CN114771583B - Integral turnover type roof for railway sealed transportation of long and large cargoes - Google Patents
Integral turnover type roof for railway sealed transportation of long and large cargoes Download PDFInfo
- Publication number
- CN114771583B CN114771583B CN202210465300.1A CN202210465300A CN114771583B CN 114771583 B CN114771583 B CN 114771583B CN 202210465300 A CN202210465300 A CN 202210465300A CN 114771583 B CN114771583 B CN 114771583B
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- roof
- vehicle
- frame
- support
- opening
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- 230000007306 turnover Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 24
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 241000192308 Agrostis hyemalis Species 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
- B61D3/16—Wagons or vans adapted for carrying special loads
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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
- B61D17/12—Roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
- B61D39/006—Opening and closing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
- B61D39/008—Sealing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Seal Device For Vehicle (AREA)
Abstract
The invention relates to an integral turnover type roof for railway sealed transportation of long and large cargoes, which comprises the following components: the vehicle body comprises a vehicle roof frame, a vehicle body and a vehicle body, wherein one side of the vehicle roof frame is movably connected with the top of a side wall on one side of the vehicle body, and the other side of the vehicle roof frame is an opening and closing side; a roof panel, which is arranged on the roof frame in a covering manner; the roof fixing support is arranged along the circumferential direction of the top of the side wall and the end wall of the vehicle body and is used for supporting and limiting the roof frame; the roof opening and closing mechanisms are arranged in two and are respectively arranged in two ends of the roof frame; one end of each roof opening and closing mechanism is connected with the end wall, and the other end of each roof opening and closing mechanism is connected with the roof frame. The invention can integrally open the cover to load and unload large-sized cargoes from the top, the length of the cargo loading and unloading port is close to the whole length of the car body, the car roof is sealed during transportation, and the invention can be matched with transportation of large-sized cargoes with the requirement of storage and transportation temperature.
Description
Technical Field
The invention relates to the technical field of railway transportation vehicles, in particular to an integral turnover type roof for railway sealed transportation of long and large cargoes.
Background
The railway box wagon is a vehicle with end walls, side walls and a roof, can transport various sun-proof and moisture-proof goods, is generally loaded and unloaded through side doors, is limited by the opening size of door holes, and cannot load goods with larger overall dimensions. In order to solve the problem of large cargo handling, china begins to study a special boxcar on a movable roof, and cargo can be handled from the top of the car.
The movable roof forms of the railway freight car disclosed at present mainly comprise: split-level flat-open, folding, hanging cover type, split turnover type and integral turnover type. Split-level flat-open, folding, and suspended roof, the roof opening is only a portion of the total roof, and it is not possible to load and unload longer cargo. The split turnover type and the integral turnover type can be used for opening the roof completely, but one end of the driving device is arranged on the underframe of the vehicle or at a position vertically lower than the vehicle, so that loading and unloading of end door personnel into the vehicle or cargoes are affected, and the driving device is complex and occupies a large amount of space in the vehicle, so that the vehicle is not suitable for loading longer cargoes. Meanwhile, the roof of the types only has a rainproof function and a sealing function at present, and cannot meet the function of transporting goods with sealing requirements.
Disclosure of Invention
The invention aims to solve the problems, and the invention provides the integral turnover type roof for transporting long and large cargoes in a railway sealing way, which can be used for loading and unloading large cargoes from the top by integrally opening the cover, the length of a cargo loading and unloading port is close to the whole length of a car body, the roof is sealed during transportation, and the roof can be matched with the transportation of large cargoes with the storage and transportation temperature requirement, and meanwhile, the loading and unloading of people to and from the car or the cargoes are not influenced by an end door.
In order to achieve the above purpose, the present invention adopts the following technical scheme: an integral roll-over roof for railway sealed transportation of large cargo, comprising: the vehicle body comprises a vehicle roof frame, a vehicle body and a vehicle body, wherein one side of the vehicle roof frame is movably connected with the top of a side wall on one side of the vehicle body, and the other side of the vehicle roof frame is an opening and closing side; a roof panel, which is arranged on the roof frame in a covering manner; the roof fixing support is circumferentially arranged along the top of the side wall and the end wall of the vehicle body and used for supporting and limiting the roof frame; the roof opening and closing mechanisms are arranged in two and are respectively arranged in two ends of the roof frame; one end of each roof opening and closing mechanism is connected with the end wall, and the other end of each roof opening and closing mechanism is connected with the roof frame.
Further, a roof seal assembly is provided in the circumferential direction of the roof frame in the roof fixed support upper portion.
Further, the roof sealing component adopts a labyrinth waterproof structure and comprises a clamping plate and a sealing strip; the clamping plate is arranged on the roof fixed support, the sealing strip is a rubber strip with a lip edge, and the sealing strip is inlaid and fixed between the clamping plate and the roof fixed support.
Further, the middle locking device fixed at the top of the side wall is arranged in the middle of the roof fixed support and used for locking the closed roof frame and preventing vertical movement.
Further, the middle locking device comprises a pressing hook, a roof clamping lug, a support, a pressing electric push rod and a tailstock; the pressing hooks are matched with the car roof clamping lugs to realize locking, the car roof clamping lugs are arranged on the car roof frame, the support is arranged on the side wall, and the tailstock is arranged on the car roof fixed support or the side wall; one end of the pressing electric push rod is hinged with the tailstock, and the other end of the pressing electric push rod is hinged with one end of the pressing hook; the other end of the pressing hook is hinged on the support.
Further, the roof frame adopts a truss structure with semi-closed ends; the cross section outline of the roof frame is of a variable cross section structure with a thick middle part and thin two sides.
Further, the lower edge beam adopts a box structure with a flange.
Further, the roof fixed support comprises a roof lower side beam, a roof support, a rotating seat and a roof pin; the vehicle roof lower side beam is arranged at the top of the vehicle roof side wall or the end wall, and the vehicle roof support is arranged on the vehicle roof lower side beam;
the side wall top is connected with the roof frame, the rotating seat assemblies are arranged on the lower side beam of the roof at intervals, and one side of the roof frame is movably connected with the side wall top through the rotating seat assemblies;
the roof pins used for preventing the roof frame from transversely and longitudinally moving are arranged on the roof lower side beam at intervals on the opening and closing side.
Furthermore, the roof support adopts an L-shaped structure with a cross section, the flanges face the inner sides of the side walls and the end walls, and the plane is arranged on the roof lower side beam.
Further, the vehicle roof opening and closing mechanism comprises an upper hinged support, a push rod and a lower hinged support; the upper hinge support is arranged on the roof frame close to the opening and closing side, the lower hinge support is arranged on a supporting beam of the end wall, and the supporting beam of the end wall is above the end door opening.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. on the premise of meeting the strength and rigidity, the size of the cargo loading and unloading opening at the top of the truck is increased, the loading and unloading requirement of cargoes with larger length is met, large cargoes can be loaded and unloaded from the top by integrally opening the cover, the length of the cargo loading and unloading opening is close to the whole length of the truck body, the truck roof is sealed during transportation, the large cargoes with the storage and transportation temperature requirement can be matched for transportation, and the gap of the railway sealed transportation roof for the large cargoes is filled.
2. The roof driving mechanism is positioned above the end door, and the setting position of the roof driving mechanism needs to meet the requirement of operators for entering and exiting.
3. The invention can reduce the deformation of the vehicle roof, and simultaneously, the gap of the vehicle roof adopts a labyrinth waterproof structure, and the sealing strip is arranged inside the waterproof structure, so that the vehicle roof has good waterproof and sealing performances and can ensure the sealing quality of the vehicle roof.
Drawings
FIG. 1 is a schematic view of the overall structure of a vehicle roof according to an embodiment of the present invention;
FIG. 2 is a partial block diagram of a roof frame in accordance with one embodiment of the present invention;
FIG. 3 is a diagram of a roof support structure in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a roof waterproof and sealing structure in accordance with an embodiment of the present invention;
FIG. 5 is a block diagram of an intermediate locking device according to an embodiment of the present invention;
fig. 6 is a view showing an installation of the roof opening/closing mechanism on a vehicle in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The invention relates to an integral turnover type roof for railway sealed transportation of long and large cargoes, which comprises the following components: the roof frame, one side of which is movably connected with the top of one side wall, and the other side of which is an opening and closing side; the roof board is covered on the roof frame and is used for rain-proof and sealing of the upper part of the turnover type roof; the roof fixing support is circumferentially arranged along the tops of the side walls and the end walls and used for supporting and limiting a roof frame; the two roof opening and closing mechanisms are respectively arranged inside two ends of the roof frame; one end of each roof opening and closing mechanism is connected with the end wall, and the other end is connected with the roof frame. The invention can integrally open the cover to load and unload large-sized cargoes from the top, the length of the cargo loading and unloading port is close to the whole length of the car body, the car roof is sealed during transportation, and the invention can be matched with transportation of large-sized cargoes with the requirement of storage and transportation temperature. The opening and closing mechanism capable of opening and closing synchronously can open and close the whole roof by at least 90 degrees without affecting the entrance and exit of end door personnel and occupying less space in the vehicle.
