CN209870564U - Double-deck automobile body skeleton and double-deck passenger train - Google Patents
Double-deck automobile body skeleton and double-deck passenger train Download PDFInfo
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- CN209870564U CN209870564U CN201920248461.9U CN201920248461U CN209870564U CN 209870564 U CN209870564 U CN 209870564U CN 201920248461 U CN201920248461 U CN 201920248461U CN 209870564 U CN209870564 U CN 209870564U
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Abstract
The utility model relates to a double-deck automobile body skeleton and double-deck passenger train, including chassis and the side wall skeleton of connection on the chassis, the side wall skeleton is connected with well floor structure in the middle part of direction of height, the side wall skeleton includes the side wall stand of vertical extension and the side wall boundary beam of extending from beginning to end, the side wall boundary beam includes rectangular shape girder, the inboard of girder is equipped with the well floor connection structure that is used for being connected with well floor structure, be equipped with the through passage that supplies the vertical passing of side wall stand on the girder body in the position that corresponds to each side wall stand, side wall stand and side wall boundary beam form a plurality of contained angles in the cross position, at least one contained angle position is equipped with the angular form connecting piece; the automobile body skeleton changes traditional automobile body skeleton and adopts welded fixed mode, and not only convenient assembling, moreover, at the in-process of assembly, automobile body skeleton can not take place to warp, and the assembly precision is guaranteed.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to a double-deck automobile body skeleton and double-deck passenger train.
Background
With the continuous development of the transportation industry, the transportation capacity is greatly improved, and the double-deck passenger car plays an increasingly important role as a transportation vehicle. In the prior art, the framework structure of the double-deck passenger car comprises a bottom frame and a side wall framework, and a middle floor structure is connected to the middle part of the side wall framework in the height direction, so that the layering of the passenger car is realized.
The existing double-deck passenger car is a framework skin steel car body welding structure, namely the double-deck passenger car framework is formed by welding steel profiles (such as channel steel or square steel), and by adopting the assembling method of the double-deck passenger car framework, although the structural strength can be ensured, the following disadvantages exist: on one hand, because the body framework of the double-layer passenger car has larger volume and more steel sectional materials are needed, the operation of welding the steel sectional materials one by one is troublesome; on the other hand, double-deck passenger train skeleton texture is when the welding, need enclose many crossbeams of welding between the skeleton in both sides, and in welding process, the welding stress of each crossbeam department is different, leads to both sides to enclose the skeleton and take place the distortion to the uniformity that leads to whole skeleton texture is difficult to guarantee, thereby influences automobile body skeleton's assembly precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double-deck automobile body skeleton to solve among the prior art problem that troublesome poeration and automobile body skeleton assembly precision are difficult to guarantee when automobile body skeleton adopts the welding. And simultaneously, the utility model also provides a double-deck passenger train to solve the problem that double-deck passenger train assembly difficulty and assembly precision are difficult to guarantee.
In order to achieve the above object, the utility model discloses double-deck automobile body skeleton's technical scheme does:
the utility model provides a double-deck automobile body skeleton, including chassis and the side wall skeleton of connection on the chassis, the side wall skeleton is connected with well floor structure at direction of height's mid-portion, the side wall skeleton includes vertical extension's side wall stand and the side wall boundary beam of extending around, the side wall boundary beam includes rectangular shape girder body, the inboard of girder body is equipped with the well floor connection structure who is used for with well floor structural connection, be equipped with the through passage who supplies the vertical passing of side wall stand at the position that corresponds to each side wall stand on the girder body, side wall stand and side wall boundary beam form a plurality of contained angles at cross position, at least one contained angle position department is equipped with angular form connecting piece, angular form connecting piece has the laminating wall with the laminating of side wall stand and side wall boundary beam respectively, and be connected with side wall stand and side wall boundary.
Has the advantages that: the utility model discloses an automobile body skeleton is when the assembly, and the side wall stand passes the side wall boundary beam through running through the passageway, can realize the fixed connection of side wall stand and side wall boundary beam through angular connector, the utility model provides an automobile body skeleton changes traditional automobile body skeleton and adopts welded fixed mode, and not only convenient assembling, moreover, at the in-process of assembly, automobile body skeleton can not take place to warp, and the assembly precision is guaranteed.
