CN112498377A - Support, carriage and rail vehicle - Google Patents

Support, carriage and rail vehicle Download PDF

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Publication number
CN112498377A
CN112498377A CN202011502298.8A CN202011502298A CN112498377A CN 112498377 A CN112498377 A CN 112498377A CN 202011502298 A CN202011502298 A CN 202011502298A CN 112498377 A CN112498377 A CN 112498377A
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CN
China
Prior art keywords
top plate
middle top
frame assembly
bracket
support body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011502298.8A
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Chinese (zh)
Inventor
张衔
李家德
梁清帅
陶小虎
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CRCC High Tech Equipment Corp Ltd
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CRCC High Tech Equipment Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRCC High Tech Equipment Corp Ltd filed Critical CRCC High Tech Equipment Corp Ltd
Priority to CN202011502298.8A priority Critical patent/CN112498377A/en
Publication of CN112498377A publication Critical patent/CN112498377A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The embodiment of the application provides a support, a carriage and a rail vehicle, wherein the support comprises a support body, the support body is used for connecting parts to be overhauled, and is fixed on a middle top plate, the first end of the support body is rotatably connected with the middle top plate, and at least one end of the support body except the first end is detachably connected with the middle top plate; the bracket body and the middle top plate have a first state and a second state which are opposite, and when the bracket body and the middle top plate are in the first state, the bracket body is fixedly connected to the middle top plate; when the support body and the middle top plate are in the second state, the first end of the support body is hinged with the middle top plate, and the support body can rotate towards the inside of the vehicle body. The embodiment of the application can realize the maintenance operation of parts to be maintained without arranging a special maintenance port on the side wall of the vehicle body, thereby being favorable for improving the appearance attractiveness of the carriage.

Description

Support, carriage and rail vehicle
Technical Field
The application relates to a rail vehicle part manufacturing technology, in particular to a support, a carriage and a rail vehicle.
Background
In recent years, rail vehicles have gradually become the first choice of transportation means for people to go out due to the characteristics of comfort, safety, reliability and the like. The carriage of the railway vehicle consists of a vehicle body and a plurality of parts installed in the vehicle body, the installation positions of the parts in the vehicle body are fixed after the carriage is designed, and workers only need to install and overhaul specific parts at the fixed positions.
In the related art, part of the electric parts in the vehicle compartment is mounted in the gap between the ceiling of the vehicle compartment and the ceiling of the vehicle body. For example, the auxiliary generator in the vehicle cabin is usually disposed on a side close to the vehicle body, one side of the auxiliary generator faces the inside of the vehicle body, and the other side of the auxiliary generator abuts against the side wall of the vehicle body, and the auxiliary generator is provided with access doors on both sides of the auxiliary generator.
Disclosure of Invention
The embodiment of the application provides a support, carriage and rail vehicle, mainly used solve and need set up the access hole on the car body side wall among the correlation technique, influence the problem of the whole outward appearance of carriage.
According to a first aspect of embodiments of the present application, there is provided a bracket provided between a center roof panel and a roof panel of a vehicle body, including:
the support body is used for being connected with a part to be overhauled and is fixed on the middle top plate, wherein the first end of the support body is rotatably connected with the middle top plate, and at least one end of the support body except the first end is detachably connected with the middle top plate;
the bracket body and the middle top plate have a first state and a second state which are opposite, and when the bracket body and the middle top plate are in the first state, the bracket body is fixedly connected to the middle top plate; when the support body and the middle top plate are in the second state, the first end of the support body is hinged to the middle top plate, and the support body can rotate towards the inside of the vehicle body.
Optionally, the bracket body includes an upper frame assembly, a lower frame assembly and a plurality of connecting rods connecting the upper frame assembly and the lower frame assembly, the upper frame assembly is used to connect the component to be overhauled, and the lower frame assembly is fixed on the middle top plate.
Optionally, the upper frame assembly includes a plurality of upper connecting rods connected end to end and at least one upper reinforcing rod connecting two oppositely disposed upper connecting rods, and the upper connecting rods are provided with fixing holes for fixing the parts to be inspected.
According to the bracket, optionally, four fixing holes are uniformly formed in the upper frame assembly, and the fixing holes are threaded holes.
Optionally, the lower frame assembly includes a plurality of lower connecting rods connected end to end and at least one lower reinforcing rod connecting two lower connecting rods arranged oppositely, a connecting plate is arranged between two adjacent lower connecting rods, the connecting plate at the first end is rotatably connected with the middle top plate, and the rest of the connecting plates are detachable from the middle top plate by fasteners.
The bracket as described above, optionally, the connecting plate at the first end is hingedly connected to the middle top plate or is connected by bolts.
As for the support, optionally, a plurality of mounting seats are arranged on the middle top plate, the mounting seats correspond to the connecting plates one to one, the connecting plate at the first end is connected to the mounting seats through bolts, the rest of the connecting plates are detachably connected to the mounting seats through fasteners, and the fasteners include bolts or screws.
According to the bracket, optionally, a first reinforcing rib is arranged between the connecting rod and the upper frame assembly; and a second reinforcing rib is arranged between the connecting rod and the lower frame assembly.
As for the support, optionally, a plurality of universal wheel assemblies are further disposed on the lower frame assembly, and the universal wheel assemblies can abut against the middle top plate to drive the support body to move.
Optionally, the universal wheel assembly includes a fixed seat, a universal ball and an adjusting member, one end of the fixed seat is fixed on the lower frame assembly, and the other end of the fixed seat is provided with an adjusting hole which is a threaded hole; the adjusting piece comprises a screw rod and a universal mounting seat, one end of the screw rod is arranged in the threaded hole, and the other end of the screw rod is fixedly connected with the universal mounting seat; the universal ball is rotatably arranged in the universal mounting seat.
According to a second aspect of the embodiments of the present application, there is provided a vehicle compartment, including a vehicle body, a middle roof panel is disposed in the vehicle body, a plurality of electrical components are disposed between the middle roof panel and the roof panel of the vehicle body, and at least one of the electrical components is disposed in the vehicle body through the bracket as described in any one of the above.
According to a third aspect of the embodiments of the present application, there is provided a rail vehicle comprising a plurality of end-to-end cars, wherein at least one of the cars employs a car as described above.
