CN104006704B - The constant force of separated cartridge send bullet device - Google Patents
The constant force of separated cartridge send bullet device Download PDFInfo
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- CN104006704B CN104006704B CN201410210615.7A CN201410210615A CN104006704B CN 104006704 B CN104006704 B CN 104006704B CN 201410210615 A CN201410210615 A CN 201410210615A CN 104006704 B CN104006704 B CN 104006704B
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Abstract
The invention discloses the constant force of a kind of separated cartridge and send bullet device, it includes the force application mechanism for externally applied thrust, produce the elastic body of compression elasticity under the effect of external thrust, discharged by the constant spring force of compression and promote the power relieving mechanism of Projectile Motion, the free end of described force application mechanism is the force side for externally applied thrust, the non-free end non-free end by elastic body attachment force relieving mechanism, the rear end face of the free end top pressure bullet of power relieving mechanism.Present configuration is simple, not by the impact of ammunition carrier's thrust size, with the constant elastic force that send, bullet propelling movement can be put in place during filling every time, can eliminate by sending the inconsistent initial velocity caused of elastic force to spread, and step-less adjustment can send the size of elastic force according to the different demands of the body constitution of ammunition carrier, it is widely used.The present invention is applicable to the filling of separated cartridge.
Description
Technical field
The invention belongs to military applications field, relate to Canon launching filling technology, specifically the constant force of a kind of separated cartridge send bullet device.
Background technology
Currently, entire PLA artilleryman is in " first-round hit ", " first group covering " this major issue of research cannon, and for separate loading cannon, dispersion is the principal element affecting above-mentioned requirements, and the principal element affecting dispersion is initial velocity distribution, show through substantial amounts of experimental data, cause the reason that initial velocity spreads except the factor of ammunition and cannon self, topmost reason is that before launching, the position being bound to position of sending of every bullet can not be completely the same, and with send be bound to a position directly related be the size sending elastic force.There is the separate loading cannon of certain abrasion especially for thorax in a barrel, sending the fine difference of elastic force that bullet position will be made to have greatly changed, thus affecting the flight initial velocity of bullet.
And filling process before pellet injection is all completed by ammunition carrier's manual operation in prior art, this is difficult to ensure that different ammunition carriers or even same ammunition carrier send elastic force invariable in each filling process, send elastic force inconsistent to may result in every bullet to send and be bound to the inconsistent of a position, and then affect flight initial velocity and the dispersion of bullet, finally affect fire effect.
Summary of the invention
The technical problem to be solved in the present invention, it is to provide a kind of constant force for the separated cartridge of separated cartridge and send bullet device, not by the impact of anthropic factor, with the constant elastic force that send, bullet propelling movement is put in place, and elastic force can be sent according to ammunition carrier's body constitution adjustment, ensure to send elastic force invariable when loading every time, eliminate owing to sending the inconsistent initial velocity caused of elastic force to spread, meet the launch requirements of bullet.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
The constant force of a kind of separated cartridge send bullet device, it includes the force application mechanism for externally applied thrust, send the elastic body producing compression elasticity under the effect of elastic force in outside, the release of the constant spring force of compression is promoted the power relieving mechanism of bullet, the free end of described force application mechanism is the force side for externally applied thrust, the non-free end non-free end by elastic body attachment force relieving mechanism, the rear end face of the free end top pressure bullet of power relieving mechanism.
As limitation of the invention: described force application mechanism includes the force head held for external staff and the hollow stem of transmission thrust, described force head is connected with one end of hollow stem.
As limitation of the invention further: described elastic body includes the first compression spring, described first compression spring is located in the spring strut with boss, the be connected opposite side of force head of spring strut and hollow stem is connected, one end of described spring is fixedly arranged on the boss of spring strut, the other end is fixedly arranged on the side of a spring stop, the opposite side attachment force relieving mechanism of spring stop.
