Roof, carriage and vehicle

Abstract

The utility model relates to the technical field of railway vehicles, and provides a roof, a carriage and a vehicle, and the roof comprises a top camber beam and a vehicle cover assembly. The top camber beam comprises a first transverse bent plate, a longitudinal bent plate, a second transverse bent plate and a reinforcing bent plate. The first side edge of the first transverse bent plate is fixedly connected with the bottom side edge of the longitudinal bent plate; the side edge of the top of the longitudinal bent plate is fixedly connected with the first side edge of the second transverse bent plate. The second side edge of the second transverse bent plate is fixedly connected with the top side edge of the reinforcing bent plate. The plate face of the reinforcing bent plate is parallel to the plate face of the longitudinal bent plate. The hood assembly is connected to the top camber beam. The section of the top camber beam is arranged to be in the shape, so that the material consumption of the top camber beam can be reduced, the weight of the top camber beam can be reduced, and the weight of the roof can be reduced. In addition, bending deformation of the top camber beam in the vertical direction can be reduced, and therefore the structural stability of the car roof can be enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail vehicles, in particular to a roof, a carriage and a vehicle. BACKGROUND

[0002] In the structure of a rail vehicle, the roof is an important component of the carriage.

[0003] In the prior art, the roof has a large weight, which in turn causes the carriage to have a large weight, thereby increasing the energy consumption of the vehicle during driving and increasing carbon emissions. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a roof, a carriage and a vehicle, the roof has a small weight, so that when the roof is used to manufacture the carriage, the weight of the carriage can be significantly reduced. In this way, the energy consumption of the vehicle during driving can be reduced, and the carbon emissions can be reduced.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] In a first aspect, the present application provides a roof, comprising: a roof bending beam and a roof cover assembly. The roof bending beam comprises a first transverse bending plate, a longitudinal bending plate, a second transverse bending plate and a reinforcing bending plate. The first side edge of the first transverse bending plate is fixedly connected with the bottom side edge of the longitudinal bending plate; the top side edge of the longitudinal bending plate is fixedly connected with the first side edge of the second transverse bending plate; the second side edge of the second transverse bending plate is fixedly connected with the top side edge of the reinforcing bending plate. The plate surface of the reinforcing bending plate is parallel to the plate surface of the longitudinal bending plate. The roof cover assembly is connected to the roof bending beam.

[0007] As an optional implementation, the ratio of the height d1 of the reinforcing bending plate to the height d2 of the longitudinal bending plate is in the range of 0

[0008] As an optional implementation, the roof bending beam is provided with a plurality of spaced-apart weight-reducing holes, a plurality of spaced-apart weight-reducing grooves and / or a plurality of spaced-apart weight-reducing cavities.

[0009] As an optional implementation, the roof cover assembly comprises longitudinal beams and cover plates. The number of roof bending beams is a plurality, and the plurality of roof bending beams are spaced apart along the length direction of the roof; part of the longitudinal beams are located between two adjacent roof bending beams, and the two ends of the longitudinal beams are respectively connected with the plate surfaces of the longitudinal bending plates of the two adjacent roof bending beams. The cover plates are connected to the top surfaces of the second transverse bending plates and the top surfaces of the longitudinal beams.

[0010] As an optional implementation, along the width direction of the roof, the cover plate comprises a first side plate, a middle corrugated plate and a second side plate connected in sequence.

[0011] As an optional implementation, the cross section of the intermediate corrugated plate perpendicular to the longitudinal beam axis direction is in a corrugated shape.

[0012] As an optional implementation, along the width direction of the roof, the width of the first side plate is the same as the width of the second side plate, and the width d3 of the intermediate corrugated plate and the width d4 of the cover plate satisfy the relationship of 3 / 4≤d3 / d4≤1.

[0013] As an optional implementation, the number of the longitudinal beams is two, one of the longitudinal beams is arranged along the joint between the first side plate and the intermediate corrugated plate, and the other longitudinal beam is arranged along the joint between the second side plate and the intermediate corrugated plate.

[0014] In the second aspect, the application provides a vehicle cabin, which comprises the roof of any one of the first aspect and two end walls. Along the length direction of the roof, the two end walls are oppositely arranged, and the two ends of the roof are respectively connected with the top of the two end walls.

[0015] As an optional implementation, the inner side of the top of the end wall is provided with a load-bearing curved member, and the axis of the load-bearing curved member is parallel to the axis of the top curved beam.

