Small-caliber cluster gun projectile based on central delay tube

Abstract

A small-caliber cluster gun projectile based on a center delay tube comprises a parent bullet head, a parent bullet shell, a shell bottom cover, a bullet projectile, a projectile carrier and a center delay tube; the parent bullet head and the shell bottom cover are respectively threadedly connected at both ends of the parent bullet shell; the center delay tube is located at the center of the parent bullet shell, one end of the center delay tube is fixedly inserted into the parent bullet head, the other end is threadedly connected with the shell bottom cover, and the center of the shell bottom cover is provided with an ignition hole; the projectile carrier is located in the annular space between the center delay tube and the parent bullet shell, and the bullet projectile is located in the projectile carrier; the primer, the primary ignition powder, the explosion-proof baffle, the delay powder, the secondary ignition powder, the initiating explosive and the shot blasting explosive of the center delay tube are sequentially arranged along the axial direction of the tube body; the projectile carrier adopts a multi-petal structure, a plurality of projectile accommodating grooves are arranged on a single petal body; a limiting protrusion is arranged on the circumferential surface of the projectile carrier, a limiting groove is arranged on the inner surface of the parent bullet shell, and the limiting protrusion and the limiting groove are in clamping engagement.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of military equipment, and particularly relates to a small-caliber cluster gun bullet based on a central delay detonation tube. BACKGROUND

[0002] In modern warfare, a squad is usually taken as the smallest combat unit, and the biggest threat faced by the squad mainly comes from the aerial unmanned aerial vehicle (UAV) cluster. Therefore, it is crucial to equip the squad with a light weapon for intercepting the UAV cluster.

[0003] At present, the cluster gun bullet, as a low-cost terminal interception ammunition, becomes an effective technical solution when the squad faces the problems of cost asymmetry and great difficulty in attacking the UAV cluster. Therefore, accelerating the technical research of the cluster gun bullet and providing the squad with effective combat equipment for intercepting the UAV cluster are of great significance for exploring the future warfare mode, applying the equipment and promoting the innovation and development of the tactics.

[0004] A Chinese patent application with the application number 202210665614.6 discloses a forest fire extinguishing sub-mother bullet, which is also classified as a cluster gun bullet in type and has the potential to be modified into combat equipment. However, when the modified combat equipment is used to intercept the small UAV cluster and other targets, the adaptability is poor.

[0005] A Chinese patent application with the application number 202221623955.9 discloses a bullet core fixing structure for a small-caliber cluster bullet, which has the characteristics of stable bullet core covering, reduced bullet core scattering angle and improved bullet core dispersion density. However, the scheme cannot control the bullet scattering time, and when it is used to intercept the UAV cluster, the mother bullet may pass through the UAV cluster without timely scattering the bullets, thereby missing the best interception opportunity and reducing the damage effect on the UAV cluster. SUMMARY

[0006] In view of the problems in the prior art, the application provides a small-caliber cluster gun bullet based on a central delay detonation tube. The mother bullet body can realize delayed explosion after flying a distance in the air after being launched, so as to ensure that the mother bullet body explodes just into the UAV cluster. The high-speed projection of the bullet projectile is realized through the explosion energy, and then the high-speed projected bullet projectile strikes the UAV cluster, thereby effectively improving the damage effect on the UAV cluster.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: A small-caliber cluster gun bullet based on a center delay tube, comprising a parent bullet head, a parent bullet shell, a shell bottom cover, a bullet projectile, a projectile carrier and a center delay tube; the parent bullet head is threadedly connected to one end of the parent bullet shell, and the shell bottom cover is threadedly connected to the other end of the parent bullet shell; the center delay tube is located at the center of the parent bullet shell, one end of the center delay tube is fixedly inserted into the parent bullet head, and the other end of the center delay tube is threadedly connected with the shell bottom cover, and a ignition hole is arranged at the center of the shell bottom cover; the projectile carrier is located in the annular space between the center delay tube and the parent bullet shell, and the bullet projectile is located in the projectile carrier.

