A riot gun using 38mm stun riot ammunition

Abstract

This utility model discloses a 38mm stun-type riot control bullet for riot guns, relating to the field of riot control ammunition technology. The utility model includes a launch tube assembly, the inner cavity of which houses a projectile assembly. The projectile assembly includes a projectile shell disposed inside the launch tube assembly. An end cap is fixedly connected to the bottom of the projectile shell, and a tail fin is fixedly connected to the bottom of the end cap. A flame delay detonator is fixedly connected to the bottom of the inner cavity of the end cap. This utility model reduces air resistance during flight by designing the projectile shell head as a spherical structure with a curvature radius of 15-20mm. Simultaneously, tail fins evenly distributed circumferentially at the bottom of the end cap form an aerodynamic layout similar to a stabilizing wing. The spherical head reduces wind resistance interference, and the tail fins balance attitude shift by generating aerodynamic lift. The combined effect of these two elements makes the projectile's flight attitude more stable, solving the accuracy problem caused by structural design defects in existing products.

Description

Technical Field

[0001] This utility model relates to the field of riot control ammunition technology, and in particular to a 38mm stun-type riot control ammunition for riot guns. Background Technology

[0002] To address the deterrent needs in riot control operations, 38mm stun grenades are widely used in existing technologies, with the Type 2010 38mm police stun grenade being the most representative. This type of riot control grenade detonates the stun agent upon launch, generating a sound pressure peak of 150-170 dB and a sound energy density of 1.5 × 10⁻⁶ dB. 6 ~3.5×10 6 The instantaneous flash intensity of a CD uses sound and intense light to deter targets. Its basic structure includes components such as a launch tube, primer, propellant cartridge, projectile casing, stun agent, and delay detonator. When launched, the primer ignites the propellant, propelling the projectile out of the launch tube, while the delay detonator ignites, detonating the stun agent after a delay of 3 to 4 seconds to produce the effect.

[0003] Existing projectile casings mostly have a flat or blunt nose design, resulting in high aerodynamic drag. Furthermore, they lack a stabilizing structure at the tail. During flight, factors such as wind and air turbulence can cause the projectile to deviate from its intended trajectory, leading to a significant deviation between the actual impact point and the aiming point. The core reason for this problem is the unreasonable aerodynamic layout of the projectile and the lack of an effective stabilizing structure, which makes it impossible to balance external forces during flight. At the same time, the large gap between the stun agent and the projectile casing allows for easy leakage of explosive energy, further weakening the effect. Utility Model Content

[0004] In response to the problems of the currently used 38mm stun grenades, such as unstable flight attitude due to projectile structure issues, large impact point dispersion, low sound and light intensity when the stun agent is activated, and poor deterrent effect, this utility model provides a 38mm stun-type riot control grenade for riot guns.

[0005] To solve the above problems, the technical solution adopted by this utility model is a 38mm stun-type riot control bullet for riot guns, including a launch tube assembly. The inner cavity of the launch tube assembly is provided with a projectile assembly, which includes a projectile shell disposed inside the launch tube assembly. An end cap is fixedly connected to the bottom of the projectile shell, and a tail fin is fixedly connected to the bottom of the end cap. A flame delay detonator is fixedly connected to the bottom of the inner cavity of the end cap. An inner propellant box is fixedly connected to the inner wall of the projectile shell, and the inner propellant box is filled with a stun agent. A box lid is fixedly connected to the top of the inner propellant box. The projectile shell is made of high-strength and lightweight engineering plastic material, which can not only withstand the instantaneous high pressure during firing but also reduce the overall weight, thus improving the initial velocity and range. The connection between the end cap and the bottom of the projectile shell uses high-precision threaded fitting and sealant filling to ensure a tight connection and waterproof and dustproof protection, preventing external environmental factors from affecting the performance of internal components such as the flame delay detonator. The tail fins are aerodynamically optimized, streamlined, and smooth, effectively reducing air resistance and enhancing flight stability during flight, ensuring the projectile accurately reaches the target area. A protective sleeve made of flexible yet high-strength rubber material is added to the exterior of the flame delay detonator, buffering the intense vibrations at the moment of launch and preventing damage to the internal structure of the detonator, thus ensuring the accuracy of the delay time. The inner cartridge uses a double-layer design; the inner layer is made of high-pressure resistant metal to ensure the safety of the stun agent during storage and launch, while the outer layer is wrapped with shock-absorbing material to reduce the impact of external impacts on the inner cartridge and stun agent. The high-strength, lightweight projectile casing and optimized tail fins improve projectile flight stability and range accuracy, enabling better engagement with long-range targets. The sealing and protective design of the end caps, inner cartridge, and lid ensures the stable performance of internal components and extends the storage life of the riot control projectile. Improvements to the launch tube assembly enhance launch efficiency and reliability, and facilitate operator use.

