CN104729358A - Piston of shotgun gas guiding system and method for preventing shotgun gas guiding system glue accumulating thereof - Google Patents
Piston of shotgun gas guiding system and method for preventing shotgun gas guiding system glue accumulating thereof Download PDFInfo
- Publication number
- CN104729358A CN104729358A CN201510136308.3A CN201510136308A CN104729358A CN 104729358 A CN104729358 A CN 104729358A CN 201510136308 A CN201510136308 A CN 201510136308A CN 104729358 A CN104729358 A CN 104729358A
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- China
- Prior art keywords
- piston
- shotgun
- annular groove
- chip removal
- glue
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- Granted
Links
- 239000003292 glue Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 claims description 32
- 229920003023 plastic Polymers 0.000 claims description 32
- 230000000694 effects Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 abstract description 50
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a piston of a shotgun gas guiding system and a method for preventing shotgun gas guiding system glue accumulating thereof. A glue containing groove and a chip removing annular groove which are communicated are formed in the piston at the same time and are used channels for discharging of gas guiding system waste gas and debris. According to the method, the piston is used in the shotgun gas guiding system, shotgun gas guiding system glue accumulating can be prevented, accumulated glue in a gas adjusting system can be discharged, piston moving flexibility and the adjusting comfort of a gas adjuster can be effectively guaranteed, energy stability of an automaton is guaranteed, and meanwhile washing wiping time is shortened.
Description
Technical field
The invention belongs to firearms field, be specifically related to a kind of piston of shotgun gas directing system and prevent the method for shotgun gas directing system gum deposit.
Background technology
No. 12 bore Semi-automatic shotguns use plastic housing shotgun shell, as shown in Figure 1, this bullet bullet is made up of plastics bullet holder 1 and steel ball 2, because its gun pressure is lower, need larger or more gas port could meet automatic machine circulating energy, general gas port aperture is at Φ 2.5 ~ Φ 6 (porous is got little, and single hole is got greatly).As shown in Figure 1, because of gun pressure effect during plastics bullet holder 1 mistake gun barrel air guide aperture 4, form bullet holder protuberance 3, easily sheared by gun barrel air guide aperture 4 herein, the plastic flakes 12 dropped is by the passage between gun barrel air guide aperture 4 to adjuster air guide aperture 5 and enter original volume 14, in the process, because the effect of the HTHP powder gases continued makes plastic flakes melt, the plastics of fusing can be deposited in original volume or enter piston and adjuster, gap between adjuster and gas block, when to lift fire or plastics solidify after cooling firearms, formed so-called " gum deposit "." gum deposit " causes that original volume reduces, the dumb or gas port passage of piston movement is occupied, and cause automatic machine work capacity not enough, even ejection breaks down.When in gas regulating system after transmitting a greater number bullet a large amount of " gum deposit ", lift fire or cool firearms post regulator 7 and rotate dumb, be not easy to regulate.Russia's VEPR shotgun provides and a kind ofly increases glue groove by piston and improve the scheme that gas directing system enters glue, but fails thoroughly to solve the problem of gum deposit.
Summary of the invention
Effectively can not discharge in order to the gas directing system solving above-mentioned shotgun enters glue, affect the problem of shotgun serviceability, the invention provides a kind of piston of shotgun gas directing system and prevent the method for shotgun gas directing system gum deposit.
The present invention is achieved through the following technical solutions:
A kind of piston of shotgun gas directing system, the outer peripheral face of described piston is provided with a chip removal annular groove and some glue grooves, described each glue groove is evenly located at the front portion of piston, piston is run through in the front end of each glue groove, described chip removal annular groove is positioned at the rear of each glue groove, chip removal annular groove extends a circle along piston circumference, and the rear end of each glue groove is all communicated with chip removal annular groove.
In order to change the original volume of adjuster, preferably, the front end face of described piston is provided with one along the axially extended original volume adjusting head of piston, and the radius of original volume adjusting head is less than the distance between each glue groove bottom land to piston axis.
On the one hand, regulating original volume by changing original volume adjusting head structural parameters, making it more reasonable, thus optimizing gas directing system energy; On the other hand, original volume adjusting head can prevent plastic flakes from motion process, colliding the front end face of piston, makes in motion process, be looped around original volume adjusting head surrounding, more easily enters in glue groove, chip removal better effects if.
In order to improve the guide effect of original volume adjusting head to air-flow, plastic flakes, preferably, described original volume adjusting head front end is the guide head of taper.
