Middle roof plate air duct integrated structure of rail transit vehicle

Abstract

The invention provides a rail transit vehicle middle top plate air duct integrated structure which comprises a middle top plate and an air conditioner air supply duct, the air conditioner air supply duct is of a groove structure and is reversely buckled on the middle top plate, and the two sides of the air conditioner air supply duct are connected with the middle top plate through connecting profiles; the connecting profile is of a T-shaped structure, the upper side of the vertical part of the connecting profile is tightly attached to the air conditioner air supply duct, the lower side of the vertical part of the connecting profile is tightly attached to the side edge of the middle top plate and provided with a groove where the middle top plate is inserted, and the upper side of the transverse part of the connecting profile is provided with a groove where a side panel of the air conditioner air supply duct is inserted. And the connecting profile is filled with a sealant.

Description

Technical Field

[0001] This invention belongs to the field of rail vehicle manufacturing technology, and in particular relates to an integrated structure for roof ventilation ducts in rail transit vehicles. Background Technology

[0002] The roof panel of a rail transit vehicle is one of the main components that constitute the interior decoration of the vehicle. Combined with other interior components, it provides passengers with a good in-vehicle environment. At the same time, it is also a carrier for installing various other functional devices on the vehicle, such as air vents, lights and various inspection doors. The air conditioning duct directly affects the temperature, airflow speed distribution and thermal comfort of the carriage.

[0003] In the past, the roof panel and air conditioning ducts were designed and manufactured independently for rail transit vehicles, each with its own internal and installation structures. This increased weight and reduced the utilization of roof space. Furthermore, the roof panel could only be installed and adjusted after the air conditioning ducts were installed during the assembly process. This not only occupied assembly space and required significant manpower, but also significantly hampered the assembly process and safety. In addition, the production, transportation, and storage of the roof panel and air conditioning ducts also resulted in waste of labor, capital, and space. Summary of the Invention

[0004] This invention aims to solve the problems of separate roof panels and air conditioning ducts, which result in large weight, low space utilization, and low assembly efficiency. It provides an integrated structure for the roof panels and air conditioning ducts in rail transit vehicles, which reduces the overall weight of the roof panels and air conditioning ducts, improves the utilization of vehicle roof space, enhances assembly processability and safety, and saves site preparation time, money, and labor costs.

[0005] To achieve the above-mentioned objectives, this invention provides an integrated structure for the roof duct of a rail transit vehicle, comprising a roof panel and an air conditioning duct. The air conditioning duct is a groove structure and is inverted on the roof panel. Both sides of the air conditioning duct are connected to the roof panel via connecting profiles. The connecting profile is a T-shaped structure, with its upper vertical side closely attached to the air conditioning duct and its lower vertical side closely attached to the side edge of the roof panel and having a groove for inserting into the roof panel. The upper horizontal side of its connecting profile has a groove for inserting into the side panel of the air conditioning duct. The connecting profile is filled with sealant.

[0006] Furthermore, an L-shaped connecting code is provided at the junction of the internal partition of the air conditioning air duct and the middle top plate, and the connecting code connects the internal partition and the middle top plate by riveting.

[0007] Furthermore, the end of the air conditioning air duct is provided with a sealing plate, which is a wrapping structure that conforms to the cross-section of the duct and is fixed by bending and riveting.

[0008] Furthermore, the end caps of the top plate are reinforced with reinforcing ribs at both ends; the upper part of the adjacent top plates is provided with a pair of matching profile structures as reinforcing ribs, and the pair of profile structures are respectively bonded to the two sides of the adjacent top plates; the two matching profiles of the reinforcing ribs are each provided with a protruding overlapping plate on the adjacent surface, and after assembly, the two overlapping plates overlap each other, and a pre-placed nut is provided on the upper overlapping plate, forming a groove on the lower side of the overlapping position.

[0009] Furthermore, the groove and the outer top plate form a cavity, a slider slides into the cavity, and the slider is connected and fixed to the pre-placed nut in the reinforcing rib by countersunk screws; a decorative baffle is provided in the cavity outside the slider.