[0016] The load-bearing curved member has a curved overhang plate and a curved base plate. The curved overhang plate is perpendicular to the longitudinal curved plate, and the end of the longitudinal beam is connected with the upper surface of the curved overhang plate. The top side of the curved base plate is fixedly connected with the side of the curved overhang plate, and the plate surface of the curved base plate is fixedly connected with the inner side of the top of the end wall.

[0017] As an optional implementation, along the length direction of the roof, the distance between the inner sides of the top of the two end walls is greater than the length of the roof.

[0018] In the third aspect, the application provides a vehicle, which comprises the roof of any one of the first aspect and / or the vehicle cabin of any one of the second aspect.

[0019] Compared with the prior art, the application has at least the following beneficial effects:

[0020] Since the roof comprises a roof bending beam, the roof bending beam comprises a first transverse bending plate, a longitudinal bending plate and a second transverse bending plate. The first side edge of the first transverse bending plate is fixedly connected with the bottom side edge of the longitudinal bending plate; the top side edge of the longitudinal bending plate is fixedly connected with the first side edge of the second transverse bending plate. The first transverse bending plate and the second transverse bending plate are located on both sides of the longitudinal bending plate. In comparison with the scheme of setting the cross section of the roof bending beam as an inverted'several' character, the cross section of the roof bending beam is set as the above shape in the case of keeping the cross section height and width of the roof bending beam unchanged and the length of the roof bending beam unchanged, so that the material consumption of the roof bending beam can be reduced, and then the weight of the roof bending beam can be reduced, and then the weight of the roof can be reduced.

[0021] Since the roof bending beam comprises a reinforcing bending plate, the second side edge of the second transverse bending plate is fixedly connected with the top side edge of the reinforcing bending plate. The plate surface of the reinforcing bending plate is parallel to the plate surface of the longitudinal bending plate. In this way, the bending stiffness of the second transverse bending plate in the vertical direction can be increased, and then the bending deformation of the second transverse bending plate in the vertical direction can be reduced, and then the bending deformation of the roof bending beam in the vertical direction can be reduced, so that the structural stability of the roof can be enhanced.

[0022] In summary, the roof bending beam of the roof is set as the above cross section shape, so that the weight of the roof can be reduced, and the structural stability of the roof can be enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 A structural schematic diagram of a roof provided by an embodiment of the present application is provided.

[0025] Figure 2 A sectional view of a roof bending beam in the embodiment of the present application is provided. Figure 1 A sectional view of a roof bending beam in the embodiment of the present application is provided.

[0026] Figure 3 A sectional view of a roof bending beam in the embodiment of the present application is provided. Figure 1 A front view of a roof bending beam in the embodiment of the present application is provided.

[0027] Figure 4 A front view of a roof bending beam in the embodiment of the present application is provided. Figure 3 A structural schematic diagram of a roof bending beam and a cover plate in the embodiment of the present application is provided.

[0028] Figure 5 A structural schematic diagram of a roof bending beam and a cover plate in the embodiment of the present application is provided.

[0029] Figure 6 A structural schematic diagram of a roof bending beam and a cover plate in the embodiment of the present application is provided.Figure 5 Structure diagram of the load-bearing bending member at the top of the middle end wall;

[0030] Figure 7 For Figure 6 Structure diagram of the three-dimensional middle bending load-bearing member.

[0031] Explanation of reference signs:

[0032] 100-carriage, 120-end wall, 121-load-bearing bending member, 1211-bending cantilever plate, 1212-bending base plate, 110-roof, 111-top bending beam, 1111-first transverse bending plate, 1112-longitudinal bending plate, 1113-second transverse bending plate, 1114-strengthening bending plate, 1115-weight-reducing hole, 112-roof cover assembly, 1121-longitudinal beam, 1122-cover plate, 11221-first side plate, 11222-middle corrugated plate, 11223-second side plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments described below and the features in the embodiments can be combined with each other without conflict.

[0034] In the structure of a rail locomotive, the roof is an important component of the carriage. In the prior art, the roof generally comprises a plurality of top bending beams arranged in sequence along the longitudinal direction of the roof. A plurality of longitudinal beams are arranged between adjacent two top bending beams, and the plurality of longitudinal beams are arranged in sequence along the axis direction of the top bending beam. The two ends of each longitudinal beam are connected with the corresponding top bending beam. A cover plate is covered on the upper surfaces of the top bending beam and the longitudinal beam, which covers the upper surfaces of all the top bending beams and longitudinal beams.

