Bore opening brake

Abstract

The utility model relates to the technical field of firearm accessories, and particularly discloses a muzzle brake which comprises a brake body, the brake body is composed of an installation pipe and an extension pipe which are fixedly communicated with each other, the installation pipe is used for being connected with a gun barrel, and the pipe diameter of the installation pipe is larger than that of the extension pipe; a plurality of first exhaust holes which are vertical to the axis of the gun barrel and are through up and down are formed in the mounting pipe and are used for inhibiting the vertical upward jumping of the gun barrel; the extension pipe is provided with a plurality of second exhaust holes which horizontally and laterally penetrate through the extension pipe and is used for guiding fuel gas to expand step by step; the brake is divided into the installation pipe and the extension pipe, the installation pipe is divided into an upper half pipe and a lower half pipe which are symmetrical through the transverse opening, the vertical exhaust holes are formed to restrain a muzzle from jumping upwards, the extension pipe is provided with four stages of independent cavities, and the lateral exhaust holes of the cavities guide fuel gas to expand step by step through the gradually-shrinking hole diameter to balance horizontal recoil force. By means of the multi-stage chamber layered pressure reduction and composite angle exhaust design, gas energy is released in stages.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of gun accessory technology, specifically relates to a muzzle brake. BACKGROUND

[0002] The muzzle brake is a key functional component for reducing the recoil and the muzzle jump in the field of guns, and its core role is to guide the high-temperature and high-pressure gunpowder gas generated when the bullet is fired, utilize the directional discharge and energy consumption of the gas to offset the reaction force of the gun. The traditional muzzle brake usually adopts a single-chamber structure, disperses the gas through the lateral exhaust holes, thereby partially reduces the recoil and suppresses the muzzle jump, but its design is limited by the gas energy utilization efficiency and the structural complexity, and it is difficult to achieve a significant breakthrough in the recoil control in high-power weapons (such as sniper rifles).

[0003] However, the existing muzzle brake still has obvious deficiencies when dealing with high-power ammunition: after the bullet is fired, the gas is sprayed out from the muzzle at a high temperature of about 3000 DEG C and a high pressure of 3000-4000 psi, and the resulting reaction force not only causes the gun to recoil violently, but also causes the muzzle to jump due to the fact that the barrel axis is higher than the shooter's shoulder point. Such problems are particularly prominent in high-precision shooting or continuous combat, and seriously restrict the shooting accuracy and the shooter's control stability. Although some muzzle brakes improve the performance by increasing the number of chambers, the traditional multi-chamber design still cannot balance the momentum offsetting needs in the vertical and horizontal directions due to the single exhaust hole layout and the insufficient control of the gas pressure gradient, and is accompanied by the side effects of noise enhancement and dust diffusion, and it is difficult to meet the comprehensive requirements of extreme performance and tactical adaptability in the actual combat tasks of the police. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a muzzle brake to solve the problems of insufficient suppression of the recoil and the muzzle jump of the gun and poor shooting stability of the existing muzzle brake.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A muzzle brake, comprising: a brake main body composed of a mounting pipe and an extension pipe fixed and communicated with each other, the mounting pipe being used for connecting the barrel and having a pipe diameter larger than that of the extension pipe;

[0007] The mounting pipe is provided with a plurality of first exhaust holes perpendicular to the barrel axis and penetrating up and down, for suppressing the vertical jump of the barrel;

[0008] The extension pipe is provided with a plurality of second exhaust holes horizontally and laterally penetrating, for guiding the step-by-step expansion of the gas.

[0009] Preferably, the extension pipe is provided with a plurality of second exhaust holes sequentially arranged from one end close to the mounting pipe to the other end, and the second exhaust holes are gradually reduced in diameter from front to back, forming a tapered structure.

