CN110466550B - Rail vehicle side wall structure and rail vehicle - Google Patents
Rail vehicle side wall structure and rail vehicle Download PDFInfo
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- CN110466550B CN110466550B CN201910794412.XA CN201910794412A CN110466550B CN 110466550 B CN110466550 B CN 110466550B CN 201910794412 A CN201910794412 A CN 201910794412A CN 110466550 B CN110466550 B CN 110466550B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/08—Sides
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Abstract
The invention relates to the technical field of rail vehicles, and discloses a rail vehicle side wall structure and a rail vehicle, wherein the rail vehicle side wall structure comprises a side wall body, a hollow area is constructed on the side wall body, and the rail vehicle side wall structure further comprises: the window frame structure, the window frame structure includes window frame entablature, window frame bottom end rail, first individual layer window stand and the stand of second individual layer window, window frame entablature, window frame bottom end rail, the stand of first individual layer window and the stand of second individual layer window formula shaping as an organic whole and construct integral individual layer structure, the window frame structure inlays to be established in the cavity area and with the side wall body welding is as an organic whole. The rail vehicle side wall structure has the advantages that the structure can be simultaneously suitable for laser welding and spot welding, the universality of a die and a positioning tool is improved, raw materials are saved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of rail vehicles, in particular to a rail vehicle side wall structure and a rail vehicle.
Background
At present, rail transit has become the most dominant vehicle in urban traffic. Based on the requirements of safety, economy and appearance quality of rail vehicles, rail vehicles such as subways, urban rails and high-speed rails and the like usually adopt stainless steel as a main material of a vehicle body, and the most common welding mode is spot welding or laser welding.
Spot welding and laser welding are two kinds of different welding techniques, because the window frame structure among the current side wall structure is mostly split type, need weld every single in the window frame structure respectively, lead to the welding process complicated, the welding position frock increases, wherein, the window frame stand among the window frame structure is mostly bilayer structure, after accomplishing the laser welding of window frame stand bilayer structure and window frame stand and side wall, it is just more difficult if want to carry out spot welding again, and the spot welding side wall structure and the laser welding side wall structure that are applicable to these two kinds of welding forms are different, respectively have characteristics, therefore, also caused the spare part of these two kinds of side walls and with make relevant frock mould also inequality, can have the unable general condition even.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a side wall structure of a rail vehicle and the rail vehicle, which aim to solve the problem that a tool and a die cannot be commonly used due to different structures of the traditional laser welding and spot welding side wall structure in the prior art; the window frame structure in the side wall structure is mostly split type, needs to weld one by one to the window frame stand is mostly bilayer structure, accomplishes the laser welding back, and difficult spot welding that realizes again causes current side wall structure can't be suitable for the technical problem of laser welding and spot welding simultaneously from this.
(II) technical scheme
In order to solve the technical problem, according to a first aspect of the present invention, there is provided a side wall structure for a rail vehicle, including a side wall body, on which a hollow region is configured, and further including: the window frame structure, the window frame structure includes window frame entablature, window frame bottom end rail, first individual layer window stand and the stand of second individual layer window, window frame entablature, window frame bottom end rail, the stand of first individual layer window and the stand of second individual layer window formula shaping as an organic whole and construct integral individual layer structure, the window frame structure inlays to be established in the cavity area and with the side wall body welding is as an organic whole.
The window frame upper beam and the window frame lower beam are arranged along the longitudinal direction of the side wall body, the first single-layer window stand column and the second single-layer window stand column are arranged between the window frame upper beam and the window frame lower beam respectively, and the first single-layer window stand column, the window frame upper beam, the second single-layer window stand column and the window frame lower beam are arranged to jointly enclose a window area.
And first window corner connecting plates are respectively constructed at the part of the upper beam of the window frame, which is connected with the upper ends of the first single-layer window stand columns, and the part of the upper beam of the window frame, which is connected with the upper ends of the second single-layer window stand columns.
And second window corner connecting plates are respectively constructed at the part where the lower cross beam of the window frame is connected with the lower end of the first single-layer window stand column and the part where the lower cross beam of the window frame is connected with the lower end of the second single-layer window stand column.
