Folding shed assembly, through channel structure and vehicle

Abstract

The invention provides a folding shed assembly, a through channel structure and a vehicle, and relates to the technical field of rail transit. The folding shed assembly comprises a folding shed framework, folding shed cloth and a filling material, the folding shed framework comprises a plurality of frames which are movably connected in sequence, the folding shed cloth comprises inner-layer shed cloth, outer-layer shed cloth and buffer fluid, the inner-layer shed cloth surrounds the outer side of the folding shed framework, a filling cavity is defined by the inner-layer shed cloth and the frames, and the filling material is arranged in the filling cavity. The outer-layer shed cloth surrounds the outer peripheral side of the inner-layer shed cloth, an interlayer cavity is defined between the outer-layer shed cloth and the inner-layer shed cloth, the buffer fluid filler is filled in the interlayer cavity, and the filling material comprises at least one of a honeycomb core or foamed aluminum and is filled in each filling cavity. The folding shed assembly has good buffering and damping performance, and the stability and comfort of the rail transit vehicle in the running process can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of rail transit, and more specifically, relates to a folding canopy assembly, a through-passage structure, and a vehicle. Background Technology

[0002] With the rapid development of urban clusters and the urgent needs of urbanization in China, rail transit is becoming increasingly widespread. In rail vehicles, adjacent carriages are connected by a passageway. This passageway, as a crucial component connecting the various carriages, not only serves as a passageway for passengers to move between carriages but also provides sound insulation and dust protection. In existing technologies, fully enclosed folding canopy passageways are simple in structure, easy to maintain, and perform well, but their energy absorption is insufficient, and safety needs improvement. Summary of the Invention

[0003] The purpose of this application is to provide a folding canopy assembly, a through-passage structure, and a vehicle to address the shortcomings of poor energy absorption in existing folding canopy assemblies.

[0004] To achieve the above objectives, in a first aspect, this application provides a folding canopy assembly, comprising: The folding frame consists of multiple frames that are sequentially and movably connected. The folding tent fabric includes an inner tent fabric, an outer tent fabric, and a buffer fluid. The inner tent fabric surrounds the outside of the folding tent frame, and the inner tent fabric and each of the frames enclose a filling cavity. The outer tent fabric surrounds the outer periphery of the inner tent fabric, and the outer tent fabric and the inner tent fabric enclose a sandwich cavity. The buffer fluid filler is filled in the sandwich cavity. A filling material, including at least one of honeycomb core or aluminum foam, is filled into each of the filling cavities.

[0005] In some embodiments of the first aspect, the buffer fluid includes a non-Newtonian fluid, which includes at least one of a mixture of an absorbent resin and water in a mass ratio of 1:5 to 1:20 or a mixture of a copolymer and water in a mass ratio of 1:8 to 1:15.

[0006] In some embodiments of the first aspect, the water-absorbing resin includes at least one of sodium polyacrylate and potassium polyacrylate, and the copolymer includes at least one of acrylic acid-acrylamide copolymer and acrylic acid-acrylate copolymer.

[0007] In some embodiments of the first aspect, the number of the interlayer cavities is multiple, and the interlayer cavities and the filling cavities are arranged alternately.

[0008] In some embodiments of the first aspect, the folded tent fabric further includes a plurality of interlayered tent fabrics, which are spaced apart between the inner tent fabric and the outer tent fabric, and the interlayered tent fabrics, together with the inner tent fabric and the outer tent fabric, together form a plurality of interlayered cavities.

[0009] Secondly, embodiments of this application also provide a through-channel structure, including: The folding shed assembly as described in the first aspect and any of its embodiments; Two windshield components are respectively disposed on both sides of the folding canopy component; Multiple protective plate assemblies are arranged around the inner periphery of the folding frame and together enclose the inner side of the folding frame to form a channel; A pedal assembly is disposed on one of the guard plate assemblies located at the bottom of the channel.

