A muzzle suppressor

Abstract

The invention provides a muzzle suppressor, comprising a joint, a suppressor outer tube threadedly connected to the joint, and a bottom cover threadedly connected to the suppressor outer tube, which are sequentially arranged from back to front. The joint is threadedly connected to a gun barrel, and a suppressor inner tube is arranged between the joint and the bottom cover. The suppressor inner tube is located in the suppressor outer tube, and the rear end face of the suppressor inner tube abuts against the front end face of the joint, and the front end face abuts against the rear end face of the bottom cover. A plurality of through holes a are arranged on the wall of the suppressor inner tube in the circumferential direction, and a damper is sleeved in each of the through holes a. The head of the damper passes through the through hole a and extends into the cavity of the suppressor inner tube, and the tail is arranged between the suppressor inner tube and the suppressor outer tube and abuts against each other, so as to repeatedly divert and reflect the gunpowder gas entering the suppressor inner tube, thereby reducing the flow rate and pressure of the gunpowder gas. When shooting, a sniper rifle equipped with the suppressor of the invention can effectively shorten the muzzle flame length, and has a significant noise reduction effect.

Description

Technical Field

[0001] The invention belongs to the technical field of firearms, and in particular relates to a muzzle suppressor. Background Art

[0002] Muzzle suppressors are also commonly known as suppressors and silencers. They are devices attached to firearms to reduce the noise and flame size generated when the weapon is fired. Usually, they are installed at the muzzle of the barrel. In combat, soldiers (shooters) need to conceal themselves to avoid being discovered by the enemy. However, when a firearm is fired, the muzzle of the barrel will produce obvious muzzle flames and loud muzzle noise. The muzzle noise usually reaches more than 140 decibels, which will expose the position of the soldier (shooter). The muzzle flame is particularly obvious at night, and the muzzle noise can also cause hearing damage to the soldier (shooter), and the concealment of the firearm is poor. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a muzzle suppressor that can suppress the muzzle flame and noise when a firearm is fired. When the gunpowder gas flows through the suppressor, it expands and repeatedly reflects in the suppressor, reducing the flow rate and pressure, reducing the difference between the gunpowder gas pressure and the atmospheric pressure, thereby reducing the muzzle aerodynamic noise; at the same time, the suppressor prolongs the time for the gunpowder gas to flow out of the muzzle, allowing the gunpowder gas to fully burn and reducing the flame generated by the gunpowder gas at the muzzle.

[0004] A muzzle suppressor of the present invention comprises a joint, a suppressor outer tube threadedly connected to the joint, and a bottom cover threadedly connected to the suppressor outer tube, which are sequentially arranged from back to front. The joint is threadedly connected to a gun barrel, and a suppressor inner tube is arranged between the joint and the bottom cover. The suppressor inner tube is located inside the suppressor outer tube, and the rear end face of the suppressor inner tube abuts against the front end face of the joint, and the front end face abuts against the rear end face of the bottom cover. A plurality of through holes a are arranged on the wall of the suppressor inner tube in the circumferential direction, and a damper is sleeved in each through hole a. The head of the damper passes through the through hole a and extends into the cavity of the suppressor inner tube, and the tail is arranged between the suppressor inner tube and the suppressor outer tube and abuts against each other, and is used for repeatedly diverting and reflecting the gunpowder gas entering the suppressor inner tube, reducing the flow rate and pressure of the gunpowder gas, and prolonging the time for the gunpowder gas to flow out of the muzzle, so as to suppress the noise during shooting.

[0005] The damper head is a polyhedral structure, and the tail is provided with a first step and a second step, the outer circumferential surface of the first step is a first cylindrical surface, the outer circumferential surface of the second step is a second cylindrical surface, and the tail end surface of the damper is an arc surface, the first cylindrical surface of the damper is in close contact with the hole wall of the inner cylinder through hole a of the suppressor, the end surface of the second step of the damper is installed in abutment with the outer cylinder wall of the inner cylinder of the suppressor, and the arc surface of the tail end surface of the damper is installed in abutment with the inner cylinder wall of the outer cylinder of the suppressor;

[0006] The connector is tubular, with an internal thread at the rear end being threadedly connected to the gun barrel, and an external thread at the outer peripheral surface of the front end being threadedly connected to the outer tube of the suppressor;

[0007] The outer cylinder of the suppressor is a thin-walled cylinder, and both the front and rear ends are provided with internal threads.