Further restriction as to the present invention: described power relieving mechanism includes being provided with the through throw-out lever freeing hole in left and right, is provided with the throw-out lever positioning tube in up/down perforation hole, frees cylinder, and force application rod, described throw-out lever is located in the through hole of throw-out lever positioning tube, compresses spring by second and is connected with throw-out lever positioning tube；Throw-out lever positioning tube is not provided with the top, one end of throw-out lever and is pressed in spring bearer plate and is not provided with the side of the first compression spring；Freeing the wedge shape inner chamber that cylinder is provided with through, throw-out lever is slidingly disposed in wedge shape intracavity, frees an one end that wedge shape lumen openings is less and threadeds with spring strut；One end of force application rod is relatively freed hole and is pushed up with staggering and be pressed on throw-out lever side.
Restriction as to aforesaid way: described elastic body also includes the 3rd compression spring being sleeved on outside force application rod, and there is the termination of cavity, described termination with free cylinder be provided with throw-out lever one end be connected, 3rd spring is located in the cavity of termination, force application rod runs through the 3rd spring in the cavity of termination and cavity, described 3rd spring one end is fixedly arranged on the middle part boss of force application rod, the other end be fixedly arranged on termination with free cylinder be connected one end plane on, termination be not connected the same end closure in one end of the 3rd spring, cushion pad be connected seal.
As to aforesaid way further define that it also include conditioning guiding mechanism, what this mechanism included having cavity send bullet, it is provided with and the sleeve sending bullet cavity to connect firmly in the described cavity sending bullet, described termination, end closure, cushion pad, and be located in the cavity of termination the 3rd compression spring, force application rod be all located in sleeve, one end that force application rod is relative with throw-out lever is fixedly arranged on sleeve.
Further restriction as to aforesaid way: described sleeve connects firmly by staying spiral shell with sending bullet, is provided with and holds the groove staying spiral shell on the outer surface of termination, and described end in land can be located in groove slidingly.
To sum up, owing to have employed above-mentioned technical scheme, compared with prior art, acquired technological progress is in that the present invention:
(1) external staff can applied thrust by the force application mechanism of the present invention, this thrust is converted to elastic force by elastic body, final elastic force is released to bullet by power relieving mechanism, due to the release of power relieving mechanism is constant spring force, therefore, power relieving mechanism promotes the elastic force that send of bullet to be also constant, even if different launching crews is applied in the present invention with different thrust, also can guarantee that the elastic force that send that final bullet receives is constant, the position that pushes of bullet is also constant；
(2) force application mechanism of the present invention is force head and the setting of hollow stem, simple in construction, and hollow stem alleviates entirety and send the quality playing device, makes more convenient operation；
(3) elastic body in the present invention includes the first compression spring, the 3rd compression spring, and two compression spring combineds effect make the elastic force that send being applied on bullet be multiplied, it is ensured that bullet shifts position onto；
(4) spring strut is threadeded between cylinder with freeing, therefore can realize bullet is sent the step-less adjustment of elastic force, only need to adjust spring strut and the distance freeing between cylinder, namely scalable first compresses elastic force when spring finally discharges, and then the elastic force that send to bullet can be regulated, disclosure satisfy that mission need equally during ammunition carrier's body constitution difference.
Present configuration is simple, not by the impact of external staff's thrust size, finally bullet can be promoted to put in place with constant motive force, and for the body constitution of different ammunition carriers, it is possible to step-less adjustment finally send the size of elastic force, is widely used.
The present invention is applicable to separated cartridge is pushed to transmitting position.
The present invention is described in further detail below in conjunction with Figure of description and specific embodiment.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural representation of spring strut 3 in the embodiment of the present invention；
Fig. 3 is the structural representation of spring stop 5 in the embodiment of the present invention；
Fig. 4 is the structural representation of throw-out lever positioning tube 6 in the embodiment of the present invention；
Fig. 5 is the structural representation of throw-out lever 8 in the embodiment of the present invention；
Fig. 6 is the structural representation freeing cylinder 9 in the embodiment of the present invention；
Fig. 7 is the structural representation of termination 10 in the embodiment of the present invention；
Fig. 8 is the top view of termination 10 in the embodiment of the present invention；
Fig. 9 is the structural representation of end closure 18 in the embodiment of the present invention.
In figure: 1 force head, 2 hollow stems, 3 spring struts, 4 first compression springs, 5 spring stops, 6 throw-out lever positioning tubes, 61 first through holes, 62 second through holes, 63 third through-holes, 7 second compression springs, 8 throw-out levers, 9 free cylinder, 10 terminations, 101 grooves, 11 the 3rd compression springs, 12 force application rods, 13 fillister head screws, 14 send bullet, 15 sleeves, 16 cylinders in swivel nut, 17 stay spiral shell, 18 end closures, 19 cushion pads, 20 plain washers, 21 spring washers, 22 nuts.
Detailed description of the invention
Embodiment
The constant force that the present embodiment is a kind of separated cartridge send bullet device, and with reference to Fig. 1, it includes:
(1) force application mechanism
Force application mechanism is used for the direct applied thrust of external staff, force application mechanism in the present embodiment includes force 1 and hollow stem 2, for convenient operation, force 1 in the present embodiment is set to the form of bulb as shown in Figure 1, described force 1 is provided with an extension rod, this extension rod is placed in the cavity of hollow stem 2, and with the inner chamber interference fit of hollow stem 2.
(2) elastic body
Elastic body produces compression elasticity under the effect of external staff's thrust, and the present embodiment utilizes this compression elasticity to promote bullet to put in place.
As shown in Figure 1, described elastic body includes the first compression spring 4 producing compression elasticity, described first compression spring 4 is located in spring strut 3, the structure of spring strut 3 is as shown in Figure 2, it is " convex " font, and spring strut 3 has one end interference that one end of boss and hollow stem 2 be not provided with force 1 and connects firmly, and is additionally provided with spring stop 5 in spring strut 3, one end of first compression spring 4 is fixedly arranged on the boss in spring strut 3, and the other end is fixedly arranged on spring stop 5.Described spring stop 5 is as it is shown on figure 3, be that " [" shape, the first compression spring 4 is connected with the left side plan of spring stop 5.
(3) power relieving mechanism
The constant spring force that first compression spring 4 compresses can be discharged and promote bullet to put in place by power relieving mechanism.Power relieving mechanism in the present embodiment is as shown in Figure 1, including: it is provided with the throw-out lever 8 freeing hole that left and right is through, throw-out lever positioning tube 6, free cylinder 9, and force application rod 12, wherein said throw-out lever 8 is located in the first through hole 61 of throw-out lever positioning tube 6, described first through hole 61 is as shown in Figure 4, it it is the through hole of through positioning tube about 6, mating shapes with throw-out lever 8, and be connected with throw-out lever 8 by the second compression spring 7, in order to realize with throw-out lever 8 be connected, the present embodiment is from bottom to top provided with the second through hole 62 on throw-out lever positioning tube 6, described second through hole 62 and the first through hole 61 are coaxially disposed, and non-through throw-out lever positioning tube 6, in order to form boss, the diameter of the second through hole 62 is more than the diameter of through hole 61, and throw-out lever 8 bottom as shown in Figure 1 is provided with boss, the first through hole 61 is located at by second compression spring 7, between the boss and the boss of throw-out lever 8 that are formed between the second through hole 62.And the third through-hole 63 freeing through first through hole 61 of about Kong Zeyu of throw-out lever 8 matches.
Described cylinder 9 of freeing has the wedge shape cavity that left and right is through, throw-out lever positioning tube 6 is provided with one end of throw-out lever 8 and is jointly located in the wedge cavities freeing cylinder 9 with throw-out lever 8, can slide along the hypotenuse freeing cylinder 9 wedge shape cavity in the bottom of throw-out lever 8, free one end that the less one end of cylinder 9 wedge shape cavity opening arranges spring stop 5 with spring strut 3 to be connected, throw-out lever positioning tube 6 is not provided with one end of throw-out lever 8 and is positioned at spring strut 3, and top is pressed in spring stop 5 and is not provided with on the side of the first compression spring 4.In order to make throw-out lever 8 to slide more freely in the cavity freeing cylinder 9, throw-out lever 8 is set to freeing one end that cylinder 9 contacts and frees the wedge shape that cylinder 9 cavity matches by the present embodiment, and the wedge angle of throw-out lever 8 is consistent with the wedge angle freeing cylinder 9.
And the top, one end of force application rod 12 is pressed in the plane of side of throw-out lever 8, throw-out lever 8 be provided with left and right through free hole, described through-hole diameter is a bit larger tham the diameter of force application rod 12, and during non-applied thrust promotion bullet, the through hole of force application rod 12 and throw-out lever 8 is arranged for staggering under the effect of the second spring 7, and namely force application rod 12 is pressed on the right flank of throw-out lever 8 by third through-hole 63 top.
In order to improve the present embodiment, as it is shown in figure 1, the constant force of this separated cartridge send bullet device to be provided with the 3rd compression spring 11.3rd compression spring 11 is sleeved on outside force application rod 12, in order to make the 3rd compression spring 11 have fixing position, the present embodiment also relative set termination 10, the structure of described termination 10 is as shown in Figure 7, also for having the structure of cavity, described force application rod 12 runs through termination 10 and arranges, and the 3rd compression spring 11 is positioned at termination 10, and the 3rd compression spring 11 one end be fixedly arranged in the plane of termination 10 inner chamber left end, the other end is fixedly arranged on the boss in the middle part of force application rod 12.And the right-end openings of termination 10 is sealed by end closure 18 as shown in Figure 9, the right-hand member of end closure 18 is additionally provided with plain washer 19 simultaneously, and force application rod 12 is through end closure 18 and plain washer 19 simultaneously.
When to the present embodiment applied thrust, 3rd compression spring 11 and the first compression spring 4 are compressed simultaneously, when the elastic force of power relieving mechanism release compression, produce impact force between the first compression spring 4 and the 3rd compression spring 11, increase the elastic force of release, it is ensured that the propelling movement position of bullet.
In order to improve the present embodiment further, it is also provided with sending bullet 14, utilize the rear end face sending bullet 14 directly to push up pressure bullet, bullet is pushed and puts in place, described send bullet 14 as shown in Figure 1, there is cavity equally, sleeve 15 it is provided with in the cavity sending bullet 14, free cylinder 9, termination 10, and end closure 18, plain washer 19 be all located in sleeve 15, force application rod 12 does not push up one end of pressure throw-out lever 8 and stretches out sleeve 15, and is fixed by nut 22, is provided with plain washer 20 and spring washer 21 between the side of nut 22 and sleeve 15 simultaneously.And give between bullet 14 and sleeve 15 by being connected in spiral shell 17, for ensureing product quality, outside spiral shell 17, it is being set with cylinder in swivel nut 16.Due to the reason in spiral shell 17 length, the top of termination 10 will be located in spiral shell 17, and in order to apply outside send elastic force time, force application rod 12 is made relatively to move to left, as shown in Figure 8, the end face of termination 10 offers groove 101, embeds in groove 101 in the bottom of spiral shell 17, and can horizontally slip in groove 101.
In order to make the simple in construction of the present embodiment, described spring strut 3 with free between cylinder 9 for threadeding；Free also for threadeding between cylinder 9 with termination 10, and fixed by screw；Threaded between termination 10 with end closure 18.Due to spring strut 3 with free between cylinder 9 for threadeding, and free cylinder 9 and be connected with termination 10, free cylinder 9, termination 10 is located at again in the sleeve 15 sending bullet 14 inner chamber, sleeve 15 and force application rod 12, bullet 14 is sent to be connected, therefore bullet 14 is sent namely can to regulate the distance freed between cylinder 9 and spring strut 3 by rotation, and then regulate the elastic force of final release, the ammunition carrier of different body constitution is equally possible utilize the present embodiment that bullet is pushed to transmitting before installation site.
The specific works principle of the present embodiment is: when not using, state as shown in Figure 1, and force application rod 12 top is pressed on the side of throw-out lever 8.When needs utilize the present embodiment to push bullet, order send bullet 14 top to be pressed on the rear end face of bullet, external staff is by 1 applied thrust that exerts a force, owing to sending bullet 14 can move along the length direction of hollow stem 2, and send bullet 14 to be connected with force application rod 12 by sleeve 15, therefore under the thrust effect with bullet barrier force, bullet 14 is sent to drive force application rod 12 to move towards spring strut 3, now, 3rd compression spring 11 compresses, simultaneously because throw-out lever positioning tube 6 can also move along the length direction of hollow stem 2, and force application rod 12 top is pressed on throw-out lever 8, therefore throw-out lever positioning tube 6, throw-out lever 8 collectively faces towards spring strut 3 under the effect of force application rod 12 and moves, first compression spring 4 compresses, it is wedge shape cavity structure owing to freeing the structure of cylinder 9, throw-out lever 8 can move along wedge shape cavity, cause that the second compression spring 7 compresses, simultaneously, throw-out lever 8 can along the upwardly directed movement being perpendicular to force application rod 12 axis, until force application rod 12 is completely embedded in the cavity of throw-out lever 8, lose the first compression spring 4 of extruding force to compress spring 11 with the 3rd and discharge rapidly the elastic force of compression, final put in place by sending bullet 14 to convert to send elastic force to push bullet, meanwhile, second compression spring 7 can recover voluntarily.