[0035] In the structure of the roof described above, the cross section of the top bending beam is inverted "several" character shape. Specifically, the cross section of the top bending beam is open at the upper end and closed at the lower end. This makes the self weight of the top bending beam larger. Therefore, the weight of the roof is larger, which further leads to the larger weight of the carriage, and increases the energy consumption of the locomotive during driving, thus increasing the carbon emission.

[0036] Based on the above technical problems, the roof provided by the utility model reduces the self weight of the roof bending beam by setting the roof bending beam into a specific shape, thereby reducing the weight of the roof. Specifically, the roof bending beam of the roof comprises a first transverse bending plate, a longitudinal bending plate and a second transverse bending plate. The first side edge of the first transverse bending plate is fixedly connected with the bottom side edge of the longitudinal bending plate; the top side edge of the longitudinal bending plate is fixedly connected with the first side edge of the second transverse bending plate. The first transverse bending plate and the second transverse bending plate are located on both sides of the longitudinal bending plate. Compared with the scheme of setting the cross section of the roof bending beam into an inverted "several" character shape, setting the cross section of the roof bending beam into the above shape can reduce the material consumption of the roof bending beam under the condition that the cross section height and width of the roof bending beam and the length of the roof bending beam are unchanged, thereby reducing the weight of the roof bending beam, and further reducing the weight of the roof.

[0037] The content of the present application will be described in detail below in combination with the drawings, so that those skilled in the art can more clearly and specifically understand the content of the present application.

[0038] The specific structure of the above roof and various possible embodiments will be described in detail below.

[0039] Figure 1 A structural schematic diagram of a roof 110 provided by the embodiment of the present application is shown in the figure, Figure 2 For Figure 1 The cross section of the roof bending beam 111 perpendicular to the axis of the roof bending beam 111 is shown in the figure.

[0040] Referring to Figure 1 And Figure 2 The roof 110 comprises a roof bending beam 111 and a roof cover assembly 112. The roof bending beam 111 comprises a first transverse bending plate 1111, a longitudinal bending plate 1112, a second transverse bending plate 1113 and a reinforcing bending plate 1114. The first side edge of the first transverse bending plate 1111 is fixedly connected with the bottom side edge of the longitudinal bending plate 1112; the top side edge of the longitudinal bending plate 1112 is fixedly connected with the first side edge of the second transverse bending plate 1113; the second side edge of the second transverse bending plate 1113 is fixedly connected with the top side edge of the reinforcing bending plate 1114. The plate surface of the reinforcing bending plate 1114 is parallel to the plate surface of the longitudinal bending plate 1112. The roof cover assembly 112 is connected to the roof bending beam 111.

[0041] In this embodiment, the roof 110 includes a top curved beam 111, which comprises a first transverse curved plate 1111, a longitudinal curved plate 1112, and a second transverse curved plate 1113. The first side of the first transverse curved plate 1111 is fixedly connected to the bottom side of the longitudinal curved plate 1112; the top side of the longitudinal curved plate 1112 is fixedly connected to the first side of the second transverse curved plate 1113. The first transverse curved plate 1111 and the second transverse curved plate 1113 are located on either side of the longitudinal curved plate 1112. Compared to a design where the cross-section of the top curved beam 111 is an inverted "U" shape, this design reduces the material usage of the top curved beam 111 while maintaining its height, width, and length, thereby reducing the weight of the roof 110.

[0042] Since the top bending beam 111 includes a reinforcing bending plate 1114, the second side of the second transverse bending plate 1113 is fixedly connected to the top side of the reinforcing bending plate 1114. The surface of the reinforcing bending plate 1114 is parallel to the surface of the longitudinal bending plate 1112. This increases the bending stiffness of the second transverse bending plate 1113 in the vertical direction, thereby reducing the bending deformation of the second transverse bending plate 1113 in the vertical direction, which in turn reduces the bending deformation of the top bending beam 111 in the vertical direction, thus enhancing the structural stability of the roof 110.

[0043] In summary, by setting the top bending beam 111 of the roof 110 to the above-mentioned cross-sectional shape, the weight of the roof 110 can be reduced and the structural stability of the roof 110 can be enhanced.

[0044] Furthermore, compared to setting the cross-section of the top bending beam 111 to an inverted "V" shape, setting the cross-section of the top bending beam 111 to the aforementioned cross-section can prevent the cover plate 1122 from forming a cavity after connecting with the top bending beam 111, thus facilitating the maintenance of the roof 110.

