CN103963789A - Water injection hole assembly and train with same - Google Patents
Water injection hole assembly and train with same Download PDFInfo
- Publication number
- CN103963789A CN103963789A CN201410215244.1A CN201410215244A CN103963789A CN 103963789 A CN103963789 A CN 103963789A CN 201410215244 A CN201410215244 A CN 201410215244A CN 103963789 A CN103963789 A CN 103963789A
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- Prior art keywords
- water injection
- injection pipe
- cover plate
- train
- rotating shaft
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Abstract
The invention provides a water injection hole assembly and a train with the same. The water injection hole assembly of the train comprises a water injection hole and a water injection head, wherein the water injection hole comprises a fixed support, a water injection pipe, a cover plate and a rotating shaft, an edge turning structure is arranged on the edge of the cover plate, two back-to-back sunken structures are formed on the peripheral face of the end part of the rotating shaft, a mounting support is arranged on the fixed support and is positioned on one side of the water injection pipe, an axle hole is formed in the mounting support, the rotating shaft is inserted in the axle hole, two back-to-back arc-shaped plates are fixedly arranged on the side wall of the water injection pipe and are arranged in an inclined and crossed manner; the water injection head comprises a water injection plug and a chuck, a mounting hole is formed in the chuck, the water injection plug is inserted in the mounting hole in a sealing manner, two back-to-back claws are further arranged on the edge of the inner surface of the chuck, and a sealing rubber gasket is further arranged on the inner surface of the chuck. The water injection hole assembly of the train is convenient for workers to operate, the reliability of the water injection hole assembly of the train is improved, and water injection is facilitated.
Description
Technical field
The present invention relates to rail car, relate in particular to a kind of train filling pipe end assembly and train.
Background technology
At present, train is the vehicle conventional in people's daily life, water tank on train, is conventionally equipped with, water tank can provide essential domestic water for train crews and passenger, corresponding, is also provided with filling pipe end on train, after train enters the station, by filling pipe end, to water filling in water tank, and in train driving process, filling pipe end need to carry out shutoff.Filling pipe end in prior art on train adopts the blanking cover of revolving blanking cover or buckle-type to carry out shutoff filling pipe end conventionally.And in actual mechanical process, staff need to rotate blanking cover or press buckle and realize switch blanking cover, whole operating process is loaded down with trivial details, simultaneously, in the injecting process, also easily occur that water filling robs the phenomenon of leaking between filling pipe end, cause the lower and inconvenient water filling of filling pipe end reliability of the prior art.
Summary of the invention
Technical matters to be solved by this invention is: a kind of train filling pipe end assembly and train are provided, the filling pipe end that solves train in prior art is inconvenient to the defect using and reliability is lower, realization facilitates the automobile-used filling pipe end assembly of staff's action column, improves the reliability of train filling pipe end assembly and conveniently carries out water filling.
Technical scheme provided by the invention is that a kind of train filling pipe end assembly, comprises filling pipe end and water filling head, described filling pipe end comprises fixed support, water injection pipe, cover plate and rotating shaft, described water injection pipe is fixed on described fixed support, the edge of described cover plate has turnup structure, described rotating shaft is fixed on described cover plate and is extended to the outside of described turnup structure, on the outer peripheral face of described roller end, be formed with two sunk structures that arrange dorsad, on described fixed support, be provided with mounting bracket, described mounting bracket is positioned at a side of described water injection pipe, on described mounting bracket, offer axis hole, the hole wall of described axis hole also offers slot, described slot is near described water injection pipe, described rotating shaft is inserted in described axis hole, the water inlet of described water injection pipe is horn-like structure, the sidewall of described water injection pipe is fixedly installed two arcs that arrange dorsad, two described arcs are obliquely installed mutual arranged crosswise, described water filling head comprises water filling plug and chuck, described chuck offers mounting hole, and described water filling plug sealing is inserted in described mounting hole, and the edge of described chuck inside face is also provided with two claws that arrange dorsad, and the inside face of described chuck is also provided with seal gasket, in the time that described cover plate hides the water inlet at described water injection pipe, the end of described rotating shaft is arranged in described slot, and the sidewall of described sunk structure and described slot is oppositely arranged, when described cover plate is in the time that open mode and described water filling plug are inserted into described water injection pipe, described claw is stuck on corresponding described arc, and the water inlet of described water injection pipe is resisted against on described seal gasket.
