Muzzle vibration reduction, noise reduction and pressurization device

Abstract

This invention relates to a muzzle vibration reduction, noise reduction, and pressurization device, belonging to the field of mechanics. It includes a ferrule holder, a cone plug assembly, and a plug cap. The ferrule holder mates with the muzzle and is cylindrical with an axial opening on its side. A U-shaped notch is provided on the rear face of the ferrule holder, corresponding to the opening. A cone plug hole is coaxially formed on the front face of the ferrule holder. The cone plug assembly includes a cone plug, a washer, a spring, and a limiting block. The cone plug is tubular, with a circumferentially arranged annular limiting ring on its outer wall. The inner diameter of the cone plug is smaller than the inner diameter of the barrel. A spring is fitted onto the rear of the cone plug, and a recess is provided on the rear outer wall of the cone plug. A notch is provided on the limiting block, the width of which is the same as the width of the recess on the cone plug. The propellant gases are limited by the cone plug, increasing the intra-chamber pressure, ensuring the recoil energy of the bolt and smooth ejection of the spent cartridge case, thus providing buffering, energy absorption, and vibration reduction, ensuring reliable continuous firing, and improving service life.

Description

Technical Field

[0001] This invention relates to a muzzle vibration reduction, noise reduction, and pressurization device, belonging to the field of machinery. Background Technology

[0002] Blank cartridges are a type of ammunition used in firearms, primarily for training and exercises. Their key characteristic is that the warhead has no power outside a safe distance. They contain the complete cartridge case, propellant, and primer, but because they don't require a propellant warhead, they use less propellant compared to standard cartridges. When fired, they produce an audible and visual effect like standard cartridges, but there is no physical firing mechanism (warhead) outside a safe distance.

[0003] Before using blank cartridges, firearms intended to fire blank cartridges must be modified, for example, by adding an adapter to the muzzle. The adapter's bore is smaller than the muzzle bore, thus ensuring that there is sufficient gas pressure in the chamber to provide the recoil force to eject the spent cartridge when it is fired; otherwise, it will be difficult to eject the spent cartridge, making continuous firing impossible.

[0004] Current shock absorber designs are not ideal, resulting in less than ideal vibration reduction and noise reduction effects. They also provide limited downforce to the muzzle, leading to excessive muzzle bounce during firing, which affects the accuracy of burst fire and reduces the service life of the firearm. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a muzzle vibration reduction and noise reduction pressure boosting device, in which the gunpowder gas is limited by the cone plug to increase the pressure inside the chamber, ensuring the recoil energy of the bolt and smooth ejection of the spent cartridge case, playing the role of buffering, energy absorption and vibration reduction, ensuring reliable continuous firing and improving service life.

[0006] The muzzle vibration reduction, noise reduction and pressurization device of the present invention includes a ferrule seat, a cone plug assembly and a plug cap. The ferrule seat fits with the muzzle. The ferrule seat is cylindrical and has an opening along the axial direction on its side. A U-shaped notch is provided on the rear end face of the ferrule seat, and the notch corresponds to the opening. A cone plug hole is coaxially opened on the front end face of the ferrule seat.

[0007] The cone plug assembly includes a cone plug, a washer, a spring, and a limiting block. The cone plug is tubular, with an annular limiting ring arranged circumferentially on its outer wall. The inner diameter of the cone plug is smaller than the inner diameter of the gun barrel. A spring is fitted on the rear of the cone plug. A recess is provided on the outer wall of the rear of the cone plug. A notch is provided on the limiting block. The width of the notch is the same as the width of the recess on the cone plug.

[0008] The plug cap is cap-shaped with an opening at the tail end. The front end of the ferrule seat is threadedly connected to the plug cap. The cone plug assembly is enclosed inside the plug cap, and the cone plug nozzle extends out from the opening at the tail end of the plug cap.

[0009] The opening width corresponds to the diameter of the machine gun muzzle.

[0010] The muzzle width is greater than the barrel diameter but less than the muzzle diameter.

