CN108592710B - Spin-stabilized antiriot bomb based on smooth bore weapon firing - Google Patents

Abstract

The invention discloses a self-rotation stable antiriot based on smooth bore weapon emission, which comprises a shell, a cartridge case, a primary self-rotation fuel gas thrust tube, a cartridge core propulsion part, a delay ignition tube, a cartridge core striking part and a sealing pad, wherein concave semicircular female rifling is carved on the inner wall of the shell, the primary self-rotation fuel gas thrust tube is riveted on the upper part of the cartridge case, the cartridge core propulsion part is provided with a spiral tail wing and a secondary self-rotation fuel gas thrust tube, the outer wall of the cartridge core striking part is provided with a cartridge core positive rifling matched with the cartridge shell female rifling, a central fire transmission hole on the upper part of the cartridge case is sealed by a fire transmission hole cover with shearing threads, and when propellant is in leakage loading or failure, the fire transmission hole cover can effectively and directly delay the ignition tube to lead to bore.

Description

Spin-stabilized anti-riot bullets launched based on smoothbore weapons

Technical field

The invention relates to the technical field of anti-riot bullets, specifically spin-stabilized anti-riot bullets launched based on smooth-bore weapons.

Background technique

Anti-riot bombs play an important role in the military, armed police, and public security's diversified tasks such as duty, counter-terrorism, and emergency response. Currently, the distance for hand-thrown anti-riot bombs is 20 to 40 meters. The distance is 80-120m. The above-mentioned shooting distance of 80-120m is for tear gas or smoke bombs. In fact, for kinetic energy bombs, the shooting distance is about 35m. Therefore, how to achieve long-distance precise kinetic energy strikes has become a problem for all types of weapons. Important dilemma for law enforcement agencies.

Anti-personnel bullets are equipped with negative and positive rifling, so that the projectile has a certain spin speed, which greatly improves the flight stability, thereby improving its shooting accuracy. Whether the anti-riot ammunition is fired from a gun or a launcher, its launch platform is It is a smoothbore. In order not to change the launch system, we can only improve the design of the anti-riot bullet itself so that it has a certain spin ability and the range can be improved while ensuring the strike accuracy. In addition, it is also necessary to avoid the easy firing of the anti-riot bullet by the gun. Potential safety risks caused by explosion accidents, and new equipment have given rise to new tactics. Solving the above problems will greatly improve the tactical performance of riot-proof ammunition.

Contents of the invention

The purpose of the present invention is to provide a spin-stabilized anti-riot bullet launched based on a smooth-bore weapon to solve the problems of short range, low accuracy, and easy bore explosion raised in the above-mentioned background technology.

In order to achieve the above objectives, the present invention provides the following technical solution: a spin-stabilized riot-proof bullet launched based on a smooth-bore weapon, including a cartridge case, a launching cartridge, a first-stage spin gas thrust tube, a core propulsion part, a delayed ignition tube, and a bullet core. The striking part, the sealing pad and the low-pressure chamber are characterized in that: the cartridge case and the propellant cartridge are threaded and fixed, a first-level spin gas thrust tube is riveted on the upper side of the propellant cartridge, and the core propulsion part is used to impart The second propulsion acceleration and secondary spin acceleration of itself and the core striking part. The core propulsion part is made of high-temperature resistant metal materials. The delayed ignition tube is inserted upside down inside the core propulsion part. The delayed ignition The delay time of the tube is 1.5s. The strike portion of the bullet core is made of rubber material and is used to achieve non-lethal kinetic energy strikes on the target. The sealing pad and the upper port of the cartridge case are fixed by adhesive. The sealing pad is used for The cartridge case is sealed, and the cavity formed by the upper side of the propellant cartridge and the lower side of the propelling portion of the cartridge core is a low-pressure chamber.

Preferably, the cartridge case is made of stainless steel material, and the outer dimensions of the cartridge case are exactly the same as those of active gun-fired anti-riot bullets. The cartridge case includes internal threads in the lower part of the cartridge case and a cartridge rifling line. The cartridge case rifling line is The concave semicircular groove opened along the inner wall of the cartridge case has a twist angle of 30° and a twist distance of 300mm.

