A deceleration device and a launcher including the deceleration device

Abstract

The present invention discloses a deceleration device and a launcher including the deceleration device, belonging to the technical field of riot control weapons. The deceleration device includes a tubular base, three racks, and an adjustment handwheel; the three racks are arranged at equal intervals around the central axis to form a trumpet-shaped cavity of adjustable size, and one end of the trumpet-shaped cavity formed by the three racks is inserted into the cavity of the base and passes through the first notch in the side wall of the base; the adjustment handwheel is mounted on one end of the base close to the racks and is connected to the three racks by threaded engagement; the launcher also includes a barrel, the deceleration device is mounted on the outer periphery of the mouth of the barrel, and the adjustment handwheel is close to the mouth of the barrel. By manually turning the adjustment handwheel, the diameter of the trumpet-shaped cavity formed by the three racks can be made smaller than the inner diameter of the launcher's inner bore, thereby achieving the purpose of reducing the speed of the ammunition.

Description

Technical Field

[0001] The present invention belongs to the technical field of riot control weapons, and in particular relates to a deceleration device and a launcher comprising the deceleration device. Background Art

[0002] Existing non-lethal kinetic projectiles are usually bean bag rounds and rubber ball projectiles. If a special device is not used to control the muzzle velocity of the projectile, the projectile will have problems such as poor accuracy or poor safety when hitting living targets at different distances. If kinetic projectiles are fired at a higher speed, the projectiles will have excess energy when hitting and subduing living targets at close range, which can easily cause fatal injuries or even death. If kinetic projectiles are fired at a lower speed, the projectiles will have low accuracy when hitting and subduing living targets at a distance, and they will not be able to effectively hit them.

[0003] Chinese patent CN213932211U discloses an attached ammunition firing speed adjustment device, which controls the projectile firing energy and adjusts the projectile exit speed by controlling the amount of propellant. However, it has disadvantages such as complex structure, high cost, slow control of the charge amount, and delays in combat. In addition, the device requires electric drive and is not convenient for individual soldiers to carry. Chinese patent CN111947511A discloses a projectile velocity control method, device, and electronic device for a rail-type electromagnetic launcher. The method employs multiple pulse power modules. After triggering the projectile launch by activating a first type of pulse power module, the projectile's velocity is detected as it passes through a preset detection position on the rail of the rail-type electromagnetic launcher. The actual activation time of the second type of pulse power module is calculated based on the detected velocity, according to a pre-established relationship between the projectile's velocity passing through the preset detection position and the activation time of the second type of pulse power module. Upon reaching the actual activation time, the second type of pulse power module is activated to control the projectile's exit velocity. However, the device is complex in structure and cannot fire non-metallic ammunition such as non-lethal rubber bullets and bean bag rounds, failing to meet non-lethal strike requirements. Furthermore, the device requires electrical power, making it inconvenient for individual soldiers to carry. Chinese patent CN111811343A discloses a kinetic energy projectile launch simulation system and control method for riot control. The system utilizes a pressure compensation mechanism in a high-pressure tank to achieve pressure compensation during launch, achieving uniform acceleration of the projectile and improving exit velocity consistency. However, the device is complex in structure and inconvenient for individual soldiers to carry, making it unsuitable for counter-terrorism and emergency response missions.

[0004] Therefore, there is an urgent need for a new type of deceleration device and a launcher including the deceleration device so that individual soldiers can carry it to carry out counter-terrorism and emergency response tasks. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention proposes a deceleration device and a launcher including the deceleration device. By manually turning the adjustment hand wheel, the diameter of the trumpet-shaped cavity formed by the three racks can be made smaller than the inner diameter of the inner chamber of the launcher. The ammunition moves to the deceleration device, and the three racks produce squeezing and friction effects on the ammunition, thereby achieving the purpose of reducing the speed of the ammunition, making it convenient for individual soldiers to carry out counter-terrorism and emergency response tasks.

[0006] The first aspect of the present invention provides a deceleration device for a launcher, wherein the deceleration device 4 includes a tubular base 42, three racks 45, and an adjustment hand wheel 46;

[0007] The three racks 45 are arranged at equal intervals around the central axis to form a trumpet-shaped cavity with adjustable size. One end of the trumpet-shaped cavity formed by the three racks 45 is inserted into the cavity of the base body 42 and passes through the first notch in the side wall of the base body 42. The adjustment handwheel 46 is mounted on one end of the base body 42 near the racks 45 and is connected to the three racks 45 by threaded engagement.

[0008] The adjusting hand wheel 46 is manually rotated, and the adjusting hand wheel 46 rotates by meshing with the rack 45 through the teeth, so that the diameter of the trumpet-shaped cavity formed by the three racks 45 is larger or smaller than the inner diameter of the inner bore of the launcher, so as to adjust the speed of the projectile.

[0009] According to the reduction gear device described in the first aspect of the present invention, the adjusting hand wheel 46 is rotatably connected to the base body 42 via two axially symmetrical positioning mechanisms.

[0010] According to the deceleration device of the first aspect of the present invention, the positioning mechanism includes a steel ball 43 and a spring 44 connected to the steel ball 43 , and the other end of the spring 44 is connected to the adjusting hand wheel 46 .

[0011] According to the reduction gear device of the first aspect of the present invention, a first circular step is provided radially in the middle portion of the outer circumference of the seat body 42, and a plurality of positioning holes are provided at equal intervals on an end surface of one side of the first circular step close to the adjusting hand wheel 46, and the size of the positioning holes matches the size of the steel ball 43;

[0012] Rotating the adjusting hand wheel 46 causes the steel ball 43 to move between the plurality of positioning holes, thereby achieving rotational connection and positioning between the adjusting hand wheel 46 and the seat body 42 .

[0013] According to the reduction gear device of the first aspect of the present invention, the reduction gear device 4 further includes a first insert 41 , which is fixedly disposed on the outer periphery of the seat 42 away from the rack 45 .

[0014] According to the reduction gear device described in the first aspect of the present invention, the reduction gear device 4 further includes a second insert 47 , which is fixedly arranged on the periphery of the adjusting hand wheel 46 ; the adjusting hand wheel 46 is driven to rotate by manually rotating the second insert 47 .

[0015] A second aspect of the present invention provides a launcher including the aforementioned deceleration device, the launcher also including a barrel 23, the deceleration device 4 is sleeved on the outer periphery of the mouth of the barrel 23, and the adjustment handwheel 46 is close to the mouth of the barrel 23.

[0016] According to the launcher described in the second aspect of the present invention, the mouth of the barrel 23 is provided with three second notches whose shapes match the rack 45 for accommodating the rack 45 , and the three second notches are arranged at equal intervals around the central axis.

[0017] According to the launcher described in the second aspect of the present invention, a second circular step is radially provided on the outer periphery of the mouth of the barrel 23 to limit the axial left degree of freedom of the deceleration device 4 .

[0018] According to the launcher described in the second aspect of the present invention, the launcher also includes a retaining ring 5, which is sleeved on the outer periphery of the mouth of the barrel 23, and the retaining ring 5 is arranged between the deceleration device 4 and the end face of the mouth of the barrel 23 to limit the axial movement of the adjusting handwheel 46.

[0019] The solution proposed by the present invention has the following technical effects:

[0020] The deceleration device of the present invention can realize that the diameter of the trumpet-shaped cavity formed by the three racks is smaller than the inner diameter of the inner chamber of the launcher by manually turning the adjustment hand wheel. When the ammunition moves to the deceleration device, the three racks produce squeezing and friction effects on the ammunition, thereby achieving the purpose of reducing the speed of the ammunition, making it convenient for individual soldiers to carry out counter-terrorism and emergency response tasks.

[0021] In addition, the deceleration device of the present invention is quick to adjust, easy to use, and highly reliable. It can be used in combat scenarios such as high temperature, low temperature, dust, and rain, and can achieve a constant energy equivalent strike effect within a range of 60 meters of kinetic energy bullets, with good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1The figure is an exploded view of a deceleration device in one embodiment of the present invention.

[0024] Figure 2 It is a cross-sectional view of a deceleration device in one embodiment of the present invention.

[0025] Figure 3 for Figure 2 DD cross-sectional view.

[0026] Figure 4 for Figure 2 A partial enlarged view of the connection position between the middle seat body and the first insert.

[0027] Figure 5 for Figure 2 A partial enlarged view of the connection between the middle adjustment handwheel and the second insert.

[0028] Figure 6 The figure is an exploded view of a launcher including a deceleration device according to an embodiment of the present invention.

[0029] Figure 7 The figure is a cross-sectional view of a launcher including a deceleration device according to an embodiment of the present invention.

[0030] Figure 8 for Figure 7 A partial enlarged view of the connection between the deceleration device and the barrel.

[0031] Figure 9 for Figure 7 A partial enlarged view of the connection between the ammunition and the barrel.

[0032] Figure 10 for Figure 7 Cross-section of the barrel assembly.

[0033] In the figure, 1-ammunition, 2-barrel assembly, 21-section sleeve, 22-section sleeve pin, 23-barrel, 3-turn pin, 4-deceleration device, 41-first insert, 42-base, 43-steel ball, 44-spring, 45-rack, 46-adjusting handwheel, 47-second insert, 5-retaining ring. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In a first aspect, this embodiment provides a deceleration device for a launcher. Figure 1and Figure 2 As shown, the reduction gear 4 includes a tubular seat 42 , three racks 45 , and an adjusting hand wheel 46 .

[0036] Preferably, one end of the rack 45 is an arc-shaped structure.

[0037] The three racks 45 are arranged at equal intervals around the central axis to form a trumpet-shaped cavity with adjustable size. One end of the trumpet-shaped cavity formed by the three racks 45 is inserted into the cavity of the base body 42 and passes through the first notch on the side wall of the base body 42; the adjusting handwheel 46 is sleeved on one end of the base body 42 close to the rack 45 and is connected to the three racks 45 by threaded engagement.

[0038] The adjusting hand wheel 46 is manually rotated, and the adjusting hand wheel 46 rotates by meshing with the rack 45 through the teeth, so that the diameter of the trumpet-shaped cavity formed by the three racks 45 is larger or smaller than the inner diameter of the inner bore of the launcher, so as to adjust the speed of the projectile.

[0039] In some embodiments, the adjusting hand wheel 46 is rotatably connected to the base body 42 via two axially symmetrical positioning mechanisms.

[0040] In some embodiments, the positioning mechanism includes a steel ball 43 and a spring 44 connected to the steel ball 43 , and the other end of the spring 44 is connected to the adjusting hand wheel 46 .

[0041] In some embodiments, as Figure 3 As shown, a first circular step is provided radially in the middle of the outer periphery of the seat body 42, and a plurality of positioning holes are provided at equal intervals on the end surface of one side of the first circular step close to the adjusting hand wheel 46, and the size of the positioning holes matches the size of the steel ball 43;

[0042] Rotating the adjusting hand wheel 46 causes the steel ball 43 to move between the plurality of positioning holes, thereby achieving rotational connection and positioning between the adjusting hand wheel 46 and the seat body 42 .

[0043] Preferably, the first notch and the first circular step are located on the same cross section of the seat body 42 .

[0044] In some embodiments, the deceleration device 4 further includes a first insert 41 , which is fixedly disposed on the outer periphery of the seat 42 away from the rack 45 .

[0045] Preferably, if Figure 4 As shown, the seat body 42 and the first insert 41 are injection molded together through two ring grooves.

[0046] In some embodiments, the deceleration device 4 further includes a second insert 47 , which is fixedly disposed on the periphery of the adjusting hand wheel 46 ; the adjusting hand wheel 46 is driven to rotate by manually rotating the second insert 47 .

[0047] Preferably, if Figure 5 As shown, the adjusting hand wheel 46 is injection-molded together with the second insert 47 .

[0048] In a second aspect, this embodiment provides a launcher including the aforementioned deceleration device, such as Figure 6-Figure 7 As shown, the launcher further includes a gun barrel 23 , the deceleration device 4 is sleeved on the outer periphery of the mouth of the gun barrel 23 , and the adjustment hand wheel 46 is close to the mouth of the gun barrel 23 .

[0049] Preferably, the deceleration device 4 is in contact with the outer circumferential surface of the gun barrel 23 .

[0050] In some embodiments, the mouth of the gun barrel 23 is provided with three second notches whose shapes match the rack 45 for accommodating the rack 45 , and the three second notches are arranged at equal intervals around the central axis.

[0051] In some embodiments, as Figure 7 and Figure 8 As shown, a second circular step is provided radially on the outer periphery of the mouth of the barrel 23 to limit the axial left degree of freedom of the deceleration device 4 .

[0052] In some embodiments, the launcher further includes a retaining ring 5, which is sleeved on the outer periphery of the mouth of the barrel 23, and the retaining ring 5 is arranged between the deceleration device 4 and the end face of the mouth of the barrel 23 to limit the axial movement of the adjusting handwheel 46.

[0053] Preferably, the right end surface of the retaining ring 5 is flush with the mouth end surface of the gun barrel 23 .

[0054] In some embodiments, the launcher further includes ammunition 1, which is disposed in the rear end of the barrel 23;

[0055] like Figure 7 and Figure 9 As shown, the ammunition 1 and the barrel component 2 are in contact with the inclined surface of the barrel 23 through the bottom edge protrusion of the ammunition 1 to limit the axial forward movement of the ammunition 1 ( Figure 2 The outer surface of the ammunition 1 is fitted with the inner bore of the barrel 23 to limit the translational freedom of the ammunition 1.

[0056] In some embodiments, the launcher further includes a detent pin 3 , and the barrel 23 and the deceleration device 4 are fixedly connected via the detent pin 3 , which is used to limit the rotational freedom and translational freedom of the deceleration device 4 on the outer surface of the barrel 23 .

[0057] In some embodiments, as Figure 10 As shown, a sleeve 21 is sleeved on the outer periphery of the rear end of the gun barrel 23 , and the sleeve 21 is fixedly connected to the gun barrel 23 via a sleeve pin 22 .

[0058] The working process and principle of a deceleration device and / or a launcher including the deceleration device of the present invention are as follows:

[0059] The adjusting hand wheel 46 is manually rotated, and the adjusting hand wheel 46 is engaged with the rack 45 through the tooth pattern and rotates, so that the diameter of the trumpet-shaped cavity formed by the three racks 45 is larger or smaller than the inner diameter of the inner bore of the barrel 23.

[0060] After ammunition 1 is fired, it moves within the bore of barrel assembly 2. Manually rotating adjustment wheel 46 until the diameter of the flared cavity formed by the three racks 45 is smaller than the inner diameter of barrel 23, ammunition 1 moves to deceleration control device 4, where it is squeezed and rubbed by the three racks 45, thereby reducing the speed of ammunition 1, enabling it to engage and neutralize living targets at close range. Rotating adjustment wheel 46 in the opposite direction, such that the diameter of the flared cavity formed by the three racks 45 is larger than the inner diameter of barrel 23, the ammunition 1 is no longer affected by the racks 45 and exits the muzzle, enabling it to engage and neutralize living targets at long range.

[0061] In summary, the solution proposed in the present invention has the following technical effects:

[0062] The deceleration device of the present invention can realize that the diameter of the trumpet-shaped cavity formed by the three racks is smaller than the inner diameter of the inner chamber of the launcher by manually turning the adjustment hand wheel. When the ammunition moves to the deceleration device, the three racks produce squeezing and friction effects on the ammunition, thereby achieving the purpose of reducing the speed of the ammunition, making it convenient for individual soldiers to carry out counter-terrorism and emergency response tasks.

[0063] In addition, the deceleration device of the present invention is quick to adjust, easy to use, and highly reliable. It can be used in combat scenarios such as high temperature, low temperature, dust, and rain, and can achieve a constant energy equivalent strike effect within a range of 60 meters of kinetic energy bullets, with good effect.

[0064] Please note that the technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above embodiments only express several implementation methods of the present application. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of this application, several variations and improvements can be made, which all fall within the scope of protection of this application. Therefore, the scope of protection of the patent in this application shall be based on the attached claims.

Claims

1. A deceleration device for a launcher, characterized in that: The deceleration device includes a tubular seat, three racks, and an adjusting hand wheel; The three racks are arranged at equal intervals around the central axis to form a trumpet-shaped cavity with adjustable size. One end of the trumpet-shaped cavity formed by the three racks is inserted into the cavity of the base body and passes through the first notch of the side wall of the base body; the adjustment handwheel is mounted on one end of the base body close to the racks and is engaged with the three racks by threads; The adjusting hand wheel is manually turned, and the adjusting hand wheel rotates through the engagement of the teeth with the rack, so that the diameter of the trumpet-shaped cavity formed by the three racks is larger or smaller than the inner diameter of the inner bore of the launcher to adjust the speed of the projectile.

2. The reduction gear according to claim 1, characterized in that: The adjusting hand wheel is rotatably connected to the seat body through two axially symmetrical positioning mechanisms.

3. The deceleration device according to claim 2, characterized in that: The positioning mechanism includes a steel ball and a spring connected to the steel ball, and the other end of the spring is connected to the adjusting handwheel.

4. The reduction gear according to claim 3, characterized in that: A first circular step is provided in the radial direction at the middle portion of the outer circumference of the seat body, and a plurality of positioning holes are provided at equal intervals on an end surface of one side of the first circular step close to the adjusting hand wheel, and the size of the positioning holes matches the size of the steel ball; Rotating the adjusting hand wheel causes the steel ball to move between the plurality of positioning holes, thereby realizing the rotational connection and positioning of the adjusting hand wheel and the base body.

5. The reduction gear according to claim 1, characterized in that: The deceleration device further includes a first insert, which is fixedly disposed on the outer periphery of the seat away from the rack.

6. The reduction gear according to claim 1, characterized in that: The deceleration device further includes a second insert, which is fixedly arranged on the outer periphery of the adjusting hand wheel; the adjusting hand wheel is driven to rotate by manually rotating the second insert.

7. A launcher comprising the deceleration device according to any one of claims 1 to 6, characterized in that: The launcher further comprises a gun barrel, the deceleration device is sleeved on the outer periphery of the mouth of the gun barrel, and the adjusting hand wheel is close to the mouth of the gun barrel.

8. The transmitter according to claim 7, characterized in that The mouth of the gun barrel is provided with three second notches with shapes matching the rack for accommodating the rack, and the three second notches are arranged at equal intervals around the central axis.

9. The transmitter according to claim 7, characterized in that A second circular step is provided in the radial direction on the outer periphery of the barrel mouth to limit the axial left degree of freedom of the deceleration device.

10. The transmitter according to claim 7, characterized in that The launcher further includes a retaining ring, which is sleeved on the outer periphery of the mouth of the barrel and is arranged between the deceleration device and the end face of the mouth of the barrel to limit the axial movement of the adjusting handwheel.

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