Further, the width of described slot is less than the diameter of described axis hole, and the width of described sunk structure is less than the diameter of described rotating shaft.
Further, the hole that described axis hole and described slot form is symmetrical structure.
Further, described slot tilts towards the water inlet of described water injection pipe; Described cover plate comprises the first plate body and the second plate body, between described the first plate body and described the second plate body, forms obtuse angle, and described rotating shaft is fixed on described the first plate body; In the time that described cover plate hides the water inlet at described water injection pipe, described the second plate body is resisted against on the water inlet of described water injection pipe.
Further, wherein on the described turnup structure of pair of opposing, offer the first through hole, the end correspondence of described rotating shaft is inserted in described the first through hole, the middle part of described rotating shaft offers tapped bore, the surface of described cover plate offers the second through hole, and screw is connected in described tapped bore through described the second through hole whorl.
Further, the inside face of described cover plate is also provided with packing seal; In the time that described cover plate hides the water inlet at described water injection pipe, described packing seal is resisted against on the water inlet of described water injection pipe.
Further, described chuck is also fixedly installed two handles that arrange dorsad, and the end that described water filling plug is positioned at described chuck outside face one side is pagoda joint.
The present invention also provides a kind of train, comprises water tank, also comprises above-mentioned train filling pipe end assembly, and described train is communicated with described water tank with the water injection pipe of filling pipe end assembly.
Filling pipe end assembly and train for train provided by the invention, by slot is set on axis hole, and the end of rotating shaft is set to non-circular structure, in the time that the end of rotating shaft is arranged in axis hole, rotating shaft can freely be rotated in axis hole, cover plate is opened and opened water injection pipe, and after rotating shaft is inserted in slot by sunk structure, cover plate can not rotate and cover in water injection pipe, in operating process, staff only needs rotating plate that rotating shaft is stuck in can to complete cover plate in slot to cover water injection pipe, whole operating process is simple, and, as long as rotating shaft is stuck in slot, just can guarantee that cover plate failure-free blocks water injection pipe, realization facilitates the automobile-used filling pipe end assembly of staff's action column, and improve the reliability of train filling pipe end assembly, simultaneously, in the time that needs carry out water filling, cover plate is opened, water filling plug is inserted in water injection pipe, coordinate with arc water filling head is locked on filling pipe end by claw, and seal gasket will seal up the water inlet of water injection pipe, thereby actv. avoids the phenomenon of leaking in the injecting process to occur, and conveniently carries out water filling.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention 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 some embodiments of the present invention, 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.
