CN108120340A - A kind of shotgun rigidity cartridge case extractor and ejection method - Google Patents
A kind of shotgun rigidity cartridge case extractor and ejection method Download PDFInfo
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- CN108120340A CN108120340A CN201711372188.2A CN201711372188A CN108120340A CN 108120340 A CN108120340 A CN 108120340A CN 201711372188 A CN201711372188 A CN 201711372188A CN 108120340 A CN108120340 A CN 108120340A
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- Prior art keywords
- extractor
- ejection
- shell case
- plane
- shotgun
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- 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
- F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Apparatus For Making Beverages (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The present invention provides a kind of shotgun rigidity cartridge case extractor, it is endured including casing body, extractor, ejection, the extractor is mounted on casing body one side, the ejection, which is endured, is mounted on one side opposite with extractor on casing body, the extractor tip inside has inside claw, the claw is used to catch on extractor groove of the shell case close to bottom side during ejection, and it is pulled to the direction away from shell case, the step that top is equipped with corresponding extractor claw is endured in the ejection, and the lower part square position of the step is the inclined-plane for being arranged to chamfering.The present invention also provides a kind of shotgun rigidity ejection methods, top is endured in ejection, and step is set, the lower part square position of step is equipped with an inclined-plane for forming chamfering, so that during ejection under the pulling of extractor, it is collided with the inclined-plane side of shell case bottom face, shell case bottom is collided by the end face of proximal edges and the bench crest of the step, and shell case turns an angle around step bench crest, and completes ejection after moving a distance along inclined-plane.The present invention improves shotgun ejection reliability.
Description
Technical field
The present invention relates to a kind of automatic weapon cartridge case extractor and ejection method, be specially a kind of shotgun rigidity cartridge case extractor and
Ejection method.
Background technology
At present, the mode that the shell case of automatic weapon is removed from bore is：The bottom of common shell case is that there are one rings for one section of band
The cylindrical portion of shape extractor groove, there are one cylindrical bottom nests, just the bottom cylinder of shell case and extractor groove 1 for the automatic chain-drive section of weapon
Bullet bottom nest can be fallen into, there is extractor in bullet bottom nest one side, and the claw of extractor is just embraced in the extractor groove 1 of cartridge case base, when
During ejection, automatic machine moves backward under the drive of powder gas or pulling force, and shell case is under the limitation of extractor with automatic machine one
It rises from bore and retreats until being fully removed bore.
The Throwing shells of general firearms are specifically divided into two processes of ejection and Throwing shells, the mistake that ejection thrum shell is deviate from from gunlock
Journey, cartridge case extractor mainly by casing body, extractor, extractor spring, ejection very etc. form.Throwing shell thrums shell abjection gunlock after to
Shell throwing-out window or gunlock body collide and the process for the casing body that flies out.Rigid ejection is very to be forced by the ejection being fixed on casing body
Shell case in movement departs from gunlock.
As shown in Figure 1, usually small-bore ball diameter is smaller (about 10mm or so), extractor groove root edge 11 is plane.Such as
It is ball ejection schematic diagram shown in Fig. 3, extractor is F to the active force of extractor groove root edge 11, then extractor groove root edge is to drawing shell
The reaction force of hook, which has, forces extractor 4 around extractor axis 7 along the trend for being close to extractor groove root edge clockwise, i.e. " self-locking ".So
And shotgun shell is relatively large in diameter (about 22.5mm or so), structure as shown in Fig. 2, shotgun shell extractor groove root edge be 110 ° of inclined-planes,
Since contour structures and weight limit, it is difficult to accomplish " self-locking ", the reaction force of power F forces extractor around drag hook axis along the inverse time
Pin rotates, and has the trend that extractor 4 is allowed to disengage shell case (see Fig. 4).
