Non-lethal kinetic energy bomb with intelligent gradient response impact rigidity dynamic balance

Abstract

The invention discloses a non-lethal kinetic energy bomb with intelligent gradient response impact rigidity dynamic balance, which comprises a bomb head assembly, a bomb body assembly and a launching assembly, and is characterized in that the bomb head assembly adopts a three-layer nested design: an outer-layer silicon rubber bomb head provides flexible buffering; microcapsules are embedded in the middle-layer high-density polyethylene foam, and the phase-change material is released when heat is generated by impact friction, so that the impact rigidity is dynamically balanced; the inner-layer polyborosiloxane warhead integrates a high-pressure nitrogen gas bag and viscoelastic gel, the flowing path of the gel is regulated and controlled through a two-way vortex plate, and dual energy absorption is achieved by combining high-pressure gas expansion and gel turbulence. The self-rotating stability is ensured through the buckle structure and the bearing ring, and radial sliding is avoided. The launching assembly adopts a high-pressure chamber and low-pressure chamber stratified combustion design, the gunpowder gas release time sequence is accurately controlled, and stable separation of the projectile body is ensured. Through the synergistic effect of the multi-layer composite structure and the intelligent material, efficient dissipation and dynamic rigidity adjustment of impact energy are achieved, and the target serious injury risk is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of non-lethal ammunition, and specifically to a non-lethal kinetic energy projectile with dynamic balance of intelligent gradient response impact stiffness. Background Art

[0002] As a type of non-lethal ammunition with the earliest development and the widest use, non-lethal kinetic energy projectiles are designed to effectively subdue targets through controllable kinetic energy impacts while minimizing the risk of fatality to the greatest extent. Their core function lies in balancing "restraint effectiveness" and "usage safety".