Fig. 1 is the assembly drawing of filling pipe end and water filling head in train of the present invention filling pipe end assembly embodiment;
Fig. 2 is the structural representation of filling pipe end in train of the present invention filling pipe end assembly embodiment;
Fig. 3 is support bracket fastened structural representation in train of the present invention filling pipe end assembly embodiment;
Fig. 4 is the front view of water injection pipe in train of the present invention filling pipe end assembly embodiment;
Fig. 5 is the birds-eye view of water injection pipe in train of the present invention filling pipe end assembly embodiment;
Fig. 6 is the front view of train of the present invention filling pipe end assembly embodiment cover plate;
Fig. 7 is the upward view of train of the present invention filling pipe end assembly embodiment cover plate;
Fig. 8 is the structural representation of water filling head in train of the present invention filling pipe end assembly embodiment;
Fig. 9 be in Fig. 8 A-A to cutaway view.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1-Fig. 9, the present embodiment train filling pipe end assembly, comprises filling pipe end 1 and water filling 2, filling pipe end 1 comprises fixed support 11, water injection pipe 12, cover plate 13 and rotating shaft 14, water injection pipe 12 is fixed on fixed support 11, the edge of cover plate 13 has turnup structure 131, rotating shaft 14 is fixed on cover plate 13 and is extended to the outside of turnup structure 131, on the outer peripheral face of rotating shaft 14 ends, be formed with two axis hole 112 sunk structures 141 that arrange dorsad, on fixed support 11, be provided with mounting bracket 11, mounting bracket 11 is positioned at a side of water injection pipe 12, on mounting bracket 11, offer axis hole 112, the hole wall of axis hole 112 also offers slot 113, slot 113 is near water injection pipe 12, rotating shaft 14 is inserted in axis hole 112, and the water inlet of water injection pipe 12 is horn-like structure, the sidewall of water injection pipe 12 is fixedly installed two arcs 121 that arrange dorsad, two arcs 121 are obliquely installed mutual arranged crosswise, water filling 2 comprises water filling plug 21 and chuck 22, chuck 22 offers mounting hole (not shown), and 21 sealings of water filling plug are inserted in mounting hole, and the edge of chuck 22 inside faces is also provided with two claws 221 that arrange dorsad, and the inside face of chuck 22 is also provided with seal gasket 23, in the time that cover plate 13 hides the water inlet at water injection pipe 12, the end of rotating shaft 14 is arranged in slot 113, and axis hole 112 sunk structures 141 are oppositely arranged with the sidewall of slot 113, when cover plate 13 is in the time that open mode and water filling plug 21 are inserted into water injection pipe 12, claw 221 is stuck on corresponding arc 121, and the water inlet of water injection pipe 12 is resisted against on seal gasket 23.
Particularly, the present embodiment train is provided with axis hole 112 sunk structures 141 in the end of rotating shaft 14 with filling pipe end assembly, make the cross-sectional plane of the end of rotating shaft 14 become non-circular structure, corresponding, on the mounting bracket 11 of fixed support 11, be provided with axis hole 112, and the hole wall of this axis hole 112 offers slot 113, rotating shaft 14 is inserted in axis hole 112.At cover plate 13, during in closed condition, cover plate 13 hides on the water inlet of water injection pipe 12, and now, rotating shaft 14 is inserted in slot 113 by axis hole 112 sunk structures 141, and cover plate 13 cannot be rotated; And at cover plate 13 during in open mode, rotating shaft 14 can freely be rotated in axis hole 112.Specific operation process is as follows, and staff's rotating plate 13 covers in the water inlet of water injection pipe 12 cover plate 13, then pulls cover plate 13, and rotating shaft 14 is stuck in slot 113 by axis hole 112 sunk structures 141, just can realize easily and close cover plate 13; And in the time opening cover plate 13, staff only needs to promote cover plate 13, rotating shaft 14 is detached from slot 113, just can rotating opening cover plate 13.Than the mode of available technology adopting screw thread or buckle connection, from integral structure, the present embodiment train is simpler by the structure of filling pipe end assembly, be easy to processing and produce, and filling pipe end of the prior art needs machining screw or configuration buckle; From ease of use, operating personal only needs the switch water injection pipe 12 that push-and-pull cover plate 13 just can be convenient and reliable, and filling pipe end of the prior art need to adopt the mode of rotation or pressing just can complete and easily occur the phenomenon generation that staff does not fasten, the present embodiment train filling pipe end assembly, as long as staff pulls cover plate 13 that rotating shaft 14 is stuck in slot 113, just can limit cover plate 13 by failure-free, effectively raise reliability.In addition, the turnup structure 131 of cover plate 13 can also play the effect of dustproof sand control, guarantees that train does not have sand and dust and enters into water injection pipe 12 in operational process.Enter the station and carry out in the injecting process at train, the water filling plug 21 of water filling 2 is inserted in water injection pipe 12, arc 121 on water injection pipe 12 coordinates with claw 221, can position water filling 2 fasteningly, concrete, rotate after water filling 2, claw 221 is clamped on arc 121 closely, so that water filling 2 be fastened on water injection pipe 12, thereby without workman personnel always hand-held water filling head add water, effectively reduce workman's labour intensity; Meanwhile, the sealed rubber cushion 23 of the water inlet of water injection pipe 12 seals up, and avoids occurring that the phenomenon of leaking occurs.
