CN105020317A - Telescopic shock absorber - Google Patents
Telescopic shock absorber Download PDFInfo
- Publication number
- CN105020317A CN105020317A CN201510438833.0A CN201510438833A CN105020317A CN 105020317 A CN105020317 A CN 105020317A CN 201510438833 A CN201510438833 A CN 201510438833A CN 105020317 A CN105020317 A CN 105020317A
- Authority
- CN
- China
- Prior art keywords
- rod
- valve
- shock absorber
- groove
- piston
- Prior art date
Links
- 239000006096 absorbing agents Substances 0.000 title claims abstract description 17
- 230000035939 shock Effects 0.000 title claims abstract description 17
- 238000003780 insertion Methods 0.000 claims abstract description 37
- 239000011257 shell materials Substances 0.000 claims description 30
- 239000011248 coating agents Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000004301 light adaptation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 210000000078 Claw Anatomy 0.000 abstract 2
- 238000000034 methods Methods 0.000 description 8
- 238000010586 diagrams Methods 0.000 description 6
- 230000037250 Clearance Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000035512 clearance Effects 0.000 description 4
- 239000003921 oils Substances 0.000 description 4
- 208000001285 Stress Fractures Diseases 0.000 description 3
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000006073 displacement reactions Methods 0.000 description 2
- 230000000670 limiting Effects 0.000 description 2
- 210000000088 Lip Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 281999990011 institutions and organizations companies 0.000 description 1
- 230000001340 slower Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
Abstract
Description
Technical field
The present invention relates to vibration damper technical field, especially a kind of telescopic shock absorber.
Background technique
Vehicle is when rough ride, and the piston rod in vibration damper constantly does fore and aft motion in cylinder body, and the damping oil in cylinder body constantly flows back and forth, cushion impact forces, slows down degree of jolting and plays cushioning effect, increases the stationarity that vehicle travels.
Telescopic shock absorber generally includes cylindrical shell, the piston rod with hydraulic pressure cavity, one end of piston rod is connected with fitting seat, the piston rod the other end stretches into cylindrical shell and is arranged with piston assembly, piston assembly comprises piston, and piston is provided with trimmer valve, and this trimmer valve comprises valve seat, base, valve block and spring, floor installation is on valve seat, valve block is arranged on base, and valve seat has valve opening, and spring fitting is between valve block and valve seat.Because spring of the prior art adopts helical spring usually, because the precision difficulty of spring is held, stability is not good, the easy deformation failure of spring, the defect such as cause the seal failure of vibration damper, life-span short.Secondly, the top of piston rod inserting end, in its process moved back and forth vertically, can produce with sleeve bottom surface and collide, and causes piston rod inserting end vertex abrasion serious, causes piston assembly to seal uneven, cause the defect of sealing effect difference.Moreover above-mentioned piston rod is provided with oil sealing and guider near one end of fitting seat, because this oil seal lip place is easily out of shape, causes seal failure or cause the phenomenons such as leakage of oil; The connecting end outer circumferential face of piston rod is provided with L shape step surface, fitting seat abuts with this L shape step surface and forms plane-plane contact, but because these two surface of contact are in mutual vertical relation, after the connecting end of piston rod to be threaded with fitting seat and to put in place, can be limited it axially displaced, but due to the surface of contact between fitting seat and L shape step surface can only be spacing in the axial direction, cannot carry out spacing to its gap on radial end face, in use for some time, the potential safety hazard that piston rod is deviate from can still be there is.The insertion rod that above-mentioned piston rod generally includes the body of rod and inserts in fitting seat, insertion rod is welded in rod end usually, but because welding operation has error unavoidably, be difficult to the concentricity ensureing insertion rod and the body of rod, cause vibration damper job insecurity, cause piston rod to occur the problem that early fatigue fracture lost efficacy; In addition, piston rod stretches into the top of the one end in sleeve in its process moved back and forth vertically, can produce with sleeve bottom surface and collide, cause piston rod inserting end vertex abrasion serious, cause piston assembly to seal uneven, cause the defect of sealing effect difference, and sleeve bottom surface is provided with bottom valve, because the shock-absorbing cushioning effect of sleeve bottom surface is poor, in the process of clashing into, bottom valve also can be damaged, and reduces working life.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of sound construction, good sealing effect, good concentricity and safe and reliable telescopic shock absorber.
To achieve these goals, the technical solution used in the present invention is: a kind of telescopic shock absorber, comprise sleeve and piston rod, piston rod one end is stretched into relative with sleeve bottom in sleeve and is provided with piston assembly, the piston rod the other end is connected with fitting seat, piston assembly comprises piston, piston is provided with trimmer valve, trimmer valve comprises base, valve seat, elastic component and valve block, valve seat is connected with base, elastic component and valve block are arranged between base and valve seat, valve seat is provided with opening, elastic member presses valve block and valve block and opening is sealed and matched, piston rod comprises the body of rod, the body of rod is connected with insertion rod towards one end of fitting seat, fitting seat is provided with center hole, insertion rod inserts the center hole of fitting seat, it is characterized in that: described elastic component is annular shell fragment, this annular shell fragment is provided with calvus spaced apart, calvus contacts with valve block, annular shell fragment is provided with boss towards one end of base, this boss is provided with center hole, this center hole extends to annular shell fragment, the described body of rod offers central blind hole towards the end face of insertion rod, tapped hole is provided with bottom this central blind hole, insertion rod one end stretch into body of rod central blind hole and with tapped hole screw thread location fit, this insertion rod outer wall and central blind hole opening end are by being welded and fixed.
In said structure, this elastic component is sheet structure, annular shell fragment is provided with boss, this boss end and base contacts, then being formed between base and annular shell fragment can for the space of calvus generation deformation, calvus is that warp architecture is arranged, the bending direction of this calvus is contrary with the setting direction of boss, calvus is bending towards valve seat direction, valve seat, valve block and annular shell fragment and base are all set in piston rod end, opening is separately positioned on the both sides of valve seat mounting hole, and the calvus free end of annular shell fragment abuts valve block and makes to be formed between valve block and opening to be sealed and matched; Above-mentioned insertion rod is corresponding by forming preliminary center with the body of rod in the central blind hole of the insertion body of rod, behind screw-thread fit location, carry out welding operation again, the concentricity that both guarantees connect is not by the impact of welding procedure, improve its structure stability, overcome because concentricity is not high and occur the problem that piston rod fatigue fracture was lost efficacy.
As the further setting of the present invention, described calvus is crossing in tilting with annular shell fragment, and described calvus edge is extended with flanging, and calvus width is reduced to free end gradually by connecting end.
In said structure, the connecting end width of calvus is greater than free end width, makes this free end have good elastic-restoring force.
As the further setting of the present invention, described valve block is provided with the equally distributed groove in interval towards one end of elastic component, and described flanging is arranged in this groove and abuts with groove inner wall.
In said structure, the groove on this valve block is half elliptic structure, and this flanging is arranged in groove, forms stable contact and coordinates, play anti-skidding, the effect of anti-displacement.
As the further setting of the present invention, the both sides sidewall of described flanging has convex arc edge, and this convex arc edge and groove both sides inwall are formed and closely cooperate.
In said structure, these flanging both sides extrude to be formed by convex globoidal and groove inner wall and coordinate closely, increase linkage structure soundness.
As the further setting of the present invention, described tapped hole bottom surface is provided with centralized positioning salient point, and insertion rod one end stretched in the body of rod is provided with the positioning groove coordinated with centralized positioning salient point.
In said structure, the positioning convex point bottom this tapped hole coordinates with the positioning groove of Inserting Tube and realizes further locating effect.
As the further setting of the present invention, described positioning groove is indent arcuate structure, and described centralized positioning salient point is frustum structure, and the top of this frustum structure is the convex globoidal with positioning groove adaptation.
In said structure, the top of this centralized positioning salient point can be tapered structure, can be also thimble structure, preferably convex globoidal, form the very little location fit in gap with positioning groove inwall, improves concentricity.
As the further setting of the present invention, described body of rod outer circumferential face is provided with circular groove, coating is filled with in this circular groove, coating thickness is annular groove depth twice, this rod end is extended with Rotary-table towards insertion rod one end, one end diameter that this Rotary-table is connected with the body of rod and the isometrical setting of the body of rod, First terrace is formed between the coating of this Rotary-table and body of rod outer wall, second step face is formed, by the sloped sidewall transition and linkage of Rotary-table between this First terrace and second step face between this Rotary-table and insertion rod outer wall.
In said structure, this body of rod outer circumferential face has been coated with PMA coating, improve compactness and the slickness of body of rod outer circumferential face, reduce the fretting wear of piston rod in axial reciprocating moving process and between sleeve, and the first step formed between this coating and Rotary-table is in the face of there being axial limiting effect between the body of rod and fitting seat, eliminate axial clearance, the sloped sidewall of second step face and Rotary-table then eliminates radial clearance between the two, improve radial bearing load ability, extend its working life.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is specific embodiment of the invention structural representation;
Accompanying drawing 2 is the mounting structure schematic diagram of specific embodiment of the invention piston rod and piston assembly;
Accompanying drawing 3 is the mounting structure schematic diagram of specific embodiment of the invention annular shell fragment and valve block;
Accompanying drawing 4 is the structural representation of specific embodiment of the invention annular shell fragment;
Accompanying drawing 5 is the structural representation of specific embodiment of the invention valve block;
Accompanying drawing 6 is the structural representation of specific embodiment of the invention annular shell fragment with convex arc edge;
Accompanying drawing 7 is the structure sectional view of specific embodiment of the invention annular shell fragment;
Accompanying drawing 8 is the piston rod of vibration damper in prior art and the linkage structure schematic diagram of fitting seat;
Accompanying drawing 9 is the linkage structure schematic diagram that the present invention specifically implements piston rod and fitting seat;
Accompanying drawing 10 is the body of rod of specific embodiment of the invention piston rod and the linkage structure schematic diagram of insertion rod;
Accompanying drawing 11 is the cooperating structure schematic diagram of specific embodiment of the invention fitting seat and insertion rod;
Accompanying drawing 12 is the enlarged view of A in specific embodiment of the invention accompanying drawing 10;
Accompanying drawing 13 is the enlarged view of B in specific embodiment of the invention accompanying drawing 10; Sleeve 1, piston rod 2, the body of rod 21, central blind hole 211, tapped hole 212, centralized positioning salient point 213, circular groove 214, Rotary-table 22, sloped sidewall 221, insertion rod 23, First terrace 241, second step face 242, coating 25, fitting seat 3, piston assembly 4, base 41, valve seat 42, opening 421, annular shell fragment 5, calvus 51, flanging 52, convex arc edge 521, boss 53, valve block 6, groove 61.
Embodiment
Specific embodiments of the invention are telescopic shock absorber as shown in figures 1-13, comprise sleeve 1 and piston rod 2, piston rod 2 one end is stretched into relative with bottom sleeve 1 in sleeve 1 and is provided with piston assembly 4, piston rod 2 the other end is connected with fitting seat 3, piston assembly 4 comprises piston, piston is provided with trimmer valve, trimmer valve comprises base 41, valve seat 42, elastic component and valve block 6, valve seat 42 is connected with base 41, elastic component and valve block 6 are arranged between base 41 and valve seat 42, valve seat 42 is provided with opening 421, elastic member presses valve block 6 and valve block 6 and opening 421 is sealed and matched, piston rod 2 comprises the body of rod 21, the body of rod 21 is connected with insertion rod 23 towards one end of fitting seat 3, fitting seat 3 is provided with center hole, insertion rod 23 inserts the center hole of fitting seat 3, elastic component is annular shell fragment 5, this annular shell fragment 5 is provided with calvus 51 spaced apart, calvus 51 contacts with valve block 6, annular shell fragment 5 is provided with boss 53 towards one end of base 41, this boss 53 is provided with center hole, this center hole extends to annular shell fragment 5, the body of rod 21 offers central blind hole 211 towards the end face of insertion rod 23, tapped hole 212 is provided with bottom this central blind hole 211, insertion rod 23 one end stretch into the body of rod 21 central blind hole 211 and with tapped hole 212 screw thread location fit, this insertion rod 23 outer wall and central blind hole 211 opening end are by being welded and fixed.
Above-mentioned elastic component is sheet structure, annular shell fragment 5 is provided with boss 53, this boss 53 end contacts with base 41, the space that deformation can occur for calvus 51 is then formed between base 41 and annular shell fragment 5, calvus 51 is arranged in warp architecture, the bending direction of this calvus 51 is contrary with the setting direction of boss 53, calvus 51 is bending towards valve seat 42 direction, valve seat 42, valve block 6 and annular shell fragment 5 and base 41 are all set in piston rod 2 end, opening 421 is separately positioned on the both sides of valve seat 42 mounting hole, calvus 51 free end of annular shell fragment 5 abuts valve block 6 and makes to be formed between valve block 6 and opening 421 to be sealed and matched, above-mentioned insertion rod 23 is corresponding by forming preliminary center with the body of rod 21 in the central blind hole 211 of insertion rod 23 body 21, behind screw-thread fit location, carry out welding operation again, the concentricity that both guarantees connect is not by the impact of welding procedure, improve its structure stability, overcome because concentricity is not high and occur the problem that piston rod 2 fatigue fracture was lost efficacy.
Above-mentioned calvus 51 is crossing in tilting with annular shell fragment 5, and calvus 51 edge is extended with flanging 52, and calvus 51 width is reduced to free end gradually by connecting end.The connecting end width of calvus 51 is greater than free end width, makes this free end have good elastic-restoring force.
Above-mentioned valve block 6 is provided with the equally distributed groove 61 in interval towards one end of elastic component, and flanging 52 is arranged in this groove 61 and abuts with groove 61 inwall.Groove 61 on this valve block 6 is in half elliptic structure, and this flanging 52 is arranged in groove 61, forms stable contact and coordinates, play anti-skidding, the effect of anti-displacement.
The both sides sidewall of above-mentioned flanging 52 has convex arc edge 521, and this convex arc edge 521 is formed with groove 61 both sides inwall and closely cooperates.These flanging 52 both sides extrude to be formed with groove 61 inwall by convex globoidal and coordinate closely, increase linkage structure soundness.
Above-mentioned tapped hole 212 bottom surface is provided with centralized positioning salient point 213, and insertion rod 23 one end stretched in the body of rod 21 is provided with the positioning groove 61 coordinated with centralized positioning salient point 213.Positioning convex point bottom this tapped hole 212 coordinates with the positioning groove 61 of Inserting Tube and realizes further locating effect.
Above-mentioned positioning groove 61 is in indent arcuate structure, and centralized positioning salient point 213 is in frustum structure, and the top of this frustum structure is the convex globoidal with positioning groove 61 adaptation.The top of this centralized positioning salient point 213 can be tapered structure, can be also thimble structure, preferably convex globoidal, form the very little location fit in gap with positioning groove 61 inwall, improves concentricity.
The above-mentioned body of rod 21 outer circumferential face is provided with circular groove 214, coating 25 is filled with in this circular groove 214, coating 25 thickness is circular groove 214 degree of depth twice, this body of rod 21 end is extended with Rotary-table 22 towards insertion rod 23 one end, one end diameter that this Rotary-table 22 is connected with the body of rod 21 and the isometrical setting of the body of rod 21, First terrace 241 is formed between the coating 25 of this Rotary-table 22 and the body of rod 21 outer wall, second step face 242 is formed between this Rotary-table 22 and insertion rod 23 outer wall, by sloped sidewall 221 transition and linkage of Rotary-table 22 between this First terrace 241 and second step face 242.
The above-mentioned body of rod 21 outer circumferential face has been coated with PMA coating 25, improve compactness and the slickness of the body of rod 21 outer circumferential face, reduce the fretting wear of piston rod 2 in axial reciprocating moving process and between sleeve 1, and between the First terrace 241 pairs of bodies of rod 21 formed between this coating 25 and Rotary-table 22 and fitting seat 3, have axial limiting effect, eliminate axial clearance, second step face 242 then eliminates radial clearance between the two with the sloped sidewall 221 of Rotary-table 22, improve radial bearing load ability, extend its working life.
The present invention is not limited to above-mentioned embodiment; persons skilled in the art are according to content disclosed by the invention; other multiple embodiments can be adopted to implement of the present invention; or every employing project organization of the present invention and thinking; do simple change or change, all fall into protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438833.0A CN105020317B (en) | 2015-07-23 | 2015-07-23 | Telescopic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438833.0A CN105020317B (en) | 2015-07-23 | 2015-07-23 | Telescopic shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020317A true CN105020317A (en) | 2015-11-04 |
| CN105020317B CN105020317B (en) | 2017-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510438833.0A CN105020317B (en) | 2015-07-23 | 2015-07-23 | Telescopic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020317B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870618A (en) * | 2017-03-27 | 2017-06-20 | 苏州市顺仪五金有限公司 | A kind of buffer connecting rods |
| CN108644293A (en) * | 2018-06-01 | 2018-10-12 | 安徽知之信息科技有限公司 | A kind of new-energy automobile shock absorption buffering mechanism |
| CN108779827A (en) * | 2016-03-23 | 2018-11-09 | 不二乳胶株式会社 | Damper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009170A (en) * | 1998-06-23 | 2000-01-11 | Tokico Ltd | Hydraulic shock absorber |
| CN2413087Y (en) * | 1999-04-23 | 2001-01-03 | 淅川汽车配件厂 | Vibration-damper with fastening edge |
| CN2625179Y (en) * | 2003-06-18 | 2004-07-14 | 万向钱潮股份有限公司 | Rear shock-absorber for sedan |
| CN200940656Y (en) * | 2006-06-15 | 2007-08-29 | 万向钱潮股份有限公司 | Compression valve |
| CN202007854U (en) * | 2011-05-09 | 2011-10-12 | 重庆协成毕扬减振器有限公司 | Valve-piece-only type piston valve for automobile shock absorber |
| CN202301711U (en) * | 2011-11-01 | 2012-07-04 | 成都红美金属制品有限公司 | Connecting structure between piston and piston rod in automobile damper |
| CN104534007A (en) * | 2015-01-07 | 2015-04-22 | 青岛思锐科技有限公司 | Air spring shock absorber assembly with internally-arranged type altitude valve |
| CN204387190U (en) * | 2014-12-15 | 2015-06-10 | 重庆东安渠强机械制造有限公司 | Damped cylinder piston mechanism |
-
2015
- 2015-07-23 CN CN201510438833.0A patent/CN105020317B/en active IP Right Grant
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009170A (en) * | 1998-06-23 | 2000-01-11 | Tokico Ltd | Hydraulic shock absorber |
| CN2413087Y (en) * | 1999-04-23 | 2001-01-03 | 淅川汽车配件厂 | Vibration-damper with fastening edge |
| CN2625179Y (en) * | 2003-06-18 | 2004-07-14 | 万向钱潮股份有限公司 | Rear shock-absorber for sedan |
| CN200940656Y (en) * | 2006-06-15 | 2007-08-29 | 万向钱潮股份有限公司 | Compression valve |
| CN202007854U (en) * | 2011-05-09 | 2011-10-12 | 重庆协成毕扬减振器有限公司 | Valve-piece-only type piston valve for automobile shock absorber |
| CN202301711U (en) * | 2011-11-01 | 2012-07-04 | 成都红美金属制品有限公司 | Connecting structure between piston and piston rod in automobile damper |
| CN204387190U (en) * | 2014-12-15 | 2015-06-10 | 重庆东安渠强机械制造有限公司 | Damped cylinder piston mechanism |
| CN104534007A (en) * | 2015-01-07 | 2015-04-22 | 青岛思锐科技有限公司 | Air spring shock absorber assembly with internally-arranged type altitude valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108779827A (en) * | 2016-03-23 | 2018-11-09 | 不二乳胶株式会社 | Damper |
| CN106870618A (en) * | 2017-03-27 | 2017-06-20 | 苏州市顺仪五金有限公司 | A kind of buffer connecting rods |
| CN108644293A (en) * | 2018-06-01 | 2018-10-12 | 安徽知之信息科技有限公司 | A kind of new-energy automobile shock absorption buffering mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105020317B (en) | 2017-11-17 |
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