The rail vehicle side wall structure further comprises a plurality of side wall body cross beams which are arranged at intervals along the longitudinal direction of the side wall body; and a plurality of side wall body stand columns which are arranged at intervals along the length direction of the side wall body, wherein each side wall body stand column is intersected with the corresponding side wall body cross beam.
The window frame upper beam and the window frame lower beam are arranged in an intersecting mode with the side wall body stand columns, wherein first flanges extending towards the outside are constructed at the intersecting positions of the upper end faces of the side wall body stand columns and the window frame upper beam or the window frame lower beam, and the first flanges are arranged on the upper end faces of the window frame upper beam or the window frame lower beam.
And the second flanging extending towards the outside is constructed at the crossed part of the lower end face of the window frame upper beam or the window frame lower beam, and the second flanging is arranged on the lower end face of the window frame upper beam or the window frame lower beam.
And the side wall body stand columns are respectively provided with a first welding plate at the crossed positions of the upper window frame cross beam and the lower window frame cross beam, wherein the first welding plates are connected with the outer walls of the side wall body stand columns into a whole.
First connecting pieces with groove-shaped sections are arranged below the crossed parts of the side wall body stand columns and the window frame upper cross beam; and second connecting pieces with groove-shaped sections are arranged above the crossed parts of the side wall body stand columns and the window frame lower cross beam.
According to the second aspect of the application, the rail vehicle is further provided, and the rail vehicle side wall structure comprises the rail vehicle side wall structure.
(III) advantageous effects
The application provides a rail vehicle side wall structure compares with prior art, has following advantage:
because the window frame structure of the application is an integral single-layer structure, when the window frame structure is installed and welded on the side wall body, the procedure of welding the upper crossbeam of the window frame, the lower crossbeam of the window frame, the upright post of the first single-layer window and the upright post of the second single-layer window in the window frame structure to the side wall body one by one is omitted, so the welding procedure is greatly simplified, in addition, the procedure of welding the double-layer upright posts is also omitted, then the double-layer upright post is welded on the side wall body, which causes the complex welding condition, therefore, the side wall structure of the rail vehicle of the application designs the window frame structure into an integral single-layer structure, so the structure can be suitable for laser welding and spot welding, that is, the rail vehicle side wall structure of the present application has versatility in being suitable for laser welding and spot welding, and thus, in the welding or positioning process, the universality of the die and the positioning tool is greatly improved.
Drawings
Fig. 1 is an overall structural schematic diagram of a side wall structure of a rail vehicle according to an embodiment of the invention;
FIG. 2 is a schematic view of the overall structure of the window frame structure of FIG. 1;
FIG. 3 is a schematic view of a connection structure between an upper end surface of a lower beam and a vertical column of the window frame of FIG. 1;
FIG. 4 is a schematic view of the connection structure between the upper beam and the vertical column of the window frame in FIG. 1;
FIG. 5 is a schematic view of a connection structure between a lower end surface of a lower beam and a vertical column of the window frame of FIG. 1;
fig. 6 is a schematic structural view of a connection portion between the upper cross member of the window frame and the vertical pillar of the door region in fig. 1.
In the figure, 1: a sidewall body; 2: a window frame structure; 21: a window frame upper beam; 22: a lower beam of the window frame; 23: a first single layer window column; 24: a second single layer window column; 3: a first window corner connector tile; 4: a second corner connector tile; 5: a door pillar; 6: a door zone pillar; 7: a side wall body beam; 8: a sidewall body upright post; 9: a first flanging; 10: second flanging; 20: a first weld plate; 30: a first connecting member; 40: a second connecting member; 50: a second weld plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, the side wall structure of the rail vehicle is schematically shown to include a side wall body 1 and a window frame structure 2.
In the exemplary embodiment of the present application, a hollow region is formed on the sidewall body 1. Wherein the hollow area is used for mounting the frame structure 2, i.e. the hollow area is used for providing a mounting space for the frame structure 2.