[0008] The center delay tube comprises a tube body, a primer, primary ignition powder, an explosion-proof baffle, delay powder, secondary ignition powder, initiating explosive and shot blasting explosive; the tube body adopts a single-side opening structure, the closed end of the tube body is fixedly inserted into the parent bullet head, and the opening end of the tube body is threadedly connected with the shell bottom cover; the shot blasting explosive is filled in the tube body, and the filling position of the shot blasting explosive is staggered with the threaded segment of the opening end of the tube body; the delay powder, the secondary ignition powder and the initiating explosive are sequentially filled in the threaded segment of the opening end of the tube body, and the initiating explosive is closely attached to the shot blasting explosive; the secondary ignition powder is arranged at the tube opening of the tube body, and the secondary ignition powder is closely attached to the delay powder; the explosion-proof baffle is embedded in the secondary ignition powder, and the diameter of the explosion-proof baffle is greater than that of the ignition hole; the primer is arranged between the secondary ignition powder and the ignition hole, and the primer is closely attached to the secondary ignition powder.

[0009] The projectile carrier adopts a multi-petal structure, the bullet projectile is clamped between the single-petal bodies of the projectile carrier, and a plurality of bullet accommodating grooves are arranged on the single-petal bodies of the projectile carrier.

[0010] A limiting bump is arranged on the circumferential surface of the projectile carrier, and a limiting groove is arranged on the inner surface of the parent bullet shell, and the number of the limiting bump and the limiting groove is the same and one-to-one corresponding.

[0011] The present application has the following beneficial effects:

[0012] The small-caliber cluster gun bullet based on the center delay tube can realize delay explosion after flying a distance in the air after the parent bullet body is launched, so that the parent bullet body can enter the unmanned aerial vehicle cluster just at the time of explosion, the high-speed projection of the bullet projectile is realized through explosion energy, and then the unmanned aerial vehicle cluster is attacked by the high-speed projectile, so that the damage effect on the unmanned aerial vehicle cluster is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of a small-caliber cluster gun bullet based on a center delay tube of the present application;

[0014] Figure 2 It is a structure schematic view of a small-caliber cluster gun bullet based on a center delay tube of the present application;Figure 1 Central A-A cross-sectional view;

[0015] Figure 3 Structure schematic diagram of the assembly of the central delay detonator and the shell bottom cover of the application;

[0016] Figure 4 Structure schematic diagram of the single-petal body of the projectile carrier of the application;

[0017] In the figure, 1 is a parent bullet head, 2 is a parent bullet shell, 3 is a shell bottom cover, 4 is a child bullet, 5 is a projectile carrier, 6 is a central delay detonator, 7 is an ignition hole, 8 is a tube body, 9 is a primer, 10 is a primary ignition powder, 11 is an explosion-proof baffle, 12 is a delay powder, 13 is a secondary ignition powder, 14 is a primer explosive, 15 is a shot blasting explosive, 16 is a projectile containing groove, 17 is a limiting bump, and 18 is a limiting groove. DETAILED DESCRIPTION

[0018] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0019] As Figures 1 to 4 shown, a small-caliber cluster gun bullet based on a central delay detonator includes a parent bullet head 1, a parent bullet shell 2, a shell bottom cover 3, a child bullet 4, a projectile carrier 5, and a central delay detonator 6. The parent bullet head 1 is threadedly connected to one end of the parent bullet shell 2, and the shell bottom cover 3 is threadedly connected to the other end of the parent bullet shell 2. The central delay detonator 6 is located at the center of the parent bullet shell 2, with one end of the central delay detonator 6 fixedly inserted into the parent bullet head 1 and the other end of the central delay detonator 6 threadedly connected to the shell bottom cover 3. An ignition hole 7 is arranged at the center of the shell bottom cover 3. The projectile carrier 5 is located in the annular space between the central delay detonator 6 and the parent bullet shell 2, and the child bullet 4 is located in the projectile carrier 5.

[0020] The center delay detonation tube 6 comprises a tube body 8, a primer 9, a primary ignition powder 10, an explosion-proof baffle 11, a delay powder 12, a secondary ignition powder 13, a primary explosive 14 and a shot blasting explosive 15; the tube body 8 adopts a single-side opening structure, the closed end of the tube body 8 is fixedly inserted with the parent bullet head 1, and the opening end of the tube body 8 is threadedly connected with the shell bottom cover 3; the shot blasting explosive 15 is filled in the tube body 8, and the filling position of the shot blasting explosive 15 is staggered with the threaded section of the opening end of the tube body 8; the delay powder 12, the secondary ignition powder 13 and the primary explosive 14 are sequentially filled in the threaded section of the opening end of the tube body 8, and the primary explosive 14 is closely attached to the shot blasting explosive 15; the secondary ignition powder 13 is installed at the tube opening of the tube body 8, and the secondary ignition powder 13 is closely attached to the delay powder 12; the explosion-proof baffle 11 is embedded in the secondary ignition powder 13, and the diameter of the explosion-proof baffle 11 is greater than that of the ignition hole 7; the primer 9 is installed between the secondary ignition powder 13 and the ignition hole 7, and the primer 9 is closely attached to the secondary ignition powder 13.

[0021] The bullet carrier 5 adopts a multi-petal structure, the bullet cartridges 4 are clamped between the single-petal bodies of the bullet carrier 5, and a plurality of bullet accommodating grooves 16 are arranged on the single-petal bodies of the bullet carrier 5. In the embodiment, the bullet carrier 5 adopts a four-petal structure, four bullet cartridges 4 are clamped between any adjacent single-petal bodies, and a total of sixteen bullet cartridges 4 are accommodated in the bullet carrier 5.

[0022] A limiting protrusion 17 is arranged on the circumferential surface of the bullet carrier 5, a limiting groove 18 is arranged on the inner surface of the parent bullet shell 2, and the limiting protrusions 17 and the limiting grooves 18 are the same in number and one-to-one in position. In the embodiment, the number of the matched limiting protrusions 17 and limiting grooves 18 is four, and the matched positions of the limiting protrusions 17 and the limiting grooves 18 are one-to-one corresponding to the clamping positions of the bullet cartridges 4.

[0023] The following describes a one-time use process of the application in combination with the drawings:

[0024] In the embodiment, the bullet cartridges 4 adopt tungsten alloy cartridges, the parent bullet head 1 adopts a tungsten alloy head, and in special scenarios, the parent bullet head 1 can be used as an armor-piercing head; the shell bottom cover 3 adopts a steel bottom cover, which has a certain ability to resist explosion impact; the parent bullet shell 2 adopts a copper shell, which can be easily broken under explosion impact, thereby ensuring that the bullet cartridges 4 can be smoothly projected; the bullet carrier 5 adopts a polycarbonate plastic carrier, which can stably provide support for the bullet cartridges 4 before explosion, and can be instantaneously blown and melted to ensure the smooth projection of the bullet cartridges 4; the tube body 8 of the center delay detonation tube 6 adopts a copper tube, which can be easily broken under explosion impact, thereby ensuring that the explosion energy can be smoothly released; the primer 9 of the center delay detonation tube 6 adopts a polyimide film; and the explosion-proof baffle 11 of the center delay detonation tube 6 adopts a steel baffle, which has a certain ability to resist explosion impact.

[0025] When the parent projectile body of the small-caliber cluster gun bullet of the present application is launched into the air, the primer 9 is first melted and destroyed, the primary ignition powder 10 is ignited, and as the primary ignition powder 10 burns, the explosion-proof baffle 11 buried in the primary ignition powder 10 is released from the constraint, and under the action of the high-temperature smoke pressure generated by the burning, the explosion-proof baffle 11 quickly seals the ignition hole 7, and then the delay powder 12 is ignited by the primary ignition powder 10, and the delay powder 12 performs timed combustion, and in the process of timed combustion of the delay powder 12, the small-caliber cluster gun bullet parent projectile body is just in the stage of inertial upward flight.