[0011] Working principle and process:

[0012] During operation, the washer and spring are sequentially fitted onto the rear of the cone plug. Then, the notch of the limiting block is engaged with the recess on the cone plug to fix the spring in place. The machine gun muzzle is then inserted into the opening of the ferrule holder, ensuring the muzzle is properly engaged. The front end of the cone plug is then inserted into the cone plug hole of the ferrule holder and extends into the muzzle. The washer and spring are then fitted onto the cone plug in sequence, and the limiting block is engaged with the recess to fix the spring. Finally, the plug cap is screwed onto the ferrule holder to secure it, thus fixing the muzzle, ferrule holder, cone plug assembly, and plug cap together. The insertion of the front end of the cone plug into the cone plug hole of the ferrule holder and extending into the muzzle prevents the ferrule holder from separating from the muzzle. The inner diameter of the cone plug is smaller than the inner diameter of the barrel. Propellant gases are limited by the cone plug, increasing the pressure inside the barrel and ensuring the recoil energy of the bolt and smooth ejection of the spent cartridge. The spring within the cone plug assembly acts as a buffer, absorbs energy, and reduces vibration and noise, ensuring reliable continuous firing and extending service life.

[0013] The spring described is a rectangular spring. Within the same volume, a rectangular spring has a larger cross-section and greater elastic force, making it more resistant to high impact and high strength, and more suitable for repeated impacts, thus making it more suitable for harsh working environments.

[0014] A countersunk hole is provided on the back of the limiting block. The diameter of the countersunk hole corresponds to the outer diameter of the cone plug, and the center of the countersunk hole is on the center line of the notch on the limiting block. When the notch of the limiting block is engaged with the recess on the cone plug, the spring pushes the limiting block back, causing the cone plug to engage in the countersunk hole, preventing the limiting block from falling off.

[0015] The diameter of the opening at the tail end of the plug cap is larger than the diameter of the nozzle end of the cone plug, but smaller than the diameter of the limiting block. The nozzle end of the cone plug extends out from the opening, while simultaneously preventing the limiting block from detaching.

[0016] The nozzle end face of the cone plug component protrudes from the plug cap by about 2 to 3 millimeters.

[0017] The outer wall of the cone plug's inlet end is cone-shaped. This facilitates insertion into the bore.

[0018] The device includes a wrench and a stopper cap with evenly distributed circumferential locking holes on its outer wall. Two protrusions are located on the working end of the wrench, the distance between which corresponds to the spacing of the locking holes. The protrusions are inserted into the locking holes to facilitate tightening or loosening the stopper cap.

[0019] The beneficial effects of this invention compared to the prior art are:

[0020] The muzzle vibration reduction, noise reduction, and pressurization device of this invention involves inserting the machine gun muzzle into the opening of a ferrule holder, ensuring the muzzle is properly engaged, then inserting the front end of a cone plug into the cone plug hole of the ferrule holder and extending it into the muzzle. A washer and a spring are then sequentially fitted, and a limiting block engages with the recessed portion to limit the spring's position. Finally, the plug cap is screwed onto the ferrule holder for fixation, thus securing the muzzle, ferrule holder, cone plug assembly, and plug cap together. The cone plug's insertion into the cone plug hole of the ferrule holder and its extension into the muzzle prevents separation of the ferrule holder from the muzzle. The cone plug's inner diameter is smaller than the barrel's inner diameter, allowing propellant gases to flow through the cone plug, increasing the intra-barrel pressure and ensuring sufficient recoil energy for smooth ejection. The spring within the cone plug assembly acts as a buffer, absorbing energy and reducing vibration and noise, ensuring reliable continuous firing and extending service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention;

[0022] Figure 2 yes Figure 1 The installation diagram of Embodiment 1 is shown below;

[0023] Figure 3 yes Figure 1 A schematic diagram of the cone plug assembly of Embodiment 1 is shown;

[0024] Figure 4 This is a schematic diagram of Embodiment 2 of the present invention;

[0025] Figure 5 yes Figure 4 The installation diagram of Embodiment 2 is shown below;

[0026] Figure 6 yes Figure 4 A schematic diagram of the cone plug assembly in Embodiment 2 is shown;

[0027] Figure 7 yes Figure 1 The assembly diagram of Embodiment 1 is shown below;

[0028] Figure 8 yes Figure 1 The disassembly diagram of Embodiment 1 is shown.