[0003] Although non-lethal kinetic energy projectiles have achieved certain application results, their technical bottlenecks are still significant: firstly, traditional warheads mostly rely on a single hard material (such as rubber or plastic), with insufficient energy absorption gradient. During high-speed impacts, stress concentration is likely to occur due to insufficient material deformation, resulting in soft tissue contusions or even fractures; secondly, the structural design is simplistic, lacking a multi-layer energy dissipation mechanism step by step, and the impact force is directly transmitted to the target, with too high peak acceleration; in addition, existing products cannot dynamically adjust the impact stiffness, and the fixed stiffness leads to large fluctuations in energy release, making it difficult to meet the requirements of different distances and impact intensities. These problems make the existing ammunition have obvious shortcomings in terms of safety and controllability, and innovative solutions are urgently needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-lethal kinetic energy projectile with dynamic balance of intelligent gradient response impact stiffness to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A non-lethal kinetic energy projectile with dynamic balance of intelligent gradient response impact stiffness, comprising a warhead assembly, a projectile body assembly, and a launch assembly, characterized in that: The warhead assembly includes an outer warhead, a middle warhead, and an inner warhead. The outer warhead nests the middle warhead, and the middle warhead nests the inner warhead. The outer warhead includes an outer warhead spherical head, an outer warhead cylindrical wall, an outer warhead spherical head inner cavity, and an outer warhead embedding head. The middle warhead includes a middle warhead spherical head wall, a middle warhead cylindrical wall, a middle warhead inner cavity, microcapsules, and a middle warhead lower buckle. The inner warhead includes an inner warhead spherical head wall, an inner warhead cylindrical wall, an inner warhead high-pressure airbag, an inner warhead middle cavity, an inner warhead liquid-carrying cavity, a two-way eddy current plate, and an inner warhead lower buckle. The outer warhead is integrally formed by vacuum film coating with silicone rubber material. The front part of the outer warhead spherical head is a solid hemisphere, and the rear part of the outer warhead spherical head is a solid cylinder. The outer warhead cylindrical wall is a hollow thin-wall structure. The inner wall surface of the outer warhead spherical head constitutes the outer warhead spherical head inner cavity. The lower end of the outer warhead cylindrical wall is provided with an outer warhead embedding head with a reduced outer diameter. The wall thickness of the outer warhead embedding head is half of the wall thickness of the outer warhead cylindrical wall. The middle warhead is integrally formed by vacuum film coating with high-density polyethylene foam material. Both the middle warhead spherical head wall and the middle warhead cylindrical wall are thin-wall structures. The outer wall surface of the middle warhead spherical head abuts against the outer warhead spherical head inner cavity. The middle warhead spherical head wall, the middle warhead cylindrical wall, and the inner warhead spherical head wall enclose the middle warhead inner cavity. The middle warhead inner cavity is filled with microcapsules. Phase change materials are encapsulated inside the microcapsules. The phase change materials filled inside the microcapsules are released by frictional heat generation during impact. The microcapsules that release the phase change materials by frictional heat generation achieve the dynamic balance of the impact stiffness of the middle warhead. The inner wall surface of the lower end of the middle warhead cylindrical wall protrudes with a middle warhead lower buckle. The cross-section of the middle warhead lower buckle is square. The number of the middle warhead lower buckles is 6. The 6 middle warhead lower buckles are circumferentially arrayed along the central axis of the middle warhead. The inner warhead is integrally processed and manufactured with polyborosiloxane material. Both the inner warhead spherical head wall and the inner warhead cylindrical wall are thin-wall structures. The upper part of the cavity enclosed by the inner warhead spherical head wall and the inner warhead cylindrical wall is attached with an inner warhead high-pressure airbag. The inner warhead high-pressure airbag is processed and manufactured with polyester fiber material. The inner warhead high-pressure airbag is filled with 2.5MPa high-pressure nitrogen, the inner bullet ball head wall and the inner bullet cylindrical wall form a cavity, an inner bullet liquid-carrying cavity is arranged at the lower part, the inner bullet liquid-carrying cavity is filled with viscoelastic gel, the upper end face of the inner bullet liquid-carrying cavity is covered with a two-way vortex plate, the cavity at the upper part of the two-way vortex plate and the lower part of the inner bullet high-pressure airbag is the middle cavity of the inner bullet, the two-way vortex plate includes a plate body, a spiral liquid guide groove and an outlet, the spiral liquid guide groove and the outlet are symmetrically arranged on the upper and lower end faces of the plate body, the number of spiral liquid guide grooves and outlets on a single end face of the plate body is 4, the 4 spiral liquid guide grooves and the 4 outlets are distributed in a circular array along the central axis of the inner bullet, and the outlet is sealed by a thin film The viscoelastic gel filled in the inner warhead's liquid-carrying cavity is subjected to inertial force during impact, flowing along the spiral liquid-conducting groove, breaking through the membrane sealing the outlet, and entering the inner warhead's central cavity. The inner warhead's high-pressure airbag ruptures under compression, and the 2.5MPa high-pressure nitrogen gas filled within the airbag is rapidly released, pushing the viscoelastic gel in the inner warhead's central cavity along the spiral liquid-conducting groove from the outlet into the inner warhead's liquid-carrying cavity. Six inner warhead lower clips are square in cross-section and arranged in a circular array along the inner warhead's central axis. The lower side of the warhead assembly is connected to the projectile assembly, and the projectile assembly is made of carbon fiber-nylon composite material. The projectile assembly includes an upper projectile, a lower projectile and an elastic belt. The upper projectile includes an upper projectile side wall, an upper projectile receiving platform, an upper card hole of the upper projectile, a lower card hole of the upper projectile, an upper receiving ring of the upper projectile and an upper receiving ring of the upper projectile. The side wall of the upper projectile is sleeved with the outer projectile embedded head. The contact surface between the upper projectile side wall and the outer projectile embedded head is fixed with 814 glue. The upper side of the upper projectile receiving platform abuts against the inner projectile. The side wall of the upper projectile receiving platform is provided with an upper card hole of the upper projectile and an upper card hole of the upper projectile. The number of the upper card hole of the upper projectile and the lower card hole of the upper projectile are both 6. The 6 upper card holes of the upper projectile and the 6 lower card holes of the upper projectile are along the upper projectile. The lower part of the upper projectile is provided with a lower projectile body integrally, and the lower projectile body comprises an upper cylinder body of the lower projectile, a lower cylinder body of the lower projectile, a concave ring of the lower projectile and a lower concave cavity of the lower projectile, the outer diameter of the upper cylinder body of the lower projectile is larger than the outer diameter of the lower cylinder body of the lower projectile, the concave ring of the lower projectile is a circular ring with a semicircular cross section, and a lower concave cavity of the lower projectile is provided at the axis center of the lower end surface of the lower cylinder of the lower projectile, and the lower concave cavity of the lower projectile is a bowl-shaped structure. An elastic belt is provided at the connecting part of the upper projectile and the lower projectile, and the elastic belt is a protruding cylindrical structure; A launch assembly is mechanically inserted under the projectile assembly. The launch assembly includes a cartridge element and a charge. The cartridge element is used to connect and support the lower projectile. The cartridge element includes a cartridge case, a cartridge case bulge ring, a cartridge case bottom edge, a primer hole, a high-pressure chamber, a flash hole, and a low-pressure chamber. The upper end surface of the cartridge case abuts against the lower side of the cartridge belt. A cartridge case bulge ring with a semi-circular cross-section is provided inside the upper part of the cartridge case. The cartridge case bulge ring is squeezed into the concave ring of the lower projectile. The side wall of the lower projectile abuts against the inner wall of the cartridge case. The contact surface between the cartridge case bulge ring and the concave ring of the lower projectile and the contact surface between the side wall of the lower projectile and the inner wall of the cartridge case are sealed with hot melt adhesive. A cartridge case bottom edge protrudes from the bottom of the cartridge case. A cylindrical primer hole is opened at the center of the bottom end surface of the cartridge case. A cylindrical high-pressure chamber is integrally provided inside the cartridge case and above the primer hole. A cylindrical flash hole is opened at the center of the upper end surface of the high-pressure chamber. The flash hole is sealed by a brass diaphragm. The cartridge element is filled with a charge. The charge includes a primer and propellant. The primer is a mechanically impact primer. The primer is riveted inside the primer hole. The propellant is filled inside the high-pressure chamber. The propellant is bulk smokeless powder. The cavity formed by the inner side of the cartridge case, the outside of the high-pressure chamber, and the lower concave cavity of the lower projectile is the low-pressure chamber.

[0006] Preferably, the warhead assembly, the projectile assembly, and the launch assembly are all axisymmetric structures, and the central axes of the warhead assembly, the projectile assembly, and the launch assembly coincide.

[0007] Preferably, the contact surfaces between the outer warhead, the middle warhead, and the inner warhead are adhesively connected with 814 glue.

[0008] Preferably, the snap connection between the lower snap of the middle warhead and the upper card hole of the upper projectile body and the snap connection between the lower snap of the inner warhead and the lower card hole of the upper projectile body prevent the warhead assembly from radially slipping during the spinning process.

[0009] Preferably, the spiral liquid guide groove can extend the impact duration of the warhead assembly by greatly slowing down the flow rate of the viscoelastic gel.

[0010] Preferably, after the primer is struck and ignited by an anti-riot firing pin, the propellant is ignited. The propellant burns violently to generate a large amount of gunpowder gas, which breaks through the brass film sealing the flash hole. The gunpowder gas enters the low-pressure chamber to ablate the hot-melt adhesive sealing the projectile assembly and the firing assembly, and pushes the projectile assembly to separate from the firing assembly. The warhead assembly and the projectile assembly fly out of the anti-riot gun barrel. The warhead assembly impacts a living target. The outer warhead, the middle warhead, and the inner warhead are compressed in sequence, dissipating the impact energy through deformation, reducing the impact acceleration. When impacted, friction generates heat to trigger the release of the phase change material from the microcapsule, dynamically adjusting the stiffness of the middle warhead. The viscoelastic gel in the liquid cavity of the inner warhead enters the middle cavity of the inner warhead under the action of inertia force. The high-pressure airbag in the inner warhead is squeezed and ruptured, releasing high-pressure nitrogen gas of 2.5 MPa, pushing the viscoelastic gel to enter the liquid cavity of the inner warhead again. A large amount of impact energy is dissipated through the dual energy absorption of the expansion of high-pressure nitrogen gas and the turbulence of the viscoelastic gel, thereby achieving the purpose of deceleration and reducing the probability of accidental serious injury.