[0026] When the timed combustion of the delay powder 12 ends, the secondary ignition powder 13 is ignited by the delay powder 12, and through the combustion of the secondary ignition powder 13, the booster 14 is ignited, and finally through the booster 14, the shot blasting explosive 15 is detonated. With the detonation of the shot blasting explosive 15, the explosion energy is released instantaneously, and in turn the tube 8, the projectile carrier 5 and the parent projectile shell 2 are burst, and in the process of release of the explosion shock wave, the bullet projectile 4 realizes high-speed projection, and in this process, the small-caliber cluster gun bullet just enters the unmanned aerial vehicle cluster, and the high-speed projectile bullet 4 forms a large-scale attack on the unmanned aerial vehicle cluster, effectively improving the damage effect on the unmanned aerial vehicle cluster.

[0027] In addition, in the process of release of the explosion shock wave, with the burst of the parent projectile shell 2, the parent projectile head 1, the shell bottom cover 3 and the shell fragments also realize high-speed projection, and also can produce the attack effect on the unmanned aerial vehicle cluster.

[0028] The scheme in the embodiment is not used to limit the patent protection scope of the present application, and any equivalent implementation or change without departing from the present application is included in the patent scope of the present application.

Claims

1. A small caliber cluster munition based on a central delay tube, characterized in that: The application relates to a multiple-layered bullet, which comprises a mother bullet head, a mother bullet shell, a shell bottom cover, a bullet pellet, a pellet bracket and a central delay detonation tube; the mother bullet head is threadedly connected to one end of the mother bullet shell, the shell bottom cover is threadedly connected to the other end of the mother bullet shell, the central delay detonation tube is located at the central position of the mother bullet shell, one end of the central delay detonation tube is fixedly inserted into the mother bullet head, the other end of the central delay detonation tube is threadedly connected with the shell bottom cover, and a firing hole is arranged at the central position of the shell bottom cover; the pellet bracket is located in the annular space between the central delay detonation tube and the mother bullet shell, and the bullet pellet is located in the pellet bracket; the central delay detonation tube comprises a tube body, a primer, primary ignition powder, an explosion-proof baffle, delay powder, secondary ignition powder, initiating explosive and throwing pellet explosive; the tube body adopts a single-side opening structure, the closed end of the tube body is fixedly inserted into the mother bullet head, and the opening end of the tube body is threadedly connected with the shell bottom cover; the throwing pellet explosive is filled in the tube body, and the filling position of the throwing pellet explosive is staggered with the threaded section of the opening end of the tube body; the delay powder, the secondary ignition powder and the initiating explosive are sequentially filled in the threaded section of the opening end of the tube body, the initiating explosive is tightly attached to the throwing pellet explosive; the primary ignition powder is arranged at the tube opening of the tube body, the secondary ignition powder is tightly attached to the delay powder; the explosion-proof baffle is embedded in the primary ignition powder, and the diameter of the explosion-proof baffle is larger than that of the firing hole; the primer is arranged between the primary ignition powder and the firing hole, and the primer is tightly attached to the primary ignition powder; the bullet pellet adopts a tungsten alloy pellet; the mother bullet head adopts a tungsten alloy head; the shell bottom cover adopts a steel bottom cover; the mother bullet shell adopts a copper shell; the pellet bracket adopts a polycarbonate plastic bracket; the tube body of the central delay detonation tube adopts a copper tube; the primer of the central delay detonation tube adopts a polyimide film; and the explosion-proof baffle of the central delay detonation tube adopts a steel baffle.

2. The small caliber cluster munition based on the central delay action tube according to claim 1, characterized in that: The pellet bracket adopts a multi-petal structure, the bullet pellet is clamped between the single-petal bodies of the pellet bracket, and a plurality of pellet accommodating grooves are arranged on the single-petal bodies of the pellet bracket.

3. The small caliber cluster munition based on the central delay line according to claim 1, characterized in that: Limiting protrusions are arranged on the circumferential surface of the pellet bracket, limiting grooves are arranged on the inner surface of the mother bullet shell, the number of the limiting protrusions is the same as that of the limiting grooves, and the positions of the limiting protrusions and the limiting grooves are one-to-one corresponding.

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