Railway vehicle body end wall structure and railway vehicle

Abstract

The application discloses a rail vehicle body end wall structure and a rail vehicle, and relates to the technical field of vehicle engineering. In the rail vehicle body end wall structure, the top of two first end wall plate profiles is fixed to the two ends of a first door upper cross beam respectively to form an inner frame structure of a door type, the inner frame structure encloses an end wall door area, and the bottom of the first end wall plate profile is fixed to the top of a door sill. On each first end wall plate profile, the end part close to the first door upper cross beam is turned towards the inner side in the longitudinal direction to form a first end wall C-shaped plate, a plurality of vertical ribs are arranged on the inner end surface of the first end wall plate profile in the longitudinal direction in sequence along the transverse direction, a plurality of reinforcing plates are arranged in the up-down direction in sequence at intervals, and the two ends of the reinforcing plate are welded to the free end of the first end wall C-shaped plate and the closest vertical rib respectively. The main body of an end door stand and the first door upper cross beam are integrated and combined on the same profile, each first end wall C-shaped plate is reinforced through the reinforcing plate arranged respectively, the welding amount can be reduced, and the machining difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle engineering technology, and in particular to a rail vehicle body end wall structure and a rail vehicle. Background Technology

[0002] The main components of a rail vehicle body include the driver's cab (in the lead car and tail car), underframe, roof, side walls, end walls, and various accessories. The end walls are typically located between two cars. The end walls connect to the side walls of the car body on both sides, connect to the roof at their top outer edge, and connect to the underframe at their bottom. Rail vehicle body structures can be categorized by material, including carbon steel, stainless steel, aluminum alloy, and carbon fiber.

[0003] The end wall structure includes an end wall panel and an end door column located in the middle of the end wall panel. The two end door columns form the end wall door area of ​​the end wall structure. Horizontal and vertical beams are installed on the outer surface of the end wall panel to improve its rigidity. The end door column is a one-piece profile, and its entire vertical edge is welded to the edge of the end wall panel. The amount of welding is large, which increases the processing difficulty.

[0004] Therefore, how to reduce the amount of welding and lower the processing difficulty is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a rail vehicle body end wall structure and rail vehicle, which can reduce the amount of welding and reduce the processing difficulty.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rail vehicle body end wall structure includes a threshold, a first door upper beam, and a first end wall panel profile; the top sides of the two first end wall panel profiles that are close to each other are respectively fixed to the two ends of the first door upper beam to form an inner frame structure of the door, the inner frame structure enclosing the end wall door area, and the bottom surface of the first end wall panel profile is fixed to the top surface of the threshold.

[0008] On each of the first end wall panel profiles, the end closest to the first door upper beam is flipped inward in the longitudinal direction to form a first end wall C-shaped panel. Multiple vertical ribs are arranged in the transverse direction on the inner end face of the first end wall panel profile in the longitudinal direction, and multiple supplementary plates are arranged at intervals in the vertical direction. The two ends of the supplementary plates are respectively welded to the free end of the first end wall C-shaped panel and the nearest vertical rib.

[0009] Preferably, it also includes a downward-opening door-shaped end wall perimeter, the end wall perimeter including an end top beam, two end corner posts and two arc-shaped top curved beams extending obliquely downward; the two ends of the end top beam are respectively fixedly connected to the two top curved beams in the horizontal direction, and the bottom ends of each top curved beam are respectively fixedly connected to the two end corner posts; the inner frame structure is fixed to the inner side of the end wall perimeter; the top curved beam includes an opening profile made of multiple arc-shaped aluminum plates welded together.

[0010] Preferably, both the top beam and the corner column include profiles with built-in diagonal ribs.

[0011] Preferably, on the same side of the end wall door area in the lateral direction, a second end wall panel profile is fixedly provided between the first end wall panel profile and the end corner post, and the first end wall panel profile and the end corner post are connected to different positions of the second end wall panel profile in the longitudinal direction.

[0012] Preferably, the second end wall panel profile includes a second end wall C-shaped plate facing the opening of the corresponding end corner post, the end corner post is fixed to one side edge of the opening of the second end wall C-shaped plate, and one end of the first end wall panel profile is fixed to the middle of the surface of the second end wall C-shaped plate that is laterally away from its opening.

[0013] Preferably, the corner post is welded to the corresponding second end wall C-shaped plate by multiple side aluminum plates arranged sequentially in the vertical direction.

[0014] Preferably, the first end wall panel profile and the second end wall panel profile are made of a single layer of aluminum plate.

[0015] Preferably, it also includes a second upper crossbeam, wherein the top surfaces of the two first end wall panel profiles, the top surfaces of the two second end wall panel profiles, and the top surface of the first upper crossbeam are all fixed to the bottom surface of the second upper crossbeam, and the top surface of the second upper crossbeam is fixed to the top lower surface of the periphery of the end wall; wherein the second upper crossbeam includes a second crossbeam C-shaped plate with the opening facing upward, the first upper crossbeam includes a first crossbeam C-shaped plate with the opening facing upward, and the top end of the outer end plate of the first crossbeam C-shaped plate in the longitudinal direction is fixed to the bottom end of the second crossbeam C-shaped plate.

[0016] Preferably, an upper skin plate covers the outer end face of the top beam in the longitudinal direction and the outer end face of the upper end of the second door beam in the longitudinal direction; a side skin plate covers the outer end face of the corner post in the longitudinal direction and the outer end face of the second end wall panel profile in the longitudinal direction, which are located on the same side of the end wall door area in the transverse direction.

[0017] A rail vehicle, including the rail vehicle body end wall structure as described above.

[0018] The present invention provides a rail vehicle body end wall structure, including a sill, a first door upper beam, and a first end wall panel profile. The top sides of two first end wall panel profiles that are close to each other are respectively fixed to the two ends of the first door upper beam to form an inner frame structure of a door shape. The inner frame structure encloses the end wall door area, and the bottom surface of the first end wall panel profile is fixed to the top surface of the sill. On each first end wall panel profile, the end closest to the first door upper beam is flipped inward in the longitudinal direction to form a first end wall C-shaped plate. Multiple vertical ribs are arranged in sequence in the transverse direction on the inner end face of the first end wall panel profile in the longitudinal direction, and multiple auxiliary plates are arranged at intervals in the vertical direction. The two ends of the auxiliary plates are respectively welded to the free end of the first end wall C-shaped plate and its nearest vertical rib.

[0019] The main body of the end gate pillar and the upper beam of the first gate are integrated on the same profile, and each first end wall C-shaped plate can be reinforced by separately set supplementary plates, so that the first end wall C-shaped plate, the vertical rib closest to the middle and the supplementary plate can serve as the end gate pillar. Compared with the welding between the end gate pillar and the end wall plate in the existing technology, the amount of welding can be reduced to the welding between the supplementary plate and the first end wall plate profile and the vertical rib, which can reduce the amount of welding and reduce the processing difficulty. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a first side plan view of a specific embodiment of the rail vehicle body end wall structure provided by the present invention;

[0022] Figure 2 for Figure 1 AA section view;

[0023] Figure 3 for Figure 1 DD sectional view;

[0024] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0025] Figure 5 for Figure 4 The right-hand structural diagram in the middle;

[0026] Figure 6 This is a second side plan view of a specific embodiment of the rail vehicle body end wall structure provided by the present invention;

[0027] Figure 7 for Figure 6GG cross-sectional view;

[0028] Figure 8 for Figure 6 BB section view;

[0029] Figure 9 for Figure 6 CC section view;

[0030] Figure 10 for Figure 6 EE sectional view;

[0031] Figure 11 for Figure 6 FF sectional view;

[0032] Figure 12 This is a first axonometric drawing of a specific embodiment of the rail vehicle body end wall structure provided by the present invention;

[0033] Figure 13 This is a second axonometric view of a specific embodiment of the rail vehicle body end wall structure provided by the present invention;

[0034] Figure 14 for Figure 13 First partial structural diagram;

[0035] Figure 15 for Figure 13 The second local structural diagram;

[0036] Figure 16 for Figure 13 The third partial structural diagram;

[0037] Figure 17 for Figure 13 The fourth partial structural diagram.

[0038] Figure label:

[0039] Threshold 1, First end wall panel profile 2, Vertical rib 201, First end wall C-shaped plate 202, Reinforcing plate 203, Second end wall panel profile 3, Second end wall C-shaped plate 301, First door upper beam 4, Second door upper beam 5, Second beam C-shaped plate, Side skin plate 6, Upper skin plate 7, End corner post 8, Side aluminum plate 801, Top curved beam 9, End top beam 10, Small longitudinal beam 11, Small horizontal beam 12, Screw seat 13, Reinforcing plate 14, End wall door area 15;

[0040] Horizontal (X), Vertical (Y). Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The core of this invention is to provide a rail vehicle body end wall structure and a rail vehicle, which can reduce the amount of welding and reduce the processing difficulty.

[0043] For a specific embodiment of the rail vehicle body end wall structure provided by this invention, please refer to [the relevant documentation / reference]. Figures 1 to 17 The structure includes a threshold 1, a first end wall panel profile 2, a second end wall panel profile 3, a first door upper beam 4, a second door upper beam 5, a side skin panel 6, an upper skin panel 7, an end corner post 8, a top curved beam 9, an end top beam 10, a small longitudinal beam 11, a small horizontal beam 12, etc. All of the above structures are mainly made of aluminum plates, specifically single-layer aluminum plates.

[0044] Furthermore, such as Figure 1 As shown, the top sides of the two first end wall panel profiles 2, which are close to each other, are fixed to both ends of the first door upper beam 4 to form the inner frame structure of the door. The inner frame structure encloses the end wall door area 15, and the bottom surface of the first end wall panel profile 2 is fixed to the top surface of the threshold 1.

[0045] Among them, such as Figure 5 As shown, the first end wall panel profile 2 is the main load-bearing structure of the end door and the end wall door area 15. On the first end wall panel profile 2, the end closest to the upper crossbeam 4 of the first door is turned inward in the longitudinal direction Y to form a first end wall C-shaped plate 202. On the inner end face of the first end wall panel profile 2 in the longitudinal direction Y, multiple vertical ribs 201 are arranged sequentially along the transverse direction X. These reinforcement plates 203 are arranged at intervals in the vertical direction, and the two ends of the reinforcement plates 203 are respectively welded to the free end of the first end wall C-shaped plate 202 and its nearest vertical rib 201. Specifically, the first end wall panel profile 2 is made in the form of a single-layer plate with reinforcement, which ensures strength while reducing self-weight.

[0046] Among them, the horizontal (X), vertical (Y), and vertical directions are three different directions, which can be perpendicular to each other in pairs.

[0047] The threshold 1 is the integral load-bearing structure of the end wall structure, specifically extending along the horizontal X direction. Optionally, the threshold 1 is a door-shaped structure with an opening at the bottom, specifically a door-shaped extruded aluminum alloy profile. To ensure the structural strength of the threshold 1, a diagonal rib is added inside the threshold 1 for reinforcement.

[0048] In this embodiment, the main body of the end gate pillar and the first gate upper beam 4 are integrated onto the same profile, and each first end wall C-shaped plate 202 can be reinforced by a separately provided supplementary plate 203. This allows the first end wall C-shaped plate 202, the centrally located vertical rib 201, and the supplementary plate 203 to function as end gate pillars. Compared to the welding between the end gate pillar and the end wall panel in the prior art, the amount of welding can be reduced to the welding between the supplementary plate 203 and the first end wall panel profile 2 and the vertical rib 201, thus reducing the amount of welding and lowering the processing difficulty. Furthermore, the vertical rib 201 can be the original reinforcing beam of the first end wall panel profile 2. By welding the supplementary plate 203 to its vertical rib 201, the original structure can be effectively utilized.

[0049] Furthermore, such as Figure 6 As shown, the end wall structure includes a downward-opening, portal-shaped outer perimeter. An inner frame structure is fixed to the inner side of the outer perimeter, providing structural strength and also serving as an interface for welding the roof, side walls, and underframe. Specifically, the outer perimeter includes a top beam 10, two corner posts 8, and two downward-extending, arc-shaped top curved beams 9. The top beam 10 has two top curved beams 9 fixedly connected to its two ends in the transverse X direction, and each top curved beam 9 has two corner posts 8 fixedly connected to its bottom end.

[0050] The top curved beam 9 comprises a profile formed by welding multiple arc-shaped aluminum plates, for example, four plates, with adjacent plates overlapping each other. Since directly bending a profile with sufficient strength into an arc shape is difficult, this embodiment uses arc-shaped aluminum plates welded together to create the arc-shaped structure, reducing processing difficulty. Additionally, aluminum plates can be welded to the outer surface of the top curved beam 9 for connecting to structures such as the roof panel and side wall panels.

[0051] Among them, such as Figure 14 and Figure 17 As shown, both the top beam 10 and the corner column 8 include profiled members with built-in diagonal ribs, which can be the same type of profile. The top beam 10 and the corner column 8 are straight beams, and the profiled members can be formed by bending the same type of profile. Three or more diagonal ribs are provided inside the cavities of the profiled members in the top beam 10 and the corner column 8 to increase the rigidity of the profiles. Additionally, reinforcing bars can be provided on the outside of the top beam 10 and the corner column 8 to overlap the roof panel and side wall panel.

[0052] Furthermore, such as Figure 11 and Figure 14As shown, on the same side of the end wall door area 15 in the transverse X direction, a second end wall panel profile 3 is fixedly installed between the first end wall panel profile 2 and the end corner post 8, and the first end wall panel profile 2 and the end corner post 8 are connected to different positions of the second end wall panel profile 3 in the longitudinal Y direction. The second end wall panel profile 3 is a transition structure between the inner and outer structures of the end wall structure in the transverse X direction, and these two parts have a thickness difference in the longitudinal Y direction, such as... Figure 11 As shown, with a thickness difference of 100mm, the first end wall panel profile 2 and the end corner column 8 can be connected by the second end wall panel profile 3, which have different requirements in the longitudinal Y direction.

[0053] Among them, such as Figure 11 As shown, the second end wall panel profile 3 includes a second end wall C-shaped plate 301 with an opening facing the corresponding end corner post 8. The end corner post 8 is fixed to one edge of the opening of the second end wall C-shaped plate 301. One end of the first end wall panel profile 2 is fixed to the middle of the surface of the second end wall C-shaped plate 301 facing away from its opening. The structure is simple, easy to process, and can reduce weight. In addition, the second end wall C-shaped plate 301 and the first end wall panel profile 2 adopt a lap weld joint, which facilitates welding and ensures welding quality through the built-in backing structure.

[0054] Among them, such as Figure 14 As shown, the corner post 8 is welded to the corresponding second end wall C-shaped plate 301 by multiple side aluminum plates 801 arranged sequentially in the vertical direction. Optionally, the side aluminum plates 801 are 2mm thick aluminum plates. Welding through the side aluminum plates 801 reduces processing difficulty, and the number of side aluminum plates 801 can be set as needed, which can improve assembly flexibility.

[0055] The first end wall panel profile 2 and the second end wall panel profile 3 are made of single-layer aluminum plates, unlike the conventional double-layer profile structure, allowing for lightweight design. Furthermore, the strength of the first end wall panel profile 2 and the second end wall panel profile 3 can be ensured through a single-layer reinforced structure. In addition, other structures in the end wall structure can also be made of single-layer aluminum plates.

[0056] Furthermore, such as Figure 1 As shown, the top surfaces of the two first end wall panel profiles 2, the two second end wall panel profiles 3, and the top surface of the first door upper beam 4 are all fixed to the bottom surface of the second door upper beam 5. The top surface of the second door upper beam 5 is fixed to the top lower surface of the outer perimeter of the end wall. The second door upper beam 5 and the two second end wall panel profiles 3 form a U-shaped frame, providing a platform for the installation of the inner windshield. The second door upper beam 5 can be used to install the vehicle's inner windshield.

[0057] The second upper crossbeam 5 includes an upward-opening C-shaped plate 501, and the first upper crossbeam 4 includes an upward-opening C-shaped plate 401. The top end plate of the first C-shaped plate 401 in the longitudinal Y direction is fixed to the bottom end of the second C-shaped plate 501. The first C-shaped plate 401 provides an interface for the installation of the end door mechanism.

[0058] The second crossbeam C-shaped plate 501 has mounting holes on its outer side plate in the longitudinal Y direction for installing an inner windshield. A screw seat is mounted on the inner end of this outer side plate in the longitudinal Y direction for easy bolt connection. The inner side plate of the second crossbeam C-shaped plate 501 in the longitudinal Y direction has an upward-turning structure, which improves structural strength. Additionally, stiffening ribs can be provided on the bottom surface of the second crossbeam C-shaped plate 501 for welding the first crossbeam C-shaped plate 401.

[0059] The second door upper beam 5 and the second end wall panel profile 3 are both located above the end wall door area 15 and can be made of the same profile to improve the profile utilization rate.

[0060] The outer end face of the top beam 10 in the longitudinal Y direction is covered by an upper skin plate 7 between the outer end face of the upper end of the second door upper beam 5 in the longitudinal Y direction. On the same side of the end wall door area 15 in the transverse X direction, the outer end face of the corner post 8 in the longitudinal Y direction and the outer end face of the second end wall panel profile 3 in the longitudinal Y direction are covered by a side skin plate 6. The upper skin plate 7 and the side skin plate 6 can fill the unconnected gaps in the frame's openwork, ensuring the aesthetic appearance of the end wall structure. Optionally, the upper skin plate 7 and the side skin plate 6 are welded to the rest of the end wall structure using resistance spot welding, which reduces welding heat input and improves the overall flatness of the end wall.

[0061] In addition, based on the thickness difference provided by the second end wall panel profile 3 to the first end wall panel profile 2 and the side skin panel 6 in the longitudinal Y direction, the outer end face of the side skin panel 6 in the longitudinal Y direction can be used as the windshield mounting surface, the outer end face of the first end wall panel profile 2 in the longitudinal Y direction can be used as the through passage mounting surface, and the specific thickness value of the second end wall panel profile 3 in the longitudinal Y direction can be adjusted according to the different windshield and through passage models configured in the vehicle.

[0062] In addition, the upper skin plate 7 is reinforced with multiple small longitudinal beams 11 on its inner end face in the longitudinal Y direction, and the side skin plate 6 is reinforced with multiple small transverse beams 12 on its inner end face in the longitudinal Y direction. Optionally, both the small longitudinal beams 11 and the small transverse beams 12 are cap-shaped structures to provide a structure for welding.

[0063] In addition, the end wall structure is further improved by the installation of bolt seats 13 and reinforcing plates 14. The bolt seats are made of aluminum-clad iron, which facilitates drilling and tapping when installing external equipment. The reinforcing plates 14 are a reinforcement structure for the vehicle body, reducing stress concentration at sharp corners.

[0064] Among them, for the C-shaped plate mentioned above, its corners can be close to structures with more obvious edges.

[0065] The rail vehicle body end wall structure in this invention is an aluminum alloy rail vehicle body end wall structure. This structure is mainly made of aluminum alloy extruded profiles and plates welded together. The aluminum alloy cross-section profile is a single-layer plate reinforced structure, covered with an outer skin aluminum plate, which can achieve the maximum weight reduction effect while ensuring strength requirements.

[0066] In addition to the aforementioned rail vehicle body end wall structure, this invention also provides a rail vehicle including a rail vehicle body end wall structure. Specifically, the rail vehicle body end wall structure can be any of the rail vehicle body end wall structures provided in the above embodiments, and the beneficial effects can be referred to the respective embodiments above. The structures of other parts of this rail vehicle are described in the prior art and will not be repeated here.

[0067] It should be noted that when an element is referred to as "fixing" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0068] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0071] The foregoing has provided a detailed description of the rail vehicle body end wall structure and the rail vehicle provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A rail vehicle body end wall structure, characterized in that, The system includes a threshold (1), a first door upper beam (4), and a first end wall panel profile (2). The top sides of the two first end wall panel profiles (2) that are close to each other are fixed to the two ends of the first door upper beam (4) to form the inner frame structure of the door. The inner frame structure encloses the end wall door area (15). The bottom surface of the first end wall panel profile (2) is fixed to the top surface of the threshold (1). On each of the first end wall panel profiles (2), the end closest to the first door upper beam (4) is flipped inward in the longitudinal (Y) direction to form a first end wall C-shaped plate (202). Multiple vertical ribs (201) are arranged sequentially in the transverse (X) direction on the inner end face of the first end wall panel profile (2) in the longitudinal (Y) direction. Multiple supplementary plates (203) are arranged at intervals in the vertical direction. The two ends of the supplementary plates (203) are respectively welded to the free end of the first end wall C-shaped plate (202) and the nearest vertical rib (201). It also includes two corner posts (8), two first end wall panel profiles (2) located between the two corner posts (8) in the transverse (X) direction; located on the same side of the end wall door area (15) in the transverse (X) direction, a second end wall panel profile (3) is fixedly arranged between the first end wall panel profile (2) and the corner post (8), and the first end wall panel profile (2) and the corner post (8) are connected to different positions of the second end wall panel profile (3) in the longitudinal (Y) direction; the second end wall panel profile (3) includes a second end wall C-shaped plate (301) facing the opening of the corresponding corner post (8), the corner post (8) is fixed to one side edge of the opening of the second end wall C-shaped plate (301), and one end of the first end wall panel profile (2) is fixed to the middle of the surface of the second end wall C-shaped plate (301) in the transverse (X) direction away from its opening.

2. The rail vehicle body end wall structure according to claim 1, characterized in that, It also includes the periphery of the downward-opening door-shaped end wall, the periphery of the end wall including the top beam (10), the two corner posts (8) and the two arc-shaped top beams (9) extending obliquely downward; the two top beams (9) are respectively fixedly connected to the two ends of the top beam (10) in the horizontal (X) direction, and the bottom end of each top beam (9) is respectively fixedly connected to one corner post (8); the inner frame structure is fixed to the inner side of the periphery of the end wall; the top beam (9) includes a mouth-shaped profile made of multiple arc-shaped aluminum plates welded together.

3. The rail vehicle body end wall structure according to claim 2, characterized in that, Both the top beam (10) and the corner column (8) include profiles with built-in diagonal reinforcement.

4. The rail vehicle body end wall structure according to any one of claims 1 to 3, characterized in that, The corner post (8) is welded to the corresponding second end wall C-shaped plate (301) by multiple side aluminum plates (801) arranged sequentially in the vertical direction.

5. The rail vehicle body end wall structure according to any one of claims 1 to 3, characterized in that, The first end wall panel profile (2) and the second end wall panel profile (3) are made of single-layer aluminum plates.

6. The rail vehicle body end wall structure according to claim 2 or 3, characterized in that, It also includes a second upper beam (5), the top surfaces of the two first end wall panel profiles (2), the top surfaces of the two second end wall panel profiles (3), and the top surface of the first upper beam (4) are all fixed to the bottom surface of the second upper beam (5), and the top surface of the second upper beam (5) is fixed to the top lower surface of the periphery of the end wall; wherein, the second upper beam (5) includes a second beam C-shaped plate (501) with the opening facing upward, the first upper beam (4) includes a first beam C-shaped plate (401) with the opening facing upward, and the top end of the outer end plate of the first beam C-shaped plate (401) in the longitudinal direction (Y) is fixed to the bottom end of the second beam C-shaped plate (501).

7. The rail vehicle body end wall structure according to claim 6, characterized in that, The outer end face of the top beam (10) in the longitudinal direction (Y) and the outer end face of the upper end of the second door beam (5) in the longitudinal direction (Y) are covered by an upper skin plate (7); on the same side of the end wall door area (15) in the transverse direction (X), the outer end face of the corner post (8) in the longitudinal direction (Y) and the outer end face of the second end wall panel profile (3) in the longitudinal direction (Y) are covered by a side skin plate (6).

8. A rail vehicle, characterized in that, Includes the rail vehicle body end wall structure as described in any one of claims 1 to 7.

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