[0006] Preferably, the launch tube assembly includes a tube body that is fitted onto the surface of the projectile shell. A primer is fixedly connected to the bottom of the tube body, and a propellant cartridge is fixedly connected to the bottom of the inner cavity of the tube body. In this preferred embodiment, the tube body is fitted onto the surface of the projectile shell. This structural design allows the energy generated by the combustion of the propellant to be concentrated on the projectile assembly, ensuring that the projectile obtains sufficient initial velocity for long-range launch. The cooperation between the primer and the propellant cartridge ensures the reliability of the launch process and provides a power basis for the stable launch of the projectile.

[0007] Preferably, a pressure cap is fixedly connected to the top of the cylinder, and the bottom of the pressure cap is embedded in the top of the projectile shell. In this preferred embodiment, the bottom of the pressure cap is embedded in the top of the projectile shell, and the bottom of the pressure cap has an arc-shaped structure that fits the spherical surface of the projectile shell. This can fix the position of the projectile assembly inside the launch tube, preventing the projectile from deviating from the preset position due to shaking before launch. At the same time, it can reduce the leakage of gunpowder gases during launch, ensure the effective use of energy, and improve launch efficiency.

[0008] Preferably, the head of the projectile casing is configured as a spherical structure with a radius of curvature of 15-20 mm. In this preferred embodiment, the spherical shape can optimize the aerodynamic performance of the projectile during flight, reduce the impact of air resistance on the projectile, make the projectile flight more stable, and help improve the projectile's range and impact accuracy.

[0009] Preferably, the number of tail fins is 4-6, and the tail fins are evenly distributed circumferentially along the end cap. In this preferred embodiment, the evenly distributed tail fins can provide symmetrical aerodynamic forces during projectile flight, balance the lateral forces on the projectile, effectively suppress attitude deviation during projectile flight, enhance flight stability, and reduce the impact point dispersion range.

[0010] Preferably, the delay time of the flame delay detonator is 3-4 seconds. In this preferred embodiment, this delay time design ensures that the projectile has sufficient time to fly to the target area before taking effect, avoiding premature detonation before reaching the target, ensuring that the deterrent effect is applied to the target area, and improving the effectiveness and safety of its use.

[0011] Preferably, the end of the tail fin furthest from the end cap is tilted outward at an angle of 5°-8°. In this preferred embodiment, the tilted tail fin can generate a certain amount of lift and stabilizing torque during projectile flight, further optimizing the projectile's aerodynamic characteristics, enhancing its resistance to wind interference, and enabling the projectile to maintain a stable flight trajectory even in complex airflow environments.

[0012] Preferably, the bottom of the propellant cartridge has evenly distributed ignition holes with a diameter of 2-3 mm. In this preferred embodiment, the ignition holes enable the flame generated by the primer to be evenly transferred to the propellant in the propellant cartridge, ensuring the consistency and completeness of the propellant combustion, reducing the fluctuation of the projectile's initial velocity caused by uneven combustion of the propellant, and improving the stability of the firing performance.

[0013] Preferably, the projectile casing is made of engineering plastic, and the cylinder is made of steel. In this preferred embodiment, the engineering plastic material gives the projectile casing good lightweight properties, which is beneficial to improving the projectile's flight performance, while also providing sufficient strength to withstand external forces during flight. The steel cylinder can withstand the high pressure generated by the combustion of the propellant, ensuring the structural strength and safety of the launch tube. The choice of materials for both achieves a match between function and performance.