[0011] The present invention has the following advantages compared with the prior art: (1) The present invention innovatively designs a multi-layer gradient nested warhead structure. Through the nested design of the outer silicone rubber warhead, the middle high-density polyethylene foam warhead, and the inner polyborosiloxane warhead, an energy absorption gradient level is constructed. The outer flexible silicone rubber provides initial buffering. The middle foam material is embedded with microcapsules, and when impacted, friction generates heat to trigger the release of the phase change material, dynamically adjusting the middle stiffness. The inner layer integrates a high-pressure airbag and viscoelastic gel, and combines a bi-directional eddy current plate to control the gel flow path. The multi-layer structure collaboratively achieves the gradual dissipation of impact energy, significantly reducing the peak acceleration, avoiding stress concentration, and at the same time enhancing the safety threshold through dynamic stiffness balance; (2) The present invention innovatively applies a phase change microcapsule dynamic stiffness adjustment mechanism. The microcapsules filled in the middle warhead encapsulate the phase change material. When impacted, friction generates heat to promote the release of the phase change material, absorbing energy through solid-liquid phase change and adjusting the middle stiffness. This mechanism enables the warhead to quickly disperse kinetic energy in the initial stage of impact (high stiffness), and prolong the buffering time in the later stage of impact (low stiffness), achieving an adaptive dynamic balance of stiffness. Compared with traditional fixed-stiffness materials, this design can accurately match different impact strength requirements and avoid the risk of excessive injury caused by energy release fluctuations; (3) The present invention innovatively designs a high-pressure airbag and gel reverse flow energy absorption system. The inner warhead integrates a high-pressure nitrogen gas airbag and viscoelastic gel, and constructs a bi-directional flow path through the spiral liquid guide groove and the thin film sealed outflow port of the bi-directional eddy current plate. When impacted, the gel breaks through the thin film and enters the middle cavity under the action of inertia force. After the airbag ruptures, the high-pressure nitrogen gas pushes the gel to flow back in the reverse direction, forming turbulent flow energy consumption. This reverse flow mechanism absorbs energy through the dual energy absorption of gas expansion and fluid friction, significantly prolonging the impact duration, converting instantaneous kinetic energy into progressive heat energy, and reducing the probability of target tissue damage; (4)The present invention innovatively designs a buckle - receiving ring anti - offset stable structure. A nested connection design of a lower buckle of the middle - layer warhead, a lower buckle of the inner - layer warhead and an upper - body receiving ring is adopted between the warhead and the projectile body. After the buckle is inserted into the upper card hole, the receiving ring provides radial support to ensure the coaxiality of the warhead and the projectile body during the spin process, and avoid asymmetric impact caused by radial slip. While ensuring the connection strength, this structure improves the ballistic stability and reduces the problem of uneven energy distribution caused by rotational offset; (5)The present invention selects a stratified combustion launch system with high - and low - pressure chambers. The launch assembly adopts a stratified design of a high - pressure chamber and a low - pressure chamber. The high - pressure chamber is filled with smokeless gunpowder, and the flame - transfer hole is sealed by a brass diaphragm. After firing, the gunpowder gas breaks through the diaphragm and enters the low - pressure chamber, and the ablation of the hot - melt adhesive realizes the separation of the projectile body. Stratified combustion controls the gas release pressure and timing, reduces the launch overload, and ensures the smooth exit of the projectile body from the barrel. Combined with the sealing structure of the projectile belt and the projectile - case convex ring, the airtightness is further optimized, the launch accuracy and controllability are improved, and the ballistic deviation caused by power fluctuation is avoided. Description of the Drawings

[0012] Figure 1 is a three - dimensional schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the present invention; Figure 3 is a 1 / 2 three - dimensional schematic diagram of the outer - layer warhead 1 - 1 in the present invention; Figure 4 is a structural schematic diagram of the middle - layer warhead 1 - 2 in the present invention; Figure 5 is a structural schematic diagram of the inner - layer warhead 1 - 3 in the present invention; Figure 6 is a structural schematic diagram of the two - way eddy - current plate 1 - 3 - 6 in the present invention; Figure 7 is a 3 / 4 three - dimensional schematic diagram of the projectile - body assembly 2 in the present invention; Figure 8 is a structural schematic diagram of the launch assembly 3 in the present invention; Figure 9 is a three - dimensional schematic diagram of the launch assembly 3 in the present invention.

[0013] In the figure: 1. Warhead assembly, 1-1. Outer warhead, 1-1-1. Outer warhead spherical head, 1-1-2. Outer warhead cylindrical wall, 1-1-3. Outer warhead spherical cavity, 1-1-4. Outer warhead embedded head, 1-2. Middle warhead, 1-2-1. Middle warhead spherical wall, 1-2-2. Middle warhead cylindrical wall, 1-2-3. Middle warhead cavity, 1-2-4. Microcapsule, 1-2-5. Lower buckle of middle warhead, 1-3. Inner warhead, 1-3-1. Inner warhead spherical wall, 1-3-2. Inner warhead cylindrical wall, 1-3-3. High-pressure airbag of inner warhead, 1-3-4. Middle cavity of inner warhead, 1-3-5. Liquid-carrying cavity of inner warhead, 1-3-6. Bidirectional eddy current plate, 1-3-7. Lower buckle of inner warhead, 2. Projectile body assembly, 2-1. Upper projectile body, 2-1-1. Side wall of upper projectile body, 2-1-2. Upper receiving platform of projectile body, 2-1-3. Upper card hole of upper projectile body, 2-1-4. Lower card hole of upper projectile body, 2-1-5. Upper receiving ring of upper projectile body, 2-1-6. Lower receiving ring of upper projectile body, 2-2. Lower projectile body, 2-2-1. Upper cylinder of lower projectile body, 2-2-2. Lower cylinder of lower projectile body, 2-2-3. Concave ring of lower projectile body, 2-2-4. Lower concave cavity of lower projectile body, 2-3. Cartridge belt, 3. Launch assembly, 3-1. Cartridge case element, 3-1-1. Cartridge case, 3-1-2. Cartridge case convex ring, 3-1-3. Cartridge case bottom edge, 3-1-4. Primer hole, 3-1-5. High-pressure chamber, 3-1-6. Flame transfer hole, 3-1-7. Low-pressure chamber, 3-2. Charge, 3-2-1. Primer, 3-2-2. Propellant charge. Detailed implementation manners

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part 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 shall fall within the protection scope of the present invention.