The support comprises a support body, the support body is used for being connected with parts to be overhauled, the support body is fixed on the middle top plate, the first end of the support body is rotatably connected with the middle top plate, and at least one end of the support body except the first end is detachably connected with the middle top plate; the bracket body and the middle top plate have a first state and a second state which are opposite, and when the bracket body and the middle top plate are in the first state, the bracket body is fixedly connected to the middle top plate; when the support body and the middle top plate are in the second state, the first end of the support body is hinged with the middle top plate, and the support body can rotate towards the inside of the vehicle body. The bracket body and the middle top plate have a first state and a second state which are opposite, and under a normal condition, the bracket body and the middle top plate can be kept in the first state, so that parts to be overhauled on the bracket body are normally installed in a vehicle body; when the spare part that treats to overhaul overhauls the operation, can make support body and well roof keep under the second state for the support body can rotate towards the automobile body is inside, thereby drives and treats the rotation of overhauing spare part, in order to expose and treat one side that overhaus spare part is towards the automobile body side wall under normal condition. The embodiment of the application can realize the maintenance operation of parts to be maintained without arranging a special maintenance port on the side wall of the vehicle body, thereby being favorable for improving the appearance attractiveness of the carriage.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a simplified structural diagram of a stent according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a stent body according to an embodiment of the present application;
FIG. 3 is a front view of a body of a stent provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic view of a connection structure of a universal ball and an adjusting member according to an embodiment of the present application;
fig. 5 is a diagram illustrating a usage state of the stent provided by an embodiment of the present application.
Reference numerals:
10-a stent body; 101-a first end;
100-upper frame assembly; 110-an upper link; 111-fixation holes; 120-upper stiffeners;
200-a lower frame assembly; 210-a lower link; 220-lower stiffener; 230-a connecting plate; 231-connecting holes;
300-a connecting rod;
400-a mounting seat;
500-a first stiffener;
600-a second stiffener;
700-a gimbal assembly; 710-a holder; 720-universal ball; 730-an adjustment member; 731-screw; 732-universal mount.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
FIG. 1 is a simplified structural diagram of a stent according to an embodiment of the present application; please refer to fig. 1.
The embodiment provides a support, support setting is between the roof of well roof and automobile body, includes:
the support comprises a support body 10, wherein the support body 10 is used for connecting parts to be overhauled, the support body 10 is fixed on a middle top plate, a first end 101 of the support body 10 is rotatably connected with the middle top plate, and at least one end of the support body 10 except the first end 101 is detachably connected with the middle top plate;
the bracket body 10 and the middle top plate have a first state and a second state which are opposite, and when the bracket body 10 and the middle top plate are in the first state, the bracket body 10 is fixedly connected to the middle top plate; when the bracket body 10 and the middle roof are in the second state, the first end of the bracket body 10 is hinged to the middle roof and the bracket body 10 can rotate towards the inside of the vehicle body.
As can be seen from the above description, the bracket body 10 and the middle roof plate of the present embodiment have the first state and the second state opposite to each other, and under a normal condition, the bracket body 10 and the middle roof plate can be kept in the first state, so that the component to be repaired on the bracket body 10 is normally installed in the vehicle body; when the spare part that treats to overhaul overhauls the operation, can make support body 10 and well roof keep under the second state for support body 10 can rotate towards the automobile body is inside, thereby drives and treats the rotation of overhauing the spare part, in order to expose and treat one side that overhauing the spare part towards the automobile body side wall under normal condition. The embodiment can realize the maintenance operation of parts to be maintained without arranging a special maintenance port on the side wall of the vehicle body, thereby being beneficial to improving the appearance attractiveness of the carriage.
FIG. 2 is a schematic illustration of a stent body according to an embodiment of the present application; FIG. 3 is a front view of a body of a stent provided in accordance with an embodiment of the present application; please continue to refer to fig. 1-3.
In an alternative embodiment, the bracket body 10 includes an upper frame assembly 100, a lower frame assembly 200, and a plurality of connecting rods 300 connecting the upper frame assembly 100 and the lower frame assembly 200, wherein the upper frame assembly 100 is used for connecting parts to be repaired, and the lower frame assembly 200 is fixed on the middle roof.
Specifically, the upper frame assembly 100 includes a plurality of upper connecting rods 110 connected end to end and at least one upper reinforcing rod 120 connecting two upper connecting rods 110 arranged oppositely, and the upper connecting rods 110 are provided with fixing holes 111 for fixing parts to be inspected.
Furthermore, four fixing holes 111 are uniformly formed in the upper frame assembly 100, and the fixing holes 111 are all threaded holes.
In this embodiment, the upper frame assembly 100 includes four upper connecting rods 110, the four upper connecting rods 110 surround a rectangle, the upper reinforcing rods 120 are connected to two longer sides of the rectangle, and four fixing holes 111 are also arranged on two longer sides of the rectangle, two fixing holes 111 are arranged on each side, and the fixing holes 111 on the two sides are arranged symmetrically to each other. The fixing holes 111 may be connected and fixed with corresponding holes on the to-be-detected component through fixing bolts and other parts.
The lower frame assembly 200 includes a plurality of lower connecting rods 210 connected end to end and at least one lower reinforcing rod 220 connecting two lower connecting rods 210 arranged oppositely, a connecting plate 230 is arranged between two adjacent lower connecting rods 210, and a connecting hole 231 is arranged on the connecting plate 230. The link plates 230 at the first end 101 are pivotally connected to the middle top plate, and the remaining link plates 230 are detachable from the middle top plate using fasteners.