[0014] Preferably, a buffer gasket is provided between the flame delay detonator and the end cap, and the buffer gasket is made of silicone rubber. In this preferred embodiment, the silicone rubber buffer gasket between the flame delay detonator and the end cap has good elasticity and buffering performance, which can absorb the vibration generated during the firing process, avoid the vibration from affecting the internal structure of the flame delay detonator, ensure the accuracy of the delay time, and ensure that the detonator functions reliably at the preset time.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are as follows: This solution provides a 38mm stun riot control bullet for riot guns. By designing the head of the bullet casing as a spherical structure with a curvature radius of 15-20mm, air resistance during flight is reduced. At the same time, tail fins are set at the bottom of the end cap, which are evenly distributed circumferentially, forming an aerodynamic layout similar to a stabilizing wing. The spherical head reduces wind resistance interference, and the tail fins balance attitude shift by generating aerodynamic lift. The two work together to make the bullet's flight attitude more stable, solving the problem of insufficient accuracy caused by structural design defects in existing products. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model.

[0018] Figure 2 This is a schematic diagram of the projectile assembly in Embodiment 1 of this utility model.

[0019] Figure 3 This is a schematic diagram of a half-sectional structure in Embodiment 1 of this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of Embodiment 1 of this utility model.

[0021] Figure 5 This is a bottom view of the structure in Embodiment 1 of this utility model.

[0022] In the attached diagram: 1. Launch tube assembly, 11. Tube body, 12. Primer, 13. Propellant box, 2. Projectile assembly, 21. Projectile casing, 22. End cap, 23. Tail fin, 24. Flame delay detonator, 25. Inner propellant box, 26. Detonating agent, 27. Box cover, 3. Pressure cap. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] Example 1

[0025] like Figure 1-5 As shown, a 38mm stun riot control bullet for a riot gun includes a launch tube assembly 1. The inner cavity of the launch tube assembly 1 is provided with a projectile assembly 2. The projectile assembly 2 includes a projectile shell 21, which is disposed inside the launch tube assembly 1. An end cap 22 is fixedly connected to the bottom of the projectile shell 21. A tail fin 23 is fixedly connected to the bottom of the end cap 22. A flame delay detonator 24 is fixedly connected to the bottom of the inner cavity of the end cap 22. An inner powder box 25 is fixedly connected to the inner wall of the projectile shell 21. The inner powder box 25 is filled with a stun agent 26. A box cover 27 is fixedly connected to the top of the inner powder box 25.

[0026] The projectile casing 21 is made of high-strength and lightweight engineering plastic, which can withstand the instantaneous high pressure during launch and reduce the overall weight, thus improving the initial velocity and range. The connection between the end cap 22 and the bottom of the projectile casing 21 uses high-precision threaded fitting and sealant filling to ensure a tight connection and waterproof and dustproof performance, preventing external environmental factors from affecting the performance of internal components such as the flame delay detonator 24. The tail fin 23 has been aerodynamically optimized, with a streamlined shape and smooth surface, which can effectively reduce air resistance during flight, enhance flight stability, and ensure that the projectile accurately flies to the target area. The flame delay detonator 24 is equipped with a protective sleeve made of flexible but high-strength rubber material, which can buffer the strong impact at the moment of launch. To prevent damage to the internal structure of the detonator due to vibration and ensure the accuracy of the delay time, the inner cartridge 25 adopts a double-layer structure design. The inner layer is made of high-pressure resistant metal material to ensure the safety of the stun agent 26 during storage and firing. The outer layer is wrapped with shock-absorbing material to reduce the impact of external impacts on the inner cartridge 25 and the stun agent 26. The high-strength and lightweight projectile shell 21 and the optimized tail fins 23 improve the projectile's flight stability and range accuracy, enabling it to better deal with long-range targets. The sealing and protective design of the end cap 22, inner cartridge 25 and cartridge cover 27 ensures the stable performance of internal components and extends the storage life of the riot control projectile. The improvement of the launch tube assembly 1 improves firing efficiency and reliability and facilitates operation by operators.

