Composite multifunctional spherical kinetic energy bomb

Through multi-layer spherical structure and gradient energy absorption design, high-pressure nitrogen coordinated blasting drive and cavity separation isolation technology, the contradiction between functional singularity and safety in the existing riot-proof munitions technology is solved, and the safety and multi-effect coordination of kinetic energy strikes are achieved, efficient directional release of chemical substances and independent coordination of multifunctional media is achieved.

CN119845099APending Publication Date: 2025-04-18ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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Patent Information

Application Number
CN202510315262.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-04-18

AI Technical Summary

Technical Problem

The existing anti-riot ammunition technology has a contradiction between functional unity and safety, making it difficult to effectively control kinetic energy damage and achieve multi-effect coordination, the chemical substance release efficiency is low, and the energy absorption and directional release mechanisms are not optimized for the design of the elastomer structure.

Method used

The multi-layer spherical structure and gradient energy absorption design are adopted to achieve gradient absorption and buffering of impact energy through the composite structure of polytetrafluoroethylene and polyurethane foam material doped with silica nanoparticles; the coordinated blasting drive of high-pressure nitrogen is used to achieve efficient directional release of chemical substances through directional micro pores; the design of separate cavity isolation and cross partitions is adopted to ensure the independent coordination of multifunctional media.

Benefits of technology

The safety and multi-effect coordination of kinetic energy strikes are achieved, efficient directional release of chemical substances, and independent coordination of multifunctional media have been achieved, which has significantly improved the functional flexibility and safety of ammunition.

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Abstract

The invention discloses a composite multifunctional spherical kinetic energy bomb. The kinetic energy bomb comprises a projectile assembly and a launching assembly. The projectile assembly is of a multi-layer spherical structure, the outer layer is composed of a polytetrafluoroethylene surface layer and a polyurethane foam middle layer doped with silicon dioxide nanoparticles, and directional micro air holes are formed in the surface of the projectile assembly. The middle interlayer is filled with fragile high-pressure balls containing 1.5 MPa compressed nitrogen; the inner core is divided into four cavities by radial and axial partition plates, the four cavities are alternately filled with OC stimulation powder and fluorescent dyeing powder, the emission assembly comprises a cartridge case element and emission charge, the emission charge is ignited through primer to generate fuel gas, a push disc is pushed to eject projectiles, and when the projectiles impact a target, the surface layer and the middle layer absorb impact energy and crush a high-pressure ball to release nitrogen, so that the target is shot. Detonation deterrence is achieved through blasting sound, high-pressure nitrogen drives powder to be sprayed at a high speed from air holes, and multiple non-fatal effects such as kinetic energy striking, bolster deterrence, stimulation and dispersion and dyeing marking functions are synchronously achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of riot control ammunition, in particular to a composite multifunctional spherical kinetic energy bullet. Background Art

[0002] The current riot control ammunition technology is mainly divided into two categories: kinetic strike type and non-lethal chemical type, but there are still significant defects. Traditional kinetic bullets (such as rubber bullets and bean bag bullets) rely on physical impact force to achieve subjugation, but the impact energy is difficult to control accurately, which can easily cause soft tissue damage to the target and even fatal risks; while chemical bullets (such as tear gas and dye bullets) can reduce physical damage, but their functions are single and it is difficult to simultaneously achieve multiple needs such as dispersal, marking and deterrence. In addition, existing composite ammunition often faces problems of structural redundancy and insufficient reliability: for example, tear gas / dye composite bullets mostly use simple mixed loading, which leads to uneven diffusion of chemical substances and limited range of action; some designs try to integrate high-pressure gas drive, but because the rigidity of the projectile material is too high, the buffering is insufficient during impact, and the energy release is easy to be premature or delayed, affecting functional synergy.

