CN110425929A - A kind of silencing means of automatic weapon - Google Patents
A kind of silencing means of automatic weapon Download PDFInfo
- Publication number
- CN110425929A CN110425929A CN201910873790.7A CN201910873790A CN110425929A CN 110425929 A CN110425929 A CN 110425929A CN 201910873790 A CN201910873790 A CN 201910873790A CN 110425929 A CN110425929 A CN 110425929A
- Authority
- CN
- China
- Prior art keywords
- noise
- sound
- absorptive object
- damping bowl
- hush pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/30—Silencers
Abstract
The present invention provides a kind of silencing means of automatic weapon, including noise-damping bowl, sound-absorptive object and hush pipe, noise reduction tube rear end is equipped with locking cylinder, muzzle connector is arranged in locking cylinder, muzzle connector front end is equipped with noise-damping bowl, noise-damping bowl is slidably packed into sound-absorptive object, noise-damping bowl front end is connect with sound-absorptive object screw threads for fastening, it is hollow shaft in the middle part of noise-damping bowl, hollow shaft surface radially offers several slots, slot is connected to hollow shaft inner hole, and hollow shaft is equipped with several annulars and shuts off disk, and two neighboring annular, which is shut off, to be formed annular and shut off expanding chamber between disk and sound-absorptive object；Sound-absorptive object is slidably packed into hush pipe, sound-absorptive object front end is connect with hush pipe and noise-damping bowl screw threads for fastening respectively, sound-absorptive object surface is equipped with variable-pitch screw guiding rib and several apertures, the interval of aperture becomes larger from the front to the back with spirally-guided muscle, spiral airflow channel is formed between spirally-guided muscle and hush pipe, it can significantly reduce muzzle noise, it is obvious to reduce muzzle flash, muzzle cigarette effect.
Description
Technical field
The invention belongs to firearms technical field, specially a kind of silencing means of automatic weapon.
Background technique
Automatic weapon silencing means reduces the device of muzzle flash and muzzle cigarette as a kind of reduction weapon noise.For opening up
Automatic weapon tactical qualities are opened up, are had for investigator, special force, police's execution anti-terrorism, hostile takedown, hidden killing important
Meaning.
Currently, mainly having four classes by the principle for reducing noise: resistance noise reduction device, reactive muffling device, aperture diffusion disappear
Acoustic device and loss silencing apparatus.Wherein resistance noise reduction device, advantage are significant to the sound effect for absorbing medium-high frequency section, processing system
It makes simply, disadvantage is poor to low frequency noise elimination effect；Reactive muffling device centering effect of low-frequency sound absorption is significant, and does not have to sound-absorbing material；
Aperture spreads silencing apparatus to Low Medium Frequency broadband acoustic attenuation performance, and small aperture can improve acoustic absorptivity, and low porosity can increase
The width of sound sucting band, orifice plate depth can change the position at resonance sound-absorbing peak.Design is tight, resistance damage is small, and high temperature resistant, service life are long；
Loss silencing apparatus by nonlinear acoustic resistance sound energy consumption or being reloaded into porous heat-absorbing material after perforated plate, make powder gas into
One step is cooling, depressurizes.
In conjunction with the limitation that existing automatic weapon tactical mission and automatic weapon structure snd size require, according to single
The silencing means of principle of noise reduction design be not able to satisfy its requirement, therefore existing silencing means is mostly compound.Generally
Preceding several layers of using resistance, aperture diffusion and loss-type structure, final layer is using resistance noise reduction structure.It is existing to be used for automatic weapon
Silencing means noise-reducing, fall fire flame low efficiency, the concealment that firearms use is poor, be not able to satisfy weapon user use need
It asks.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of silencing means of automatic weapon, can significantly reduce muzzle
Noise, reduction muzzle flash, muzzle cigarette effect are obvious, smaller on the accuracy of fire of automatic weapon and closeness influence, improve
The concealment that firearms use.