[0027] The launch tube assembly 1 includes a tube body 11, which is fitted onto the surface of the projectile casing 21. A primer 12 is fixedly connected to the bottom of the tube body 11, and a propellant cartridge 13 is fixedly connected to the bottom of the inner cavity of the tube body 11.

[0028] The cylinder 11 is fitted onto the surface of the projectile casing 21. This structural design allows the energy generated by the combustion of the propellant to be concentrated on the projectile assembly 2, ensuring that the projectile obtains sufficient initial velocity and achieves long-distance launch. The cooperation between the primer 12 and the propellant box 13 ensures the reliability of the launch process and provides a power basis for the stable launch of the projectile.

[0029] The top of the cylinder 11 is fixedly connected to a pressure cap 3, and the bottom of the pressure cap 3 is embedded in the top of the projectile shell 21.

[0030] The bottom of the pressure cap 3 is embedded in the top of the projectile shell 21. The bottom of the pressure cap 3 has an arc-shaped structure that fits the spherical surface of the projectile shell 21. This can fix the position of the projectile assembly 2 in the launch tube, preventing the projectile from deviating from the preset position due to shaking before launch. At the same time, it can reduce the leakage of gunpowder gas during launch, ensure the effective use of energy, and improve launch efficiency.

[0031] The head of the projectile casing 21 is designed as a spherical structure with a radius of curvature of 15-20 mm.

[0032] The spherical shape can optimize the aerodynamic performance of the projectile during flight, reduce the impact of air resistance on the projectile, make the projectile flight more stable, and help improve the projectile's range and impact accuracy.

[0033] The number of tail fins 23 is 4-6, and the tail fins 23 are evenly distributed along the circumference of the end cap 22.

[0034] The evenly distributed tail fins 23 can provide symmetrical aerodynamic forces during projectile flight, balance the lateral forces on the projectile, effectively suppress attitude deviation during projectile flight, enhance flight stability, and reduce the dispersion range of the impact point.

[0035] The delay time of the flame delay detonator 24 is 3s-4s.

[0036] This delay time design ensures that the projectile has enough time to fly to the target area before taking effect, avoiding premature detonation before reaching the target, ensuring that the deterrent effect is effective in the target area, and improving the effectiveness and safety of its use.

[0037] Among them, the end of the tail fin 23 that is away from the end cap 22 is tilted outward at an angle of 5°-8°.

[0038] The inclined tail fin 23 can generate a certain amount of lift and stabilizing torque during the flight of the projectile, further optimizing the aerodynamic characteristics of the projectile, enhancing the projectile's ability to resist wind interference, and enabling the projectile to maintain a stable flight trajectory in complex airflow environments.

[0039] The propellant cartridge 13 has evenly distributed ignition holes at its bottom, with a diameter of 2-3 mm.

[0040] The ignition port enables the flame generated by the primer 12 to be evenly transmitted to the propellant in the propellant box 13, ensuring the consistency and fullness of the propellant combustion, reducing the fluctuation of the projectile's initial velocity caused by uneven propellant combustion, and improving the stability of the firing performance.

[0041] The projectile casing 21 is made of engineering plastic, and the cylinder 11 is made of steel.

[0042] The engineering plastic material gives the projectile casing 21 good lightweight characteristics, which is beneficial to improving the projectile's flight performance, while also having a certain strength to withstand external forces during flight. The steel metal tube 11 can withstand the high pressure generated by the combustion of propellant, ensuring the structural strength and safety of the launch tube. The choice of materials for both achieves a match between function and performance.

[0043] Among them, a buffer gasket is provided between the flame delay detonator 24 and the end cap 22, and the buffer gasket is made of silicone rubber material.

[0044] The silicone rubber buffer pad between the flame delay detonator 24 and the end cap 22 has good elasticity and buffering performance. It can absorb the vibration generated during the firing process, avoid the vibration from affecting the internal structure of the flame delay detonator 24, ensure the accuracy of the delay time, and ensure that the detonator can reliably function at the preset time.

