Side wall structure and train

Abstract

The side wall structure comprises a side wall frame and a side wall plate arranged on the side wall frame, the side wall frame comprises a transverse beam and a longitudinal beam, the transverse beam is arranged in the transverse direction, the longitudinal beam is arranged in the longitudinal direction, the longitudinal beam is connected with the transverse beam, the longitudinal beam comprises an arc top section arranged at the top of the side wall frame, and the arc top section is connected with the side wall frame. The area of the cross section of the arc top section is gradually increased in the direction away from the middle of the longitudinal beam. The arc top section is arranged on the longitudinal beam at the top of the side wall frame, and the cross section area of the arc top section is gradually increased in the direction away from the middle of the longitudinal beam, so that the structural strength of a transition area between the side face and the top face of a train is improved, and the structural strength of the whole side wall structure is improved; therefore, under the condition that the thickness of each beam of the side wall frame is reduced, the side wall frame still has good structural strength, and the requirements for light weight and high strength are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of train technology, and in particular to a side wall structure and a train. BACKGROUND

[0002] With the continuous progress of social economy and the continuous development of science and technology, the construction of speed-raising railway in China is developing rapidly. Among many performance indicators, the lightweight design of the vehicle has become one of the key factors to achieve the speed-raising target.

[0003] The vehicle body, as an important part of the train, plays a crucial role in improving the overall performance of the vehicle. As one of the key components of the vehicle body, the side wall not only bears the isolation function of the internal and external environment, but also directly relates to the overall stiffness and appearance quality of the train.

[0004] In the related art, the vehicle body side wall of the widely used 25 type vehicle and the 160 power concentration motor train unit mainly includes a 3mm type section beam to form a side wall frame, and a 2.5mm side wall plate laid on the outside. However, the vehicle body side wall is heavy, and if the thickness of the beam of the side wall frame is thinned to reduce the weight, the overall stiffness of the side wall will be reduced, thereby affecting the running stability of the train. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a side wall structure and a train to solve the problem of reduced stiffness of the side wall caused by reducing the thickness of the side wall frame beam.

[0006] In one aspect, the present application provides a side wall structure, comprising a side wall frame and a side wall plate arranged on the side wall frame, the side wall frame comprising:

[0007] a cross beam arranged in the transverse direction;

[0008] a longitudinal beam arranged in the longitudinal direction, the longitudinal beam being connected with the cross beam, and the longitudinal beam comprising an arc top section arranged at the top of the side wall frame, the cross-sectional area of the arc top section gradually increasing in the direction away from the middle part of the longitudinal beam.

[0009] In an optional embodiment, the side wall frame further comprises a support beam arranged in the transverse direction, the support beam being connected with the arc top section of the longitudinal beam, and the support beam being arranged on the side of the arc top section close to the side wall plate.

[0010] In an optional embodiment, the support beam comprises a connecting part, the arc top section is provided with a clamping interface on the side facing the support beam, and the connecting part is arranged in the clamping interface.

[0011] In an optional embodiment, the side wall frame further comprises a top beam arranged in the transverse direction at the top of the arc top section, and the top beam covers the top end of the arc top section.

[0012] In one alternative embodiment, the top beam includes a first side and a second side;

[0013] The first side is located on the side of the top beam near the side wall panel, the first side extends out of the top of the arc-shaped section, and the first side extends along the length direction of the arc-shaped section;

[0014] The second side is located on the side of the top beam away from the side wall panel, the second side extends out of the top of the arc-shaped section, and the second side bends toward the thickness direction of the top beam.

[0015] In one alternative embodiment, the longitudinal beam includes a first flange and a second flange located in its width direction, the first flange being bent toward one side in the thickness direction of the longitudinal beam, and the second flange being bent toward the other side in the thickness direction of the longitudinal beam.

[0016] In one alternative embodiment, the longitudinal beam includes a reinforcing section located at the bottom of the side wall frame, the cross-sectional area of ​​which gradually increases in a direction away from the center of the longitudinal beam.

[0017] In one alternative embodiment, the longitudinal beam is provided with weight-reducing holes spaced apart along its length.

[0018] In one optional embodiment, the weight-reducing hole in the arc apex segment is a circular hole.

[0019] On the other hand, this application provides a train, including a car body and the aforementioned side wall structure, wherein the side wall structure is disposed on the car body.

[0020] This application provides a side wall structure and a train. The side wall structure includes a side wall frame and a side wall panel disposed on the side wall frame. An arc-shaped section is provided on the longitudinal beam at the top of the side wall frame. The cross-sectional area of ​​the arc-shaped section gradually increases in the direction away from the middle of the longitudinal beam, which is beneficial to improving the structural strength of the transition area between the side and top surfaces of the train, thereby improving the structural strength of the entire side wall structure. As a result, the steel beam thickness of the side wall frame can be reduced while still having good structural strength, so as to meet the requirements of both lightweight and high strength. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic diagram of the sidewall structure according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the side wall frame according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the longitudinal beam structure of the side wall frame according to an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the top inner side of the side wall structure in an embodiment of this application;

[0026] Figure 5 This is a partial side view of the side wall frame according to an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the installation of the side wall frame and door frame according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Side wall frame; 110-Horizontal beam; 120-Longitudinal beam; 121-Arched top section; 1211-Snap-fit ​​interface; 122-First flange; 123-Second flange; 124-Reinforcing section; 125-Weight reduction hole; 130-Support beam; 140-Top beam; 141-First side; 142-Second side;

[0030] 200-Side wall panel;

[0031] 300 - Door frame; 310 - Connecting plate.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0035] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0036] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0037] Please see Figures 1 to 3 This application provides a side wall structure, including a side wall frame 100 and a side wall panel 200 disposed on the side wall frame 100. The side wall frame 100 includes a horizontal beam 110 and a longitudinal beam 120. The horizontal beam 110 is arranged in the transverse direction, and the longitudinal beam 120 is arranged in the longitudinal direction. The longitudinal beam 120 is connected to the horizontal beam 110. The longitudinal beam 120 includes an arc-shaped top section 121 disposed at the top of the side wall frame 100. The cross-sectional area of ​​the arc-shaped top section 121 gradually increases in the direction away from the middle of the longitudinal beam 120.

[0038] The side wall frame 100, serving as the main support for the side wall, is primarily composed of horizontal beams 110 and longitudinal beams 120. The horizontal beams 110 are arranged transversely and mainly bear horizontal loads, while the longitudinal beams 120 are arranged longitudinally, intersecting and connecting perpendicularly to the horizontal beams 110 to form a stable frame structure. The side wall frame 100 may include window frames and door frames 300, providing installation space for the train's windows and doors.

[0039] Side wall panels 200 are fixedly installed on side wall frames 100 to enclose and protect the train. Lightweight, high-strength materials, such as metal plates or composite panels, can be selected as needed to achieve good thermal insulation, sound insulation, and impact resistance. Multiple side wall panels 200 may be included. For example, the side wall panels 200 are connected to the side wall frame using a plug welding method. This involves pre-drilling holes of a certain depth and diameter in the side wall frame, placing the side wall panels 200 in the predetermined positions, and then welding these holes to fill them, achieving a secure connection between the side wall panels 200 and the side wall frame. Through plug welding, the weld seam connecting the side wall and the roof is moved to the connection point between the side wall frame and the roof, avoiding direct exposure of the weld seam on the side wall panel 200 and improving the appearance quality.

[0040] Please see Figure 2The top of the longitudinal beam 120 is provided with an arc-shaped section 121. The arc-shaped section 121 is an arc-shaped structure used to connect the side wall and the train roof. The cross-sectional area of ​​the arc-shaped section 121 gradually increases in the direction away from the middle of the longitudinal beam 120, which helps to improve the structural strength of the bending area between the roof and the side wall, thereby enhancing the bending resistance of the side wall in the bending area, effectively dispersing the stress concentrated at the top, and improving the overall stability.

[0041] In related technologies, the sidewall does not include the curved section, and the interface between the roof and the sidewall is closer to the rail surface, resulting in a wider roof. This typically requires more roof panels to splice the roof, leaving more weld seams. However, in this embodiment, because the sidewall has an arc-shaped apex section 121, the weld seam connecting the sidewall and the roof is moved upward, making the surface of the sidewall panel 200 in the arc-shaped area at the top of the sidewall smoother, reducing exposed seams, and improving the overall smoothness.

[0042] Therefore, in this embodiment of the side wall structure, by setting an arc-shaped section 121 on the longitudinal beam 120 at the top of the side wall frame 100, the cross-sectional area of ​​the arc-shaped section 121 gradually increases in the direction away from the middle of the longitudinal beam 120, which is beneficial to improving the structural strength of the transition area between the side and top of the train, thereby improving the structural strength of the entire side wall structure. As a result, even with a reduction in the thickness of each beam of the side wall frame 100, it still has good structural strength, so as to meet the requirements of both lightweight and high strength.

[0043] It can be understood that the longitudinal beam 120 is a beam in the longitudinal direction of the side wall frame 100, and it can be composed of beams of different lengths. For example, at the window of the side wall, the longitudinal beam 120 is not set at the window frame of the side wall frame 100, that is, short longitudinal beams are set on both the upper and lower sides of the window frame; while in the longitudinal direction of the side wall frame 100, if there is no window frame, a long longitudinal beam can be set from the top to the bottom of the side wall frame 100.

[0044] In an optional embodiment, the side wall frame 100 further includes a support beam 130 arranged in the transverse direction. The support beam 130 is connected to the arc-shaped top section 121 of the longitudinal beam 120, and the support beam 130 is located on the side of the arc-shaped top section 121 near the side wall panel 200.

[0045] The support beam 130 is arranged in the transverse direction to support the top area of ​​the large side wall, that is, to enhance the rigidity of the transition area between the side and the top of the train. The support beam 130 is connected to the arc-shaped top section 121 of the longitudinal beam 120 to ensure that the support beam 130 can effectively transfer and disperse the stress in the top area and improve the stability of the overall structure.

[0046] Meanwhile, the support beam 130 also provides an installation position for the side wall panel 200 in the area of ​​the arc apex section 121, further improving the installation stability of the side wall panel 200.

[0047] In one optional embodiment, the support beam 130 includes a connecting portion, and the arc-shaped apex section 121 is provided with a card interface 1211 on the side facing the support beam 130, and the connecting portion is disposed within the card interface 1211.

[0048] The longitudinal beam 120, at its arc apex 121, has a locking interface 1211 on the side facing the support beam 130. The shape and size of the locking interface 1211 match the connecting part, enabling it to securely accommodate and fix the connecting part. The design of the locking interface 1211 takes into account stress distribution and ease of installation, ensuring that the connecting part can be accurately and quickly positioned and fixed within the locking interface 1211. The connecting part and the locking interface 1211 can be connected using welding-free or minimally welding methods, such as bolt connection, riveting, or snap-fit ​​connection.

[0049] For example, the support beam 130 is a curved angle iron. The support beam 130 includes a straight part that is bent relative to each other and a snap-fit ​​part. The straight part is arranged laterally on the outside of the arc apex section 121, and the snap-fit ​​part is snapped into the snap-fit ​​interface 1211.

[0050] Please see Figure 2 and Figure 4 In an optional embodiment, the side wall frame 100 further includes a top beam 140, which is arranged laterally on top of the arc-shaped top section 121 and covers the top of the arc-shaped top section 121.

[0051] The top beam 140 is arranged laterally on top of the arc-shaped apex section 121 and completely covers the top of the arc-shaped apex section 121. On the one hand, the top beam 140 can provide installation space for the roof, which helps to reduce the difficulty of roof installation; on the other hand, the top beam 140 can further provide longitudinal structural support for the side wall frame 100, thereby further improving the structural strength of the side wall frame 100 and the overall side wall structure.

