CN2614341Y - Fire arm recoil cushioning device - Google Patents
Fire arm recoil cushioning device Download PDFInfo
- Publication number
- CN2614341Y CN2614341Y CN 03233608 CN03233608U CN2614341Y CN 2614341 Y CN2614341 Y CN 2614341Y CN 03233608 CN03233608 CN 03233608 CN 03233608 U CN03233608 U CN 03233608U CN 2614341 Y CN2614341 Y CN 2614341Y
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- piston unit
- buffer
- tube
- unit
- recoil
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Abstract
A buffer device of firearm weapon recoil force has a firearm push-rod engaging with an opening port in a closure buffer cavity which has an opening on one end, the buffer cavity corresponding to the push-rod is provided with a sleeve structure with an opening in the same direction at the bottom portion, a circular piston unit with the advancing position limited by a first spacing structure is engaged between the two openings and the circular piston unit can displace between the inner wall of a buffer cavity and the outer wall of the sleeve. A central piston unit is engaged coaxially in the sleeve through a third spacing structure and an offsetting spring and at least the front-end diameter of the central piston unit is smaller than the opening of the sleeve and the front-end opening of the circular piston unit. A second space is arranged between the circular piston unit and the bottom portion of the buffer cavity, a third space is arranged between the central piston unit and the bottom portion of the buffer cavity and buffer springs are respectively arranged in the second space and a first space between the push rod and the circular piston unit. A linkwork reverse mechanism for reversing movements is arranged between the circular piston unit and the central piston unit.
Description
Technical field
The utility model relates to a kind of emission type weapon that can be used for, especially for the slow flushing device of the recoil on the weapons such as low rate of fire firearms.
Background technology
The emission type weapon, particularly as self-action firearms class weapon commonly used, because bullet of every emission, automatic machine will finish multiple to advance, after sit back and wait a working cycles, when the automatic machine moment stop motion and the transformation direction of motion, always have some unnecessary energy can cause violent bump between the weapon parts, the bump when especially putting in place with the breech bolt assembly recoil is the strongest.The bore of weapon is big more, firing rate is high more, and the recoil dump energy is just many more, and impact strength is also just big more, thereby to weapon-shooting precision, part life and make aspect such as shooter's fatigue cause a series of harmful effects.Therefore, for guaranteeing that these weapons can have high rate of fire and still can operate as normal under mal-condition, the buffer unit of automatic machine is an indispensable and very important structure division on this class weapon.
At all kinds of firearms that use at present, what its buffer unit adopted basically all is the spring member of different structure form, by the distortion and/or the frictional force work done of its generation, to absorb as much as possible and excess energy when consuming the recoil.In fact, this effect and effect that is cushioned by the single structure mode often limited to, and also is inadequate, and the excess energy in the time of still can not making the recoil reaches satisfied being absorbed to greatest extent and used up purpose.
The utility model content
At above-mentioned situation, the utility model will provide the buffer unit of the firearms weapon recoil of a kind of improved version and action principle, make it can be by the cooperation of the different modes of action, the buffering by having utilized the antagonism reaction force that produced by its recoil self-acting to carry out particularly, making can both be desirable more and satisfied to the cushioning effect efficient and the effect of firearms weapon recoil.
The structure of the utility model firearms weapon recoil buffer unit is at one end to have in the closed buffer volume structure of opening, and the firearms push rod that can make displacement movement is matched with this peristome.Have an opening and maintain the tube-in-tube structure of spacing in the same way being provided with the buffer volume inwall with corresponding this buffer volume of push rod direction of motion extended line bottom.Can limit the reach position by first position limiting structure and annular piston unit that can displacement between the outer wall of the inwall of buffer volume and tube-in-tube structure being combined with one between this buffer volume opening and tube-in-tube structure opening.In tube-in-tube structure, one center piston unit is arranged through the 3rd position limiting structure and back-moving spring coaxial cooperation, and the point diameter of this center piston unit should be less than the diameter of this tube-in-tube structure opening and the diameter of annular piston unit front opening, so that the front end of this center piston unit can be at this tube-in-tube structure opening and the reciprocal displacement movement of annular piston unit front opening intercropping at least.Wherein, preferred plan is that the point diameter of this center piston unit is cooperated can make it do the slidingtype motion with the inwall of this two opening simultaneously.In the annular piston unit and the center piston unit separately and maintain second cushion space and the 3rd cushion space between the bottom of buffer volume respectively.In first cushion space between this second cushion space and push rod and annular piston unit, be respectively arranged with second buffer spring and first buffer spring.Between annular piston unit and center piston unit and be provided with and make it make the interlock changement of rightabout motion.