Furthermore, in order to facilitate the assembly of the main beam body of the side wall side beam and the side wall upright posts, through grooves with outward openings are formed in the main beam body at positions corresponding to the side wall upright posts, and the through grooves form the through passages.
Furthermore, in order to ensure the assembling strength of the main beam body of the side wall boundary beam and the side wall upright post, the angular connecting pieces are arranged at four included angle positions formed by the cross of the main beam body and the side wall upright post.
Furthermore, in order to ensure the structural strength of the middle floor connecting structure and facilitate the connection with the middle floor structure, the middle floor connecting structure comprises a reinforcing beam body positioned on the inner side of the main beam body and an overlapping structure positioned on the inner side of the reinforcing beam body, and the middle floor connecting structure is in overlapping connection with the middle floor structure through the overlapping structure.
Furthermore, in order to ensure the assembly strength between the middle floor connecting structure and each side wall stand column, at least one of an upper included angle position and a lower included angle position formed by the reinforcing beam body and each side wall stand column is provided with the angle-shaped connecting piece.
Further, in order to facilitate the connection between the middle floor connecting structure and the middle floor structure, the middle floor connecting structure has a lap joint structure for lap joint with the middle floor structure, and is lap joint with the middle floor structure through the lap joint structure.
Furthermore, in order to ensure the connection strength between the middle floor structure and the lap joint structure, a bonding glue layer and a connecting screw are arranged between the middle floor structure and the lap joint structure.
Furthermore, in order to conveniently overlap the floor structure and the lap joint structure, the floor structure comprises a plate body and edge-covering sections connected to two sides of the plate body, the edge-covering sections are connected with the lap joint structure in an overlapping mode, and the lap joint position is coated with a bonding glue layer.
Further, in order to make the overlap joint structure simple and the overlap joint intensity higher with the overlap joint form of the section bar of borduring, the overlap joint structure is for having two facades and two planar stair structures, the section bar of borduring is Z shape structure, and through its and stair structure's two facades and two plane laminating's face overlap joint on side wall boundary beam, the adjacent facade and the plane of Z shape section bar of borduring dorsad side wall boundary beam one side form the overlap joint groove, the plate body overlap joint in the overlap joint inslot and with section bar adhesive connection of borduring.
In order to achieve the above purpose, the utility model discloses double-deck passenger train's technical scheme does:
the utility model provides a double-deck passenger train, including double-deck automobile body skeleton, double-deck automobile body skeleton includes the chassis and connects the side wall skeleton on the chassis, the side wall skeleton is connected with well floor structure at direction of height's mid-portion, the side wall skeleton includes vertical extension's side wall stand and the side wall boundary beam of extending around, the side wall boundary beam includes rectangular shape girder, the inboard of the girder is equipped with the well floor connection structure who is used for with well floor structural connection, be equipped with the through passage who supplies the vertical passing of side wall stand at the position that corresponds to each side wall stand on the girder, side wall stand and side wall boundary beam form a plurality of contained angles at cross position, at least one contained angle position department is equipped with angular form connecting piece, angular form connecting piece has the laminating wall respectively with side wall stand and side wall boundary beam laminating, and be connected with side wall stand and side.
Has the advantages that: the utility model discloses a double-deck passenger train includes double-deck automobile body skeleton, and the automobile body skeleton passes the side wall boundary beam through running through the passageway when the assembly, can realize the fixed connection of side wall stand and side wall boundary beam through angular connector, the utility model provides an automobile body skeleton changes traditional automobile body skeleton and adopts welded fixed mode, and not only convenient assembling, moreover, at the in-process of assembly, automobile body skeleton can not take place to warp, and the assembly precision is guaranteed.
Furthermore, in order to facilitate the assembly of the main beam body of the side wall side beam and the side wall upright posts, through grooves with outward openings are formed in the main beam body at positions corresponding to the side wall upright posts, and the through grooves form the through passages.
Furthermore, in order to ensure the assembling strength of the main beam body of the side wall boundary beam and the side wall upright post, the angular connecting pieces are arranged at four included angle positions formed by the cross of the main beam body and the side wall upright post.