Alternatively, the connecting plate 230 at the first end 101 and the middle top plate may be connected by a hinge or by bolts. When the hinged connection mode is adopted, the connection between the connection plate 230 of the first end 101 and the middle top plate can be realized by using a hinged shaft, the hinged shaft can simultaneously penetrate through the connection plate 230 and the middle top plate, and at this time, the two are in the hinged connection state no matter what state the bracket body 10 and the middle top plate are in.
Further, a plurality of mounting seats 400 may be provided on the middle top plate, the plurality of mounting seats 400 correspond to the plurality of connecting plates 230 one by one, the connecting plate 230 located at the first end 101 is connected to the mounting seat 400 by a bolt, and the remaining connecting plates 230 are detachably connected to the mounting seats 400 by a fastener, which may be a common part such as a bolt or a screw. When the bolt connection mode is adopted, the connection plate 230 of the first end 101 and the middle top plate have different states according to different states of the bracket body 10 and the middle top plate; when the bracket body 10 and the middle top plate are in the first state, the connecting plate 230 of the first end 101 can be fixedly connected with the middle top plate through bolts; when the bracket body 10 and the middle top plate are in the second state, the bolt connecting the connecting plate 230 of the first end 101 and the middle top plate is loosened without being removed, and the stud on the loosened bolt is used as a rotating shaft to realize the rotation of the bracket body 10 relative to the middle top plate.
Optionally, in this embodiment, a first reinforcing rib 500 is disposed between the connecting rod 300 and the upper frame assembly 100; a second reinforcing rib 600 is disposed between the connecting rod 300 and the lower frame assembly 200. As shown in fig. 1 and 2, the first reinforcing rib 500 and the second reinforcing rib 600 of the present embodiment are triangular flat plates, and two right-angle sides of the flat plates are respectively welded to the first reinforcing rib 500 and the upper frame assembly 100 or the lower frame assembly 200 connected thereto. The first reinforcing beads 500 and the second reinforcing beads 600 can improve the overall strength of the bracket and prevent the bracket from being deformed.
Further, in order to realize the movement of the support body 10, in this embodiment, a plurality of universal wheel assemblies 700 are further disposed on the lower frame assembly 200, and the universal wheel assemblies 700 can abut against the middle top plate to drive the support body 10 to move.
FIG. 4 is a schematic view of a connection structure of a universal ball and an adjusting member according to an embodiment of the present application; please refer to fig. 1 and 4. The universal wheel assembly 700 of the present embodiment includes a fixing seat 710, a universal ball 720 and an adjusting member 730, wherein one end of the fixing seat 710 is fixed on the lower frame assembly 200, and the other end of the fixing seat 710 is provided with an adjusting hole, which is a threaded hole; the adjusting part 730 comprises a screw 731 and a universal mounting seat 732, one end of the screw 731 is arranged in the threaded hole, and the other end of the screw 731 is fixedly connected with the universal mounting seat 732; universal ball 720 is rotatably disposed within universal mount 732, and in this embodiment universal mount 732 is optionally a member such as a hex nut.
FIG. 5 is a diagram illustrating a use state of a stent provided by an embodiment of the present application; please refer to fig. 5. The stand of this embodiment has two different use states, wherein a normal use state is shown by a solid line in fig. 5, and a maintenance state is shown by a broken line. Under the normal use state, the bracket body 10 and the middle top plate are kept in the first state, and at this time, the connecting plates 230 located at the four corners of the bracket body 10 and the mounting base 400 are all connected by bolt fastening. In the maintenance state, the bracket body 10 and the middle top plate are kept in the second state, at this time, except the connecting plate 230 and the mounting seat 400 at the first end 101, the connecting plates 230 at the other three corners are not connected with the mounting seat 400, and the connecting bolts between the connecting plate 230 and the mounting seat 400 at the first end 101 are loosened, and the bolts only use the studs to function as rotating shafts and have no pre-tightening effect.
During maintenance, the length of the screw 731 in the adjusting hole is adjusted, so that the universal ball 720 is in contact with the middle top plate, and then the support body 10 is rotated towards the inside of the vehicle body, so that maintenance operation is performed on parts to be maintained, which are arranged on the support body 10; after the overhaul is completed, the support body 10 can be moved back to the position in the first state before the overhaul, then the length of the screw 731 in the adjusting hole is adjusted again, so that the universal ball 720 is separated from the middle top plate, and finally each connecting plate 230 is connected with the mounting seat 400 through bolt fastening.
Example two
The embodiment provides a carriage, which comprises a vehicle body, wherein a middle top plate is arranged in the vehicle body, a plurality of electric parts are arranged between the middle top plate and the top plate of the vehicle body, and at least one electric part is arranged in the vehicle body through the support in the first embodiment.
The carriage of this embodiment is owing to adopted the support mounting electric component of above-mentioned embodiment one, consequently need not to set up special access hole on the automobile body side wall and can realize the maintenance operation to electric component to be favorable to improving the aesthetic property of carriage outward appearance.
EXAMPLE III
The embodiment provides a railway vehicle, which comprises a plurality of end-to-end carriages, wherein at least one carriage adopts the carriage in the second embodiment.
The railway vehicle of the embodiment adopts the carriage of the second embodiment, so that the maintenance operation of the electric parts can be realized without arranging a special maintenance hole on the side wall of the vehicle body, thereby being beneficial to improving the appearance attractiveness of the carriage.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (12)