The effect of said each position limiting structure in the said structure, be for making the annular piston unit of displacement movement and the displacement movement of center piston unit is limited in the suitable scope with said in the structure, therefore to the form that these position limiting structures adopted and/or the position of setting etc., generally can without particular limitation and requirement, for example, with adopt as the block card of had position-limiting action commonly used, baffle ring, backing pin, retaining groove etc. simply and easily structure for well.The position at place when these position limiting structures are provided with both can be arranged on separately on these motion structure parts, also can be arranged on separately with its work relative another structural member movingly on, or adopt the form be separately positioned between the position that can cooperatively interact therebetween.Wherein, better with reference to one of mode, be the barrier structure that said this first position limiting structure, second position limiting structure and the 3rd position limiting structure is respectively be set in place in the annular convex form at the position, the place ahead of corresponding buffer volume inner structural wall, annular piston unit and tube-in-tube structure in the time of can providing as concrete enforcement.
By above-mentioned structure as can be seen, as the structure that plays cushioning effect, when having kept traditional multi-form spring buffer structure, also increased annular piston unit and center piston unit two structures especially, and the new buffer structure that it is constituted through its interlock changement of doing the rightabout motion is matched.Its course of work is: after the weapon percussion is penetrated bullet, be matched with buffer volume structural openings portion and can make the firearms push rod of displacement movement because of the direction motion of recoil to this buffer volume bottom, and at first obtain buffering by compression to first buffer spring in first cushion space, simultaneously recoil can be passed to the annular piston unit again, and by the annular piston unit second buffer spring in second cushion space be compressed and also to obtain buffering.The mechanism of this buffering and process and present all kinds of spring type buffer units are similar.Because also being combined with one through set interlock changement simultaneously, this annular piston unit in the utility model buffer unit can make the center piston unit that rightabout moves with it, therefore, in above-mentioned annular piston unit because of the recoil effect to buffer volume bottom direction motion and when compressing second buffer spring and cushion, can also drive with it the center piston unit that cooperates by this changement does to push before opposite with the recoil direction moving, and contact mutually with push rod bottom in doing to move backward by its front end, further buffering and offset the recoil of push rod promptly utilizes the opposition that recoil produced of push rod to remove to offset the recoil of the gentle bar of rushing to summit.After buffering course finishes, the back shifting movement that resets under the action of reset spring that the center piston unit is cooperated thereon, elasticity that cooperates second buffer spring simultaneously etc. is advanced power again, can promote the reach of annular piston unit, and advance again under the acting in conjunction of power in the elasticity of first buffer spring, push rod is also finished resetted.
Be appreciated that thus, in the buffer unit of the utility model version, the recoil of push rod is when cushioning by the existing elastic buffer structure that keeps, utilized this recoil self to produce opposition again dexterously, further the recoil of push rod is offset and cushioned, thereby can significantly improve buffering effect and efficient recoil.
In said structure, the said changement that makes annular piston unit and center piston unit do the rightabout motion is the composition pith in the utility model buffer unit.The principle of this mechanism and version generally can be selected for use in transmission mechanism various commonly used that can make two structural members realize that rightabout moves at present and/or member.In like manner, mechanism that is adopted and/or structure, according to the concrete installation position characteristics of firearms weapon, structure is good to try one's best simply and easily.Wherein, a kind of this form that can make heterodromous transmission mechanism for reference when can be used as concrete implement, it is the mechanism that adopts the fluid pressure transfer mode, that is: the communicating structure of offering at said tube-in-tube structure positon of near bottom in said structure and second cushion space and the 3rd cushion space are interconnected, and be filled with fluid pressure therein and transmit medium.Here said fluid pressure transmits medium, can adopt gas commonly used or liquid medium, and wherein best is the hydraulicdriven version that adopts as water, wet goods liquid medium commonly used.