Furthermore, in order to ensure the structural strength of the middle floor connecting structure and facilitate the connection with the middle floor structure, the middle floor connecting structure comprises a reinforcing beam body positioned on the inner side of the main beam body and an overlapping structure positioned on the inner side of the reinforcing beam body, and the middle floor connecting structure is in overlapping connection with the middle floor structure through the overlapping structure.
Furthermore, in order to ensure the assembly strength between the middle floor connecting structure and each side wall stand column, at least one of an upper included angle position and a lower included angle position formed by the reinforcing beam body and each side wall stand column is provided with the angle-shaped connecting piece.
Further, in order to facilitate the connection between the middle floor connecting structure and the middle floor structure, the middle floor connecting structure has a lap joint structure for lap joint with the middle floor structure, and is lap joint with the middle floor structure through the lap joint structure.
Furthermore, in order to ensure the connection strength between the middle floor structure and the lap joint structure, a bonding glue layer and a connecting screw are arranged between the middle floor structure and the lap joint structure.
Furthermore, in order to conveniently overlap the floor structure and the lap joint structure, the floor structure comprises a plate body and edge-covering sections connected to two sides of the plate body, the edge-covering sections are connected with the lap joint structure in an overlapping mode, and the lap joint position is coated with a bonding glue layer.
Further, in order to make the overlap joint structure simple and the overlap joint intensity higher with the overlap joint form of the section bar of borduring, the overlap joint structure is for having two facades and two planar stair structures, the section bar of borduring is Z shape structure, and through its and stair structure's two facades and two plane laminating's face overlap joint on side wall boundary beam, the adjacent facade and the plane of Z shape section bar of borduring dorsad side wall boundary beam one side form the overlap joint groove, the plate body overlap joint in the overlap joint inslot and with section bar adhesive connection of borduring.
Drawings
FIG. 1 is a schematic structural view of a middle floor of a double-deck body frame of the present invention;
FIG. 2 is a side view of the specific attachment structure shown at B in FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a cross-sectional view of a side sill;
FIG. 6 is a schematic cross-sectional view of a binding profile;
FIG. 7 is a front view of a second angle connector;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is a front view of a third triangular connector;
fig. 10 is a side view of fig. 9.
In the figure: 1-side wall column, 11-column clamping groove, 2-side wall boundary beam, 20-main beam body, 21-reinforcing beam body, 210-upper wall surface, 211-lower wall surface, 212-hollow inner cavity, 213-reinforcing rib, 22-lap joint structure, 220-boundary beam lap joint surface, 23-boundary beam clamping groove, 30-first angle-shaped connecting piece, 31-second angle-shaped connecting piece, 310-upper edge connecting surface, 311-horizontal connecting surface, 312-inclined strut, 32-third angle-shaped connecting piece, 320-inclined connecting surface, 321-lower edge connecting surface, 322-reinforcing strut, 4-middle floor structure, 41-upper side horizontal part, 42-lower side horizontal part, 43-vertical part, 44-glue containing groove, 45-lap joint groove and 400-top plate structure lap joint surface.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a specific embodiment of double-deck automobile body skeleton, the automobile body skeleton of this embodiment are aluminum alloy skeleton, as shown in fig. 1-4, double-deck automobile body skeleton includes the chassis and connects the side wall skeleton on the chassis, and the side wall skeleton is connected with well floor structure 4 at the middle part of direction of height. The side wall framework comprises a vertically extending side wall upright post 1 and a front and back extending side wall boundary beam 2, wherein upright post clamping grooves 11 are respectively arranged on the front side surface and the back side surface of the side wall upright post 1; the side wall boundary beam 2 comprises a strip-shaped main beam body 20, the inner side of the main beam body 20 is provided with a middle floor connecting structure, and the upper side and the lower side of the main beam body 20 are respectively provided with a boundary beam clamping groove 23; the main beam body 20 is provided with a through channel at a position corresponding to each side wall upright post 1 for the side wall upright posts 1 to vertically pass through, and specifically, the main beam body 20 is provided with a through groove with an outward opening at a position corresponding to each side wall upright post 1, and the through groove forms the through channel. Each side wall upright post 1 penetrates through the side wall boundary beam 2 from the through channel and forms a cross with the side wall boundary beam 2 respectively.