[0003] The core shortcomings of existing technologies are: 1) the contradiction between single function and safety, and the lack of a non-lethal solution that can effectively control kinetic damage and achieve multi-effect synergy; 2) the release efficiency of chemical substances is low, relying on passive diffusion, and it is difficult to quickly cover the target area; 3) the projectile structure design does not optimize the energy absorption and directional release mechanism, resulting in uncontrollable function triggering timing and intensity.

[0004] In response to the above problems, the improvement direction should focus on: realizing gradient absorption and directional conversion of impact energy through multi-layer material and cavity structure design; utilizing the instantaneous release mechanism of high-pressure gas to enhance the initial velocity and coverage uniformity of chemical spraying; at the same time, using chamber loading technology to isolate different functional media to avoid chemical reactions during storage and ensure controllable action sequence. Summary of the invention

[0005] The purpose of the present invention is to provide a composite multifunctional spherical kinetic energy projectile to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a composite multifunctional spherical kinetic energy projectile, comprising a projectile assembly and a launching assembly, characterized in that: The projectile assembly is a multi-layer spherical structure wrapped with an inner core, and the projectile assembly includes a projectile skin layer, a projectile middle layer, a projectile interlayer, a projectile inner core, a sealing pad and a push plate. The projectile skin layer, the projectile middle layer, the projectile interlayer and the projectile inner core are concentrically arranged, and the projectile skin layer is the outermost layer of the projectile assembly. The projectile skin layer is made of polytetrafluoroethylene material, and the surface of the projectile skin layer is laser engraved with micron-level grooves. The inner wall surface of the projectile skin layer wraps the projectile middle layer, and the projectile middle layer is made of polyurethane foam material. The polyurethane foam material used to make the projectile middle layer is doped with silicon dioxide nanoparticles to improve its strength-density ratio. The projectile skin layer and the projectile middle layer are densely provided with directional micro-pores penetrating the wall surface. The cavity structure between the projectile middle layer and the projectile inner core is the projectile interlayer, and the projectile interlayer is filled with fragile high-pressure balls. The fragile high-pressure balls are filled with Filled with compressed nitrogen, the storage pressure of the compressed nitrogen inside the fragile high-pressure ball is 1.5MPa, the inner core of the projectile is at the center of the projectile assembly, the inner core of the projectile is made of fragile material, the inner core of the projectile includes radial partitions, axial partitions, a first load cavity, a second load cavity, a third load cavity, a fourth load cavity and an inner core ball wall, the radial partitions and the axial partitions are arranged crosswise, the radial partitions, the axial partitions and the inner core ball wall divide the first load cavity, the second load cavity, the third load cavity and the fourth load cavity into four chambers, the first load cavity and the third load cavity are filled with OC stimulation powder, the second load cavity and the fourth load cavity are filled with fluorescent dye powder, the upper side of the projectile epidermis abuts against the sealing pad, the lower side of the projectile epidermis abuts against the push plate, the push plate is cylindrical, the push plate is made of high temperature resistant plastic, and a push plate clamp is protrudingly provided at the center of the side wall of the push plate; The projectile assembly is loaded inside the launching assembly, and the launching assembly includes a shell component and a propellant charge. The shell component is cylindrical and made of stainless steel. The shell component includes a cartridge, a cartridge mouth, a cartridge bottom edge, a cartridge support ring, a cartridge concave ring, a primer hole, a high-pressure chamber, a fire transfer hole and a low-pressure chamber. The cartridge is a cup-shaped structure with an upper opening and a lower closed end. The opening at the upper end of the cartridge is the cartridge mouth. A sealing pad is clamped on the cartridge mouth. The contact surface between the cartridge mouth and the sealing pad is fixed with 814 glue to achieve sealing. The protruding side wall surface of the lower end of the cartridge is provided with a cartridge bottom edge, and a cartridge support ring is protrudingly provided on the inner wall surface of the middle part of the cartridge. The cartridge support ring is an annular structure, and the upper side of the cartridge support ring and the inner wall of the cartridge A cartridge concave ring is provided, and after the push plate clamping ring is clamped into the cartridge concave ring, the edge of the push plate abuts against the upper side of the cartridge support ring, and hot melt adhesive is used to seal the contact surfaces between the push plate and the cartridge concave ring and the cartridge support ring. A cylindrical primer hole is provided at the axial center of the bottom end face of the cartridge, and a cylindrical high-pressure chamber is integrated inside the cartridge and on the upper side of the primer hole. A cylindrical fire transfer hole is provided at the axial center of the upper end face of the high-pressure chamber, and the fire transfer hole is sealed by a brass diaphragm. Propellant charge is loaded inside the cartridge case element, and the propellant charge includes a primer and propellant powder. The primer is a mechanical impact primer, and the primer is riveted inside the primer hole. The propellant powder is loaded inside the high-pressure chamber. The propellant powder is bulk smokeless powder, and the cavity formed by the inner side of the cartridge, the outer side of the high-pressure chamber and the lower side of the push plate is the low-pressure chamber.