A kind of silencing means of automatic weapon of the present invention, including set gradually from inside to outside noise-damping bowl, noise reduction
Body and hush pipe, the rear end of the hush pipe are equipped with locking cylinder, muzzle connector are arranged in the locking cylinder, for containing firearms
Thorax mouth simultaneously connects locking firearms, and the front end of muzzle connector is equipped with noise-damping bowl, the muzzle connector, noise-damping bowl, sound-absorptive object and
The axial line of hush pipe is overlapped, and the noise-damping bowl is slidably packed into sound-absorptive object, and the front end of noise-damping bowl is equipped with external screw thread, and is disappeared
The middle part of the connection of sound body screw threads for fastening, noise-damping bowl is hollow shaft, and the hollow shaft surface radially offers several slots, described
Slot is connected to the inner hole of hollow shaft, be additionally provided in the hollow shaft it is several shut off disk in tapered annular, two adjacent rings
Shape, which is shut off, to be formed annular and shuts off expanding chamber between disk and sound-absorptive object；
The sound-absorptive object is slidably packed into hush pipe, and the front end of sound-absorptive object is equipped with external screw thread and internal screw thread, respectively with
Hush pipe is connected with noise-damping bowl screw threads for fastening, and sound-absorptive object surface is equipped with variable-pitch screw guiding rib and several apertures, the aperture
Interval become larger from the front to the back with spirally-guided muscle, spiral airflow channel is formed between spirally-guided muscle and hush pipe,
The spirally-guided muscle is used to increase the length of powder gases flow direction, reduces the flow velocity and pressure of powder gases, and the aperture is used
In transfer noise frequency range；
After bullet projects, gas is discharged to annular and is shut off expanding chamber by noise-damping bowl hollow shaft inner hole by powder gases, by
Grade is shut off expansion decompression, and fraction enters sound-absorptive object spiral channel and flows out forward, with air-flow phase interaction step by step in noise-damping bowl
With when spraying powder gases from silencing means, the air-flow velocity and pressure of powder gases are greatly reduced, and are made an uproar when realizing to shooting
The inhibition of sound.
Further, the front end of the sound-absorptive object is equipped with limited step, passes through limit when sound-absorptive object is threadedly coupled with hush pipe
Position step limit.
Further, the diameter of the noise-damping bowl hollow shaft inner hole is greater than 1.2 times of bullet diameter.It can guarantee that bullet is smooth
Pass through noise-damping bowl inner hole.
Further, the roughness on the inner hole of the sound-absorptive object, hush pipe and noise-damping bowl and surface is Ra0.8 or more.It protects
Demonstrate,prove the service life and assembly reliability of product.
Further, the sound-absorptive object and hush pipe are thin-walled revolution workpiece, and noise-damping bowl is integrally formed design.Make gunpowder
Gas is small on bullet influence, and weapon-shooting closeness and accuracy are unaffected.
Beneficial effects of the present invention:
1, the present invention opens up several slots and is equipped with and shuts off disk in tapered annular on the hollow shaft surface of noise-damping bowl, slot
It is connected to hollow shaft inner hole, two adjacent annulars, which are shut off, to be formed annular and shut off expanding chamber between disk and sound-absorptive object, bullet shooting
Afterwards, gas is discharged to annular by noise-damping bowl inner hole and is shut off expanding chamber by powder gases, and multiple expanding chambers that shut off can be by gunpowder
The thermal energy of gas discharges step by step, reduces gas pressure intensity and flow velocity, and noise reduction effect is significant, reaches 16.5db, compared to generic
The 12db of silencing means improves 37.5%.
2, aperture and variable-pitch screw guiding rib be set on sound-absorptive object surface, and hole separation with spirally-guided muscle forward
It becomes larger, the setting of spirally-guided muscle increases the length of gas flow, and the setting of aperture is conducive to shift noise frequency range.
3, the airflow channel of two layers of different structure is arranged in silencing means, and formation annular is shut off swollen between noise-damping bowl and sound-absorptive object
Swollen room forms spiral airflow channel between sound-absorptive object and hush pipe, sound-absorptive object outer wall is equipped with many apertures and communicates with hush pipe,
After high pressure gas goes out muzzle, shut off step by step expansion decompression by the annular expanding chamber that shuts off, meanwhile, fraction is entering first order ring
Shape is shut off after expanding chamber decompression, is flowed out forward into the spiral airflow channel between sound-absorptive object and hush pipe, with noise-damping bowl and
The air-flow interaction that annular retention expanding chamber between sound-absorptive object flows out step by step, further decreases flow velocity and pressure.
4, noise-damping bowl is designed using multiple integral, and powder gases influence small, weapon-shooting closeness and accurate on bullet
Substantially without influence, passed through silencing means production evaluation testing and the test of automatic weapon matching proves degree.
5, silencing means long service life of the invention is tested by automatic weapon matching, reaches 5000 hairs or more,
It is sent out compared to generic silencing means 4000, improves 25%.
6, silencing means maintenance of the invention is convenient, and without dismantling, daily maintenance can be completed using hairbrush.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is cross-sectional view of the invention；
Fig. 3 is the structural schematic diagram of hush pipe；
Fig. 4 is the structural schematic diagram of sound-absorptive object；
Fig. 5 is the structural schematic diagram of noise-damping bowl；
Fig. 6 is gas flow schematic diagram of the invention；
In attached drawing: 1- hush pipe, 2- sound-absorptive object, 21- aperture, 22- variable-pitch screw guiding rib,
3- noise-damping bowl, 31- hollow shaft, 32- annular are shut off disk, 33- slot,
4- annular is shut off expanding chamber, 5- locking cylinder, 6- muzzle connector
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawing.
In the present embodiment, using small arms firing direction as front end,
A kind of automatic weapon silencing means as shown in Figures 1 to 6, including set gradually from inside to outside noise-damping bowl 3, disappear
Sound body 2 and hush pipe 1, the rear end of the hush pipe 1 are equipped with locking cylinder 5, are arranged muzzle connector 6 in the locking cylinder 5, are used for
Contain firearms thorax mouth and connect locking firearms, 6 front end of muzzle connector is equipped with noise-damping bowl 3, the muzzle connector 6, noise-damping bowl
3, the axial line of sound-absorptive object 2 and hush pipe 1 is overlapped, and the noise-damping bowl 3 is slidably packed into sound-absorptive object 2, the front end of noise-damping bowl 3
It equipped with external screw thread, is connect with 2 screw threads for fastening of sound-absorptive object, the middle part of noise-damping bowl is hollow shaft 31, and 31 surface of hollow shaft is radially opened
Equipped with several slots 33, slot 33 is connected to the inner hole of hollow shaft, and it is in that tapered annular is shut off that hollow shaft 31, which is equipped with several,
Disk 32, two adjacent annulars, which are shut off, to be formed annular and shuts off expanding chamber 4 between disk 32 and sound-absorptive object 2, and each annular is shut off dish type
Shut off face at powder gases, when powder gases pass through channel, section becomes larger and becomes smaller suddenly, and the sound wave of some frequency range is carried out
Feedback generates resonance.
To guarantee that bullet passes through noise-damping bowl inner hole, the diameter of noise-damping bowl hollow shaft inner hole is greater than the 1.2 of bullet diameter
Times.
In order to guarantee the service performance of product, influence of the powder gases to bullet is reduced, the noise-damping bowl in the present embodiment is adopted
With multilayer unitary design mode, the closeness and accuracy of weapon-shooting ensure that.
In the present embodiment, the sound-absorptive object 2 is slidably packed into hush pipe 1, and the front end of sound-absorptive object 2 is equipped with external screw thread
And internal screw thread, it is connect respectively with hush pipe 1 and 3 screw threads for fastening of noise-damping bowl, 2 surface of sound-absorptive object is equipped with variable-pitch screw guiding rib
22 and several apertures 21, the interval of the aperture 21 become larger from the front to the back with spirally-guided muscle 22, spirally-guided muscle 22 with
Spiral airflow channel is formed between hush pipe 1, spirally-guided muscle 22 can effectively increase the length of powder gases flow direction, reduce fire
The flow velocity and pressure of medicine gas, aperture 21 have the function of noise frequency range transfer, powder gases from annular shut off expanding chamber enter
After aperture, the major part of jet noise is shifted as supersonic frequency by intensive aperture, as gas is to front transfer, by more
The spray of grade aperture forms the spray of large area low speed after converging, the noise generated will decrease；
In the present embodiment, for guarantee product service life and assembly reliability, the noise-damping bowl, the sound-absorptive object and
The inner hole and surface roughness requirements Ra0.8 or more of the hush pipe hush pipe and disappear for the weight for mitigating silencing means
Sound body is all made of thin-walled revolution workpiece.
The working principle of the invention:
After bullet projects, powder gases flow out muzzle, shut off expanding chamber step by step by the annular between noise-damping bowl and sound-absorptive object
Shut off expansion decompression, meanwhile, part powder gases are after expanding chamber decompression of shutting off into the first order, into sound-absorptive object and hush pipe
Between spiral airflow channel flow out forward, between noise-damping bowl and sound-absorptive object shut off step by step expanding chamber outflow gas phase
Interaction further decreases flow velocity and pressure, reduces the peak-peak of noise, achievees the purpose that noise elimination.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that；It still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover within the scope of the claims and the description of the invention.