Preferably, the propellant cartridge includes a primer, a propellant barrel external thread, a propellant cup, a propellant, a propellant cup upper cover, a connecting thread, a central fire hole, a fire hole cover and a shearing thread. The primer is a mechanical impact primer. The primer is riveted at the axis of the bottom end face of the propellant barrel. The gunpowder gas generated by the combustion of the propellant is used to impart primary propulsion acceleration and primary spin acceleration to the core propulsion part and the core striking part. , the upper cover plate of the propellant cup and the propellant barrel are connected and fixed through connecting threads, the central fire transmission hole is located on the central axis of the upper cover plate of the propellant cup, and the fire transmission hole cover is connected to the propellant cup through shear threads The upper cover simultaneously seals the central fire hole. The shear thread is sheared and damaged when subjected to the action of the gunpowder gas generated by the combustion of the propellant. Then the fire hole cover is overturned. The propellant cartridge is damaged after each launch. Afterwards, it can be loaded and used again.

Preferably, the first-level spin gas thrust tube is riveted to the upper cover of the propellant cup, and the first-level spin gas thrust tube includes a bottom hole of the first-level spin gas thrust tube and a nozzle of the first-level spin gas thrust tube. , the number of the first-level spin gas thrust tubes is 2, and they are distributed in a spiral-like three-dimensional shape in the clockwise direction. The bottom hole of the first-level spin gas thrust tube and the nozzle of the first-level spin gas thrust tube are staggered by 180°. , the bottom hole of the first-level spin gas thrust tube penetrates the upper cover of the propellant cup and is connected to the propellant cup, and the bottom hole of the first-level spin gas thrust tube is sealed by hot melt glue.

Preferably, the core propulsion part includes a base of the core striking part, a glue point of the core striking part, a propellant chamber, a propellant, a propellant chamber cover, a chamber cover connecting thread, a delayed ignition tube jack, and a delayed ignition tube. The adhesive parts, propellant cavity direct injection hole, secondary spin gas thrust tube, secondary spin gas thrust tube bottom hole, secondary spin gas thrust tube nozzle, spiral tail and spiral tail blade windward side, all The base of the bullet core striking part is located on the upper part of the bullet core pushing part and is used to support the bullet core striking part. The adhesive part of the bullet core striking part is used to connect and fix the bullet core striking part. The propellant chamber is located in the middle of the bullet core pushing part. , the propellant is loaded inside the propellant chamber, the propellant chamber cover is connected to the propellant chamber through the chamber cover connecting thread, the delayed ignition tube insertion hole is used to insert the delayed ignition tube, and the delayed ignition tube is glued The end of the delayed ignition tube is fixed with hot melt glue. The rear part of the delayed ignition tube is ignited to ignite the propellant. After the gunpowder gas generated by the combustion of the propellant ablates the hot melt glue at the adhesive part of the delayed ignition tube, due to the propulsion The pressure inside the propellant chamber increases, the delayed ignition tube is thrown out from the delayed ignition tube jack, and the gunpowder gas is ejected from the direct injection hole of the propellant chamber at high speed, achieving a secondary push to the core propulsion part. The first-stage spin gas thrust tube is located on the lower side of the propellant chamber, the bottom hole of the second-stage spin gas thrust tube is connected to the propellant chamber, and the nozzle of the second-stage spin gas thrust tube is located on the bottom end surface of the core propulsion part, so The spiral tail is located on the lower side of the bottom end surface of the core propulsion part.

Preferably, the spiral tail blades are propeller blades, and the number of the blades is 4, which are distributed in a circular array along the central axis of the cartridge case. The windward surface of the spiral tail blades is in contact with the first-stage spin gas thrust tube nozzle and the second-stage spin gas thrust tube nozzle. The direction of the gas ejected from the nozzle of the stage spin gas thrust tube is vertical.

Preferably, the thickness of the propellant chamber cover is set to 7 to 8 mm, which can effectively prevent the high temperature generated by propellant combustion from deforming the striking portion of the bullet core, thereby affecting its striking accuracy.

Preferably, the number of the two-stage spin gas thrust tubes is 2, which are clockwise spiral-like pipelines opened inside the core propulsion part. The bottom hole of the two-stage spin gas thrust tube and The nozzles of the secondary spin gas thrust tube are staggered by 180°, and the bottom hole of the secondary spin gas thrust tube is sealed with hot melt glue.

Preferably, the bullet core striking part is made of rubber material. The bullet core striking part includes a rubber bullet core body, a rubber bullet core head, and a bullet core male rifling. The lower part of the rubber bullet core body is glued to the bullet core pushing part. Glued and fixed, the rubber core head and the rubber core body have an integral structure, and the rubber core head has a hemispherical structure. During the process of bluntly hitting the target, the rubber core head is deformed by impact, achieving target control. For non-lethal kinetic energy strikes on the target, the male rifling of the bullet core matches the female rifling of the bullet case, and its cross-section is a convex semicircular structure, which is used to give the striking part of the bullet core a stable precession direction.