[0007] Preferably, the primer firing pin impacts and ignites the propellant, and the combustion of the propellant generates combustion gas that breaks through the brass diaphragm that seals the fire transfer hole, and the combustion gas of the propellant enters the low-pressure chamber from the fire transfer hole, and the combustion gas of the propellant burns the hot melt adhesive of the sealing push plate, the cartridge concave ring and the cartridge support ring, and the push plate pushes the projectile assembly to break through the sealing gasket. After the projectile assembly hits the target, a kinetic energy strike on the living target is achieved, and the projectile skin layer and the projectile middle layer are quickly compressed to absorb part of the impact energy, crushing the high-pressure ball in the projectile interlayer, and then crushing the projectile core, and the high-pressure nitrogen stored in the high-pressure ball is quickly released to make a blasting sound, and the high-pressure nitrogen pushes the OC stimulation powder and the fluorescent dyeing powder in the projectile core to be sprayed at high speed from the directional micro-pores that penetrate the projectile skin layer and the projectile middle layer, so as to achieve stimulation, dispersal and dyeing marking of the living target.

[0008] Compared with the prior art, the present invention has the following advantages: (1) The present invention adopts a multi-layer spherical structure and a gradient energy absorption design to improve the safety of kinetic strikes. Existing kinetic bullets mostly use a single hard material (such as rubber or plastic), which concentrates the impact energy transfer and easily causes uncontrollable damage. The present invention achieves gradient absorption and buffering of impact energy through a multi-layer composite structure of the projectile skin layer and the projectile middle layer. Specifically, the projectile skin layer is made of polytetrafluoroethylene material, and its surface is laser-engraved with micron-level grooves to significantly reduce the surface friction coefficient and reduce the shear stress when contacting the target; the projectile middle layer is made of polyurethane foam doped with silica nanoparticles, which improves the strength-density ratio on the basis of lightweight, and combines dense directional micro-pores to form a porous energy absorption network. When impacting the target, the outer layer of material is compressed step by step, and the pore structure further consumes energy through air dissipation, ultimately controlling the impact energy within a non-lethal range while avoiding premature breakage of the inner core. This design not only ensures the subduing effect of kinetic strikes, but also greatly reduces the risk of injury; (2) The present invention uses high-pressure nitrogen to coordinate blasting drive, which realizes efficient and directional release of chemical substances. Traditional chemical bombs rely on passive diffusion or simple gunpowder drive, and their coverage range and action speed are limited. The present invention innovatively introduces a fragile high-pressure ball in the interlayer of the projectile, which stores 1.5MPa compressed nitrogen. At the moment of impact, the compression force of the projectile skin layer and the projectile middle layer is transmitted to the interlayer, the high-pressure ball is squeezed and ruptured, and the nitrogen is instantly released to form a blasting effect. This high-pressure gas forms a high-speed airflow through directional micro-pores, which drives the OC stimulating powder and fluorescent dyeing powder packaged in the inner core of the projectile to be directional and sprayed, with an initial velocity of 20-30m / s and a coverage radius expanded to 5-8 meters. Compared with traditional gunpowder drive, nitrogen has no combustion residue, and the release is cleaner and more controllable. In addition, the directional design of the pores can accurately cover the target area and avoid ineffective diffusion; (3) The present invention adopts chamber isolation and cross partition design to ensure the independent coordination of multifunctional media. Existing composite ammunition often fails to function or is contaminated due to medium mixing. The present invention divides the inner core into four independent chambers, namely the first load chamber and the second load chamber, by cross-laying the radial partitions and axial partitions of the inner core of the projectile, and fills the OC stimulating powder and the fluorescent dye powder respectively. The partition adopts a thin-walled fragile structure, which breaks synchronously under the impact of high-pressure nitrogen, ensuring that the two media are sprayed at the same time but spatially isolated to avoid cross contamination. At the same time, the symmetrical distribution of the chambers makes the spraying direction radial, and cooperates with the directional layout of the air holes to form a three-dimensional coverage effect. This design not only maintains the independence of the multifunctional medium, but also realizes the synchronous effects of dispersal and marking through structural coordination, significantly improving tactical flexibility; (4) The present invention adopts a high- and low-pressure launching system to optimize ballistic stability and safety. The centralized loading of traditional propellants can easily lead to a sudden increase in chamber pressure, affecting shooting accuracy. The launching assembly of the present invention adopts a dual-chamber design of a high-pressure chamber and a low-pressure chamber: the high-pressure chamber is filled with bulk smokeless gunpowder. After combustion, the gas pressure breaks through the brass diaphragm of the fire transfer hole, enters the low-pressure chamber for expansion and buffering, and then acts evenly on the push plate. The push plate ensures balanced force through the clamping structure of the push plate clamping ring and the concave ring of the cartridge case, pushing the projectile to be ejected smoothly. This pressure progression mechanism reduces the peak chamber pressure by 30%-40%, reduces the fluctuation of the initial velocity of the projectile, and at the same time avoids gas leakage through hot melt adhesive sealing, significantly improving the launch reliability and user safety; (5) The present invention enhances environmental adaptability and durability through material and process innovation. Existing ammunition is easily affected by temperature and humidity, resulting in performance degradation. The present invention is comprehensively optimized in terms of material selection and process treatment: the polytetrafluoroethylene of the projectile surface layer has both weather resistance and low adhesion properties, and the laser engraved grooves can reduce rainwater adhesion and ensure smooth pores in humid environments; the nano-silicon dioxide doping technology of the projectile middle layer enables the foam material to maintain stable compressive strength in the range of -20°C to 50°C; the push plate is made of high-temperature resistant plastic, combined with the stainless steel support of the cartridge ring, to withstand the impact of high-temperature gas at the moment of launch; the cartridge mouth and the sealing gasket are sealed with 814 glue, and its aging resistance ensures that it can still be fired reliably after long-term storage. The above innovations enable the present invention to have a longer service life and more stable functional performance in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a 3 / 4 stereoscopic schematic diagram of the projectile assembly 1 of the present invention; Figure 4 It is a three-dimensional schematic diagram of the push plate 1-6 in the present invention; Figure 5 It is a schematic diagram of the structure of the transmitting component 2 in the present invention.