[0008] Furthermore, the inner cylinder of the suppressor is a thin-walled cylinder, and four through holes a are arranged on the cylinder wall along the circumferential direction and a plurality of through holes are arranged along the axial direction, and the through holes a adjacent to each other in the axial direction are staggered in the circumferential direction.

[0009] Furthermore, seven through holes a are arranged on the wall of the inner cylinder of the suppressor along the axial direction, and the staggered angle in the circumferential direction is 45°.

[0010] Furthermore, the polyhedral structure of the damper head is a regular tetrahedron structure, the axes of the first cylindrical surface and the second cylindrical surface of the damper coincide with each other, the axis of the arc surface at the tail end of the damper is perpendicular to the axis of the first cylindrical surface, a plane of the regular tetrahedron coincides with the first step end face, and the first edge of the regular tetrahedron is coplanar with the axis of the arc surface at the tail end.

[0011] Furthermore, when the damper is installed in the through hole a of the suppressor inner tube, the first edge of the regular tetrahedron of the damper head is installed toward the muzzle.

[0012] Furthermore, the bottom cover is tubular, and an external thread is provided on the outer peripheral surface of the bottom cover, which is screwed to the outer tube of the suppressor, and a through hole b for the projectile to pass through is provided at the center of the bottom cover.

[0013] Beneficial effects of the present invention:

[0014] 1. The present invention provides a plurality of through holes a on the circumferential surface of the inner tube of the suppressor, and provides a damper in each through hole a. The damper head extends into the cavity of the inner tube of the suppressor, and adopts a polyhedron structure. One of the edges of the polyhedron is installed toward the muzzle. The damper adopts this structure to expand and repeatedly reflect the flow of gunpowder gas in the suppressor when it flows through the suppressor, thereby improving the reflection effect, reducing the flow rate and pressure of gunpowder gas, and reducing the difference between the gunpowder gas pressure and the atmospheric pressure, thereby reducing the muzzle aerodynamic noise;

[0015] 2. The number of dampers provided in the present invention is moderate, which can satisfy the suppressor's suppressing effect on gunpowder gas without excessively increasing the weight of the suppressor, thus avoiding the influence of the suppressor on the maneuverability of the firearm;

[0016] 3. By setting a damper in the suppressor, the time for the gunpowder gas to flow out of the muzzle is prolonged, so that the gunpowder gas can be fully burned, the flame generated by the gunpowder gas at the muzzle is reduced, and the noise reduction effect is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A cross-sectional view of the present invention connected to a gun barrel;

[0018] Figure 2 for Figure 1 Middle AA section view;

[0019] Figure 3 for Figure 1 Middle BB section view;

[0020] Figure 4 is a cross-sectional view of the joint;

[0021] Figure 5 is a cross-sectional view of the suppressor outer cylinder;

[0022] Figure 6 is a cross-sectional view of the bottom cover;

[0023] Figure 7 is a cross-sectional view of the suppressor inner cylinder;

[0024] Figure 8 is a schematic diagram of the structure of the damper;

[0025] Fig. 9 is a top view of the damper;

[0026] Fig.10 It is the left side view of the damper;

[0027] Fig.11 is the main view of the damper;

[0028] In the attached figure: 1-gun barrel, 2-joint, 3-suppressor outer tube, 4-bottom cover, 41-through hole b,

[0029] Suppressor inner tube, 51-through hole a,

[0030] Damper, 61-polyhedron, 62-first step, 63-second step, 64-first cylindrical surface, 65-second cylindrical surface, 66-arc surface, 67-end surface, 68-first edge,

[0031] Internal thread, 8-external thread. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0033] In this embodiment, the front end is taken as the direction of the firearm shooting.