Compared with the prior art, the present invention has the following advantages:

1. The present invention has the same appearance and structural dimensions as the existing gun-fired anti-riot bullets. It can be launched based on existing anti-riot guns without changing the traditional training and combat use methods, without increasing the training pressure of the troops, and is conducive to the rapid formation of combat effectiveness;

2. The fire hole cover of the present invention is connected to the upper cover of the propellant cup through shear threads and seals the central fire hole. The shear threads are sheared and damaged when subjected to the action of the gunpowder gas generated by the combustion of the propellant. When the propellant leaks When installed or failed, the gas generated by the combustion of the primer is not enough to destroy the shear thread, and it is difficult to push the fire hole cover. Therefore, the primer will not directly ignite the extension tube, thus effectively avoiding the explosion accident and making the use of the present invention safer. greatly improved;

3. The present invention sprays part of the propellant gas produced by the combustion of propellant and propellant from the nozzle to the windward surface of the blade of the spiral tail by setting up a first-stage and a second-stage spin gas thrust tube respectively, so that the spiral tail rotates in the clockwise direction. , thereby giving the present invention primary spin acceleration and secondary spin acceleration. The present invention improves flight stability because it realizes spin, thereby promoting the improvement of its strike accuracy. The gunpowder gas generated by propellant combustion escapes from the propellant chamber. The high-speed ejection from the direct injection hole realizes the secondary propulsion of the bullet core, so that the range of the present invention is also improved;

4. The present invention has female rifling lines on the inner wall of the cartridge case and male rifling lines on the outer wall of the striking part of the bullet core, so that the bullet has a stable precession direction. Coupled with the spin movement, the invention is less likely to deflect and roll;

5. The propellant cartridge in the present invention can be refilled and reused, so that the economical use of the present invention is also improved;

6. In the present invention, the end of the delayed ignition tube is firmly glued and fixed, so the delayed ignition tube will not accidentally fall off during storage, transportation, use, etc., which greatly improves the reliability of the present invention.

In summary, the present invention has a reasonable structure, ingenious design, and is easy to use. Safety accidents such as explosion of the barrel will not occur during use, and the safety, economy, reliability, range, and strike accuracy of the present invention are all improved, thereby making the present invention Has better tactical application prospects.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic structural diagram of the cartridge case 1 of the present invention;

Figure 3 is a schematic structural diagram of the propellant cartridge 2 in the present invention;

Figure 4 is a perspective view of the upper cover plate 2-5 of the propellant cup in the present invention;

Figure 5 is a schematic structural diagram of the core propulsion part 4 of the present invention;

Figure 6 is a schematic structural diagram of the core striking portion 6 of the present invention;

Figure 7 is a perspective view of the spiral tail 4-13 of the present invention.