[0010] In the figure: 1, projectile assembly, 1-1, projectile skin layer, 1-2, projectile middle layer, 1-3, projectile interlayer, 1-3-1, high-pressure ball, 1-4, projectile core, 1-4-1, radial partition, 1-4-2, axial partition, 1-4-3, first load cavity, 1-4-4, second load cavity, 1-4-5, third load cavity, 1-4-6, fourth load cavity, 1-4-7, inner core ball wall, 1-5, sealing gasket, 1-6 , push plate, 1-6-1, push plate retaining ring, 2, firing assembly, 2-1, cartridge case component, 2-1-1, cartridge cylinder, 2-1-2, cartridge cylinder mouth, 2-1-3, cartridge cylinder bottom edge, 2-1-4, cartridge cylinder support ring, 2-1-5, cartridge cylinder recessed ring, 2-1-6, primer hole, 2-1-7, high pressure chamber, 2-1-8, flash hole, 2-1-9, low pressure chamber, 2-2, propellant charge, 2-2-1, primer, 2-2-2, propellant. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] See also Figure 1-5 The present invention provides a technical solution: a composite multifunctional spherical kinetic energy projectile, comprising a projectile component 1 and a launching component 2.

[0013] Combination Figure 2 , Figure 3 and Figure 4The projectile assembly 1 is a multi-layer spherical structure wrapped with an inner core. The projectile assembly 1 includes a projectile skin layer 1-1, a projectile middle layer 1-2, a projectile interlayer 1-3, a projectile inner core 1-4, a sealing pad 1-5 and a push plate 1-6. The projectile skin layer 1-1, the projectile middle layer 1-2, the projectile interlayer 1-3 and the projectile inner core 1-4 are concentrically arranged. The projectile skin layer 1-1 is the outermost layer of the projectile assembly 1. The projectile skin layer 1-1 is made of polytetrafluoroethylene material. The surface of the projectile skin layer 1-1 is laser engraved with micron-level grooves. The inner wall surface of the projectile skin layer 1-1 wraps the projectile inner core. The intermediate layer 1-2 of the bullet is made of polyurethane foam material, and the polyurethane foam material used to make the intermediate layer 1-2 of the bullet is doped with silicon dioxide nanoparticles to improve its strength-density ratio. The bullet skin layer 1-1 and the bullet intermediate layer 1-2 are densely provided with directional micro-pores penetrating the wall surface. The cavity structure between the bullet intermediate layer 1-2 and the bullet inner core 1-4 is the bullet interlayer 1-3. The bullet interlayer 1-3 is filled with a fragile high-pressure ball 1-3-1, and the fragile high-pressure ball 1-3-1 is filled with compressed nitrogen. The storage pressure of the compressed nitrogen in the fragile high-pressure ball 1-3-1 is The force is 1.5MPa, the inner core 1-4 of the projectile is at the center of the projectile assembly 1, the inner core 1-4 of the projectile is made of fragile materials, the inner core 1-4 of the projectile includes a radial partition 1-4-1, an axial partition 1-4-2, a first load cavity 1-4-3, a second load cavity 1-4-4, a third load cavity 1-4-5, a fourth load cavity 1-4-6 and an inner core spherical wall 1-4-7, the radial partition 1-4-1 and the axial partition 1-4-2 are arranged crosswise, and the radial partition 1-4-1, the axial partition 1-4-2 and the inner core spherical wall 1-4-7 divide the first load cavity 1-4-3 , the second load chamber 1-4-4, the third load chamber 1-4-5 and the fourth load chamber 1-4-6. The first load chamber 1-4-3 and the third load chamber 1-4-5 are filled with OC stimulating powder, and the second load chamber 1-4-4 and the fourth load chamber 1-4-6 are filled with fluorescent dyeing powder. The upper side of the projectile skin layer 1-1 abuts against the sealing pad 1-5, and the lower side of the projectile skin layer 1-1 abuts against the push plate 1-6. The push plate 1-6 is cylindrical and made of high temperature resistant plastic. A push plate clamping ring 1-6-1 is protrudingly provided at the center of the side wall of the push plate 1-6; Combination Figure 2 and Figure 5The projectile assembly 1 is loaded inside the launching assembly 2, and the launching assembly 2 includes a shell component 2-1 and a propellant charge 2-2. The shell component 2-1 is cylindrical and made of stainless steel. The shell component 2-1 includes a cartridge 2-1-1, a cartridge mouth 2-1-2, a cartridge bottom edge 2-1-3, a cartridge support ring 2-1-4, a cartridge concave ring 2-1-5, a primer hole 2-1-6, a high pressure chamber 2-1-7, a fire transfer hole 2-1-8 and a low pressure chamber 2-1-9. The cartridge 2-1-1 is a cup with an upper end open and a lower end closed. The opening at the upper end of the cartridge 2-1-1 is the cartridge mouth 2-1-2, the cartridge mouth 2-1-2 is clamped with a sealing gasket 1-5, and the contact surface between the cartridge mouth 2-1-2 and the sealing gasket 1-5 is fixed with 814 glue to achieve sealing, the protruding side wall surface of the lower end of the cartridge 2-1-1 is provided with a cartridge bottom edge 2-1-3, the inner wall surface of the middle part of the cartridge 2-1-1 is protrudingly provided with a cartridge support ring 2-1-4, the cartridge support ring 2-1-4 is annular, and a cartridge concave ring is provided on the upper side of the cartridge support ring 2-1-4 and the inner wall of the cartridge 2-1-1 2-1-5, after the push plate clamping ring 1-6-1 is inserted into the cartridge concave ring 2-1-5, the edge of the push plate 1-6 abuts against the upper side of the cartridge support ring 2-1-4, and the contact surfaces between the push plate 1-6 and the cartridge concave ring 2-1-5 and the cartridge support ring 2-1-4 are sealed with hot melt adhesive, a cylindrical primer hole 2-1-6 is provided at the axis center of the bottom end face of the cartridge 2-1-1, a cylindrical high-pressure chamber 2-1-7 is integrated inside the cartridge 2-1-1 and on the upper side of the primer hole 2-1-6, a cylindrical fire transfer hole 2-1-8 is provided at the axis center of the upper end face of the high-pressure chamber 2-1-7, The fire transfer hole 2-1-8 is sealed by a brass diaphragm, and the shell element 2-1 is filled with a propellant charge 2-2. The propellant charge 2-2 includes a primer 2-2-1 and propellant 2-2-2. The primer 2-2-1 is a mechanical impact primer. The primer 2-2-1 is riveted inside the primer hole 2-1-6. The propellant 2-2-2 is loaded inside the high-pressure chamber 2-1-7. The propellant 2-2-2 is bulk smokeless powder. The cavity formed by the inner side of the cartridge 2-1-1, the outer side of the high-pressure chamber 2-1-7 and the lower side of the push plate 1-6 is the low-pressure chamber 2-1-9.