In order to increase the structural strength of the middle floor connecting structure, as shown in fig. 5, the middle floor connecting structure includes a reinforcing beam body 21 inside a main beam body 20 and a lap structure 22 inside the reinforcing beam body 21, and in other embodiments, the reinforcing beam body may not be disposed inside the main beam body, and the lap structure may be directly disposed inside the main beam body. The reinforcing beam body 21 comprises an upper wall surface 210 extending horizontally, a lower wall surface 211 extending obliquely, a girder body 20 inner side surface connecting the upper wall surface 210 and the lower wall surface 211 at the outer side of the reinforcing beam body 21, a connecting boundary beam lapping surface 220 connecting the upper wall surface 210 and the lower wall surface 211 at the inner side of the reinforcing beam body 21, a hollow inner cavity 212 enclosed by the upper wall surface 210, the lower wall surface 211, the inner side surface of the girder body 20 and the connecting boundary beam lapping surface 220 together, and reinforcing ribs 213 extending forwards and backwards are arranged in the hollow inner cavity 212 in order to increase the structural strength of the reinforcing beam body 21. The lap joint structure 22 is a step structure having two vertical faces and two planar faces, and the two vertical faces and the two planar faces form the sill lap joint 220. In other embodiments, the overlapping structure may also be a zigzag structure having one vertical surface and two flat surfaces, in which case the one vertical surface and the two flat surfaces form the edge beam overlapping surface.
Well floor structure 4 includes the plate body and connects the section bar of borduring at the plate body both sides, and in other embodiments, well floor structure also can only constitute by the plate body, forms the overlap joint face with two adjacent faces of plate body, also directly with the plate body overlap joint on well floor connection structure's boundary beam overlap joint face promptly. As shown in fig. 6, the hemming material is a Z-shaped structure, the middle floor structure 4 is overlapped on the side surrounding frame 2 by the surfaces of the hemming material jointed with two vertical surfaces and two planes of the step structure, specifically, the hemming material comprises an upper horizontal part 41, a lower horizontal part 42 and a vertical part 43 connecting the upper horizontal part 41 and the lower horizontal part 42, and the hemming material has a roof structure overlapping surface 400 matched with the two vertical surfaces and the two planes of the overlapping structure 22, specifically, the roof structure overlapping surface 400 comprises a first roof structure overlapping surface, a second roof structure overlapping surface, a third roof structure overlapping surface and a fourth roof structure overlapping surface, wherein the first roof structure overlapping surface is a vertical extending surface of the upper horizontal part 41 facing to one side of the side frame, the second roof structure overlapping surface is a lower side surface of the upper horizontal part 41 connected with the first roof structure overlapping surface, the third roof structure overlapping surface is the connection surface of the vertical part 43 facing the side beam and connected with the third roof structure overlapping surface, and the fourth roof structure overlapping surface is the connection surface of the lower horizontal part 42 close to the side beam and connected with the third roof structure overlapping surface.
Certainly, in other embodiments, the edge-covering section bar is of a Z-shaped structure and comprises an upper horizontal plane, a lower horizontal plane and a vertical plane connecting the upper horizontal plane and the lower horizontal plane, and at the moment, an overlapping structure which is matched and lapped with the edge-covering section bar is also of a Z-shaped structure; or the edge-covering section bar is of an L-shaped structure and comprises a vertical part and a lower horizontal part connected to the lower end of the vertical part; or the edge-covering section bar is of a U-shaped structure with an opening facing the plate body and comprises an upper horizontal part, a lower horizontal part and a vertical part connecting the upper horizontal part and the lower horizontal part, and at the moment, the upper horizontal part and the lower horizontal part are both arranged on one side of the vertical part facing the plate body. The Z shape section bar of borduring is back to adjacent facade formation overlap joint groove 45 of boundary beam one side for carry out the overlap joint with the plate body, and the contained angle position department of overlap joint groove 45 is provided with holds gluey groove 44, and in other embodiments, also can not set up and hold gluey groove, but sets up the chamfer structure in the one corner position with the plate body of overlap joint groove contained angle adaptation, makes to form the space that is used for holding unnecessary viscose between chamfer structure and the overlap joint groove.