Owing to the elastic force of release final in the present embodiment is approximately initial apply elastic force 5 times, and the thrust that shooter applies is not over the elastic force of release, therefore, when loading every time, the thrust no matter ammunition carrier applies is much, when force application rod 12 enters the through hole of throw-out lever 8, the compression elasticity of the first compression spring 4 and the 3rd compression spring 11 is changeless, namely the compression degree of the first compression spring 4 and the 3rd compression spring 11 is constant, cause that the final elastic force that send discharged is constant, it is achieved constant force pushes the purpose that bullet puts in place.
In addition, in the present embodiment spring strut 3 with free threadeding between cylinder 9, it is capable of the release elastic force of the present embodiment is carried out step-less adjustment, only need to rotate during adjustment and send bullet 14, free cylinder 9 and just under the drive of intermediate transfer device, (now throw-out lever positioning tube 6 free cylinder 9 relative to throw-out lever 8 maintains static) can be moved towards or away from spring strut 3, cause that the first compression spring 4 discharges the change of elastic force.Be such as the first compression spring 4 shown in Fig. 1 be the state under naturalness, the elastic force of now the present embodiment release be after applied thrust the first compression spring 4 with the 3rd compress spring 11 the elastic force that contains of compression.When needing to increase propelling movement power, bullet 14 will be sent to turn clockwise, free cylinder 9 namely to move towards spring strut 3, the first compression spring 4 is made to compress, when now recycling the present embodiment pushes bullet, sending the elastic force that bullet 14 discharges is the elastic force that the first compression spring 4 total compression amount contains with the 3rd compression spring 11 decrement, namely send bullet 14 that the elastic force that send of bullet is increased.
Claims (7)
1. the constant force of separated cartridge send a bullet device,It is characterized in that:It includes the force application mechanism for externally applied thrust, produce the elastic body of compression elasticity under the effect of external thrust, discharged by the constant spring force of compression and promote the power relieving mechanism of bullet, the free end of described force application mechanism is for the externally applied force side sending elastic force, the non-free end non-free end by elastic body attachment force relieving mechanism, the rear end face of the free end top pressure bullet of power relieving mechanism.
2. the constant force of separated cartridge according to claim 1 send bullet device,It is characterized in that:
Described force application mechanism includes the force head held for external staff and the hollow stem of transmission thrust,
Described force head is connected with one end of hollow stem.
3. the constant force of separated cartridge according to claim 2 send bullet device,It is characterized in that:Described elastic body includes the first compression spring, described first compression spring is located in the spring strut with boss, the be connected opposite side of force head of spring strut and hollow stem is connected, one end of described spring is fixedly arranged on the boss of spring strut, the other end is fixedly arranged on the side of a spring stop, the opposite side attachment force relieving mechanism of spring stop.
4. the constant force of separated cartridge according to claim 3 send bullet device,It is characterized in that:
Described power relieving mechanism includes being provided with the through throw-out lever freeing hole in left and right, has the throw-out lever positioning tube of up/down perforation through hole, frees cylinder and force application rod,
Described throw-out lever is located in the through hole of throw-out lever positioning tube, compresses spring by second and is connected with throw-out lever positioning tube；Throw-out lever positioning tube is not provided with the top, one end of throw-out lever and is pressed in spring bearer plate and is not provided with the side of the first compression spring；Freeing the wedge shape inner chamber that cylinder is provided with through, throw-out lever is slidingly disposed in wedge shape intracavity, frees an one end that wedge shape lumen openings is less and threadeds with spring strut；One end of force application rod is relatively freed hole and is pushed up with staggering and be pressed on throw-out lever side.