In one embodiment of the present invention, an integrated roll-over roof for railway sealed transportation of large cargo is provided. In this embodiment, the convertible top is a movable top, which has light weight, high rigidity, and small opening/closing deformation, as shown in fig. 1, and the convertible top includes:
a roof frame 1, one side of which is movably connected with the top of a side wall on one side of the vehicle body, and the other side of the roof frame 1 is an opening and closing side;
the roof panel 2 is arranged on the roof frame 1 in a covering manner and is used for rain-proof and sealing of the upper part of the turnover type roof;
the roof fixed support 3 is circumferentially arranged along the top of the side wall and the end wall of the vehicle body and is used for supporting and limiting the roof frame 1;
roof opening and closing mechanisms 6 provided in two, respectively provided inside both ends of the roof frame 1; one end of each roof opening/closing mechanism 6 is connected to the end wall, and the other end is connected to the roof frame 1, and the roof is opened by rotating the roof from one side to the other side by at least 90 ° by the two roof opening/closing mechanisms 6.
In use, when the roof is closed, the roof frame 1 is placed on the roof fixed support 3, so that the roof frame 3 can be prevented from moving transversely and longitudinally. The roof opening and closing mechanism 6 can realize the functions of opening and closing the roof, and the opening angle can reach at least 90 degrees; meanwhile, the roof opening and closing mechanisms 6 on two sides can be synchronously opened and closed, so that the roof is prevented from being distorted and deformed due to uneven stress.
In the above embodiment, as shown in fig. 2, the roof frame 1 is a truss structure with semi-closed ends formed by assembling and welding a longitudinal beam 11, a lower side beam 12, a large bent beam 13, a small bent beam 14, a forward beam 15, a cross beam 16 and an end door frame 17; the cross section outline of the roof frame 1 is of a variable cross section structure with thick middle part and thin two sides, so that the rigidity of the middle part of the roof frame 1 is high, the deformation is small during opening and closing, the occupied transverse space of the bottom is small, and the reserved cargo space is large.
Preferably, the rocker 12 is box-shaped with a flange 121.
Wherein, the middle of the roof frame 1 is provided with two longitudinal beams 11 with through length, two sides are provided with box-shaped lower side beams 12 with large vertical dimension and small transverse dimension, and the longitudinal beams 11 and the lower side beams 12 are connected by adopting a large bending beam 13 with variable cross section and a small bending beam 14.
In the above embodiment, as shown in fig. 3, the roof fixed support 3 includes the roof lower rail 31, the roof mount 32, the pivot seat assembly 33, and the roof pin 34. The roof lower side rail 31 is welded to the top of a roof side wall or an end wall, and a roof support 32 is welded to the roof lower side rail 31; the side wall top is positioned at one side connected with the roof frame 1, a rotating seat assembly 33 is welded on the roof lower side beam 31 at intervals, and one side of the roof frame 1 is movably connected with the side wall top through the rotating seat assembly 33; roof pins 34 for preventing the roof frame 1 from moving laterally and longitudinally are welded to the roof lower rail 31 on the opening and closing side at intervals.
Preferably, the roof support 32 is of an L-shaped cross-section, with the flange facing inwardly of the side wall and being welded to the roof side rail 31 in a planar manner.
Wherein the rotating seat assembly 33 comprises a rotating shaft seat and a rotating shaft; the hole of the rotating shaft seat is semicircular, and the rotating shaft is fixed by a clamping plate fastened by bolts.
In the above embodiment, the roof seal assembly 4 is provided on the upper portion of the roof fixing support 3 and in the circumferential direction of the roof frame 1.
As shown in fig. 4, the roof sealing assembly 4 adopts a labyrinth waterproof structure, which includes a clamping plate 41 and a sealing strip 42. The clamping plate 41 is welded on the roof support 32 of the roof fixed support 3, and the sealing strip 42 is a rubber strip with lips and is inlaid and fixed between the clamping plate 41 and the roof support 32 of the roof fixed support 3. Preferably, the seal strip 42 is a lip-pressed type.
When the roof is closed, the flange 121 of the roof rocker 12 can block rainwater from entering the vehicle, and the bottom surface of the rocker 12 presses down on the lip of the roof sealing strip to prevent air from flowing inside and outside to form a seal.
In the above embodiment, the middle locking device 5 fixed at the top of the side wall and the end wall is arranged at the middle of the roof fixing support 3 at the opening and closing side, and is used for locking the closed roof frame 1 and preventing vertical movement.
As shown in fig. 5, the middle locking device 5 includes a press hook 51, a roof clip 52, a support 53, a press electric push rod 54 and a tailstock 55. The press hook 51 is matched with the roof clamping lug 52 to realize locking, the roof clamping lug 52 is welded on the roof frame 1, the support 53 is welded on the side wall, and the tailstock 55 is welded on the roof fixed support 3 or the side wall; one end of the pressing electric push rod 54 is hinged with the tailstock 55, and the other end of the pressing electric push rod is hinged with one end of the pressing hook 51; the other end of the press hook 51 is hinged to a support 53. When the pressing electric push rod 54 is pushed, the pressing hook 51 is pressed into the roof clamping lug 52, so that a roof locking function is realized.
In the above-described embodiment, as shown in fig. 6, the roof opening and closing mechanism 6 includes the upper hinge support 61, the push rod 62, and the lower hinge support 63. The upper articulated support 61 is welded on the large curved beam 13 of the roof frame 1 near the opening and closing side, the lower articulated support 63 is welded on the supporting beam 7 of the end wall, and the supporting beam 7 of the end wall is above the opening of the end door 8, so that personnel access cannot be influenced.
In the present embodiment, the roof opening and closing mechanism 6 is driven by a hydraulic or electric push rod.
In summary, the roof of the invention can be opened integrally, the roof frame 1 adopts a semi-closed truss structure, the self weight is light, the rigidity is high, the opening and closing deformation is small, the rigidity and the strength meet that a set of roof opening and closing mechanisms 6 are respectively arranged at two ends of the long roof, and the two sets of opening and closing mechanisms can be opened and closed simultaneously, and can be rotated from one side to the other side for at least 90 degrees. When the roof is opened, the length of the cargo loading and unloading port is close to the whole length of the vehicle body, and the length of the cargo which can be loaded and unloaded is larger. The upper hinged support 61 is directly welded with the large camber beam 13 of the roof frame 1, the initial position of the roof opening and closing mechanism 6 has a small included angle with the horizontal plane, and the lower hinged support 63 is integrally positioned above the end door, so that the requirement of operators for entering and exiting from the end door is met. According to the different optimization roof structures of load direction and size, under the condition that intensity, rigidity are satisfied, the width space that the roof occupy is few, and the goods space of reservation is big. The roof gap adopts a labyrinth waterproof structure, a sealing strip is arranged inside the waterproof structure, and the roof is waterproof and has good sealing performance.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. An integral roll-over roof for railway sealed transportation of large cargo, comprising:
the vehicle roof comprises a vehicle roof frame (1), wherein one side of the vehicle roof frame is movably connected with the top of a side wall on one side of a vehicle body, and the other side of the vehicle roof frame (1) is an opening and closing side;
a roof panel (2), wherein the roof panel (2) is arranged on the roof frame (1);
the roof fixed support (3) is circumferentially arranged along the top of the side wall and the end wall of the vehicle body and is used for supporting and limiting the roof frame (1);
roof opening and closing mechanisms (6) which are arranged in two and are respectively arranged in two ends of the roof frame (1); one end of each roof opening and closing mechanism (6) is connected with the end wall, and the other end is connected with the roof frame (1);
a roof sealing component (4) is arranged at the upper part of the roof fixed support (3) and in the circumferential direction of the roof frame (1);
the roof sealing component (4) adopts a labyrinth waterproof structure and comprises a clamping plate (41) and a sealing strip (42); the clamping plate (41) is arranged on the roof fixed support (3), the sealing strip (42) is a rubber strip with a lip edge, and the sealing strip is inlaid and fixed between the clamping plate (41) and the roof fixed support (3);
the middle locking device (5) fixed at the top of the side wall is arranged in the middle of the roof fixed support (3) and used for locking the closed roof frame (1) and preventing vertical movement;
the roof frame (1) is formed by welding a longitudinal beam (11), a lower side beam (12), a large bent beam (13), a small bent beam (14), a forward beam (15), a cross beam (16) and an end door frame (17) into a truss structure with semi-closed end parts; the cross section outline of the roof frame (1) is of a variable cross section structure with a thick middle part and thin two sides;
the vehicle roof opening and closing mechanism (6) comprises an upper hinged support (61), a push rod (62) and a lower hinged support (63); the upper articulated support (61) is arranged on a large bent beam (13) of the roof frame (1) close to the opening side, the lower articulated support (63) is arranged on a supporting beam of the end wall, and the supporting beam of the end wall is above an end door opening;
when the roof is opened, the length of the cargo loading and unloading port is close to the whole length of the vehicle body;
the middle locking device (5) comprises a pressing hook (51), a roof clamping lug (52), a support (53), a pressing electric push rod (54) and a tailstock (55);
the pressing hook (51) is matched with the roof clamping lug (52) to realize locking, the roof clamping lug (52) is arranged on the roof frame (1), the support (53) is arranged on a side wall, and the tailstock (55) is arranged on the roof fixed support (3) or the side wall; one end of the pressing electric push rod (54) is hinged with the tailstock (55), and the other end of the pressing electric push rod is hinged with one end of the pressing hook (51); the other end of the pressing hook (51) is hinged on the support (53);
the vehicle roof fixed support (3) comprises a vehicle roof lower side beam (31), a vehicle roof support (32), a rotating seat assembly (33) and a vehicle roof pin (34);
the vehicle roof lower side beam (31) is arranged at the top of the vehicle roof side wall or the end wall, and the vehicle roof support (32) is arranged on the vehicle roof lower side beam (31);
the side wall top is positioned at the top of the side wall connected with the roof frame (1), the rotating seat assemblies (33) are arranged on the lower side beam (31) of the roof at intervals, and one side of the roof frame (1) is movably connected with the top of the side wall through the rotating seat assemblies (33);
the roof lower side member (31) on the opening and closing side is provided with the roof pin (34) at an interval for preventing the roof frame (1) from moving laterally and longitudinally.
2. The one-piece roll-over roof for the sealed transportation of large and large goods by rail according to claim 1, characterized in that the rocker (12) is of box-type construction with flanges.
3. The integral turnover roof for railway sealed transportation of large and large cargoes as claimed in claim 1, wherein said roof support (32) is of L-shaped cross section, and flanges are provided on said roof underside member (31) toward the inner side of the side wall and the end wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210465300.1A CN114771583B (en) | 2022-04-29 | 2022-04-29 | Integral turnover type roof for railway sealed transportation of long and large cargoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210465300.1A CN114771583B (en) | 2022-04-29 | 2022-04-29 | Integral turnover type roof for railway sealed transportation of long and large cargoes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114771583A CN114771583A (en) | 2022-07-22 |
| CN114771583B true CN114771583B (en) | 2024-02-23 |
Family
ID=82434759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210465300.1A Active CN114771583B (en) | 2022-04-29 | 2022-04-29 | Integral turnover type roof for railway sealed transportation of long and large cargoes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114771583B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202703598U (en) * | 2012-08-16 | 2013-01-30 | 南车二七车辆有限公司 | Entire overturning type roof structure for rail wagon |
| CN105383510A (en) * | 2015-12-14 | 2016-03-09 | 南车长江车辆有限公司 | Opening-closing top cover for railway wagon and railway wagon |
| CN108928355A (en) * | 2017-05-25 | 2018-12-04 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN114379599A (en) * | 2021-11-05 | 2022-04-22 | 中车长江车辆有限公司 | Refrigerator carriage and railway refrigerator car with same |
-
2022
- 2022-04-29 CN CN202210465300.1A patent/CN114771583B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202703598U (en) * | 2012-08-16 | 2013-01-30 | 南车二七车辆有限公司 | Entire overturning type roof structure for rail wagon |
| CN105383510A (en) * | 2015-12-14 | 2016-03-09 | 南车长江车辆有限公司 | Opening-closing top cover for railway wagon and railway wagon |
| CN108928355A (en) * | 2017-05-25 | 2018-12-04 | 中车齐齐哈尔车辆有限公司 | A kind of rocket body transport vehicle and rocket body handling method |
| CN114379599A (en) * | 2021-11-05 | 2022-04-22 | 中车长江车辆有限公司 | Refrigerator carriage and railway refrigerator car with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114771583A (en) | 2022-07-22 |
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