In addition, this another kind of mode that can make heterodromous transmission mechanism of reference during as concrete enforcement, be to adopt mechanical commutation motion, this structure can be for being provided with one or more travelling gears between this annular piston unit and center piston unit, and can be provided with the form of corresponding driving rack on this two-piston unit respectively with the relative position that this travelling gear cooperates.The tooth bar of this travelling gear on the piston unit that is positioned at the one side promotes, and can drive it by the respective rack on the piston unit that is matched with its opposite side and do synchronous rightabout coordinated type motion.
The above-mentioned course of work by the utility model buffer unit is appreciated that, by to this first buffer spring in the structure and the appropriate selection and the use of second buffer spring, and cooperate the center piston unit oppositely before push movingly, the recoil of push rod generally speaking can be by full consumption and absorption.
For preventing accident or under special circumstances, if having some recoils to fail by full consumption and absorption through above-mentioned buffering course is still remaining, above-mentioned structure or on the basis of said structure, also can be easy to be resolved.After the effect of contacting has been implemented to the push rod bottom in said center piston unit, if recognize remaining recoil is arranged, then the still remaining recoil of these of push rod will continue to promote the annular piston unit simultaneously and the center piston unit moves backward, and the second and the 3rd cushion space is produced certain pushing effect.At this moment, if what said heterodromous transmission mechanism adopted in the structure is the mechanism that above-mentioned fluid pressure transmits form of medium, then can consumes and absorb these remaining recoils and finish buffering course by being present in fluid media (medium) in this second and the 3rd cushion space.If what said counter motion transmission mechanism adopted in the said structure is said mechanical switching motion, then can be on the basis of said structure, the further travelling gear that makes in said this commutating structure that adopts is the floating type version that is matched with tube-in-tube structure sidewall position through elastic construction, and by the spring in this floating structure buffering course is finished in further consumption of the recoil of remnants and absorption.
On the basis of said structure,, can also between the position that is in contact with one another of said push rod rear end and center piston unit front end, be provided with the cushion pad unit again for further improving buffering effect.The set-up mode of this cushion pad unit both can be the form at the corresponding site place, rear end that is arranged on push rod, also can be the form at the front end corresponding site place that is arranged on the center piston unit.
Obviously, according to foregoing of the present utility model,,, can also make modification, replacement or the change of other various ways not breaking away under the utility model basic fundamental thought prerequisite according to the ordinary skill knowledge and the customary means of this area.
Below in conjunction with the specific embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.All technology that is realized based on the utility model foregoing all belong to scope of the present utility model.
Description of drawings
Fig. 1 is a kind of structural representation of the buffer unit of the utility model firearms weapon recoil.