As shown in figure 4, when moving back common shell case, extractor perpendicular to extractor groove root edge plane, and moves back the directed force F of shell case
During shotgun shell extractor to the directed force F of shell case with extractor groove root edge plane there are angle α, power F can be analyzed to perpendicular to
The power F1 of the extractor groove root edge plane and power F2 parallel to extractor groove root edge plane.Not " self-locking " and the reaction of component F2 above
Power collective effect can accelerate the separation of shotgun shell and extractor, reduce the energy that shell case obtains.As shown in figure 5, in ejection
In the process, the rib that ejection is endured at the top of 2 contacts always with shell case bottom face, and shell case is counterclockwise under the action of extractor and ejection are endured
Rotation, and due to the effect of component F2, shell case can move downward while rotation.Even if the spring hook power of extractor spring is sufficiently large,
Its power unscrewed by shell case extractor groove root edge can be kept out, when bullet bottom moves downward the distance, delta of very little, shell case from a positions (with
Ejection very starts Contact) very little angle is turned over to b positions, extractor just departs from shell case.Shell case and extractor disengage when
Between be advanced by t=(L-L ＇)/V0.Wherein：L be normal ejection gunlock move distance, L ＇ be in advance ejection gunlock movement away from
From V0 is gunlock movement velocity.
Therefore, shotgun exists apparent different from the ejection of common shell case, under identical gunlock recoil velocity V0, shotgun shell
The energy smaller of shell ejection, shell case poor anti jamming capability, flight is unstable, and then follow-up Throwing shells reliability is caused to reduce, easily
There is the failure that gets stuck.It is therefore desirable to shotgun cartridge case extractor and ejection method are optimized from mechanism.
The content of the invention
For in the prior art the defects of, the present invention provides a kind of shotgun rigidity cartridge case extractor, can increase shotgun and move back
Shell energy and ejection reliability.
Another object of the present invention also provides a kind of shotgun rigidity ejection method, can increase shotgun ejection energy and move back
Shell reliability.
Technical solution of the present invention is as follows：
A kind of shotgun rigidity cartridge case extractor, is endured including casing body, extractor, ejection, and the extractor is mounted on casing body
One side, the ejection, which is endured, is mounted on one side opposite with extractor on casing body, and the extractor tip inside has inside
Claw, which is used to catch on extractor groove of the shell case close to bottom side during ejection, and is pulled to the direction away from shell case, closes
Key is：The step that top is equipped with corresponding extractor claw is endured in the ejection, and the lower part square position of the step is to be arranged to chamfering
Inclined-plane.
A kind of shotgun rigidity ejection method, key are：Top is endured into ejection and is arranged to step structure, the lower part of step
Square position be equipped with one formed chamfering inclined-plane so that during ejection under the pulling of extractor, the side of shell case bottom face with it is described tiltedly
Face contacts, and shell case bottom is contacted by the end face of proximal edges with the bench crest of step, then the shell case bottom face under the pulling of extractor
Side and the inclined-plane collide, shell case bottom is collided by the end face of proximal edges and the bench crest of the step, and shell case is around step slope
Top line turns an angle and completes ejection after moving a distance along inclined-plane.
Ejection is endured top and is arranged to step structure, the lower part square position of step is set by the present invention by the improvement endured to ejection
Be set to an inclined-plane so that during ejection under the pulling of extractor, the side of shell case bottom face always with step square position contact of incline plane,
Shell case bottom is contacted close to the end face of the side with the bench crest of step always, then the shell case bottom face under the pulling of extractor
Side and the inclined-plane collide, shell case bottom is collided close to the end face of the side with step bench crest always, and shell case is around step
Bench crest turns an angle and completes ejection after moving a distance along inclined-plane.The lower part square position of step is arranged to inclined-plane, supports
Disappear because extractor is applied to the power that shell case is made to disengage extractor caused by shell case extractor groove root edge, shell is drawn when extending ejection
Hook adds ejection energy to the acceleration time of shell case so that Throwing shells route is stablized, and reliability improves.