[0010] In some embodiments of the second aspect, the windshield assembly includes: The windshield base frame is connected to the folding canopy frame on one side; A windshield frame is disposed on the side of the windshield base frame facing away from the folding canopy frame; A windshield support frame is disposed on the side of the windshield frame facing away from the windshield base frame; Windshield skin, covering the windshield support frame; Two base frame telescopic mechanisms are located on the upper and lower sides of the windshield base frame, respectively. The base frame telescopic mechanisms are located between the windshield frame and the windshield base frame, so that the windshield frame can move toward or away from the windshield base frame. Multiple boot telescopic mechanisms are disposed between the windshield frame and the windshield base frame, and are arranged at intervals along the extension direction of the windshield base frame, so that the windshield frame can move relative to the windshield base frame in an extension direction perpendicular to the channel.

[0011] In some embodiments of the second aspect, one of the guard plate assemblies is a top guard plate assembly or a transition plate assembly, and includes: Two side beams are spaced apart and positioned on the inner side of the folding frame; Two first guard plates are respectively disposed on each of the side beams, and the two first connecting plates are located on the inner side of the two side beams; The second guard plate is disposed between the two side beams, and both of the first guard plates slide against the surface of the second guard plate; The linkage mechanism includes at least two sets of connecting rods, each set of connecting rods being connected between each of the side beams and the second guard plate; each connecting rod set includes at least two symmetrically arranged connecting rods, one end of each connecting rod being hinged to the side beam, and the other end being provided with a rotatable pin, the pin being slidably connected to the second guard plate so that the side beam and the second guard plate can slide relative to each other.

[0012] In some embodiments of the second aspect, at least one of the guard plate assemblies is a side guard plate assembly and includes: A middle guard plate is vertically installed on the inner side of the channel; At least one side guard plate is disposed on one side of the intermediate guard plate in the channel extension direction and is slidably connected to the intermediate guard plate; The mounting plate is located below the side guard plate and is connected to the folding frame.

[0013] Thirdly, this application also provides a vehicle including the through-passage structure described in the first aspect and any of its embodiments.

[0014] The beneficial effects of the through passage and vehicle provided in this application are as follows: Compared with the prior art, the folding canopy assembly effectively absorbs impact energy during emergency braking or collision by combining the filling cavity of honeycomb core or foam aluminum with non-Newtonian fluid buffer fluid. At the same time, through the alternating arrangement of multiple cavities and the adaptive telescopic mechanism, the adjustment flexibility of buffer performance and structural stability are improved. This solves the problems of insufficient energy absorption, single buffer material and inflexible adjustment of guard plate in existing through passages, and has the advantages of improved safety and adaptability to complex motion conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of the through-passage structure in an exemplary embodiment of this application; Figure 2 This is an internal structural diagram of the through-channel structure in an exemplary embodiment of this application; Figure 3 This is a structural diagram of the folding canopy assembly with a through-channel structure in an exemplary embodiment of this application; Figure 4 This is a cross-sectional view of the folding canopy assembly with a through-channel structure in an exemplary embodiment of this application; Figure 5This is a partial cross-sectional view of the through-passage structure in an exemplary embodiment of this application; Figure 6 This is a structural diagram of the top cover plate assembly of the through-channel structure in an exemplary embodiment of this application; Figure 7 This is a structural diagram of the side guard plate assembly of the through-channel structure in an exemplary embodiment of this application; Figure 8 This is a structural diagram of the ramp assembly of the through-channel structure in an exemplary embodiment of this application; Figure 9 This is an external structural diagram of a windshield assembly with a through-channel structure in an exemplary embodiment of this application; Figure 10 This is an internal structural diagram of a windshield assembly with a through-channel structure in an exemplary embodiment of this application; Figure 11 This is a diagram showing the arrangement of the boot telescopic device and the base frame telescopic device in the windshield assembly of the through-passage structure in an exemplary embodiment of this application.

[0017] The following are the labeling elements in the figure: 1-Folding tent assembly; 11-Folding tent fabric; 12-Folding tent frame; 111-Inner layer fabric; 112-Outer layer fabric; 113-Interlayer fabric; 114-Buffer fluid; 13-Filling material; 2-Windshield assembly; 21-Windshield skin; 22-Windshield base frame; 23-Windshield frame; 24-Base frame telescopic mechanism; 25-Boot telescopic mechanism; 26-Windshield support frame; 3-Top guard plate assembly; 31-Top side beam; 32-First top side guard plate; 33-Second top side guard plate; 34-Top side linkage mechanism; 4-Side guard plate assembly; 41-Middle guard plate; 42-Side guard plate; 43-Mounting plate; 5-Step; 6-Transfer plate assembly; 61-Bottom side beam; 62-First bottom side guard plate; 63-Second bottom side guard plate; 64-Bottom side linkage mechanism. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 limitations on this application.