[0045] It should be noted that the connection method between the first transverse bending plate 1111, the longitudinal bending plate 1112, the second transverse bending plate 1113 and the reinforcing bending plate 1114 of the top bending beam 111 is welding or integral forming, and this application embodiment does not limit this.

[0046] It should also be noted that the dimensions of the first transverse bending plate 1111, the longitudinal bending plate 1112, the second transverse bending plate 1113, and the reinforcing bending plate 1114 of the aforementioned top bending beam 111 are set according to the size of the roof 110.

[0047] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 and Figure 2The ratio of the height d1 of the reinforcing bent plate 1114 to the height d2 of the longitudinal bent plate 1112 is 0 < d1 / d2 ≤ 1 / 6.

[0048] In the roof 110, part of the structure of the roof cover assembly 112 needs to be connected with the plate surface of the longitudinal bent plate 1112 of the roof bent beam 111. In order to meet the above requirements of the connection between the roof cover assembly 112 and the roof bent beam 111, the ratio of the height d1 of the reinforcing bent plate 1114 to the height d2 of the longitudinal bent plate 1112 is 0 < d1 / d2 ≤ 1 / 6 in the direction perpendicular to the axis of the roof bent beam 111. In this way, the height d1 of the reinforcing bent plate 1114 is much smaller than the height d2 of the longitudinal bent plate 1112, and the arrangement of the reinforcing bent plate 1114 will not affect the connection between the roof cover assembly 112 and the roof bent beam 111, so as to improve the production efficiency of the roof 110.

[0049] It should be noted that, referring to Figure 1 and Figure 2 , the plate surface of the first transverse bent plate 1111 and the plate surface of the second transverse bent plate 1113 are both perpendicular to the plate surface of the longitudinal bent plate 1112. In this way, when the roof bent beam 111 is installed in the vehicle cabin 100, the plate surface of the longitudinal bent plate 1112 is ensured to be vertical, and the plate surfaces of the first transverse bent plate 1111 and the second transverse bent plate 1113 are ensured to be horizontal. In this way, the roof bent beam 111 is connected with the roof cover assembly 112 more conveniently while the vertical bending stiffness of the roof bent beam 111 is maximized.

[0050] It should be further noted that the roof bent beam 111 is a one-piece. That is, the first transverse bent plate 1111, the longitudinal bent plate 1112, the second transverse bent plate 1113 and the reinforcing bent plate 1114 of the roof bent beam 111 are fixedly connected as a one-piece. In this way, the roof bent beam 111 does not have a connection seam, and thus the stiffness of the roof bent beam 111 is enhanced, and the deformation of the roof bent beam 111 is reduced when the roof bent beam 111 is subjected to an external force, so as to reduce the deformation of the vehicle cabin 100.

[0051] It should be further noted that the fixed connection between the first transverse bent plate 1111, the longitudinal bent plate 1112, the second transverse bent plate 1113 and the reinforcing bent plate 1114 can be welding or integral casting, which is not limited in the embodiments of the present application.

[0052] As an optional embodiment, in some embodiments, referring to Figure 1 , Figure 2 and Figure 3 , the roof bent beam 111 is provided with a plurality of weight-reducing holes 1115 arranged at intervals. In this way, the weight of the roof bent beam 111 is reduced, and thus the weight of the vehicle cabin 100 is reduced.

[0053] In addition, instead of the plurality of spaced apart weight reduction holes 1115, a plurality of spaced apart weight reduction grooves or a plurality of spaced apart weight reduction cavities can also be used. In this way, the weight of the roof bow beam 111 can be reduced, and thus the weight of the vehicle cabin 100 can be reduced.

[0054] It should be noted that the cross-sectional shape of the weight reduction hole 1115 can be triangular, circular or polygonal, or other shapes, which are not limited in the embodiments of the present application.