[0034] like Figures 1 to 11A muzzle suppressor shown is threadedly connected to a gun barrel 1, and comprises a joint 2, a suppressor outer tube 3 threadedly connected to the joint 2, and a bottom cover 4 threadedly connected to the suppressor outer tube 3, which are arranged in sequence from back to front. A suppressor inner tube 5 is arranged between the joint 2 and the bottom cover 4. The suppressor inner tube 5 is located in the suppressor outer tube 3. The rear end face of the suppressor inner tube 5 abuts against the front end face of the joint 2, and the front end face abuts against the rear end face of the bottom cover 4. A plurality of through holes a51 are circumferentially arranged on the wall of the suppressor inner tube 5, and a damper 6 is sleeved in each through hole a51. The head of the damper 6 passes through the through hole a51 and extends into the cavity of the suppressor inner tube 5, and the tail is arranged between the suppressor inner tube 5 and the suppressor outer tube 3 and is installed in abutment with each other.

[0035] like Figure 4 As shown, in this embodiment, the connector 2 is tubular, with an internal thread 7 screwed to the gun barrel 1 at the rear end, and an external thread 8 screwed to the suppressor outer tube 3 at the front end outer peripheral surface.

[0036] like Figure 5 As shown, in this embodiment, the suppressor outer tube 3 is a thin-walled tube, and both the front and rear ends are provided with internal threads 7, which are threadedly connected to the bottom cover 4 and the joint 2 respectively.

[0037] like Figure 6 As shown, the bottom cover 4 is tubular, and an external thread 8 is provided on the outer peripheral surface of the bottom cover 4, which is screwed to the suppressor outer tube 3, and a through hole b41 for the projectile to pass through is provided at the center of the bottom cover 4.

[0038] like Figure 7 As shown, the suppressor inner tube 5 is a thin-walled tube, and four through holes a51 are arranged on the tube wall along the circumferential direction, and a number of through holes a51 are arranged along the axial direction. In this embodiment, the number of through holes a51 arranged along the axial direction is 7, and the axially adjacent through holes a51 are staggered at 45° in the circumferential direction.

[0039] like Figure 8-Figure 11 As shown, in order to improve the reflection effect of the suppressor, the head of the damper 6 is a polyhedron 61 structure, and the tail is provided with a first step 62 and a second step 63. The outer circumferential surface of the first step 62 is a first cylindrical surface 64, and the outer circumferential surface of the second step 63 is a second cylindrical surface 65. The tail end surface of the damper 6 is an arc surface 66. The first cylindrical surface 64 of the damper is close to the hole wall of the inner tube through hole a51 of the suppressor, the end surface 67 of the second step of the damper is installed in contact with the outer tube wall of the inner tube 5 of the suppressor, and the arc surface 66 of the tail end surface of the damper is installed in contact with the inner tube wall of the outer tube of the suppressor.

[0040] In this embodiment, the polyhedron 61 structure at the head of the damper 6 adopts a regular tetrahedron structure, the axis of the first cylindrical surface 64 of the damper coincides with the axis of the second cylindrical surface 65, the axis of the arc surface 66 at the tail end of the damper is perpendicular to the axis of the first cylindrical surface 64, a plane of the regular tetrahedron coincides with the end face of the first step 62, and the first edge 68 of the regular tetrahedron is coplanar with the axis of the arc surface 66 at the tail end.

[0041] When the damper 6 is installed in the through hole a51 of the suppressor inner tube, the first edge 68 of the regular tetrahedron of the damper head is installed toward the muzzle.

[0042] In this embodiment, the number of dampers 6 can be set as needed to meet different suppression effects. The more dampers 6 there are, the stronger the suppression effect is. However, the longer the length of the suppressor is, the heavier the weight is. After the firearm is equipped, the greater the impact on the maneuverability of the firearm is. The fewer dampers 6 there are, the weaker the suppression effect is. However, the shorter the length of the suppressor is, the lighter the weight is. After the firearm is equipped, the smaller the impact on the maneuverability of the firearm is. Therefore, in order to balance the suppression effect of the suppressor and the impact on the maneuverability of the firearm, in this embodiment, the number of dampers 6 is preferably 28, which not only meets the suppression effect of the suppressor on gunpowder gas, but also does not excessively increase the weight of the suppressor, thereby avoiding the impact of the suppressor on the maneuverability of the firearm.

