Roof structure, vehicle body and railway vehicle

Abstract

The invention relates to the field of railway vehicles, and provides a vehicle roof structure, a vehicle body and a railway vehicle. The two sides, extending in the longitudinal direction of the vehicle body, of the top plate are connected with the camber beams in a welded mode; the mounting beam is arranged on the side, opposite to the bent beam, of the top plate and suitable for being connected with roof equipment. According to the mounting beam, mounting bases of all devices are integrated in a unified mode, the number of welding bases is reduced, meanwhile, welding defects caused by large welding amount and large deformation are avoided, the overall structure quality and stability of a car roof and the bearing capacity of the car roof are improved, the utilization efficiency of the car roof space is improved, the mounting process of the car roof devices is simplified, and the cost is reduced. And the installation time and cost are reduced.

Description

Technical Field

[0001] The invention relates to the field of rail vehicles and provides a roof structure, a vehicle body and a rail vehicle. Background Art

[0002] Trams are mainly used for road transportation, and the line operation environment is different from that of EMUs and subways. Existing trams mostly use dedicated high-voltage power supply lines, with few roof devices and flat roof structures, which are convenient for installing equipment. However, for trams powered by hydrogen fuel cells, the roof devices are numerous and heavy, with dense equipment layout, and the roofs mostly use arc-top structures. When a single device is installed, 4 mounting seats are mostly used, while heavy equipment mostly uses 6 or 8 mounting seats. Therefore, when there are many roof devices, the arc-top roof structure will have many and complex mounting seats, large welding volume, large welding deformation, and easy welding defects. Summary of the invention

[0003] The embodiments of the present invention provide a roof structure, a vehicle body and a rail vehicle to solve one of the defects in the related art. The mounting beam integrates the mounting seats of various devices, reduces the number of welded seats, and avoids welding defects caused by large welding volume and large deformation. It not only improves the overall structural quality and stability of the roof and the load-bearing capacity of the roof, but also improves the utilization efficiency of the roof space, simplifies the installation process of the roof equipment, and reduces the installation time and cost.

[0004] The roof structure provided by the embodiment of the present invention includes: curved beam; A top plate, the top plate is located on a side of the curved beam facing away from the interior of the vehicle body, and two sides of the top plate extending in the longitudinal direction of the vehicle body are welded to the curved beam; A mounting beam is arranged on a side of the top plate facing away from the curved beam, and the mounting beam is suitable for connecting with a roof device.

[0005] According to one embodiment of the present invention, the top plate comprises: A raised portion, the raised portion protrudes in a direction away from the curved beam, and the raised portion extends along the longitudinal direction of the vehicle body; A straight portion extends along the longitudinal direction of the vehicle body, and two adjacent straight portions are transitionally connected via the raised portion.

[0006] According to one embodiment of the present invention,

[0007] The curved beam forms bending portions on both sides extending in the longitudinal direction of the vehicle body; Each of the bending portions comprises a first bending section and a second bending section; The two first bending sections both extend in the direction of the top plate; The second bending section is connected to the end of the first bending section, and the two second bending sections extend relatively close to each other along the transverse direction of the vehicle body; The top plate is connected to the second bending section.

[0008] According to one embodiment of the present invention, it also includes: Two side beams, the two side beams are respectively arranged on both sides of the curved beam along the transverse direction of the vehicle body; The middle portion of the side beam abuts against the first bending section, and the side portion of the side beam is inserted between the second bending section and the top plate.

[0009] According to an embodiment of the present invention, the top surface of the mounting beam is a plane.

[0010] According to an embodiment of the present invention, the mounting beam and the top plate surround and form a sealed cavity, and the cross-sectional shape of the sealed cavity along the transverse direction is a closed rectangle.

[0011] According to one embodiment of the present invention, it also includes: The frame body, the top plate is provided with an opening corresponding to the air conditioning vent; The frame includes: a connecting portion and an edge portion; The connecting portion is welded to the top plate; The edge portion is arranged vertically around the outside of the opening, and the bottom end of the edge portion is connected to the connecting portion; A sealing ring is arranged at the top end of the edge portion.

[0012] An embodiment of the present invention further provides a vehicle body, comprising the roof structure as described above.