In conclusion the present invention changes the interactively that shell case is endured with ejection, increase ejection energy so that shotgun ejection
Reliably, and then ensure that ejection route is stablized.The present invention also has the advantages of simple in structure, easy to implement simultaneously, both can be
The ejection of existing shotgun is very upper to be improved, and can also be produced new ejection and is endured and replace the ejection of existing shotgun and endure.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the technical solution in the specific embodiment of the invention or background technology
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all of the figs, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is common shell case structural scheme of mechanism in background technology；
Fig. 2 is shotgun shell structure diagram in background technology；
Fig. 3 is common shell case ejection schematic diagram in background technology；
Fig. 4 is prior art shotgun ejection schematic diagram in background technology；
Fig. 5 is the analysis schematic diagram that prior art shotgun shifts to an earlier date ejection in background technology；
Fig. 6 is structure diagram of the invention in specific embodiment；
Fig. 7 is ejection process schematic of the present invention in specific embodiment；
Fig. 8 is the structure diagram that ejection of the present invention is endured；
In attached drawing：1- extractor grooves；11- extractor groove root edges；2- ejections are endured；21- inclined-planes；22- bench crests；3- casing bodies；4-
Extractor；5- shell cases；6- extractor springs；7- extractor axis.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
In the present embodiment, the orientation or position of the instructions such as term " on " " under " " left side " " right side " " preceding " " rear " " upper end " " lower end "
It is based on orientation shown in the drawings or position relationship to put relation, is for only for ease of description rather than instruction or implies meaning
Device or element must have specific orientation, with specific azimuth configuration or operation, therefore it is not intended that the present invention's
Limitation.
As shown in Fig. 6, Fig. 7, Fig. 8, a kind of shotgun rigidity cartridge case extractor endures 2, institute including casing body 3, extractor 4, ejection
Extractor 4 is stated mounted on 3 one side of casing body, the ejection endures 2 and is mounted on one side opposite with extractor 4 on casing body, described
Extractor tip inside has inside claw, which is used to catch on extractor groove of the shell case close to bottom side, institute during ejection
The claw for stating the corresponding extractor in ejection very top is equipped with step structure, and the lower part square position of the step is the inclined-plane to form chamfering
21。
As shown in Fig. 6, Fig. 7, Fig. 8, step is very set in ejection, the lower part square position of step sets out the oblique of a formation chamfering
Face 21 so that during ejection under the pulling of extractor, the side of shell case bottom face is contacted with the inclined-plane 21, and shell case bottom is close to institute
The end face of side is stated to contact with the bench crest 22 of step, then under the pulling of extractor the side of shell case bottom face with described
Rank inclined-plane 21 collides, and shell case bottom is collided close to the end face of the side and the bench crest, and shell case is rotated around bench crest 22 and edge
Ejection is completed after moving one end distance in inclined-plane 21.
It is assumed that gunlock and shell case uniform motion during ejection, shell case 5 collides ejection and endured for 2 moments, force analysis such as Fig. 6 institutes
Show, wherein, N1 is active force of the inclined-plane to the side of shell case bottom face, and N is for bench crest to shell case bottom close to the end of the side
The active force in face, F are active force of the extractor to shell case extractor groove root edge, and F1, F2 are the component of F.At this point, stress N=F1, N1
=F2, shell case is only by the effect of anticlockwise moment M=N × X, and shell case bottom connects by the end faces of proximal edges with step bench crest at this time
It touches, using bench crest as fulcrum, along rotation counterclockwise, and the side of shell case bottom face is moved along inclined-plane.Such as Fig. 8, shell case will take off
Extractor is opened, the distance L that gunlock need to move, much larger than former L ＇, the corner that shell case is rotated in place b ＇ from position a significantly increases,
Extend acceleration time of the extractor to shell case, the energy higher that shell case obtains.
In conclusion the present invention changes the interactively that shell case is endured with ejection so that shotgun ejection is reliable, and then ensures
Ejection route is stablized.The present invention also has the advantages of simple in structure, easy to implement simultaneously, both can be in the ejection of existing shotgun
It is very upper to improve, it new ejection can also be produced endures and replace the ejection of existing shotgun and endure.
Such as Fig. 8, in order to avoid the lower part square position end m points that shell case endures step with ejection too early contact (see Fig. 6), cause to carry
Preceding Throwing shells problem, can adjust step surface 21 can reach the knot of the purpose of same to muzzle direction downward gradient or using arc etc.
Structure.In addition become apparent from using spring leaf substitution sloping platform terrace to improving ejection energy effect.
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
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that；It still may be used
Either which part or all technical characteristic are equal with modifying to the technical solution recorded in previous embodiment
It replaces；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the model of technical solution of the embodiment of the present invention
It encloses, should all cover among the claim of the present invention and the scope of specification.
Claims (2)
1. a kind of shotgun rigidity cartridge case extractor, is endured including casing body, extractor, ejection, the extractor is mounted on casing body one
Side, the ejection, which is endured, is mounted on one side opposite with extractor on casing body, and the extractor tip inside has inside pawl
Portion, which is used to catch on extractor groove of the shell case close to bottom side during ejection, and is pulled to the direction away from shell case, feature
It is：The step that top is equipped with corresponding extractor claw is endured in the ejection, and the lower part square position of the step is to be arranged to chamfering
Inclined-plane.
2. the ejection method of shotgun rigidity cartridge case extractor according to claim 1, it is characterised in that：Ejection is endured top to set
Step structure is set to, the lower part square position of step is equipped with an inclined-plane for forming chamfering so that during ejection under the pulling of extractor, bullet
The side of shell bottom face and the contact of incline plane, shell case bottom are contacted close to the end face of the side with the bench crest of step, then
The side of shell case bottom face and the inclined-plane collide under the pulling of extractor, shell case bottom close to the end face of the side with it is described
The bench crest collision of step, shell case turn an angle around step bench crest, and complete ejection after moving one end distance along inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372188.2A CN108120340B (en) | 2017-12-19 | 2017-12-19 | shotgun rigid shell withdrawing mechanism and shell withdrawing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711372188.2A CN108120340B (en) | 2017-12-19 | 2017-12-19 | shotgun rigid shell withdrawing mechanism and shell withdrawing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108120340A true CN108120340A (en) | 2018-06-05 |
| CN108120340B CN108120340B (en) | 2020-01-31 |
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ID=62229341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711372188.2A Active CN108120340B (en) | 2017-12-19 | 2017-12-19 | shotgun rigid shell withdrawing mechanism and shell withdrawing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108120340B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542347A (en) * | 2019-09-30 | 2019-12-06 | 重庆建设工业(集团)有限责任公司 | Inclined guide rod stressed type shell pumping mechanism for small machine head |
| CN113758369A (en) * | 2020-06-02 | 2021-12-07 | 陈勃至 | Gunlock carrier and receiver assembly for toy gun |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034424A (en) * | 1987-12-01 | 1989-08-02 | 胜利武器有限公司 | Self loading pistol |
| EP2078915A2 (en) * | 2008-01-09 | 2009-07-15 | Browning International Société anonyme | Multi-caliber bolt for a firearm |
| KR100911673B1 (en) * | 2009-03-02 | 2009-08-10 | 국방과학연구소 | Ejection device for an empty cartridge |
| CN102679811A (en) * | 2012-05-07 | 2012-09-19 | 重庆建设工业(集团)有限责任公司 | Rigid case ejecting method for short cartridge case firearm |
-
2017
- 2017-12-19 CN CN201711372188.2A patent/CN108120340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034424A (en) * | 1987-12-01 | 1989-08-02 | 胜利武器有限公司 | Self loading pistol |
| EP2078915A2 (en) * | 2008-01-09 | 2009-07-15 | Browning International Société anonyme | Multi-caliber bolt for a firearm |
| KR100911673B1 (en) * | 2009-03-02 | 2009-08-10 | 국방과학연구소 | Ejection device for an empty cartridge |
| CN102679811A (en) * | 2012-05-07 | 2012-09-19 | 重庆建设工业(集团)有限责任公司 | Rigid case ejecting method for short cartridge case firearm |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542347A (en) * | 2019-09-30 | 2019-12-06 | 重庆建设工业(集团)有限责任公司 | Inclined guide rod stressed type shell pumping mechanism for small machine head |
| CN110542347B (en) * | 2019-09-30 | 2024-05-17 | 重庆建设工业(集团)有限责任公司 | Oblique guide rod stressed shell drawing mechanism for small-sized machine head |
| CN113758369A (en) * | 2020-06-02 | 2021-12-07 | 陈勃至 | Gunlock carrier and receiver assembly for toy gun |
| CN113758369B (en) * | 2020-06-02 | 2023-04-18 | 陈勃至 | Gunlock carrier and receiver assembly for toy gun |
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| Publication number | Publication date |
|---|---|
| CN108120340B (en) | 2020-01-31 |
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