In order to realize the fixed connection of the side wall boundary beam 2 and the side wall upright post 1, four included angle positions formed by the cross intersection of the side wall boundary beam 2 and the side wall upright post 1 are respectively provided with a first angle-shaped connecting piece 30, the first angle-shaped connecting piece 30 is provided with two attaching walls, the two attaching walls are respectively inserted into the boundary beam clamping groove 23 of the main beam body 20 and the upright post clamping groove 11 on the side wall upright post 1 and are respectively attached to the side wall upright post 1 and the side wall boundary beam 2, the two attaching walls are respectively provided with a screw hole, and the two attaching walls are respectively fixedly connected with the side wall upright post 1 and the side wall boundary beam 2 through screws. Or in other embodiments, the first angled connecting part may be arranged at two included angles above the side wall boundary beam of four included angles formed by the cross of the side wall boundary beam and the side wall upright post, and the first angled connecting part is not arranged at two included angles below the side wall boundary beam.
When the side wall side beams 2 and the side wall pillars 1 form a cross, the reinforcing beam body 21 of the side wall side beams 2 and each side wall pillar 1 form an upper included angle and a lower included angle respectively, and a second angle-shaped connecting member 31 is arranged at the upper included angle, as shown in fig. 7-8, the second angle-shaped connecting member 31 includes an upper edge connecting surface 310, a horizontal connecting surface 311 and an inclined strut 312 connected between the upper edge connecting surface 310 and the horizontal connecting surface 311, and screw holes are respectively arranged on the upper edge connecting surface 310 and the horizontal connecting surface 311, the upper edge connecting surface 310 is used for being attached to the inner side surface of the side wall pillar 1 and fixedly connected through screws, the horizontal connecting surface 311 is used for being attached to the upper wall surface 210 of the reinforcing beam body 21 and fixedly connected through screws, in other embodiments, the second angle-shaped connecting member may only include the upper edge connecting surface and the horizontal.
The third connecting triangle 32 is disposed at the lower included angle position, as shown in fig. 9-10, the third connecting triangle 32 includes an inclined connecting surface 320, a lower edge connecting surface 321, and a reinforcing brace 322 connected to the inclined connecting surface 320 and the lower edge connecting surface 321, and screw holes are respectively disposed on the inclined connecting surface 320 and the lower edge connecting surface 321, the inclined connecting surface 320 is used for being attached to the lower wall surface 211 of the reinforcing beam body 21 and being fixedly connected by screws, and the lower edge connecting surface 321 is used for being attached to the inner side surface of the side wall pillar 1 and being fixedly connected by screws.
The utility model discloses in, the through passage of the 2 girder bodies 20 of side wall boundary beam is passed from side wall stand 1 and is formed the cross to first angular form connecting piece 30 through four angle departments that form at the cross, the second angular form connecting piece 31 of the last contained angle position department that side wall stand 1 and the 2 stiffening beam bodies 21 of side wall boundary beam formed, the side wall stand 1 realizes the screw connection of side wall stand 1 and side wall boundary beam 2 with the third angular form connecting piece 32 of the lower contained angle position department that the stiffening beam bodies 21 of side wall stand 1 and side wall boundary beam 2 formed, thereby form the side wall skeleton. Then, the lap joint structure 22 in the middle floor connecting structure is made to lap joint with the hemming sections in the middle floor structure 4, thereby forming a double body frame.
In this embodiment, the second angle-shaped connecting piece and the third triangle-shaped connecting piece are respectively arranged at the upper included angle position and the lower included angle position, and in other embodiments, the second angle-shaped connecting piece may be arranged only at the upper included angle position, or the third triangle-shaped connecting piece may be arranged only at the lower included angle position. In this embodiment, the front and back both sides face of side wall stand is provided with the stand draw-in groove respectively, and the upper and lower both sides of the girder body are provided with the boundary beam draw-in groove respectively, and in other embodiments, also can not set up stand draw-in groove and boundary beam draw-in groove, and first angular form connecting piece directly forms fixed connection with side wall stand, the girder body. In this embodiment, the through channel is formed by a through groove with an outward opening provided at a position corresponding to each side wall pillar on the main beam body, and in other embodiments, the through channel may also be formed by a closed through groove provided at a position corresponding to each side wall pillar.