The window frame structure 2 comprises a window frame upper cross beam 21, a window frame lower cross beam 22, a first single-layer window upright post 23 and a second single-layer window upright post 24, the window frame upper cross beam 21, the window frame lower cross beam 22, the first single-layer window upright post 23 and the second single-layer window upright post 24 are integrally formed and constructed into an integral single-layer structure, and the window frame structure 2 is embedded in the hollow area and welded with the side wall body 1 into a whole. Specifically, since the window frame structure 2 of the present application is an integral single-layer structure, when the window frame structure 2 is installed and welded to the side wall body 1, the process of welding the upper cross beam 21 of the window frame, the lower cross beam 22 of the window frame, the first single-layer window upright 23, and the second single-layer window upright 24, which are described below, of the window frame structure 2 to the side wall body 1 one by one is omitted, and thus, the welding process is greatly simplified, and in addition, the process of welding the double-layer upright is also omitted, and then the double-layer upright is welded to the side wall body 1, which leads to a complicated welding condition, it is apparent that the side wall structure of the rail vehicle of the present application is designed as an integral single-layer structure, and thus, the structure can be suitable for both laser welding and spot welding, that is, the side wall structure of the rail vehicle of the present application has versatility for both laser, in the welding or positioning process, the universality of the die and the positioning tool is greatly improved.
It should be noted that, because the application improves the universality of the die and the positioning tool, raw materials are saved to a certain extent, and the production cost is reduced.
In addition, by providing the window frame structure 2 as an integral single-layer structure, the structural strength and rigidity of the window region and the window corner can be effectively improved, and simultaneously, the flatness of the window region can be effectively improved. In addition, raw materials are greatly saved, and meanwhile, the positioning is simpler.
It should be further noted that the structure shown in fig. 1 may be used as a base module in a side wall structure of a rail vehicle, and when the structure is used specifically, the number of the base modules may be increased appropriately according to the actual length of a vehicle body of the rail vehicle.
In the embodiment of the application, the side wall structure of the rail vehicle further includes a door pillar 5 disposed on the side wall body 1 and a door area pillar 6 disposed side by side with the door pillar 5. It should be noted that the structure and arrangement of the door pillar 5 and the door section pillar 6 are well known to those skilled in the art, and will not be described in detail herein for the sake of brevity.
As shown in fig. 1 and 2, in a preferred embodiment of the present application, the window frame structure includes a window frame upper cross member 21 and a window frame lower cross member 22 disposed along a longitudinal direction of the sidewall body 1, and a first single-layer window pillar 23 and a second single-layer window pillar 24 disposed between the window frame upper cross member 21 and the window frame lower cross member 22, wherein the first single-layer window pillar 23, the window frame upper cross member 21, the second single-layer window pillar 24, and the window frame lower cross member 22 collectively enclose a window area. Specifically, in the process of connecting the first single-layer window upright 23, the window frame upper cross beam 21, the second single-layer window upright 24, and the window frame lower cross beam 22 to each other, the first single-layer window upright, the second single-layer window upright, and the window frame lower cross beam may be bent and the periphery of the window region may be assisted to be welded by laser.
The bending manner and the laser splicing welding manner are well known to those skilled in the art, and are not described in detail herein for the sake of brevity.
It should be noted that the transverse lengths of the upper window frame cross beam 21 and the lower window frame cross beam 22 are longer than the longitudinal lengths of the first single-layer window upright column 23 and the second single-layer window upright column 24, and the upper window frame cross beam 21 and the lower window frame cross beam 22 can also function as the cross beam 7 to enhance the overall structural strength of the sidewall body 1. The "lateral length" is the left-right direction shown in fig. 1, and the "longitudinal length" is the up-down direction shown in fig. 1.
As shown in fig. 1 and 2, in a preferred embodiment of the present application, first window corner connector plates 3 are formed at a portion where the sash upper cross member 21 is connected to the upper end of the first single-layered window column 23 and at a portion where the sash upper cross member 21 is connected to the upper end of the second single-layered window column 24. Specifically, the first corner connecting plate 3 may be welded to the connection portion between the upper cross beam 21 of the window frame and the upper end of the first single-layer window upright 23 and the connection portion between the upper cross beam 21 of the window frame and the upper end of the second single-layer window upright 24.
It should be noted that the first corner connector tile 3 is preferably an arc-shaped tile, which can enhance the structural strength of the corner welding part on one hand, and can effectively avoid the stress concentration on the other hand.