[0015] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a non-lethal kinetic energy projectile with intelligent gradient response impact stiffness dynamic balance, including a warhead assembly 1, a projectile body assembly 2 and a launch assembly 3.

[0016] In combination with Figures 2 - 6, the warhead assembly 1 includes an outer warhead 1-1, a middle warhead 1-2 and an inner warhead 1-3. The outer warhead 1-1 nests the middle warhead 1-2, and the middle warhead 1-2 nests the inner warhead 1-3. The outer warhead 1-1 includes an outer warhead spherical head 1-1-1, an outer warhead cylindrical wall 1-1-2, an outer warhead spherical head inner cavity 1-1-3 and an outer warhead embedded head 1-1-4. The middle warhead 1-2 includes a middle warhead spherical head wall 1-2-1, a middle warhead cylindrical wall 1-2-2, a middle warhead inner cavity 1-2-3, microcapsules 1-2-4 and a middle warhead lower buckle 1-2-5. The inner warhead 1-3 includes an inner warhead spherical head wall 1-3-1, an inner warhead cylindrical wall 1-3-2, an inner warhead high-pressure airbag 1-3-3, an inner warhead middle cavity 1-3-4, an inner warhead liquid-carrying cavity 1-3-5, a two-way eddy current plate 1-3-6 and an inner warhead lower buckle 1-3-7. The outer warhead 1-1 is integrally formed by vacuum coating with silicone rubber material. The front part of the outer warhead spherical head 1-1-1 is a solid hemisphere, and the rear part of the outer warhead spherical head 1-1-1 is a solid cylinder. The outer warhead cylindrical wall 1-1-2 is a hollow thin-wall structure. The inner wall surface of the outer warhead spherical head 1-1-1 forms the outer warhead spherical head inner cavity 1-1-3. The lower end of the outer warhead cylindrical wall 1-1-2 is provided with an outer warhead embedded head 1-1-4 with a reduced outer diameter. The wall thickness of the outer warhead embedded head 1-1-4 is half of the wall thickness of the outer warhead cylindrical wall 1-1-2. The middle warhead 1-2 is integrally formed by vacuum coating with high-density polyethylene foam material. Both the middle warhead spherical head wall 1-2-1 and the middle warhead cylindrical wall 1-2-2 are thin-wall structures. The outer wall surface of the middle warhead spherical head wall 1-2-1 abuts against the outer warhead spherical head inner cavity 1-1-3. The middle warhead spherical head wall 1-2-1, the middle warhead cylindrical wall 1-2-2 and the inner warhead spherical head wall 1-3-1 enclose the middle warhead inner cavity 1-2-3. The middle warhead inner cavity 1-2-3 is filled with microcapsules 1-2-4. Phase change materials are encapsulated inside the microcapsules 1-2-4. The phase change materials filled inside the microcapsules 1-2-4 are released by frictional heat generation during impact. The microcapsules 1-2-4 releasing the phase change materials by frictional heat generation achieve the dynamic balance of the impact stiffness of the middle warhead 1-2. The inner wall surface of the lower end of the middle warhead cylindrical wall 1-2-2 is protrudingly provided with a middle warhead lower buckle 1-2-5. The cross section of the middle warhead lower buckle 1-2-5 is square. The number of the middle warhead lower buckles 1-2-5 is 6. The 6 middle warhead lower buckles 1-2-5 are circumferentially arrayed along the central axis of the middle warhead 1-2. The inner warhead 1-3 is integrally processed and manufactured with polyborosiloxane material. Both the inner warhead spherical head wall 1-3-1 and the inner warhead cylindrical wall 1-3-2 are thin-wall structures.The upper part of the cavity formed by the inner warhead spherical head wall 1-3-1 and the inner warhead cylindrical wall 1-3-2 is attached with the inner warhead high-pressure airbag 1-3-3. The inner warhead high-pressure airbag 1-3-3 is made of polyester fiber material. The inner warhead high-pressure airbag 1-3-3 is filled with high-pressure nitrogen of 2.5 MPa. The lower part of the cavity formed by the inner warhead spherical head wall 1-3-1 and the inner warhead cylindrical wall 1-3-2 is provided with the inner warhead liquid-carrying cavity 1-3-5. The inner warhead liquid-carrying cavity 1-3-5 is filled with viscoelastic gel. The upper end face of the inner warhead liquid-carrying cavity 1-3-5 is covered with a two-way eddy current plate 1-3-6. The cavity between the upper part of the two-way eddy current plate 1-3-6 and the lower part of the inner warhead high-pressure airbag 1-3-3 is the inner warhead middle cavity 1-3-4. The two-way eddy current plate 1-3-6 includes a plate body 1-3-6-1, spiral liquid-guiding grooves 1-3-6-2 and outflow ports 1-3-6-3. The spiral liquid-guiding grooves 1-3-6-2 and the outflow ports 1-3-6-3 are symmetrically arranged on the upper and lower end faces of the plate body 1-3-6-1. The number of the spiral liquid-guiding grooves 1-3-6-2 and the outflow ports 1-3-6-3 on a single end face of the plate body 1-3-6-1 is 4 each. The 4 spiral liquid-guiding grooves 1-3-6-2 and the 4 outflow ports 1-3-6-3 are all arranged in a circumferential array along the central axis of the inner warhead 1-3. The outflow ports 1-3-6-3 are sealed by a thin film. When impacted, the viscoelastic gel filled in the inner warhead liquid-carrying cavity 1-3-5 flows along the spiral liquid-guiding grooves 1-3-6-2 under the action of inertia force, breaks through the thin film sealing the outflow ports 1-3-6-3, and enters the inner warhead middle cavity 1-3-4. The inner warhead high-pressure airbag 1-3-3 is broken after being squeezed. The high-pressure nitrogen of 2.5 MPa filled in the inner warhead high-pressure airbag 1-3-3 is quickly released, pushing the viscoelastic gel in the inner warhead middle cavity 1-3-4 to enter the inner warhead liquid-carrying cavity 1-3-5 from the outflow ports 1-3-6-3 along the spiral liquid-guiding grooves 1-3-6-2. The inner wall surface of the lower end part of the inner warhead cylindrical wall 1-3-2 is prominently provided with inner warhead lower buckles 1-3-7. The cross section of the inner warhead lower buckles 1-3-7 is square. The number of the inner warhead lower buckles 1-3-7 is 6. The 6 inner warhead lower buckles 1-3-7 are arranged in a circumferential array along the central axis of the inner warhead 1-3; Combined with Figure 2 and Figure 7, the lower side of the warhead assembly 1 is connected to the projectile body assembly 2, the projectile body assembly 2 is made of carbon fiber-nylon composite material, the projectile body assembly 2 includes an upper projectile body 2-1, a lower projectile body 2-2 and a driving band 2-3, the upper projectile body 2-1 includes an upper projectile body side wall 2-1-1, an upper projectile body receiving platform 2-1-2, upper projectile body upper layer clamping holes 2-1-3, upper projectile body lower layer clamping holes 2-1-4, an upper projectile body upper layer receiving ring 2-1-5 and an upper projectile body lower layer receiving ring 2-1-6, the upper projectile body side wall 2-1-1 sleeves the outer warhead embedding head 1-1-4, and the contact surface between the upper projectile body side wall 2-1-1 and the outer warhead embedding head 1-1-4 is fixed by gluing with 814 glue. The upper side of the upper projectile body receiving platform 2-1-2 abuts against the inner warhead 1-3. The side wall of the upper projectile body receiving platform 2-1-2 is provided with upper projectile body upper layer clamping holes 2-1-3 and upper projectile body lower layer clamping holes 2-1-4. The number of the upper projectile body upper layer clamping holes 2-1-3 and the upper projectile body lower layer clamping holes 2-1-4 is 6 each. The 6 upper projectile body upper layer clamping holes 2-1-3 and the 6 upper projectile body lower layer clamping holes 2-1-4 are circumferentially arrayed along the central axis of the upper projectile body 2-1. The lower buckle 1-2-5 of the middle warhead is snapped into the upper projectile body upper layer clamping hole 2-1-3, and the lower buckle 1-3-7 of the inner warhead is snapped into the upper projectile body lower layer clamping hole 2-1-4. The lower end of the middle warhead cylinder wall 1-2-2 abuts against the upper projectile body lower layer receiving ring 2-1-6, and the lower end of the inner warhead cylinder wall 1-3-2 abuts against the upper projectile body upper layer receiving ring 2-1-5. The lower part of the upper projectile body 2-1 is integrally provided with the lower projectile body 2-2. The lower projectile body 2-2 includes a lower projectile body upper cylinder 2-2-1, a lower projectile body lower cylinder 2-2-2, a lower projectile body concave ring 2-2-3 and a lower projectile body lower concave cavity 2-2-4. The outer diameter of the lower projectile body upper cylinder 2-2-1 is larger than the outer diameter of the lower projectile body lower cylinder 2-2-2. The lower projectile body concave ring 2-2-3 is a circular ring with a semicircular cross-section. A lower projectile body lower concave cavity 2-2-4 is opened at the center of the lower end face of the lower projectile body lower cylinder 2-2-2. The lower projectile body lower concave cavity 2-2-4 is in a bowl-shaped structure. A driving band 2-3 is arranged at the connection part of the upper projectile body 2-1 and the lower projectile body 2-2. The driving band 2-3 is a protruding cylindrical structure; Combined with Figure 2 , Figure 8 and Figure 9, a launch assembly 3 is mechanically inserted under the projectile body assembly 2. The launch assembly 3 includes a cartridge element 3-1 and a charge 3-2. The cartridge element 3-1 is used to connect and support the lower projectile body 2-2. The cartridge element 3-1 includes a cartridge case 3-1-1, a cartridge case collar 3-1-2, a cartridge case bottom edge 3-1-3, a primer hole 3-1-4, a high-pressure chamber 3-1-5, a flash hole 3-1-6, and a low-pressure chamber 3-1-7. The upper end face of the cartridge case 3-1-1 abuts against the lower side of the cartridge belt 2-3. A cartridge case collar 3-1-2 with a semi-circular cross-section is provided inside the upper part of the cartridge case 3-1-1. The cartridge case collar 3-1-2 is squeezed into the lower projectile body concave ring 2-2-3. The side wall of the lower projectile body 2-2 abuts against the inner wall of the cartridge case 3-1-1. The contact surface between the cartridge case collar 3-1-2 and the lower projectile body concave ring 2-2-3 and the contact surface between the side wall of the lower projectile body 2-2 and the inner wall of the cartridge case 3-1-1 are sealed with hot melt adhesive. A cartridge case bottom edge 3-1-3 protrudes from the bottom of the cartridge case 3-1-1. A cylindrical primer hole 3-1-4 is opened at the center of the bottom end face of the cartridge case 3-1-1. A cylindrical high-pressure chamber 3-1-5 is integrally provided inside the cartridge case 3-1-1 and above the primer hole 3-1-4. A cylindrical flash hole 3-1-6 is opened at the center of the upper end face of the high-pressure chamber 3-1-5. The flash hole 3-1-6 is sealed by a brass diaphragm. The cartridge element 3-1 is filled with a charge 3-2. The charge 3-2 includes a primer 3-2-1 and a propellant 3-2-2. The primer 3-2-1 is a mechanically impact primer. The primer 3-2-1 is riveted inside the primer hole 3-1-4. The propellant 3-2-2 is filled inside the high-pressure chamber 3-1-5. The propellant 3-2-2 is bulk smokeless powder. The cavity formed by the inner side of the cartridge case 3-1-1, the outside of the high-pressure chamber 3-1-5, and the lower concave cavity 2-2-4 of the lower projectile body is the low-pressure chamber 3-1-7.