The specific embodiment
The buffer unit of the routine firearms weapon of as shown in the figure this recoil is that the firearms push rod 1 that can make displacement movement is matched with this peristome in the closed buffer volume 2 of the cylindrical shape that at one end has an opening 20.With the bottom of corresponding this buffer volume 2 of extended line of the push rod 1 recoil direction of motion, also be provided with in the mode of coaxial line and have an opening 19 and maintain the circular sleeve structure 5 of spacing in the same way with the buffer volume inwall.In the zone between the opening 19 of the opening 20 of this buffer volume 2 and tube-in-tube structure 5, dispose one and can limit the reach position and can be by first position limiting structure 13 along the annular piston 3 of the outer wall intercropping slide displacement of the inwall of buffer volume 2 and tube-in-tube structure 5.This annular piston 3 in the diagram is the forms that also have second position limiting structure of an annular convex form at front end; In a further embodiment, the front end of this annular piston 3 also can be for not having the form of this annular convex second position limiting structure.This first position limiting structure 13 is for being arranged on the desk-top structure of convex annular on buffer volume 2 respective inner walls.In tube-in-tube structure 5, the 3rd position limiting structure 12 and the back-moving spring 10 of convex annular version through being positioned at these tube-in-tube structure 5 front ends, also coaxial cooperation has bottom, rear end to have the center piston 4 of annular boss structure 11, and the diameter of the column type front portion of center piston 4 is as the criterion can be simultaneously to cooperate as sliding motion with the front opening 15 of the opening 19 of tube-in-tube structure 5 and annular piston unit 3.This back-moving spring 10 is arranged on 12 of the base circle boss structure 11 of center piston 4 and the 3rd position limiting structures, but and also be provided with auxiliary cushion pad 14 at the base circle boss structure 11 of this center piston 4 place, contact site relative with the 3rd position limiting structure 12, to prevent to make because of the excessive reach of this center piston 4 under special circumstances the annular boss structure 11 and the disadvantageous bump of the 3rd position limiting structure 12 generations of its bottom.The relative position form that is arranged on the 3rd position limiting structure 12 1 sides that wherein illustrated this cushion pad 14 adopts.In annular piston 3 and center piston 4 separately and between the bottom of buffer volume 2, remain with second cushion space 7 and the 3rd cushion space 9 respectively, and this two cushion space can be through being arranged on these tube-in-tube structure 5 positon of near bottom passage 8 and be interconnected, and be filled with the liquid medium that is used to transmit pressure in this two cushion space, so that this annular piston 3 and center piston 4 can realize doing rightabout displacement movement by the hydraulic pressure transfer mode.In second cushion space 7, matching with annular piston 3 is provided with second buffer spring 6 of dish; In first cushion space 17 between push rod 1 and annular piston unit 3, be provided with first buffer spring 16 of dish.Push rod 1 rear end can with the corresponding site place of end in contact before the center piston unit 4, also be provided with a cushion pad 18.
Claims (10)
1. the buffer unit of firearms weapon recoil, it is characterized in that at one end having in the closed buffer volume structure (2) of opening (20), the firearms push rod (1) that can make displacement movement is matched with this peristome, have an opening (19) and maintain the tube-in-tube structure (5) of spacing in the same way being provided with the buffer volume inwall with push rod (1) corresponding this buffer volume of direction of motion extended line (2) bottom, can limit the reach position by first position limiting structure (13) and annular piston unit (3) that can displacement between the outer wall of the inwall of buffer volume (2) and tube-in-tube structure (5) being combined with one between this buffer volume (2) opening (20) and tube-in-tube structure (5) opening (19), in tube-in-tube structure (5), one center piston unit (4) is arranged through the 3rd position limiting structure (12) and back-moving spring (10) coaxial cooperation, and the point diameter of this center piston unit (4) should be less than the diameter of tube-in-tube structure (5) opening (19) and the diameter of annular piston unit (3) front opening (15) at least, in annular piston unit (3) and center piston unit (4) separately and maintain second cushion space (7) and the 3rd cushion space (9) between the bottom of buffer volume (2) respectively, be respectively arranged with second buffer spring (6) and first buffer spring (16) in first cushion space between second cushion space (7) and push rod (1) and annular piston unit (3), between annular piston unit (3) and center piston unit (4) and be provided with and make it make the interlock changement of rightabout motion.
2. the buffer unit of firearms weapon recoil as claimed in claim 1, it is characterized in that the said changement that makes annular piston unit (3) and center piston unit (4) do the rightabout motion is a fluid pressure delivery type mechanism, be filled with fluid pressure in second cushion space (7) that is interconnected at the communicating structure of offering through tube-in-tube structure (5) positon of near bottom (8) and the 3rd cushion space (9) and transmit medium.
3. the buffer unit of firearms weapon recoil as claimed in claim 2 is characterized in that it is liquid medium that the fluid pressure of filling transmits medium in said second cushion space (7) that is being interconnected and the 3rd cushion space (9).
4. the buffer unit of firearms weapon recoil as claimed in claim 2 is characterized in that it is gas medium that the fluid pressure of filling transmits medium in said second cushion space (7) that is being interconnected and the 3rd cushion space (9).
