Roof boarding ladder butt joint structure and hydrogen energy train

Abstract

The utility model discloses a car roof boarding ladder butt joint structure and a hydrogen energy train, and relates to the technical field of hydrogen energy trains, the car roof boarding ladder butt joint structure comprises a fairing support fixedly arranged between a car roof plate and a side fairing; the fairing support provides stable supporting force for the boarding ladder, and the boarding ladder can be directly and obliquely arranged on the side fairing in a straddling mode during overhauling. And the hook arranged at the top of the boarding ladder can be directly hooked and hung at the top of the fairing support, so that the stability of the boarding ladder is further enhanced. The vertical supporting plate is provided with a through avoiding notch, and the avoiding notch is used for avoiding the boarding ladder. By means of the design, the boarding ladder can be stably hung on the side edge of the vehicle body, a maintainer can climb on a vehicle roof from the side edge of the vehicle body through the boarding ladder to conduct maintenance operation, stability is better, and use is more convenient. Compared with a traditional mode of hanging the boarding ladder from the top of the vehicle, the improvement remarkably improves the efficiency and the safety of the overhaul work.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen-powered train technology, and in particular to a roof-mounted boarding ladder docking structure and a hydrogen-powered train. Background Technology

[0002] Currently, access to the roof of hydrogen-powered trains primarily relies on ladders mounted at the ends of the vehicle, allowing maintenance personnel to easily climb onto the roof for repairs. However, with the introduction of hydrogen-powered trains, this traditional method faces new challenges. Hydrogen-powered trains feature aerodynamically designed streamlined fairing structures at the front and rear ends of the roof. These structures not only have significant vertical height but also exhibit an outwardly flared, curved shape, directly obstructing the original ladder access area, rendering the traditional ladders unusable.

[0003] Therefore, maintenance personnel can only work from the top of the train. However, the front section of the hydrogen-powered train's roof houses several large, critical pieces of equipment, including hydrogen storage tanks, fuel cell stacks, and radiator arrays. These devices are arranged vertically in a modular fashion. This layout not only occupies a significant amount of space on the roof but also forces maintenance personnel to traverse multiple equipment modules within a narrow working passageway to reach the required maintenance location. This confined working environment not only increases the difficulty of the maintenance work but also introduces safety hazards such as slipping and collisions, severely impacting the efficiency and safety of the maintenance work. Utility Model Content

[0004] The purpose of this utility model is to provide a roof-mounted boarding ladder docking structure and a hydrogen-powered train. A fairing support is added between the roof panel and the side fairing. During maintenance, the boarding ladder is directly hung on the fairing support, which solves the technical problem that it is impossible to hang the boarding ladder on the side of the hydrogen-powered train body.

[0005] To achieve the above objectives, this utility model provides a vehicle roof boarding ladder docking structure, including a fairing support fixed between the roof panel and the side fairing; when the boarding ladder is tilted across the side fairing, the hook provided at the top of the boarding ladder is hooked onto the top of the fairing support.

[0006] The fairing support includes a vertical support plate fixed to the roof panel, and the top of the side fairing overlaps with the top of the vertical support plate.

[0007] The vertical support plate has a through clearance notch to allow passage for the boarding stairs.

[0008] In some embodiments, the fairing support is L-shaped, and the fairing support further includes a horizontal fixing plate integrally and vertically connected to the vertical support plate; the horizontal fixing plate is parallel to the roof panel and is fixed to the roof panel; the top of the side fairing has a side upturned edge, the side upturned edge overlaps the top of the vertical support plate, and the vertical support plate is fixedly connected to the side upturned edge.

[0009] In some embodiments, the side fairing is inclined and mounted on the fairing support; the end of the side fairing near the horizontal fixed plate is bent to form a bottom bend edge, and a transition connecting plate is fixed to the bottom bend edge, and the transition connecting plate is snapped into the side of the horizontal fixed plate.

[0010] In some embodiments, the side of the horizontal fixing plate extends to form a snap-fit ​​portion, the snap-fit ​​portion having a snap-fit ​​groove, and the transition connecting plate is bent to form a snap-fit ​​hook, the snap-fit ​​hook and the snap-fit ​​groove being snap-fitted together laterally along the vehicle body.

[0011] In some embodiments, both the vertical support plate and the horizontal fixing plate are hollow structures. The vertical support plate is provided with a number of horizontal reinforcing ribs that are parallel to the roof panel; the horizontal fixing plate is provided with a number of vertical reinforcing ribs that are perpendicular to the roof panel.

[0012] In some embodiments, the roof panel is integrally formed with an upwardly protruding fixing seat, and the horizontal fixing plate is connected to the fixing seat by connecting bolts; a groove is formed in the fixing seat, and the head of the connecting bolt is embedded in the groove.

[0013] In some embodiments, the roof panel and the side fairing are fixed with a plurality of auxiliary support seats, and the fairing support is located between two auxiliary support seats; the width of the fairing support is greater than the width of the auxiliary support seats.

[0014] In some embodiments, the auxiliary support is L-shaped.

[0015] In some embodiments, a retaining ring is fixed at one end of the vertical support plate away from the roof panel, the retaining ring being positioned above the top of the vertical support plate, and the retaining ring being used for attaching the safety belt of the boarding ladder.

[0016] This utility model also provides a hydrogen-powered train, including the aforementioned roof boarding ladder docking structure.

[0017] Compared to the prior art, this utility model adds a fairing support between the roof panel and the side fairing. The fairing support includes a vertical support plate fixed to the roof panel, and the top of the vertical support plate at the top of the side fairing overlaps and connects, thereby improving the support strength of the side fairing.

[0018] Thanks to the fairing support, the loading ladder can be directly tilted and straddled on the side fairing during maintenance. The side fairing, supported by the fairing support, provides stable support for the loading ladder. Simultaneously, the hooks at the top of the loading ladder can be directly hooked onto the top of the fairing support, further enhancing the ladder's stability. This design allows the loading ladder to be securely attached to the side of the vehicle body, solving the previous problem of not being able to mount the ladder on the side. Maintenance personnel can use the loading ladder from the side of the vehicle body to access the roof for maintenance work, which is not only more stable but also more convenient. Compared to the traditional method of mounting the loading ladder from the top of the vehicle, this improvement significantly enhances the efficiency and safety of maintenance work. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the vehicle roof boarding ladder docking structure provided in this embodiment of the utility model;

[0021] Figure 2 A diagram showing the state of the vehicle roof boarding ladder docking structure provided in this embodiment of the utility model when the boarding ladder is being attached;

[0022] Figure 3 for Figure 2 Side view of the central fairing support;

[0023] Figure 4 for Figure 2 A magnified view of the connection between the middle side fairing and the fairing support.

[0024] The attached figures are labeled as follows:

[0025] 1. Roof panel; 2. Side fairing; 3. Fairing support; 4. Boarding ladder; and 5. Auxiliary support base.

[0026] Fixing base 11 and connecting bolt 12;

[0027] Settling tank 111;

[0028] Side upturned edge 21, bottom bent edge 22 and transition connecting plate 23;

[0029] 231-type hook;

[0030] Vertical support plate 31 and horizontal fixing plate 32;

[0031] Avoidance gap 311, horizontal reinforcing rib 312 and retaining ring 313;

[0032] The snap-fit ​​part 321, the snap-fit ​​groove 322, and the vertical reinforcing rib 323;

[0033] Hook 41. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This utility model discloses a vehicle roof boarding ladder docking structure, as shown in the attached figure. Figure 1 and 2 As shown, the system includes a fairing support 3, which is fixed between the roof panel 1 and the side fairing 2, allowing the side fairing 2 to be tilted across the fairing support 3 and the roof panel 1, and providing stable support for the side fairing 2. When the boarding ladder 4 is tilted across the side fairing 2, the hook 41 at the top of the boarding ladder 4 is attached to the top of the fairing support 3.

[0037] In this invention, a fairing support 3 is added between the roof panel 1 and the side fairing 2. With the support of the fairing support 3, the side fairing 2 can provide stable support for the boarding ladder 4. During maintenance, the boarding ladder 4 can be directly tilted across the side fairing 2.

[0038] The fairing support 3 includes a vertical support plate 31, which is vertically fixed to the roof panel 1. The top of the side fairing 2 overlaps with the top of the vertical support plate 31, increasing the contact area between the side fairing 2 and the vertical support plate 31. This not only improves the connection reliability between the fairing support 3 and the side fairing 2, but also enhances the support strength of the fairing support 3 for the side fairing 2, reducing the risk of the boarding ladder slipping off the side of the vehicle body during maintenance, thus ensuring maintenance safety.

[0039] The vertical support plate 31 is provided with a through clearance notch 311, which is used to avoid collision and interference between the loading ladder 4 and the fairing support 3 when the loading ladder 4 is attached, ensuring that the loading ladder 4 can be used normally during maintenance. The clearance notch 311 is specifically a rectangular through hole that runs along the thickness of the vertical support plate 31. Its size and specifications can be adapted to the specifications of the loading ladder, and are not specifically limited here.

[0040] Meanwhile, the hooks at the top of the loading ladder 4 can be directly hooked onto the top of the fairing support 3, further enhancing the stability of the loading ladder 4. This design allows the loading ladder 4 to be securely attached to the side of the vehicle body, solving the previous problem of not being able to attach the loading ladder 4 to the side of the vehicle body. Maintenance personnel can use the loading ladder 4 from the side of the vehicle body to climb onto the roof for maintenance work, which is not only more stable but also more convenient to use. Compared to the traditional method of attaching the loading ladder 4 from the top of the vehicle body, this improvement significantly enhances the efficiency and safety of maintenance work.

[0041] As a preferred embodiment, as shown in the appendix Figure 2 and 3 As shown, the fairing support 3 is L-shaped and includes a horizontal fixing plate 32 integrally and vertically connected to the vertical support plate 31. The vertical support plate 31 and the horizontal fixing plate 32 can be manufactured using an integral molding process, ensuring sufficient connection strength between them. This ensures that the fairing support 3 provides reliable support for the side fairing 2 and the boarding ladder 4. The horizontal fixing plate 32 is parallel to the roof panel 1 and is fixed to it, ensuring that the fairing support 3 is reliably fixed to the top of the roof panel 1. The top of the side fairing 2 has a side upturned edge 21, which overlaps the top of the vertical support plate 31, increasing the contact area between the side fairing 2 and the fairing support 3. The vertical support plate 31 is fixedly connected to the side upturned edge 21, effectively improving the connection strength between the side fairing 2 and the fairing support 3. Specifically, the top of the vertical support plate 31 and the side upturned edge 21 can be connected by rivets or bolts, and the connection method is not specifically limited here.

[0042] The side fairing 2 is tilted and mounted on the fairing support 3, so that the side fairing 2 is tilted and transitionally connected between the top fairing and the side wall of the vehicle body, which optimizes the aerodynamic shape of the side of the vehicle body, avoids causing large wind resistance, and effectively improves aerodynamic performance.

[0043] The side fairing 2 and the fairing support 3 are detachably connected. As a preferred embodiment, see attached... Figure 3 and 4As shown, the side fairing 2 is bent at one end near the horizontal fixing plate 32 to form a bottom bend edge 22, which is parallel to the roof panel 1. A transition connecting plate 23 is fixed to the bottom bend edge 22, extending towards the horizontal fixing plate 32 to transitionally connect the bottom bend edge 22 and the horizontal fixing plate 32. Specifically, the transition connecting plate 23 overlaps with the bottom bend edge 22 and is anchored to the bottom bend edge 22 by means of rivets. The transition connecting plate 23 is snapped into the side of the horizontal fixing plate 32, facilitating quick disassembly, inspection, and maintenance, and improving maintenance efficiency.

[0044] As a preferred embodiment, as shown in the appendix Figure 4 As shown, the horizontal fixing plate 32 extends to form a snap-fit ​​portion 321 on its side. The snap-fit ​​portion 321 has a snap-fit ​​groove 322. The transition connecting plate 23 is bent to form a snap-fit ​​hook 231. The snap-fit ​​hook 231 and the snap-fit ​​groove 322 are snap-fitted together along the transverse direction of the vehicle body. This design not only facilitates disassembly and assembly but also reduces the heat input of rapid welding, lowers the manufacturing difficulty of the roof, reduces the risk of vehicle body deformation, and improves the processing accuracy of the vehicle body. In this text, the transverse direction of the vehicle body refers to the width direction parallel to the vehicle body. The snap-fit ​​portion 321 is preferably formed by an integral molding process on the side of the horizontal fixing plate 32 away from the vertical support plate 31, and the height of the snap-fit ​​portion 321 is less than one-third of the thickness of the horizontal fixing plate 32.

[0045] As a preferred embodiment, both the vertical support plate 31 and the horizontal fixing plate 32 are hollow structures, which ensures that the weight of the vertical support plate 31 and the horizontal fixing plate 32 is reduced without affecting the support strength. This is conducive to achieving lightweight design and ensures that the fairing support 3 can achieve buffering and vibration reduction to a certain extent, reducing the risk of loosening at the connection between the fairing support 3, the roof plate 1 and the side fairing 2.

[0046] The vertical support plate 31 is internally fitted with several horizontal reinforcing ribs 312 parallel to the roof plate 1; the horizontal fixing plate 32 is internally fitted with several vertical reinforcing ribs 323 perpendicular to the roof plate 1, effectively improving the mechanical strength of the fairing support 3, enabling the fairing support 3 to withstand the lateral or longitudinal load impact transmitted by the vehicle body to a certain extent, thereby improving the supporting force of the fairing support 3 and ensuring that the fairing support 3 can stably support the side airflow.

[0047] The roof panel 1 and the fairing support 3 are detachably connected for easy assembly and disassembly. In a preferred embodiment, the roof panel 1 is integrally formed with an upwardly protruding fixing seat 11. A horizontal fixing plate 32 is connected to the fixing seat 11 by connecting bolts 12. A recess 111 is formed within the fixing seat 11, and the head of the connecting bolt 12 is embedded in the recess 111, preventing interference between the head of the connecting bolt 12 and the roof panel 1, and making the connection between the roof panel 1 and the fairing support 3 more compact. It should be noted that at least one end of the recess 111 has an opening, facilitating the insertion of the connecting bolt 12 into the recess 111 through the opening. Furthermore, the recess 111 extends along the length of the roof panel 1, guiding the sliding of the connecting bolt 12 and flexibly adjusting the fixing position of the fairing support 3 on the roof panel 1. The fixing seat 11 is fixed to the roof panel 1 by integral molding or welding.

[0048] The roof panel 1 and the side fairing 2 are fixedly provided with several auxiliary support seats 5. The fairing support 3 is located between two auxiliary support seats 5, so that the auxiliary support seats 5 and the fairing support 3 jointly support the side fairing 2, ensuring that the side fairing 2 can provide stable support for the boarding ladder 4. The width of the fairing support 3 is greater than the width of the auxiliary support seats 5, and the support strength of the fairing support 3 is greater than the support strength of the auxiliary support seats 5.

[0049] In a preferred embodiment, the auxiliary support base 5 is L-shaped, comprising an integrally connected vertical support section and a horizontal support section. The height of the vertical support section is equal to the height of the vertical support plate 31, and the effective connection length of the horizontal support section is equal to the effective connection length of the horizontal fixing plate 32. Here, the effective connection length refers to the length connected to the roof panel 1.

[0050] In a preferred embodiment, a retaining ring 313 is fixedly provided at the end of the vertical support plate 31 away from the roof panel 1. The retaining ring 313 is positioned above the top of the vertical support plate 31 and is used for attaching the safety belt of the boarding ladder 4 to prevent maintenance personnel from accidentally falling from the boarding ladder 4, thereby further improving the safety of maintenance personnel. Specifically, the retaining ring 313 is a C-shaped structure welded to the vertical support plate 31.