As shown in fig. 1 and 2, in a preferred embodiment of the present application, second window corner connector plates 4 are formed at a portion where the lower sash cross member 22 is coupled to the lower end of the first single-layered window column 23 and at a portion where the lower sash cross member 22 is coupled to the lower end of the second single-layered window column 24. Specifically, the second window corner connecting plate 4 may be welded to the lower end of the first single-layer window upright 23 and the lower end of the lower window frame cross member 22 and the lower end of the second single-layer window upright 24.
It should be noted that the second corner connector tile 4 is preferably an arc-shaped tile, which can enhance the structural strength of the corner welding part on one hand, and can effectively avoid the stress concentration on the other hand.
As shown in fig. 1, in another preferred embodiment of the present application, the rail vehicle sidewall structure further includes a plurality of sidewall body beams 7 and a plurality of sidewall body pillars 8, wherein the plurality of sidewall body beams 7 are arranged at intervals along the longitudinal direction of the sidewall body 1.
A plurality of side wall body stand columns 8 are arranged at intervals along the length direction of the side wall body 1, wherein each side wall body stand column 8 is intersected with the corresponding side wall body cross beam 7. Specifically, the plurality of side wall body pillars 8 may be arranged at intervals along the longitudinal direction of the side wall body 1, wherein the longitudinal length of the side wall body pillars 8 may be equal to the longitudinal length of the side wall body 1. The "longitudinal direction" refers to the vertical direction shown in fig. 1.
The side wall body cross beams 7 are arranged at intervals along the length direction of the side wall body 1, and each side wall body upright column 8 is intersected with the corresponding side wall body cross beam 7, so that a net structure is formed on the outer surface of the side wall body 1, and the integral structural strength and rigidity of the side wall body 1 can be effectively enhanced. Wherein, each of the side wall body beams 7 and each of the side wall body columns 8 can be arranged on the side wall body 1 in a welding manner.
It should be noted that the "transverse direction" and the "longitudinal direction" of the sidewall body 1 are both the left and right directions shown in fig. 1, and the "longitudinal direction" of the sidewall body 1 is the up and down direction shown in fig. 1.
As shown in fig. 3 to 5, in a preferred embodiment of the present application, the upper sash beam 21 and the lower sash beam 22 are disposed in an intersecting manner with each of the sidewall body pillars 8, wherein a first flange 9 extending outward is formed at each of the sidewall body pillars 8 and at a position intersecting with an upper end surface of the upper sash beam 21 or the lower sash beam 22, and the first flange 9 is disposed at the upper end surface of the upper sash beam 21 or the lower sash beam 22. Specifically, the arrangement of the first turned-over edge 9 eliminates the need of separately adding an "L" -shaped angle iron at the intersection of the upper end faces of each of the side wall body columns 8 and the window frame upper cross beam 21 or the window frame lower cross beam 22 in the prior art, thereby effectively simplifying the structure, reducing the welding amount, and improving the connection strength and rigidity between the window frame upper cross beam 21 and the window frame lower cross beam 22 and each of the side wall body columns 8.
It should be noted that the cross sections of the side wall body cross beam 7, the window frame upper cross beam 21 and the window frame lower cross beam 22 are all closed structures.
The cross sections of the side wall body upright column 8, the first single-layer window upright column 23 and the second single-layer window upright column 24 are all of a closed structure.
As shown in fig. 3 to 5, in a preferred embodiment of the present application, a second flange 10 extending outward is formed at each of the sidewall body pillars 8 and at a portion intersecting with a lower end surface of the sash upper beam 21 or the sash lower beam 22, and the second flange 10 is disposed at the lower end surface of the sash upper beam 21 or the sash lower beam 22. Specifically, the second flanges 10 are arranged, so that the condition that the L-shaped angle iron needs to be separately added to the intersecting position of the lower end faces of each of the side wall body columns 8 and the window frame upper cross beam 21 or the window frame lower cross beam 22 in the prior art is eliminated, the structure is effectively simplified, the welding amount is reduced, and the connection strength and the rigidity between the window frame upper cross beam 21 and the window frame lower cross beam 22 and each of the side wall body columns 8 are improved.