Wherein, axis hole 112 sunk structures 141 can adopt the settlement platform form that machines away part material at the two ends of rotating shaft 14 and form, or, adopt the end of countershaft 14 to push the planar structure forming, or the cross-sectional plane of the end of rotating shaft 14 is ellipticity.In addition, the width of slot 113 is less than the diameter of axis hole 112, and the width of axis hole 112 sunk structures 141 is less than the diameter of rotating shaft 14.Preferably, axis hole 112 is symmetrical structure with the hole that slot 113 forms, and in the time that staff pulls cover plate 13, rotating shaft 14 can enter into slot 113 along the arcwall face guiding of axis hole 112, to guarantee that rotating shaft 14 is stuck in slot 113 accurately.And for water injection pipe 12 is sealed, the inside face of cover plate 13 is also provided with packing seal 130, packing seal 130 is resisted against on the water inlet of water injection pipe 12.
Further, slot 113 tilts towards the water inlet of water injection pipe 12; Cover plate 13 comprises between the first plate body 1301 and the second plate body 1302, the first plate bodys 1301 and the second plate body 1302 and forms obtuse angle, and rotating shaft 14 is fixed on the first plate body 1301; In the time that cover plate 13 hides the water inlet at water injection pipe 12, the second plate body 1302 is resisted against on the water inlet of water injection pipe 12.Concrete, cover plate 13 entirety in the present embodiment are bending, are made up of the first plate body 1301 and the second plate body 1302, and wherein, the first plate body 1301 and the second plate body 1302 can be integral structure.Tilt towards water injection pipe 12 by the hole that axis hole 112 and slot 113 are formed, and coordinate the cover plate 13 of bending, can realize the more firm cover plate 13 that passes through and shelter from water injection pipe 12, be specially: pull cover plate 13 to cover in the process of water injection pipe 12 workman personnel, the slot along being obliquely installed 113 is moved in rotating shaft 14, meanwhile, because cover plate 13 is bending, be inserted in the process of slot 113 in rotating shaft 14, the second plate body 1302 will also finally be resisted against on water injection pipe 12 near water injection pipe 12 gradually, and staff more pulls cover plate 13, squeese pressure between cover plate 13 and water injection pipe 12 is larger.After cover plate 13 is moved and puts in place, the second plate body 1302 is pressed on water injection pipe 12 closely, water injection pipe 12 applies certain thrust to the second plate body 1302, meanwhile, rotating shaft 14 is stuck in again in slot 113, and rotating shaft 14 has applied certain pulling force to the first plate body 1301, thereby make all stressed constraints of both ends of cover plate 13, make being limited in slot 113 by firm failure-free of cover plate 13, avoid train in operational process, cover plate 13 is opened because of vibrations.
Further, wherein on the turnup structure 131 of pair of opposing, offer the first through hole 132, the end correspondence of rotating shaft 14 is inserted in the first through hole 132, the middle part of rotating shaft 14 offers tapped bore 142, the surface of cover plate 13 offers the second through hole (not shown), and screw 143 is connected in tapped bore 142 through the second through hole whorl.Concrete, rotating shaft 14 is coordinated and is firmly fixedly connected on cover plate 13 by screw 143 and the first through hole 132.
Further again, chuck 22 is also fixedly installed two handles 24 that arrange dorsad, and the end that water filling plug 21 is positioned at chuck 22 outside face one sides is pagoda joint 211.Concrete, in operating process, operating personal can rotate water filling 2 by handle 24, and pagoda joint 211 can be connected with the water pipe on station by more quick failure-free.