[0014] In this embodiment, the primer 2-2-1 is ignited by the impact of the firing pin to ignite the propellant 2-2-2. The combustion of the propellant 2-2-2 generates gas that breaks through the brass diaphragm that seals the fire transfer hole 2-1-8. The gas generated by the combustion of the propellant 2-2-2 enters the low-pressure chamber 2-1-9 from the fire transfer hole 2-1-8. The gas generated by the combustion of the propellant 2-2-2 burns the hot melt adhesive of the sealing push plate 1-6, the cartridge concave ring 2-1-5 and the cartridge support ring 2-1-4. The push plate 1-6 pushes the projectile assembly 1 to break through the sealing pad 1-5, and the projectile assembly 1 hits the target. Afterwards, a kinetic strike on a living target is achieved, the projectile skin layer 1-1 and the projectile middle layer 1-2 are quickly compressed, absorbing part of the impact energy, crushing the high-pressure ball 1-3-1 in the projectile interlayer 1-3, and then crushing the projectile core 1-4, the high-pressure nitrogen stored in the high-pressure ball 1-3-1 is quickly released, making a blasting sound, and the high-pressure nitrogen pushes the OC stimulating powder and the fluorescent dyeing powder in the projectile core 1-4, and sprays them at high speed from the directional micro air holes penetrating the projectile skin layer 1-1 and the projectile middle layer 1-2, achieving the stimulation, dispersal and dyeing marking of the living target.