[0013] According to one embodiment of the present invention, it includes: A side wall edge beam, wherein a slide groove is provided at the top end of the side wall edge beam; Two side beams, respectively arranged on both sides of the curved beam along the transverse direction of the vehicle body; Wherein, the side beam cooperates with the slide groove, and the side beam is suitable for sliding on the slide groove along the longitudinal direction of the vehicle body and the vertical direction of the vehicle body.

[0014] According to an embodiment of the present invention, the side beam and the slide groove surround and form a cavity, and the cross-sectional shape of the cavity along the transverse direction is a closed rectangle.

[0015] An embodiment of the present invention further provides a rail vehicle, comprising the roof structure as described above, or the vehicle body as described above.

[0016] The roof structure provided by the present invention has a length direction of the roof structure that is the longitudinal direction of the vehicle body, a width direction of the roof structure that is the transverse direction of the vehicle body, a main body of the roof structure mainly consisting of a bent beam, a top plate and a mounting beam, the bent beam and the top plate being stacked in a vertical direction, the bent beam being located below the top plate, and the bent beam and the top plate being connected at a side extending in the longitudinal direction of the vehicle body, the upper surface of the top plate being the side facing away from the bent beam, and the lower surface of the top plate being the side facing the bent beam, the mounting beam being arranged on the upper surface of the top plate, and the mounting beam being capable of providing mounting support for the roof equipment.

[0017] The overall roof structure is an upward convex arc structure with high middle and low sides in the horizontal direction. It has strong bearing capacity and can carry densely arranged heavy equipment. In addition, the roof has a large range and can provide sufficient installation space for the equipment. The curved beam provides basic support for the roof. The curved beam and the roof can be made of stainless steel, which has high structural strength and good corrosion resistance. The welding connection between the roof and the curved beam enhances the overall rigidity of the roof structure, replaces the existing roof composite roof bonding structure, improves the stability and safety of the roof, and thus improves the reliability of the vehicle. Move the equipment under the vehicle to the roof for installation, set the corresponding mounting beam on the upper surface of the roof, and the roof equipment can be connected to the mounting beam through fasteners, which optimizes the equipment installation process and provides sufficient support for the equipment.

[0018] In the prior art, four mounting seats are usually used for the installation of a single device, and six or eight mounting seats are usually used for heavy equipment. When there are many devices on the roof, the number of mounting seats is large and complex, the amount of welding is large, the welding deformation is large, and welding defects are easy to occur. The mounting beam can meet the installation requirements of most equipment, especially heavy equipment. The mounting beam integrates the mounting seats of various devices, reduces the number of welding seats, and avoids welding defects caused by large welding amount and large deformation. It not only improves the overall structural quality and stability of the roof and the load-bearing capacity of the roof, but also improves the utilization efficiency of the roof space, simplifies the installation process of the roof equipment, and reduces the installation time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a structural schematic diagram of a roof structure provided by an embodiment of the present invention; Figure 2 yes Figure 1 A magnified view of the local area A; Figure 3 yes Figure 1 A partial enlarged view of B; Figure 4 is a schematic structural diagram of a frame and a sealing ring of a roof structure provided by an embodiment of the present invention; Figure 5 is a structural schematic diagram of a vehicle body provided by an embodiment of the present invention; Figure 6 yes Figure 5 Enlarged view of local C.

[0021] Reference numerals: 100, curved beam; 110, first curved section; 120, second curved section

[0022] 200, top plate; 210, raised portion; 220, straight portion; 300, mounting beam; 310, sealing cavity; 400, side beam; 410, middle part; 420, side part; 500, frame; 510, connection portion; 520, edge portion; 600, sealing ring; 700, side wall edge beam; 710, slideway; 720, cavity; 800. Roof structure. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In addition, in the description of the embodiments of the present invention, unless otherwise specified, when "multiple", "multiple roots" or "multiple groups" appear, it means two or more, and "several", "several roots" or "several groups" means one or more.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the roof structure 800 provided by the embodiment of the present invention includes a curved beam 100, a top plate 200 and a mounting beam 300; the top plate 200 is located on the side of the curved beam 100 facing away from the interior of the vehicle body, and the two sides of the top plate 200 extending along the longitudinal direction of the vehicle body are welded to the curved beam 100; the mounting beam 300 is arranged on the side of the top plate 200 facing away from the curved beam 100, and the mounting beam 300 is suitable for connecting with the roof equipment.