[0010] Preferably, the plurality of second exhaust holes are formed into independent chambers, and each of the second exhaust holes is composed of two symmetrically arranged through holes, the two through holes respectively extend through the extension pipe along the horizontal lateral direction, and a preset included angle is arranged between the axis of the through hole and the axis of the extension pipe, forming a diagonal exhaust passage.

[0011] Preferably, the mounting pipe is provided with a horizontal opening along the horizontal center line at the end surface away from the extension pipe, the horizontal opening extends along the barrel axis to the extension pipe, and the mounting pipe is divided into symmetric upper half pipe and lower half pipe.

[0012] Preferably, the upper half pipe is symmetrically provided with a plurality of vertically penetrating first exhaust holes with the barrel axis as the center line, the lower half pipe is provided with the same number of first exhaust holes corresponding to the positions of the first exhaust holes of the upper half pipe, and the first exhaust holes of the upper half pipe are larger in diameter than the first exhaust holes of the lower half pipe.

[0013] Preferably, the mounting pipe and the extension pipe are made of high-temperature-resistant alloy material.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] By arranging four independent chambers in the extension pipe of the recoil brake, the high-pressure gas is expanded step by step through the exhaust holes with specific angles in each chamber, the energy is released in stages through the layered pressure reduction, and the high-pressure gas is discharged laterally or rearward at low speed after consuming part of the kinetic energy in each chamber, so that the momentum compensation effect is maximized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a top view of the utility model;

[0017] Figure 2 is a bottom view of the utility model;

[0018] Figure 3 is a side view of the utility model;

[0019] Figure 4 is a top view of the utility model;

[0020] Figure 5The utility model discloses a top view sectional view;

[0021] In the drawing: 1, install pipe, 11, upper half pipe, 12, lower half pipe, 2, extension pipe, 3, first exhaust hole, 4, second exhaust hole, 41, through -hole, 5, transverse opening. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0023] In the description of the utility model, it is understood that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] Embodiment one:

[0025] Please refer to Figures 1-5 As shown in the figure, a muzzle brake comprises:

[0026] The brake body is composed of the mounting pipe 1 and the extension pipe 2 fixedly communicated with each other, and the mounting pipe 1 is used for connecting the barrel and has a pipe diameter larger than that of the extension pipe 2;

[0027] The mounting pipe 1 is provided with a plurality of first exhaust holes 3 vertically penetrating the barrel axis and vertically penetrating up and down, which are used for suppressing the vertical jump of the barrel;

[0028] The extension pipe 2 is provided with a plurality of second exhaust holes 4 horizontally and laterally penetrating, which are used for guiding the step-by-step expansion of the combustion gas.

[0029] By Figures 3-5It can be seen that the extension pipe 2 is sequentially provided with a plurality of second exhaust holes 4 from one end close to the mounting pipe 1 to the other end, and the hole diameter of the second exhaust hole 4 gradually decreases from front to back, forming a tapered structure.

[0030] The plurality of second exhaust holes 4 form independent chambers, and the second exhaust hole 4 is composed of two symmetrically arranged through holes 41, the two through holes 41 respectively extend through the extension pipe 2 along the horizontal side, and a preset included angle is arranged between the axis of the through hole 41 and the axis of the extension pipe 2, forming an oblique exhaust passage.

[0031] As can be seen from the above, when the shooter fires the bullet, the high-temperature and high-pressure gunpowder gas (about 3000°C, 3000-4000psi) flows into the mounting pipe 1 of the recoil compensator along with the bullet from the barrel. The diameter of the mounting pipe 1 is designed to be larger than that of the extension pipe 2, which is to provide an initial diffusion space for the gas and to uniformly distribute the gas to the wall of the mounting pipe 1 through the transverse opening 3. At this time, the first exhaust hole 3 on the mounting pipe 1 which is perpendicular to the axis of the barrel and penetrates up and down starts to work: these exhaust holes adopt a symmetrical layout, and the hole diameter gradually increases from the center to both sides, which preferentially guides the high-pressure gas to be sprayed at high speed in the up-down direction. Since the axis of the barrel is higher than the shooter's shoulder pivot point, the reaction force generated by the upward gas injection directly offsets the muzzle lifting moment, reducing the vertical moment by 50%-60%; while the downward gas injection balances the vertical momentum distribution, avoiding the offset of the muzzle due to the disturbance of one-sided gas flow. This design converts the gas energy into reverse thrust through Newton's third law, accurately suppresses the muzzle jump, and significantly improves the shooting stability.