[0015] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite multifunctional spherical kinetic energy projectile, comprising a projectile assembly (1) and a launching assembly (2), characterized in that: The projectile assembly (1) is in the form of a multi-layer spherical structure wrapping an inner core. The projectile assembly (1) comprises a projectile skin layer (1-1), a projectile middle layer (1-2), a projectile interlayer (1-3), a projectile inner core (1-4), a sealing pad (1-5) and a push plate (1-6). The projectile skin layer (1-1), the projectile middle layer (1-2), the projectile interlayer (1-3) and the projectile inner core (1-4) are arranged concentrically. The projectile skin layer (1-1) is located at the outermost layer of the projectile assembly (1). The projectile skin layer (1-1) is made of polytetrafluoroethylene material. Micron-level grooves are engraved on the surface of the projectile skin layer (1-1) by laser. The inner wall surface of the projectile skin layer (1-1) wraps the projectile. The projectile intermediate layer (1-2) is made of polyurethane foam material, the polyurethane foam material used to make the projectile intermediate layer (1-2) is doped with silicon dioxide nanoparticles to improve its strength-to-density ratio, the projectile skin layer (1-1) and the projectile intermediate layer (1-2) are densely provided with directional micro-pores penetrating the wall surface, the cavity structure between the projectile intermediate layer (1-2) and the projectile inner core (1-4) is the projectile interlayer (1-3), the projectile interlayer (1-3) is filled with a fragile high-pressure ball (1-3-1), the fragile high-pressure ball (1-3-1) is filled with compressed nitrogen, and the storage pressure of the compressed nitrogen inside the fragile high-pressure ball (1-3-1) is 1. 5MPa, the projectile inner core (1-4) is located at the center of the projectile assembly (1), the projectile inner core (1-4) is made of fragile material, the projectile inner core (1-4) comprises a radial partition (1-4-1), an axial partition (1-4-2), a first load cavity (1-4-3), a second load cavity (1-4-4), a third load cavity (1-4-5), a fourth load cavity (1-4-6) and an inner core spherical wall (1-4-7), the radial partition (1-4-1) and the axial partition (1-4-2) are arranged in a cross-shaped manner, and the radial partition (1-4-1), the axial partition (1-4-2) and the inner core spherical wall (1-4-7) divide the first load cavity (1-4-3) , a second load chamber (1-4-4), a third load chamber (1-4-5) and a fourth load chamber (1-4-6); the first load chamber (1-4-3) and the third load chamber (1-4-5) are filled with OC stimulating powder; the second load chamber (1-4-4) and the fourth load chamber (1-4-6) are filled with fluorescent dye powder; the upper side of the projectile skin layer (1-1) abuts against the sealing pad (1-5); the lower side of the projectile skin layer (1-1) abuts against the push plate (1-6); the push plate (1-6) is cylindrical; the push plate (1-6) is made of high temperature resistant plastic; a push plate clamping ring (1-6-1) is protrudingly provided at the center of the side wall of the push plate (1-6); The projectile assembly (1) is loaded inside the firing assembly (2). The firing assembly (2) comprises a cartridge case component (2-1) and a firing charge (2-2). The cartridge case component (2-1) is cylindrical and is made of stainless steel. The cartridge case component (2-1) comprises a cartridge barrel (2-1-1), a cartridge barrel mouth (2-1-2), a cartridge barrel bottom edge (2-1-3), a cartridge barrel support ring (2-1-4), a cartridge barrel concave ring (2-1-5), a primer hole (2-1-6), a high pressure chamber (2-1-7), a fire transfer hole (2-1-8) and a low pressure chamber (2-1-9). The cartridge barrel (2-1-1) is open at the top and closed at the bottom. The invention discloses a cup-shaped structure with a closed end, wherein the opening at the upper end of the cartridge (2-1-1) is the cartridge opening (2-1-2), the cartridge opening (2-1-2) is clamped with a sealing pad (1-5), the contact surface between the cartridge opening (2-1-2) and the sealing pad (1-5) is fixed by gluing with 814 glue to achieve sealing, the protruding side wall surface at the lower end of the cartridge (2-1-1) is provided with a cartridge bottom edge (2-1-3), the inner wall surface of the middle part of the cartridge (2-1-1) is protrudingly provided with a cartridge support ring (2-1-4), the cartridge support ring (2-1-4) is in a circular ring structure, and a cartridge concave ring is provided on the upper side of the cartridge support ring (2-1-4) and the inner wall of the cartridge (2-1-1) (2-1-5), after the push plate clamping ring (1-6-1) is inserted into the cartridge concave ring (2-1-5), the edge of the push plate (1-6) abuts against the upper side of the cartridge support ring (2-1-4), and the contact surfaces between the push plate (1-6) and the cartridge concave ring (2-1-5) and the cartridge support ring (2-1-4) are sealed with hot melt adhesive, a cylindrical primer hole (2-1-6) is provided at the axis center of the bottom end surface of the cartridge (2-1-1), a cylindrical high-pressure chamber (2-1-7) is integrally provided inside the cartridge (2-1-1) and on the upper side of the primer hole (2-1-6), a cylindrical fire transfer hole (2-1-8) is provided at the axis center of the upper end surface of the high-pressure chamber (2-1-7), and the fire transfer hole (2-1-8) is provided at the axis center of the upper end surface of the high-pressure chamber (2-1-7). The firing hole (2-1-8) is sealed by a brass diaphragm. The shell component (2-1) is filled with a propellant charge (2-2). The propellant charge (2-2) includes a primer (2-2-1) and propellant charge (2-2-2). The primer (2-2-1) is a mechanical impact primer. The primer (2-2-1) is riveted inside the primer hole (2-1-6). The propellant charge (2-2-2) is filled inside the high-pressure chamber (2-1-7). The propellant charge (2-2-2) is bulk smokeless powder. The cavity formed by the inner side of the cartridge barrel (2-1-1), the outer side of the high-pressure chamber (2-1-7) and the lower side of the push plate (1-6) is the low-pressure chamber (2-1-9).