In the above various embodiments, the vehicle body frame is an aluminum alloy frame, and it should be noted that, here the aluminum alloy frame can refer to the vehicle body frame that various beam column structures of the vehicle body frame are aluminum alloy sections, and also can refer to that partial beam column structure of the vehicle body frame is aluminum alloy sections, specifically the utility model discloses in, at least side wall stand and side wall boundary beam are aluminum alloy sections.
The utility model discloses a double-deck passenger train's embodiment is: the double-deck passenger car includes double-deck body skeleton, and double-deck body skeleton is the same with the double-deck body skeleton structure in above-mentioned embodiment, and the repeated description is no longer repeated here.
Claims (10)
1. A double-layer vehicle body framework comprises a chassis and a side wall framework connected to the chassis, wherein a middle floor structure (4) is connected to the middle part of the side wall framework in the height direction, and the double-layer vehicle body framework is characterized in that the side wall framework comprises vertically extending side wall upright posts (1) and front and back extending side wall boundary beams (2), each side wall boundary beam (2) comprises a strip-shaped main beam body (20), the inner side of each main beam body (20) is provided with a middle floor connecting structure used for being connected with the middle floor structure (4), a through channel for the vertical penetration of the side wall upright posts (1) is arranged on the main beam body (20) at the position corresponding to each side wall upright post (1), a plurality of included angles are formed at the crossing position of the side wall upright posts (1) and the side wall boundary beams (2), an angular connecting piece is arranged at least one included angle position, and provided with a joint wall surface respectively jointed, and are respectively connected with the side wall upright post (1) and the side wall boundary beam (2) through the attaching wall surface.
2. The double-deck vehicle body frame according to claim 1, wherein a through-groove is provided in the main body (20) at a position corresponding to each side body pillar (1), the through-groove forming the through-passage.
3. The double-deck vehicle body framework of claim 1 or 2, wherein the corner connecting pieces are arranged at four included angles formed by the criss-cross of the main beam body (20) and the side wall upright posts (1).
4. The double-deck vehicle body framework according to claim 1 or 2, wherein the middle floor connecting structure comprises a reinforcing beam body (21) inside the main beam body (20) and a lap joint structure (22) inside the reinforcing beam body (21), and the middle floor connecting structure is lap-jointed with the middle floor structure (4) through the lap joint structure (22).
5. The double-deck vehicle body framework according to claim 4, wherein the angle connecting member is provided at least one of an upper angle position and a lower angle position formed by the reinforcing beam body (21) and each side body pillar (1).
6. Double-deck body framework according to claim 1 or 2, wherein the intermediate floor connecting structure has a lap joint structure (22) for lap joint with the intermediate floor structure (4) and is lap-joined with the intermediate floor structure (4) by the lap joint structure (22).
7. Double-deck body framework according to claim 6, wherein a glue line and connecting screws are provided between the intermediate floor structure (4) and the bridging structure (22).
8. The double-layer vehicle body framework of claim 6, wherein the middle floor structure (4) comprises a plate body and edge-covering sections connected to two sides of the plate body, the middle floor structure (4) is in lap joint with the lap joint structure through the edge-covering sections, and the lap joint position is coated with an adhesive layer.
9. The double-layer vehicle body framework of claim 8, wherein the lap joint structure (22) is a step structure with two vertical faces and two planes, the edge covering section is of a Z-shaped structure and is lapped on the side edge beam (2) through the face of the lap joint structure, which is attached to the two vertical faces and the two planes of the step structure, the adjacent vertical face and the plane of one side, facing away from the side edge beam (2), of the Z-shaped edge covering section form a lap joint groove (45), and the plate body is lapped in the lap joint groove (45) and is connected with the edge covering section in an adhesive mode.
10. A double-deck passenger vehicle comprising the double-deck body frame according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248461.9U CN209870564U (en) | 2019-02-27 | 2019-02-27 | Double-deck automobile body skeleton and double-deck passenger train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248461.9U CN209870564U (en) | 2019-02-27 | 2019-02-27 | Double-deck automobile body skeleton and double-deck passenger train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209870564U true CN209870564U (en) | 2019-12-31 |
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ID=68953450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920248461.9U Active CN209870564U (en) | 2019-02-27 | 2019-02-27 | Double-deck automobile body skeleton and double-deck passenger train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209870564U (en) |
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2019
- 2019-02-27 CN CN201920248461.9U patent/CN209870564U/en active Active
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |