Speed reduction device and emitter comprising same

Abstract

The invention discloses a speed reduction device and an emitter comprising the speed reduction device, and belongs to the technical field of anti-riot weapons. The speed reducer comprises a tubular seat body, three racks and an adjusting hand wheel; the three racks are arranged around the central axis at equal intervals to form a horn-shaped cavity with the adjustable size, and one end of an opening of the horn-shaped cavity formed by the three racks is inserted into the cavity of the base body and penetrates out of a first notch in the side wall of the base body. The adjusting hand wheel is arranged at the end, close to the racks, of the base body in a sleeving mode and connected with the three racks through threads in a meshed mode. The launcher further comprises a gun barrel, the speed reduction device is arranged on the periphery of the opening portion of the gun barrel in a sleeving mode, and the adjusting hand wheel is close to the opening portion of the gun barrel. The diameter of a horn-shaped cavity formed by the three racks can be smaller than the inner diameter of an inner chamber of the launcher by manually rotating the adjusting hand wheel, and the aim of reducing the ammunition speed is achieved.

Description

Technical Field

[0001] The 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 bullets are usually bean bag bullets and rubber ball projectiles. If special devices are not used to control the muzzle velocity of the projectiles, the projectiles will have problems such as poor accuracy or poor safety when striking living targets at different distances. If kinetic bullets are fired at a higher speed, excess energy will be generated when striking and subduing close-range living targets, which may easily cause fatal injuries or even death. If kinetic bullets are fired at a lower speed, the accuracy of striking and subduing long-range living targets is not high, and they cannot be effectively hit.

[0003] Chinese patent CN213932211U discloses an attached ammunition firing speed regulating device, which controls the projectile firing energy and adjusts the projectile exit speed by controlling the amount of propellant. However, it has the disadvantages of complex structure, high cost, slow control of charge amount, and delay of fighter jets. In addition, the device requires electric drive and is not convenient for individual soldiers to carry. Chinese patent CN111947511A discloses a projectile speed control method, device and electronic equipment for a track-type electromagnetic launcher, which uses multiple pulse power modules, and after the projectile is triggered to start the launch by starting the first type of pulse power module of the power supply, the detection speed of the projectile passing through the preset detection position of the track of the track-type electromagnetic launcher is obtained, and the actual start-up time of the second type of pulse power module is calculated based on the detection speed according to the pre-established relationship between the speed of the projectile passing through the preset detection position and the start-up time of the second type of pulse power module; when the actual start-up time arrives, the second type of pulse power module of the power supply is started to control the exit speed of the projectile. The device has a complex structure and cannot launch non-metallic ammunition such as non-lethal rubber bullets and beanbag bullets, which cannot meet the requirements of non-lethal strikes, and the device needs to be driven by electricity, which is not convenient for a single soldier to carry. Chinese patent CN111811343A discloses a riot kinetic energy projectile launch simulation system and control method, which uses a pressure compensation mechanism of a high-pressure tank to realize pressure compensation during the launch process, realizes uniform acceleration of the projectile and improves the consistency of the exit speed. The device of the invention has a complex structure, is not convenient for a single soldier to carry, and is not suitable for anti-terrorism and emergency tasks.

[0004] Therefore, there is an urgent need for a novel deceleration device and a launcher including the deceleration device so that a single soldier can carry the deceleration device to perform 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 smaller than the inner diameter of the inner bore 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, which is 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 comprises a tubular seat 42, three racks 45, and an adjusting 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 seat body 42 and passes through the first notch on the side wall of the seat body 42; the adjusting hand wheel 46 is sleeved on one end of the seat body 42 close to 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 is rotated by meshing with the rack 45 through the tooth pattern, 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 seat body 42 via two axially symmetrical positioning mechanisms.

[0010] According to the deceleration device described in 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 described in the first aspect of the present invention, a first circular step is radially arranged in the middle of the outer circumference of the seat body 42, and a plurality of positioning holes are evenly spaced 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] The adjusting hand wheel 46 is rotated to move the steel ball 43 between the plurality of positioning holes, so as to realize the rotation connection and positioning between the adjusting hand wheel 46 and the seat body 42 .

[0013] According to the reduction gear device described in the first aspect of the present invention, the reduction gear device 4 further comprises a first insert 41 , and the first insert 41 is fixedly disposed on the outer periphery of the seat body 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 comprises a second insert 47 , which is fixedly disposed on the outer periphery of the adjusting hand wheel 46 ; the adjusting hand wheel 46 is driven to rotate by manually rotating the second insert 47 .

[0015] The second aspect of the present invention provides a launcher including the deceleration device described above, the launcher also includes a gun barrel 23, the deceleration device 4 is mounted 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.

[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 arranged 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 hand wheel 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 bore of the launcher by manually turning the adjusting 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, which is convenient for individual soldiers to carry out anti-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 for kinetic energy bullets, with good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying 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 reduction gear 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 position between the middle adjusting hand wheel and the second insert.

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

[0029] Figure 7 The present invention 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] Fig. 9 for Figure 7 A partial enlarged view of the connection between the ammunition and the barrel.

[0032] Fig.10 for Figure 7 Cross-section view of the mid-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-seat body, 43-steel ball, 44-spring, 45-rack, 46-adjusting hand wheel, 47-second insert, 5-retaining ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. 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.

[0035] In a first aspect, this embodiment provides a deceleration device for a launcher. Figure 1and Figure 2 As shown, the reduction device 4 includes a tubular seat body 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 seat body 42 and passes through the first notch on the side wall of the seat body 42; the adjusting hand wheel 46 is sleeved on one end of the seat 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 is rotated by meshing with the rack 45 through the tooth pattern, 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 seat 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, Figure 3 As shown, a first circular step is radially arranged in the middle of the outer circumference of the seat body 42, and a plurality of positioning holes are evenly spaced 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;

[0042] The adjusting hand wheel 46 is rotated to move the steel ball 43 between the plurality of positioning holes, so as to realize the rotation 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 reduction gear 4 further includes a first insert 41 , and the first insert 41 is fixedly disposed on the outer periphery of the seat body 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 row ring grooves.

[0046] In some embodiments, the deceleration device 4 further includes a second insert 47 , which is fixedly disposed on the outer 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] A second aspect of 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, Figure 7 and Figure 8 As shown, a second circular step is radially arranged on the outer periphery of the mouth of the gun 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 hand wheel 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 comprises ammunition 1, and the ammunition 1 is disposed in the rear end of the bore of the barrel 23;

[0055] like Figure 7 and Fig. 9 As shown, the ammunition 1 and the barrel component 2 are in contact with the inclined surface of the barrel 23 through the protrusion on the bottom edge 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 swivel pin 3 , and the barrel 23 and the deceleration device 4 are fixedly connected via the swivel pin 3 , which is used to limit the rotational freedom and translational freedom of the deceleration device 4 on the outer circumferential surface of the barrel 23 .

[0057] In some embodiments, Fig.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 rotated by meshing with the rack 45 through the tooth pattern, 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 the ammunition 1 is fired, the ammunition 1 moves in the inner bore of the barrel component 2. When the adjusting hand wheel 46 is manually turned so that the diameter of the trumpet-shaped cavity formed by the three racks 45 is smaller than the inner diameter of the inner bore of the barrel 23, the ammunition 1 moves to the deceleration control device 4 and is squeezed and rubbed by the three racks 45, thereby reducing the movement speed of the ammunition 1, which is used to strike and subdue living targets at close range. When the adjusting hand wheel 46 is reversely turned so that the diameter of the trumpet-shaped cavity formed by the three racks 45 is larger than the inner diameter of the inner bore of the barrel 23, the movement speed of the ammunition 1 is not affected by the racks 45 and the ammunition 1 directly flies out of the muzzle, which is used to strike and subdue living targets at long distances.

[0061] In summary, the solution proposed by 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 bore of the launcher by manually turning the adjusting 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, which is convenient for individual soldiers to carry out anti-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 for 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, all possible combinations of the technical features in the above embodiments are not 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, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several variations and improvements can be made, which all belong to the scope of protection of the present 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 comprises 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 seat body and passes through the first notch of the side wall of the seat body; the adjusting hand wheel is mounted on one end of the seat body close to the rack and is engaged with the three racks through threads; The adjusting hand wheel is manually turned, and the adjusting hand wheel rotates through the engagement of the tooth pattern 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, so as to adjust the speed of the projectile.

2. The reduction gear device 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 reduction gear device according to claim 2, characterized in that: The positioning mechanism comprises a steel ball and a spring connected to the steel ball, and the other end of the spring is connected to the adjusting hand wheel.

4. The reduction gear device according to claim 3, characterized in that: A first circular step is radially arranged in the middle of the outer circumference of the seat body, and a plurality of positioning holes are evenly spaced 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, so as to realize the rotation connection and positioning of the adjusting hand wheel and the seat body.

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

6. The reduction gear device according to claim 1, characterized in that: The deceleration device further comprises 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 also includes 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 whose shapes match 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 radially arranged on the outer periphery of the barrel mouth to limit the axial left-side freedom of the deceleration device.

10. The transmitter according to claim 7, characterized in that The launcher also 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 surface of the mouth of the barrel to limit the axial movement of the adjusting hand wheel.

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