Claims (5)
1. a kind of silencing means of automatic weapon, described including the noise-damping bowl, sound-absorptive object and hush pipe set gradually from inside to outside
The rear end of hush pipe is equipped with locking cylinder, muzzle connector is arranged in the locking cylinder, for containing firearms thorax mouth and connecting lock
The front end of tight firearms, muzzle connector is equipped with noise-damping bowl, the axle center of the muzzle connector, noise-damping bowl, sound-absorptive object and hush pipe
Line is overlapped, it is characterised in that: the noise-damping bowl is slidably packed into sound-absorptive object, and the front end of noise-damping bowl is equipped with external screw thread, and is disappeared
The middle part of the connection of sound body screw threads for fastening, noise-damping bowl is hollow shaft, and the hollow shaft surface radially offers several slots, described
Slot is connected to the inner hole of hollow shaft, be additionally provided in the hollow shaft it is several shut off disk in tapered annular, two adjacent rings
Shape, which is shut off, to be formed annular and shuts off expanding chamber between disk and sound-absorptive object；
The sound-absorptive object is slidably packed into hush pipe, and the front end of sound-absorptive object is equipped with external screw thread and internal screw thread, respectively with noise reduction
Cylinder is connected with noise-damping bowl screw threads for fastening, and sound-absorptive object surface is equipped with variable-pitch screw guiding rib and several apertures, between the aperture
It is become larger from the front to the back every with spirally-guided muscle, forms spiral airflow channel between spirally-guided muscle and hush pipe, it is described
Spirally-guided muscle is used to increase the length of powder gases flow direction, reduces the flow velocity and pressure of powder gases, the aperture is for turning
Move noise frequency range；
After bullet projects, gas is discharged to annular and is shut off expanding chamber, cut step by step by noise-damping bowl hollow shaft inner hole by powder gases
Expansion decompression is flowed, fraction enters sound-absorptive object spiral channel and flows out forward, with air-flow interaction step by step in noise-damping bowl, makes
When powder gases are sprayed from silencing means, the air-flow velocity and pressure of powder gases are greatly reduced, and realize noise when to shooting
Inhibit.
2. a kind of silencing means of automatic weapon according to claim 1, it is characterised in that: the front end of the sound-absorptive object is set
There is limited step, is limited when sound-absorptive object is threadedly coupled with hush pipe by limited step.
3. a kind of silencing means of automatic weapon according to claim 1, it is characterised in that: in the noise-damping bowl hollow shaft
The diameter in hole is greater than 1.2 times of bullet diameter.
4. a kind of silencing means of automatic weapon according to claim 1, it is characterised in that: the sound-absorptive object, hush pipe
It is Ra0.8 or more with the inner hole of noise-damping bowl and the roughness on surface.
5. a kind of silencing means of automatic weapon according to claim 1 to 4, it is characterised in that: the sound-absorptive object and
Hush pipe is thin-walled revolution workpiece, and noise-damping bowl is integrally formed design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873790.7A CN110425929A (en) | 2019-09-17 | 2019-09-17 | A kind of silencing means of automatic weapon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873790.7A CN110425929A (en) | 2019-09-17 | 2019-09-17 | A kind of silencing means of automatic weapon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110425929A true CN110425929A (en) | 2019-11-08 |
Family
ID=68418180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910873790.7A Pending CN110425929A (en) | 2019-09-17 | 2019-09-17 | A kind of silencing means of automatic weapon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425929A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318876A (en) * | 2020-10-12 | 2021-02-05 | 李冉 | 3D prints silencing device |
| CN113237381A (en) * | 2021-05-16 | 2021-08-10 | 南京理工大学 | Electromagnetic rail gun arc extinction and silencing device |
| WO2023283007A3 (en) * | 2021-06-04 | 2023-04-27 | Berg Daren | Firearm noise suppressor |
| WO2023237819A1 (en) * | 2022-06-10 | 2023-12-14 | Jägear Oy | Pressure controlling structure and method for controlling pressure |
-
2019
- 2019-09-17 CN CN201910873790.7A patent/CN110425929A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318876A (en) * | 2020-10-12 | 2021-02-05 | 李冉 | 3D prints silencing device |
| CN113237381A (en) * | 2021-05-16 | 2021-08-10 | 南京理工大学 | Electromagnetic rail gun arc extinction and silencing device |
| CN113237381B (en) * | 2021-05-16 | 2023-07-28 | 南京理工大学 | Arc extinction and silencing device of electromagnetic track gun |
| WO2023283007A3 (en) * | 2021-06-04 | 2023-04-27 | Berg Daren | Firearm noise suppressor |
| WO2023237819A1 (en) * | 2022-06-10 | 2023-12-14 | Jägear Oy | Pressure controlling structure and method for controlling pressure |
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