[0029] In the diagram: 1. Compression fitting seat; 2. Tapered plug assembly; 3. Plug cap; 4. Internal tapered bore; 5. Thread; 6. Snap-fit ​​hole; 7. Vent hole; 8. Cylindrical bore; 9. Wrench; 10. Tapered plug hole; 201. Limiting ring; 202. Tapered plug; 203. Recess; 204. Washer; 205. Spring; 206. Limiting block; 207. Countersunk hole. Detailed Implementation

[0030] In this invention, unless otherwise expressly specified and defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should be understood that terms such as “center,” “lateral,” “longitudinal,” “front,” “rear,” “left,” “right,” “upper,” “lower,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” and “both sides,” indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this patent and simplifying the description, and are not intended to indicate or imply that the device or component shown must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this invention.

[0031] In this invention, unless otherwise explicitly specified and defined, terms such as "installation," "connection," "fixing," and "fitting fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The invention will now be described more fully with reference to the accompanying drawings illustrating embodiments of the invention. However, the invention may appear in many different forms and should not be construed as limited to the embodiments set forth herein, by which the invention becomes more complete; rather, these embodiments provided by way of example enable this disclosure to convey the scope of the invention to those skilled in the art. Furthermore, the drawings are merely schematic and not drawn to scale, and the same numbers always denote the same or similar elements or components.

[0033] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figures 1-3 , Figure 7 and Figure 8 As shown, the muzzle vibration reduction and noise reduction boosting device of the present invention includes a sleeve seat 1, a cone plug assembly 2 and a plug cap 3. The sleeve seat 1 is fitted with the muzzle. The sleeve seat 1 is cylindrical shell-shaped and has an opening along the axial direction on its side. A U-shaped bayonet is provided on the rear end face of the sleeve seat 1, and the bayonet corresponds to the opening. A cone plug hole 10 is coaxially opened on the front end face of the sleeve seat 1.

[0036] The cone plug assembly 2 includes a cone plug 202, a washer 204, a spring 205, and a limiting block 206. The cone plug 202 is tubular, with an annular limiting ring 201 arranged circumferentially on its outer wall. The inner diameter of the cone plug 202 is smaller than the inner diameter of the gun barrel. The spring 205 is fitted on the rear part of the cone plug 202. A recess 203 is provided on the outer wall of the rear part of the cone plug 202. A notch is provided on the limiting block 206, and the width of the notch is the same as the width of the recess 203 on the cone plug 202.

[0037] The plug cap 3 is cap-shaped with an opening at the tail end. The front end of the sleeve seat 1 is screwed to the plug cap 3 with thread 5. The cone plug assembly 2 is enclosed inside the plug cap 3. The nozzle end of the cone plug 202 extends out from the opening at the tail end of the plug cap 3.

[0038] The opening width corresponds to the diameter of the machine gun muzzle.

[0039] The muzzle width is greater than the barrel diameter but less than the muzzle diameter.

[0040] The inner diameter of the cone plug 202 gradually decreases from the inlet end to the outlet end, and its inlet end inner diameter is consistent with the inner diameter of the gun barrel. In this way, the high-pressure propellant gas has a flow-limiting transition process, and since the inner diameter of the cone plug 202 inlet end is consistent with the inner diameter of the gun barrel, it will not cause excessive impact to the cone plug 202 and avoid damage.

[0041] Working principle and process:

[0042] During operation, washers 204 and springs 205 are sequentially fitted onto the rear of the cone plug 202. Then, the notch of the limiting block 206 is engaged with the recess 203 on the cone plug 202, fixing the spring 205 in place. The machine gun muzzle is then inserted into the opening of the sleeve seat 1, ensuring the muzzle is properly engaged. The front end of the cone plug 202 is then inserted into the cone plug hole 10 of the sleeve seat 1 and extends into the muzzle. Washers 204 and springs 205 are sequentially fitted onto the cone plug 202. The limiting block 206 is engaged with the recess 203 to fix the spring 205 in place. Finally, the plug cap 3 is screwed onto the sleeve seat 1, securing the muzzle, sleeve seat 1, cone plug assembly 2, and plug cap 3 together. The insertion of the front end of the cone plug 202 into the cone plug hole 10 of the sleeve seat 1 and extending into the muzzle prevents the sleeve seat 1 from separating from the muzzle. The inner diameter of the cone plug 202 is smaller than that of the barrel. The propellant gas is limited by the cone plug 202 to increase the pressure inside the chamber, ensuring the recoil energy of the bolt and smooth ejection of the spent cartridge. The spring 205 inside the cone plug 202 plays the role of buffering, absorbing energy and reducing vibration and noise, ensuring reliable continuous firing and improving service life.

[0043] The muzzle is an inner conical muzzle 4. This type of muzzle is deep inside and has strip-shaped holes evenly distributed around its circumference. When installed, the notch faces directly upward, so the lower strip-shaped holes of the muzzle are blocked. When fired, some of the gunpowder gas in the barrel is ejected from the upper part of the muzzle, which creates downward pressure on the muzzle, reduces muzzle jump, and improves the accuracy of continuous fire.

[0044] The spring 205 is a rectangular spring 205. Within the same volume, the rectangular spring 205 has a larger cross-section and greater elastic force, making it more resistant to high impact and high strength, and more suitable for harsh working environments.

[0045] A countersunk hole 207 is provided on the back of the limiting block 206. The diameter of the countersunk hole 207 corresponds to the outer diameter of the cone plug 202, and the center of the countersunk hole 207 is on the center line of the notch of the limiting block 206. When the notch of the limiting block 206 is engaged with the recess 203 on the cone plug 202, the spring 205 pushes the limiting block 206 back, so that the cone plug 202 is engaged in the countersunk hole 207, preventing the limiting block 206 from falling off.

[0046] The diameter of the opening at the tail end of the plug cap 3 is larger than the diameter of the nozzle end of the cone plug 202, but smaller than the diameter of the limiting block 206. The nozzle end of the cone plug 202 extends out from the opening, while preventing the limiting block 206 from disengaging.

[0047] The nozzle end face of the cone plug 202 component protrudes from the plug cap 3 by about 2 to 3 millimeters.

[0048] The outer wall of the inlet end of the cone plug 202 is cone-shaped. This facilitates insertion into the bore.

[0049] The device includes a wrench 9 and a plug cap 3 with circumferentially distributed locking holes 6 on its outer wall. The working end of the wrench 9 has two protrusions, the distance between which corresponds to the spacing of the locking holes 6. The protrusions are inserted into the locking holes 6, making it easy to tighten or loosen the plug cap 3.

[0050] Example 2

[0051] Unlike Embodiment 1, this embodiment corresponds to a cylindrical bore 8, which is tubular. The length of the inlet portion of the corresponding conical plug 202 is shorter than that of the inlet portion of the conical plug 202 in Embodiment 1, but the diameter is larger. An exhaust port 7 is provided at the front of the ferrule seat 1 corresponding to the position of the conical plug 202. Since the diameter of the conical plug 202 is larger, the gap between the conical plug 202 and the ferrule seat 1 is smaller, requiring an additional exhaust port 7 to exhaust air and reduce the impact caused by excessive air pressure.

