CN203766809U - Energy absorption device at front end of railway vehicle and railway vehicle - Google Patents
Energy absorption device at front end of railway vehicle and railway vehicle Download PDFInfo
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- CN203766809U CN203766809U CN201320798144.7U CN201320798144U CN203766809U CN 203766809 U CN203766809 U CN 203766809U CN 201320798144 U CN201320798144 U CN 201320798144U CN 203766809 U CN203766809 U CN 203766809U
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- energy absorption
- absorption device
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- pilot bar
- energy
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Abstract
The utility model discloses an energy absorption device at the front end of a railway vehicle and the railway vehicle. The energy absorption device at the front end of the railway vehicle comprises a climbing preventing plate, a first energy absorption part and a second energy absorption part, wherein a plurality of transversely-arranged climbing preventing teeth are arranged on the climbing preventing plate. The first energy absorption part comprises a first energy absorption device, a first guiding rod and a first installation plate, wherein one end of the first energy absorption device is connected to the climbing preventing plate, the other end of the first energy absorption device is connected to the first installation plate, one end of the first guiding rod is fixedly installed on the climbing preventing plate, and the other end of the first guiding rod penetrates through the first installation plate and is connected with the first installation plate in a slideable mode. The second energy absorption part comprises a second energy absorption device, a second guiding rod and a second installation plate, wherein one end of the second energy absorption device is connected to the first installation plate, the other end of the second energy absorption device is connected to the second installation plate, one end of the second guiding rod is fixedly installed on the first installation plate, and the other end of the second guiding rod penetrates through the second installation plate and is connected with the second installation plate in a slideable mode. Due to front-rear dual-stage individual energy absorption, the energy absorption distance of the energy absorption device is long, the energy absorption amount of the energy absorption device is large, and the energy absorption device is convenient to replace. The utility model further discloses the railway vehicle.
Description
Technical field
The utility model relates to guideway vehicle manufacturing technology field, particularly a kind of guideway vehicle front end energy absorption device and guideway vehicle.
Background technology
Compare with other public transport, track traffic has land used and economizes, capacity is large, energy-conservation, safe, comfortable, quick, adopt driven by power, the features such as environmental pollution is little, it not only plays huge impetus to economical and social development, and is the important symbol of a national economy social development levels.Along with scientific and technological progress and the quickening of Urbanization in China, the safety in operation of track traffic more and more receives people's concern.Guideway vehicle collision case is one of main reason causing passenger's heavy casualties, for reducing injures and deaths, and protection passenger safety, passive security guard technology arises at the historic moment, and through years development, has become and has ensured the very important engineering technology of guideway vehicle safe in operation.And energy absorption device is as the indispensable component part of vehicle passive security protective system, avoids collision case injury for protection passenger and play an important role.
In prior art, energy-absorbing mainly relies on energy-absorbing hitch, and energy absorption device is installed on hitch, in the time that energy absorption device is subject to impacting, will conquassation, thus protection car body.But the energy absorption of this energy-absorbing hitch is less, while being subject to intense impact, role is less, is difficult to reach protection car body and passenger's requirement.
Therefore, how to provide a kind of energy absorption device, make it have larger energy absorption, when for guideway vehicle, can absorption as much as possible clash into the energy producing, protection car body and passenger, become those skilled in the art's important technological problems urgently to be resolved hurrily.
Utility model content
In view of this; the utility model provides a kind of guideway vehicle front end energy absorption device and guideway vehicle, makes energy absorption device have larger energy absorption, to reach when for guideway vehicle; can absorption as much as possible clash into the energy producing, protection car body and passenger's object.