[0017] Combined with Figure 1 and Figure 2 , the warhead assembly 1, the projectile body assembly 2, and the launch assembly 3 are all axisymmetric structures, and the central axes of the warhead assembly 1, the projectile body assembly 2, and the launch assembly 3 coincide.

[0018] In this embodiment, the contact surfaces between the outer warhead 1-1, the middle warhead 1-2, and the inner warhead 1-3 are adhesively connected with 814 glue.

[0019] In this embodiment, the snap-fit connection between the lower snap of the middle warhead 1-2-5 and the upper layer card hole 2-1-3 of the upper projectile body, and the snap-fit connection between the lower snap of the inner warhead 1-3-7 and the lower layer card hole 2-1-4 of the upper projectile body ensure that there is no radial slip between the warhead assembly 1 and the projectile body assembly 2 during the spinning process.

[0020] As Figure 6As shown, the spiral liquid guiding groove 1-3-6-2 can extend the impact duration of the warhead assembly 1 by significantly slowing down the flow rate of the viscoelastic gel.

[0021] In this embodiment, after the primer 3-2-1 is struck and fired by the anti-riot gun firing pin, the propellant 3-2-2 is ignited. The propellant 3-2-2 burns violently to generate a large amount of gunpowder gas, breaking through the brass film of the sealed flash hole 3-1-6. The gunpowder gas enters the low-pressure chamber 3-1-7 to ablate the hot melt adhesive between the sealed projectile assembly 2 and the launch assembly 3, pushing the projectile assembly 2 and the launch assembly 3 to separate. The warhead assembly 1 and the projectile assembly 2 fly out of the anti-riot gun barrel. The warhead assembly 1 impacts a living target. The outer warhead 1-1, the middle warhead 1-2, and the inner warhead 1-3 are compressed in sequence, dissipating the impact energy through deformation, reducing the impact acceleration. When impacted, friction generates heat to trigger the microcapsules 1-2-4 to release the phase change material, dynamically adjusting the stiffness of the middle warhead 1-2. The viscoelastic gel in the inner warhead liquid cavity 1-3-5 enters the middle cavity 1-3-4 of the inner warhead under the action of inertia force. The high-pressure airbag 1-3-3 of the inner warhead is ruptured by the extrusion, releasing high-pressure nitrogen of 2.5 MPa, pushing the viscoelastic gel to enter the inner warhead liquid cavity 1-3-5 again. A large amount of impact energy is dissipated through the dual energy absorption of the expansion of high-pressure nitrogen and the turbulence of the viscoelastic gel, thereby achieving the purpose of deceleration and reducing the probability of accidental serious injury.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-lethal kinetic energy bullet with intelligent gradient response impact stiffness dynamic balance, comprising a warhead assembly (1), a projectile body assembly (2) and a launch assembly (3), characterized in that: The warhead assembly (1) includes an outer warhead (1-1), a middle warhead (1-2), and an inner warhead (1-3). The outer warhead (1-1) nests the middle warhead (1-2), and the middle warhead (1-2) nests the inner warhead (1-3). The outer warhead (1-1) includes an outer warhead spherical head (1-1-1), an outer warhead cylindrical wall (1-1-2), an outer warhead spherical head inner cavity (1-1-3), and an outer warhead embedded head (1-1-4). The middle warhead (1-2) includes a middle warhead spherical head wall (1-2-1), a middle warhead cylindrical wall (1-2-2), a middle warhead inner cavity (1-2-3), microcapsules (1-2-4), and a middle warhead lower buckle (1-2-5). The inner warhead (1-3) includes an inner warhead spherical head wall (1-3-1), an inner warhead cylindrical wall (1-3-2), an inner warhead high-pressure airbag (1-3-3), an inner warhead middle cavity (1-3-4), an inner warhead liquid-carrying cavity (1-3-5), a two-way eddy current plate (1-3-6), and an inner warhead lower buckle (1-3-7). The outer warhead (1-1) is integrally formed by vacuum coating with silicone rubber material. The front part of the outer warhead spherical head (1-1-1) is a solid hemisphere, and the rear part of the outer warhead spherical head (1-1-1) is a solid cylinder. The outer warhead cylindrical wall (1-1-2) is a hollow thin-wall structure. The inner wall surface of the outer warhead spherical head (1-1-1) forms the outer warhead spherical head inner cavity (1-1-3). The lower end of the outer warhead cylindrical wall (1-1-2) is provided with an outer warhead embedded head (1-1-4) with a reduced outer diameter. The wall thickness of the outer warhead embedded head (1-1-4) is half of the wall thickness of the outer warhead cylindrical wall (1-1-2). The middle warhead (1-2) is integrally formed by vacuum coating with high-density polyethylene foam material. Both the middle warhead spherical head wall (1-2-1) and the middle warhead cylindrical wall (1-2-2) are thin-wall structures. The outer wall surface of the middle warhead spherical head wall (1-2-1) abuts against the outer warhead spherical head inner cavity (1-1-3). The middle warhead spherical head wall (1-2-1), the middle warhead cylindrical wall (1-2-2), and the inner warhead spherical head wall (1-3-1) enclose the middle warhead inner cavity (1-2-3). The middle warhead inner cavity (1-2-3) is filled with microcapsules (1-2-4). Phase change materials are encapsulated inside the microcapsules (1-2-4). The phase change materials filled inside the microcapsules (1-2-4) are released by frictional heat generation during impact. The microcapsules (1-2-4) that release the phase change materials by frictional heat generation achieve the dynamic balance of the impact stiffness of the middle warhead (1-2). The inner wall surface of the lower end of the middle warhead cylindrical wall (1-2-2) protrudes to form a middle warhead lower buckle (1-2-5). The cross-section of the middle warhead lower buckle (1-2-5) is square, and the number of the middle warhead lower buckles (1-2-5) is 6.The six middle warhead lower buckles (1-2-5) are distributed in a circular array along the central axis of the middle warhead (1-2); the inner warhead (1-3) is made of an integrated process of polyborosiloxane material; the inner warhead ball head wall (1-3-1) and the inner warhead column wall (1-3-2) are both thin-walled structures; the inner warhead ball head wall (1-3-1) and the inner warhead column wall (1-3-2) form a cavity to which an inner warhead high-pressure airbag (1-3-3) is attached; the inner warhead high-pressure airbag (1-3-3) is made of polyester fiber material; the inner part of the inner warhead high-pressure airbag (1-3-3) is filled with 2.5MPa high-pressure nitrogen; the inner warhead ball head wall (1-3-1) and the inner warhead column wall An inner warhead liquid-carrying cavity (1-3-5) is provided at the lower part of the cavity surrounded by (1-3-2), the inner layer warhead liquid-carrying cavity (1-3-5) is filled with viscoelastic gel, the upper end surface of the inner layer warhead liquid-carrying cavity (1-3-5) is sealed with a bidirectional vortex plate (1-3-6), the cavity between the upper part of the bidirectional vortex plate (1-3-6) and the lower part of the inner layer warhead high-pressure airbag (1-3-3) is the inner layer warhead middle cavity (1-3-4), the bidirectional vortex plate (1-3-6) includes a plate body (1-3-6-1), a spiral liquid guide groove (1-3-6-2) and an outlet (1-3-6-3), the spiral liquid guide groove (1-3-6-2) and the outlet (1-3-6-3) are located above and below the plate body (1-3-6-1). The two end faces are arranged symmetrically, and the number of spiral liquid guide grooves (1-3-6-2) and outlets (1-3-6-3) on a single end face of the plate body (1-3-6-1) is 4. The 4 spiral liquid guide grooves (1-3-6-2) and the 4 outlets (1-3-6-3) are all distributed in a circular array along the central axis of the inner warhead (1-3). The outlet (1-3-6-3) is sealed by a film. The viscoelastic gel filled in the liquid-carrying cavity (1-3-5) of the inner warhead is subjected to inertial force during impact, flows along the spiral liquid guide groove (1-3-6-2), breaks through the film sealing the outlet (1-3-6-3), and enters the central cavity (1-3-4) of the inner warhead. The inner warhead high-pressure airbag (1-3 -3) is ruptured after being squeezed, and the inner layer bullet high pressure airbag (1-3-3) is filled with 2.5MPa high pressure nitrogen and is quickly released, pushing the viscoelastic gel in the middle cavity (1-3-4) of the inner layer bullet along the spiral liquid guide groove (1-3-6-2) from the outlet (1-3-6-3) into the inner layer bullet liquid carrying cavity (1-3-5), and the inner layer bullet lower buckle (1-3-7) is protrudingly provided on the inner wall surface of the lower end of the inner layer bullet column wall (1-3-2), and the cross section of the inner layer bullet lower buckle (1-3-7) is square, and the number of the inner layer bullet lower buckle (1-3-7) is 6, and the 6 inner layer bullet lower buckles (1-3-7) are distributed in a circular array along the central axis of the inner layer bullet (1-3); The lower side of the warhead assembly (1) is connected to the projectile body assembly (2). The projectile body assembly (2) is made of carbon fiber-nylon composite material. The projectile body assembly (2) includes an upper projectile body (2-1), a lower projectile body (2-2) and a cartridge band (2-3). The upper projectile body (2-1) includes an upper projectile body side wall (2-1-1), an upper projectile body receiving platform (2-1-2), upper projectile body upper layer clamping holes (2-1-3), upper projectile body lower layer clamping holes (2-1-4), an upper projectile body upper layer receiving ring (2-1-5) and an upper projectile body lower layer receiving ring (2-1-6). The upper projectile body side wall (2-1-1) sleeved the outer warhead embedding head (1-1-4). An 814 glue is used for adhesive fixation between the contact surfaces of the upper projectile body side wall (2-1-1) and the outer warhead embedding head (1-1-4). The upper side of the upper projectile body receiving platform (2-1-2) abuts against the inner warhead (1-3). The side wall of the upper projectile body receiving platform (2-1-2) is provided with upper projectile body upper layer clamping holes (2-1-3) and upper projectile body lower layer clamping holes (2-1-4). The number of the upper projectile body upper layer clamping holes (2-1-3) and the upper projectile body lower layer clamping holes (2-1-4) is 6 each. The 6 upper projectile body upper layer clamping holes (2-1-3) and the 6 upper projectile body lower layer clamping holes (2-1-4) are arranged in a circumferential array along the central axis of the upper projectile body (2-1). The middle warhead lower buckle (1-2-5) is snapped into the upper projectile body upper layer clamping hole (2-1-3), and the inner warhead lower buckle (1-3-7) is snapped into the upper projectile body lower layer clamping hole (2-1-4). The lower end of the middle warhead column wall (1-2-2) abuts against the upper projectile body lower layer receiving ring (2-1-6), and the lower end of the inner warhead column wall (1-3-2) abuts against the upper projectile body upper layer receiving ring (2-): The lower part of the upper projectile body (2-1) is integrally provided with the lower projectile body (2-2). The lower projectile body (2-2) includes a lower projectile body upper column (2-2-1), a lower projectile body lower column (2-2-2), a lower projectile body concave ring (2-2-3) and a lower projectile body lower concave cavity (2-2-4). The outer diameter of the lower projectile body upper column (2-2-1) is larger than the outer diameter of the lower projectile body lower column (2-2-2). The lower projectile body concave ring (2-2-3) is a ring with a semicircular cross-section. A lower projectile body lower concave cavity (2-2-4) is opened at the center of the lower end face of the lower projectile body lower column (2-2-2). The lower projectile body lower concave cavity (2-2-4) has a bowl-shaped structure. A cartridge band (2-3) is arranged at the connection part of the upper projectile body (2-1) and the lower projectile body (2-2). The cartridge band (2-3) is a protruding cylindrical structure; The lower side of the projectile assembly (2) is mechanically plugged with a launch assembly (3). The launch assembly (3) includes a cartridge case element (3-1) and a charge (3-2). The cartridge case element (3-1) is used to connect and support the lower projectile body (2-2). The cartridge case element (3-1) includes a cartridge case (3-1-1), a cartridge case convex ring (3-1-2), a cartridge case bottom edge (3-1-3), a primer hole (3-1-4), a high-pressure chamber (3-1-5), a flash hole (3-1-6), and a low-pressure chamber (3-1-7). The upper end face of the cartridge case (3-1-1) abuts against the lower side of the driving band (2-3). Inside the upper part of the cartridge case (3-1-1), a cartridge case convex ring (3-1-2) with a semi-circular cross-section is provided. The cartridge case convex ring (3-1-2) is squeezed into the lower projectile body concave ring (2-2-3). The side wall of the lower projectile body (2-2) abuts against the inner wall of the cartridge case (3-1-1). The contact surface between the cartridge case convex ring (3-1-2) and the lower projectile body concave ring (2-2-3), and the contact surface between the side wall of the lower projectile body (2-2) and the inner wall of the cartridge case (3-1-1) are sealed with hot melt adhesive. The bottom of the cartridge case (3-1-1) protrudes to form a cartridge case bottom edge (3-1-3). At the center of the bottom end face of the cartridge case (3-1-1), a cylindrical primer hole (3-1-4) is opened. Inside the cartridge case (3-1-1), above the primer hole (3-1-4), a cylindrical high-pressure chamber (3-1-5) is integrally provided. At the center of the upper end face of the high-pressure chamber (3-1-5), a cylindrical flash hole (3-1-6) is opened. The flash hole (3-1-6) is sealed by a brass diaphragm. The inside of the cartridge case element (3-1) is filled with a charge (3-2). The charge (3-2) includes a primer (3-2-1) and a propellant (3-2-2). The primer (3-2-1) is a mechanically impact primer. The primer (3-2-1) is riveted inside the primer hole (3-1-4). The propellant (3-2-2) is filled inside the high-pressure chamber (3-1-5). The propellant (3-2-2) is bulk smokeless powder. The cavity formed by the inside of the cartridge case (3-1-1), the outside of the high-pressure chamber (3-1-5), and the lower concave cavity of the lower projectile body (2-2-4) is the low-pressure chamber (3-1-7).