[0010] Furthermore, the integrated structure is connected to the roof slide via a mounting bracket, and the mounting bracket has elongated holes on both its vertical and horizontal surfaces.

[0011] Furthermore, slow rebound foam 6 is bonded to the end of the air duct integrated unit. After the adjacent integrated structures are installed, the slow rebound foam is pre-compressed by clamping the pressure plate with a clamp, and the pressure plates belonging to the two adjacent integrated structures are connected and fixed by fasteners.

[0012] Furthermore, the integrated structure has an air outlet and / or branch duct interface integrated on its side.

[0013] This invention integrates the roof panel and air conditioning duct, reducing the installation structure of these components. This lowers the overall structural weight while improving roof space utilization and assembly processability. Furthermore, the integrated structure allows for single-stage production and assembly during manufacturing, transportation, storage, and assembly, effectively saving on space, capital, and labor costs. Attached Figure Description

[0014] Figure 1 This is an assembly diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention;

[0016] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the connection of reinforcing bar 7;

[0018] Figure 5 This is a schematic diagram of the connection via connecting profile 3.

[0019] The components include: 1. Top plate; 2. Air conditioning duct; 3. Connecting profile; 4. Connecting bracket; 5. Sealing plate; 6. Slow rebound foam; 7. Reinforcing rib; 8. Mounting bracket; 9. Pressure plate; 10. Sliding block; 11. Stop bar. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this invention, the following detailed description of an integrated roof duct structure for rail transit vehicles, in conjunction with the accompanying drawings, is provided.

[0021] Reference Figure 1 The integrated structure of the roof duct in rail transit vehicles includes multiple duct integration units. Each duct integration unit includes a roof duct 1, an air conditioning supply duct 2, a connecting profile 3, a connecting bracket 4, a sealing plate 5, slow rebound foam 6, a reinforcing rib 7, a mounting bracket 8, a pressure plate 9, a slider 10, and a baffle 11.

[0022] The specific implementation method is as follows: The main body of the air conditioning air supply duct 2 is a groove structure, which is upside down on the middle top plate 1. The two sides are connected to the middle top plate 1 through connecting profiles 3, and the inside of the profiles is filled with sealant for sealing. The connecting profiles 3 are T-shaped in general, and are inserted from the contact position between the air conditioning air supply duct 2 and the middle top plate 1. The upper vertical side is close to the air conditioning air supply duct 2, and the lower side is close to the side edge of the middle top plate 1 and has a groove for inserting into the middle top plate; the upper horizontal side has a groove for inserting the side panel of the air conditioning air supply duct 2.

[0023] An L-shaped connecting bracket 4 is installed at the junction of the internal partition and the middle top plate 1 of the air conditioning air supply duct 2. The internal partition and the middle top plate 1 are connected by riveting to reinforce the structure of the middle top plate 1. A sealing plate 5 is installed at the end of the air conditioning air supply duct 2 for structural reinforcement. The sealing plate 5 is an end edge wrapping, which follows the shape of the duct cross section, bends and wraps the outside, and then is riveted and fixed.

[0024] For two adjacent integrated air duct units, the end caps 5 of the top plate 1 are bonded with reinforcing ribs 7 to both ends to strengthen the structure of the top plate. Reinforcing ribs 7 are installed on the upper part of adjacent top plates 1. Each reinforcing rib 7 is a pair of mating profiles bonded to both sides of the adjacent top plates. Each mating profile of the reinforcing rib 7 has a protruding plate on its adjacent surface. After assembly, the two protruding plates overlap, and a pre-installed nut is provided on the upper overlapping plate. A groove is formed on the lower side of the overlap position, forming a cavity with the outer top plate. A slider 10 slides into the cavity and is connected and fixed to the pre-installed nut in the reinforcing rib 7 with countersunk screws. A baffle 11 is installed in the cavity outside the slider 10. Slow-rebound foam 6 is bonded to the end of the integrated air duct unit.

[0025] The central top plate 1, air conditioning air supply duct 2, connecting profile 3, sealing plate 5, and reinforcing rib 7 work together, and sealant is applied to the structural gaps to ensure the overall airtightness of the structure. In addition, air outlets and branch duct interfaces can be integrated on the sides of the entire device.