In the picture: 1. Cartridge case, 1-1, Internal threads at the lower part of the cartridge case, 1-2, Cartridge casing bore line, 2. Launching cartridge, 2-1, Primer, 2-2, Launching cartridge external threads, 2-3, Propellant cup, 2-4, propellant cup, 2-5, propellant cup upper cover, 2-6, connecting thread, 2-7, center fire hole, 2-8, fire hole cover, 2-9 , shear thread, 3. First-level spin gas thrust tube, 3-1. Bottom hole of first-level spin gas thrust tube, 3-2. First-level spin gas thrust tube nozzle, 4. Core propulsion part, 4 -1. Base of the core striking part, 4-2. Adhesive part of the core striking part, 4-3. Propellant chamber, 4-4. Propellant, 4-5. Propellant chamber cover, 4-6. Chamber Cover connection thread, 4-7, delayed ignition tube socket, 4-8, delayed ignition tube glue point, 4-9, propellant chamber direct injection hole, 4-10, secondary spin gas thrust tube, 4- 11. The bottom hole of the secondary spin gas thrust tube, 4-12. The nozzle of the secondary spin gas thrust tube, 4-13. Spiral tail fin, 4-13-1. Windward side of the spiral tail blade, 5. Delayed ignition Tube, 6. Bullet core striking part, 6-1, rubber bullet core body, 6-2, rubber bullet core head, 6-3, bullet core male rifling, 7. Sealing cover, 8. Low pressure chamber.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-7. The present invention provides a technical solution: a spin-stabilized anti-riot bullet launched based on a smooth-bore weapon, including a cartridge case 1, an internal thread 1-1 in the lower part of the cartridge case, a rifled line 1-2 in the cartridge case, and a propellant cartridge 2 , primer 2-1, propellant barrel external thread 2-2, propellant cup 2-3, propellant 2-4, propellant cup upper cover 2-5, connecting thread 2-6, central flame hole 2- 7. Fire hole cover 2-8, shear thread 2-9, first-level spin gas thrust tube 3, first-level spin gas thrust tube bottom hole 3-1, first-level spin gas thrust tube nozzle 3-2 , core propelling part 4, core striking part base 4-1, core striking part adhesive part 4-2, propellant chamber 4-3, propellant 4-4, propellant chamber cover 4-5, chamber cover Connection thread 4-6, delayed ignition tube jack 4-7, delayed ignition tube adhesive point 4-8, propellant chamber direct injection hole 4-9, two-stage spin gas thrust tube 4-10, two-stage spin Gas thrust tube bottom hole 4-11, secondary spin gas thrust tube nozzle 4-12, spiral tail 4-13 and spiral tail blade windward side 4-13-1, delayed ignition tube 5, core strike part 6 , rubber bullet core body 6-1, rubber bullet core head 6-2, bullet core male rifling 6-3, sealing cover 7 and low pressure chamber 8, the cartridge case 1 and the propellant cartridge 2 are fixed through a threaded connection, the threaded connection method This allows the propellant cartridge 2 to be reloaded for use after the launch is completed, thereby improving the economy of use of the present invention. A first-stage spin gas thrust tube 3 is riveted on the upper side of the propellant cartridge 2. The core propulsion part 4 is used to impart secondary propulsion acceleration and secondary spin acceleration of the present invention. The core propulsion part 4 is composed of It is made of high-temperature-resistant metal materials and can effectively prevent the ablation of high-temperature and high-pressure gunpowder gas. The delayed ignition tube 5 is inserted upside down inside the core pushing part 4. The delay time of the delayed ignition tube 5 is 1.5s. The core strike part 6 is made of rubber material and is used to achieve non-lethal kinetic energy strikes on the target. The sealing pad 7 is fixed to the upper port of the cartridge case 1 by gluing. The sealing pad 7 is used to seal the present invention. The launcher The cavity formed by the upper side of the cartridge 2 and the lower side of the core pushing part 4 is a low-pressure chamber 8 .

With reference to Figures 1 and 2, the cartridge case 1 is made of stainless steel. The external dimensions of the cartridge case 1 are exactly the same as those of active gun-fired anti-riot bullets. It can be fired based on existing anti-riot guns without changing traditional training. and combat use mode, does not increase the training pressure of the troops, and is conducive to the rapid formation of combat effectiveness. The cartridge case 1 includes an internal thread 1-1 in the lower part of the cartridge case and a cartridge rifle line 1-2. The cartridge barrel rifle line 1-2 is along the inner wall of the cartridge case 1. The concave semicircular groove has a twist angle of 30° and a twist distance of 300mm.

As shown in Figure 3, the propellant cartridge 2 includes a primer 2-1, a propellant barrel external thread 2-2, a propellant cup 2-3, a propellant cup 2-4, a propellant cup upper cover 2-5, Connect the thread 2-6, the central fire hole 2-7, the fire hole cover 2-8 and the shear thread 2-9. The primer 2-1 is riveted at the axis of the bottom end of the propellant barrel 2. This embodiment , the primer 2-1 is a mechanical impact primer, used with the riot-proof gun. In other embodiments, if the anti-riot projectile launcher is used to launch the present invention, the primer 2-1 should be replaced with an electric primer. The primer 2-1 is used to ignite the propellant 2-4. The external thread 2-2 of the propellant barrel cooperates with the internal thread 1-1 of the lower part of the cartridge case to fix the propellant cartridge 2 and cartridge case 1. The upper cover plate 2-5 of the propellant cup and the propellant barrel 2 are connected and fixed through the connecting thread 2-6, and the central fire hole 2-7 is located on the central axis of the upper cover plate 2-5 of the propellant cup. The fire hole cover 2-8 is connected to the upper cover plate 2-5 of the propellant cup through the shear thread 2-9 and seals the central fire hole 2-7. The shear thread 2-9 is burned by the propellant 2-4. Shear damage occurs when the generated gunpowder gas acts, and then the fire hole cover 2-8 is overturned, and the high-pressure gas enters the low-pressure chamber 8 to achieve one-time advancement of the core propulsion part 4. The high-temperature and high-pressure gunpowder gas generated by the combustion of the propellant 2-4 ablate the bottom hole 3-1 of the primary spin gas thrust tube, causing part of the gas to enter the primary spin gas thrust tube 3 and exit from the primary spin gas thrust tube nozzle 3 -2 is ejected at high speed to achieve a single rotation push of the spiral tail 4-13. The high-pressure gas will ignite the front part of the delayed ignition tube 5 after entering the low-pressure chamber.

In this embodiment, when assembling the propellant cartridge 2, first the first-stage spin gas thrust tube 3 and the propellant cup upper cover 2-5 are riveted and fixed, and the bottom hole of the first-stage spin gas thrust tube is sealed with hot melt glue. 3-1. Tighten the upper cover plate 2-5 of the propellant cup to the propellant barrel 2, then rivet the primer 2-1 into the round hole at the axis of the bottom end of the propellant barrel 2, and then transfer the fire from the center. Fill the hole 2-7 with propellant 2-4. After the propellant 2-4 is filled, screw the fire hole cover 2-8 into the center fire hole 2-7.

With reference to Figure 1, Figure 3, Figure 4 and Figure 7, the first-level spin gas thrust tube 3 is riveted on the upper cover plate 2-5 of the propellant cup. The first-level spin gas thrust tube 3 includes a first-level self-propelled thrust tube. The bottom hole 3-1 of the spin gas thrust tube and the first-level spin gas thrust tube nozzle 3-2. The number of the first-level spin gas thrust tube 3 is 2, which is distributed in a spiral-like three-dimensional manner in the clockwise direction, so The bottom hole 3-1 of the first-stage spin gas thrust tube and the nozzle 3-2 of the first-stage spin gas thrust tube are staggered by 180°, and the bottom hole 3-1 of the first-stage spin gas thrust tube penetrates the upper cover of the propellant cup. 2-5 is connected with the propellant cup 2-3.

In this embodiment, the first-level spin gas thrust tube 3 adopts a spiral structure, so that the gunpowder gas ejected from the nozzle 3-2 of the first-level spin gas thrust tube also moves in a spiral shape, which can promote the spiral structure to the maximum extent. The blades of the tail fin 4-13 force the spiral tail 4-13 to rotate at high speed in the clockwise direction.

As shown in Figure 5, the core propulsion part 4 includes a core striking part base 4-1, a core striking part adhesive part 4-2, a propellant chamber 4-3, a propellant 4-4, and a propellant chamber. Cover 4-5, chamber cover connection thread 4-6, delayed ignition tube jack 4-7, delayed ignition tube adhesive point 4-8, propellant chamber direct injection hole 4-9, secondary spin gas thrust tube 4 -10. The bottom hole 4-11 of the secondary spin gas thrust tube, the nozzle 4-12 of the secondary spin gas thrust tube, the spiral tail 4-13 and the windward side of the spiral tail blade 4-13-1, the missile The base 4-1 of the core striking part is located on the upper part of the core pushing part 4 and is used to support the core striking part 6. The adhesive part 4-2 of the core striking part is used to connect and fix the core striking part 6. The propellant The cavity 4-3 is located in the middle of the core propulsion part 4. The propellant 4-4 is loaded inside the propellant cavity 4-3. The propellant cavity cover 4-5 connects the thread 4-6 to the propellant cavity through the cavity cover. 4-3 connection, the delayed ignition tube jack 4-7 is used to insert the delayed ignition tube 5, the adhesive part 4-8 of the delayed ignition tube is fixed with hot melt glue at the end of the delayed ignition tube 5, the delayed ignition tube The rear part of the tube 5 ignites the propellant 4-4. The gunpowder gas produced by the combustion of the propellant 4-4 ablate the hot melt glue at the adhesive part 4-8 of the delayed ignition tube. The pressure rises, the delayed ignition tube 5 is thrown out from the delayed ignition tube insertion hole 4-7, and the gunpowder gas is ejected from the direct injection hole 4-9 of the propellant chamber at high speed, achieving a secondary blow to the core propulsion part 4 For propulsion, the secondary spin gas thrust tube 4-10 is located on the lower side of the propellant chamber 4-3, and the bottom hole 4-11 of the secondary spin gas thrust tube is connected with the propellant chamber 4-3. The stage spin gas thrust tube nozzle 4-12 is located at the bottom end surface of the core propulsion part 4, and the spiral tail 4-13 is located below the bottom end surface of the core propulsion part 4.

In this embodiment, when the core propulsion part 4 is assembled, the bottom hole 4-9 of the secondary spin gas thrust tube is first sealed, and the delayed ignition tube 5 is inserted from the delayed ignition tube insertion hole 4-7. The delayed ignition tube 5 is glued and fixed at the glued part 4-8 of the tube. Then, the propellant 4-4 is loaded into the propellant chamber 4-3, and the propellant chamber cover 4-5 is screwed in.