[0055] As an optional implementation, in some embodiments, referring to Figure 1 , Figure 2 and Figure 4 , the roof cover assembly 112 includes longitudinal beams 1121 and a cover plate 1122. The number of roof bow beams 111 is multiple, and the multiple roof bow beams 111 are spaced apart along the length direction (X direction in the figure) of the roof. Part of the longitudinal beams 1121 is located between two adjacent roof bow beams 111, and the two ends of the longitudinal beam 1121 are respectively connected to the plate surface of the longitudinal bending plate 1112 of the two adjacent roof bow beams 111. The cover plate 1122 is attached to the top surface of the second transverse bending plate 1113 and the top surface of the longitudinal beam 1121. Figure 1 Since the two ends of the longitudinal beam 1121 are connected to the plate surface of the longitudinal bending plate 1112, the longitudinal beam 1121 and the roof bow beam 111 can form the skeleton of the roof 110. Thus, when the cover plate 1122 is installed, there is a large enough attachment surface, which is beneficial to the connection of the roof 110. Since the cover plate 1122 is attached to the top surface of the second transverse bending plate 1113 and the top surface of the longitudinal beam 1121. In this way, the connection area of the cover plate 1122 and the skeleton is larger, and thus the connection of the cover plate 1122 and the skeleton is more firm.

[0056] In the structure of the roof 110, the external pressure received by the cover plate 1122 can be transmitted to the longitudinal beam 1121, and then transmitted to the roof bow beam 111 by the longitudinal beam 1121.

[0057] It should be noted that the position where the roof bow beam 111 and the longitudinal beam 1121 are connected is not provided with a weight reduction hole 1115, and the arrangement, size and shape of the weight reduction hole 1115 can be adjusted.

[0058] As an optional implementation, in some embodiments, referring to

[0059] , Figure 1 , Figure 2 and Figure 4 , along the width direction (Y direction in the figure) of the roof, the cover plate 1122 includes a first side plate 11221, a middle corrugated plate 11222 and a second side plate 11223 connected in sequence. Figure 1

[0060] ​In the upper surface of the roof 110, the middle part along the width direction of the roof 110 generally bears a greater pressure than the two sides. In order to adapt to this stress feature, the middle part of the roof 110 is provided with the middle corrugated plate 11222, which can increase the vertical bearing capacity of the cover plate 1122, and further increase the vertical bearing capacity of the roof 110.

[0061] As an optional embodiment, in some embodiments, referring to Figure 1 , Figure 2 and Figure 4 , the cross section of the middle corrugated plate 11222 perpendicular to the axis direction of the longitudinal beam 1121 is in a corrugated shape.

[0062] In the structure of the roof 110, the distance between the adjacent roof bending beams 111 is greater than the distance between the adjacent longitudinal beams 1121, so that the longitudinal length of the square formed by the two roof bending beams 111 and the two longitudinal beams 1121 is greater than the transverse length, and the longitudinal direction of the cover plate 1122 is the weak direction. In order to strengthen the weak direction, the cross section of the middle corrugated plate 11222 perpendicular to the axis direction of the longitudinal beam 1121 is in a corrugated shape. In this way, the purpose of strengthening the weak direction can be achieved, and the bending stiffness of the cover plate 1122 can be increased, so that the bearing capacity of the roof 110 can be improved.

[0063] As an optional embodiment, in some embodiments, referring to Figure 1 , Figure 2 and Figure 4 , along the width direction of the roof 110, the width of the first side plate 11221 is the same as the width of the second side plate 11223, and the ratio of the width d3 of the middle corrugated plate 11222 to the width d4 of the cover plate 1122 is in the range of 3 / 4≤d3 / d4≤1.

[0064] Since along the width direction of the roof 110, the width of the first side plate 11221 is the same as the width of the second side plate 11223. In this way, when the roof 110 is installed in the cabin 100, the roof 110 is symmetrical along the central axis of the cabin 100, and the cabin 100 is more beautiful.

[0065] Since the overall shape of the roof 110 is a circular arc surface, when the ratio of the width d3 of the middle corrugated plate 11222 to the width d4 of the cover plate 1122 is in the range of 3 / 4≤d3 / d4≤1, the width of the middle corrugated plate 11222 can be maximized while ensuring that the middle corrugated plate 11222 of the roof 110 cannot be observed from both sides of the cabin 100, and the bending stiffness of the roof 110 can be maximized, so that the bearing capacity of the roof 110 can be maximized.

[0066] As an optional embodiment, in some embodiments, referring to Figure 1, Figure 2 and Figure 4 There are two longitudinal beams 1121. One longitudinal beam 1121 extends along the joint between the first side plate 11221 and the middle corrugated plate 11222, and the other longitudinal beam 1121 extends along the joint between the second side plate 11223 and the middle corrugated plate 11222.

[0067] Compared to setting three or more longitudinal beams 1121 on the roof 110, the number of longitudinal beams 1121 is only two, which can reduce the weight of the roof 110 while ensuring that the rigidity of the roof 110 meets the requirements.

[0068] One longitudinal beam 1121 extends along the joint between the first side plate 11221 and the intermediate corrugated plate 11222, and another longitudinal beam 1121 extends along the joint between the second side plate 11223 and the intermediate corrugated plate 11222. This facilitates the connection between the first side plate 11221, the second side plate 11223, and the intermediate corrugated plate 11222.

[0069] This application also provides a carriage 100, see [link to relevant documentation] Figure 1 , Figure 2 and Figure 5 The carriage 100 includes any of the above-mentioned roof 110 and two end walls 120. Along the length of the roof 110, the two end walls 120 are arranged opposite to each other, and the two ends of the roof 110 are respectively connected to the top of the two end walls 120.

[0070] In this embodiment, the roof 110 includes a top curved beam 111, which comprises a first transverse curved plate 1111, a longitudinal curved plate 1112, and a second transverse curved plate 1113. The first side of the first transverse curved plate 1111 is fixedly connected to the bottom side of the longitudinal curved plate 1112; the top side of the longitudinal curved plate 1112 is fixedly connected to the first side of the second transverse curved plate 1113. The first transverse curved plate 1111 and the second transverse curved plate 1113 are located on either side of the longitudinal curved plate 1112. Compared to setting the cross-section of the top curved beam 111 to an inverted "U" shape, this design reduces the material usage of the top curved beam 111 while maintaining its height, width, and length, thereby reducing the weight of the roof 110 and ultimately the weight of the vehicle body 100.

[0071] The second side edge of the second transverse bent plate 1113 is fixedly connected with the top side edge of the reinforcing bent plate 1114 due to the fact that the roof bent beam 111 comprises the reinforcing bent plate 1114. The plate surface of the reinforcing bent plate 1114 is parallel to the plate surface of the longitudinal bent plate 1112. In this way, the bending stiffness of the second transverse bent plate 1113 in the vertical direction can be increased, and then the bending deformation of the second transverse bent plate 1113 in the vertical direction can be reduced, and then the bending deformation of the roof bent beam 111 in the vertical direction can be reduced, so that the structural stability of the roof 110 can be enhanced, and then the structural stability of the carriage 100 can be enhanced.

[0072] As an optional implementation, in some embodiments, referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 , the inner side surface of the top of the end wall 120 is provided with a bearing bent piece 121; the axis of the bearing bent piece 121 is parallel to the axis of the roof bent beam 111.

[0073] The bearing bent piece 121 has a bent overhanging plate 1211 and a bent base plate 1212. The bent overhanging plate 1211 is perpendicular to the longitudinal bent plate 1112; the end of the longitudinal beam 1121 is connected with the upper surface of the bent overhanging plate 1211. The top side edge of the bent base plate 1212 is fixedly connected with the side edge of the bent overhanging plate 1211; the plate surface of the bent base plate 1212 is fixedly connected with the inner side surface of the top of the end wall 120.

[0074] In the production of the carriage 100, generally, the cover plate 1122 is connected with the longitudinal beam 1121 to form a roof cover assembly 112, then the roof cover assembly 112 is hoisted as a whole, then the roof cover assembly 112 is lowered from top to bottom to the appropriate position between the two end walls 120, and finally the two ends of the longitudinal beam 1121 are respectively welded with the top of the two end walls 120 to realize the connection between the roof cover assembly 112 and the two end walls 120.

[0075] In the embodiment, the inner side surface of the top of the end wall 120 is provided with the bearing bent piece 121; the axis of the bearing bent piece 121 is parallel to the axis of the roof bent beam 111. The bearing bent piece 121 has the bent overhanging plate 1211, and the bent overhanging plate 1211 is perpendicular to the longitudinal bent plate 1112; the end of the longitudinal beam 1121 is connected with the upper surface of the bent overhanging plate 1211. In this way, the roof cover assembly 112 can be directly lowered from top to bottom to the upper surface of the bent overhanging plate 1211 to realize the connection between the roof cover assembly 112 and the top of the end wall 120. In addition, the roof cover assembly 112 will not be blocked by the structure of the carriage 100 in the process of falling, so that the falling process is more smooth, the connection between the roof cover assembly 112 and the end wall 120 is more convenient, and thus the production efficiency of the carriage 100 can be improved.

[0076] Since the bearing bending piece 121 has the bending base plate 1212, the top side of the bending base plate 1212 is fixedly connected with the side of the bending eaves 1211, and the plate surface of the bending base plate 1212 is fixedly connected with the inner side of the top of the end wall 120. In this way, compared with the scheme that the side of the bending eaves 1211 is fixedly connected with the inner side of the top of the end wall 120 directly, the bending base plate 1212 increases the connection area of the bearing bending piece 121 and the inner side of the top of the end wall 120, and thus the bearing bending piece 121 is connected with the inner side of the top of the end wall 120 more firmly, and thus the integrity of the vehicle compartment 100 is enhanced.

[0077] It should be noted that the connection between the roof cover assembly 112 and the top of the end wall 120 is realized by the connection between the longitudinal beam 1121 of the roof cover assembly 112 and the bending eaves 1211. The connection mode between the longitudinal beam 1121 and the bending eaves 1211 can be welding or bolt connection, or other connection modes, which are not limited in the embodiments of the application.

[0078] As an optional embodiment, in some embodiments, referring to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7 , the distance between the inner sides of the tops of the two end walls 120 is greater than the length of the roof 110 in the length direction of the roof 110.

[0079] In this way, in the process of connecting the roof cover assembly 112 and the top of the end wall 120, the roof 110 is allowed to have an error in the length direction of the roof 110 when falling, so that the connection efficiency of the roof 110 and the top of the end wall 120 can be improved, and thus the production efficiency of the vehicle compartment 100 can be improved.

[0080] Specifically, in the process of connecting the roof 110 and the top of the end wall 120, when the roof 110 falls to a certain position on the upper surface of the bending eaves 1211, the roof 110 can be directly connected with the upper surface of the bending eaves 1211 at the position. Or after the roof 110 falls to a certain position on the upper surface of the bending eaves 1211, the position of the roof 110 can be adjusted in the length direction of the roof 110, and then the roof 110 is connected with the upper surface of the bending eaves 1211 at the adjusted position.

[0081] The embodiments of the application also provide a vehicle, referring to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7 , the vehicle comprises any one of the roofs 110.

[0082] In this embodiment, the roof 110 includes a top curved beam 111, which comprises a first transverse curved plate 1111, a longitudinal curved plate 1112, and a second transverse curved plate 1113. The first side of the first transverse curved plate 1111 is fixedly connected to the bottom side of the longitudinal curved plate 1112; the top side of the longitudinal curved plate 1112 is fixedly connected to the first side of the second transverse curved plate 1113. The first transverse curved plate 1111 and the second transverse curved plate 1113 are located on both sides of the longitudinal curved plate 1112. Compared to setting the cross-section of the top bending beam 111 to an inverted "U" shape, while keeping the height, width, and length of the top bending beam 111 unchanged, setting the cross-section of the top bending beam 111 to the above shape can reduce the amount of material used in the top bending beam 111, thereby reducing the weight of the top bending beam 111, and consequently reducing the weight of the roof 110. This reduces the weight of the vehicle, thereby reducing energy consumption during vehicle operation and thus reducing carbon emissions.

[0083] Since the top bending beam 111 includes a reinforcing bending plate 1114, the second side of the second transverse bending plate 1113 is fixedly connected to the top side of the reinforcing bending plate 1114. The surface of the reinforcing bending plate 1114 is parallel to the surface of the longitudinal bending plate 1112. This increases the bending stiffness of the second transverse bending plate 1113 in the vertical direction, thereby reducing the bending deformation of the second transverse bending plate 1113 in the vertical direction, which in turn reduces the bending deformation of the top bending beam 111 in the vertical direction, thus enhancing the structural stability of the roof 110 and consequently improving the structural stability of the vehicle.

[0084] In addition, the vehicle may also include any of the aforementioned types of carriage 100. Since the carriage 100 includes the aforementioned roof 110 and thus also has the aforementioned technical effects, it will not be described in detail here.

[0085] It should be noted that the aforementioned vehicles may be trains or buses, or other types of vehicles, and this application embodiment does not limit them.

[0086] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0087] In general, terminology can be understood at least in part from usage in context. For example, terms, such as "one or more" as used herein, can be taken to describe any feature, structure, or characteristic in the singular or can be taken to describe a combination of features, structures or characteristics in the plural sense. Similarly, terms, such as "a" or "an," as used herein can be taken to convey a singular usage or a plural usage, at least depending on context.

[0088] It will be readily understood that the terms "on," "above," and "over," as used herein, shall not be construed so as to mean "directly on" only unless specifically indicated otherwise. Rather, "on," "above," or "over" shall be interpreted to include not only "on" or "above" or "over" but also "on" or "above" or "over" with intervening features or layers therebetween. Similarly, "under" shall be interpreted to include not only "under" but also "under" with no intervening features or layers therebetween.

[0089] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0090] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions recorded in the above-described embodiments, or equivalent replacements can be made to some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A roof, characterized in that The application relates to a roof structure of a vehicle. The roof structure comprises a top bent beam (111) and a roof cover assembly (112). The top bent beam (111) comprises a first transverse bent plate (1111), a longitudinal bent plate (1112), a second transverse bent plate (1113) and a reinforcing bent plate (1114).

2. The roof according to claim 1, characterized in that The first side edge of the first transverse bent plate (1111) is fixedly connected with the bottom side edge of the longitudinal bent plate (1112).

3. The roof according to claim 1, characterized in that The top side edge of the longitudinal bent plate (1112) is fixedly connected with the first side edge of the second transverse bent plate (1113).

4. Roof according to any one of claims 1-3, characterized in that The second side edge of the second transverse bent plate (1113) is fixedly connected with the top side edge of the reinforcing bent plate (1114). The plate surface of the reinforcing bent plate (1114) is parallel to the plate surface of the longitudinal bent plate (1112). The roof cover assembly (112) is connected with the top bent beam (111).

5. A roof according to claim 4, characterised in that The height d1 of the reinforcing bent plate (1114) and the height d2 of the longitudinal bent plate (1112) satisfy the following relationship: 0 < d1 / d2 <= 1 / 6.

6. A roof according to claim 5, characterised in that The top bent beam (111) is provided with a plurality of weight-reducing holes (1115), a plurality of weight-reducing grooves and / or a plurality of weight-reducing cavities.

7. The roof according to claim 5, characterized in that The roof cover assembly (112) comprises longitudinal beams (1121) and a cover plate (1122).

8. The roof according to claim 5, characterized in that The number of the top bent beams (111) is plural, and the plural top bent beams (111) are arranged at intervals along the length direction of the roof.

9. A vehicle bed, characterized by, Part of the longitudinal beams (1121) are located between two adjacent top bent beams (111), and the two ends of the longitudinal beam (1121) are respectively connected with the plate surfaces of the longitudinal bent plates (1112) of the two adjacent top bent beams (111). The cover plate (1122) is connected with the top surface of the second transverse bent plate (1113) and the top surface of the longitudinal beam (1121). Along the width direction of the roof, the cover plate (1122) comprises a first side plate (11221), an intermediate corrugated plate (11222) and a second side plate (11223) which are sequentially connected. The cross section of the intermediate corrugated plate (11222) perpendicular to the axis direction of the longitudinal beam (1121) is in a corrugated shape. Along the width direction of the roof, the width of the first side plate (11221) is the same as the width of the second side plate (11223), and the width d3 of the intermediate corrugated plate (11222) and the width d4 of the cover plate (1122) satisfy the following relationship: 3 / 4 <= d3 / d4 <= 1. The number of the longitudinal beams (1121) is two, one longitudinal beam (1121) extends along the joint between the first side plate (11221) and the intermediate corrugated plate (11222), and the other longitudinal beam (1121) extends along the joint between the second side plate (11223) and the intermediate corrugated plate (11222). The roof structure comprises the roof and two end walls (120) according to any one of claims 1-8. Along the length direction of the roof, the two end walls (120) are oppositely arranged, and the two ends of the roof are respectively connected with the top portions of the two end walls (120).

10. The vehicle bed of claim 9, wherein, An inner side of a top of the end wall (120) is provided with a load bearing bent piece (121); an axis of the load bearing bent piece (121) is parallel to an axis of the top bent beam (111); The load bearing bent piece (121) has a bent eave (1211) and a bent base plate (1212); the bent eave (1211) is perpendicular to the longitudinal bent plate (1112); an end of a longitudinal beam (1121) is connected to an upper surface of the bent eave (1211); a top side of the bent base plate (1212) is fixedly connected to a side of the bent eave (1211); a plate surface of the bent base plate (1212) is fixedly connected to the inner side of the top of the end wall (120).

11. The vehicle bed of claim 10, wherein, Along a length direction of the roof, a distance between the two inner sides of the top of the end wall (120) is greater than a length of the roof.

12. A vehicle characterized by comprising: A vehicle cabin comprising the roof of any one of claims 1-8 and / or the vehicle cabin of any one of claims 9-11.

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