[0026] During work (see) Figure 1 The air duct integrated unit is connected to the roof sliding groove via a mounting bracket 8. The mounting bracket 8 has elongated holes on both the vertical and horizontal surfaces, ensuring the integrated structure has three-way assembly adjustability. After adjacent air duct integrated units are installed, clamping plates 9 are used to pre-compress the slow-rebound foam 6, and fasteners are used to connect and fix the plates 9 belonging to the two adjacent integrated structures, thus ensuring the airtightness of the air conditioning duct at the connection point. Finally, a slider 10 is slid into the cavity formed by the reinforcing rib 7 and the top plate of the adjacent integrated structure, and countersunk screws are used to connect and fix the slider to the pre-placed nut in the reinforcing rib 7, thus ensuring that the middle top plate of the adjacent integrated structure is flat and without misalignment after assembly. After the middle top plate is leveled, decorative baffles 11 are inserted into the cavity formed by the reinforcing rib 7 and the top plate of the adjacent integrated structure to make the gaps aesthetically pleasing, completing the process.

Claims

1. An integrated structure for the roof duct of a rail transit vehicle, comprising a roof duct (1) and an air conditioning supply duct (2), characterized in that: The air conditioning air supply duct (2) is a groove structure and is upside down on the top plate (1). The two sides of the air conditioning air supply duct (2) are connected to the top plate (1) through connecting profiles (3). The connecting profiles (3) are T-shaped structures. The upper side of its vertical part is close to the air conditioning air supply duct (2), and the lower side is close to the side edge of the top plate (1) and has a groove for inserting into the top plate (1). The upper side of its horizontal part has a groove for inserting into the side panel of the air conditioning air supply duct (2). The connecting profiles (3) are filled with sealant.

2. The integrated roof ventilation duct structure for rail transit vehicles according to claim 1, characterized in that: An L-shaped connecting code (4) is provided at the junction of the internal partition of the air supply duct (2) and the middle top plate (1). The connecting code (4) connects the internal partition and the middle top plate (1) by riveting.

3. The integrated roof ventilation duct structure for rail transit vehicles according to claim 1, characterized in that: The end of the air conditioning air supply duct (2) is provided with a sealing plate (5), which is a edging structure that conforms to the cross-section of the duct and is fixed by bending and riveting.

4. The integrated roof ventilation duct structure for rail transit vehicles according to claim 1, characterized in that: The end caps (5) of the top plate (1) are bonded with reinforcing ribs (7) at both ends; the upper part of the adjacent top plate (1) is provided with a pair of matching profile structures as reinforcing ribs (7), and the pair of profile structures are bonded to the two sides of the adjacent top plate (1); the two matching profiles of the reinforcing rib (7) are each provided with a protruding overlapping plate on the adjacent surface. After assembly, the two overlapping plates overlap each other, and a pre-placed nut is provided on the overlapping plate on the upper side, forming a groove on the lower side of the overlapping position.

5. The integrated roof ventilation duct structure for rail transit vehicles according to claim 4, characterized in that: The groove and the outer top plate (1) form a cavity. A slider (10) slides into the cavity and is connected and fixed to the pre-set nut in the reinforcing rib (7) by countersunk screws. A decorative baffle (11) is provided in the cavity outside the slider (10).

6. The integrated roof ventilation duct structure for rail transit vehicles according to claim 1, characterized in that: The integrated structure is connected to the roof slide via a mounting bracket (8), and the mounting bracket (8) has elongated holes on both its vertical and horizontal surfaces.

7. The integrated roof ventilation duct structure for rail transit vehicles according to claim 4, characterized in that: The end of the air duct integrated unit is bonded with slow rebound foam 6. After the adjacent integrated structure is installed, the slow rebound foam (6) is pre-compressed by clamping the pressure plate (9) with a clamp, and the pressure plates (9) belonging to the two adjacent integrated structures are connected and fixed by fasteners.

8. The integrated roof ventilation duct structure for rail transit vehicles according to claim 1, characterized in that: The integrated structure has air outlets and / or branch duct interfaces integrated on its side.

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