) for accommodating the firing mechanism, the recess (12) and the rocket engine parts (1) form an excitation gap for impacting and exciting the firing mechanism, one end of the firing mechanism abuts against the baffle (15), and the gas generating mechanism is arranged between the piston (8) and the rear cover (11).

4. The fire extinguishing bomb for forest fire according to claim 3, wherein: The axial direction of the piston (8) close to the rear cover (11) side is further provided with a gas bin hole (23), the rear cover (11) is provided with a shaft (20) extending into the gas bin hole (23), and the gas generating mechanism is mounted between the gas bin hole (23) and the shaft (20).

5. The fire extinguishing bomb for forest fire according to claim 4, wherein: The gas generating mechanism includes gunpowder (22) and primer (21), the gunpowder (22) is filled in the gas bin hole (23), the shaft (20) is penetrated with a through hole (24) extending into the mounting bin (17), the primer (21) is embedded and mounted at the end of the through hole (24), and the excitation end of the firing mechanism is arranged in the through hole (24).

6. The fire extinguishing bomb for forest fire according to claim 5, wherein: The firing mechanism includes an integrally formed baffle (15) and an impact rod (19), the baffle (15) and the impact rod (19) form a T-shaped structure, the baffle (15) and the impact rod (19) are sequentially mounted in the mounting bin (17) and the through hole (24), and the excitation end is formed on the impact rod (19), the mounting bin (17) is provided with a spring (18) connected with the baffle (15), and the spring (18) is sleeved on the impact rod (19).

7. The fire extinguishing bomb for forest fire according to claim 6, wherein: The inner wall of the mounting bin (17) is further provided with a limiting block (16) for limiting the position of the baffle (15), one end of the limiting block (16) abuts against the side of the baffle (15) close to the mounting bin (17).

8. The fire extinguishing bomb for forest fire according to claim 3, wherein: The inner wall of the recess (12) is provided with a plurality of protrusions (13) at equal distance along the circumference, and the outer wall of the end of the rocket engine parts (1) is provided with a ring groove (14) for accommodating the plurality of protrusions (13).

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