The present invention also provides a kind of train, comprises water tank, also comprises above-mentioned train filling pipe end assembly, and train is communicated with water tank with the water injection pipe of filling pipe end assembly.
Filling pipe end assembly and train for train provided by the invention, by slot is set on axis hole, and the end of rotating shaft is set to non-circular structure, in the time that the end of rotating shaft is arranged in axis hole, rotating shaft can freely be rotated in axis hole, cover plate is opened and opened water injection pipe, and after rotating shaft is inserted in slot by sunk structure, cover plate can not rotate and cover in water injection pipe, in operating process, staff only needs rotating plate that rotating shaft is stuck in can to complete cover plate in slot to cover water injection pipe, whole operating process is simple, and, as long as rotating shaft is stuck in slot, just can guarantee that cover plate failure-free blocks water injection pipe, realization facilitates the automobile-used filling pipe end assembly of staff's action column, and improve the reliability of train filling pipe end assembly, simultaneously, in the time that needs carry out water filling, cover plate is opened, water filling plug is inserted in water injection pipe, coordinate with arc water filling head is locked on filling pipe end by claw, and seal gasket will seal up the water inlet of water injection pipe, thereby actv. avoids the phenomenon of leaking in the injecting process to occur, and conveniently carries out water filling.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a train filling pipe end assembly, is characterized in that, comprises filling pipe end and water filling head, described filling pipe end comprises fixed support, water injection pipe, cover plate and rotating shaft, described water injection pipe is fixed on described fixed support, the edge of described cover plate has turnup structure, described rotating shaft is fixed on described cover plate and is extended to the outside of described turnup structure, on the outer peripheral face of described roller end, be formed with two sunk structures that arrange dorsad, on described fixed support, be provided with mounting bracket, described mounting bracket is positioned at a side of described water injection pipe, on described mounting bracket, offer axis hole, the hole wall of described axis hole also offers slot, described slot is near described water injection pipe, described rotating shaft is inserted in described axis hole, the water inlet of described water injection pipe is horn-like structure, the sidewall of described water injection pipe is fixedly installed two arcs that arrange dorsad, two described arcs are obliquely installed mutual arranged crosswise, described water filling head comprises water filling plug and chuck, described chuck offers mounting hole, and described water filling plug sealing is inserted in described mounting hole, and the edge of described chuck inside face is also provided with two claws that arrange dorsad, and the inside face of described chuck is also provided with seal gasket, in the time that described cover plate hides the water inlet at described water injection pipe, the end of described rotating shaft is arranged in described slot, and the sidewall of described sunk structure and described slot is oppositely arranged, when described cover plate is in the time that open mode and described water filling plug are inserted into described water injection pipe, described claw is stuck on corresponding described arc, and the water inlet of described water injection pipe is resisted against on described seal gasket.
2. train according to claim 1 filling pipe end assembly, is characterized in that, the width of described slot is less than the diameter of described axis hole, and the width of described sunk structure is less than the diameter of described rotating shaft.
3. train according to claim 1 filling pipe end assembly, is characterized in that, the hole that described axis hole and described slot form is symmetrical structure.
4. train according to claim 1 filling pipe end assembly, is characterized in that, described slot tilts towards the water inlet of described water injection pipe; Described cover plate comprises the first plate body and the second plate body, between described the first plate body and described the second plate body, forms obtuse angle, and described rotating shaft is fixed on described the first plate body; In the time that described cover plate hides the water inlet at described water injection pipe, described the second plate body is resisted against on the water inlet of described water injection pipe.
5. train according to claim 1 filling pipe end assembly, it is characterized in that, wherein on the described turnup structure of pair of opposing, offer the first through hole, the end correspondence of described rotating shaft is inserted in described the first through hole, the middle part of described rotating shaft offers tapped bore, the surface of described cover plate offers the second through hole, and screw is connected in described tapped bore through described the second through hole whorl.