[0052] Meanwhile, the top beam 140 and the support beam 130 work together in the top area of ​​the side wall. The support beam 130 mainly bears the lateral stress, while the top beam 140 provides longitudinal support. The synergistic effect of the two helps to improve the overall stiffness and stability of the side wall structure.

[0053] In one alternative embodiment, the top beam 140 includes a first side 141 and a second side 142;

[0054] The first side 141 is located on the side of the top beam 140 near the side wall panel 200. The first side 141 extends to the top of the arc-shaped section 121 and extends along the length of the arc-shaped section 121.

[0055] The second side 142 is located on the side of the top beam 140 away from the side wall panel 200. The second side 142 extends to the top of the arc-shaped section 121 and bends towards the thickness direction of the top beam 140.

[0056] The first side 141 extends along the length of the arc apex section 121, allowing it to directly cover and support the weld connection area between the roof and the side wall, effectively dispersing the stress generated during welding and preventing deformation or cracks in the weld area. Simultaneously, the extended design of the first side 141 increases the contact area between the top beam 140 and the side wall plate 200, improving the stability of the connection.

[0057] Meanwhile, both the first side 141 and the second side 142 are bent in the thickness direction of the top beam 140, which helps to improve the structural strength of the top beam 140.

[0058] In one alternative embodiment, the longitudinal beam 120 includes a first flange 122 and a second flange 123 located in its width direction, the first flange 122 being bent toward one side in the thickness direction of the longitudinal beam 120, and the second flange 123 being bent toward the other side in the thickness direction of the longitudinal beam 120.

[0059] The first flange 122 and the second flange 123 of the longitudinal beam 120 are bent toward different sides in the thickness direction of the longitudinal beam 120, which enhances the strength and stability of the longitudinal beam 120.

[0060] Meanwhile, the first flange 122 and the second flange 123 also provide additional contact area and fixing points for connection with components such as the roof and side walls, making the connection more stable.

[0061] Furthermore, to increase the overall rigidity of the longitudinal beam, local stamping reinforcement was applied to its bent edges.

[0062] In one alternative embodiment, the longitudinal beam 120 includes a reinforcing section 124 located at the bottom of the side wall frame 100, the cross-sectional area of ​​the reinforcing section 124 gradually increasing in the direction away from the middle of the longitudinal beam 120.

[0063] Because the cross-sectional area of ​​the reinforcing section 124 gradually increases in the direction away from the middle of the longitudinal beam 120, it helps to enhance the structural strength of the bottom of the side wall frame 100, enabling the reinforcing section 124 to better withstand stress from above and the sides, disperse stress concentration, and reduce the risk of deformation. At the same time, the gradually increasing cross-sectional area also enhances the connection strength between the longitudinal beam 120 and the side wall frame 100, improving the overall structural stability.

[0064] In one alternative embodiment, the longitudinal beam 120 is provided with weight-reducing holes 125 spaced apart along its length.

[0065] The weight-reducing hole 125 can effectively reduce the weight of the longitudinal beam 120 while avoiding excessive impact on the strength and stability of the structure. The shape of the weight-reducing hole 125 can be adjusted according to actual needs, but it should be ensured that it does not negatively affect the overall performance of the structure. For example, the shape of the weight-reducing hole 125 can be triangular, circular, elliptical, rectangular, etc.

[0066] For example, the weight-reducing hole 125 of the longitudinal beam can be set as a triangle according to the layout requirements of pipelines such as electrical braking (generally only the conduit is run through the crossbeam). Compared with the traditional oblong hole, it is more conducive to improving the stability of the column and preventing instability.

[0067] In one alternative embodiment, the weight-reducing hole 125 of the arc apex segment 121 is a circular hole, which has a uniform stress distribution, thus helping to maintain the strength and stability of the arc apex segment 121.

[0068] Please see Figure 5 In one optional embodiment, in response to the problem of condensation accumulating easily on the traditional side wall window lower beam, the lower side beam 110 of the side wall frame 100 is a type B beam with a bending angle greater than 90 degrees. In related technologies, beams are usually bent at 90 degrees. However, compared with the 90 degrees in related technologies, the beam in this embodiment can form an inclined surface, thereby facilitating the drainage of condensation accumulated on the lower side wall window lower beam 110.

[0069] Please see Figure 6 In one optional embodiment, the side wall frame 100 has a door frame 300, which is enclosed by longitudinal beams 120 and cross beams 110. A connecting plate 310 is provided on the longitudinal beams 120 for connecting with the train door. In this way, the door can be indirectly connected to the longitudinal beams 120 or the cross beams 110 through the connecting plate 310. By adjusting the size of the connecting plate 310, the installation position of the door can be adapted, thereby avoiding installation accuracy problems caused by manufacturing errors of the side wall frame 100.

[0070] This application also provides a train, including a car body and a side wall structure as described in any of the above embodiments, the side wall structure being disposed on the car body. It is understood that the train of this embodiment possesses the beneficial effects of any of the above embodiments, therefore, further details will not be provided.

[0071] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0072] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A sidewall structure, characterized in that, Includes a side wall frame (100) and a side wall panel (200) disposed on the side wall frame (100), the side wall frame (100) comprising: A crossbeam (110) is provided in a transverse direction; The longitudinal beam (120) is arranged longitudinally and is connected to the cross beam (110). The longitudinal beam (120) includes an arc-shaped section (121) located at the top of the side wall frame (100). The cross-sectional area of ​​the arc-shaped section (121) gradually increases in the direction away from the middle of the longitudinal beam (120).

2. The sidewall structure according to claim 1, characterized in that, The side wall frame (100) also includes a support beam (130) arranged in the transverse direction. The support beam (130) is connected to the arc-shaped top section (121) of the longitudinal beam (120), and the support beam (130) is located on the side of the arc-shaped top section (121) close to the side wall panel (200).

3. The sidewall structure according to claim 2, characterized in that, The support beam (130) includes a connecting part, and the arc-shaped apex section (121) is provided with a card interface (1211) on the side facing the support beam (130), and the connecting part is disposed in the card interface (1211).

4. The sidewall structure according to claim 1, characterized in that, The side wall frame (100) also includes a top beam (140), which is arranged laterally on the top of the arc-shaped section (121) and covers the top of the arc-shaped section (121).

5. The sidewall structure according to claim 4, characterized in that, The top beam (140) includes: The first side (141) is located on the side of the top beam (140) near the side wall plate (200), the first side (141) extends out of the top of the arc-shaped section (121), and the first side (141) extends along the length direction of the arc-shaped section (121); The second side (142) is located on the side of the top beam (140) away from the side wall panel (200). The second side (142) extends out of the top of the arc-shaped section (121) and bends toward the thickness direction of the top beam (140).

6. The sidewall structure according to any one of claims 1 to 5, characterized in that, The longitudinal beam (120) includes a first flange (122) and a second flange (123) located in its width direction. The first flange (122) is bent toward one side in the thickness direction of the longitudinal beam (120), and the second flange (123) is bent toward the other side in the thickness direction of the longitudinal beam (120).

7. The sidewall structure according to claim 6, characterized in that, The longitudinal beam (120) includes a reinforcing section (124) located at the bottom of the side wall frame (100), and the cross-sectional area of ​​the reinforcing section (124) gradually increases in the direction away from the middle of the longitudinal beam (120).

8. The sidewall structure according to claim 6, characterized in that, The longitudinal beam (120) is provided with weight-reducing holes (125) at intervals along its length.

9. The sidewall structure according to claim 8, characterized in that, The weight-reducing hole (125) of the arc apex section (121) is a round hole.

10. A train, characterized in that, It includes a vehicle body and a side wall structure as described in any one of claims 1 to 9, wherein the side wall structure is disposed on the vehicle body.

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