Train roof integrated device

Abstract

A train roof integrated device, comprising: a plurality of middle modules (1). Each middle module (1) is formed by assembling a roof panel framework, middle roofs (14), air ducts (15), handrails (16) and invisible strip lamps (17), and the middle modules (1) are pre-assembled off a train; one middle module (1) corresponds to two side roof modules (2), a return air grille and a lamp cover are formed on each side roof module (2), and the side roof modules (2) are pre-assembled off the train; and two sides of each middle module (1) are respectively connected to two side roof modules (2), and the other sides of the side roof modules (2) are respectively connected to two side walls of the train.

Description

A roof-mounted integrated device for trains Technical Field

[0001] This application relates to the field of rail vehicle technology, and more specifically, to a top-mounted integrated device for a train. Background Technology

[0002] The roof area of ​​urban rail vehicles mainly consists of the central roof, side roofs, air ducts, ventilation grilles, and light strips, and also houses handrail mounting brackets, smoke detectors, cameras, and other equipment. To simplify the installation structure and improve the installation efficiency in the assembly workshop, the roof area components are designed in an integrated and modular fashion to accommodate various passenger interface styles for trackless vehicles.

[0003] Currently, a secondary frame is first hoisted onto the car body using fasteners on the top of urban rail vehicles. The air ducts, secondary frame, side roof, central roof, light strips, and ventilation grilles on the top are installed separately and sequentially to achieve the functions of the top.

[0004] Components such as air ducts, central ceiling, side ceilings, light strips, and ventilation grilles submit their installation interface requirements to the secondary frame as needed. Each component is then sequentially hoisted onto the secondary frame using fasteners. The secondary frame's profile cross-section is designed according to the installation requirements of each part.

[0005] The secondary frame connects to various components. The upper part of the secondary frame is connected to the vehicle body and the corner brackets of the air duct using fasteners. The bottom is designed with a sliding groove to connect with the air duct, light strip, and side top.

[0006] The aforementioned urban rail vehicle roof section has the following drawbacks:

[0007] (1) Many parts and difficult assembly

[0008] Assembling the top requires first hoisting the secondary frame, and then sequentially installing the air ducts, central ceiling, ventilation grilles, light strips, and side ceilings. With numerous installation points, adjusting the gaps between ceiling panels and between ceiling panels and light strips is quite challenging.

[0009] (2) Complex process flow

[0010] Due to the numerous interfaces and complex installation process, high skill requirements are placed on workers. Accumulated errors can easily accumulate in the final stage, making gaps difficult to adjust and affecting the aesthetics of the passenger interface. Furthermore, the requirements for tooling are also high. The numerous assembly steps result in low assembly efficiency, high labor costs, and a long vehicle production cycle.

[0011] (3) Poor environmental protection and limited expression.

[0012] The central ceiling is mostly made of painted aluminum plates, aluminum honeycomb, or fiberglass, but the paint treatment is not environmentally friendly. To achieve different patterns on the ceiling, secondary processing is required, involving creating through-holes of various shapes, followed by installing lights at these holes – a complex process. Achieving multiple patterns is difficult and costly.

[0013] Therefore, the traditional installation of the top plate of rail vehicles has many top installation components, high assembly difficulty, complex assembly process, and great difficulty in adjusting the various components in the top area. These are technical problems that urgently need to be solved by those skilled in the art.

[0014] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention

[0015] This application provides a top-mounted integrated device for trains to solve the technical problems of numerous top-mounted components and high assembly difficulty in traditional rail vehicle top plate installation.

[0016] The application embodiment provides a top-mounted integrated device for a train, comprising:

[0017] Multiple central modules, each central module is assembled from a roof frame, central roof, air duct, handrail and light strip, and is pre-assembled under the train to form a central module;

[0018] One central module corresponds to two side top modules. The side top modules have return air grilles and lamp covers, and are pre-assembled under the train to form side top modules. The two side top modules are connected to the two sides of the central module respectively, and the other side of the side top modules is connected to the two side walls of the train respectively.

[0019] The embodiments of this application, by adopting the above technical solutions, have the following technical effects:

[0020] In this embodiment of the top integration device, each central module is assembled from a roof frame, air duct, handrail, central roof, and light strip, and is pre-assembled under the train to form the central module. Similarly, each side roof module 2 is also pre-assembled under the train to form the side roof module. After the central module and side roof modules are pre-assembled under the train, the central module 1 is assembled with the train body on the train. Then, the side roof modules, central modules, and side walls of the train are connected on the train. In this way, the pre-assembly process under the train does not occupy the space of the train body, allowing pre-assembly to be carried out in a suitable space (such as an assembly workshop) using various suitable tools. It also allows the pre-assembly of the central module and side roof modules to be completed in advance before the mass production or assembly of the train body. Afterward, the central module and side roof modules are installed in the train body, making the overall assembly of the train shorter. The top integration device of this embodiment has a high degree of integration, is convenient to install, and has high installation efficiency. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 is a schematic diagram of the top-mounted integrated device of a train according to an embodiment of this application;

[0023] Figure 2 is a partial schematic diagram of the top integrated device shown in Figure 1;

[0024] Figure 3 is a partial schematic diagram of the top integrated device shown in Figure 1 from another angle;

[0025] Figure 4-1 is a schematic diagram of the skeleton beam of the top integrated device shown in Figure 1;

[0026] Figure 4-2 is a three-dimensional view of the frame beam shown in Figure 4-1;

[0027] Figure 5-1 is a schematic diagram of the grille profile of the top integrated device shown in Figure 1;

[0028] Figure 5-2 is a three-dimensional view of the frame beam shown in Figure 5-1;

[0029] Figure 5-3 is a perspective view of the frame beam shown in Figure 5-2 from another angle;

[0030] Figure 6-1 is a partial perspective view of the top integrated device shown in Figure 1;

[0031] Figure 6-2 is a partial schematic diagram of Figure 6-1;

[0032] Figure 7-1 is another partial perspective view of the top integrated device shown in Figure 1;

[0033] Figure 7-2 is a schematic diagram showing the connection between the handrail and the frame beam of the top integrated device shown in Figure 1;

[0034] Figure 8-1 is another partial perspective view of the top integrated device shown in Figure 1;

[0035] Figure 8-2 is a schematic diagram showing the connection between the air duct and the frame beam of the top integrated device shown in Figure 1.

[0036] Figure 9-1 is another partial perspective view of the top integrated device shown in Figure 1;

[0037] Figure 9-2 is a partial schematic diagram of the circled area in Figure 9-1;

[0038] Figure 10-1 is a schematic diagram of the top of the integrated device shown in Figure 1;

[0039] Figure 10-2 is a schematic diagram of another angle of the central top shown in Figure 10-1;

[0040] Figure 10-3 is a partial schematic diagram of the circled area in Figure 10-2;

[0041] Figure 11 is a schematic diagram of the central roof body and central roof light module of the central roof of the top integrated device shown in Figure 1;

[0042] Figure 12 is a schematic diagram of the connection between the top module and the grille profile of the top integrated device shown in Figure 1 and the side wall of the train.

[0043] Figure 13-1 is a perspective view of the side-top module of the top integrated device shown in Figure 1;

[0044] Figure 13-2 is a perspective view of the top-side module shown in Figure 13-1 from another angle.

[0045] Figure label:

[0046] Middle Module 1

[0047] Top slab frame: Grille profile 11, first grille chamber 11-1, second grille chamber 11-2 and third grille chamber 11-3, grille air inlet 111, grille air outlet 112, grille top mounting flange 113, grille top inclined slide groove 114, grille side top mounting flange 115, grille crossbeam mounting positioning interface 116, nut slider mounting positioning interface 118, handrail mounting window 119.

[0048] Frame beam 12, frame beam outer top mounting interface 121, frame beam inner top mounting interface 122, frame beam side mounting interface 123.

[0049] 13 frame beam lifting brackets.

[0050] 14 for the central top, 141 for the slider nut, 142 for the central top body, and 143 for the central top light module.

[0051] Air duct 15, L-shaped connecting ear 151,

[0052] Handrail 16,

[0053] Invisible LED strip 17,

[0054] Side top module 2, side top hinge 21, return air hole 23, light strip cavity 24. Detailed Implementation

[0055] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0056] Example 1

[0057] As shown in Figure 1, the train roof integration device according to an embodiment of this application includes:

[0058] Multiple central modules 1, each central module is assembled from a top plate frame, a central roof, air ducts, handrails and light strips, and is pre-assembled under the train to form a central module;

[0059] One central module corresponds to two side top modules 2. The side top modules have return air grilles and lamp covers, and are pre-assembled under the train to form side top modules 2. The two sides of the central module 1 are respectively connected to the two side top modules 2, and the other side of the side top modules is respectively connected to the two side walls of the train.

[0060] In this embodiment of the top integration device, each central module is assembled from a roof frame, air duct, handrail, central roof, and light strip, and is pre-assembled under the train to form the central module. Similarly, each side roof module 2 is also pre-assembled under the train to form the side roof module. After the central module and side roof modules are pre-assembled under the train, the central module 1 is assembled with the train body on the train. Then, the side roof modules, central modules, and side walls of the train are connected on the train. In this way, the pre-assembly process under the train does not occupy the space of the train body, allowing pre-assembly to be carried out in a suitable space (such as an assembly workshop) using various suitable tools. It also allows the pre-assembly of the central module and side roof modules to be completed in advance before the mass production or assembly of the train body. Afterward, the central module and side roof modules are installed in the train body, making the overall assembly of the train shorter. The top integration device of this embodiment has a high degree of integration, is convenient to install, and has high installation efficiency.

[0061] In practice, as shown in Figures 2, 3, 5-1, 5-2, and 5-3, the top plate frame serves as the mounting base for the top integrated device; the top plate frame includes a grid profile 11.

[0062] The cross-section of the grille profile has three transversely arranged first grille chamber 11-1, second grille chamber 11-2 and third grille chamber 11-3;

[0063] The second grille chamber 11-2 is rectangular. The top of the second grille chamber has a grille air inlet 111 for connecting with the air duct, and the bottom of the second grille chamber has a grille air outlet 112 for blowing air into the train.

[0064] The first grid chamber 11-1 is rectangular, and the top of the grid profile 11 has a grid center top mounting flange 113 extending out of the first grid chamber; wherein, the grid center top mounting flange 113 is used for center top mounting with the top integrated device;

[0065] The third grid chamber 11-3 is a right-angled trapezoid, and an inclined groove 114 for the top of the grid is provided on the inclined side of the third grid chamber; the bottom of the third grid chamber has a grid edge mounting flange 115.

[0066] The three chambers of the grille profile, namely the first grille chamber 11-1, the second grille chamber 11-2, and the third grille chamber 11-3 arranged laterally, divide the cross-section of the grille profile into three parts, making the grille profile stronger and less prone to deformation; it also reserves space for setting up installation structures in different areas.

[0067] In practice, as shown in Figure 5-2, the grid profile 11 has two grid beam mounting and positioning interfaces 116 and a nut slider mounting and positioning interface 118.

[0068] In practice, as shown in Figures 4-1, 4-2, 6-1, and 6-2, the top plate frame also includes:

[0069] The frame beam 12 has two full-length frame beam outer top mounting interfaces 121 on its outer top, two full-length frame beam inner top mounting interfaces 122 on its bottom surface, and one full-length frame beam side mounting interface 123 on each of its two sides.

[0070] The frame beam hanger 13 is used to connect the two ends of the outer top of each frame beam 12 to the frame beam hanger 13 through two frame beam outer top mounting interfaces 121; wherein, the frame beam hanger 13 is used to connect the middle module as a whole to the inner top of the train body.

[0071] The frame beam 12 is positioned at the grid beam mounting and positioning interface 116 and connected by a connector. The frame beam 12 and the grid profile 11 are also connected by a connector, the top inclined slide groove 114 of the grid, and the end of the frame beam outer top mounting interface 121.

[0072] The frame beam lifting bracket 13 connects the entire central module 1 to the top of the train's interior, minimizing the need for connection to the train and installation on the train.

[0073] The mounting and positioning interface 116 of the grid beam defines the installation position of the frame beam 12, thereby standardizing the installation position of the frame beam and facilitating installation by installers.

[0074] The two ends of the frame beam 12 and the two grid profiles 11 are connected by connectors, the inclined sliding groove 114 on the top of the grid and the outer top mounting interface 121 of the frame beam. The middle part of the frame beam 12 is connected to the top of the two grid profiles 11 by the grid beam mounting positioning interface 116 and connectors, so that the frame beam 12 and the two grid profiles 11 are installed stably and reliably.

[0075] In practice, as shown in Figures 8-1 and 8-2, there are two air ducts 15, which are located above the grille profile respectively;

[0076] The air duct 15 is fixed by connecting its own L-shaped connecting ears 151, fasteners and outer top mounting interface 121 of the frame beam on both sides.

[0077] The mounting and positioning interface 116 of the grid beam defines the installation position of the frame beam 12, thereby standardizing the installation position of the frame beam and facilitating installation by installers.

[0078] In practice, as shown in Figures 7-1 and 7-2, the bottom of the first grid chamber has a through hole for a handrail, the top of the first grid chamber has a handrail mounting interface, and the side of the first grid chamber has a handrail mounting window 119.

[0079] The top of the handrail 16 passes through the through hole of the lower handrail and is connected to the upper top with a handrail installation interface, a frame beam inner top installation interface 122 and fasteners to realize the installation of the handrail, the grid profile and the frame beam. The handrail installation window 119 is used by the installer to install the handrail.

[0080] The handrail 16 and the frame beam hanger 13 are installed back to back.

[0081] This facilitates the installation of the handrails, grille profiles 11, and frame beams 12.

[0082] The handrail passes through the grille profile 11 and is installed on the frame beam 12. Since the frame beam 12 is directly above the frame beam hanger 13 that is installed with the vehicle body, the installation strength of the handrail is guaranteed. The grille profile provides a handrail installation interface and a handrail installation window 119 for the handrail mounting seat, ensuring operating space.

[0083] Specifically, the armrest mounting base has an elongated hole that connects to the T-bolt inside the mounting interface 122 on the inner top of the frame beam. The armrest mounting base can be adjusted in both vehicle length and width.

[0084] In practice, as shown in Figures 9-1, 9-2, 10-1, and 10-2, the two sides of the central top 14 have multiple sliding nuts 141;

[0085] The central top 14 and the grid profile 11 are connected by the slider nut 141 and the nut slider mounting and positioning interface 118;

[0086] The slider nut 141 is able to slide within a preset range along the length direction of the center top via the mounting and positioning interface 118 of the nut slider, and its range of motion in the width direction of the center top is extremely small.

[0087] The slider nut 141 and the nut slider are fitted with the mounting and positioning interface 118, so that the center top 14 can move relative to the grid profile 11 along the length direction of the center top, which reduces the requirements for the manufacturing precision of the center top 14 and the grid profile 11 and reduces the manufacturing cost; it also has a moderate adjustment space during installation, which is convenient for installation.

[0088] In practice, as shown in Figures 10-1, 10-2, 10-3, 11, and 12, the central roof includes a central roof body 142 and a central roof light module 143.

[0089] The central top light module 143 is installed in the central top body 142 at the reserved central top light module installation window position by fasteners;

[0090] The central module also includes a concealed light strip 17, which is installed at the top mounting flange 113 in the center of the grille and the top mounting flange 115 on the side of the grille.

[0091] To improve the riding experience, concealed light strips 17 are bolted to both sides of the grille profile. When installing the side top module later, the flange on the upper side of the side top can hide the concealed light strips 17. After the side top module 2 is installed, the light from the concealed light strips 17 is only displayed when the lighting is on.

[0092] In practice, as shown in Figures 12, 13-1, and 13-2, a side top hinge 21 is fixed on the upper side of the side top module, and the side top module 2 and the grid side top mounting flange 115 are fixedly connected through the side top hinge 21.

[0093] The lower side of the top module 2 is unclamped to the side wall of the train via a lock.

[0094] In this way, the lock and the side top hinge 21 work together. After the lock is unlocked, the side top module 2 can rotate about the axis of the side top hinge 21, and the side top can rotate towards the middle of the vehicle body for easy maintenance.

[0095] In practice, as shown in Figures 13-1 and 13-2, the edge-top module 2 further includes:

[0096] Edge ceiling light strip;

[0097] The side top module has a return air hole 23 on the side facing the ground of the train, and a light strip cavity 24 is provided on the lower side of the side top module, and the side top light strip is fixed in the light strip cavity 24.

[0098] Specifically, the roof frame consists of frame beams 12 and grid profiles 11, assembled using stainless steel fasteners. The roof frame structure boasts high stability, rigidity, and strength, meeting the requirements for hoisting. Stainless steel frame beam lifting brackets 13 are installed on the frame beams 12, and these brackets are connected to the vehicle body sliding grooves via sliding bolts, thus hoisting the entire integrated roof assembly.

[0099] Specifically, the frame beam is made of aluminum profile. The outer top mounting interface 121, inner top mounting interface 122, and side mounting interface 123 of the frame beam are T-shaped grooves. T-bolts are installed in the grooves for installing stainless steel frame beam hangers 13 and connecting grid profiles 11.

[0100] Specifically, the grille profile is made of aluminum, with a grille air inlet 111 at the top and a grille air outlet 112 at the bottom. The grille profile also provides mounting holes for the top edge module 2 and the concealed light strip, and provides through holes, mounting interfaces, and mounting windows for the handrail 16. Two vertical ribs are installed inside the grille profile, enabling the separation of the first, second, and third grille chambers. The second grille chamber has ventilation functionality and will not leak air into the first and third grille chambers. The first and third grille chambers can also be used for the installation of other components.

[0101] Specifically, as shown in the figure, the main body of the air duct 15 is made of aluminum foil composite board with a thickness of 10mm. The internal partitions of the air duct are made of aluminum sheet, and sound-absorbing material is adhered to the partitions. Sound-absorbing material is also installed in certain areas inside the air duct. The air duct 15 is connected to the frame beam 12 using T-bolts to ensure that the air duct and the grille profile are tightly pressed together. Flanges are used to connect the air ducts to ensure airtightness.

[0102] Specifically, the Zhongding 14 has two installation options:

[0103] Option 1: The entire central roof 14 is a square light, composed of a light body, profile, and lampshade, installed in the middle of the grille profile, serving both as a passenger interface and lighting function. Part of the light body's support structure is an aluminum honeycomb panel, with the light-emitting panel, plug, and wiring mounted on it. The lampshade is made of polycarbonate. The light body and lampshade are connected to the profile to form the entire light module, with the lampshade inserted into the profile and the light body connected to the profile using screws. The entire light module is bolted to the grille. Since the central roof 14 uses a lampshade, light-shielding material can be applied to the back of the lampshade to create different patterns and lighting colors according to customer requirements.

[0104] Option 2: The central roof body 142 is a perforated aluminum plate, and the central roof light module 143 is a ring-shaped light strip. The central roof light module 143 is integrated into the pre-drilled mounting holes in the perforated aluminum plate of the central roof body 142. The ring-shaped light strip is press-fitted to the back of the central roof body 142 with screws, so that the ring-shaped light strip is closely attached to the back of the central roof body 142.

[0105] To increase illumination, two lighting strips are added between the center roof light module 143 and the grille profile 11 in the center roof body 142. The slider nut 141 and the nut slider of the center roof body 142 are connected by the mounting positioning interface 118. The slider nut 141 can slide and adjust in the length direction of the vehicle, and has a limit in the width direction so that it will not come off or separate. At the same time, it is convenient to screw in the screws from bottom to top to fix the roof plate.

[0106] The two sides of the central roof body 142 provide sliding nuts for the installation of lighting strips. After the central roof body 142 is installed, the lighting strips can be installed, and the lampshades are installed through the slots of the lighting strip profiles. The back of the central roof body 142 also has a camera mounting interface for integrated camera installation.

[0107] Specifically, as shown in Figures 12 and 13-1, the top edge module 2 and the top edge mounting flange 115 of the grille are fixedly connected by the top edge hinge 21, and the lower side of the top edge module 2 is unclamped to the side wall of the train by a lock.

[0108] The top edge module 2 can be opened to more than 90° to facilitate the maintenance of electrical components within it. The top edge module 2 has a 20mm high flange on its upper side to conceal the top edge hinge 21 and the concealed light strip 17. The distance between the flange and the grille profile 11 is 16.5mm, ensuring the concealment of the concealed light strip.

[0109] The top edge module 2 is made of two aluminum profiles welded together. A light strip cavity 24 is designed at the connection with the side wall, and a lighting source board is installed inside the light strip cavity.

[0110] A return air vent 23 is provided on the side of the side-top module facing the train. Fins are provided on the lower side of the side-top module to shield the connection to the side wall, ensuring functionality while concealing the internal structure of the side-top module. A side-top hinge 21 is designed at the connection point with the grille profile, ensuring the coaxiality and installation accuracy of the side-top hinges 21 on the same top plate module 2.

[0111] The back of the side-top module 2 features a sliding groove that acts as a reinforcing rib and provides mounting interfaces for electrical components (including dynamic maps, speakers, and smoke detectors). The electrical components are pre-assembled with the side-top module 2 under the vehicle and then modularly installed, improving assembly efficiency.

[0112] The integrated device on the top of the train according to this application has the following technical advantages:

[0113] 1. The integrated roof device of this application, through modular and integrated design, creates a roof integrated device with ventilation, lighting, passenger interface decoration, handrails, and integrated installation of lighting and cameras. The roof frame, air ducts, central roof, and handrails are pre-assembled under the train body and installed on the train in a modular form. Installation on the train body is achieved only through the frame crossbeams and hangers. Compared to the prior art, where each part and functional component is assembled sequentially, this reduces installation steps, simplifies the installation process, and significantly shortens the roof assembly time, saving approximately 122 hours of labor time.

[0114] 2. Because the integrated top assembly of the train in this application is installed modularly, the internal components of the integrated parts (i.e., the central module and the side top modules) are already assembled before being installed on the train. During installation, only the errors and gaps between the central modules and the side top modules need to be adjusted, without the need to adjust the gaps and errors between the individual components sequentially. This improves the main assembly efficiency and shortens the vehicle manufacturing cycle. Since the above components are not supplied as a whole, the procurement method remains unchanged, and the procurement products can continue to use suppliers of mature components.

[0115] 3. A square light fixture serves as the central ceiling light, combining interior lighting with passenger interface decoration. The light cover is made of polycarbonate sheet material, and light-shielding material can be pasted inside the cover. Different patterns can be designed according to the owner's needs, offering a wide range of choices. The manufacturing process is simple and the production cost is low. The central ceiling no longer uses a spray painting process, making the passenger interior more environmentally friendly and improving interior comfort.

[0116] In the description of this application, it should be understood that the terms "front", "rear", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0117] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0118] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly; taking connection as an example, it can be a direct connection or an indirect connection through an intermediate medium, and can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0119] Although some optional embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including some optional embodiments as well as all changes and modifications falling within the scope of this application.

[0120] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A roof-mounted integrated device for a train, characterized in that, include: Multiple central modules, each central module is assembled from a roof frame, central roof, air duct, handrail and light strip, and is pre-assembled under the train to form a central module; One central module corresponds to two side top modules. The side top modules have return air grilles and lamp covers, and are pre-assembled under the train to form side top modules. The two side top modules are connected to the two sides of the central module respectively, and the other side of the side top modules is connected to the two side walls of the train respectively.

2. The integrated roof device for a train according to claim 1, characterized in that, The top plate frame is the mounting base for the top integrated device; the top plate frame includes a grid profile. The cross-section of the grid profile has three transversely arranged first grid chamber, second grid chamber, and third grid chamber; The second grille chamber is rectangular, with a grille air inlet at the top for connecting with the air duct, and a grille air outlet at the bottom for blowing air into the train. The first grid chamber is rectangular, and the top of the grid profile has a grid center top mounting flange extending out of the first grid chamber; wherein, the grid center top mounting flange is used for center top mounting with the top integrated device; The third grid chamber is a right-angled trapezoid, and an inclined groove for the top of the grid is provided on the hypotenuse of the third grid chamber; the bottom of the third grid chamber has a grid edge mounting flange.

3. The integrated roof device for a train according to claim 2, characterized in that, The grating profile is provided with grating beam mounting and positioning interfaces and nut slider mounting and positioning interfaces at intervals along its length.

4. The integrated roof device for a train according to claim 3, characterized in that, The top plate frame also includes: The frame beam has two full-length frame beam outer top mounting interfaces on its outer top, two full-length frame beam inner top mounting interfaces on its bottom surface, and one full-length frame beam side mounting interface on each of its two sides. The frame beam hangers are used to connect the entire middle module to the top of the train body. The two ends of the outer top of each frame beam are connected to the frame beam hangers through two frame beam outer top mounting interfaces. The frame beam is positioned at the mounting and positioning interface of the grid beam and connected by a connector. The frame beam and the grid profile are also connected by a connector, an inclined groove at the top of the grid, and the end of the frame beam's outer top mounting interface.

5. The integrated roof device for a train according to claim 4, characterized in that, There are two air ducts, each located above the grille profile; The air duct is fixed by connecting its own L-shaped connecting ears, fasteners and frame crossbeam outer top mounting interface on both sides.

6. The integrated roof device for a train according to claim 5, characterized in that, The bottom of the first grid chamber has a through hole for a handrail, the top of the first grid chamber has a handrail mounting interface, and the side of the first grid chamber has a handrail mounting window. The top of the handrail passes through the bottom handrail through the through hole and is connected to the top of the handrail with a handrail installation interface, a frame beam inner top installation interface and fasteners, so as to realize the installation of the handrail, the grid profile and the frame beam. The handrail installation window is used for installers to install the handrail. The handrail and the frame beam hanger are installed back to back.

7. The integrated roof device for a train according to claim 6, characterized in that, The two sides of the central top have multiple sliding nuts; The central top and the grid profile are connected by the slider nut and the nut slider mounting and positioning interface; The slider nut is capable of sliding within a preset range along the length direction of the center top in the nut slider mounting and positioning interface 118.

8. The integrated roof device for a train according to claim 7, characterized in that, The central ceiling includes a central ceiling body and a central ceiling light module; The central overhead light module is installed in the central overhead light module installation window position reserved in the central overhead main body by fasteners.

9. The integrated roof device for a train according to claim 8, characterized in that, A side top hinge is fixed to the upper side of the side top module, and the side top module and the grid side top mounting flange are fixedly connected by the side top hinge; The lower side of the side-top module is unclamped to the side wall of the train via a lock.

10. The integrated roof device for a train according to claim 9, characterized in that, The edge-top module also includes: Edge ceiling light strip; The side top module has a return air vent on the side facing the ground of the train, and a light strip cavity is provided on the lower side of the side top module, with the side top light strip fixed inside the light strip cavity.

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