Be reversed to prevent plastic flakes and suck back in gas directing system original volume, preferably, longitudinally all interlocking with the axial space of piston of described each glue groove, angulation α.
On the one hand, glue groove and piston axis are crisscross arranged and can increase the area of glue groove front end oral area, plastic flakes are more easily entered in glue groove, chip removal better effects if; On the other hand, plastic flakes interacts with the cell wall of chip removal annular groove by after glue groove, changes the position of plastic flakes, makes the length direction of plastic flakes be parallel to the bearing of trend of chip removal annular groove, easier motion and then discharge in chip removal annular groove, prevents plastic flakes to be blocked in chip removal annular groove.
In order to improve the chip removal effect of glue groove, preferably, described glue groove extends in the shape of a spiral on the outer peripheral face of piston.
In order to increase the obturation effect of piston to air-flow, preferably, the outer peripheral face of described piston is provided with at least one and holds one's breath annular groove, and described obturator ring slot is in the rear of chip removal annular groove, and annular groove of respectively holding one's breath extends a circle along piston circumference.Piston is longitudinally divided at least two sections by annular groove of holding one's breath, each end all can with gas block close contact, sealing property is better.Preferably, the quantity of annular groove of holding one's breath described in is two.
Preferably, the passage after described glue groove is communicated with chip removal annular groove is constant or strengthen gradually along airflow direction cross-sectional area.Can not shrink or occur " threshold ", plastic flakes is discharged smoothly.
A kind of method being prevented shotgun gas directing system gum deposit by shotgun piston, the plastics bullet holder of shotgun shell by during gun barrel air guide aperture because gun pressure effect forms bullet holder protuberance, bullet holder protuberance is sheared by gun barrel air guide aperture, the plastic flakes dropped along with derive air-flow enter in the original volume of adjuster by the passage between gun barrel air guide aperture to adjuster air guide aperture, the air propels recoil that piston in gas block is exported, until chip removal annular groove is communicated with gas block steam vent, form current path, plastic flakes along with derive air-flow discharged by gas block steam vent by the glue groove on shotgun piston and chip removal annular groove successively.
Beneficial effect of the present invention:
Shotgun piston arranges glue groove and chip removal annular groove, and both are communicated with the passage of discharging as gas directing system residual air and fragment, and form binder removal passage with other parts of gas directing system and realize gum deposit and discharge.The passage that glue groove and chip removal annular groove are discharged as gas directing system residual air and fragment; chip removal annular groove is set to annular; when can guarantee piston variation of axial position, to discharge uniformity good for residual air, do not affect gunlock energy, more can ensure that piston system capacity when residual air is discharged is more stable.Gum deposit in gas regulating system can be discharged by the present invention, effectively can ensure the adjustment comfortableness of piston movement flexibility and gas conditioner, guarantee the energy stabilization of automatic machine, obviously shortens the cleaning wiping time simultaneously.
Accompanying drawing explanation
Fig. 1 is the partial view of traditional shotgun Piston assembling figure;
Fig. 2 is shotgun piston schematic front view of the present invention;
Fig. 3 is that schematic diagram is looked on a shotgun piston left side of the present invention;
Fig. 4 is that the present invention prevents shotgun piston in the method for shotgun gas directing system gum deposit to be in the partial schematic diagram in front;
Fig. 5 is that the present invention to prevent in the method for shotgun gas directing system gum deposit shotgun piston movement to the plastic flakes path profile at rear.
Reference numeral
The holder of 1-plastics bullet; 2-steel ball; 3-bullet holder protuberance; 4-gun barrel air guide aperture; 5-adjuster air guide aperture; 6-piston; 7-adjuster; 8-holds one's breath annular groove; 9-chip removal annular groove; 10-glue groove; 11-original volume adjusting head; 12-plastic flakes; 13-airflow direction; 14-original volume; 15-gas block steam vent.
Detailed description of the invention
Below in conjunction with accompanying drawing and be that embodiment is described in further detail the present invention:
As shown in Figures 2 and 3, for a kind of preferred embodiment of the piston of shotgun gas directing system, the outer peripheral face of described piston 6 is provided with a chip removal annular groove 9 and six glue grooves 10, described each glue groove 10 is evenly located at the front portion of piston 6, piston 6 is run through in the front end of each glue groove 10, described chip removal annular groove 9 is positioned at the rear of each glue groove 10, and chip removal annular groove 9 extends a circle along piston 6 circumference, and the rear end of each glue groove 10 is all communicated with chip removal annular groove 9.Chip removal annular groove 9 Main Function of glue groove 10, annular is the passage of air-flow and plastic flakes 12.
In order to change the original volume 14 of adjuster 7, further, the front end face of described piston 6 is provided with one along the axially extended original volume adjusting head 11 of piston 6, the radius of original volume adjusting head 11 is less than the distance between each glue groove 10 bottom land to piston 6 axis, and its Main Function is by changing original volume adjusting head 11 size, level configurations gas directing system original volume 14.
In order to improve the guide effect of original volume adjusting head 11 pairs of air-flows, plastic flakes 12, further, described original volume adjusting head 11 front end is the guide head of taper.
Suck back in gas directing system original volume 14 to prevent plastic flakes 12 to be reversed, further, longitudinally all interlocking with the axial space of piston 6 of described each glue groove 10, angulation α, 30 °≤α >=50 °, in the present embodiment, α gets 45 °.Its Main Function of glue groove 10 tilted is hold fragment and prevent fragment counter motion, simultaneously as air-flow and fragment passage.
In order to improve the chip removal effect of glue groove 10, further, described glue groove 10 extends in the shape of a spiral on the outer peripheral face of piston 6.Or described each glue groove 10 is positioned in a plane along the center line of bearing of trend, that is, after being launched by original volume adjusting head, each glue groove extends straight.
In order to increase the obturation effect of piston 6 pairs of air-flows, further, the outer peripheral face of described piston 6 is provided with two annular grooves 8 of holding one's breath, described in annular groove 8 of holding one's breath be positioned at the rear of chip removal annular groove 9, annular groove 8 of respectively holding one's breath extends a circle along piston 6 circumference.Piston 6 is longitudinally divided into three sections by annular groove 8 of holding one's breath, each end all can with gas block close contact, sealing property is better.
Further, the passage after described glue groove 10 is communicated with chip removal annular groove 9 is constant or strengthen gradually along airflow direction 13 cross-sectional area.Can not shrink or occur " threshold ", plastic flakes 12 can be discharged smoothly.
As shown in Figure 4 and Figure 5, for being prevented a kind of preferred embodiment of the method for shotgun gas directing system gum deposit by shotgun piston 6, the plastics bullet holder 1 of shotgun shell by during gun barrel air guide aperture 4 because gun pressure effect forms bullet holder protuberance 3, bullet holder protuberance 3 is sheared by gun barrel air guide aperture 4, the plastic flakes 12 dropped along with derive air-flow enter in the original volume 14 of adjuster 7 by the passage between gun barrel air guide aperture 4 to adjuster 7 air guide aperture 5, the air propels recoil that piston 6 in gas block is exported, until chip removal annular groove 9 is communicated with gas block steam vent 15, when piston 6 moves to gas block steam vent 15 position, original volume 14 is communicated with air with chip removal annular groove 9 by the glue groove 10 of piston 6, in gas directing system, powder gases discharges from gas block steam vent 15 by air-flow, plastic flakes 12 with air-flow from gas block steam vent 15 Exhaust Gas regulating system.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (9)
1. the piston of a shotgun gas directing system, it is characterized in that: the outer peripheral face of described piston is provided with a chip removal annular groove and some glue grooves, described each glue groove is evenly located at the front portion of piston, piston is run through in the front end of each glue groove, described chip removal annular groove is positioned at the rear of each glue groove, chip removal annular groove extends a circle along piston circumference, and the rear end of each glue groove is all communicated with chip removal annular groove.
2. the piston of a kind of shotgun gas directing system according to claim 1, it is characterized in that: the front end face of described piston is provided with one along the axially extended original volume adjusting head of piston, and the radius of original volume adjusting head is less than the distance between each glue groove bottom land to piston axis.
3. the piston of a kind of shotgun gas directing system according to claim 2, is characterized in that: described original volume adjusting head front end is the guide head of taper.
4. the piston of a kind of shotgun gas directing system according to claim 1, is characterized in that: longitudinally all interlocking with the axial space of piston of described each glue groove, angulation α.
5. the piston of a kind of shotgun gas directing system according to claim 3, is characterized in that: described glue groove extends in the shape of a spiral on the outer peripheral face of piston.
6. the piston of a kind of shotgun gas directing system according to claim 1, is characterized in that: the outer peripheral face of described piston is provided with at least one and holds one's breath annular groove, and described obturator ring slot is in the rear of chip removal annular groove, and annular groove of respectively holding one's breath extends a circle along piston circumference.
7. the piston of a kind of shotgun gas directing system according to claim 6, is characterized in that: described in the hold one's breath quantity of annular groove be two.
8. the piston of a kind of shotgun gas directing system according to claim 1, is characterized in that: the passage after described glue groove is communicated with chip removal annular groove, constant or strengthen gradually along airflow direction cross-sectional area.
9. the method for shotgun gas directing system gum deposit is prevented by the arbitrary described a kind of shotgun piston of claim 1 to 8, it is characterized in that the method is: the plastics bullet holder of shotgun shell by during gun barrel air guide aperture because gun pressure effect forms bullet holder protuberance, bullet holder protuberance is sheared by gun barrel air guide aperture, the plastic flakes dropped along with derive air-flow enter in the original volume of adjuster by the passage between gun barrel air guide aperture to adjuster air guide aperture, the air propels recoil that piston in gas block is exported, until chip removal annular groove is communicated with gas block steam vent, form current path, plastic flakes along with derive air-flow discharged by gas block steam vent by the glue groove on shotgun piston and chip removal annular groove successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136308.3A CN104729358B (en) | 2015-03-26 | 2015-03-26 | The piston of shotgun gas directing system and the method preventing shotgun gas directing system gum deposit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136308.3A CN104729358B (en) | 2015-03-26 | 2015-03-26 | The piston of shotgun gas directing system and the method preventing shotgun gas directing system gum deposit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104729358A true CN104729358A (en) | 2015-06-24 |
| CN104729358B CN104729358B (en) | 2016-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510136308.3A Active CN104729358B (en) | 2015-03-26 | 2015-03-26 | The piston of shotgun gas directing system and the method preventing shotgun gas directing system gum deposit thereof |
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| Country | Link |
|---|---|
| CN (1) | CN104729358B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014123A (en) * | 2022-04-28 | 2022-09-06 | 重庆建设工业(集团)有限责任公司 | A kind of automatic machine energy adjustment test tool and method for firearm research and development |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715858A (en) * | 1953-03-02 | 1955-08-23 | Filser D Hoppert | Regulator means for a firearm gas piston |
| US2987968A (en) * | 1959-09-28 | 1961-06-13 | Olin Mathieson | Firearm gas piston with power cavity and inertia valve |
| CN2241859Y (en) * | 1995-12-13 | 1996-12-04 | 黑龙江雄鹰(集团)股份有限公司 | Air-guide semi-automatic shotgun |
| CN102102963A (en) * | 2009-12-18 | 2011-06-22 | 中国兵器工业第二○八研究所 | Self-adaption air guiding system |
| CN104406455A (en) * | 2014-11-24 | 2015-03-11 | 重庆建设工业(集团)有限责任公司 | Emitted gas adjusting mechanism of semi-automatic shotgun |
| CN204594321U (en) * | 2015-03-26 | 2015-08-26 | 重庆建设工业(集团)有限责任公司 | The piston of shotgun gas directing system |
-
2015
- 2015-03-26 CN CN201510136308.3A patent/CN104729358B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715858A (en) * | 1953-03-02 | 1955-08-23 | Filser D Hoppert | Regulator means for a firearm gas piston |
| US2987968A (en) * | 1959-09-28 | 1961-06-13 | Olin Mathieson | Firearm gas piston with power cavity and inertia valve |
| CN2241859Y (en) * | 1995-12-13 | 1996-12-04 | 黑龙江雄鹰(集团)股份有限公司 | Air-guide semi-automatic shotgun |
| CN102102963A (en) * | 2009-12-18 | 2011-06-22 | 中国兵器工业第二○八研究所 | Self-adaption air guiding system |
| CN104406455A (en) * | 2014-11-24 | 2015-03-11 | 重庆建设工业(集团)有限责任公司 | Emitted gas adjusting mechanism of semi-automatic shotgun |
| CN204594321U (en) * | 2015-03-26 | 2015-08-26 | 重庆建设工业(集团)有限责任公司 | The piston of shotgun gas directing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115014123A (en) * | 2022-04-28 | 2022-09-06 | 重庆建设工业(集团)有限责任公司 | A kind of automatic machine energy adjustment test tool and method for firearm research and development |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104729358B (en) | 2016-10-19 |
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