[0043] When shooting a firearm equipped with the above suppressor, after the projectile exits the muzzle of the gun barrel, it passes through the joint, the inner tube of the suppressor, and the center hole of the bottom cover in sequence. The gunpowder gas at the muzzle of the gun barrel enters the suppressor through the inner hole of the joint, expands and flows forward, and is repeatedly diverted and reflected by the polyhedron of the damper until the gunpowder gas reaches the bottom cover after passing through all dampers, and finally flows out of the suppressor through the through hole b in the middle of the bottom cover.

[0044] The suppressor of the present invention reduces the flow rate and pressure of gunpowder gas, reduces the difference between the gunpowder gas pressure and the atmospheric pressure, and thus reduces the aerodynamic noise at the muzzle; at the same time, the suppressor prolongs the time for the gunpowder gas to flow out of the muzzle, so that the gunpowder gas can be fully burned, and the flame generated by the gunpowder gas at the muzzle is reduced, resulting in a significant noise reduction effect.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A muzzle suppressor, comprising a joint, a suppressor outer tube threadedly connected to the joint, and a bottom cover threadedly connected to the suppressor outer tube, which are arranged in sequence from back to front, wherein the joint is threadedly connected to a gun barrel, an suppressor inner tube is arranged between the joint and the bottom cover, and the suppressor inner tube is located inside the suppressor outer tube, and is characterized in that: The rear end face of the suppressor inner tube abuts against the front end face of the joint, and the front end face abuts against the rear end face of the bottom cover. A plurality of through holes a are provided on the wall of the suppressor inner tube along the circumferential direction, and a damper is sleeved in each through hole a. The head of the damper passes through the through hole a and extends into the cavity of the suppressor inner tube, and the tail is provided between the suppressor inner tube and the suppressor outer tube and abuts against each other. The damper head is a polyhedral structure, and the tail is provided with a first step and a second step, the outer circumferential surface of the first step is a first cylindrical surface, the outer circumferential surface of the second step is a second cylindrical surface, and the tail end surface of the damper is an arc surface, the first cylindrical surface of the damper is in close contact with the hole wall of the inner cylinder through hole a of the suppressor, the end surface of the second step of the damper is installed in abutment with the outer cylinder wall of the inner cylinder of the suppressor, and the arc surface of the tail end surface of the damper is installed in abutment with the inner cylinder wall of the outer cylinder of the suppressor; The connector is tubular, with an internal thread at the rear end being threadedly connected to the gun barrel, and an external thread at the outer peripheral surface of the front end being threadedly connected to the outer tube of the suppressor; The outer cylinder of the suppressor is a thin-walled cylinder, and internal threads are arranged at the front and rear ends.

2. A muzzle suppressor according to claim 1, characterized in that: The inner cylinder of the suppressor is a thin-walled cylinder, and four through holes a are arranged on the cylinder wall along the circumferential direction and a plurality of through holes are arranged along the axial direction. The through holes a adjacent to each other in the axial direction are staggered in the circumferential direction.

3. A muzzle suppressor according to claim 2, characterized in that: There are 7 through holes a on the wall of the inner cylinder of the suppressor along the axial direction, and the staggered angle in the circumferential direction is 45°.

4. A muzzle suppressor according to claim 1, characterized in that: The polyhedral structure of the damper head is a regular tetrahedron structure, the axes of the first cylindrical surface and the second cylindrical surface of the damper coincide with each other, the axis of the arc surface at the tail end of the damper is perpendicular to the axis of the first cylindrical surface, a plane of the regular tetrahedron coincides with the first step end face, and the first edge of the regular tetrahedron is coplanar with the axis of the arc surface at the tail end.

5. A muzzle suppressor according to claim 4, characterized in that: When the damper is installed in the through hole a of the suppressor inner tube, the first edge of the regular tetrahedron of the damper head is installed toward the muzzle.

6. A muzzle suppressor according to claim 1, characterized in that: The bottom cover is tubular, and an external thread is arranged on the outer peripheral surface of the bottom cover, which is screwed to the outer tube of the suppressor, and a through hole b for the projectile to pass through is arranged at the center of the bottom cover.

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