[0030] The roof structure 800 of the embodiment of the present invention has a length direction of the roof structure 800 that is a longitudinal direction of the vehicle body, and a width direction of the roof structure 800 that is a transverse direction of the vehicle body. The main body of the roof structure 800 is mainly composed of a bent beam 100, a top plate 200 and a mounting beam 300. The bent beam 100 and the top plate 200 are stacked in a vertical direction, the bent beam 100 is located below the top plate 200, and the bent beam 100 and the top plate 200 are connected at the side extending in the longitudinal direction of the vehicle body. The upper surface of the top plate 200 is the side facing away from the bent beam 100, and the lower surface of the top plate 200 is the side facing the bent beam 100. The mounting beam 300 is arranged on the upper surface of the top plate 200, and the mounting beam 300 can provide mounting support for the roof equipment.

[0031] The roof structure 800 is an upward convex arc structure that is high in the middle and low on both sides along the horizontal direction. It has a strong bearing capacity and can bear densely arranged heavy equipment. In addition, the top plate 200 has a large range and can provide sufficient installation space for the equipment. The curved beam 100 provides basic support for the roof. The curved beam 100 and the top plate 200 can be made of stainless steel, which has high structural strength and good corrosion resistance. The welding connection between the top plate 200 and the curved beam 100 enhances the overall rigidity of the roof structure 800, replaces the existing roof composite roof plate 200 bonding structure, improves the stability and safety of the roof, and thus improves the reliability of the vehicle. The equipment under the vehicle is moved to the roof for installation, and a corresponding mounting beam 300 is set on the upper surface of the top plate 200. The roof equipment can be connected to the mounting beam 300 through fasteners, which optimizes the equipment installation process and can provide sufficient support for the equipment.

[0032] In the prior art, four mounting seats are usually used for the installation of a single device, and six or eight mounting seats are usually used for heavy equipment. When there are many devices on the roof, the number of mounting seats is large and complicated, the amount of welding is large, the welding deformation is large, and welding defects are easily generated. The mounting beam 300 can meet the installation requirements of most equipment, especially heavy equipment. The mounting beam 300 integrates the mounting seats of various devices, reduces the number of welding seats, and avoids welding defects caused by large welding amount and large deformation. It not only improves the overall structural quality and stability of the roof and the load-bearing capacity of the roof, but also improves the utilization efficiency of the roof space, simplifies the installation process of the roof equipment, and reduces the installation time and cost.

[0033] In this embodiment, the mounting beam 300 is connected to the top plate 200 by spot welding, and the connection method is reliable, the welding amount is small, and the welding deformation is small.

[0034] According to one embodiment of the present invention, the top plate 200 includes a raised portion 210 and a straight portion 220, wherein the raised portion 210 protrudes in a direction away from the curved beam 100, and extends along the longitudinal direction of the vehicle body; the straight portion 220 extends along the longitudinal direction of the vehicle body, and two adjacent straight portions 220 are transitionally connected via the raised portion 210.

[0035] In this embodiment, the top plate 200 is mainly composed of a straight portion 220 and a raised portion 210. The straight portion 220 and the raised portion 210 are alternately arranged in the transverse direction of the vehicle body, and the straight portion 220 and the raised portion 210 are extended in the longitudinal direction of the vehicle body. The side edges between two adjacent straight portions 220 are transitionally connected by the side edges of the raised portion 210, and the raised portion 210 is raised upward, so that the entire top plate 200 forms a corrugated top plate 200 structure.

[0036] The raised portion 210 provides additional structural strength, and the straight portion 220 provides a flat surface for equipment installation, so that the top plate 200 has a good appearance while maintaining strength. The design of the corrugated top plate 200 not only increases the rigidity of the top plate 200, but also reduces the amount of material used, achieving a lightweight design. At the same time, the straight portion 220 provides convenience for equipment installation and improves installation efficiency.

[0037] In this embodiment, the corrugated top plate 200 can be made of stainless steel. To match the convex arc design of the curved beam 100, the top plate 200 can also adopt an R7000 arc shape, which has a good appearance. Moreover, resistance seam welding is used between adjacent top plates 200, which has small welding deformation and good sealing effect.

[0038] According to one embodiment of the present invention, the bending beam 100 forms bending portions on both sides extending along the longitudinal direction of the vehicle body, each bending portion includes a first bending section 110 and a second bending section 120, the two first bending sections 110 extend in the direction of the top plate 200, the second bending section 120 is connected to the end of the first bending section 110, and the two second bending sections 120 extend relatively close to each other along the transverse direction of the vehicle body, and the top plate 200 is connected to the second bending section 120.

[0039] In this embodiment, the curved beam 100 forms bending portions on both sides in the transverse direction of the vehicle body, that is, the curved beam 100 is connected to the top plate 200 through the bending portions, and the bending portions are composed of a first bending section 110 and a second bending section 120, that is, the side of the curved beam 100 is first bent upward to form the first bending section 110, and the end of the first bending section 110 is then bent inward to form the second bending section 120, and the second bending sections 120 on both sides are arranged opposite to each other, and the edge of the top plate 200 can cover the second bending section 120. Therefore, under the action of the bending portion, it is equivalent to that the first bending section 110 is located between the middle body of the curved beam 100 and the top plate 200, and has a certain distance, forming a roof structure 800 with a certain thickness, and the second bending section 120 provides a connection range for the welding connection between the top plate 200 and the curved beam 100.

[0040] The bent portion of the curved beam 100 makes the connection between the top plate 200 and the curved beam 100 more secure, and the combined structure of the first curved section 110 and the second curved section 120 enhances the supporting force of the curved beam 100 and provides more connection points, making the welding between the top plate 200 and the curved beam 100 more reliable. While improving the overall strength of the roof structure 800, the connection stability between the top plate 200 and the curved beam 100 is also enhanced, the welding deformation is reduced, and the service life of the roof is increased.

[0041] According to one embodiment of the present invention, the roof structure 800 also includes two side beams 400, which are respectively arranged on both sides of the curved beam 100 along the transverse direction of the vehicle body, the middle portion 410 of the side beam 400 abuts against the first bending section 110, and the side portion 420 of the side beam 400 is inserted between the second bending section 120 and the top plate 200.

[0042] In this embodiment, the roof structure 800 is composed of a curved beam 100, a top plate 200 and two side beams 400. The side beams 400 form the two sides of the roof structure 800 in the lateral direction. The side beams 400 are cavity-shaped profiles as a whole. The middle portion 410 of the side beam 400 can be surrounded by a plate to form a cavity with a certain curvature. The side portions 420 of the side beam 400 are located on both sides of the middle portion 410, both of which are positions where the edges of the plate are extended and connected. The two side portions 420 of the side beam 400 are arranged in sequence along the vertical direction of the vehicle body.

[0043] The vertical direction of the vehicle body is the height direction of the roof structure 800. After the side beam 400 is connected to the curved beam 100 and the top plate 200, the side portion 420 located above is inserted into the gap between the top plate 200 and the second bending section 120 and can be connected by welding. The plate material of the middle portion 410 forming the cavity can be against the surface of the first bending section 110, thereby realizing the structural positioning and support of the installation of the side beam 400, and at the same time realizing a tighter overall structural connection of the top plate 200, the curved beam 100 and the side beam 400, further improving the firmness and structural strength of the connection structure, which is beneficial to the rigidity, compactness and integration of the roof structure 800.

[0044] In this embodiment, the side beam 400 includes an inner plate and an outer plate, the inner plate is a plurality of straight bent plates, the outer plate is an arc-shaped bent plate, the two ends of the inner plate are connected to the two ends of the outer plate as the side portion 420 of the side beam 400, the middle position of the inner plate is a multi-section bend, the middle position of the outer plate is an arc-shaped bend, the multi-section bend and the arc-shaped bend together as the middle portion 410 of the side beam 400 enclose a cavity, and a section of the inner plate located at the upper part is bent against the first bent section 110.

[0045] The second bent section 120 is welded to the top plate 200 only at the extended end position, and a downward depression is formed at the extended starting position of the second bent plate, which can accommodate the end of the inner plate in the side portion 420 of the side beam 400, and a gap is formed between the extended middle position of the second bent plate and the edge of the top plate 200, and the end of the outer plate in the side portion 420 of the side beam 400 is inserted in the gap, thereby ensuring the connection effect between the side beam 400 and the top plate 200 and the bent beam 100, and also ensuring the smooth appearance of the roof structure 800.

[0046] According to one embodiment of the present invention, the top surface of the mounting beam 300 is a plane. In this embodiment, the upper surface of the mounting beam 300 is a device mounting surface, and the device mounting surface is designed to be a horizontal surface, which provides a flat mounting surface for the installation of the roof device, making the device installation more convenient and reducing the time for adjusting and correcting the device during the installation process. The horizontal top surface of the mounting beam 300 not only improves the accuracy of the device installation, but also simplifies the installation process and reduces the installation cost. At the same time, the plane design also facilitates the maintenance and replacement of the device and improves the operability of the roof device.

[0047] According to an embodiment of the present invention, the mounting beam 300 and the top plate 200 surround and form a sealed cavity 310, and the cross-sectional shape of the sealed cavity 310 along the transverse direction is a closed rectangle. In this embodiment, the mounting beams 300 are arranged on both sides of the top plate 200 close to the vehicle body in the transverse direction, and the mounting beams 300 extend along the longitudinal direction of the vehicle body. Each mounting beam 300 is an "X"-shaped mounting beam 300, and the opening of the mounting beam 300 is connected to the top plate 200, so that a sealed cavity 310 is enclosed between the top plate 200 and the "X"-shaped mounting beam 300.

[0048] The cross section of the sealed cavity 310 is perpendicular to the longitudinal section of the roof structure 800. The mounting beam 300 and the corrugated roof plate 200 form a closed rectangular mouth-shaped sealed cavity 310, which can provide sufficient support strength for the equipment. When the equipment is heavy, the mouth-shaped sealed cavity 310 of the mounting beam 300 can be partially reinforced by spot welding a U-shaped plate to ensure its own structural strength.

[0049] The sealed cavity 310 formed between the mounting beam 300 and the top plate 200 not only provides an installation space for the equipment, but also plays a sealing role to prevent moisture and dust from entering the vehicle. The closed rectangular sealed cavity 310 design makes the sealing effect more reliable, and also provides convenience for the installation and removal of the equipment. The design of the sealed cavity 310 not only improves the waterproof and dustproof performance of the roof, but also enhances the sealing of the roof and extends the service life of the roof. At the same time, the closed rectangular sealed cavity 310 design makes the equipment installation more convenient and improves the installation efficiency.

[0050] like Figure 4As shown, according to one embodiment of the present invention, the roof structure 800 also includes a frame 500 and a sealing ring 600, the top plate 200 is provided with an opening corresponding to the air-conditioning vent, the frame 500 includes a connecting portion 510 and an edge portion 520, the connecting portion 510 is welded to the top plate 200, the edge portion 520 is vertically arranged around the outside of the opening, and the bottom end of the edge portion 520 is connected to the connecting portion 510; the sealing ring 600 is arranged at the top end of the edge portion 520.

[0051] In this embodiment, the top plate 200 is provided with an opening, and the opening is connected to the air conditioning vent provided on the roof, and a mounting component is provided around the opening to realize the installation of the air conditioning on the roof. The mounting component is mainly composed of a frame 500 and a sealing ring 600, and the frame 500 is composed of a connecting portion 510 and an edge portion 520. The connecting portion 510 can be connected to the upper surface of the top plate 200 by laser sealing welding, thereby reducing the amount of sealant used, maintaining the sealing effect of the frame 500 connected to the top plate 200 at the opening, and improving the sealing performance of the roof structure 800.

[0052] The edge portion 520 extends upward from the surface of the top plate 200, that is, the lower end of the edge portion 520 is connected to the connecting portion 510, and a sealing ring 600 is arranged at the upper end of the edge portion 520. The sealing ring 600 ensures the sealing effect between the edge portion 520 and the air conditioner installation position, further improving the sealing of the roof air conditioner installation.

[0053] In this embodiment, the sealing ring 600 can be a sealing strip, which is used for sealing the frame 500 and the air conditioner. The frame 500 is a circular frame 500, which surrounds the outside of the opening, the connecting portion 510 is horizontally arranged, and the edge portion 520 is vertically arranged, which can form a sealing frame with an L-shaped cross-section. The connecting portion 510 and the top plate 200 are connected by laser welding, which has a small welding amount, small welding deformation, and high appearance quality, thereby improving the aesthetics of the roof, reducing the amount of sealant used, improving the sealing performance, and facilitating the installation and maintenance of the air conditioning equipment, thereby improving the overall reliability.

[0054] The vehicle body provided by the present invention is described below. The vehicle body described below and the roof structure 800 described above can refer to each other.

[0055] like Figure 5 and Figure 6 As shown, an embodiment of the present invention further provides a vehicle body, including a roof structure as in the above embodiment.

[0056] According to one embodiment of the present invention, the vehicle body includes a side wall beam 700 and two side beams 400, and the two side beams 400 are respectively arranged on both sides of the curved beam 100 along the transverse direction of the vehicle body; a slide groove 710 is provided at the top end of the side wall beam 700; the side beam 400 cooperates with the slide groove 710, and the side beam 400 is suitable for sliding on the slide groove 710 along the longitudinal direction and the vertical direction of the vehicle body.

[0057] In the vehicle body of the embodiment of the present invention, the side wall side beams 700 are installed on both sides of the roof structure 800 along the transverse direction of the vehicle body, that is, the side wall side beams 700 are connected to the side beams 400 of the roof structure 800. The side beams 400 of the roof structure 800 not only improve the transverse stability of the roof structure 800, but also provide an additional support point for the roof on the side wall side beams 700, thereby enhancing the compressive resistance of the roof structure 800 and enabling it to bear a greater weight. A slide groove 710 is formed at the top of the side beam 400, and the slide groove 710 extends along the longitudinal direction of the vehicle body. The middle part 410 of the side beam 400 cooperates with the slide groove 710 and can slide along the slide groove 710. During the process of structural installation of the roof structure 800 and the side wall side beam 700, the slide groove 710 can be used to achieve sliding connection with the side beam 400, thereby optimizing the vehicle body assembly process and solving the problem of difficult connection and positioning between the roof structure 800 and the side wall side beam 700. The middle portion 410 of the side beam 400 can slide vertically and longitudinally on the slide groove 710, so that the roof structure 800 and the side wall beam 700 can be adjusted vertically and longitudinally when the vehicle body is assembled, which greatly facilitates the assembly of various parts of the vehicle body.

[0058] According to one embodiment of the present invention, the side beam 400 and the chute 710 surround and form a cavity 720, and the cross-sectional shape of the cavity 720 along the transverse direction is a closed rectangle. In this embodiment, the middle portion 410 of the side beam 400 is not completely embedded in the chute 710 of the side wall beam 700, and there is a certain distance between the side beam 400 and the side wall beam 700, so the lower side portion 420 and the middle portion 410 of the side beam 400 and the chute 710 of the side wall beam 700 are jointly surrounded to form the cavity 720, and the cross-sectional shape of the cavity 720 is a cross-sectional shape perpendicular to the longitudinal direction of the vehicle body, and the closed rectangular cavity 720 can further improve the structural strength of the connection position between the side beam 400 and the side wall beam 700, and is more conducive to the load transfer of the vehicle body from the roof structure 800 to the side wall beam 700.

[0059] The cavity 720 between the side beam 400 and the slide groove 710 is designed as a closed rectangle, which not only enhances the connection strength between the side beam 400 and the slide groove 710, but also provides an additional sealed space for the vehicle body to prevent moisture and dust from entering the vehicle. The design of the closed rectangular mouth-shaped cavity 720 not only improves the sealing performance of the vehicle body, but also enhances the structural strength of the vehicle body and prolongs the service life of the vehicle body. At the same time, this design also contributes to the beauty of the vehicle body and improves the overall visual effect.

[0060] In this embodiment, an inward recess is provided at the upper end of the side wall beam 700 at the position of the side beam side wall, and the recess can accommodate the end of the inner plate in the side portion 420 of the side beam 400. A cavity 720 is formed by a certain distance between a bend below the inner plate and the recess.