[0032] Subsequently, the remaining gas enters the second exhaust hole 4 area of the extension pipe 2. The extension pipe 2 is sequentially provided with four independent chambers from front to back, and the exhaust hole of each chamber penetrates horizontally and extends obliquely backward at a preset angle (such as 45°-60°). These lateral exhaust holes guide the gas to form an oblique jet flow, and the generated reverse thrust continuously offsets the horizontal recoil force of the firearm, reducing the horizontal recoil force by 40%-50%. At the same time, the hole diameter of the second exhaust hole 4 gradually decreases from front to back (for example, the hole diameter of the front chamber is 3.5mm, and the hole diameter of the rear chamber decreases to 2.0mm in turn), forming a tapered pressure gradient. This design gradually consumes the kinetic energy of the gas by gradually consuming the kinetic energy of the gas, maintains the pressure gradient of the gas, avoids the concentrated release of high-pressure gas in the initial stage, and maximizes the energy utilization efficiency by passing through multiple chambers in stages. The front chamber focuses on releasing the initial impact energy of high-pressure gas, and the rear chamber handles the residual low-pressure gas, and finally discharges the gas flow at low speed and low pressure from the end, effectively preventing the rebound of horizontal recoil force caused by premature energy dissipation.

[0033] Through the above process, the first exhaust hole 3 and the second exhaust hole 4 work together to suppress the vertical jump and the horizontal recoil in stages, respectively. The vertical exhaust hole of the mounting pipe 1 quickly consumes the vertical momentum of the gas, and the tapered horizontal exhaust hole of the extension pipe 2 gradually balances the horizontal recoil force, so that the muzzle is quickly reset after shooting. This design optimizes the structure of the four-chamber silencer, greatly improves the control efficiency of the overall recoil, and reduces the unilateral gas injection intensity through the symmetrical exhaust hole layout, reducing the ear noise by 5-8 decibels. In addition, the closed structure at the bottom suppresses the dust on the ground, further optimizes the shooting experience in the actual combat environment, and ensures the accuracy and stability of the shooter in high-intensity tasks.

[0034] Embodiment two:

[0035] Referring to Figure 3 As shown, the mounting pipe 1 is provided with a transverse opening 5 along the horizontal center line away from the end face of the extension pipe 2, and the transverse opening 5 extends along the barrel axis to the extension pipe 2, dividing the mounting pipe 1 into symmetrical upper half pipe 11 and lower half pipe 12.

[0036] The upper half pipe 11 is symmetrically provided with a plurality of vertical first exhaust holes 3 with the barrel axis as the center line, and the lower half pipe 12 is provided with the same number of first exhaust holes 3 corresponding to the positions of the first exhaust holes 3 of the upper half pipe 11, and the diameter of the first exhaust holes 3 of the upper half pipe 11 is larger than that of the first exhaust holes 3 of the lower half pipe 12.