[0051] This utility model embodiment also discloses a hydrogen-powered train, including the aforementioned roof boarding ladder docking structure. By optimizing the roof boarding ladder docking structure, the maintenance efficiency and safety of the roof are improved, thereby enhancing the overall maintenance efficiency and safety of the train.

[0052] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0053] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vehicle roof boarding ladder docking structure, characterized in that, Includes a fairing support (3) fixed between the roof panel (1) and the side fairing (2); when the boarding ladder (4) is tilted across the side fairing (2), the hook (41) provided on the top of the boarding ladder (4) is attached to the top of the fairing support (3); The fairing support (3) includes a vertical support plate (31) that is vertically fixed to the roof panel (1), and the top of the side fairing (2) overlaps with the top of the vertical support plate (31). The vertical support plate (31) is provided with a through clearance (311), which is used to avoid the boarding ladder (4).

2. The vehicle roof boarding ladder docking structure according to claim 1, characterized in that, The fairing support (3) is L-shaped, and the fairing support (3) also includes a horizontal fixing plate (32) that is integrally and vertically connected to the vertical support plate (31); the horizontal fixing plate (32) is parallel to the roof plate (1) and the horizontal fixing plate (32) is fixed to the roof plate (1); the top of the side fairing (2) is formed with a side upturned edge (21), the side upturned edge (21) overlaps the top of the vertical support plate (31), and the vertical support plate (31) is fixedly connected to the side upturned edge (21).

3. The vehicle roof boarding ladder docking structure according to claim 2, characterized in that, The side guide shield (2) is inclined and mounted on the guide shield support (3); the side guide shield (2) is bent at one end near the horizontal fixing plate (32) to form a bottom bending edge (22), and a transition connecting plate (23) is fixed on the bottom bending edge (22), and the transition connecting plate (23) is snapped and connected to the side of the horizontal fixing plate (32).

4. The vehicle roof boarding ladder docking structure according to claim 3, characterized in that, The side of the horizontal fixing plate (32) extends to form a snap-fit ​​portion (321), the snap-fit ​​portion (321) has a snap-fit ​​groove (322), the transition connecting plate (23) is bent to form a snap-fit ​​hook (231), the snap-fit ​​hook (231) and the snap-fit ​​groove (322) are snap-fit ​​connected to each other along the vehicle body laterally.

5. The vehicle roof boarding ladder docking structure according to claim 2, characterized in that, Both the vertical support plate (31) and the horizontal fixing plate (32) are hollow structures. The vertical support plate (31) is provided with a number of horizontal reinforcing ribs (312) that are parallel to the roof plate (1); the horizontal fixing plate (32) is provided with a number of vertical reinforcing ribs (323) that are perpendicular to the roof plate (1).

6. The vehicle roof boarding ladder docking structure according to claim 2, characterized in that, The roof panel (1) is integrally formed with an upwardly protruding fixing seat (11), and the horizontal fixing plate (32) is connected to the fixing seat (11) by a connecting bolt (12); a groove (111) is formed in the fixing seat (11), and the head of the connecting bolt (12) is embedded in the groove (111).

7. The vehicle roof boarding ladder docking structure according to any one of claims 1 to 6, characterized in that, The roof panel (1) and the side fairing (2) are fixed with a number of auxiliary support seats (5), and the fairing support (3) is located between two of the auxiliary support seats (5); the width of the fairing support (3) is greater than the width of the auxiliary support seat (5).

8. The vehicle roof boarding ladder docking structure according to claim 7, characterized in that, The auxiliary support base (5) is L-shaped.

9. The vehicle roof boarding ladder docking structure according to any one of claims 1 to 6, characterized in that, The vertical support plate (31) is fixed with a snap ring (313) at one end away from the roof plate (1). The snap ring (313) is set above the top of the vertical support plate (31) and is used for the safety belt of the boarding ladder (4) to be attached.

10. A hydrogen-powered train, characterized in that, Includes the roof-mounted boarding ladder docking structure as described in any one of claims 1 to 9.

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