1. A bracket provided between a center roof panel and a roof panel of a vehicle body, comprising:
the support body is used for being connected with a part to be overhauled and is fixed on the middle top plate, wherein the first end of the support body is rotatably connected with the middle top plate, and at least one end of the support body except the first end is detachably connected with the middle top plate;
the bracket body and the middle top plate have a first state and a second state which are opposite, and when the bracket body and the middle top plate are in the first state, the bracket body is fixedly connected to the middle top plate; when the support body and the middle top plate are in the second state, the first end of the support body is hinged to the middle top plate, and the support body can rotate towards the inside of the vehicle body.
2. The bracket of claim 1, wherein the bracket body comprises an upper frame assembly, a lower frame assembly and a plurality of connecting rods connecting the upper frame assembly and the lower frame assembly, the upper frame assembly is used for connecting the parts to be overhauled, and the lower frame assembly is fixed on the middle top plate.
3. The support of claim 2, wherein the upper frame assembly comprises a plurality of upper connecting rods connected end to end and at least one upper reinforcing rod connecting two oppositely arranged upper connecting rods, and fixing holes for fixing the parts to be overhauled are formed in the upper connecting rods.
4. The bracket according to claim 3, wherein four fixing holes are uniformly formed in the upper frame assembly, and the fixing holes are threaded holes.
5. The support of claim 2, wherein the lower frame assembly includes a plurality of lower links connected end to end and at least one lower stiffener connecting two oppositely disposed lower links, a connecting plate is disposed between two adjacent lower links, the connecting plate at the first end is rotatably connected to the middle top plate, and the remaining connecting plates are detachable from the middle top plate using fasteners.
6. The bracket of claim 5, wherein the connecting plate at the first end is hingedly connected or bolted to the middle top plate.
7. The bracket according to claim 6, wherein a plurality of mounting seats are arranged on the middle top plate, the mounting seats correspond to the connecting plates one by one, the connecting plate at the first end is connected with the mounting seats through bolts, the rest of the connecting plates are detachably connected with the mounting seats through the fasteners, and the fasteners comprise bolts or screws.
8. The bracket of claim 2, wherein a first reinforcing rib is arranged between the connecting rod and the upper frame assembly; and a second reinforcing rib is arranged between the connecting rod and the lower frame assembly.
9. The support of claim 2, wherein the lower frame assembly further comprises a plurality of universal wheel assemblies, and the universal wheel assemblies can abut against the middle top plate to drive the support body to move.
10. The bracket according to claim 9, wherein the universal wheel assembly comprises a fixed seat, a universal ball and an adjusting piece, one end of the fixed seat is fixed on the lower frame assembly, the other end of the fixed seat is provided with an adjusting hole, and the adjusting hole is a threaded hole; the adjusting piece comprises a screw rod and a universal mounting seat, one end of the screw rod is arranged in the threaded hole, and the other end of the screw rod is fixedly connected with the universal mounting seat; the universal ball is rotatably arranged in the universal mounting seat.
11. A vehicle compartment, comprising a vehicle body, wherein a middle roof panel is arranged in the vehicle body, a plurality of electrical components are arranged between the middle roof panel and the roof panel of the vehicle body, and at least one of the electrical components is arranged in the vehicle body through a bracket according to any one of claims 1 to 10.
12. A rail vehicle comprising a plurality of end-to-end cars, wherein at least one of said cars utilizes a car according to claim 11.
CN202011502298.8A 2020-12-18 2020-12-18 Support, carriage and rail vehicle Pending CN112498377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011502298.8A CN112498377A (en) 2020-12-18 2020-12-18 Support, carriage and rail vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011502298.8A CN112498377A (en) 2020-12-18 2020-12-18 Support, carriage and rail vehicle

Publications (1)

Publication Number Publication Date
CN112498377A true CN112498377A (en) 2021-03-16

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ID=74922451

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011502298.8A Pending CN112498377A (en) 2020-12-18 2020-12-18 Support, carriage and rail vehicle

Country Status (1)

Country Link
CN (1) CN112498377A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115123318A (en) * 2022-07-19 2022-09-30 中车唐山机车车辆有限公司 Rail vehicle electrical equipment mounting system
CN115140106A (en) * 2022-07-29 2022-10-04 中车唐山机车车辆有限公司 Rail vehicle and hanging weight mounting rack

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115123318A (en) * 2022-07-19 2022-09-30 中车唐山机车车辆有限公司 Rail vehicle electrical equipment mounting system
CN115123318B (en) * 2022-07-19 2023-04-25 中车唐山机车车辆有限公司 Rail vehicle electrical equipment installation system
CN115140106A (en) * 2022-07-29 2022-10-04 中车唐山机车车辆有限公司 Rail vehicle and hanging weight mounting rack
CN115140106B (en) * 2022-07-29 2024-03-22 中车唐山机车车辆有限公司 Rail vehicle and hanging yard mounting bracket

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