Passenger room top plate for railway vehicle, in-built structure of railway vehicle and railway vehicle

Abstract

The embodiment of the invention provides a passenger room top plate for a railway vehicle, a railway vehicle interior structure and the railway vehicle. The passenger room top plate comprises a hanging beam foundation, a top plate sectional material, a lamp strip sectional material, a middle top plate and side top plates. One end of the hanging beam foundation is integrated with a vehicle body air supply duct, is hung on the roof of a vehicle body and provides a mounting interface for a top plate profile; the lamp strip sectional material is directly integrated on an air supply duct of a vehicle body and used for installing a lamp strip and providing illumination in the vehicle. The side top plates are detachably and fixedly connected with the top plate profiles, so that disassembly and maintenance are facilitated; the middle top plate covers the top plate in the central area, one side of the middle top plate is hinged to the lamp strip profiles, and the other side of the middle top plate is detachably and fixedly connected with the lamp strip profiles on the corresponding side, so that the middle top plate can be rotationally opened and closed in the longitudinal direction of the vehicle body, and an air supply duct and other internal devices are conveniently maintained and overhauled; the hanging beam foundation is directly integrated on the vehicle body air supply duct, a firm supporting structure is provided, and the stability of the whole top plate system is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of rail vehicle roofs, and in particular to a passenger compartment roof for a rail vehicle, an interior structure of a rail vehicle, and a rail vehicle. Background Art

[0002] The roof panel of a railway passenger car is a crucial component of its interior design. Combined with other interior components, it provides passengers with a comfortable travel environment. It also serves as a carrier for various other functional devices, such as air vents, lighting, fire detectors, and cameras. A well-designed roof panel structure not only improves its safety and assembly processability, but also creates a comfortable environment for passengers. Therefore, the design quality of the roof panel installation significantly impacts the quality of a passenger car's interior.

[0003] Existing passenger compartment ceiling panels utilize a serial plug-in structure, where each panel is installed based on the previous one. The panels are interconnected, making it difficult to remove each one individually. This serial structure complicates subsequent maintenance work. To inspect a central ceiling panel or a component embedded within one, such as an air conditioning duct, the panels must be disassembled one by one from back to front, wasting time, manpower, and costs. This is detrimental to efficient loading and fails to meet the requirements for efficient maintenance and troubleshooting of modern railway passenger cars. Summary of the Invention

[0004] The embodiments of the present application provide a passenger compartment roof for a rail vehicle, a rail vehicle interior structure, and a rail vehicle to solve the problem that the serial plug-in structure of the existing roof is inconvenient for maintenance and cannot be efficiently loaded.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A passenger compartment roof for a rail vehicle, comprising:

[0007] Multiple lifting beam foundations are integrated on both sides of the vehicle body air supply duct for lifting with the roof of the vehicle body;

[0008] A top plate profile extending in the longitudinal direction of the vehicle body and located at the bottom of the suspension beam foundations on both sides in the transverse direction, wherein the top plate profile is detachably fixedly connected to any of the suspension beam foundations;

[0009] A light strip profile extending in the longitudinal direction of the vehicle body and being detachably fixedly connected to the roof profile, the light strip profile being used for installing the light strip;

[0010] A side roof panel extending longitudinally along the vehicle body, one lateral side of the side roof panel being detachably fixedly connected to the roof panel profile, and the other side being used for mounting a luggage rack;

[0011] The middle top plate extends along the longitudinal direction of the vehicle body and is located below the vehicle body air supply duct; one lateral side of the middle top plate is hinged to the light strip profile on the corresponding side, and the other side is detachably fixedly connected to the light strip profile on the corresponding side, so that the middle top plate can rotate around the longitudinal direction of the vehicle body to open and close.

[0012] Optionally, the top plate profile includes:

[0013] A top plate profile body, wherein a first sliding mounting cavity is provided at the top of the top plate profile body, the first sliding mounting cavity has a top opening, and the first sliding mounting cavity longitudinally penetrates the top plate profile body; the first sliding mounting cavity is used to be fixed to the hanging beam foundation via threaded fasteners;

[0014] The top plate profile body is provided with a side top plate mounting portion extending laterally away from the vehicle body air supply duct, and the bottom of the top plate profile body is provided with a second sliding mounting cavity, the second sliding mounting cavity has a bottom opening, and the second sliding mounting cavity passes through the top plate profile body longitudinally; the second sliding mounting cavity is used to be fixed to the light strip profile via threaded fasteners.

[0015] Optionally, the cross-section of the top plate profile body is rectangular, and a bottom edge of the cross-section of the top plate profile body is provided with a downwardly opening groove to form the second sliding installation cavity;

[0016] The top edge of the cross-section of the top plate profile body is strip-shaped and protrudes from the side edge of the cross-section of the top plate profile body along the width direction. The top edge is provided with a card groove opening upward to form a first sliding mounting cavity. The inner top edge of the strip-shaped top edge extends outward along the outer top edge protruding laterally from the strip-shaped top edge to form the side top plate mounting portion.

[0017] Optionally, the cross-section of the light strip profile is L-shaped, including a first mounting surface and a second mounting surface, the first mounting surface is used to cover the side top plate mounting portion, and the second mounting surface is provided with a light strip mounting portion for mounting the light strip;

[0018] A closed cavity with an L-shaped cross section is provided on the back side of the second mounting surface, wherein the long side of the L-shaped closed cavity extends in a direction perpendicular to the second mounting surface, and a light strip profile mounting hole is provided on the long side of the L-shaped closed cavity that passes through in the thickness direction;

[0019] A middle top plate mounting portion is provided on the front side of the second mounting surface, and the middle top plate mounting portion includes a middle top plate mounting slot, a middle top plate mounting plate and a hinged connection portion arranged in sequence from back to front;

[0020] The front end of the middle top plate mounting slot is opened;

[0021] The middle top plate mounting plate is located on the lower side wall of the middle top plate mounting slot and extends forward;

[0022] The hinged connection portion is located at the front end of the middle top plate mounting plate and extends forward a preset distance, then extends downward and is provided with a hook at the bottom end thereof that bends upward and backward;

[0023] A rotating connection piece is provided on one lateral side of the middle top plate. The rotating connection piece is located in the hook and can rotate around the hook.

[0024] Optionally, a recessed mounting hole is provided on the middle top plate mounting plate of the light strip profile that is detachably fixedly connected to the middle top plate;

[0025] A light strip profile mounting seat is provided on the other lateral side of the middle top plate, and the light strip profile mounting seat is located in the yield mounting hole; the bottom of the light strip profile mounting seat is fixed to the middle top plate via threaded fasteners, and the side of the light strip profile mounting seat is fixed to the middle top plate mounting slot via threaded fasteners.

[0026] Optionally, a set of limiting edges are provided on the side walls of the middle top plate mounting slot relative to each other, and the limiting edges and the front wall of the middle top plate mounting slot limit the movement of the threaded fastener along the slot depth direction;

[0027] The middle top plate mounting plate is a closed cavity with an L-shaped cross-section. The L-shaped closed cavity of the middle top plate mounting plate includes a top wall, side walls, and two parallel upper L-shaped walls and a lower L-shaped wall; the top wall and the side walls of the middle top plate mounting slot are integrally arranged; the front end of the upper L-shaped wall protrudes from the front end of the lower L-shaped wall, and the side wall is connected to the front end of the upper L-shaped wall obliquely upward from the front end of the lower L-shaped wall.

[0028] Optionally, the main body of the profile cross-section of the rotating connector is an inverted T-shape, the horizontal side of the inverted T-shaped profile cross-section of the rotating connector is fixed to the middle top plate, the vertical side of the inverted T-shaped profile cross-section is recessed inward along the horizontal direction, and the circular cross-section extending downward from the top end of the vertical side is a rotating shaft, and the rotating shaft rotates around it in the curved hook.

[0029] Optionally, the side walls of the L-shaped closed cavity of the middle top plate mounting plate, the bottom wall of the hinged connection portion and the hook form a rotation cavity;

[0030] A first limiting rib, a second limiting rib and a third limiting rib are respectively provided on the vertical sides of the inverted T-shaped profile section, wherein the first limiting rib is located in the middle of the vertical side of the inverted T-shaped profile section and is arranged toward the side wall of the L-shaped closed cavity of the middle top plate mounting plate;

[0031] The second limiting rib is located at the vertex of the vertical side of the inverted T-shaped profile section and is arranged toward the bottom wall of the hinged connection portion;

[0032] The third limiting edge is located at a downwardly extending portion of the top end of the vertical edge and is arranged toward the hook.

[0033] Optionally, a middle top retaining seam assembly is further included, which is located at both longitudinal ends of the middle top plate and extends along the transverse direction of the middle top plate; the middle top retaining seam assembly includes:

[0034] A middle top baffle plate and two baffle plate mounting seats located at the lateral ends of the middle top baffle plate, the top ends of the baffle plate mounting seats are fixed to the second sliding mounting cavity via threaded fasteners; the bottom ends of the baffle plate mounting seats are detachably fixed to the middle top baffle plate.

[0035] Optionally, the bottoms of the side top plates at the longitudinal head end and the longitudinal tail end are respectively provided with partition wall mounting portions extending outward in the longitudinal direction;

[0036] The partition wall mounting portion includes a longitudinal connecting plate and a partition wall mounting plate. The longitudinal connecting plate extends outwardly along the longitudinal direction of the side top plate, and the partition wall mounting plate is located on the outer side of the longitudinal connecting plate in the transverse direction.

[0037] Optionally, the hanging beam foundation comprises:

[0038] The C-shaped mounting frame includes a top plate, a bottom plate, and side plates, wherein the side plates are located between the top plate and the bottom plate; the top plate is provided with a first strip hole arranged in a transverse direction for detachably fixing to the C-shaped groove of the roof of the vehicle body; the bottom plate is provided with a second strip hole arranged in a transverse direction, and the second strip hole is fixed to the first sliding mounting cavity via a threaded fastener;

[0039] and a reinforcing rib plate, wherein the reinforcing rib plate is located on one side in the width direction of the C-shaped mounting frame and is respectively fixed to the top plate, the bottom plate and the side plates.

[0040] The present application also provides a rail vehicle interior structure, comprising a plurality of vehicle body air supply ducts arranged longitudinally along the vehicle body and a passenger compartment roof for a rail vehicle as described in any one of the above embodiments;

[0041] A plurality of hanging beam foundations of the passenger compartment roof of the rail vehicle are respectively integrated on both lateral sides of any of the vehicle body air supply ducts.

[0042] The present application also provides a rail vehicle, comprising a driver's cab and the rail vehicle interior structure described in the above embodiment.

[0043] The passenger compartment roof for a rail vehicle provided in an embodiment of the present application includes a plurality of beam foundations, which are respectively integrated on both sides of the vehicle body air supply duct for hoisting with the roof of the vehicle body; a roof panel profile, which extends longitudinally along the vehicle body and is respectively located at the bottom of each beam foundation on both sides of the transverse direction, and the roof panel profile is detachably fixedly connected to any beam foundation; a light strip profile, which extends longitudinally along the vehicle body and is detachably fixedly connected to the roof panel profile, and the light strip profile is used for installing a light strip; a side roof panel, which extends longitudinally along the vehicle body, and one side of the side roof panel is detachably fixedly connected to the roof panel profile, and the other side is used for installing a luggage rack; a middle roof panel, which extends longitudinally along the vehicle body and is located below the vehicle body air supply duct; one side of the middle roof panel is hinged to the light strip profile on the corresponding side, and the other side is detachably fixedly connected to the light strip profile on the corresponding side, so that the middle roof panel can rotate and open around the longitudinal direction of the vehicle body.

[0044] Compared with the prior art, the rail vehicle passenger compartment roof provided in the embodiments of the present application has the following technical effects:

[0045] The above-mentioned passenger compartment roof includes a hanging beam foundation, a roof panel profile, a light strip profile, a middle roof panel and a side roof panel; one end of the hanging beam foundation is integrated with the vehicle body air supply duct and can be hoisted to the roof of the vehicle body to provide an installation interface for the roof panel profile; it is directly integrated into the vehicle body air supply duct, reducing additional installation steps and improving installation efficiency; the roof panel profile is located at the bottom of the hanging beam foundation, providing the main roof panel support and installation platform; the light strip profile is used to install the light strip to provide interior lighting; the side roof panels are detachably fixedly connected to the roof panel profile for easy disassembly and maintenance; the middle roof panel provides the roof panel coverage of the central area, one side of which is hinged to the light strip profile and the other side is detachably fixedly connected to the light strip profile on the corresponding side, so that the middle roof panel can be rotated around the longitudinal direction of the vehicle body to open and close, facilitating maintenance and inspection of the air supply duct and other internal settings;

[0046] Each of the above structures utilizes removable fixed connections for quick installation and removal, reducing construction time and costs. The hinged design of the center roof panel allows maintenance personnel to open the panel for inspection and repair of the air ducts and other equipment, improving maintenance efficiency. The hanging beam foundation is directly integrated into the vehicle body's air ducts, providing a sturdy support structure and enhancing the stability of the entire roof system. The side roof panels not only provide roof coverage but also reserve space for luggage racks, fully utilizing the interior space. Through the rational layout and design of the components, the interior space is maximized, providing a comfortable passenger experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0048] Figure 1A schematic structural diagram of a passenger compartment roof for a rail vehicle provided in an embodiment of the present application;

[0049] Figure 2 A schematic cross-sectional view of a passenger compartment roof for a rail vehicle provided in an embodiment of the present application;

[0050] Figure 3 A schematic structural diagram of a roof profile provided in an embodiment of the present application;

[0051] Figure 4 A schematic structural diagram of a light strip profile from a first perspective provided in an embodiment of the present application;

[0052] Figure 5 A schematic structural diagram of a light strip profile from a second perspective provided in an embodiment of the present application;

[0053] Figure 6 A schematic structural diagram of the light strip profile provided in an embodiment of the present application from a third perspective;

[0054] Figure 7 A schematic structural diagram of a rotating connector provided in an embodiment of the present application;

[0055] Figure 8 A schematic diagram of the installation structure of the middle top retaining gap assembly provided in an embodiment of the present application;

[0056] Figure 9 A schematic diagram of the structure of the side top plate provided in an embodiment of the present application;

[0057] Figure 10 A schematic structural diagram of a hanging beam foundation provided in an embodiment of the present application;

[0058] Figure 11 A schematic structural diagram of a driver's cab provided in an embodiment of the present application;

[0059] Figure 12 Schematic diagram of the steel structure of the driver's cab provided for this application;

[0060] Figure 13 A schematic structural diagram of the front wall provided in an embodiment of the present application;

[0061] Figure 14 A schematic diagram of the structure of the front wall mainboard provided in an embodiment of the present application;

[0062] Figure 15 Schematic diagram of the cross-sectional structure of the front wall mainboard provided in an embodiment of the present application; wherein (a) is a schematic diagram of the cross-sectional structure at AA in the middle, and (b) is a schematic diagram of the enlarged local structure at V in (a);

[0063] Figure 16 A schematic diagram of a plate-beam structure provided in an embodiment of the present application;

[0064] Figure 17 for Figure 16 A magnified schematic diagram of the local structure at point Ⅰ in the middle;

[0065] Figure 18 A schematic diagram of a top view of the steel structure of the driver's cab provided in an embodiment of the present application;

[0066] Figure 19 for Figure 18 AA-axis cross-sectional structural diagram;

[0067] Figure 20 A schematic diagram of the structure of the anti-collision column provided in an embodiment of the present application;

[0068] Figure 21 A schematic diagram of the structure of the side wall provided in an embodiment of the present application;

[0069] Figure 22 A schematic structural diagram of a sidewall structure provided in another embodiment of the present application;

[0070] Figure 23 for Figure 18 AA cross-sectional structural diagram;

[0071] Figure 24 for Figure 18 BB-direction cross-sectional structural diagram;

[0072] Figure 25 Schematic diagram of the assembly of the front wall and side wall components provided in an embodiment of the present application;

[0073] Figure 26 for Figure 25 A schematic diagram of the partially enlarged structure at center A;

[0074] Figure 27 A schematic diagram of the lateral structure of the driver's cab steel structure provided in an embodiment of the present application;

[0075] Figure 28 A schematic diagram of the assembly structure of the rear end wall and end columns provided in an embodiment of the present application;

[0076] Figure 29 for Figure 28 A magnified schematic diagram of the local structure;

[0077] Figure 30 A schematic diagram of the structure of the rear end wall provided in an embodiment of the present application;

[0078] Figure 31 This is an enlarged schematic diagram of the local structure of the top curved beam provided in an embodiment of the present application;

[0079] Figure 32A schematic diagram of the assembly structure of the cab head cover and end columns provided in an embodiment of the present application;

[0080] Figure 33 A schematic diagram of the assembly structure of the end column and the passenger compartment provided in an embodiment of the present application;

[0081] The following are marked in the accompanying drawings:

[0082] Driver's cab 100;

[0083] Driver's cab steel structure 10, driver's cab head cover 20;

[0084] The front wall is composed of 11, the rear end wall is composed of 12, the side wall is composed of 13, the waist beam is composed of 14, the energy absorbing beam is composed of 15, the anti-collision column is composed of 16, the anti-collision corner column is composed of 17, and the roof curved beam is composed of 18;

[0085] Front wall 111, front wall main plate 1111, plate beam structure 1112, front wall reinforcement plate 1113, brake pipe installation interface 1114, electric whistle and bagpipe installation interface 1115, front wall crossbeam 11121, front wall longitudinal beam 11122, transverse reinforcement beam 11123, opening and closing mechanism installation interface 11131, hood installation interface 11132, first surface 111211, second surface 111212;

[0086] Top curved beam 121, rear end wall frame 122, rear end wall door frame 123, rear end wall cross beam 124, head cover end interface 1211, passenger compartment top area interface 1212;

[0087] Side wall frame 131, side wall skin 132, side wall curved beam 1311, end column 1312, support beam 1313, grid beam structure 1314, corner window installation interface 1315, side window installation interface 1316, transverse reinforcement beam 1317, reinforcement plate 1318, side wall patch 1319, installation flange 13121, support pad 13131;

[0088] Horizontal waist beam 141, vertical rib 1411, longitudinal waist beam 142;

[0089] Transverse ribs 161 and connecting ribs 162;

[0090] Passenger compartment side wall skin 21, passenger compartment side wall frame 22;

[0091] Car body air supply duct 92200;

[0092] Hanging beam foundation 921, top plate profile 922, light strip profile 923, side top plate 924, middle top plate 925, middle top retaining joint assembly 926;

[0093] C-shaped mounting frame 9211, reinforcing rib plate 9212;

[0094] Top plate profile body 9221, first sliding mounting cavity 9222, side top plate mounting portion 9223, second sliding mounting cavity 9224;

[0095] First mounting surface 9231, second mounting surface 9232, light strip profile mounting hole 9233, middle top plate mounting slot 9234, limiting overlap 92341, middle top plate mounting plate 9235, hinged connection portion 9236, hook 92361, and clearance mounting hole 92351;

[0096] Partition mounting portion 9241, longitudinal connecting plate 92411, partition mounting plate 92412;

[0097] Rotating connector 9251, light strip profile mounting base 9252, horizontal edge 92511, vertical edge 92512, rotating shaft 92513, first limiting rib 925121, second limiting rib 925122, third limiting rib 925123;

[0098] Middle top seam blocking plate 9261 and seam blocking plate mounting seat 9262. DETAILED DESCRIPTION

[0099] The embodiments of the present invention disclose a passenger compartment roof for a rail vehicle, a rail vehicle interior structure and a rail vehicle, so as to solve the problems that the serial plug-in structure of the existing roof is inconvenient for maintenance and cannot be efficiently loaded.

[0100] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0101] See also Figure 1-10 , Figure 1 A schematic structural diagram of a passenger compartment roof for a rail vehicle provided in an embodiment of the present application; Figure 2 A schematic cross-sectional view of a passenger compartment roof for a rail vehicle provided in an embodiment of the present application; Figure 3 A schematic structural diagram of a roof profile provided in an embodiment of the present application; Figure 4 A schematic structural diagram of a light strip profile from a first perspective provided in an embodiment of the present application; Figure 5 A schematic structural diagram of a light strip profile from a second perspective provided in an embodiment of the present application; Figure 6 A schematic structural diagram of the light strip profile provided in an embodiment of the present application from a third perspective; Figure 7 A schematic structural diagram of a rotating connector provided in an embodiment of the present application; Figure 8A schematic diagram of the installation structure of the middle top retaining gap assembly provided in an embodiment of the present application; Figure 9 A schematic diagram of the structure of the side top plate provided in an embodiment of the present application; Figure 10 A schematic structural diagram of a hanging beam foundation provided in an embodiment of the present application;

[0102] In a specific embodiment, the passenger compartment roof for a rail vehicle provided in the present application includes a hanging beam foundation 921, a roof panel profile 922, a light strip profile 923, a side roof panel 924 and a middle roof panel 925; the hanging beam foundation 921 is integrated on both lateral sides of the vehicle body air supply duct 92200. It can be understood that the vehicle body air supply duct 92200 extends longitudinally along the vehicle body and can be set to several numbers, and each vehicle body air supply duct 92200 is arranged longitudinally along the vehicle body; each vehicle body air supply duct 92200 is respectively provided with several hanging beam foundations 921 on both lateral sides, and the hanging beam foundation 921 is integrated with the vehicle body air supply duct 92200, which reduces additional installation steps and improves installation efficiency; the upper end of the hanging beam foundation 921 is hoisted to the roof of the vehicle body, specifically by setting a C-shaped groove on the vehicle body, and hoisting with the vehicle body is achieved through the C-shaped groove, which serves as the basic support structure of the roof system to enhance the stability of the entire roof system.

[0103] The top plate profile 922 is respectively arranged on both sides of the vehicle body air supply duct 92200, and extends along the longitudinal direction of the vehicle body, and is located at the bottom of the hanging beam foundation 921 on the corresponding side. The top plate profile 922 is detachably fixedly connected to at least one hanging beam foundation 921. Preferably, the top plate profile 922 is located at the bottom of the hanging beam foundation 921, and the top plate profile 922 is fixed to any hanging beam foundation 921 by threaded fasteners, which is convenient for disassembly and maintenance; the top plate profile 922 can be made of lightweight and high-strength material to reduce weight and ensure structural strength. The light strip profile 923 extends along the longitudinal direction of the vehicle body and is also located on both lateral sides of the vehicle body air supply duct 92200. It is detachably fixedly connected to the top plate profile 922 on the corresponding side, such as by bolts or other fasteners, to facilitate the removal and replacement of the light strip; the side top plate 924 extends along the longitudinal direction of the vehicle body, and one lateral side of the side top plate 924 is detachably fixedly connected to the top plate profile 922 to facilitate disassembly and maintenance; the other side is used to install a luggage rack, and mounting holes are reserved for the luggage room to facilitate the installation and adjustment of the luggage rack.

[0104] The middle top plate 925 extends longitudinally along the vehicle body and is located below the vehicle body air supply duct 92200 to provide top plate coverage for the central area; one lateral side of the middle top plate 925 is hinged to the light strip profile 923 on the corresponding side, and the other side is detachably fixed to the light strip profile 923 on the corresponding side, so that the middle top plate 925 can be rotated and opened and closed around the longitudinal direction of the vehicle body, which is convenient for maintenance and inspection; through the combination of hinges and detachable fixings, the middle top plate 925 can be conveniently opened and closed, which facilitates the maintenance of the air supply duct and other internal facilities.

[0105] Compared with the prior art, the rail vehicle passenger compartment roof provided in the embodiments of the present application has the following technical effects:

[0106] The passenger compartment roof comprises a hanging beam foundation 921, a roof profile 922, a light strip profile 923, a middle roof panel 925 and a side roof panel 924; one end of the hanging beam foundation 921 is integrated with the vehicle body air supply duct 92200 and can be hoisted with the roof of the vehicle body to provide an installation interface for the roof profile 922; it is directly integrated with the vehicle body air supply duct 92200, reducing additional installation steps and improving installation efficiency; the roof profile 922 is located at the bottom of the hanging beam foundation 921, providing the main roof The light strip profile 923 is used to install the light strip to provide interior lighting; the side roof panel 924 is detachably fixedly connected to the roof panel profile 922 to facilitate disassembly and maintenance; the middle roof panel 925 provides roof coverage for the central area, one side of which is hinged to the light strip profile 923, and the other side is detachably fixedly connected to the light strip profile 923 on the corresponding side, so that the middle roof panel 925 can be rotated and opened and closed around the longitudinal direction of the vehicle body, which is convenient for maintenance and inspection of the air supply duct and other internal settings.

[0107] Each of the above structures utilizes removable fixed connections for quick installation and removal, reducing construction time and costs. The hinged design of the center roof panel 925 facilitates maintenance personnel's opening for inspection and repair of the air duct and other equipment, improving maintenance efficiency. The hanging beam foundation 921 is directly integrated into the vehicle body air duct 92200, providing a sturdy support structure and enhancing the stability of the entire roof system. The side roof panels 924 not only provide roof coverage but also reserve space for luggage racks, fully utilizing the interior space. Through the rational layout and design of the components, the interior space is maximized, providing a comfortable passenger experience.

[0108] Specifically, the top plate profile 922 is described. The top plate profile 922 includes a top plate profile body 9221. A first sliding mounting cavity 9222 is provided at the top of the top plate profile body 9221. The first sliding mounting cavity 9222 has a top opening and extends longitudinally through the top plate profile body 9221. The first sliding mounting cavity 9222 is used to be fixed to the suspension beam foundation 921 via threaded fasteners. The first sliding mounting cavity 9222 extends longitudinally through the top plate profile body 9221 and has a top opening, facilitating the sliding of the threaded fasteners within the first sliding mounting cavity 9222. The first sliding mounting cavity 9222 can be configured as a C-shaped groove, allowing the assembly to be flexibly adjusted in the longitudinal direction, making the installation process more flexible and convenient. An adjustment pad can be provided between the first sliding mounting cavity 9222 and the suspension beam foundation 921 to provide adjustment for the installation of the side top plate 924.

[0109] The top panel profile body 9221 is provided with a side top panel mounting portion 9223 extending laterally away from the vehicle body air supply duct 92200. A second sliding mounting cavity 9224 is provided at the bottom of the top panel profile body 9221. The second sliding mounting cavity 9224 has an open bottom and extends longitudinally through the top panel profile body 9221. The second sliding mounting cavity 9224 is used to secure the light strip profile 923 via threaded fasteners. The side top panel mounting portion 9223 is provided with mounting holes for the side top panel 924, facilitating a removable connection to the side top panel 924, such as with threaded fasteners. The second sliding mounting cavity 9224 is located at the bottom of the top panel profile body 9221 and is secured to the light strip profile 923 via threaded fasteners. It is understood that two first and second sliding mounting cavities 9222 and 9224 can be provided, each arranged laterally, to enhance connection strength and improve system stability. The structure of the second sliding installation cavity 9224 can be set with reference to the first sliding installation cavity 9222. For example, it can also be set as a C-shaped groove, allowing its position to be flexibly adjusted in the longitudinal direction, further making the installation process more flexible and convenient.

[0110] It can be understood that the design of the first sliding mounting cavity 9222 and the second sliding mounting cavity 9224 allows the components to be flexibly adjusted in the longitudinal direction, making the installation process more flexible and convenient; and the sliding mounting cavity runs through the entire top plate profile body 9221 in the longitudinal direction, ensuring uniform and stable installation throughout the entire length range to avoid local stress concentration. The first sliding mounting cavity 9222 with a top opening and the second sliding mounting cavity 9224 with a bottom opening facilitate installation operations from the upper and lower directions, respectively, simplifying the construction process. The top plate profile 922 is fixed to the suspension beam foundation 921 and the light strip profile 923 by threaded fasteners (such as bolts), providing a firm and reliable connection method to ensure the stability of the entire structure.

[0111] In one embodiment, the cross-section of the top plate profile body 9221 is rectangular, and the bottom edge of the cross-section of the top plate profile body 9221 is provided with a card groove with an opening facing downward to form a second sliding mounting cavity 9224; the top edge of the cross-section of the top plate profile body 9221 is strip-shaped, and protrudes from the side edge of the cross-section of the top plate profile body 9221 along the width direction, and the top edge is provided with a card groove with an opening facing upward to form a first sliding mounting cavity 9222, and the inner top edge of the strip-shaped top edge protrudes from the outer top edge of the strip-shaped top edge and extends outward laterally to form a side top plate mounting portion 9223.

[0112] The main cross-section of the top plate profile body 9221 is rectangular, providing a sturdy foundation that effectively disperses stress and enhances the overall strength and stability of the structure. Two downward-facing slots are positioned horizontally along the bottom edge of the top plate profile body 9221, forming two side-by-side second sliding mounting cavities 9224. Two side-by-side slots are positioned horizontally along the top edge of the top plate profile body 9221, forming two first sliding mounting cavities 9222, further enhancing the secure connection. The top edge of the cross-section of the top plate profile body 9221 is strip-shaped. It can be understood that the top edge includes an outer top edge and an inner top edge. At the same time, two C-shaped grooves are provided between the outer top edge and the inner top edge. The inner top edge is the bottom of the groove, and the outer top edge is provided with a notch of the groove. The side edges of the two C-shaped grooves serve as reinforcement ribs between the outer top edge and the inner top edge. The lateral side of the inner top edge is connected to the side edge of the C-shaped groove on that side, and is not connected to the side edge of the cross-section of the top plate profile body 9221 on that side; the outer top edge is connected to the side edge of the cross-section of the top plate profile body 9221 on that side.

[0113] The inner top edge of the strip top edge protrudes from the outer top edge of the strip top edge and extends laterally outward to form a side top plate mounting portion 9223, providing an additional mounting plane, which not only enhances the structural strength of the top plate profile 922, but also provides a stable installation foundation for the side top plate 924, increases the flexibility and stability of the installation of the side top plate 924; simplifies the installation and disassembly process of the side top plate 924, and facilitates maintenance and replacement.

[0114] In another embodiment, the cross-section of the light strip profile 923 is L-shaped, including a first mounting surface 9231 and a second mounting surface 9232. The first mounting surface 9231 is used to shield the top plate mounting portion 9223, and the second mounting surface 9232 is provided with a light strip mounting portion for mounting the light strip.

[0115] A closed cavity with an L-shaped cross section is provided on the back side of the second mounting surface 9232. The long side of the L-shaped closed cavity extends perpendicular to the second mounting surface 9232. The long side of the L-shaped closed cavity is provided with a light strip profile mounting hole 9233 that passes through the long side of the L-shaped closed cavity in the thickness direction.

[0116] A middle top plate 925 mounting portion is provided on the front side of the second mounting surface 9232. The middle top plate 925 mounting portion includes a middle top plate mounting slot 9234 with a front opening, a middle top plate mounting plate 9235, and a hinged connection portion 9236.

[0117] The middle top plate mounting plate 9235 is located on the lower side wall of the middle top plate mounting slot 9234 and extends forward;

[0118] The hinged connection portion 9236 is located at the front end of the middle top plate mounting plate 9235 and extends forward a predetermined distance, then extends downward and has a hook 92361 at the bottom end that bends upward and inward.

[0119] A rotatable connector 9251 is provided on one lateral side of the middle top plate 925 . The rotatable connector 9251 is located in the hook 92361 and can rotate around it.

[0120] The first mounting surface 9231 is used to shield the connection between the side top plate mounting portion 9223 and the side top plate 924. The first mounting surface 9231 is preferably a horizontal surface, and the second mounting surface 9232 is preferably a vertical surface. The connection between the first mounting surface 9231 and the second mounting surface 9232 is formed by a chamfered right angle. It can be understood that the side of the second mounting surface 9232 closer to the first mounting surface 9231 along the thickness direction is the front, and the side farther away from the first mounting surface 9231 is the rear. The front of the second mounting surface 9232 is used to mount the light strip mounting portion. The light strip mounting portion specifically comprises a plurality of light strip mounting holes arranged longitudinally in front of the second mounting surface 9232. A closed cavity with an L-shaped cross-section is provided at the bottom of the back side of the second mounting surface 9232. The outer wall of the short side of the L-shaped closed cavity is coplanar with the back side of the second mounting surface 9232. The long side of the L-shaped closed cavity extends outward perpendicular to the direction of the second mounting surface 9232. The long side of the L-shaped closed cavity is provided with a light strip profile mounting hole 9233 that passes through along the thickness direction. The light strip profile mounting hole 9233 cooperates with the second sliding mounting cavity 9224. The light strip profile mounting hole 9233 is a strip hole that extends in a direction perpendicular to the second mounting surface 9232 to allow the component to be flexibly adjusted in the lateral direction. There are two light strip profile mounting holes 9233, which are staggered in the longitudinal direction to optimize the profile installation space.

[0121] The front side of the second mounting surface 9232 is provided with a mounting portion for the center top plate 925, providing additional support and fixing points to enhance the stability of the center top plate 925. The center top plate 925 mounting portion comprises an open center top plate mounting slot 9234, a center top plate mounting plate 9235, and a hinged connection portion 9236. The center top plate mounting slot 9234 is open at the front and preferably configured as a C-shaped slot. The center top plate mounting plate 9235 is located on the lower sidewall of the center top plate mounting slot 9234, extending forward and protruding from the front wall of the center top plate mounting slot 9234. The center top plate mounting plate 9235 is configured for removable fixed connection to the center top plate 925. The hinged connection portion 9236 is located at the front end of the center top plate mounting plate 9235 and extends forward a predetermined distance. It then extends downward and has a hook 92361 at its bottom end that bends upward and rearward. The "rearward bend" here refers to the rearward side of the extension direction of the hinged connection portion 9236.

[0122] Correspondingly, a rotating connecting piece 9251 is provided on the lateral side of the middle top plate 925, which is located in the curved hook 92361 and can rotate around it to realize the opening and closing function of the middle top plate 925. The combined design of the middle top plate mounting slot 9234, the middle top plate mounting plate 9235 and the hinged connection part 9236 provides multi-point support, thereby enhancing the stability and safety of the middle top plate 925.

[0123] It can be understood that one lateral side of the middle top plate 925 is hinged to the light strip profile 923 on that side, and the other lateral side of the middle top plate 925 is detachably fixedly connected to the light strip profile 923 on that side, and a middle top plate mounting plate 9235 of the light strip profile 923 detachably fixedly connected to the middle top plate 925 is provided with a clearance mounting hole 92351, and the clearance mounting hole 92351 is set to be rectangular for easy production and processing; the clearance mounting hole 92351 passes through the middle top plate mounting plate 9235 along the thickness direction, and the middle top plate 925 is located below the middle top plate mounting plate 9235. It can be understood that one lateral side of the middle top plate 925 is provided with a rotating connecting piece 9251, and the other lateral side of the middle top plate 925 is provided with a light strip profile mounting seat 9252, and the light strip profile mounting seat 9252 is provided along The light strip profile mounting base 9252 is vertically positioned in the recessed mounting hole 92351. The bottom of the light strip profile mounting base 9252 is secured to the middle top plate 925 via threaded fasteners, while the side of the light strip profile mounting base 9252 is secured to the middle top plate mounting slot 9234 via threaded fasteners. The light strip profile mounting base 9252 is an L-shaped mounting base, with reinforcing ribs 9212 positioned opposite each other in the width direction of the L-shaped mounting base. The horizontal plate of the L-shaped mounting base is provided with through-holes. The bottom plate is seated on the middle top plate 925 and secured to the middle top plate 925 via threaded fasteners and through-holes. The vertical plate of the L-shaped mounting base is provided with strip holes to facilitate alignment with the middle top plate mounting slot 9234. The strip holes extend vertically, and the vertical plate is secured to the middle top plate mounting slot 9234 via the strip holes and threaded fasteners. The threaded fasteners can be screws, bolts, or other threaded structures, and can be configured as needed.

[0124] Specifically, a set of limiting overlaps 92341 are provided on the side walls of the middle top plate mounting slot 9234, which are arranged vertically opposite to each other on the two side walls. The limiting overlaps 92341 and the front wall of the middle top plate mounting slot 9234 limit the movement of the threaded fasteners along the depth direction of the slot, so that the threaded fasteners can only move along the length direction of the slot, avoiding the fasteners from deviating from the predetermined position due to sliding during the installation process, ensuring that the connection between the middle top plate 925 and the light strip profile 923 is firm and will not loosen due to vibration or temperature changes; the operator does not need to repeatedly adjust the screw position, thereby improving assembly efficiency.

[0125] In this embodiment, the middle top plate mounting plate 9235 is a closed cavity with an L-shaped cross-section. The L-shaped closed cavity of the middle top plate mounting plate 9235 includes a top wall, a side wall, and two parallel upper L-shaped walls and a lower L-shaped wall; the top wall and the side wall of the middle top plate mounting slot 9234 are integrally arranged; the front end of the upper L-shaped wall protrudes from the front end of the lower L-shaped wall, and the side wall is connected to the front end of the upper L-shaped wall obliquely upward from the front end of the lower L-shaped wall.

[0126] The width of the top wall corresponds to the distance between the front wall of the middle top plate mounting slot 9234 and the limiting overlap 92341. Preferably, the top wall of the middle top plate mounting plate 9235 and the side wall of the middle top plate mounting slot 9234 are made of the same material, which is an integrally molded structure, thereby further improving the structural strength and ensuring continuous force; the integral molding reduces the splicing process and improves product consistency; the L-shaped closed cavity is more resistant to bending and twisting deformation than the open profile; compared with the solid structure, it reduces weight while ensuring strength; it is suitable for welding or fastening connection: the closed structure is easier to achieve sealing and load-bearing capacity.

[0127] The L-shaped closed cavity consists of three parts: a top wall, side walls, and two parallel upper and lower L-shaped walls. These two parallel L-shaped structures, located at different heights within the closed cavity, provide multi-level mechanical support, enhancing shear and bending resistance. They can be formed in a single step through an extrusion process, making them suitable for industrial mass production. The front end of the upper L-shaped wall is positioned further forward than the lower L-shaped wall, and the two are connected by a diagonally connected side wall, forming a structure similar to a "step + ramp." This diagonal connection better distributes force, improves bending resistance, and helps smoothly transfer loads from the upper structure to the lower structure.

[0128] In one embodiment, the main body of the profile cross-section of the rotating connecting member 9251 is an inverted T-shape, and the horizontal side 92511 of the inverted T-shaped profile cross-section of the rotating connecting member 9251 is fixed to the middle top plate 925, preferably by welding; the vertical side 92512 of the inverted T-shaped profile cross-section is concave inward along the horizontal direction, and the circular cross-section extending downward from the top end of the vertical side 92512 is the rotating shaft 92513, and the rotating shaft 92513 rotates around it in the curved hook 92361.

[0129] The main cross-section of the rotating connector 9251 is an inverted T-shaped profile, consisting of horizontal edges 92511 and vertical edges 92512. This inverted T-shape provides a large contact area, facilitating a secure connection with the center top plate 925. The horizontal edges 92511 are fixed to the center top plate 925 and secured to it via screws, welding, or other means. The vertical edges 92512 are recessed laterally. This recessed design makes the rotating shaft 92513 more prominent, facilitating its insertion into the hook 92361 of the light strip profile 923. This design also prevents interference with other components, enhancing assembly convenience.

[0130] A cylindrical structure extends downward from the top of vertical edge 92512, forming pivot 92513. This pivot 92513 is a key component for achieving the rotational function, providing a pivot point around which the center top plate 925 can be opened and closed. Its circular cross-section reduces friction, improving rotational flexibility and lifespan. Pivot 92513 inserts into hook 92361 at the end of light strip profile 923. This pivot allows the center top plate 925 to rotate freely within hook 92361, enabling the center top plate 925 to rotate open and close, making it easier for maintenance personnel to open the center top plate 925 for internal equipment maintenance. The structure is simple and reliable, allowing for easy assembly and disassembly, in line with modular design principles.

[0131] The above-mentioned middle top plate 925 has the ability to rotate and open, which greatly improves the maintenance efficiency and safety, while also enhancing the modularity and aesthetics of the entire vehicle.

[0132] Furthermore, the side walls of the L-shaped closed cavity of the middle top plate mounting plate 9235, the bottom wall of the hinged connection portion 9236, and the hook 92361 form a rotating cavity;

[0133] A first limiting rib 925121, a second limiting rib 925122, and a third limiting rib 925123 are respectively provided on the vertical side 92512 of the inverted T-shaped profile section. The first limiting rib 925121 is located in the middle of the vertical side 92512 of the inverted T-shaped profile section and is arranged toward the side wall of the L-shaped closed cavity of the middle top plate mounting plate 9235.

[0134] The second limiting rib 925122 is located at the apex of the vertical side 92512 of the inverted T-shaped profile section and is disposed toward the bottom wall of the hinged connection portion 9236;

[0135] The third limiting rib 925123 is located at the downwardly extending portion of the top end of the vertical edge 92512 and is arranged toward the curved hook 92361 .

[0136] The side walls of the L-shaped closed cavity of the middle top plate mounting plate 9235, the bottom wall of the hinged connection part 9236 on the light strip profile 923, and the hook 92361 together form a rotating cavity. The rotating cavity contains a rotating shaft 92513 with an inverted T-shaped profile cross-section, and allows it to rotate freely in this space, ensuring that the rotating shaft 92513 rotates smoothly within a specific range to avoid external interference. By limiting the range of motion of the rotating shaft 92513, it is prevented from accidentally detaching or being damaged.

[0137] The first limiting rib 925121 is located in the middle of the vertical edge 92512, facing the sidewall of the L-shaped closed cavity. It prevents excessive vertical and lateral movement of the rotating shaft 92513 during rotation, providing an additional support point and increasing overall structural rigidity. The second limiting rib 925122 is located at the top of the vertical edge 92512, facing the bottom wall of the hinged connection 9236. It ensures that the rotating shaft 92513 does not separate from the hinged connection 9236 from above during rotation, maintaining structural integrity and functionality even under significant upward force. The third limiting rib 925123 is located at the downward extension of the top of the vertical edge 92512, facing the hook 92361, ensuring that the rotating shaft 92513 does not separate from the hook 92361 from below during rotation. Each limiting rib helps control the movement of the rotating shaft 92513 in different directions, preventing it from exceeding the designed range. The multiple limiting design reduces the possibility of the rotating shaft 92513 shifting or failing due to vibration or other external forces.

[0138] In another embodiment, a middle top retaining gap assembly 926 is further included, which is located at both longitudinal ends of the middle top plate 925 and extends along the transverse direction of the middle top plate 925; the middle top retaining gap assembly 926 includes:

[0139] The middle top baffle plate 9261 and the two baffle plate mounting seats 9262 located at the lateral ends of the middle top baffle plate 9261, the top ends of the baffle plate mounting seats 9262 are fixed to the second sliding mounting cavity 9224 via threaded fasteners; the bottom ends of the baffle plate mounting seats 9262 are detachably fixed to the middle top baffle plate 9261.

[0140] The middle top baffle plate 9261 is located between two adjacent middle top plates 925, or between the end middle top plate 925 and the end wall; the structural analysis of covering the edge of the middle top plate 925 makes the top of the car more tidy, prevents dust, noise, etc. from entering the interior of the car, and improves passenger comfort; the middle top baffle assembly 926 consists of a middle top baffle plate 9261 and two baffle plate mounting seats 9262, and the two baffle plate mounting seats 9262 are respectively located at the left and right ends of the baffle plate mounting seat 9262, that is, in the transverse direction of the car body. The double-sided installation ensures that the middle top baffle plate 9261 is evenly stressed and not easily deformed; the middle top baffle plate 9261 and the baffle plate mounting seat 9262 can be manufactured, transported and replaced separately to reduce maintenance costs. The upper portion of the slit plate mounting base 9262 is installed within the second sliding mounting cavity 9224 of the light strip profile 923 using screws and other threaded fasteners. This utilizes the existing sliding mounting cavity, eliminating the need for additional drilling and saving assembly time. The sliding cavity allows for a certain range of displacement adjustment to accommodate different vehicle models or installation errors. The lower portion of the slit plate mounting base 9262 is connected to the center slit plate 9261 using a removable connection method, such as screws or clips. If the center slit plate 9261 is damaged or requires cleaning, it can be removed independently without affecting other components. It is compatible with center slit plates 925 of varying lengths and shapes, enhancing versatility.

[0141] In one embodiment, the bottom of the side top plate 924 located at the longitudinal head end and the tail end are respectively provided with a partition mounting portion 9241 extending outward along the longitudinal direction; the partition mounting portion 9241 includes a longitudinal connecting plate 92411 and a partition mounting plate 92412, the longitudinal connecting plate 92411 extends outward along the longitudinal direction of the side top plate 924, and the partition mounting plate 92412 is located on the outside of the longitudinal connecting plate 92411 in the transverse direction.

[0142] In order to achieve the connection between the side top plate 924 and the partition, a partition mounting part 9241 is set at the bottom of the side top plate 924 at the longitudinal means and tail end, which is used to connect the partition structure in the car (such as the partition between the driver's cab and the passenger area, the advertising light box bracket, etc.), provide an installation interface for other structures in the car, and improve space utilization; make the top plate and the partition structure form a unified and coordinated whole, and enhance the visual effect; the partition mounting part 9241 consists of two main parts: a longitudinal connecting plate 92411 and a partition mounting plate 92412; the longitudinal connecting plate 92411 extends forward or backward from the bottom of the side top plate 924; the partition mounting plate 92412 is at a certain angle (usually a right angle) to the longitudinal connecting plate 92411, and serves as a mounting surface. The double-plate structure improves the load-bearing capacity and prevents loosening due to vibration. The longitudinal connecting plate 92411 extends along the length of the vehicle body (i.e., from front to back or from back to front), and the load can be effectively transferred longitudinally to the main structure of the side top plate 924, thereby avoiding structural deformation caused by uneven lateral force.

[0143] The partition mounting plate 92412 is arranged on the outer side of the longitudinal connecting plate 92411, that is, away from the center line of the vehicle body, with the mounting plate facing outward, which is convenient for the operator to install the partition structure; the mounting structure is arranged on the outside of the side top plate 924 without affecting the traffic space inside the vehicle; the mounting structure is avoided from being exposed to the passengers' line of sight to keep the car clean.

[0144] In one aspect, the hanging beam foundation 921 includes a C-shaped mounting frame 9211, comprising a top plate, a bottom plate, and side plates, with the side plates being located between the top and bottom plates; the top plate is provided with a first strip hole arranged in a transverse direction for detachably fixing to the C-shaped groove of the roof of the vehicle body; the bottom plate is provided with a second strip hole arranged in a transverse direction, and the second strip hole is fixed to the first sliding mounting cavity 9222 via threaded fasteners;

[0145] And a reinforcing rib plate 9212, which is located on one side of the width direction of the C-shaped installation frame 9211 and is fixed to the top plate, bottom plate and side plates respectively.

[0146] The C-shaped structure offers excellent bending resistance, making it suitable for bearing the loads from the roof system. A transversely extending slot (i.e., an oblong hole) is machined into the top plate of the C-shaped mounting frame 9211. This slot is used to pass fasteners such as bolts and secure them to the C-shaped slot on the top of the vehicle body. This slot allows for a certain range of fore-and-aft adjustment to accommodate different vehicle models or assembly errors, facilitating future maintenance or replacement of the roof structure. It also adapts to the standard C-shaped slot structure of the vehicle body, enhancing versatility. A transverse slot is also provided in the bottom plate of the C-shaped mounting frame 9211. This slot is used to connect to the first sliding mounting cavity 9222 in the top plate profile 922 via screws or other means. The sliding mounting cavity allows for quick positioning and securing of the top plate profile 922 to the hanger beam foundation 921. This connection eliminates the need for welding, in line with the lightweight, modular trend of modern rail transit. A reinforcing rib 9212 is installed on the side (widthwise) of the C-shaped mounting frame 9211. This rib is securely connected to the top, bottom, and side plates, forming a single, integrated structure. Prevents the C-shaped frame from deformation due to excessive force; can withstand greater static and dynamic loads; reduces fatigue damage and is suitable for long-term vibration environments; suitable for rail transit scenarios with extremely high safety requirements.

[0147] The above-mentioned passenger compartment roof effectively avoids the press line structure that is widely used in the installation of passenger compartment roofs on existing buses, thereby avoiding the negative impact of press lines on aesthetics and subsequent maintenance work; the middle roof panel 925 adopts a folding hanging method, and each piece can be opened separately. The side roof panels 924 adopt a crimping method, and at most two side roof panels 924 can be removed to complete the maintenance of the side and top parts. This design facilitates the realization of the need to repair the problem where it occurs, avoids the disassembly of irrelevant roof panel structures, improves maintenance efficiency, and saves time and costs.

[0148] The present application also provides a rail vehicle interior structure, comprising a plurality of vehicle body air supply ducts arranged longitudinally along the vehicle body and a passenger compartment roof for a rail vehicle according to any one of the above embodiments;

[0149] A plurality of hanging beam foundations of the passenger compartment roof of the rail vehicle are respectively integrated on both lateral sides of any vehicle body air supply duct.

[0150] The present application also provides a rail vehicle, comprising a driver's cab and the rail vehicle interior structure described in any one of the above embodiments.

[0151] See also Figure 11-12 , Figure 11 A schematic structural diagram of a driver's cab provided in an embodiment of the present application; Figure 12 Schematic diagram of the steel structure of the driver's cab provided for this application.

[0152] In a specific embodiment, the driver's cab provided in this application includes a driver's cab steel structure 10 and an integrally formed driver's cab hood 20. The driver's cab hood 20 is located on and fixed to the driver's cab steel structure 10. The driver's cab hood 20, located in the top area of the driver's cab, adopts an integrally formed fiberglass sandwich structure. The driver's cab hood 20 includes two fiberglass layers and a sandwich layer located in the middle. The sandwich layer is specifically a pre-embedded polymethacrylimide (PMI) foam layer. The integrally formed fiberglass sandwich structure facilitates controlling the dimensional accuracy of the driver's cab hood 20 after molding, improves the precision control of the three-dimensional interface dimensions of the windshield, external lighting, headlight glass, and wipers, and facilitates the installation of three-dimensional components such as the windshield external lighting, headlight glass, and wipers. The driver's cab steel structure 10, located in the bottom area of the driver's cab, is composed of a steel structure frame and a skin. The steel structure frame is a carbon steel metal frame. By providing the driver's cab hood 20, the scope of the driver's cab steel structure 10 is reduced, the manufacturing costs of molds, inspection tools, bending parts, etc. are reduced, and economic efficiency is improved. The density of the fiberglass reinforced plastic of the cab head cover 20 is lower than that of carbon steel, and reducing the range of the cab steel structure 10 helps to achieve lightweighting of the cab head structure.

[0153] In addition, the parting position of the cab hood 20 and the cab steel structure 10 should be on a simple, smooth surface with a small curvature change, so as to facilitate the streamlined matching of the cab hood 20 and the cab steel structure 10 during installation, while reducing the difficulty of manufacturing the skeleton and skin components of the cab steel structure 10 and improving economy; the curvature of the parting position between the cab hood 20 and the side wall of the cab steel structure 10 is small, and the position where the curvature of the side surface and the top surface change greatly is located on the fiberglass hood; the interface between the cab hood 20 and the front wall 11 and the rear end wall 12 is a two-dimensional surface.

[0154] The driver's cab steel structure 10 provides installation interfaces for movable windows and fixed windows, and thus the installation interfaces are respectively distributed on the driver's cab hood 20 and the driver's cab steel structure 10. It can be understood that the above-mentioned installation interfaces are respectively fully provided by the driver's cab hood 20 or the driver's cab steel structure 10, so as to avoid a certain component interface crossing the gap between the driver's cab steel structure 10 and the driver's cab hood 20, which makes the installation of the component difficult. Specifically, the driver's cab steel structure 10 includes a front wall component 11, a rear end wall component 12, a waist beam component 14, a roof curved beam component 18, and two side wall components 13 arranged opposite to each other in the transverse direction. The waist beam component 14 connects the front wall component 11 and the side wall component 13 respectively; the side wall component 13 connects the front wall component 11 and the rear end wall component 12 in the longitudinal direction, and the side wall component 13 has a movable window installation interface and a fixed window installation interface.

[0155] Example 1

[0156] like Figure 13-20 As shown, Figure 13A schematic structural diagram of the front wall provided in an embodiment of the present application; Figure 14 A schematic diagram of the structure of the front wall mainboard provided in an embodiment of the present application; Figure 15 Schematic diagram of the cross-sectional structure of the front wall mainboard provided in an embodiment of the present application; wherein (a) is a schematic diagram of the cross-sectional structure at AA in the middle, and (b) is a schematic diagram of the enlarged local structure at V in (a); Figure 16 A schematic diagram of a plate-beam structure provided in an embodiment of the present application; Figure 17 for Figure 16 A magnified schematic diagram of the local structure at point Ⅰ in the middle; Figure 18 A schematic diagram of a top view of the steel structure of the driver's cab provided in an embodiment of the present application; Figure 19 for Figure 18 AA-axis cross-sectional structural diagram; Figure 20 A schematic structural diagram of the anti-collision column provided in an embodiment of the present application.

[0157] In this embodiment, the front wall component 11 includes a front wall 111 and an opening and closing mechanism located at the front end of the front wall 111. The front end described here and below is based on the running direction of the rail vehicle, the longitudinal direction is the length direction of the rail vehicle, and the transverse direction is the width direction of the rail vehicle; the front wall component 11 is located at the end of the driver's cab steel structure 10, is connected to the chassis and side wall component 13, and provides relevant installation interfaces for the opening and closing mechanism, hood, electric whistle / bagpipe, brake pipe, etc.

[0158] The front wall component 11 includes a front wall 111, and the front wall 111 includes:

[0159] The front wall main plate 1111, the inner plate surface of the front wall main plate 1111 facing the interior of the driver's cab is provided with a plate beam structure 1112 for reinforcement;

[0160] The front wall reinforcement plate 1113 is arranged along the outer contour of the front wall main board 1111, and is used to connect with the driver's cab head cover 20 and the side wall component 13; the thickness of the front wall reinforcement plate 1113 is greater than the thickness of the front wall main board 1111.

[0161] Since the opening and closing mechanism, hood, etc. are heavier than other installed components, in order to ensure the installation reliability of the opening and closing mechanism and the hood, a front wall reinforcement plate 1113 is set in the outer contour area of the front wall main board 1111. The outer contour of the front wall reinforcement plate 1113 is consistent with the top contour of the parting position of the driver's cab hood 20, and the inner contour of the front wall reinforcement plate 1113 is set according to the lightweight principle (minimum area) of the connection point of the hood and the opening and closing mechanism to achieve lightweight. The thickness of the front wall reinforcement plate 1113 is greater than that of the front wall main board 1111. The front wall main board 1111 is set to 2-4mm, preferably 2mm, and the thickness of the front wall reinforcement plate 1113 is set to 8-12mm, preferably 10mm; on the outside of the driver's compartment, the front wall reinforcement plate 1113 protrudes beyond the size of the front wall main board 1111a, and on the outside of the driver's compartment, the front wall reinforcement plate 1113 protrudes beyond the size of the front wall main board 1111b; a brake pipe installation interface 1114 and an electric whistle and bagpipe installation interface 1115 are respectively provided on the outer plate surface of the front wall main board 1111, for respectively installing the brake pipe, electric whistle and bagpipe; two brake pipe installation interfaces 1114 and two electric whistle and bagpipe installation interfaces 1115 are respectively provided, and are symmetrically arranged along the transverse center line of the front wall component 11; the brake pipe installation interface 1114 and the electric whistle and bagpipe installation interface 1115 are respectively set as mounting seats with flanged wing plates. In order to ensure the strength and rigidity of the front wall component 11, a plate beam structure 1112 for reinforcement is provided on the inner panel surface of the front wall main panel 1111 facing the interior of the driver's cab. The plate beam structure 1112 includes a number of front wall cross beams 11121 and front wall longitudinal beams 11122 that are staggered horizontally and vertically, as well as a transverse reinforcement beam 11123. The brake pipe installation interface 1114, the electric whistle and bagpipe installation interface 1115 are respectively opposite to the horizontal and vertical intersection points of the plate beam structure 1112 on the inner panel surface on the outer panel surface of the front wall main panel 1111, and the plate beam structure 1112 provides support for each installation interface, thereby avoiding electric shock. The flute / bagpipe and brake pipe are deformed after welding; wherein, the front wall cross beam 11121 and the front wall longitudinal beam 11122 can be respectively set as L-shaped angle irons, and the L-shaped angle iron includes a first surface 111211 and a second surface 111212 perpendicular to each other, the first surface 111211 is in contact with the front wall main board 1111, and the second surface 111212 is perpendicular to the front wall main board 1111; the front wall cross beam 11121 and the front wall longitudinal beam 11122 are respectively continuously arranged at the first surface 111211 and the second surface 111212 at the intersection; thereby, the lateral load and the longitudinal load at the intersection can be continuously transmitted.Taking the example of setting 4 front wall longitudinal beams 11122 and 2 groups of front wall cross beams 11121, with 3 beams in each group, the top of the front wall longitudinal beam 11122 is close to the front wall reinforcement plate 1113 to ensure the transmission of the longitudinal load, while leaving an adjustment amount, such as a 1.5-3.5mm gap; at the intersection of the front wall cross beam 11121 and the front wall longitudinal beam 11122, the second surface 111212 of the front wall cross beam 11121 extends horizontally to above the first surface 111211 of the front wall longitudinal beam 11122 and abuts against the second surface 111212 of the front wall longitudinal beam 11122 and is welded and fixed, and the first surface 111211 of the front wall cross beam 11121 extends horizontally to the edge of the second surface 111212 of the front wall longitudinal beam 11122 and abuts and is welded and fixed; the L-shaped angle iron openings of the two groups of front wall cross beams 11121 are arranged opposite to each other to further improve the connection strength. The transverse reinforcement beam 11123 is located at the bottom of the front wall main board 1111 and extends along the length direction of the front wall main board 1111 and is set throughout the length, which is used to connect with the chassis, and at the same time prevent the front wall reinforcement plate 1113 from being deformed after being assembled and welded with the outer interface of the driver's cab, and prevent the front wall component 11 from being deformed after welding; it can be understood that the transverse ends of the transverse reinforcement beam 11123 also have adjustment amounts, such as a 1.5-3.5mm gap, and a transverse reinforcement beam 11123 with smaller rigidity is set on the inner plate surface of the front wall 111 to cooperate with the chassis, and a process adjustment amount is set at the transverse reinforcement beam 11123 to ensure the overall outline and size of the driver's cab after assembly, and can simultaneously realize load and shaping, and can realize a lightweight setting of the driver's cab.

[0162] The front wall reinforcement plate 1113 is arranged along the outer contour of the front wall main plate 1111. An opening and closing mechanism mounting interface 11131 and a head cover mounting interface 11132 are provided on the front wall reinforcement plate 1113. The opening and closing mechanism mounting interfaces 11131 are arranged in two groups, each group including two opening and closing mechanism mounting interfaces 11131. The two groups of opening and closing mechanism mounting interfaces 11131 are symmetrically arranged on both sides of the transverse centerline of the front wall component 11. The opening and closing mechanism mounting interfaces can be configured as mounting seats; the head cover mounting interfaces 11132 can be configured as oblong holes to provide installation adjustment. Adhesive is used to seal the front wall 111 and the opening and closing mechanism (mechanical connection and sealing). The outer contour of the front wall 111 is recessed inward from the outer contour of the opening and closing mechanism, leaving space for adhesive application. The front wall reinforcement plate 1113 provides support for adhesive application.

[0163] The driver's cab steel structure 10 provided in this application also includes an energy-absorbing beam 15, an anti-collision column 16 and an anti-collision corner column 17; the waist beam component 14 includes a transverse waist beam 141 and a longitudinal waist beam 142, the transverse waist beam 141 is located below the front window frame of the driver's cab; the longitudinal waist beam 142 is located below the side wall window; the energy absorption area is formed by the front wall component 11, the waist beam component 14, the energy-absorbing beam 15, the anti-collision column 16 and the anti-collision corner column 17 to ensure the safety of the driver; the anti-collision column 16, the anti-collision corner column 17, the transverse waist beam 141 and the longitudinal waist beam 142 form a protective belt to further protect the driver's personal safety.

[0164] Specifically, one end of the energy-absorbing beam 15 in the longitudinal direction is fixedly connected to the front wall 111, and the other end of the energy-absorbing beam 15 in the longitudinal direction is fixedly connected to the anti-collision column 16; the anti-collision column 16 and the energy-absorbing beam 15 are arranged in a one-to-one correspondence; the anti-collision column 16 and the anti-collision corner column 17 are both fixedly arranged below the transverse waist beam 141, and the anti-collision corner column 17 is located on the outside of the anti-collision column 16 in the transverse direction.

[0165] One end of the energy-absorbing beam 15 in the longitudinal direction is connected to the front wall reinforcement plate 1113, preferably opposite the opening and closing structure mounting interface. The other end of the energy-absorbing beam 15 in the longitudinal direction is welded to the anti-collision column 16. The anti-collision column 16 and the anti-rotation corner post are both box-beam structures. In the transverse direction of the driver's cab, the anti-collision corner post 17 is located laterally outside the anti-collision column 16. Optionally, there are two energy-absorbing beams 15, two anti-collision columns 16, and two anti-collision corner posts 17. In order to ensure the structural reliability and lightweight setting of the above-mentioned protective belt, a number of vertically arranged transverse ribs 161 are set inside the anti-collision column 16 and the anti-collision corner column 17, and the transverse ribs 161 in the same row of each anti-collision column 16 and anti-collision corner column 17 are in the same horizontal plane; taking the anti-collision column 16 and the anti-collision corner column 17 as an example to illustrate that four transverse ribs 161 are set respectively, the first row of transverse ribs 161 of the anti-collision column 16 and the first row of transverse ribs 161 of the anti-collision corner column 17 are in the same horizontal plane, the second row of transverse ribs 161 of the anti-collision column 16 and the second row of transverse ribs 161 of the anti-collision corner column 17 are in the same horizontal plane, and so on.

[0166] In order to further ensure the structural reliability of the protective belt, vertical ribs 1411 corresponding to the lateral side panels of the anti-collision column 16 and the anti-collision corner column 17 are provided in the transverse waist beam 141, and a number of vertical ribs 1411 are provided in the length direction of the transverse waist beam 141. The two lateral side panels of each anti-collision column 16 are respectively provided with two vertical ribs 1411 opposite to each other. Similarly, the two lateral side panels of each anti-collision corner column 17 are respectively provided with two vertical ribs 1411 opposite to each other, so as to improve the connection strength and ensure the continuous transmission of the load.

[0167] At the same time, since the bottom collides first when a collision occurs and the bottom bears a larger load, a connecting rib 162 is provided between the bottoms of adjacent anti-collision columns 16 and anti-collision corner columns 17 to facilitate structural stability and load transfer.

[0168] Example 2

[0169] like Figure 21-29 As shown, Figure 21 A schematic diagram of the structure of the side wall provided in an embodiment of the present application; Figure 22 A schematic structural diagram of a sidewall structure provided in another embodiment of the present application; Figure 23 for Figure 18 AA cross-sectional structural diagram in FIG; Figure 24 for Figure 18 BB-direction cross-sectional structural diagram; Figure 25 Schematic diagram of the assembly of the front wall and side wall components provided in an embodiment of the present application; Figure 26 for Figure 25 A schematic diagram of the partially enlarged structure at center A; Figure 27 A schematic diagram of the lateral structure of the driver's cab steel structure provided in an embodiment of the present application; Figure 28 A schematic diagram of the assembly structure of the rear end wall and end columns provided in an embodiment of the present application; Figure 29 for Figure 28 A magnified schematic diagram of the local structure.

[0170] The side wall component 13 of the present application provides an installation interface for corner windows, side windows, and a driver's cab installed driver's station; the side wall component 13 includes a side wall frame 131 and a side wall skin 132 located on the outside of the side wall frame 131; the side wall frame 131 matches the inner contour of the side wall skin 132, and the skin needs to have good deformation ability and a certain degree of rigidity, so the plate thickness is relatively thin, generally 2 to 3 mm; the side wall frame 131 plays the role of transferring loads, and the skin plays the role of shaping and providing an installation interface, so the plate thickness is relatively thicker than the skin.

[0171] Optionally, the side wall frame 131 includes a side wall bent beam 1311 and an end column 1312. The side wall bent beam 1311 extends longitudinally and its height increases gradually from front to back. With the front direction of the rail vehicle as the front, the front end of the side wall bent beam 1311 is docked with the front wall reinforcement plate 1113 to realize the connection between the side wall component 13 and the front wall component 11; the end column 1312 is located at the longitudinal rear end of the side wall bent beam 1311 and is arranged in the vertical direction; the end column 1312 is used to connect the rear end wall component 12; the longitudinal waist beam 142 of the waist beam component 14 is located below the side wall window, the longitudinal front end of the longitudinal waist beam 142 is fixed to the side wall bent beam 1311, and the longitudinal rear end of the longitudinal waist beam 142 is perpendicular to and fixed to the end column 1312. The upper and lower planes of the longitudinal waist beam 142 are parallel to the rail surface and can serve as a positioning reference in the vehicle height direction. The longitudinal end surfaces of the end columns 1312 are perpendicular to the rail surface and can serve as a positioning reference in the vehicle length direction when the cab side walls 13 and the cab are assembled. Together with the longitudinal waist beam 142, they form a reference for the manufacture of side windows and corner windows, thereby helping to ensure that the manufacturing tolerances of the side window and corner window frames are within the limits. Preferably, the end columns 1312 are U-shaped columns.

[0172] Furthermore, the side wall frame 131 also includes:

[0173] Several support beams 1313 are arranged longitudinally. The top of the first support beam 1313 is fixed to the side wall curved beam 1311. The tops of the remaining support beams 1313 except the first support beam 1313 are fixed to the longitudinal waist beam 142. The bottom ends of the support beams 1313 are used to be fixed to the base frame.

[0174] The side wall curved beam 1311 below the longitudinal waist beam 142, the first longitudinal support beam 1313 and the longitudinal waist beam 142 form a first side wall region, in which a plurality of grid beam structures 1314 staggered in both horizontal and vertical directions are provided;

[0175] The longitudinal waist beam 142, the first longitudinal support beam 1313 below the longitudinal waist beam 142, and the end columns 1312 form a second side wall area;

[0176] The side wall curved beam 1311 above the longitudinal waist beam 142, the first longitudinal support beam 1313, the longitudinal waist beam 142 and the end column 1312 form a third side wall area, which is used to install corner windows and side windows.

[0177] The first support beam 1313 arranged from front to back in the longitudinal direction is divided into two parts, upper and lower, through the longitudinal waist beam 142. The top of the upper part of the first support beam 1313 is fixed to the side wall curved beam 1311, and the bottom of the upper part of the first support beam 1313 is fixed to the upper surface of the longitudinal waist beam 142; the top of the lower part of the first support beam 1313 is fixed to the lower surface of the longitudinal waist beam 142, and the bottom of the lower part of the first support beam 1313 is fixed to the bottom frame. The top of each of the remaining support beams 1313 is fixed to the lower surface of the longitudinal waist beam 142, and the bottom of each support beam 1313 is fixed to the bottom frame; the support beam is set to a U-shaped structure, such as Figure 24 shown.

[0178] The first side wall region consists of a longitudinal waist beam 142, a side wall curved beam 1311 below the longitudinal waist beam 142, and the lower portion of the first support beam 1313. This region is located outside the driver's cab safety zone and provides an interface for hood installation. The curvature of the side wall skin 132 in this region varies significantly. Therefore, a rigid U-shaped frame is used around the side wall skeleton 131 in this region (except for the open structure at the bottom where it connects to the chassis). Several grid beam structures 1314 are arranged in a staggered pattern, horizontally and vertically, within the first side wall region. This utilizes an orthogonal grid beam structure, i.e., thinner, denser, and shorter vertical and horizontal grid beam structures 1314. This facilitates shaping while ensuring strength and rigidity. The orthogonal grid beams in this region are 3mm thick and spaced 200 to 300mm apart. Some cross beams of the grid beam structure 1314 and the front ends of the side wall curved beams 1311 are fixed to the front wall reinforcement plate 1113; the grid beam adopts L-shaped angle iron or U-shaped angle iron, which is fixed to the front wall reinforcement plate 1113 of the driver's cab in an open structure to increase stability and reduce noise.

[0179] The second side wall area is composed of the longitudinal waist beam 142, the lower part of the first support beam 1313 and the end column 1312, forming a box-shaped stable structure for load transfer; the side wall frame 131 also includes:

[0180] A plurality of transverse reinforcement beams 1317 are respectively located between adjacent support beams 1313 and between support beams 1313 and end columns 1312 . The transverse reinforcement beams 1317 are used to support the side wall skin 132 .

[0181] A reinforcing plate 1318 is provided below any supporting beam 1313 , and the supporting beam 1313 is fixed to the base frame via the reinforcing plate 1318 .

[0182] Similar to the first side wall area, the bottom of the second side wall area is an open structure. Due to the small curvature variation in this area, and considering the requirements for shape and weight reduction, transverse reinforcement beams 1317 are used between each support beam 1313 to support the side wall skin 132. The spacing between each support beam 1313 is set at 600-700mm to meet the requirements for shape and weight reduction. The transverse reinforcement beams 1317 are vertically spaced at 250-300mm. Specifically, several transverse reinforcement beams 1317 are respectively located between adjacent support beams 1313, and between support beams 1313 and end columns 1312. At the same time, a reinforcement plate 1318 is provided below each support beam 1313, and the support beam 1313 is fixed to the base frame via the reinforcement plate 1318 to reduce stress concentration. The transverse reinforcement beams 1317 are configured as L-shaped angle irons.

[0183] Furthermore, the side wall frame 131 also includes a number of side wall patches 1319, which are located at the longitudinal front end of the grid beam structure 1314, specifically arranged in the front end grid of the grid beam structure 1314; the side wall bent beam 1311 and part of the side wall patches 1319 are fixed to the front wall component 11, and before the front end open structure of the front wall component 11 is connected with the front wall reinforcement plate 1113, the side wall patches 1319 are welded first, and the side wall patches 1319 and the front wall reinforcement plate 1113 in the outer contour area of the front wall component 11 constitute the bonding area between the opening and closing mechanism and the driver's cab; at the same time, the surface quality control of the side wall shape is further improved, the stability of the structure is enhanced, and vibration and noise are reduced.

[0184] Considering the manufacturing cost and processability, the side wall is usually welded with multiple side wall skins 132 and side wall frames 131. In order to control the deformation of the side wall skins 132 after welding, the dividing lines between the multiple side walls are set on a supporting frame, such as a longitudinal waist beam 142, a support beam 1313, etc. At the same time, corresponding support pads 13131 can be set on the support beam to improve the support of the side wall skin, such as Figure 23 shown.

[0185] The third sidewall region provides installation interfaces for corner windows and side windows, specifically including corner window installation interface 1315 and side window installation interface 1316. The top portion provides an interface for hood installation. The structural design of this region should facilitate the installation of corner windows, side windows, and hoods, minimizing error accumulation. The first, second, and third sidewall regions are formed from integral components such as the longitudinal waist beam 142 and end columns 1312, which helps reduce manufacturing errors in the connection between the second and third sidewall regions. The U-shaped beams of the end columns 1312 have two surfaces perpendicular to the rail surface, serving as a vehicle-length positioning reference for cab sidewall assembly 13 and cab assembly. The upper and lower planes of the longitudinal waist beam 142 (parallel to the rail surface) serve as a vehicle-height positioning reference for the third sidewall region. Together with the end columns 1312, they form a reference for manufacturing the side windows and corner windows, helping to minimize manufacturing errors in the side window and corner window frames. The curved side beam 1311 at the top of the third side wall provides an interface for hood installation, and is designed to be divided into sections by the longitudinal waist beam 142 and the curved side beam 1311 of the first side wall. The design of the internal beams in the first side wall area, located near the front of the vehicle, must balance load transfer and load distribution. The beam row design matches the cross-section of the U-shaped beam row in the corresponding position in the first side wall area. The beam row between the corner windows and side windows is designed to take into account the contours of the corner windows and side windows.

[0186] The side wall component 13 is a curved component, using the integral end column 1312 as the reference for vehicle length, and the integral longitudinal waist beam 142 as the reference for side wall height. This reduces the cumulative manufacturing errors after the installation of the corner window and side window frames, facilitates the subsequent installation of interior decoration, corner windows, side windows, and the driver's platform, and saves assembly and repair work. The end column 1312 is a U-shaped column, and its outer contour matches the inner skin of the driver's cab side wall. It has good rigidity and is not easily deformed, which helps to maintain the contour of the driver's cab after the side wall component 13 is connected to the rear end wall. Ribs are installed at the corresponding positions where the end column 1312 connects to the side wall curved beam 1311 and the longitudinal waist beam 142 to facilitate load transfer.

[0187] Example 3

[0188] like Figures 30-33 As shown, Figure 30 A schematic diagram of the structure of the rear end wall provided in an embodiment of the present application; Figure 31 This is an enlarged schematic diagram of the local structure of the top curved beam provided in an embodiment of the present application; Figure 32 A schematic diagram of the assembly structure of the cab head cover and end columns provided in an embodiment of the present application; Figure 33 Schematic diagram of the assembly structure of the end column and the passenger compartment provided in an embodiment of the present application.

[0189] The rear end wall assembly 12 provided in this application is a planar structure used to connect the driver's cab and the passenger compartment. The rear end wall assembly 12 includes a top curved beam 121 and a rear end wall frame 122. The top curved beam 121 spans the upper portion of the rear end wall frame 122 in the transverse direction, and the bottom surfaces of the lateral ends of the top curved beam 121 are seated on the top surfaces of the end columns 1312. The top curved beam 121 is used to connect the driver's cab hood 20 and the passenger compartment roof structure. The top curved beam 121 is welded and fixed to the rear end wall frame 122. The top curved beam 121 also provides a connection interface between the driver's cab hood 20 and the passenger compartment roof structure, and is connected to the side wall end columns 1312. To facilitate measurement and assembly positioning during the driver's cab assembly, the interface between the top curved beam 121 and the end columns 1312 is parallel to the rail surface.

[0190] Optionally, the rear wall frame 122 includes:

[0191] The rear end wall door frame 123 has a center line that coincides with or is parallel to the transverse center line of the cab steel structure 10; the bottom of the rear end wall door frame 123 is used to connect to the chassis;

[0192] A plurality of rear end wall cross beams 124 and door frame columns on both sides of the rear end wall door frame 123 are connected to the end columns 1312 via the plurality of rear end wall cross beams 124 .

[0193] The rear wall door frame 123 has two door frame columns arranged in a transversely opposed relationship. The bottom of the rear wall door frame 123 is used to connect to the chassis. The rear wall crossbeam 124 is preferably configured as an L-shaped or U-shaped angle iron. This is open during the rear wall assembly process to provide a process margin, ensuring the installation accuracy of the door frame structure. This also facilitates the connection of the cab side walls to the rear wall assembly 12 by grinding the length of the rear wall crossbeam 124 to ensure the required overall cab profile accuracy. Similarly, the bottom column of the rear wall door frame 123 is also configured as an open structure, such as an L-shaped or U-shaped structure. This open structure connects to the chassis floor surface, facilitating height adjustment by reducing the connection area.

[0194] Optionally, a head cover end interface 1211 is provided at one end of the top curved beam 121 along the longitudinal direction toward the cab head cover 20;

[0195] And / or, a passenger compartment top area interface 1212 is provided on a side of the top surface of the top curved beam 121 close to the passenger compartment.

[0196] The end interface 1211 of the hood is a stepped structure, and the end of the cab hood 20 is also set to a stepped structure accordingly to achieve docking and fixation by bonding. The top surface of the top curved beam 121 is provided with a passenger compartment top area interface 1212, which can be set as a groove, and the passenger compartment top area can be overlapped with the passenger compartment skin. It can be understood that after the driver's cab is assembled, the passenger compartment roof skin is overlapped on the top curved beam 121 to ensure the welding quality and the airtightness of the whole vehicle. The passenger compartment roof assembly is the last component to be assembled during the vehicle body assembly. After ensuring the airtightness of the roof skin and the rear end wall of the driver's cab, in order to reduce the repair and adjustment work, a connecting plate is set between the passenger compartment roof frame and the top curved beam 121 of the rear end wall of the driver's cab to adjust the manufacturing error during the vehicle body assembly to ensure the vehicle body length.

[0197] At the same time, in order to achieve the connection between the end column 1312 and the passenger compartment and the driver's cab, the end column 1312 is provided with a mounting flange 13121 extending toward the passenger compartment side along the longitudinal direction. The connecting seam between the passenger compartment side wall skin 21132 and the driver's cab side wall skin 132 is butted against the mounting flange 13121.

[0198] The side wall frame 22 of the passenger compartment extends longitudinally to the inner surface of the mounting flange 13121 and butts against the longitudinal end wall of the end column 1312 .

[0199] The installation flange 13121 can be specifically an L-shaped angle iron, one side of the L-shaped angle iron is in contact with the longitudinal end wall of the end column 1312, and the other side of the L-shaped angle iron extends longitudinally toward the passenger compartment. The connection seam between the passenger compartment side wall skin 21 and the driver compartment side wall skin 132 overlaps the installation flange 13121, and the end column 1312 provides support for the passenger compartment side wall skin 132 and the driver compartment side wall skin 132 at the same time, ensuring the welding quality and the airtightness of the entire vehicle. The passenger compartment frame and the end column 1312 of the driver compartment side wall assembly 13 are connected through the reserved process adjustment amount of the passenger compartment frame to ensure the length of the vehicle body. The passenger compartment side wall skin 132 and the driver compartment end column 1312, the passenger compartment roof skin and the top curved beam 121 adopt an overlapping structure, which is conducive to ensuring the welding quality, the dimensional accuracy after the vehicle body is assembled, and the airtightness of the entire vehicle.

[0200] In one specific embodiment, after the driver's cab is assembled, its structure with the chassis includes interfaces with the front wall 11, the side walls 13, and the rear wall 12. Due to the high overall rigidity of the chassis, a transverse reinforcement beam 11123 with low rigidity is installed on the inside of the front wall of the driver's cab to connect with it, ensuring the dimensional accuracy and airtightness of the vehicle body after assembly. The side wall frame 131 is connected to the chassis plane via an open support beam 1313, and the side wall skin 132 is overlapped on the support beam 1313, ensuring not only an aesthetically pleasing appearance after welding but also the airtightness of the vehicle.

[0201] The above-described cab is suitable for structures with carbon steel bodies and a relatively large interior cab space requirement. It utilizes a bottom cab steel structure 10 combined with an upper cab hood 20. The bottom cab steel structure 10, comprised of a carbon steel metal frame and skin, ensures load-bearing and shape stability, ensuring driver safety. It also provides mounting ports for cab equipment such as side windows and movable windows, minimizing interior cab space occupation and ensuring convenient operating space throughout the cab. The reduced size of the cab steel structure 10 reduces manufacturing costs for molds, gauges, and bent parts, improving economic efficiency and achieving a lightweight design.

[0202] The upper cab hood 20 utilizes a fiberglass sandwich structure that facilitates curved surface shaping, providing a three-dimensional interface for the windshield, exterior lighting, and headlight glass. This achieves lightweight design while reducing manufacturing costs. Furthermore, the fiberglass composite manufacturing process improves the dimensional accuracy of the three-dimensional components and the control of interface matching. The cab hood 20 is bolted together for reliable connection, and a sealant seal is used to seal the cab steel structure 10 and the cab hood 20.

[0203] The connection interfaces between the driver's cab front wall component 11, the side wall component 13, and the rear end wall component 12 adopt a connection structure with high stiffness matching low stiffness, and process adjustment amounts are set in the area with low stiffness, which is conducive to ensuring the overall outline and size of the driver's cab after assembly.

[0204] The design of the connection interfaces between the front wall, side walls and rear end wall of the driver's cab, as well as the interface relationship design between the driver's cab steel structure 10 and the passenger compartment chassis, side walls and roof, can reduce the amount of assembly mold modification, control post-weld deformation, and ensure the dimensional accuracy and sealing of the entire vehicle.

[0205] The present application also provides a rail vehicle, comprising a vehicle body and a driver's cab 100 as described in any one of the above embodiments, wherein the driver's cab is connected to the vehicle body, and the vehicle body comprises a passenger compartment roof and inner windshields located at both longitudinal ends of the vehicle body; since the rail vehicle adopts the driver's cab 100 in the above embodiments, please refer to the above embodiments for the beneficial effects of the rail vehicle.

[0206] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0207] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A passenger compartment roof for a rail vehicle, characterized in that: include: Multiple lifting beam foundations are integrated on both sides of the vehicle body air supply duct for lifting with the roof of the vehicle body; A top plate profile extending in the longitudinal direction of the vehicle body and located at the bottom of the suspension beam foundations on both sides in the transverse direction, wherein the top plate profile is detachably fixedly connected to any of the suspension beam foundations; A light strip profile extending in the longitudinal direction of the vehicle body and being detachably fixedly connected to the roof profile, the light strip profile being used for installing the light strip; A side roof panel extending longitudinally along the vehicle body, one lateral side of the side roof panel being detachably fixedly connected to the roof panel profile, and the other side being used for mounting a luggage rack; The middle top plate extends along the longitudinal direction of the vehicle body and is located below the vehicle body air supply duct; one lateral side of the middle top plate is hinged to the light strip profile on the corresponding side, and the other side is detachably fixedly connected to the light strip profile on the corresponding side, so that the middle top plate can rotate around the longitudinal direction of the vehicle body to open and close.

2. The passenger compartment roof for a railway vehicle according to claim 1, characterized in that: The top plate profile comprises: A top plate profile body, wherein a first sliding mounting cavity is provided at the top of the top plate profile body, the first sliding mounting cavity has a top opening, and the first sliding mounting cavity longitudinally penetrates the top plate profile body; the first sliding mounting cavity is used to be fixed to the hanging beam foundation via threaded fasteners; The top plate profile body is provided with a side top plate mounting portion extending laterally away from the vehicle body air supply duct, and the bottom of the top plate profile body is provided with a second sliding mounting cavity, the second sliding mounting cavity has a bottom opening, and the second sliding mounting cavity passes through the top plate profile body longitudinally; the second sliding mounting cavity is used to be fixed to the light strip profile via threaded fasteners.

3. The passenger compartment roof for a railway vehicle according to claim 2, characterized in that: The cross-section of the top plate profile body is rectangular, and the bottom edge of the cross-section of the top plate profile body is provided with a downwardly opening groove to form the second sliding installation cavity; The top edge of the cross-section of the top plate profile body is strip-shaped and protrudes from the side edge of the cross-section of the top plate profile body along the width direction. The top edge is provided with a card groove opening upward to form a first sliding mounting cavity. The inner top edge of the strip-shaped top edge extends outward along the outer top edge protruding laterally from the strip-shaped top edge to form the side top plate mounting portion.

4. The passenger compartment roof for a railway vehicle according to claim 2, characterized in that: The cross-section of the light strip profile is L-shaped, including a first mounting surface and a second mounting surface, the first mounting surface is used to cover the side top plate mounting portion, and the second mounting surface is provided with a light strip mounting portion for mounting the light strip; A closed cavity with an L-shaped cross section is provided on the back side of the second mounting surface, wherein the long side of the L-shaped closed cavity extends in a direction perpendicular to the second mounting surface, and a light strip profile mounting hole is provided on the long side of the L-shaped closed cavity that passes through in the thickness direction; A middle top plate mounting portion is provided on the front side of the second mounting surface, and the middle top plate mounting portion includes a middle top plate mounting slot, a middle top plate mounting plate and a hinged connection portion arranged in sequence from back to front; The front end of the middle top plate mounting slot is opened; The middle top plate mounting plate is located on the lower side wall of the middle top plate mounting slot and extends forward; The hinged connection portion is located at the front end of the middle top plate mounting plate and extends forward a preset distance, then extends downward and is provided with a hook at the bottom end thereof that bends upward and backward; A rotating connection piece is provided on one lateral side of the middle top plate. The rotating connection piece is located in the hook and can rotate around the hook.

5. The passenger compartment roof for a railway vehicle according to claim 4, characterized in that: The middle top plate mounting plate of the light strip profile that is detachably fixedly connected to the middle top plate is provided with a clearance mounting hole; A light strip profile mounting seat is provided on the other lateral side of the middle top plate, and the light strip profile mounting seat is located in the yield mounting hole; the bottom of the light strip profile mounting seat is fixed to the middle top plate via threaded fasteners, and the side of the light strip profile mounting seat is fixed to the middle top plate mounting slot via threaded fasteners.

6. The passenger compartment roof for a railway vehicle according to claim 4, characterized in that: A set of limiting edges are provided on the side walls of the middle top plate mounting slot, and the limiting edges and the front wall of the middle top plate mounting slot limit the movement of the threaded fastener along the slot depth direction; The middle top plate mounting plate is a closed cavity with an L-shaped cross-section. The L-shaped closed cavity of the middle top plate mounting plate includes a top wall, side walls, and two parallel upper L-shaped walls and a lower L-shaped wall; the top wall and the side walls of the middle top plate mounting slot are integrally arranged; the front end of the upper L-shaped wall protrudes from the front end of the lower L-shaped wall, and the side wall is connected to the front end of the upper L-shaped wall obliquely upward from the front end of the lower L-shaped wall.

7. The passenger compartment roof for a railway vehicle according to claim 6, characterized in that: The main body of the profile cross-section of the rotating connector is an inverted T-shape, the horizontal side of the inverted T-shaped profile cross-section of the rotating connector is fixed to the middle top plate, the vertical side of the inverted T-shaped profile cross-section is concave inward along the horizontal direction, and the circular cross-section extending downward from the top end of the vertical side is the rotating shaft, and the rotating shaft rotates around it in the curved hook.

8. The passenger compartment roof for a railway vehicle according to claim 7, characterized in that: The side walls of the L-shaped closed cavity of the middle top plate mounting plate, the bottom wall of the hinged connection portion and the curved hook form a rotation cavity; A first limiting rib, a second limiting rib and a third limiting rib are respectively provided on the vertical sides of the inverted T-shaped profile section, wherein the first limiting rib is located in the middle of the vertical side of the inverted T-shaped profile section and is arranged toward the side wall of the L-shaped closed cavity of the middle top plate mounting plate; The second limiting rib is located at the vertex of the vertical side of the inverted T-shaped profile section and is arranged toward the bottom wall of the hinged connection portion; The third limiting edge is located at a downwardly extending portion of the top end of the vertical edge and is arranged toward the hook.

9. The passenger compartment roof for a railway vehicle according to claim 2, characterized in that: It also includes a middle top seam retaining assembly, which is located at both ends of the middle top plate in the longitudinal direction and extends along the transverse direction of the middle top plate; the middle top seam retaining assembly includes: A middle top baffle plate and two baffle plate mounting seats located at the lateral ends of the middle top baffle plate, the top ends of the baffle plate mounting seats are fixed to the second sliding mounting cavity via threaded fasteners; the bottom ends of the baffle plate mounting seats are detachably fixed to the middle top baffle plate.

10. The passenger compartment roof for a railway vehicle according to claim 1, characterized in that: The bottoms of the side top plates at the longitudinal head end and the tail end are respectively provided with partition wall mounting portions extending outward in the longitudinal direction; The partition wall mounting portion includes a longitudinal connecting plate and a partition wall mounting plate. The longitudinal connecting plate extends outwardly along the longitudinal direction of the side top plate, and the partition wall mounting plate is located on the outer side of the longitudinal connecting plate in the transverse direction.

11. The passenger compartment roof for a railway vehicle according to claim 2, characterized in that: The hanging beam foundation comprises: The C-shaped mounting frame includes a top plate, a bottom plate, and side plates, wherein the side plates are located between the top plate and the bottom plate; the top plate is provided with a first strip hole arranged in a transverse direction for detachably fixing to the C-shaped groove of the roof of the vehicle body; the bottom plate is provided with a second strip hole arranged in a transverse direction, and the second strip hole is fixed to the first sliding mounting cavity via a threaded fastener; and a reinforcing rib plate, wherein the reinforcing rib plate is located on one side in the width direction of the C-shaped mounting frame and is respectively fixed to the top plate, the bottom plate and the side plates.

12. A rail vehicle interior structure, characterized in that: The vehicle comprises a plurality of vehicle body air supply ducts arranged longitudinally along the vehicle body and a passenger compartment roof for a rail vehicle according to any one of claims 1 to 11; A plurality of hanging beam foundations of the passenger compartment roof of the rail vehicle are respectively integrated on both lateral sides of any of the vehicle body air supply ducts.

13. A rail vehicle, characterized in that: It comprises a driver's cab and the rail vehicle interior structure according to claim 12.

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