CN105664407B

CN105664407B - Fire-fighting cannonball

Info

Publication number: CN105664407B
Application number: CN201610212100.XA
Authority: CN
Inventors: 张正泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-07
Filing date: 2016-04-07
Publication date: 2021-04-30
Anticipated expiration: 2036-04-07
Also published as: CN105664407A

Abstract

The invention relates to a fire-fighting shell, which comprises a shell assembly and a propelling assembly, wherein the shell assembly comprises a shell, an explosive, a rear cylinder, a front cylinder and a plurality of fins, the shell is made of fire-fighting materials, a central cavity is arranged in the shell, and the explosive is arranged in the central cavity, and the fire-fighting shell is characterized in that: the propulsion assembly consists of a bottom plate, a piston, a return spring and a plurality of connecting plates, the rear ends of the connecting plates are uniformly fixed on the bottom plate, and the front ends of the connecting plates are fixed with the fins through connecting steel wires; the tail end of the rear barrel is filled with ignition powder, the ignition powder is connected with the explosive through a delay lead, the piston is fixed in the center of the bottom plate and used for extruding and igniting the ignition powder, and the return spring is positioned between the bottom plate and the wing plate, so that the safety and the separation of the projectile body assembly and the propelling ignition assembly after the projectile body is taken out of the chamber are realized. The fire-fighting shell plays a role in safety through the limiting action of the reset spring and the connecting steel wire, and is beneficial to increasing the range of the fire-fighting shell through the thrust action of the propelling assembly on the rear barrel and the wing. Has the advantages of simple structure, good fire extinguishing effect, obvious beneficial effect and suitability for application and popularization.

Description

Fire-fighting cannonball

Technical Field

The present invention relates to a fire-fighting cannonball, and more particularly, to a fire-fighting cannonball capable of spraying a fire-fighting substance onto the surface of a burning object.

Background

In a common way, people have no condition of water and fire, and how to ensure the life and property safety of people to the maximum extent in a fire is the main purpose of fire fighting. However, in the case of a fire, the fire extinguishing effect may not be achieved by the conventional fire extinguishing system in association with the urbanization and the building of a factory building. For example, when high-rise buildings in towns catch fire, the existing fire-extinguishing water guns may not spray the fire; when a factory building with explosion danger catches fire, the fire extinguishing device is not easy to be close to a fire catching area for fire extinguishing operation, and at the moment, a fire-fighting shell capable of projecting remotely can be adopted, so that a good fire extinguishing effect can be achieved. For example, patent No. 2015109686317 entitled comprehensive multipurpose fire engine discloses a fire extinguishing device using a fire-fighting shell.

Disclosure of Invention

The present invention has been made to overcome the above-mentioned problems, and an object of the present invention is to provide a fire fighting bomb capable of spraying a fire fighting material onto the surface of a burning object.

The invention relates to a fire-fighting shell, which comprises a shell assembly and a propelling assembly, wherein the shell assembly consists of a shell, explosive, a rear cylinder, a front cylinder and a plurality of fins, the shell consists of fire-fighting substances, a central cavity is formed in the shell, the explosive is arranged in the central cavity, the rear cylinder and the front cylinder are respectively positioned at the rear part and the front part of the shell and are communicated with the central cavity, and the fins are uniformly fixed on the outer surface of the rear cylinder; the method is characterized in that: the propulsion assembly consists of a bottom plate, a piston, a return spring and a plurality of connecting plates, the rear ends of the connecting plates are uniformly fixed on the bottom plate, and the front ends of the connecting plates are fixed with the fins through connecting steel wires; the tail end of the rear barrel is filled with ignition powder, the ignition powder is connected with the explosive through a delay lead, the piston is fixed in the center of the bottom plate and used for extruding and igniting the ignition powder, and the return spring is located between the bottom plate and the wing or the rear barrel and used for ensuring that the ignition powder is not extruded under the condition of no external force and simultaneously separating the propelling assembly from the projectile body assembly after the projectile body is taken out of the chamber.

The fire-fighting shell comprises a front barrel, a rear barrel, a fixing ring, a piston, an arc cap, a reset spring, a piston and a shell, wherein the front barrel is provided with an ignition device consisting of a priming powder, a fixing ring, a piston, an arc cap and a reset spring; the rear end of the piston faces the ignition powder, the front end of the piston is fixed with an arc cap, and a return spring is arranged between the arc cap and the fixed ring; the front cylinder is provided with a safety lock bolt penetrating through the piston.

The fire-fighting cannonball is characterized in that a plurality of air holes communicated with the outside are formed in the piston.

According to the fire-fighting cannonball, the partition plate is arranged on one side, close to the explosive, of the priming powder, and the center of the partition plate is provided with the through hole.

The invention relates to a fire-fighting cannonball, which is a fire-fighting cannonball consisting of a bomb assembly and a propelling assembly, wherein two groups of assemblies are separated after being ejected; the ignition devices at the front end and the rear end of the projectile body assembly are used for impact detonation in the front and for propulsion detonation and delayed detonation of explosives in the projectile body, so that two blasting forms are formed to ensure the detonation of the projectile body.

The invention has the beneficial effects that: the fire-fighting shell comprises a shell body and a shell body, wherein the shell body is made of fire-fighting substances, explosives are arranged in the shell body, and fins are fixed on the periphery of a rear barrel body; the connecting plate, the piston and the reset spring are arranged on the rear barrel, and the reset spring and the connecting steel wire have a limiting effect, so that a safety effect is achieved, and the fire-fighting shell cannot be detonated in the transportation and loading processes; the inner gunpowder is extruded by the thrust action of the piston on the rear cylinder body, the delay core and the propelling combustible gas are ignited, and the increase of the firing range of the fire-fighting cannonball is facilitated. Meanwhile, the ignition device is arranged on the front barrel at the front end of the projectile body, so that the fire-fighting projectile is ensured to strike and ignite the detonation powder when falling to a firing area, and is ensured to be ignited certainly.

Drawings

FIG. 1 is a schematic structural view of a fire fighting projectile of the present invention;

FIG. 2 is a cross-sectional view of the fire fighting projectile of the present invention.

In the figure: the safety fuse comprises a bullet body 1, a central cavity 2, a rear barrel 3, a front barrel 4, an explosive 5, fins 6, a priming charge 7, a delay lead 8, an instant lead 9, a fixing ring 10, a piston 11, an arc cap 12, a return spring 13, a bottom plate 14, a connecting plate 15, a piston 16, a connecting steel wire 17, a return spring 18, air holes 19, a partition plate 20 and a safety lock plunger 21.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1 and fig. 2, the fire-fighting shell of the invention is respectively provided with a structural schematic diagram and a sectional view, and comprises a shell body 1, a rear barrel body 3, a front barrel body 4, an explosive 5, a fin 6, an ignition powder, a delay lead 8, an instant lead 9, a pushing ignition device and an ignition device positioned at the front end, wherein the shell body 1 is composed of fire-fighting substances, the interior of the shell body 1 is a central cavity 2, and the rear barrel body 3 and the front barrel body 4 are respectively fixed at the rear end and the front end of the shell body 1 and are communicated with the central cavity 2. The number of fin 6 is a plurality of, and a plurality of fin 6 evenly distributed is in the periphery of back barrel 3, is favorable to strengthening the stability of shell flight process and extension flight distance. The explosive 5 is arranged in the central cavity 2, and after the explosive 5 is detonated, the explosive 5 is used for spraying fire-fighting substances on the surface of an object on fire to resist the fire of the object on fire so as to realize fire fighting.

The end of the rear barrel 3 is shown filled with a primer 7, the primer 7 being connected to the explosive 5 by a delay lead 8. The push ignition device consists of a bottom plate 14, connecting plates 15, a piston 16 and a return spring 18, wherein the bottom plate 14 is circular, the number of the connecting plates 15 is equal to or doubled with that of the fins 6, the rear ends of the connecting plates 15 are fixed on the bottom plate 14, and the front ends of the connecting plates 15 are fixedly connected with the corresponding fins 6 through connecting steel wires 17. The piston 16 is fixed at the center of the bottom plate 14 and corresponds to the inner cavity of the rear cylinder 3, the front end of the priming charge 7 is provided with a partition plate 20, and the center of the partition plate 20 is a through hole. When the piston 16 moves towards the primer 7, it is pressed and ignited due to the blocking of the diaphragm 20.

The return spring is arranged between the bottom plate 14 and the wing piece 6 or the rear barrel 3, and is used for ensuring that a certain distance is always kept between the piston 16 and the ignition charge 7 under the condition that the bottom plate 14 is not influenced by an outer body, so that the explosive 5 is not ignited. At the same time, the connecting plate 15 and the connecting wire 17 in front of the wing 6 play a further role in securing the piston 16 from contact with the primer 7. In order to ensure that the ignition charge 7 in the rear barrel 3 is ignited, the piston 16 is provided with a vent hole 19 communicated with the outside so that the ignition charge 7 is communicated with the external combustible gas to be ignited smoothly.

The ignition device is arranged on the front barrel 4 and consists of a priming charge 7, a fixing ring 10, a piston 11, an arc-shaped cap 12 and a return spring 13, the priming charge 7 is positioned in the front barrel 4, and the priming charge 7 is connected with the explosive 5 through an instant lead 9. The fixing ring 10 is engaged with the inner wall of the front barrel 4 by a screw thread, and the piston 11 penetrates through the inner cavity of the fixing ring 10 and faces the priming charge 7. The arc cap 12 is fixed at the outer end of the front barrel 4, the return spring 13 is arranged between the arc cap 12 and the fixed ring 10, and under the condition that the arc cap 12 is not in contact with an external object, the piston 11 and the ignition powder 7 have a certain distance, so that the ignition powder 7 cannot be ignited. The front cylinder 4 is provided with a safety lock bolt 21 penetrating through the piston 11, and the safety lock bolt is opened manually when in use, so that the safety when not in use is ensured.

The working process of the fire-fighting cannonball of the invention is as follows: under the thrust of the gas in the air flue, the bottom plate 14 moves forwards, the return spring 18 is compressed, the connecting plate 15 is disconnected with the connecting steel wire 17 fixed with the fin 6, the piston 16 ignites the ignition powder 7 in the rear barrel 3, and simultaneously the piston 16 generates thrust on the partition plate 20 and the bottom plate 14 to the fin 6 and the barrel 3, and the projectile assembly flies out under the combined action of the thrust and the gas. The propelling assemblies (14, 16, 18, 15) are separated from the projectile body assembly and respectively fall down at different speeds after being taken out of the chamber.

In the process of flying out of the fire-fighting cannonball, the delay lead 8 is continuously burnt. After the fire-fighting cannon bullet falls to the area of catching fire, delay lead 8 burns till totally and ignites explosive 5, sprays the fire-fighting material in projectile body 1 under the effect of explosive 5, realizes putting out a fire. Even if the explosive 5 is not detonated by the delay lead 8, the ignition charge 7 in the front barrel 4 is ignited by the piston 16 after the arc cap 12 at the front end of the projectile body 1 contacts the ground or other objects, and the explosive 5 is ignited.

Claims

1. A fire-fighting shell comprises a shell assembly and a propelling assembly, wherein the shell assembly consists of a shell body (1), an explosive (5), a rear cylinder body (3), a front cylinder body (4) and a plurality of fins (6), the shell body consists of fire-fighting substances, a central cavity (2) is formed in the shell body, the explosive is arranged in the central cavity, the rear cylinder body and the front cylinder body are respectively positioned at the rear part and the front part of the shell body and are communicated with the central cavity, and the fins are uniformly fixed on the outer surface of the rear cylinder body; the method is characterized in that: the propulsion assembly consists of a bottom plate (14), a piston (16), a return spring (18) and a plurality of connecting plates (15), the rear ends of the connecting plates are uniformly fixed on the bottom plate, and the front ends of the connecting plates are fixed with the fins through connecting steel wires (17); the tail end of the rear barrel is filled with ignition powder (7), the ignition powder is connected with the explosive through a delay lead (8), the piston is fixed in the center of the bottom plate and used for extruding and igniting the ignition powder, and the return spring is positioned between the bottom plate and the wing plate or the rear barrel and used for ensuring that the ignition powder is not extruded under the condition of no external force and simultaneously separating the propelling assembly from the projectile assembly after the projectile body is taken out of the chamber;

the ignition device is characterized in that the front barrel (4) is provided with an ignition device consisting of a priming powder (7), a fixing ring (10), a piston (11), an arc-shaped cap (12) and a return spring (13), the priming powder is positioned in the front barrel and is connected with the explosive (5) through an instant lead, the fixing ring (10) is fixed at the front end of the front barrel, and the piston (11) penetrates through an inner through hole of the fixing ring; the rear end of the piston faces the ignition powder (7), the front end of the piston is fixed with an arc-shaped cap (12), and a return spring (13) is arranged between the arc-shaped cap and the fixed ring; a safety lock bolt (21) penetrating through the piston (11) is arranged on the front cylinder body;

a plurality of air holes (19) communicated with the outside are formed in the piston (16);

a partition plate (20) is arranged on one side, close to the explosive (5), of the ignition charge (7), and a through hole is formed in the center of the partition plate;

the fire-fighting cannonball composed of the projectile body assembly and the propelling assembly is separated after being ejected; the ignition devices at the front end and the rear end of the projectile body assembly are used for impact detonation in the front and for propulsion detonation and delayed detonation of explosives in the projectile body, so that two blasting forms are formed to ensure the detonation of the projectile body.