6. train according to claim 1 filling pipe end assembly, is characterized in that, the inside face of described cover plate is also provided with packing seal; In the time that described cover plate hides the water inlet at described water injection pipe, described packing seal is resisted against on the water inlet of described water injection pipe.
7. train according to claim 1 filling pipe end assembly, is characterized in that, described chuck is also fixedly installed two handles that arrange dorsad, and the end that described water filling plug is positioned at described chuck outside face one side is pagoda joint.
8. a train, comprises water tank, it is characterized in that, also comprises the train filling pipe end assembly as described in as arbitrary in claim 1-7, and described train is communicated with described water tank with the water injection pipe of filling pipe end assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215244.1A CN103963789B (en) | 2014-05-21 | 2014-05-21 | Train water filling port assembly and train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215244.1A CN103963789B (en) | 2014-05-21 | 2014-05-21 | Train water filling port assembly and train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103963789A true CN103963789A (en) | 2014-08-06 |
| CN103963789B CN103963789B (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410215244.1A Active CN103963789B (en) | 2014-05-21 | 2014-05-21 | Train water filling port assembly and train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103963789B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588676A (en) * | 2019-08-20 | 2019-12-20 | 中车四方车辆有限公司 | Dustproof water injection nozzle and using method thereof |
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| CN201220673Y (en) * | 2008-05-07 | 2009-04-15 | 长春轨道客车股份有限公司 | Constitution of water filling hole on vehicle |
| CN102923136A (en) * | 2012-11-08 | 2013-02-13 | 唐山轨道客车有限责任公司 | Water filling nozzle protection device of motor train unit and motor train unit train body |
| KR20130044942A (en) * | 2011-10-25 | 2013-05-03 | 한국철도공사 | Sprinkler for rail of railway |
| CN203268037U (en) * | 2013-05-10 | 2013-11-06 | 长春轨道客车股份有限公司 | Inspection door for water filling nozzle of railway vehicle |
| CN203296614U (en) * | 2013-06-09 | 2013-11-20 | 青岛威奥轨道装饰材料制造有限公司 | Water filling nozzle door cover plate and train |
-
2014
- 2014-05-21 CN CN201410215244.1A patent/CN103963789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201220673Y (en) * | 2008-05-07 | 2009-04-15 | 长春轨道客车股份有限公司 | Constitution of water filling hole on vehicle |
| KR20130044942A (en) * | 2011-10-25 | 2013-05-03 | 한국철도공사 | Sprinkler for rail of railway |
| CN102923136A (en) * | 2012-11-08 | 2013-02-13 | 唐山轨道客车有限责任公司 | Water filling nozzle protection device of motor train unit and motor train unit train body |
| CN203268037U (en) * | 2013-05-10 | 2013-11-06 | 长春轨道客车股份有限公司 | Inspection door for water filling nozzle of railway vehicle |
| CN203296614U (en) * | 2013-06-09 | 2013-11-20 | 青岛威奥轨道装饰材料制造有限公司 | Water filling nozzle door cover plate and train |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588676A (en) * | 2019-08-20 | 2019-12-20 | 中车四方车辆有限公司 | Dustproof water injection nozzle and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103963789B (en) | 2016-06-29 |
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| CB02 | Change of applicant information |
Address after: 266111 Chengyang City, Shandong Province District, Ping Road, No. 9, No. Applicant after: CRRC SIFANG CO., LTD. Address before: 266111 Chengyang City, Shandong Province District, Ping Road, No. 9, No. Applicant before: CSR Sifang Locomotive and Rolling Stock Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210720 Address after: 266111 Hongping Road, Chengyang District, Qingdao, Shandong Province, No. 9 Patentee after: Qingdao CRRC Sifang Rail Vehicle Co.,Ltd. Address before: 266111 Hongping Road, Chengyang District, Qingdao, Shandong Province, No. 9 Patentee before: CRRC SIFANG Co.,Ltd. |