2. The non-lethal kinetic energy projectile with intelligent gradient response shock stiffness dynamic balance according to claim 1, characterized in that: The projectile head assembly (1), the projectile body assembly (2), and the launch assembly (3) are all axisymmetric structures, and the central axes of the projectile head assembly (1), the projectile body assembly (2), and the launch assembly (3) coincide.

3. The non-lethal kinetic energy bullet with intelligent gradient response shock stiffness dynamic balance according to claim 1, characterized in that: The contact surfaces between the outer projectile head (1-1), the middle projectile head (1-2), and the inner projectile head (1-3) are adhesively connected with 814 glue.

4. The non-lethal kinetic energy bullet with intelligent gradient response shock stiffness dynamic balance according to claim 1, characterized in that: The snap-fit connection between the lower snap of the middle projectile head (1-2-5) and the upper layer snap hole of the upper projectile body (2-1-3), and the snap-fit connection between the lower snap of the inner projectile head (1-3-7) and the lower layer snap hole of the upper projectile body (2-1-4) prevent the projectile head assembly (1) from experiencing radial slip during the spinning process.

5. The non-lethal kinetic energy projectile with intelligent gradient response shock stiffness dynamic balance according to claim 1, characterized in that: The spiral liquid guide groove (1-3-6-2) can extend the impact duration of the projectile head assembly (1) by significantly reducing the flow rate of the viscoelastic gel.

6. The non-lethal kinetic energy projectile with intelligent gradient response impact stiffness dynamic balance according to claim 1, characterized in that: After the primer (3-2-1) is struck and ignited by the anti-riot firing pin, it ignites the propellant (3-2-2). The propellant (3-2-2) burns violently to generate a large amount of gunpowder gas, which breaks through the brass film sealing the flash hole (3-1-6). The gunpowder gas enters the low-pressure chamber (3-1-7) to ablate the hot-melt adhesive sealing the projectile assembly (2) and the firing assembly (3), and pushes the projectile assembly (2) to separate from the firing assembly (3). The projectile assembly (1) and the projectile body assembly (2) fly out of the anti-riot gun barrel. The projectile assembly (1) impacts a living target. The outer projectile (1-1), the middle projectile (1-2), and the inner projectile (1-3) are compressed in sequence, dissipating the impact energy through deformation, reducing the impact acceleration. When impacted, friction generates heat to trigger the microcapsules (1-2-4) to release the phase change material, dynamically adjusting the stiffness of the middle projectile (1-2). The viscoelastic gel in the inner projectile liquid chamber (1-3-5) enters the middle cavity (1-3-4) of the inner projectile under the action of inertia force. The high-pressure airbag (1-3-3) of the inner projectile is ruptured by the extrusion, releasing high-pressure nitrogen of 2.5 MPa, and pushing the viscoelastic gel to enter the inner projectile liquid chamber (1-3-5) again. A large amount of impact energy is dissipated through the dual energy absorption of the expansion of high-pressure nitrogen and the turbulence of the viscoelastic gel, thereby achieving the purpose of deceleration and reducing the probability of accidental serious injury.

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