[0061] The rail vehicle provided by the present invention is described below. The rail vehicle described below and the vehicle body described above can be referred to in correspondence with each other.

[0062] The embodiments of the present invention further provide a rail vehicle, such as the roof structure of the above embodiment, or the vehicle body of the above embodiment.

[0063] The rail vehicle of the embodiment of the present invention may be a tram. The high-strength curved roof structure 800 used in the vehicle body facilitates the overall assembly of the rail vehicle, which not only improves the overall performance of the rail vehicle, but also simplifies the manufacturing and maintenance process of the rail vehicle. The rail vehicle has higher reliability and safety, while improving the comfort and aesthetics of the rail vehicle. In addition, the optimized design of the vehicle body structure also helps to reduce the operating cost of the rail vehicle and improve the market competitiveness of the rail vehicle.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A roof structure, characterized in that: include: curved beam (100); A top plate (200), the top plate (200) being located on a side of the curved beam (100) facing away from the interior of the vehicle body, and two sides of the top plate (200) extending in the longitudinal direction of the vehicle body being welded to the curved beam (100); A mounting beam (300) is provided on a side of the top plate (200) facing away from the curved beam (100), and the mounting beam (300) is suitable for being connected to a vehicle roof device.

2. The roof structure according to claim 1, characterized in that: The top plate (200) comprises: a raised portion (210), the raised portion (210) protruding in a direction away from the curved beam (100), the raised portion (210) extending along the longitudinal direction of the vehicle body; A straight portion (220), the straight portion (220) extending along the longitudinal direction of the vehicle body, and two adjacent straight portions (220) being transitionally connected via the raised portion (210).

3. The roof structure according to claim 1, characterized in that: The curved beam (100) has curved portions formed on both sides extending in the longitudinal direction of the vehicle body; Each of the bent portions comprises a first bent section (110) and a second bent section (120); The two first bending sections (110) both extend in the direction of the top plate (200); The second bending section (120) is connected to the end of the first bending section (110), and the two second bending sections (120) extend relatively close to each other along the transverse direction of the vehicle body; The top plate (200) is connected to the second bending section (120).

4. The roof structure according to claim 3, characterized in that: Also includes: Two side beams (400), the two side beams (400) being respectively arranged on two sides of the curved beam (100) along the transverse direction of the vehicle body; The middle portion (410) of the side beam (400) abuts against the first bending section (110), and the side portion (420) of the side beam (400) is inserted between the second bending section (120) and the top plate (200).

5. The roof structure according to claim 1, characterized in that: The top surface of the mounting beam (300) is a plane.

6. The roof structure according to claim 1, characterized in that: The mounting beam (300) and the top plate (200) surround and form a sealed cavity (310); the cross-sectional shape of the sealed cavity (310) along the transverse direction is a closed rectangle.

7. The roof structure according to any one of claims 1 to 6, characterized in that: Also includes: The frame (500) is provided with an opening corresponding to the air conditioning vent; The frame (500) comprises: a connecting portion (510) and an edge portion (520); The connecting portion (510) is welded to the top plate (200); The edge portion (520) is arranged vertically around the outside of the opening, and the bottom end of the edge portion (520) is connected to the connecting portion (510); The sealing ring (600) is arranged at the top end of the edge portion (520).

8. A vehicle body, characterized in that: The vehicle roof structure comprises the roof structure described in any one of claims 1 to 7.

9. The vehicle body according to claim 8, characterized in that: include: A side wall edge beam (700), wherein a top end of the side wall edge beam (700) is provided with a slide groove (710); Two side beams (400) are respectively arranged on two sides of the curved beam (100) along the transverse direction of the vehicle body; The side beam (400) cooperates with the slide groove (710), and the side beam (400) is suitable for sliding on the slide groove (710) along the longitudinal direction of the vehicle body and the vertical direction of the vehicle body.

10. The vehicle body according to claim 9, characterized in that: The side beam (400) and the slide groove (710) surround and form a cavity (720); the cross-sectional shape of the cavity (720) along the transverse direction is a closed rectangle.

11. A rail vehicle, characterized in that: It comprises the roof structure as described in any one of claims 1 to 7 above, or the vehicle body as described in any one of claims 8 to 10 above.

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