It should be noted that, the arrangement of the first turned-over edge 9 and the second turned-over edge 10 is equivalent to omitting the vertical edge additionally provided with the L-shaped angle iron, in this case, the welding of the vertical edge is omitted, the welding amount is reduced, and the deformation caused by the large welding amount is avoided.
In a preferred embodiment of the present application, as shown in fig. 1, a first welding plate 20 is disposed at each of the side wall body pillars 8 and at the intersection of the upper sash beam 21 and the lower sash beam 22, wherein the first welding plate 20 is integrally connected to the outer wall of the side wall body pillar 8. Specifically, the arrangement of the first welding plate 20 increases the contact area between the sidewall body upright post 8 and the window frame upper cross beam 21 and between the sidewall body upright post and the window frame lower cross beam 22, and enhances the welding strength, so that the connection strength and the rigidity between the sidewall body upright post 8 and the window frame upper cross beam 21 and between the sidewall body upright post and the window frame lower cross beam 22 are effectively improved.
As shown in fig. 6, in a preferred embodiment of the present application, a second welding plate 50 is provided at an end of the upper cross member 21 of the window frame at a portion connected to the door pillar 5. The second welded plate 50 corresponds to a plate-like structure extending from the end of the sash upper cross member 21 in the direction of the door pillar 5, and the second welded plate 50 is welded to the door pillar 5, that is, in surface-to-surface contact with the door pillar 5, thereby increasing the amount of welding between the end of the sash upper cross member 21 and the door pillar 5, and effectively improving the strength and rigidity of connection between the sash upper cross member 21 and the door pillar 5.
In another preferred embodiment of the present application, as shown in fig. 3, a first connecting member 30 having a trough-shaped cross section is provided below the intersection of each of the sidewall body pillars 8 and the sash upper cross member 21.
As shown in fig. 1 and 3, a second connecting member 40 with a trough-shaped cross section is arranged above the intersection of each side wall body upright 8 and the window frame lower cross beam 22. Specifically, the overall shape of the first connecting member 30 and the second connecting member 40 is similar to a groove shape, and each of the first connecting member 30 and the second connecting member 40 includes a groove bottom wall, a left side wall disposed on the left side of the groove bottom wall, and a right side wall disposed on the right side of the groove bottom wall. Wherein, the left side wall and the right side wall are arranged oppositely. The tank bottom wall is closely attached to the outer wall of the side wall body stand column 8, the left side wall is closely attached to the left side wall of the side wall body stand column, and the right side wall is closely attached to the right side wall of the side wall body stand column. Therefore, the arrangement of the first connecting piece 30 and the second connecting piece 40 effectively enhances the connection strength and rigidity between the side wall body upright post 8 and the window frame upper cross beam 21 and the window frame lower cross beam 22 respectively.
It should be noted that the terms "left side" and "right side" are both described with respect to the angle shown in fig. 3.
According to the second aspect of the application, the rail vehicle is further provided, and the rail vehicle side wall structure comprises the rail vehicle side wall structure.
In summary, since the window frame structure 2 of the present application is an integral single-layer structure, when the window frame structure 2 is installed and welded to the side wall body 1, the procedure of welding the upper cross beam 21 of the window frame, the lower cross beam 22 of the window frame, the upright post 23 of the first single-layer window, and the upright post 24 of the second single-layer window, which are described below, to the side wall body 1 one by one is omitted, so that the welding procedure is greatly simplified, and in addition, the procedure of welding the double-layer upright post is also omitted, and then the double-layer upright post is welded to the side wall body 1, so that the welding is complicated, it can be seen that the side wall structure of the rail vehicle of the present application is designed as an integral single-layer structure, so that the structure can be suitable for laser welding and spot welding, that is, the side wall structure of the rail vehicle of the present application has universality for laser welding, in the welding or positioning process, the universality of the die and the positioning tool is greatly improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a rail vehicle side wall structure, includes the side wall body it is regional to be constructed with cavity on the side wall body, its characterized in that still includes:
the window frame structure comprises a window frame upper cross beam, a window frame lower cross beam, a first single-layer window stand column and a second single-layer window stand column, wherein the window frame upper cross beam, the window frame lower cross beam, the first single-layer window stand column and the second single-layer window stand column are integrally formed and are constructed into an integral single-layer structure, and the window frame structure is embedded in the hollow area and is welded with the side wall body into a whole;
the rail vehicle side wall structure further comprises a plurality of side wall body cross beams and a plurality of side wall body stand columns, wherein the plurality of side wall body cross beams are arranged at intervals along the longitudinal direction of the side wall body, the longitudinal direction of the side wall body is the height direction of the side wall body, and the plurality of side wall body stand columns are arranged at intervals along the length direction of the side wall body; the window frame upper beam and the window frame lower beam are arranged in an intersecting mode with the side wall body stand columns.