2. A composite multifunctional spherical kinetic energy projectile according to claim 1, characterized in that: The primer (2-2-1) is ignited by the impact of the firing pin and ignites the propellant (2-2-2). The propellant (2-2-2) burns to generate gas that breaks through the brass diaphragm that seals the fire transfer hole (2-1-8). The gas generated by the combustion of the propellant (2-2-2) enters the low-pressure chamber (2-1-9) from the fire transfer hole (2-1-8). The gas generated by the combustion of the propellant (2-2-2) burns the hot melt adhesive of the sealing push plate (1-6), the cartridge concave ring (2-1-5) and the cartridge support ring (2-1-4). The push plate (1-6) pushes the projectile assembly (1) to break through the sealing pad (1-5). The projectile assembly (1) hits After hitting the target, a kinetic strike on the living target is achieved, the projectile surface layer (1-1) and the projectile middle layer (1-2) are quickly compressed, absorb part of the impact energy, crush the high-pressure ball (1-3-1) in the projectile interlayer (1-3), and then crush the projectile core (1-4), the high-pressure nitrogen stored in the high-pressure ball (1-3-1) is quickly released, and a bursting sound is emitted, and the high-pressure nitrogen pushes the OC stimulating powder and the fluorescent dyeing powder in the projectile core (1-4) to be sprayed at high speed from the directional micro air holes penetrating the projectile surface layer (1-1) and the projectile middle layer (1-2), thereby achieving stimulation, dispersal and dyeing marking of the living target.