[0052] These or other modifications can be made to this device with reference to the above detailed description. Although the above detailed description describes specific embodiments of the invention and the intended best mode, the system can be implemented in various ways, regardless of the level of detail in the description herein. While the details of local support devices may vary considerably in their implementation details, they are still included within the scope of the device disclosed herein. As stated above, the specific technical terms used in describing particular features or aspects of this device are not intended to be redefined herein to be limited to the specific characteristic, feature, or aspect of the system associated with the term. In general, the terminology used in the following claims should not be construed as limiting the system to the specific embodiments disclosed in the specification, unless these terms are expressly defined in the above detailed description section. Therefore, the actual scope of this system includes not only the disclosed embodiments but also all equivalent ways of implementing or carrying out the device as covered by the claims.

Claims

1. A muzzle vibration reduction, noise reduction, and pressurization device, characterized in that: Includes a ferrule seat (1), a cone plug assembly (2) and a plug cap (3). The ferrule seat (1) fits with the bore. The ferrule seat (1) is cylindrical and has an opening along the axial direction on its side. A U-shaped mortise is provided on the rear end face of the ferrule seat (1), with the mortise corresponding to the opening. A cone plug hole (10) is coaxially opened on the front end face of the ferrule seat (1). The cone plug assembly (2) includes a cone plug (202), a washer (204), a spring (205), and a limiting block (206). The cone plug (202) is tubular, and an annular limiting ring (201) is provided on its outer wall along the circumference. The inner diameter of the cone plug (202) is smaller than the inner diameter of the gun barrel. A spring (205) is fitted on the rear part of the cone plug (202). A recess (203) is provided on the outer wall of the rear part of the cone plug (202). A notch is provided on the limiting block (206), and the width of the notch is the same as the width of the recess (203) on the cone plug (202). The plug cap (3) is cap-shaped with an opening at the tail end. The front end of the sleeve seat (1) is screwed into the plug cap (3) by the thread (5). The cone plug assembly (2) is enclosed in the plug cap (3). The nozzle end of the cone plug (202) extends out from the opening at the tail end of the plug cap (3). Place the washer (204) and spring (205) onto the rear of the cone plug (202) in sequence, and then lock the notch of the limiting block (206) onto the recess (203) on the cone plug (202) to limit and fix the spring (205); Insert the machine gun muzzle into the opening of the sleeve seat (1) so that the muzzle is inserted into the sleeve seat (1). Then insert the front end of the cone plug (202) into the cone plug hole (10) of the sleeve seat (1) and extend it into the muzzle. Then put on the washer (204) and spring (205) in sequence. The limiting block (206) is inserted into the recess (203) to limit the spring (205). Screw the plug cap (3) onto the ferrule seat (1) to fix it in place, and fix the bore, ferrule seat (1), cone plug assembly (2) and plug cap (3) together.

2. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The opening width corresponds to the diameter of the machine gun muzzle.

3. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The muzzle width is greater than the barrel diameter but less than the muzzle diameter.

4. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The inner diameter of the cone plug (202) gradually decreases from the inlet end to the outlet end, and its inlet end inner diameter is consistent with the inner diameter of the gun barrel.

5. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The spring (205) is a rectangular spring (205).

6. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: A countersunk hole (207) is provided on the back of the limiting block (206). The diameter of the countersunk hole (207) corresponds to the outer diameter of the cone plug (202), and the center of the countersunk hole (207) is on the center line of the notch of the limiting block (206). The spring (205) pushes the limiting block (206) back, so that the cone plug (202) is inserted into the countersunk hole (207).

7. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The diameter of the opening at the tail end of the plug cap (3) is greater than the diameter of the nozzle end of the cone plug (202) and less than the diameter of the limiting block (206).

8. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: The outer wall of the inlet end of the cone plug (202) is cone-shaped.

9. The muzzle vibration reduction, noise reduction, and pressurization device according to claim 1, characterized in that: Includes a wrench (9), a plug cap (3) with circumferentially distributed locking holes (6) on its outer wall, and two protrusions on the working end of the wrench (9), the distance between the two protrusions corresponding to the spacing of the locking holes (6).

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