[0021] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] This application provides a through-passage structure for connecting two adjacent carriages. (Refer to...) Figure 1 and Figure 2 The through-passage structure provided in this application embodiment includes a canopy assembly 1 and two windshield assemblies 2. The canopy assembly 1 is disposed between two adjacent carriages to form a passage for passengers to pass through, and serves to provide sound insulation, dust prevention, and buffering and energy absorption. The two windshield assemblies 2 are located on both sides of the canopy assembly 1 and are connected to the canopy frame 12 to close the two ends of the passage, prevent external debris from entering, and enhance the stability of the overall structure.

[0023] Reference Figures 3-5 The folding tent assembly 1 includes a folding tent frame 12, a folding tent fabric 11, and a filling material 13. The folding tent frame 12 includes a plurality of frames connected sequentially. The folding tent fabric 11 includes an inner fabric 111, an outer fabric 112, and a buffer fluid 114. The inner fabric 111 surrounds the outside of the folding tent frame 12, forming a filling cavity between the inner fabric 111 and each frame. The outer fabric 112 surrounds the outer periphery of the inner fabric 111, forming a sandwich cavity between the outer fabric 112 and the inner fabric 111. The buffer fluid 114 fills the sandwich cavity. The filling material 13 includes at least one of honeycomb core or aluminum foam and fills each filling cavity.

[0024] The folding canopy frame 12 is the main supporting structure of the folding canopy assembly 1. It forms internal channels and is used to cover the folding canopy fabric 11 on the outside. The frames of the folding canopy frame 12 are connected in a movable manner, allowing the entire folding canopy assembly 1 to maintain structural stability while possessing a certain degree of flexibility and deformability. The frame shape can be rectangular, trapezoidal, or other geometric shapes suitable for the connection requirements of rail trains, so as to adapt to stress changes in different directions during train operation and effectively disperse and absorb impact forces. In one example, the frame is a rectangular structure, and adjacent frames are connected movably by hinges or elastic connectors.

[0025] The outer protective structure of the folding canopy assembly 1 has an inner canopy fabric 111 covering the outside of the folding canopy frame 12 and connected and fixed to the outer periphery of each frame by means of bonding, riveting, or snap fasteners. Each frame may have an annular groove on its outer periphery, allowing the inner canopy fabric 111 to partially enclose the annular groove to form a filling cavity, providing space for the filling material 13. An outer canopy fabric 112 covers the outside of the inner canopy fabric 111 and can be connected and fixed to the inner canopy fabric 111 by means of sewing, bonding, riveting, or heat sealing. At least a portion of the inner and outer canopy fabrics 111 are not connected to each other, allowing these portions to be spaced apart, thus forming a sealed sandwich cavity structure. The buffer fluid 114 filling the sandwich cavity can absorb and disperse impact energy through fluid flow and deformation when subjected to external pressure during train operation, thereby improving the buffering performance of the folding canopy assembly 1. The inner layer tarpaulin 111 and the outer layer tarpaulin 112 can be made of high-strength fiber cloth, rubber cloth, or composite materials with elasticity and wear resistance.

[0026] The filling material 13 is made of lightweight, high-strength materials such as honeycomb core or aluminum foam. These materials not only have excellent energy absorption characteristics but also reduce overall weight while maintaining structural strength. The honeycomb core material is composed of multiple hexagonal honeycomb units, each of which can independently withstand and distribute pressure, forming a highly efficient energy absorption network. The aluminum foam material achieves energy dissipation and absorption through its porous structure, while also possessing good sound insulation and heat insulation properties.

[0027] Specifically, when a vehicle experiences a longitudinal impact, the canopy frame 12 absorbs initial kinetic energy through plastic deformation caused by the relative movement between the frames. The honeycomb core or aluminum foam within the filling cavities undergoes compressive deformation during the frame deformation process, further dissipating energy through the collapse of the material's internal pore structure. The buffer fluid 114 within the sandwich cavities flows under pressure, converting impact energy into the fluid's internal and kinetic energy, thus achieving shock absorption and cushioning. The synergistic effect of the inner canopy fabric 111 and the filling material 13 forms the first level of buffering, while the cooperation of the outer canopy fabric 112 and the buffer fluid 114 constitutes the second level of buffering, forming a graded energy absorption mechanism. Under lateral vibration conditions, the multi-layer canopy structure attenuates vibration energy through the deformation phase difference of different materials.

[0028] Through the above technical solutions, this application effectively improves the energy absorption efficiency of the through-channel structure and avoids tearing failure of the canopy layer under sudden impact conditions. The multi-level buffering mechanism reduces stress concentration and extends the service life of the structure. The coordinated deformation of the filling material 13 and the canopy layer achieves a balance between energy absorption and structural stiffness, enhancing the overall impact resistance while ensuring the airtightness of the channel.

[0029] In some embodiments, the buffer fluid 114 may include a non-Newtonian fluid, which is a fluid whose viscosity changes under the action of external force. When subjected to a large impact force, it will exhibit a significant thickening effect, forming a high-viscosity buffer fluid 114 to absorb energy, while maintaining a low viscosity under normal operating conditions to ensure the flexibility of the canopy layer to adapt to the vibration and deformation requirements during train movement.

[0030] In one example, the non-Newtonian fluid may include a mixture of absorbent resin and water in a mass ratio of 1:5 to 1:20. The absorbent resin is a polymer material with high absorbency and water retention. When mixed with water, the resulting non-Newtonian fluid rapidly absorbs water and swells upon impact, causing a sharp increase in fluid viscosity, thereby effectively absorbing and dispersing impact energy. This non-Newtonian fluid not only has good cushioning properties but also maintains a low viscosity under normal operating conditions, ensuring the flexibility and adaptability of the folding tent fabric 11. Optionally, the absorbent resin may include at least one of sodium polyacrylate and potassium polyacrylate.

[0031] In another example, the non-Newtonian fluid may include a mixture of a copolymer and water in a mass ratio of 1:8 to 1:15. The copolymer is a polymeric material copolymerized from two or more different monomers. When mixed with water to form a non-Newtonian fluid, it can also increase the fluid viscosity through the extension and entanglement of molecular chains upon impact, thus acting as a buffer and absorbing energy. Optionally, the copolymer may include at least one of a copolymer of acrylic acid and acrylamide, or a graft copolymer of starch and sodium acrylate.

[0032] Through the above technical solutions, this application can significantly improve the buffering performance of the folding canopy assembly 1 under complex working conditions, avoid structural damage caused by impact, and extend the service life of the buffer fluid 114 through the self-healing characteristics of the fluid, thus meeting the safety and reliability requirements of the rail vehicle through passage.

[0033] In some embodiments, there may be multiple interlayer cavities, with the interlayer cavities and the filling cavities arranged alternately. Alternating arrangement means that the interlayer cavities and the filling cavities are distributed alternately along the extension direction of the folded frame 12.

[0034] Specifically, in the extending direction of the folded frame 12, multiple sandwich cavities and filled cavities are arranged alternately. The sandwich cavities are filled with a buffer fluid 114, such as a non-Newtonian fluid, while the filled cavities are filled with honeycomb core or aluminum foam. When an external impact force is applied to the folded frame assembly 1, the alternating sandwich cavities and filled cavities work synergistically. The buffer fluid 114 in the sandwich cavities absorbs the impact energy through a shear thickening effect, while the honeycomb core or aluminum foam in the filled cavities further dissipates energy through structural deformation. Simultaneously, the alternating arrangement avoids stress concentration that might occur when a single type of cavity is continuously distributed, resulting in a more uniform energy absorption process.

[0035] Through the above technical solution, this application can improve the energy absorption capacity of the folding canopy assembly 1 when subjected to impact, reduce the transmission of impact force to the interior of the carriage, and thus enhance the safety of the through-passage structure. The alternating arrangement of sandwich cavities and filled cavities also enables the folding canopy assembly 1 to have better deformation coordination during compression or tension, avoiding failure of local structures due to excessive deformation.