5. the buffer unit of firearms weapon recoil as claimed in claim 1, it is characterized in that the said changement that makes annular piston unit (3) and center piston unit (4) do the rightabout motion is the mechanical switching structure, the driving rack two-part structure composition that is included in the travelling gear that is provided with between this two-piston unit and is provided with the corresponding site place that on the two-piston unit, can cooperate with this travelling gear respectively.
6. the buffer unit of firearms weapon recoil as claimed in claim 5 is characterized in that the travelling gear in the said commutating structure is the floating structure form that is matched with tube-in-tube structure (5) sidewall position through elastic construction.
7. as the buffer unit of the described firearms weapon of one of claim 1 to 6 recoil, it is characterized in that said in push rod (1) rear end and center piston unit (4) but also be provided with cushion pad unit (18) between the contact site of front end.
8. the buffer unit of firearms weapon recoil as claimed in claim 7 is characterized in that said cushion pad unit (18) is arranged on the corresponding site place of push rod (1) rear end.
9. as the buffer unit of the described firearms weapon of one of claim 1 to 6 recoil, it is characterized in that said first position limiting structure (13) and the 3rd position limiting structure (12) are the barrier structure of the annular convex form that is arranged at corresponding buffer volume (2) inwall, annular piston unit (3) and tube-in-tube structure (5) position, the place ahead respectively.
10. as the buffer unit of the described firearms weapon of one of claim 1 to 6 recoil, it is characterized in that the said back-moving spring (10) that matches with center piston unit (4) is arranged between the bottom boss structure (11) and the 3rd position limiting structure (12) of center piston (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233608 CN2614341Y (en) | 2003-03-21 | 2003-03-21 | Fire arm recoil cushioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233608 CN2614341Y (en) | 2003-03-21 | 2003-03-21 | Fire arm recoil cushioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614341Y true CN2614341Y (en) | 2004-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03233608 Expired - Fee Related CN2614341Y (en) | 2003-03-21 | 2003-03-21 | Fire arm recoil cushioning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2614341Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011832A (en) * | 2010-12-17 | 2011-04-13 | 南京航空航天大学 | Mechanical buffer and attitude adjusting device |
| CN102288070A (en) * | 2011-08-26 | 2011-12-21 | 王志彬 | Gas-delayed recoiling method |
| CN102538577A (en) * | 2012-02-15 | 2012-07-04 | 重庆建设工业(集团)有限责任公司 | Novel buffering device |
| CN104236383A (en) * | 2013-06-11 | 2014-12-24 | 张军帅 | Gun recoil force eliminators |
| CN106152875A (en) * | 2014-01-02 | 2016-11-23 | 朱明� | A kind of recoil brak of light mortar |
| CN106767154A (en) * | 2016-12-29 | 2017-05-31 | 雷神科技（天津）有限公司 | A kind of rain shell launcher |
-
2003
- 2003-03-21 CN CN 03233608 patent/CN2614341Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011832A (en) * | 2010-12-17 | 2011-04-13 | 南京航空航天大学 | Mechanical buffer and attitude adjusting device |
| CN102011832B (en) * | 2010-12-17 | 2012-11-21 | 南京航空航天大学 | Mechanical buffer and attitude adjusting device |
| CN102288070A (en) * | 2011-08-26 | 2011-12-21 | 王志彬 | Gas-delayed recoiling method |
| CN102538577A (en) * | 2012-02-15 | 2012-07-04 | 重庆建设工业(集团)有限责任公司 | Novel buffering device |
| CN102538577B (en) * | 2012-02-15 | 2013-10-30 | 重庆建设工业(集团)有限责任公司 | Buffering device |
| CN104236383A (en) * | 2013-06-11 | 2014-12-24 | 张军帅 | Gun recoil force eliminators |
| CN106152875A (en) * | 2014-01-02 | 2016-11-23 | 朱明� | A kind of recoil brak of light mortar |
| CN106152875B (en) * | 2014-01-02 | 2017-08-25 | 朱明� | A kind of recoil brak of light mortar |
| CN106767154A (en) * | 2016-12-29 | 2017-05-31 | 雷神科技（天津）有限公司 | A kind of rain shell launcher |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |