CN104554329B - Rail traffic vehicles buffer unit - Google Patents
Rail traffic vehicles buffer unit Download PDFInfo
- Publication number
- CN104554329B CN104554329B CN201410824547.3A CN201410824547A CN104554329B CN 104554329 B CN104554329 B CN 104554329B CN 201410824547 A CN201410824547 A CN 201410824547A CN 104554329 B CN104554329 B CN 104554329B
- Authority
- CN
- China
- Prior art keywords
- buffer
- sleeve
- gland
- housing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 76
- 210000004907 gland Anatomy 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 241000271559 Dromaiidae Species 0.000 abstract description 3
- 238000012536 packaging technology Methods 0.000 abstract description 3
- 230000002040 relaxant effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/08—Buffers with rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/12—Buffers with fluid springs or shock-absorbers; Combinations thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of rail traffic vehicles buffer unit, suitable for relaxing longitudinal impulse between EMUs and railcar, including buffer, nut, ring spring, sleeve, rubber ball bearing, anti-rotation bar and baffle ring, also include snap ring, joint and pre- gland, the housing forward end of buffer is fixedly connected with joint, the rear of buffer is inserted into sleeve and is slidably matched with sleeve, the rear end of ring spring offsets with baffle ring, step in the rear end and sleeve of baffle ring offsets, pre- gland is sleeved on the housing of buffer, nut thread is connected to the front end of sleeve, and offseted with pre- gland, the rear end of the housing of buffer is additionally provided with annular boss, the inwall of annular boss and sleeve is slidably matched, the front end of annular boss can offset with the rear end of baffle ring, annular boss is provided with anti-rotation groove, anti-rotation bar is arranged in sleeve, anti-rotation groove and anti-rotation bar axial sliding fit.Packaging technology of the present invention is good, small volume, lightweight, compact conformation.
Description
Technical field
It is to be used to relax between EMUs and railcar to indulge the present invention relates to a kind of rail traffic vehicles buffer unit
To impulsion, the buffer unit of riding comfort is improved, is a part for hitch buffer system.
Background technology
In order to improve the riding comfort of EMUs, railcar, reduce the longitudinal impact force of hitch between each compartment, at present
EMU, the car end connection of railcar generally use high-performance buffer unit.Conventional high-performance buffer unit is main
There are rubber bumper, daub buffer, Liquid and gas damper elastomeric bumpers etc., wherein Liquid and gas damper is so that its capacity is big, body
Small, the lightweight feature of product is used widely in EMU, railcar.
Load is impacted in the tension and compression that rail traffic vehicles are mainly used in relaxing between EMU and railcar with buffer unit
Lotus, improves riding comfort.Existing buffer unit is main by draw bar, buffer, nut, ring spring, sleeve and rubber
Ball bearing etc. is constituted.The buffer unit is compression-independent buffer unit, and tension impact load is relaxed by ring spring, compression punching
Load is hit to be relaxed by buffer.Because the buffer unit is necessary for the draw bar of ring spring and anti-rotation bar design specialized, it is used for
The anti-rotation groove installed on ring spring and draw bar prevents the rotation of draw bar and sleeve with the cooperation of anti-rotation bar, so volume,
Quality is larger；Simultaneously as ring spring needs to apply 70kN or so precompression in assembling, in prior art construction
In, all precompressions progressively apply by nut during screwing, and the result thus brought is that nut is very tired
Difficulty, while screw back nut and ring spring surface has a scuffing, therefore prior art has that volume, quality be larger and assembling work
The shortcoming of skill difference.
The content of the invention
It is an object of the invention to provide a kind of packaging technology it is good, reduce the track of volume and weight and compact conformation
Vehicular traffic buffer unit.
In order to achieve the above object, the technical scheme is that：A kind of rail traffic vehicles buffer unit, including it is slow
Device, nut, ring spring, sleeve, rubber ball bearing, anti-rotation bar and baffle ring are rushed, the rubber ball bearing is installed on the tail of sleeve
Portion, the buffer includes housing and the piston rod with Telescopic, and the outer end of piston rod and the inner wall of sleeve offset,
Also include snap ring, joint and pre- gland, the snap ring is mounted in the front portion of joint, and housing forward end and the joint of the buffer are fixed
Connection, the rear of buffer is inserted into sleeve and is slidably matched with sleeve, and the ring spring and baffle ring are arranged on slow
Rush between the housing of device and sleeve, the rear end of ring spring and the front end of baffle ring offset, the step in the rear end and sleeve of baffle ring
Offset, the pre- gland is sleeved on the housing of buffer, pre- gland is against the front end of ring spring, nut thread is connected to set
The front end of cylinder, and offseted with pre- gland, the rear end of the housing of the buffer is additionally provided with annular boss, annular boss and sleeve
Inwall be slidably matched, the front end of annular boss can offset with the rear end of baffle ring, and annular boss is provided with anti-rotation groove, described anti-
Turn bar in sleeve, anti-rotation groove and anti-rotation bar axial sliding fit.
The buffer is Liquid and gas damper.
Or the buffer is daub buffer.
The pre- gland includes the anterior and convex circular rear of cylindrical shape, and the inner ring of nut is enclosed on the cylindrical shape front portion of pre- gland
On, the rear end of nut and the convex circular rear of pre- gland offset.
Anti-rotation groove on the buffer is arranged on the bottom of the annular boss of buffer, and the anti-rotation bar is arranged on sleeve
Interior bottom, the anti-rotation bar is fixed by screws in the bottom in sleeve.
The pre- gland is a circle set.Or the pre- gland is combined into a circle set by two semi-rings.
Annular boss on the housing of the buffer is formed integrally or is threadedly coupled or weld with housing.
The housing forward end of the buffer is connected or welded with joint screw thread.
Beneficial effects of the present invention are：As a result of pre- gland, make the pre- gland of nut check, it is to avoid in original technology
The difficult situation of the screw-in of nut, does not result in the scuffing of nut and ring spring, packaging technology is good yet；Simultaneously as slow
Rushing has annular boss on the housing of device, and add anti-rotation groove in annular boss, coordinates with the anti-rotation bar installed in sleeve, i.e.,
The relative rotation between buffer and sleeve can be prevented, it is no longer necessary to the draw bar in original technology, subtract buffer unit volume
Small, weight saving, compact conformation.Because the front end of annular boss can offset with the rear end of baffle ring, annular boss also acts as limit
The effect of position, makes buffer on the premise of no draw bar, will not lose pooling feature by all pulling out.
Brief description of the drawings
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the rail traffic vehicles buffer unit of the present invention；
Fig. 2 is Fig. 1 stereogram；
Fig. 3 is the structural representation of the buffer in Fig. 1；
Fig. 4 is Fig. 1 compressive state schematic diagram；
Fig. 5 is Fig. 1 extended state schematic diagram；
Fig. 6 is Fig. 1 I portions enlarged diagram；
Fig. 7 is the schematic diagram of nut, pre- gland and ring spring before sleeve is assembled into Fig. 1；
Fig. 8 is the dimensional structure diagram of another pre- gland.
Embodiment
As shown in figs. 1-7, rail traffic vehicles buffer unit of the invention, including buffer 3, nut 4, ring spring
6th, sleeve 7, rubber ball bearing 8, anti-rotation bar 9 and baffle ring 10, the rubber ball bearing 8 are installed on the afterbody of sleeve 7, the buffering
Device 3 includes housing 3-1 and the piston rod 3-3 with Telescopic, piston rod 3-3 outer end offset with the inner wall of sleeve 7,
Also include snap ring 1, joint 2 and pre- gland 5, the snap ring 1 is mounted in the front portion of joint 2, the housing 3-1 front ends of the buffer 3
It is fixedly connected with joint 2, the housing 3-1 rear portions of buffer 3 are inserted into sleeve 7 and are slidably matched with sleeve 7, the annular elastomeric
Spring 6 and baffle ring 10 are arranged between the housing 3-1 of buffer 3 and sleeve 7, the rear end of ring spring 6 and the front end phase of baffle ring 10
Support, rear end and the step 7-1 in sleeve 7 of baffle ring 10 are offseted, and the pre- gland 5 is sleeved on the housing 3-1 of buffer 3, in advance
Gland 5 is against the front end of ring spring 6, and nut 4 is threaded in the front end of sleeve 7, and is offseted with pre- gland 5, the buffering
The housing 3-1 of device 3 rear end is additionally provided with annular boss 3-2, and annular boss 3-2 and sleeve 7 inwall are slidably matched, convex annular
Platform 3-2 front end can be offseted with the rear end of baffle ring 10, and annular boss 3-2 is provided with anti-rotation groove 3-2-1, and the anti-rotation bar 9 is pacified
In sleeve 7, anti-rotation groove 3-2-1 and the axial sliding fit of anti-rotation bar 9.The outer circumference surface of nut 4 is provided with external screw thread, sleeve 7
Front end inner peripheral surface be provided with internal thread.
The buffer 3 is Liquid and gas damper.The internal structure of the Liquid and gas damper can use Chinese patent literature
Structure disclosed in CN2321975Y, it would however also be possible to employ the structure disclosed in Chinese patent literature CN200957821Y.
Buffer 3 in the present invention can also use the daub buffer of prior art.
As shown in Figure 6,7, the pre- gland 5 includes cylindrical shape front portion 5-1 and convex circular rear 5-2, the interior snare of nut 4
On the cylindrical shape front portion 5-1 of pre- gland 5, the rear end of nut 4 and the convex circular rear 5-2 of pre- gland 5 offset.
As shown in Fig. 1,3,4,5, the anti-rotation groove 3-2-1 on the buffer 3 is arranged on the annular boss 3-2 of buffer 3
Bottom, the anti-rotation bar 9 be arranged on sleeve 7 in bottom, under the anti-rotation bar 9 is fixed in sleeve 7 by screw 11
Portion.
As shown in fig. 7, the pre- gland 5 is a circle set.As shown in figure 8, or the pre- gland 5 by two and half ring groups
Synthesize a circle set.
As shown in Figure 1,3, the annular boss 3-2 on the housing 3-1 of the buffer 3 and housing 3-1 is formed integrally or spiral shell
Line is connected or welded.The housing 3-1 front ends of the buffer 3 are threadedly coupled or welded with joint 2.
As shown in fig. 7, during present invention assembling, after ring spring 6 loads sleeve 7, first pre- gland 5 being loaded and applies one
Fixed load（About 70kN）, then nut 4 screwed in into sleeve, then unload, that is, complete the assembling to the present invention.
As shown in figure 4, when the present invention bears compressive load, buffer 3 is compressed, plays cushioning effect；
As shown in figure 5, when the present invention is stretched load, the rear end that annular boss 3-2 front end can be with baffle ring 10
Offset；Ring spring 6 is compressed, plays cushioning effect.
Claims (9)
1. a kind of rail traffic vehicles buffer unit, including buffer（3）, nut（4）, ring spring（6）, sleeve（7）, rubber
Glueballs bearing（8）, anti-rotation bar（9）And baffle ring（10）, the rubber ball bearing（8）It is installed on sleeve（7）Afterbody, the buffering
Device（3）Including housing（3-1）With the piston rod with Telescopic（3-3）, piston rod（3-3）Outer end and sleeve（7）It is interior
End wall surface offsets, it is characterised in that：
A in addition to snap ring（1）, joint（2）With pre- gland（5）,
B, the snap ring（1）Mounted in joint（2）Front portion,
C, the buffer（3）Housing（3-1）Front end and joint（2）It is fixedly connected, buffer（3）Housing（3-1）Rear portion
It is inserted into sleeve（7）In and and sleeve（7）It is slidably matched,
D, the ring spring（6）And baffle ring（10）Installed in buffer（3）Housing（3-1）And sleeve（7）Between, annular elastomeric
Spring（6）Rear end and baffle ring（10）Front end offset, baffle ring（10）Rear end and sleeve（7）Interior step（7-1）Offset,
E, the pre- gland（5）It is sleeved on buffer（3）Housing（3-1）On, pre- gland（5）It is against ring spring（6）Before
End, nut（4）It is threaded in sleeve（7）Front end, and with pre- gland（5）Offset,
F, the buffer（3）Housing（3-1）Rear end be additionally provided with annular boss（3-2）, annular boss（3-2）With sleeve
（7）Inwall be slidably matched, annular boss（3-2）Front end can be with baffle ring（10）Rear end offset, annular boss（3-2）On
Provided with anti-rotation groove（3-2-1）, the anti-rotation bar（9）Installed in sleeve（7）It is interior, anti-rotation groove（3-2-1）With anti-rotation bar（9）It is axially sliding
It is dynamic to coordinate.
2. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The buffer（3）It is gas
Liquid buffer.
3. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The buffer（3）It is glue
Cement buffer.
4. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The pre- gland（5）Including
Cylindrical shape is anterior（5-1）With convex circular rear（5-2）, nut（4）Inner ring be enclosed on pre- gland（5）Cylindrical shape it is anterior（5-1）
On, nut（4）Rear end and pre- gland（5）Convex circular rear（5-2）Offset.
5. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The buffer（3）On
Anti-rotation groove（3-2-1）It is arranged on buffer（3）Annular boss（3-2）Bottom, the anti-rotation bar（9）Installed in sleeve（7）
Interior bottom, the anti-rotation bar（9）Pass through screw（11）It is fixed on sleeve（7）Interior bottom.
6. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The pre- gland（5）For one
Individual circle set.
7. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The pre- gland（5）By two
Individual semi-ring is combined into a circle set.
8. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The buffer（3）Shell
Body（3-1）On annular boss（3-2）With housing（3-1）It is formed integrally or is threadedly coupled or welds.
9. rail traffic vehicles buffer unit according to claim 1, it is characterised in that：The buffer（3）Shell
Body（3-1）Front end and joint（2）Threaded connection is welded.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824547.3A CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
| PCT/CN2015/099146 WO2016101925A1 (en) | 2014-12-26 | 2015-12-28 | Buffer, railway vehicle buffer apparatus, and buffer system thereof |
| CN201590001221.9U CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
| PCT/CN2015/099141 WO2016101924A1 (en) | 2014-12-26 | 2015-12-28 | Railway vehicle buffer apparatus and assembling method and buffer system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824547.3A CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104554329A CN104554329A (en) | 2015-04-29 |
| CN104554329B true CN104554329B (en) | 2017-07-21 |
Family
ID=53071662
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410824547.3A Active CN104554329B (en) | 2014-12-26 | 2014-12-26 | Rail traffic vehicles buffer unit |
| CN201590001221.9U Active CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U Active CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201590001221.9U Active CN207842949U (en) | 2014-12-26 | 2015-12-28 | Buffer, rail vehicle buffer unit and its buffer system |
| CN201590001217.2U Active CN207579876U (en) | 2014-12-26 | 2015-12-28 | Rail vehicle buffer unit and buffer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104554329B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101924A1 (en) * | 2014-12-26 | 2016-06-30 | 中车戚墅堰机车车辆工艺研究所有限公司 | Railway vehicle buffer apparatus and assembling method and buffer system thereof |
| CN105270432A (en) * | 2015-11-24 | 2016-01-27 | 天津机辆轨道交通装备有限责任公司 | Large power locomotive buffer |
| CN105715724A (en) * | 2016-01-26 | 2016-06-29 | 中国科学院力学研究所 | Thin-wall energy absorption cylinder and buckling mode controlling method thereof |
| CN107117184A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of shipping motor-car even worries leading-in device |
| CN107139952A (en) * | 2017-06-23 | 2017-09-08 | 中车资阳机车有限公司 | A kind of arrow gauge hopper wagon |
| CN107117185A (en) * | 2017-06-23 | 2017-09-01 | 中车资阳机车有限公司 | A kind of type hand even hangs buffer structure |
| CN107685746B (en) * | 2017-09-12 | 2019-04-26 | 河海大学常州校区 | A kind of vehicle bumper connector |
| CN109849961B (en) * | 2017-11-30 | 2020-07-10 | 比亚迪股份有限公司 | Coupler and coupler buffering device |
| CN111098882B (en) * | 2018-10-29 | 2024-05-28 | 中车制动***有限公司 | Coupler buffer device |
| CN110261018B (en) * | 2019-04-30 | 2020-10-30 | 株洲壹星科技股份有限公司 | Floating type vehicle door pressure detector and rail vehicle door pressure detection method |
| CN111591145A (en) * | 2020-06-03 | 2020-08-28 | 南京铁道职业技术学院 | Traction motor driving part for subway operation |
| CN112224420B (en) * | 2020-10-14 | 2023-12-05 | 航宇救生装备有限公司 | Crash-resistant seat capable of changing load and absorbing energy |
| CN113294404B (en) * | 2021-04-20 | 2022-11-11 | 上海机电工程研究所 | Momentum and energy absorption device shared by rubber and daub |
| CN113335335B (en) * | 2021-07-12 | 2023-01-24 | 中车制动***有限公司 | Railway vehicle buffer device and coupler buffer system |
| CN113911161B (en) * | 2021-09-18 | 2022-09-27 | 株洲时代新材料科技股份有限公司 | Vehicle-end traction connecting device for rescue |
| CN113968257B (en) * | 2021-12-01 | 2023-04-07 | 中车制动***有限公司 | Vehicle end buffering energy-absorbing device |
| CN117470639B (en) * | 2023-12-22 | 2024-04-09 | 深圳大学 | Energy absorption buffer device and method applied to dynamic true triaxial electromagnetic Hopkinson bar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2745164A1 (en) * | 1977-09-13 | 1979-03-22 | Alusuisse | Railway wagon spring loaded telescopic hydraulic buffer - has variable opening cross partition for hydraulic fluid in high pressure chamber |
| EP0578187A1 (en) * | 1992-07-07 | 1994-01-12 | Ringfeder GmbH | Elastic shock absorbing device, especially for railway buffers |
| CN2321975Y (en) * | 1998-04-21 | 1999-06-02 | 北京天和新技术开发公司 | Liquid and gas damper |
| US6047839A (en) * | 1998-02-03 | 2000-04-11 | Huggins; Russell J. | Rail car buffer |
| CN200957821Y (en) * | 2006-10-26 | 2007-10-10 | 中国南车集团北京二七车辆厂 | Liquid-vapor buffer |
| CN204383491U (en) * | 2014-12-26 | 2015-06-10 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of rail traffic vehicles shock absorber |
-
2014
- 2014-12-26 CN CN201410824547.3A patent/CN104554329B/en active Active
-
2015
- 2015-12-28 CN CN201590001221.9U patent/CN207842949U/en active Active
- 2015-12-28 CN CN201590001217.2U patent/CN207579876U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2745164A1 (en) * | 1977-09-13 | 1979-03-22 | Alusuisse | Railway wagon spring loaded telescopic hydraulic buffer - has variable opening cross partition for hydraulic fluid in high pressure chamber |
| EP0578187A1 (en) * | 1992-07-07 | 1994-01-12 | Ringfeder GmbH | Elastic shock absorbing device, especially for railway buffers |
| US6047839A (en) * | 1998-02-03 | 2000-04-11 | Huggins; Russell J. | Rail car buffer |
| CN2321975Y (en) * | 1998-04-21 | 1999-06-02 | 北京天和新技术开发公司 | Liquid and gas damper |
| CN200957821Y (en) * | 2006-10-26 | 2007-10-10 | 中国南车集团北京二七车辆厂 | Liquid-vapor buffer |
| CN204383491U (en) * | 2014-12-26 | 2015-06-10 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of rail traffic vehicles shock absorber |
Non-Patent Citations (1)
| Title |
|---|
| 广深港动车组用车钩缓冲装置概述;郑伟等;《铁路技术创新》;20140930(第4期);第19-26页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207579876U (en) | 2018-07-06 |
| CN207842949U (en) | 2018-09-11 |
| CN104554329A (en) | 2015-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104554329B (en) | Rail traffic vehicles buffer unit | |
| DE502005007094D1 (en) | AIR SPRING-vibration damper unit | |
| CN210149548U (en) | Undercarriage with oil gas buffering type longitudinal buffeting vibration damper | |
| CN204383491U (en) | A kind of rail traffic vehicles shock absorber | |
| CN103523142A (en) | Upside-down motorcycle front shock absorber | |
| CN207403800U (en) | A kind of training gear of vehicle transmission shaft | |
| CN1978935A (en) | Self-adjusting buffering bumper for motorcycle | |
| CN212004077U (en) | Damping device for automotive suspension | |
| CN203473156U (en) | Tricycle frame with rear suspension of cylinder-type shock absorption type | |
| CN203297506U (en) | Novel spring shock absorber | |
| CN101210599A (en) | Motorcycle shock absorber | |
| CN202319768U (en) | Bidirectional buffering traction device | |
| CN204250191U (en) | Rear-suspending assembly | |
| CN104442337A (en) | Automobile power assembly suspension structure | |
| CN109703312A (en) | A kind of automotive suspension damping | |
| CN203297504U (en) | Rear shock absorber | |
| CN208935249U (en) | A kind of adjustment suspension shock-absorber | |
| CN201712697U (en) | Air cushion damping saddle of bicycle | |
| CN203395070U (en) | Improved spring shock absorber | |
| CN202765199U (en) | Rear shock absorber | |
| CN202971713U (en) | Shock absorber of motorcycle | |
| CN205533971U (en) | Automobile shock absorber utensils liquid receiver | |
| CN203926581U (en) | A kind of improved type automobile absorber | |
| CN202520849U (en) | Vehicle vibration absorber | |
| CN214823790U (en) | Motorcycle base convenient to change installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Jiangsu, Changzhou, No. 258 Applicant after: CRRC QISHUYAN INSTITUTE CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: CRRC QISHUYAN INSTITUTE CO., LTD. |
|
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20150429 Assignee: CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD. Assignor: CRRC QISHUYAN INSTITUTE CO., LTD. Contract record no.: 2019320000099 Denomination of invention: Buffer device for rail transit vehicle Granted publication date: 20170721 License type: Common License Record date: 20190410 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CB03 | Change of inventor or designer information |
Inventor after: Du Liqing Inventor after: Zhang Jinwei Inventor after: Wu Gang Inventor after: Ma Tao Inventor after: Hu Xiaoshan Inventor after: Liu Yunqing Inventor before: Zhang Jinwei Inventor before: Wu Gang Inventor before: Ma Tao Inventor before: Hu Xiaoshan Inventor before: Du Liqing |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220525 Address after: 266111 South Side of Xinye Road and West Side of Herong Road, Qingdao Hi-tech Industrial Development Zone, Shandong Province Patentee after: CRRC Brake System Co.,Ltd. Address before: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right |