[0036] In some embodiments, the folded tent fabric 11 further includes a plurality of interlayered tent fabrics 113, which are spaced apart between the inner tent fabric 111 and the outer tent fabric 112, and the interlayered tent fabrics 113 together with the inner tent fabric 111 and the outer tent fabric 112 form a plurality of interlayered cavities.

[0037] The interlayer fabric 113 refers to the additional fabric layer disposed between the inner fabric 111 and the outer fabric 112. The material of the interlayer fabric 113 can be the same as that of the inner and outer fabrics 111, and the interlayer fabric 113 can be connected and fixed to the inner and outer fabrics 111 by sewing, bonding, riveting, or heat sealing. Multiple interlayer fabrics 113, spaced apart, are distributed at a certain interval between the inner and outer fabrics 111, forming multiple independent interlayer cavities. Specifically, multiple interlayered canopies 113 are arranged in parallel between the inner canopy 111 and the outer canopy 112, with a cavity formed between every two adjacent interlayered canopies 113. A filling cavity is formed between the inner canopy 111 and the innermost interlayered canopy 113, into which a filling material 13 is injected to provide rigid support. The alternating arrangement of interlayered cavities and filling cavities ensures that the buffer fluid 114 filling material is uniformly distributed within the interlayered cavities, thereby absorbing energy through the shear thickening effect of the non-Newtonian fluid upon impact.

[0038] Through the above technical solution, this application can effectively improve the buffering performance of the passageway under dynamic load, disperse the impact energy through the alternating arrangement of multiple cavities, and enhance the overall structural stability of the canopy assembly 1, thereby ensuring the safety of passengers passing between carriages.

[0039] Reference Figure 9 , Figure 10 and Figure 11 In some embodiments, the windshield assembly 2 may include: a windshield base frame 22, a windshield skeleton 23, a windshield support frame 26, a windshield skin 21, two base frame telescopic mechanisms 24, and multiple boot telescopic mechanisms 25. One side of the windshield base frame 22 is connected to the folding frame 12, and the windshield skeleton 23 is disposed on the side of the windshield base frame 22 facing away from the folding frame 12. There may be two windshield skeletons 23, symmetrically arranged on the windshield base frame 22. The windshield support frame 26 is disposed on the side of the windshield skeleton 23 facing away from the windshield base frame 22. The windshield skin 21 covers the windshield support frame 26. The two base frame telescopic mechanisms 24 are located on the upper and lower sides of the windshield base frame 22, respectively, between the windshield skeleton 23 and the windshield base frame 22, allowing the windshield skeleton 23 to move towards or away from the windshield base frame 22. Multiple boot telescopic mechanisms 25 are disposed between the windshield frame 23 and the windshield base frame 22 and are arranged at intervals along the extension direction of the windshield base frame 22, so that the windshield frame can move relative to the windshield base frame in an extension direction perpendicular to the channel.

[0040] Among them, the windshield base frame 22, as the basic support part of the windshield assembly 2, is of paramount importance in terms of structural strength and stability. It not only needs to bear the weight of the windshield frame 23 and related components, but also needs to withstand various external impacts during train operation. The windshield frame 23 is symmetrically arranged on the windshield base frame 22, providing a reliable support frame for the windshield skin 21, ensuring that the windshield skin 21 can cover the outside flatly and firmly, playing a good protective and sealing role.

[0041] The windshield support frame 26 is located on the side of the windshield frame 23 facing away from the windshield base frame 22, further enhancing the structural rigidity of the windshield frame 23 and providing more uniform support for the windshield skin 21, preventing dents or deformation of the windshield skin 21 during long-term use. The windshield skin 21 covers the windshield support frame 26, and its material is usually selected with high strength, wear resistance, and good sealing performance to effectively prevent external dust, rainwater, and other debris from entering the passageway, while reducing wind resistance during train operation.

[0042] Two underframe telescopic mechanisms 24 are located on the upper and lower sides of the windshield underframe, respectively, and are situated between the windshield frame 23 and the windshield underframe 22. This design allows the windshield frame 23 to move towards or away from the windshield underframe 22 under the action of the underframe telescopic mechanisms 24. When the train passes over curved tracks or undergoes telescopic deformation, the underframe telescopic mechanisms 24 can adjust the position of the windshield frame 23 to ensure a tight connection between the windshield assembly 2 and the carriage, preventing gaps that could lead to a decrease in sealing performance.

[0043] Multiple boot-shaped telescopic mechanisms 25 are disposed between the windshield frame 23 and the windshield base frame 22, and are spaced apart along the extension direction of the windshield base frame 22. These boot-shaped telescopic mechanisms 25 enable the windshield frame to move relative to the windshield base frame in an extension direction perpendicular to the passageway. When the train experiences lateral vibration or displacement during operation, the boot-shaped telescopic mechanisms 25 can buffer and absorb this energy, ensuring that the windshield assembly 2 always maintains a stable structural shape, providing passengers with a safe and comfortable passage environment.

[0044] In some embodiments, the through-channel structure may further include multiple guard plate assemblies, which are arranged around the inner periphery of the folding frame 12 and together enclose the inside of the folding frame 12 to form a channel. The number of guard plate assemblies may be matched based on the inner shape of each frame in the folding frame 12. In one example, the frame is a rectangular frame, and the number of guard plate assemblies may be four, which are respectively arranged on the four inner sides of the rectangular frame and tightly connected to the folding frame 12 to form a continuous and smooth inner wall of the channel.

[0045] In some embodiments, the guard plate assembly may be a top guard plate assembly 3 or a ramp assembly 6, and includes two side beams, two first guard plates, a second guard plate, and a linkage mechanism. The two side beams are spaced apart and disposed inside the folding frame 12. Two first guard plates are respectively disposed on each side beam, and two first connecting plates are located inside the two side beams. A second guard plate is disposed between the two side beams, and both first guard plates slide against the surface of the second guard plate. The linkage mechanism includes at least two sets of connecting rods, each set connecting between each side beam and the second guard plate. Each connecting rod set includes at least two symmetrically arranged connecting rods, one end of which is hinged to the side beam, and the other end is provided with a rotatable pin. The pin is slidably connected to the second guard plate, allowing the side beams and the second guard plate to slide relative to each other.

[0046] Specifically, refer to Figure 6 The protective plate assembly can be a top protective plate assembly 3, which is located on the inner top of the folding frame 12. The top protective plate assembly 3 may include two top side beams 31, two first top side protective plates 32, a second top side protective plate 33, and a top side linkage mechanism 34. The two top side beams 31 are spaced apart and located on the inner top of the folding frame 12, providing a stable support frame for the entire top protective plate assembly 3. The two first top side protective plates 32 are respectively fixed to each top side beam 31 and extend towards the interior of the passage. The second top side protective plate 33 is disposed between the two top side beams 31 and slides against the two first top side protective plates 32, allowing the second top side protective plate 33 to adaptively slide according to the relative movement of the carriages during train operation, thereby maintaining the continuity and smoothness of the passage's inner wall. The top-side linkage mechanism 34 includes at least two sets of top-side connecting rods. Each set of top-side connecting rods is connected between each top-side side beam 31 and the second top-side guard plate 33. Each set of top-side connecting rods includes at least two symmetrically arranged connecting rods. One end of the connecting rod is hinged to the top-side side beam 31, and the other end is slidably connected to the second top-side guard plate 33 through a rotatable pin. This structure allows the top-side side beam 31 and the second top-side guard plate 33 to slide relative to each other, while ensuring the stability and reliability of the connection. It effectively disperses and absorbs the vibration and impact forces generated during train operation, further improving the safety and comfort of the through-passage structure.

[0047] Reference Figure 8The protective plate assembly can be a transition plate assembly 6, which is located on the inner bottom side of the folding frame 12. The transition plate assembly 6 may include two bottom side beams 61, two first bottom side protective plates 62, a second bottom side protective plate 63, and a bottom side linkage mechanism 64. The two bottom side beams 61 are spaced apart and located on the inner bottom of the folding frame 12, providing a stable supporting foundation for the transition plate assembly 6. The two first bottom side protective plates 62 are respectively installed on each bottom side beam 61 and extend into the passageway, forming the basic frame of the transition plate assembly 6 together with the bottom side beams 61. The second bottom side protective plate 63 is located between the two bottom side beams 61 and slides with the two first bottom side protective plates 62, ensuring that the second bottom side protective plate 63 can slide flexibly with the relative movement of the carriages during train operation, maintaining the flatness and smoothness of the passageway's inner wall. The bottom-side linkage mechanism 64 includes at least two sets of bottom-side connecting rods. Each set of bottom-side connecting rods is connected between each bottom-side side beam 61 and the second bottom-side guard plate 63. Each set of bottom-side connecting rods also includes at least two symmetrically arranged connecting rods. One end of the connecting rod is hinged to the bottom-side side beam 61, and the other end is slidably connected to the second bottom-side guard plate 63 through a rotatable pin. This allows the bottom-side side beam 61 and the second bottom-side guard plate 63 to slide relative to each other, while maintaining a stable and reliable connection. This effectively disperses and absorbs vibrations and impacts during train operation, enhancing the stability of the through-passage structure and improving passenger comfort.

[0048] Furthermore, the passageway structure may also include a step 5, which is positioned above the ramp assembly 6 and provides a smooth passage surface for passengers. The step 5 may be made of a non-slip material, such as rubber or a metal plate with a non-slip texture, to ensure passenger safety during passage and prevent slipping and falls.

[0049] Reference Figure 7 In some embodiments, the guard plate assembly can also be a side guard plate assembly 4. There can be two side guard plate assemblies 4, respectively positioned on the inner sides of the left and right sides of the folding frame 12. The side guard plate assembly 4 may include a middle guard plate 41, two side guard plates 42, and two mounting plates 43. The two mounting plates 43 are respectively fixed to the inner sides of the left and right sides of the folding frame 12, providing a stable mounting base for the side guard plate assembly 4. The two side guard plates 42 are symmetrically arranged on both sides of the middle guard plate 41, with one end of each side guard plate 42 fixedly connected to the corresponding mounting plate 43, and the other end extending into the passageway, together with the middle guard plate 41 to form a side guard structure. The middle guard plate 41 is located between the two side guard plates 42, and its surface can be set to a smooth or slightly curved shape to accommodate the relative movement of the carriages during train operation, while maintaining the continuity and aesthetics of the passageway's inner wall.

[0050] The side guard plate assembly 4 is tightly connected to the canopy frame 12 via the mounting plate 43, ensuring that it can stably withstand and disperse the impact force from the side during train operation. At the same time, the cooperative design of the side guard plate 42 and the middle guard plate 41 allows the inner wall of the passage to deform to a certain extent when it is compressed, thereby absorbing and dispersing energy and further improving the safety of the through passage structure.

[0051] Secondly, this application provides a vehicle comprising a through-passage structure and at least two carriages, the through-passage structure being disposed between two adjacent carriages. Specifically, the vehicle can be a subway vehicle, an intercity train, a high-speed train, or other rail vehicle requiring a through-passage structure. By employing the aforementioned through-passage structure, the vehicle can effectively absorb and disperse multidimensional displacement and impact forces generated between carriages during vehicle operation, especially when turning, changing lanes, or traversing uneven tracks. The canopy assembly 1, the guard plate assembly, and the windshield assembly 2 in the through-passage structure work together to ensure the sealing and stability of the passageway and the safety and comfort of passenger passage.

[0052] When relative movement occurs between the carriages during vehicle operation, the folding canopy assembly 1 absorbs and dissipates impact energy through its alternating sandwich cavities and filled cavities, reducing the transmission of impact force into the carriage interior. The protective plate assembly adapts to the expansion and contraction deformation of the folding canopy frame 12 through a sliding connection mechanism, maintaining the geometric stability of the passage and avoiding poor deformation adaptability and structural damage caused by rigid connections. The windshield assembly 2 achieves connection with the carriage and displacement compensation through the underframe telescopic mechanism 24 and the boot telescopic mechanism 25, coping with multidimensional displacement between carriages and preventing seal failure.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A folding canopy assembly, characterized in that, include: The folding frame consists of multiple frames that are sequentially and movably connected. The folding tent fabric includes an inner tent fabric, an outer tent fabric, and a buffer fluid. The inner tent fabric surrounds the outside of the folding tent frame, and the inner tent fabric and each of the frames enclose a filling cavity. The outer tent fabric surrounds the outer periphery of the inner tent fabric, and the outer tent fabric and the inner tent fabric enclose a sandwich cavity. The buffer fluid filler is filled in the sandwich cavity. A filling material, including at least one of honeycomb core or aluminum foam, is filled into each of the filling cavities.

2. The folding canopy assembly according to claim 1, characterized in that, The buffer fluid includes a non-Newtonian fluid, which includes at least one of the following: a mixture of water-absorbing resin and water in a mass ratio of 1:5 to 1:20, or a mixture of copolymer and water in a mass ratio of 1:8 to 1:

15.

3. The folding canopy assembly according to claim 2, characterized in that, The water-absorbing resin includes at least one of sodium polyacrylate and potassium polyacrylate, and the copolymer includes at least one of acrylic acid and acrylamide copolymer and acrylic acid and acrylate copolymer.

4. The folding canopy assembly according to claim 1, characterized in that, The number of the interlayer cavities is multiple, and the interlayer cavities and the filling cavities are arranged alternately.

5. The folding canopy assembly according to claim 4, characterized in that, The folding tent fabric also includes multiple interlayered tent fabrics, which are spaced apart between the inner tent fabric and the outer tent fabric, and the interlayered tent fabrics, together with the inner tent fabric and the outer tent fabric, together form multiple interlayered cavities.

6. A through-passage structure, characterized in that, include: The folding frame assembly as described in any one of claims 1-5; Two windshield components are respectively disposed on both sides of the folding canopy component; Multiple protective plate assemblies are arranged around the inner periphery of the folding frame and together enclose the inner side of the folding frame to form a channel; A pedal assembly is disposed on one of the guard plate assemblies located at the bottom of the channel.

7. The through-channel structure according to claim 6, characterized in that, The windshield assembly includes: The windshield base frame is connected to the folding canopy frame on one side; A windshield frame is disposed on the side of the windshield base frame facing away from the folding canopy frame; A windshield support frame is disposed on the side of the windshield frame facing away from the windshield base frame; Windshield skin, covering the windshield support frame; Two base frame telescopic mechanisms are located on the upper and lower sides of the windshield base frame, respectively. The base frame telescopic mechanisms are located between the windshield frame and the windshield base frame, so that the windshield frame can move toward or away from the windshield base frame. Multiple boot telescopic mechanisms are disposed between the windshield frame and the windshield base frame, and are arranged at intervals along the extension direction of the windshield base frame, so that the windshield frame can move relative to the windshield base frame in an extension direction perpendicular to the channel.

8. The through-channel structure according to claim 6, characterized in that, One of the aforementioned guard plate assemblies is a top guard plate assembly or a transition plate assembly, and includes: Two side beams are spaced apart and positioned on the inner side of the folding frame; Two first guard plates are respectively disposed on each of the side beams, and the two first connecting plates are located on the inner side of the two side beams; The second guard plate is disposed between the two side beams, and both of the first guard plates slide against the surface of the second guard plate; The linkage mechanism includes at least two sets of connecting rods, each set of connecting rods being connected between each of the side beams and the second guard plate; each connecting rod set includes at least two symmetrically arranged connecting rods, one end of each connecting rod being hinged to the side beam, and the other end being provided with a rotatable pin, the pin being slidably connected to the second guard plate so that the side beam and the second guard plate can slide relative to each other.

9. The through-channel structure according to claim 6, characterized in that, At least one of the said guard plate assemblies is a side guard plate assembly, and includes: A middle guard plate is vertically installed on the inner side of the channel; At least one side guard plate is disposed on one side of the intermediate guard plate in the channel extension direction and is slidably connected to the intermediate guard plate; The mounting plate is located below the side guard plate and is connected to the folding frame.

10. A vehicle, characterized in that, It includes a passageway structure as described in any one of claims 6-9 and at least two carriages, the passageway structure being disposed between two adjacent carriages.

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