For achieving the above object, the utility model provides following technical scheme:
A kind of guideway vehicle front end energy absorption device, comprising:
Anti-creep plate, is provided with the multiple anti-climbing tooth of horizontally set on it;
The first energy-absorbing portion, comprise the first energy absorption device, the first pilot bar and the first adapter plate, described first energy absorption device one end is connected on described anti-creep plate, the other end is connected on described the first adapter plate, described first pilot bar one end is fixedly mounted on described anti-creep plate, and the other end passes described the first adapter plate and is slidably connected with described the first adapter plate;
The second energy-absorbing portion, comprise the second energy absorption device, the second pilot bar and the second adapter plate, described second energy absorption device one end is connected on described the first adapter plate, the other end is connected on described the second adapter plate, one end of described the second pilot bar is fixedly mounted on described the first adapter plate, and the other end passes described the second adapter plate and is slidably connected with described the second adapter plate.
Preferably, described the first energy absorption device and all tubular constructions for being surrounded by energy-absorbing material of described the second energy absorption device, described the first pilot bar and described the second pilot bar pass from the inner chamber of described the first energy absorption device and described the second energy absorption device respectively.
Preferably, between described the first adapter plate and described the second adapter plate, be also provided with the stay bearing plate for supporting described the second energy absorption device, described stay bearing plate is all parallel with described the first adapter plate and described the second adapter plate, its edge contacts cooperation with the inner chamber of described the second energy absorption device, is also provided with the through hole passing for described the second pilot bar on described stay bearing plate.
Preferably, described energy-absorbing material is honeycomb aluminum.
Preferably, described the first pilot bar is cylinder pilot bar, described the second pilot bar is spline pilot bar, the tubular that described spline pilot bar is hollow, described the first pilot bar coordinates with described the second pilot bar through after described the first adapter plate, is provided with the first spline housing coordinating with described the second pilot bar on described the second adapter plate.
Preferably, the side near described anti-creep plate on described the first adapter plate is provided with backstop, and the length of described backstop is not less than the length after described the first energy absorption device energy-absorbing; Between described the first adapter plate and described the second adapter plate, be also provided with the 3rd pilot bar, the position of the corresponding described backstop in described the 3rd pilot bar one end is fixedly mounted on the side of described the first adapter plate near described the second adapter plate, and the other end of described the 3rd pilot bar passes described the second adapter plate and is slidably connected with described the second adapter plate.
Preferably, described backstop is provided with 2, is distributed in symmetrically described the first energy absorption device both sides, and corresponding with it, described the 3rd pilot bar is also provided with 2.
Preferably, the top of described backstop is provided with auxiliary anti-creep plate.
Preferably, described the 3rd pilot bar is spline pilot bar, is provided with the second spline housing coordinating with described the 3rd pilot bar on described the second adapter plate.
A kind of guideway vehicle, comprises the energy absorption device that is arranged on vehicle front, and described energy absorption device is guideway vehicle front end energy absorption device as above.
Can find out from technique scheme, the guideway vehicle front end energy absorption device that the utility model provides, comprises anti-creep plate, the first energy-absorbing portion and the second energy-absorbing portion, wherein, is provided with the multiple anti-climbing tooth of horizontally set on anti-creep plate; The first energy-absorbing portion comprises the first energy absorption device, the first pilot bar and the first adapter plate, first energy absorption device one end is connected on anti-creep plate, the other end is connected on the first adapter plate, first pilot bar one end is fixedly mounted on anti-creep plate, and the other end passes the first adapter plate and is slidably connected with the first adapter plate; The second energy-absorbing portion comprises the second energy absorption device, the second pilot bar and the second adapter plate, second energy absorption device one end is connected on the first adapter plate, the other end is connected on the second adapter plate, one end of the second pilot bar is fixedly mounted on the first adapter plate, and the other end passes the second adapter plate and is slidably connected with the second adapter plate.