5. the constant force of separated cartridge according to claim 4 send bullet device,It is characterized in that:Described elastic body also includes the 3rd compression spring being sleeved on outside force application rod, and has the termination of cavity；Described termination with free cylinder be provided with throw-out lever one end be connected；3rd spring is located in the cavity of termination, and force application rod runs through the 3rd spring in the cavity of termination and cavity, and described 3rd spring one end is fixedly arranged on the middle part boss of force application rod, the other end be fixedly arranged on termination with in the plane of the one end freed cylinder and be connected；The connected same end closure in one end of the 3rd spring in termination, cushion pad are connected and seal.
6. the constant force of separated cartridge according to claim 5 send bullet device,It is characterized in that:It also includes sending elastic force guiding mechanism, what this mechanism included having cavity send bullet, it is provided with and the sleeve sending bullet cavity to connect firmly in the described cavity sending bullet, described termination, end closure, cushion pad, and be located in the cavity of termination the 3rd compression spring, force application rod be all located in sleeve, one end that force application rod is relative with throw-out lever is fixedly arranged on sleeve.
7. the constant force of separated cartridge according to claim 6 send bullet device,It is characterized in that:Described sleeve connects firmly by staying spiral shell with sending bullet, is provided with and holds the groove staying spiral shell on the outer surface of termination, and described end in land can be located in groove slidingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210615.7A CN104006704B (en) | 2014-05-19 | 2014-05-19 | The constant force of separated cartridge send bullet device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410210615.7A CN104006704B (en) | 2014-05-19 | 2014-05-19 | The constant force of separated cartridge send bullet device |
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| CN104006704A CN104006704A (en) | 2014-08-27 |
| CN104006704B true CN104006704B (en) | 2016-06-29 |
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| CN201410210615.7A Expired - Fee Related CN104006704B (en) | 2014-05-19 | 2014-05-19 | The constant force of separated cartridge send bullet device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107908926B (en) * | 2017-11-29 | 2021-09-03 | 中国人民解放军63850部队 | Method for determining damage probability of antiaircraft gun with correlation of projectile distribution |
| CN110017727A (en) * | 2019-05-20 | 2019-07-16 | 中国人民解放军军事科学院国防工程研究院 | A kind of high-speed single hull emission test device |
| CN114941966B (en) * | 2022-05-20 | 2023-12-05 | 中国人民解放军63856部队 | Ammunition structure transformation method for improving ammunition drop point visibility for infantry grenade training |
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|---|---|---|---|---|
| GB1213921A (en) * | 1968-03-27 | 1970-11-25 | Tampella Oy Ab | Loading mechanism for guns |
| US6688233B1 (en) * | 2002-09-24 | 2004-02-10 | The United States Of America As Represented By The Secretary Of The Army | System and method for effecting mechanical translation of projectiles in cased telescoped ammunition using smart material |
| CN2833495Y (en) * | 2005-10-14 | 2006-11-01 | 许增海 | Disposable bullet charging device for wheelgun |
| CN202432917U (en) * | 2012-04-11 | 2012-09-12 | 湖北江华机械有限公司 | Feeding mechanism of grenade launcher |
| CN203940779U (en) * | 2014-05-19 | 2014-11-12 | 中国人民解放军军械工程学院 | The constant force of separated cartridge is sent bullet device |
-
2014
- 2014-05-19 CN CN201410210615.7A patent/CN104006704B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1213921A (en) * | 1968-03-27 | 1970-11-25 | Tampella Oy Ab | Loading mechanism for guns |
| US6688233B1 (en) * | 2002-09-24 | 2004-02-10 | The United States Of America As Represented By The Secretary Of The Army | System and method for effecting mechanical translation of projectiles in cased telescoped ammunition using smart material |
| CN2833495Y (en) * | 2005-10-14 | 2006-11-01 | 许增海 | Disposable bullet charging device for wheelgun |
| CN202432917U (en) * | 2012-04-11 | 2012-09-12 | 湖北江华机械有限公司 | Feeding mechanism of grenade launcher |
| CN203940779U (en) * | 2014-05-19 | 2014-11-12 | 中国人民解放军军械工程学院 | The constant force of separated cartridge is sent bullet device |
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Granted publication date: 20160629 |