[0037] As can be seen from the above, the transverse opening 5 evenly distributes the gas to the upper and lower half pipes, avoiding the accumulation of gas on one side in the mounting pipe, ensuring the symmetrical distribution of gas pressure, and providing a basis for the efficient work of the subsequent vertical exhaust hole. Then the gas is discharged through the first exhaust holes 3 distributed in the upper and lower half pipes, and the exhaust holes of the upper half pipe 11 are larger than those of the lower half pipe 12, so that the upper half pipe 11 can preferentially release more high-pressure gas to be sprayed upward, directly offsetting the upward lifting moment generated by the barrel axis being higher than the shooter's shoulder pivot point. Then the gas pressure distribution is balanced through the lower half pipe 12 to avoid excessive downward injection of gas flow causing the muzzle to sink, while stabilizing the momentum offset effect in the vertical direction. By controlling the gas flow through the diameter difference design (upper half pipe large, lower half pipe small), the vertical reverse thrust distribution is optimized, which not only suppresses the muzzle jump, but also avoids excessive suppression causing the muzzle to be pressed down. Moreover, the exhaust holes of the upper and lower half pipes are symmetrically distributed to ensure the symmetrical offset of the gas injection force in the vertical direction, avoiding the deviation of the muzzle caused by unilateral gas flow disturbance.

[0038] Preferably, referring to Figure 1 As shown, the mounting pipe 1 and the extension pipe 2 are made of high-temperature resistant alloy material.

[0039] As can be seen from the above, the high-temperature resistant alloy material is specifically selected from Inconel or 17-4PH stainless steel, such materials have excellent high-temperature resistance and mechanical strength, can maintain structural stability under extreme working conditions of continuous full-automatic firing (such as continuous temperature up to 800 DEG C), avoid performance degradation caused by high-temperature softening or thermal stress deformation. At the same time, the chamber and exhaust hole of the recoil brake are precisely machined by CNC process, ensuring the high consistency of the chamber size, the angle and the aperture gradient (such as the tapered design) of the exhaust hole, such machining precision not only optimizes the uniformity of the gas flow, but also ensures the reliable realization of the multi-stage momentum offset mechanism (such as the synergistic effect of vertical and horizontal exhaust), thereby significantly improving the recoil force control efficiency and the firing stability, meeting the stringent requirements of high-power weapons on the adaptability to extreme environment.

[0040] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A muzzle brake, characterized in that, include: The main body of the muzzle brake consists of an installation tube (1) and an extension tube (2) that are fixedly connected to each other. The installation tube (1) is used to connect the gun barrel and its diameter is larger than that of the extension tube (2). The mounting tube (1) has multiple first exhaust holes (3) that are perpendicular to the barrel axis and extend vertically through it, which are used to suppress the vertical upward movement of the barrel. The extension pipe (2) has multiple horizontally penetrating second exhaust holes (4) for guiding the gas to expand step by step.

2. The muzzle brake according to claim 1, characterized in that: The extension tube (2) has multiple second exhaust holes (4) sequentially opened from one end near the mounting tube (1) to the other end, and the diameter of the second exhaust holes (4) gradually decreases from front to back, forming a tapered structure.

3. A muzzle brake according to claim 2, characterized in that: Multiple second exhaust holes (4) each form an independent chamber. The second exhaust hole (4) is composed of two symmetrically arranged through holes (41). The two through holes (41) penetrate the extension pipe (2) in the horizontal direction, and a preset angle is provided between the axis of the through hole (41) and the axis of the extension pipe (2) to form an oblique exhaust channel.

4. A muzzle brake according to claim 1, characterized in that: The end face of the mounting tube (1) away from the extension tube (2) has a transverse opening (5) along the horizontal center line. The transverse opening (5) extends along the barrel axis toward the extension tube (2), dividing the mounting tube (1) into a symmetrical upper half tube (11) and a lower half tube (12).

5. A muzzle brake according to claim 4, characterized in that: The upper tube (11) has multiple vertically penetrating first exhaust holes (3) symmetrically opened with the gun barrel axis as the center line. The lower tube (12) has the same number of first exhaust holes (3) at the position of the first exhaust holes (3) of the upper tube (11), and the diameter of the first exhaust holes (3) of the upper tube (11) is larger than the diameter of the first exhaust holes (3) of the lower tube (12).

6. A muzzle brake according to claim 1, characterized in that: Both the mounting tube (1) and the extension tube (2) are made of high-temperature resistant alloy material.

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