In the time bumping between two guideway vehicles, the anti-creep plate of two guideway vehicle front end energy absorption devices is intermeshing climbs folded, the serious consequence such as topple to prevent that vehicle from producing, anti-creep plate moves to the first adapter plate place direction along the first pilot bar, and conquassation the first energy absorption device absorbs the energy that collision produces; After the first energy absorption device is by complete conquassation, energy fails to have absorbed, the first adapter plate moves to the second adapter plate place direction along the second pilot bar, and conquassation the second energy absorption device continues energy-absorbing, the energy absorption device of this structure, front and back stages is separated energy-absorbing, with respect to prior art, endergonic process is more flexible, energy-absorbing distance, energy absorption is large, and is convenient to change.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The external structure schematic diagram of the guideway vehicle front end energy absorption device that Fig. 1 provides for the utility model embodiment;
The inner structure schematic diagram of the guideway vehicle front end energy absorption device that Fig. 2 provides for the utility model embodiment;
Structural representation after the first energy-absorbing portion energy-absorbing of the guideway vehicle front end energy absorption device that Fig. 3 provides for the utility model embodiment;
Structural representation after the second energy-absorbing portion energy-absorbing of the guideway vehicle front end energy absorption device that Fig. 4 provides for the utility model embodiment;
The front view of the guideway vehicle front end energy absorption device that Fig. 5 provides for the utility model embodiment;
The birds-eye view of the guideway vehicle front end energy absorption device that Fig. 6 provides for the utility model embodiment;
Fig. 7 is the A-A view of Fig. 6.
Detailed description of the invention
The utility model provides a kind of guideway vehicle front end energy absorption device and guideway vehicle, makes energy absorption device have larger energy absorption to reach, and when for guideway vehicle, can absorption as much as possible clash into the energy producing, protection car body and passenger's object.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the external structure schematic diagram of the guideway vehicle front end energy absorption device that Fig. 1 provides for the utility model embodiment; The inner structure schematic diagram of the guideway vehicle front end energy absorption device that Fig. 2 provides for the utility model embodiment.
A kind of guideway vehicle front end energy absorption device that the utility model provides, comprises anti-creep plate 1, the first energy-absorbing portion and the second energy-absorbing portion.
Wherein, on anti-creep plate 1, be provided with the multiple anti-climbing tooth of horizontally set, climb folded, the serious consequence such as topple for coordinating to prevent to produce after vehicle from bumping against with the anti-creeper of energy absorption device that is arranged on other vehicle fronts; The first energy-absorbing portion comprises the first energy absorption device 2, the first pilot bar 10 and the first adapter plate 5, first energy absorption device 2 one end are connected on anti-creep plate 1, the other end is connected on the first adapter plate 5, first pilot bar 10 one end are fixedly mounted on anti-creep plate 1, and the other end passes the first adapter plate 5 and is slidably connected with the first adapter plate 5; The second energy-absorbing portion comprises the second energy absorption device 6, the second pilot bar 9 and the second adapter plate 7, second energy absorption device 6 one end are connected on the first adapter plate 5, the other end is connected on the second adapter plate 7, one end of the second pilot bar 9 is fixedly mounted on the first adapter plate 5, and the other end passes the second adapter plate 7 and is slidably connected with the second adapter plate 7.
Compared with prior art, the guideway vehicle front end energy absorption device that the utility model provides, in the time bumping between two guideway vehicles, refer to Fig. 3 and Fig. 4, the structural representation after the first energy-absorbing portion energy-absorbing of the guideway vehicle front end energy absorption device that Fig. 3 provides for the utility model embodiment; Structural representation after the second energy-absorbing portion energy-absorbing of the guideway vehicle front end energy absorption device that Fig. 4 provides for the utility model embodiment, the anti-creep plate 1 of two guideway vehicle front end energy absorption devices is intermeshing climbs folded, the serious consequence such as topple to prevent that vehicle from producing, anti-creep plate 1 moves to the first adapter plate 5 place directions along the first pilot bar 10, and conquassation the first energy absorption device 2 absorbs the energy that collision produces; After the first energy absorption device 2 is by complete conquassation, energy fails to have absorbed, the first adapter plate 5 moves to the second adapter plate 7 place directions along the second pilot bar 9, conquassation the second energy absorption device 6 continues energy-absorbing, the energy absorption device of this structure, and front and back stages is separated energy-absorbing, endergonic process is more flexible, energy-absorbing distance, energy absorption is large, and is convenient to change.
The first energy absorption device 2 and the second energy absorption device 6 can adopt various structures, in the utility model embodiment, the first energy absorption device 2 and all tubular constructions for being surrounded by energy-absorbing material of the second energy absorption device 6, the first pilot bar 10 and the second pilot bar 9 pass from the inner chamber of the first energy absorption device 2 and the second energy absorption device 6 respectively.Energy-absorbing material can adopt honeycomb aluminum or other buffering deformable materials, in the utility model embodiment, preferentially adopts honeycomb aluminum to make the first energy absorption device 2 and the second energy absorption device 6.
In order to extend the energy-absorbing distance of energy absorption device, increase energy absorption, what generally the second energy absorption device 6 will be arranged is longer, will cause like this second energy absorption device 6 to be easily out of shape, affect energy-absorbing effect, therefore, in the utility model embodiment, between the first adapter plate 5 and the second adapter plate 7, be also provided with the stay bearing plate 11 for supporting the second energy absorption device 6, stay bearing plate 11 is all parallel with the first adapter plate 5 and the second adapter plate 7, its edge contacts cooperation with the inner chamber of the second energy absorption device 6, is also provided with the through hole passing for the second pilot bar 9 on stay bearing plate 11.By stay bearing plate 11, the second energy absorption device 6 is supported, what can make that the second energy absorption device 6 extends is longer, has longer energy-absorbing distance.
In actual use, guide frame can be reliable and stable guiding anti-creep plate 1 and the first adapter plate 5 move, energy-absorbing effect to energy absorption device has significant impact, therefore, in the utility model embodiment, the first pilot bar 10 is cylinder pilot bar, the second pilot bar 9 is spline pilot bar, spline pilot bar is the tubular of hollow, after the first pilot bar 10 passes the first adapter plate 5, coordinate with the second pilot bar 9, on the second adapter plate 7, be provided with the first spline housing 12 coordinating with the second pilot bar 9.Can find out from said structure, because the length of the first energy-absorbing portion is shorter, use cylinder pilot bar just can meet operating needs as the first pilot bar 10, and the second energy-absorbing minister degree is longer, for the purpose of safe, adopt the good spline pilot bar of guidance quality as the second pilot bar 9, and the second pilot bar 9 is made to the tubular of hollow, make it to coordinate with the second pilot bar 9, form slidably and connect, simplified the structure of guideway vehicle front end energy absorption device.
Because the sectional area of the second energy absorption device 6 is larger, easily cause the first adapter plate 5 in the time moving to the second adapter plate 7 place directions, the motion conditions of both sides is asynchronous, affect energy-absorbing effect, therefore, in the utility model embodiment, refer to Fig. 5-Fig. 7, the front view of the guideway vehicle front end energy absorption device that Fig. 5 provides for the utility model embodiment; The birds-eye view of the guideway vehicle front end energy absorption device that Fig. 6 provides for the utility model embodiment; Fig. 7 is the A-A view of Fig. 6, and the side near anti-creep plate 1 on the first adapter plate 5 is provided with backstop 4, and the length of backstop 4 is not less than the length after the first energy absorption device 2 energy-absorbings; Between the first adapter plate 5 and the second adapter plate 7, be also provided with the 3rd pilot bar 8, the position of the 3rd corresponding backstop 4 in pilot bar 8 one end is fixedly mounted on the side of the first adapter plate 5 near the second adapter plate 7, and the other end of the 3rd pilot bar 8 passes the second adapter plate 7 and is slidably connected with the second adapter plate 7.After the first energy absorption device 2 energy-absorbings complete, because the length of backstop 4 is not less than the length after the first energy absorption device 2 energy-absorbings, anti-creep plate 1 is in the same plane with backstop 4 tops, increase energy-absorbing contact surface, for the better energy-absorbing of the second energy absorption device 6 that cross section is larger is laid the groundwork, further, backstop 4 is provided with 2, be distributed in symmetrically the first energy absorption device 2 both sides, corresponding with it, the 3rd pilot bar 8 is also provided with 2, like this, because the first energy absorption device 2 both sides are provided with identical backstop 4, and be provided with the 3rd pilot bar 8 at two backstop 4 rears, the both sides that can ensure the first adapter plate 5 synchronously retreat, ensure energy-absorbing effect.
Further, the 3rd pilot bar 8 is spline pilot bar, is provided with the second spline housing 13 coordinating with the 3rd pilot bar 8 on the second adapter plate 7.
In the time of collision happens, once producing, vehicle climbs folded, the serious consequence such as topple, can produce great threat to passenger's safety, in order further to avoid the generation of this serious consequence, in the utility model embodiment, the top of backstop 4 is provided with auxiliary anti-creep plate 3, and auxiliary anti-creep plate 3 cooperatively interacts with the anti-creep plate 1 that is positioned at first energy absorption device 2 one end, time can produce larger active flank in collision, reduce and climb possibility folded, that the phenomenon such as topple occurs.
The utility model also provides a kind of guideway vehicle, comprises the energy absorption device that is arranged on vehicle front, and described energy absorption device is guideway vehicle front end energy absorption device as above.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a guideway vehicle front end energy absorption device, is characterized in that, comprising:
Anti-creep plate (1), is provided with the multiple anti-climbing tooth of horizontally set on it;
The first energy-absorbing portion, comprise the first energy absorption device (2), the first pilot bar (10) and the first adapter plate (5), described the first energy absorption device (2) one end is connected on described anti-creep plate (1), the other end is connected on described the first adapter plate (5), it is upper that described the first pilot bar (10) one end is fixedly mounted on described anti-creep plate (1), and the other end passes described the first adapter plate (5) and is slidably connected with described the first adapter plate (5);
The second energy-absorbing portion, comprise the second energy absorption device (6), the second pilot bar (9) and the second adapter plate (7), described the second energy absorption device (6) one end is connected on described the first adapter plate (5), the other end is connected on described the second adapter plate (7), it is upper that one end of described the second pilot bar (9) is fixedly mounted on described the first adapter plate (5), and the other end passes described the second adapter plate (7) and is slidably connected with described the second adapter plate (7).
2. guideway vehicle front end energy absorption device according to claim 1, it is characterized in that, described the first energy absorption device (2) and all tubular constructions for being surrounded by energy-absorbing material of described the second energy absorption device (6), described the first pilot bar (10) and described the second pilot bar (9) pass from the inner chamber of described the first energy absorption device (2) and described the second energy absorption device (6) respectively.
3. guideway vehicle front end energy absorption device according to claim 2, it is characterized in that, between described the first adapter plate (5) and described the second adapter plate (7), be also provided with the stay bearing plate (11) for supporting described the second energy absorption device (6), described stay bearing plate (11) is all parallel with described the first adapter plate (5) and described the second adapter plate (7), its edge contacts cooperation with the inner chamber of described the second energy absorption device (6), is also provided with the through hole passing for described the second pilot bar (9) on described stay bearing plate (11).
4. guideway vehicle front end energy absorption device according to claim 2, is characterized in that, described energy-absorbing material is honeycomb aluminum.
5. guideway vehicle front end energy absorption device according to claim 1, it is characterized in that, described the first pilot bar (10) is cylinder pilot bar, described the second pilot bar (9) is spline pilot bar, the tubular that described spline pilot bar is hollow, described the first pilot bar (10) coordinates with described the second pilot bar (9) through after described the first adapter plate (5), is provided with the first spline housing (12) coordinating with described the second pilot bar (9) on described the second adapter plate (7).
6. guideway vehicle front end energy absorption device according to claim 1, it is characterized in that, the upper side near described anti-creep plate (1) of described the first adapter plate (5) is provided with backstop (4), and the length of described backstop (4) is not less than the length after described the first energy absorption device (2) energy-absorbing; Between described the first adapter plate (5) and described the second adapter plate (7), be also provided with the 3rd pilot bar (8), the position of the described corresponding described backstop in the 3rd pilot bar (8) one end (4) is fixedly mounted on the side of described the first adapter plate (5) near described the second adapter plate (7), and the other end of described the 3rd pilot bar (8) passes described the second adapter plate (7) and is slidably connected with described the second adapter plate (7).
7. guideway vehicle front end energy absorption device according to claim 6, it is characterized in that, described backstop (4) is provided with 2, is distributed in symmetrically described the first energy absorption device (2) both sides, corresponding with it, described the 3rd pilot bar (8) is also provided with 2.
8. guideway vehicle front end energy absorption device according to claim 6, is characterized in that, the top of described backstop (4) is provided with auxiliary anti-creep plate (3).
9. guideway vehicle front end energy absorption device according to claim 6, it is characterized in that, described the 3rd pilot bar (8) is spline pilot bar, is provided with the second spline housing (13) coordinating with described the 3rd pilot bar (8) on described the second adapter plate (7).
10. a guideway vehicle, comprises the energy absorption device that is arranged on vehicle front, it is characterized in that, described energy absorption device is the guideway vehicle front end energy absorption device as described in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798144.7U CN203766809U (en) | 2013-12-05 | 2013-12-05 | Energy absorption device at front end of railway vehicle and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798144.7U CN203766809U (en) | 2013-12-05 | 2013-12-05 | Energy absorption device at front end of railway vehicle and railway vehicle |
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| Publication Number | Publication Date |
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| CN203766809U true CN203766809U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320798144.7U Withdrawn - After Issue CN203766809U (en) | 2013-12-05 | 2013-12-05 | Energy absorption device at front end of railway vehicle and railway vehicle |
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| CN (1) | CN203766809U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691572A (en) * | 2013-12-05 | 2015-06-10 | 南车青岛四方机车车辆股份有限公司 | Energy absorbing device at front end of rail vehicle, and rail vehicle |
| CN106218660A (en) * | 2016-08-25 | 2016-12-14 | 中车南京浦镇车辆有限公司 | A kind of front end buffer unit for tramcar |
| CN106672011A (en) * | 2016-12-29 | 2017-05-17 | 中车唐山机车车辆有限公司 | Railway passenger car body |
| CN111114578A (en) * | 2018-11-01 | 2020-05-08 | 中车唐山机车车辆有限公司 | Collision energy absorption device and rail train |
| CN112550342A (en) * | 2020-12-24 | 2021-03-26 | 西南交通大学 | Energy-absorbing device is presented to induced pressure of rail vehicle |
-
2013
- 2013-12-05 CN CN201320798144.7U patent/CN203766809U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104691572A (en) * | 2013-12-05 | 2015-06-10 | 南车青岛四方机车车辆股份有限公司 | Energy absorbing device at front end of rail vehicle, and rail vehicle |
| CN104691572B (en) * | 2013-12-05 | 2017-05-03 | 中车青岛四方机车车辆股份有限公司 | Energy absorbing device at front end of rail vehicle, and rail vehicle |
| CN106218660A (en) * | 2016-08-25 | 2016-12-14 | 中车南京浦镇车辆有限公司 | A kind of front end buffer unit for tramcar |
| CN106672011A (en) * | 2016-12-29 | 2017-05-17 | 中车唐山机车车辆有限公司 | Railway passenger car body |
| CN111114578A (en) * | 2018-11-01 | 2020-05-08 | 中车唐山机车车辆有限公司 | Collision energy absorption device and rail train |
| CN112550342A (en) * | 2020-12-24 | 2021-03-26 | 西南交通大学 | Energy-absorbing device is presented to induced pressure of rail vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20170503 |
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| AV01 | Patent right actively abandoned |