[0045] Working principle: When the riot gun is fired, the primer 12 is ignited and produces a flame. The flame is transmitted to the propellant in the propellant box 13 through the evenly distributed ignition holes at the bottom of the propellant box 13, causing the propellant to burn rapidly. The high-pressure propellant gas generated by the combustion accumulates inside the tube 11. Since the tube 11 is made of steel metal material, it can withstand high pressure and ensure that the energy is concentrated on the projectile assembly 2. Under the push of the high-pressure gas, the projectile assembly 2 overcomes the resistance and flies out of the launch tube, obtaining a sufficient initial velocity.

[0046] After the projectile assembly 2 leaves the launch tube, it enters the flight phase. The spherical structure at the head of the projectile shell 21 optimizes aerodynamic performance and reduces air resistance. The 4-6 tail fins 23 at the bottom of the end cap 22 are evenly distributed circumferentially. Through aerodynamic design, they generate a stabilizing torque, balance lateral forces, and suppress attitude deviation, ensuring that the projectile can maintain a stable trajectory in complex airflow. The projectile shell 21 is made of high-strength engineering plastic to achieve lightweighting. Combined with the wind interference resistance of the tail fins 23, it effectively improves flight stability and landing accuracy.

[0047] During flight, the flame simultaneously ignites the flame delay detonator 24. The rubber protective sleeve outside the detonator and the silicone rubber buffer pad between it and the end cap 22 absorb the violent vibration during launch, ensuring that the delay mechanism is not disturbed. When the projectile reaches the target area, the flame delay detonator 24 detonates the stun agent 26 in the inner explosive box 25, ultimately producing a loud sound and a bright light, achieving effective deterrence of the target area.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A 38mm stun riot control round for a riot gun, comprising a launch tube assembly (1), characterized in that, The inner cavity of the launching tube assembly (1) is provided with a projectile assembly (2). The projectile assembly (2) includes a projectile shell (21), which is disposed inside the launch tube assembly (1). An end cap (22) is fixedly connected to the bottom of the projectile shell (21), and a tail fin (23) is fixedly connected to the bottom of the end cap (22). A flame delay detonator (24) is fixedly connected to the bottom of the inner cavity of the end cap (22). An inner powder box (25) is fixedly connected to the inner wall of the projectile shell (21). The inner powder box (25) is filled with a stun agent (26), and a box cover (27) is fixedly connected to the top of the inner powder box (25).

2. The 38mm stun-type riot control ammunition for a riot gun according to claim 1, characterized in that, The launch tube assembly (1) includes a tube body (11), which is fitted onto the surface of the projectile shell (21). A primer (12) is fixedly connected to the bottom of the tube body (11), and a propellant cartridge (13) is fixedly connected to the bottom of the inner cavity of the tube body (11).

3. The 38mm stun-type riot control ammunition for a riot gun according to claim 2, characterized in that, The top of the cylinder (11) is fixedly connected to a pressure cap (3), and the bottom of the pressure cap (3) is embedded in the top of the projectile shell (21).

4. The 38mm stun-type riot control ammunition for riot guns according to claim 1, characterized in that, The head of the projectile casing (21) is configured as a spherical structure with a radius of curvature of 15-20 mm.

5. A 38mm stun-type riot control round for a riot gun according to claim 1, characterized in that, The number of tail fins (23) is 4-6, and the tail fins (23) are evenly distributed along the circumference of the end cap (22).

6. A 38mm stun-type riot control round for a riot gun according to claim 1, characterized in that, The delay time of the flame delay detonator (24) is 3s-4s.

7. A 38mm stun-type riot control round for a riot gun according to claim 5, characterized in that, The tail fin (23) is tilted outward at the end away from the end cap (22) at an angle of 5°-8°.

8. A 38mm stun-type riot control round for a riot gun according to claim 2, characterized in that, The propellant cartridge (13) has evenly distributed ignition holes at the bottom, with a diameter of 2-3 mm.

9. A 38mm stun-type riot control round for a riot gun according to claim 2, characterized in that, The projectile casing (21) is made of engineering plastic, and the cylinder (11) is made of steel.

10. A 38mm stun-type riot control round for a riot gun according to claim 2, characterized in that, A buffer pad is provided between the flame delay detonator (24) and the end cap (22), and the buffer pad is made of silicone rubber.

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