Combining Figure 1, Figure 5 and Figure 7, the spiral tail 4-13 is a propeller blade, and the number of the blades is 4. They are distributed in a circular array along the central axis of the cartridge case 1. The spiral tail blades are on the windward side. 4-13-1 is perpendicular to the direction of gas ejected from the first-stage spin gas thrust tube nozzle 3-2 and the second-stage spin gas thrust tube nozzle 4-12, so that the gas thrust can achieve high efficiency on the spiral tail 4-13 Spin push.

With reference to Figure 1 and Figure 5, the delayed ignition tube jack 4-7 is used to insert the second half of the delayed ignition tube 5, and the delayed ignition tube adhesive portion 4-8 is used to secure the delayed ignition tube 5 with hot melt glue. The ends are glued and fixed, so that the delayed ignition tube 5 of the present invention will not accidentally fall off during storage, transportation, use, etc., thereby improving the reliability of the present invention. After the delayed ignition tube 5 is delayed for 1.5 seconds, , the tail part ignites, ignites the propellant 4-4, the propellant 4-4 burns violently, generates high-temperature and high-pressure gas, and ablates the hot melt glue at the adhesive part 4-8 of the delay tube, causing the delay ignition tube 5 to be thrown out, The gas is ejected from the direct injection holes 4-9 of the propellant chamber at high speed to achieve secondary propulsion of the core propulsion part 4 and the core striking part 6.

With reference to Figures 1 and 5, the propellant cavity direct injection hole 4-9 imparts secondary propulsion acceleration to the core propulsion part 4 and the core striking part 6 by injecting the gunpowder gas generated by the combustion of the propellant 4-4. The number of the two-stage spin gas thrust tubes 4-10 is 2, which are quasi-spiral pipelines in the clockwise direction opened inside the core propulsion part 4. The bottom hole 4-10 of the two-stage spin gas thrust tubes 11 and the secondary spin gas thrust tube nozzles 4-12 are staggered by 180°. The high temperature and high pressure gas generated by the combustion of the propellant 4-4 ablate the hot melt adhesive at the bottom hole 4-11 of the secondary spin gas thrust tube. , and is ejected from the secondary spin gas thrust tube nozzle 4-12 at high speed along the secondary spin gas thrust tube 4-10 to realize the secondary spin push of the spiral tail 4-13.

As shown in Figure 6, the bullet core striking part 6 is made of rubber material. The bullet core striking part 6 includes a rubber bullet core body 6-1, a rubber bullet core head 6-2, and a bullet core male rifling 6-3. , the lower part of the rubber elastic core body 6-1 is glued and fixed to the elastic core pushing part 4, the rubber elastic core head 6-2 and the rubber elastic core body 6-1 are of an integral structure, and the rubber elastic core head 6 -2 is a hemispherical structure. In the process of bluntly hitting the target, the rubber bullet core head 6-2 is deformed by impact to achieve a non-lethal kinetic energy strike on the target. The male rifling line 6-3 of the bullet core is consistent with the female rifling line of the cartridge case. 1-2 matches, and its cross-section is a convex semicircular structure, which is used to give the core striking portion 6 a stable precession direction.

working principle:

When used, firstly, the spin-stabilized anti-riot bullet fired by the smooth-bore weapon is loaded into the bore of the anti-riot gun of corresponding caliber, the gun bore is locked, the safety is opened, the trigger of the anti-riot gun is pulled, and the anti-riot gun needle strikes the smooth-bore weapon fired The primer 2-1 of the spin-stabilized anti-riot bomb ignites the propellant 2-4. The propellant 2-4 burns violently to produce a large amount of high-temperature and high-pressure gas, which ablate the bottom hole 3- of the first-stage spin thrust tube. 1. Hot melt glue and high-temperature gas are ejected at high speed from the nozzle 3-2 of the first-level spinning gas thrust tube 3 along the first-level spinning gas thrust tube, pushing the spiral tail 4-13 to achieve one spin, and the powder cup 2 is to be launched. After the pressure in -3 reaches a certain threshold, shearing failure occurs in the shear thread 2-9, the gas overturns the fire hole cover 2-8, and the high-temperature and high-pressure gunpowder gas enters the low-pressure chamber 8, achieving one-time push of the core propulsion part 4 , and ignite the front part of the delayed ignition tube 5, pushing the core pushing part 4 to move rapidly toward the muzzle. At this time, the connection between the sealing pad 7 and the cartridge case 1 is destroyed, and the male rifling 6-3 of the cartridge core is squeezed into the cartridge case. Rifling line 1-2, the core pushing part 4 and the core striking part 6 rotate rapidly and fly out of the muzzle. After a delay of 1.5 seconds, the rear part of the delayed ignition tube 5 begins to fire, igniting the propellant 4-4 and advancing. The agent 4-4 burns violently, and part of the high-temperature gas generated ablates the hot melt adhesive at the adhesive part 4-8 of the delay tube, causing the delay ignition tube 5 to be thrown out, and the gas is ejected from the direct injection hole 4-9 of the propellant chamber at high speed. , to realize the secondary propulsion of the core propelling part 4 and the core striking part 6, and the other part of the high-temperature gas ablate the hot melt glue at the bottom hole 4-11 of the secondary spin gas thrust tube, and along the secondary spin gas The thrust tube 4-10 is ejected from the secondary spin gas thrust tube nozzle 4-12 at high speed to realize the secondary spin acceleration of the spiral tail 4-13. Since the projectile propulsion part 4 and the projectile striking part 6 are rotating rapidly It flies towards the target in a stable state, with good flight stability, no deflection or roll, and can accurately strike a single target at a long distance. After the rubber bullet core head 6-2 hits the target, the rubber bullet core head 6-2 Although it has a large impact kinetic energy due to force deformation, due to the increasing contact area, its impact specific kinetic energy is smaller and will not cause excessive damage to the target.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (2)

1. A spin-stabilized anti-riot projectile based on a smoothbore weapon, including a cartridge case (1), a propellant cartridge (2), a first-stage spin gas thrust tube (3), a core propulsion part (4), and a delayed ignition tube ( 5), core striking part (6), sealing pad (7) and low-pressure chamber (8), characterized in that: the cartridge case (1) and the propellant cartridge (2) are connected and fixed by threads, and the cartridge case (1) ) is made of stainless steel materials. The outer dimensions of the cartridge case (1) are exactly the same as those of the active anti-riot bullets. The cartridge case (1) includes the internal thread (1-1) of the lower part of the cartridge case and the bore line of the cartridge case ( 1-2), the cartridge case bore line (1-2) is a concave semicircular groove opened along the inner wall of the cartridge case (1), its twist angle is 30°, and the twist distance is 300mm. The propellant cartridge (2) includes a primer (2-1), propellant barrel external thread (2-2), propellant cup (2-3), propellant (2-4), propellant cup upper cover (2-5), connecting thread (2 -6), central flame hole (2-7), flame hole cover (2-8) and shear thread (2-9), the primer (2-1) is a mechanical impact primer, the primer (2-1) is riveted at the axis of the bottom end surface of the propellant barrel (2), and the gunpowder gas generated by the combustion of the propellant (2-4) is used to impart power to the core propulsion part (4) and the core striking part (6) ) one propulsion acceleration and one spin acceleration, the upper cover plate (2-5) of the propellant cup and the propellant barrel (2) are connected and fixed through the connecting thread (2-6), and the central fire hole (2- 7) Located on the central axis of the upper cover plate (2-5) of the propellant cup, the fire hole cover (2-8) is connected to the upper cover plate (2-5) of the propellant cup through shear threads (2-9) At the same time, the central fire hole (2-7) is sealed, and the shear thread (2-9) is sheared and damaged when subjected to the action of the gunpowder gas generated by the combustion of the propellant (2-4), and then the fire hole cover (2 -8) is overturned, and the propellant cartridge (2) can be reloaded and used after each launch. The upper side of the propellant cartridge (2) is riveted with a first-level spin gas thrust tube (3), so The first-level spin gas thrust tube (3) is riveted on the upper cover plate (2-5) of the propellant cup, and the first-level spin gas thrust tube (3) includes a bottom hole (3) of the first-level spin gas thrust tube -1) and a first-stage spin gas thrust tube nozzle (3-2), the number of the first-stage spin gas thrust tube (3) is 2, and they are distributed in a spiral-like three-dimensional shape in the clockwise direction. The bottom hole (3-1) of the first-stage spin gas thrust tube and the nozzle (3-2) of the first-stage spin gas thrust tube are staggered by 180°, and the bottom hole (3-1) of the first-stage spin gas thrust tube runs through the propellant The cup upper cover (2-5) is connected to the propellant cup (2-3), the bottom hole (3-1) of the first-stage spin gas thrust tube is sealed by hot melt glue, and the core propulsion part (4 ) is used to impart secondary propulsion acceleration and secondary spin acceleration to itself and the bullet core striking part (6). The bullet core pushing part (4) is made of high-temperature resistant metal materials. The bullet core pushing part (4) ) includes the base of the core striking part (4-1), the adhesive part of the core striking part (4-2), the propellant chamber (4-3), the propellant (4-4), and the propellant chamber cover (4- 5), chamber cover connecting thread (4-6), delayed ignition tube insertion hole (4-7), delayed ignition tube adhesive point (4-8), propellant chamber direct injection hole (4-9), secondary Spin gas thrust tube (4-10), secondary spin gas thrust tube bottom hole (4-11), secondary spin gas thrust tube nozzle (4-12), spiral tail (4-13) and spiral The windward side of the tail blade (4-13-1), the base of the bullet core striking part (4-1) is located on the upper part of the bullet core pushing part (4), and is used to support the bullet core striking part (6). The bullet core The adhesive part (4-2) of the striking part is used to connect and fix the striking part (6) of the bullet core. The propellant chamber (4-3) is located in the middle of the propelling part (4) of the bullet core. The propellant (4-4 ) is loaded inside the propellant chamber (4-3), the propellant chamber cover (4-5) is connected to the propellant chamber (4-3) through the chamber cover connecting thread (4-6), and the delayed ignition tube The jack (4-7) is used to insert the delayed ignition tube (5). The adhesive part (4-8) of the delayed ignition tube is used to fix the end of the delayed ignition tube (5) with hot melt glue. The delayed ignition tube (5) is 5) The rear ignition ignites the propellant (4-4). After the gunpowder gas generated by the combustion of the propellant (4-4) ablates the hot melt glue at the adhesive part (4-8) of the delayed ignition tube, due to the propulsion The pressure inside the propellant chamber (4-3) increases, the delayed ignition tube (5) is thrown out from the delayed ignition tube jack (4-7), and the gunpowder gas is directed from the propellant chamber through the injection hole (4-9) High-speed ejection realizes the secondary propulsion of the core propulsion part (4). The two-stage spin gas thrust tube (4-10) is located on the lower side of the propellant chamber (4-3). The two-stage spin gas thrust tube (4-10) The number of gas thrust tubes (4-10) is 2, which are clockwise spiral-like pipelines opened inside the core propulsion part (4). The bottom hole of the secondary spinning gas thrust tube (4 -11) and the secondary spin gas thrust tube nozzle (4-12) are staggered by 180°, and the bottom hole (4-11) of the secondary spin gas thrust tube is sealed by hot melt glue. The bottom hole (4-11) of the thrust tube is connected with the propellant chamber (4-3). The two-stage spin gas thrust tube nozzle (4-12) is located at the bottom end surface of the core propulsion part (4). The spiral The spiral tail fin (4-13) is located on the lower side of the bottom end surface of the cartridge core propulsion part (4). The spiral tail fin (4-13) is a propeller-type blade, and the number of the blades is 4, along the central axis of the cartridge case (1) Distributed in a circular array, the windward surface of the spiral tail blade (4-13-1) is sprayed with the first-stage spin gas thrust tube nozzle (3-2) and the second-stage spin gas thrust tube nozzle (4-12). The direction of the gas coming out is vertical, the delayed ignition tube (5) is inserted upside down inside the core propelling part (4), the delay time of the delayed ignition tube (5) is 1.5s, and the core striking part (6) It is made of rubber material and is used to achieve non-lethal kinetic energy attack on the target. The core strike part (6) includes a rubber core body (6-1), a rubber core head (6-2), and a core male. rifling (6-3), the lower part of the rubber bullet core body (6-1) and the bullet core pushing part (4) are glued and fixed, the rubber bullet core head (6-2) and the rubber bullet core body (6- 1) It is an integral structure, and the rubber bullet head (6-2) has a hemispherical structure. During the process of bluntly hitting the target, the rubber bullet head (6-2) is deformed by impact, achieving impact on the target. Non-lethal kinetic energy strike, the male rifling of the bullet core (6-3) matches the female rifling of the bullet case (1-2), and its cross-section is a convex semicircular structure, which is used to give the bullet core striking portion (6) a stable precession direction , the sealing pad (7) and the upper port of the cartridge case (1) are fixed by gluing, the sealing pad (7) is used to seal the cartridge case (1), the upper side of the launching cartridge (2) and the core pushing part (4) The cavity formed on the lower side is the low-pressure chamber (8). 2. The spin-stabilized riot-proof bullet launched based on smooth-bore weapons according to claim 1, characterized in that: the thickness of the propellant chamber cover (4-5) is set to 7~8mm, which can effectively avoid the propellant ( 4-4) The high temperature generated by combustion deforms the striking part (6) of the bullet core, thereby affecting its striking accuracy.