2. The rail vehicle side wall structure of claim 1, wherein the window frame upper cross beam and the window frame lower cross beam are arranged along a longitudinal direction of the side wall body, the first single-layer window stand column and the second single-layer window stand column are respectively arranged between the window frame upper cross beam and the window frame lower cross beam, and the first single-layer window stand column, the window frame upper cross beam, the second single-layer window stand column and the window frame lower cross beam together enclose a window area.
3. The rail vehicle side wall structure according to claim 2, wherein first window corner joint plates are formed at a portion where the window frame upper cross member is connected to the upper end of the first single-layer window pillar and at a portion where the window frame upper cross member is connected to the upper end of the second single-layer window pillar.
4. The rail vehicle side wall structure according to claim 2 or 3, wherein second window corner joint plates are formed at a portion where the window frame lower beam is connected to the lower end of the first single-layer window pillar and at a portion where the window frame lower beam is connected to the lower end of the second single-layer window pillar.
5. The rail vehicle side wall structure of claim 2, wherein each side wall body upright is intersected with a corresponding side wall body cross beam.
6. The rail vehicle side wall structure of claim 5, wherein a first flange extending outward is formed at a position where each of the side wall body columns intersects with the upper end face of the window frame upper beam or the window frame lower beam, and the first flange is disposed on the upper end face of the window frame upper beam or the window frame lower beam.
7. The rail vehicle side wall structure of claim 6, wherein a second flange extending outward is formed at a position where each of the side wall body columns intersects with the lower end surface of the window frame upper beam or the window frame lower beam, and the second flange is disposed on the lower end surface of the window frame upper beam or the window frame lower beam.
8. The rail vehicle side wall structure of claim 5, wherein a first welding plate is arranged at each side wall body upright and at a position where the side wall body upright intersects with the window frame upper cross beam and the window frame lower cross beam respectively, and the first welding plate is integrally connected with the outer wall of the side wall body upright.
9. The rail vehicle side wall structure according to claim 8, wherein a first connecting member having a groove-shaped cross section is provided below a portion where each of the side wall body pillars intersects with the window frame upper cross member;
and second connecting pieces with groove-shaped sections are arranged above the crossed parts of the side wall body stand columns and the window frame lower cross beam.
10. A rail vehicle, characterized by comprising a rail vehicle sidewall construction according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910794412.XA CN110466550B (en) | 2019-08-27 | 2019-08-27 | Rail vehicle side wall structure and rail vehicle |
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| CN201910794412.XA CN110466550B (en) | 2019-08-27 | 2019-08-27 | Rail vehicle side wall structure and rail vehicle |
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| CN113002575B (en) * | 2021-01-04 | 2023-03-03 | 中车青岛四方机车车辆股份有限公司 | Modularized assembly welding structure and method for side wall unit of rail vehicle |
| CN113335320B (en) * | 2021-06-25 | 2023-02-24 | 中车唐山机车车辆有限公司 | Connecting device for rail vehicle and rail vehicle |
| CN114368400A (en) * | 2022-01-19 | 2022-04-19 | 江苏中科聚合新材料产业技术研究院有限公司 | Light environment-friendly high-speed rail interior side wall plate and low-cost preparation method thereof |
| DE102022209047A1 (en) * | 2022-08-31 | 2024-02-29 | Siemens Mobility GmbH | Shell, in particular a side wall and/or a vehicle door, for receiving a window for a vehicle, in particular a rail vehicle, method for producing the shell and the vehicle comprising the shell |
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|---|---|
| CN110466550A (en) | 2019-11-19 |
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