Straddle-type monorail vehicle roof profile structure and straddle-type monorail vehicle

Abstract

The utility model provides a straddle type monorail vehicle roof section structure and straddle type monorail vehicle relates to rail transit vehicle technical field, and the roof section structure includes side beam section bar, air conditioner roof section bar and top section bar, two top section bars are connected in the both ends of air conditioner roof section bar in the vehicle length direction, two side beam section bars are symmetrically laid in the vehicle width direction, and the side wall of side beam section bar is connected with air conditioner roof section bar and the side wall of top section bar, wherein the upper surface of side beam section bar is cambered surface, the upper surface of top section bar is arc surface, the upper surface of air conditioner roof section bar is plane, and is installed with air conditioner positioning section bar on the plane. The problem that the traditional roof section structure is corroded, the welding area is damaged and the air conditioning equipment safety hidden danger are caused by the water pan of recessed step in the rain and snow weather or when washing are solved.

Description

Technical Field

[0001] This utility model relates to the field of rail transit vehicle technology, specifically to a straddle-type monorail vehicle roof profile structure and a straddle-type monorail vehicle. Background Technology

[0002] Straddle-type monorail transit systems, as a medium-capacity urban rail transit system with strong climbing ability and a small turning radius, have been widely used in recent years. As the core carrier of this system, the design and manufacturing of the monorail vehicle's body structure directly affects the vehicle's operational safety, passenger comfort, and maintenance costs. The roof, as an important component of the body structure, not only houses critical equipment such as air conditioning units but also requires sufficient strength, rigidity, and good sealing and waterproofing performance.

[0003] In the traditional design of straddle-type monorail vehicle roofs, a recessed step structure is typically incorporated into the roof profile to accommodate and position the air conditioning unit. While this recessed structure meets the installation requirements, it also presents significant drawbacks: First, the recessed area forms a natural "water trap," where water easily accumulates during rain, snow, or vehicle washing and is difficult to drain naturally. Second, long-term water accumulation accelerates corrosion of the profiles and their connections, particularly posing a potential threat to welded areas, affecting structural lifespan and safety. Furthermore, water accumulation and a humid environment can also adversely affect the air conditioning unit itself and its wiring interfaces. Utility Model Content

[0004] The problem solved by this utility model is that the recessed area of ​​the air conditioner installation area is prone to water accumulation and corrosion, which is a problem in the prior art.

[0005] To address the aforementioned problems, this utility model provides a straddle-type monorail vehicle roof profile structure and a straddle-type monorail vehicle.

[0006] In the first aspect, this utility model provides a roof profile structure for a straddle-type monorail vehicle, including a side beam profile, an air conditioning roof profile, and a top profile; two top profiles are connected to both ends of the air conditioning roof profile in the vehicle length direction; two side beam profiles are symmetrically arranged in the vehicle width direction, and the side beam profiles are connected to the side walls of the air conditioning roof profile and the top profile. Among them, the upper surface of the side beam profile is curved; the upper surface of the top profile is curved; the upper surface of the air conditioner top profile is flat, and an air conditioner positioning profile is provided on the flat surface.

[0007] The beneficial effects of the straddle-type monorail vehicle roof profile structure of this utility model are: By optimizing the geometry of the upper surface of the roof profile, the water accumulation hazard caused by traditional recessed structures has been eliminated. Specifically, the curved design of the side beam profile allows water to flow quickly along the slope towards the vehicle's sides, effectively reducing the risk of long-term dampness at the side wall connection points; the curved design of the top profile naturally guides water flow to both sides, preventing it from accumulating in the central area of ​​the roof; the flat design of the air conditioning roof profile meets the precise positioning requirements of the air conditioning unit while avoiding water retention caused by stepped recesses, ensuring overall drainage efficiency of the roof surface. This solves the problem of water accumulation caused by recessed steps in traditional roof profile structures during rain, snow, or washing, leading to profile corrosion, damage to welded areas, and safety hazards to the air conditioning equipment.

[0008] Optionally, the air conditioner roof profile includes a top longitudinal beam profile and a top transverse beam profile; the two top longitudinal beam profiles are respectively connected to the corresponding side beam profiles by V-shaped butt welds; the two top longitudinal beam profiles are connected to both ends of the top transverse beam profile; the air conditioner positioning profile is located on the upper surface of the top longitudinal beam profile.

[0009] Optionally, the air conditioning positioning profile is provided with a positioning groove; the positioning groove extends along the length of the vehicle.

[0010] Optionally, the top profile includes a central dome profile and side dome profiles; the central dome profile is located in the middle between the two side beam profiles; the central dome profile and the side dome profiles are connected by a V-shaped butt weld; the side dome profiles and the side beam profiles are connected by a V-shaped butt weld.

[0011] Optionally, there are no fewer than two side dome profiles between the central dome profile and one side beam profile; the two side dome profiles overlap each other.

[0012] Optionally, the side of the edge beam profile away from the top profile is configured as a butt joint surface for transverse welding to the vehicle sidewall.

[0013] Optionally, the thickness of the side beam profile gradually increases along the direction from the top profile to the vehicle sidewall.

[0014] Optionally, the edge beam profile is provided with inclined tie bars.

[0015] Optionally, the lower surface of the side beam profile and / or top profile is provided with an internal mounting groove; the internal mounting groove extends along the length of the vehicle.

[0016] Secondly, this utility model provides a straddle-type monorail vehicle, including a roof profile structure for the straddle-type monorail vehicle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the roof profile structure in an embodiment of this utility model; Figure 2 This is an exploded structural diagram of the roof profile structure in an embodiment of this utility model; Figure 3 for Figure 1 Top view; Figure 4 for Figure 3 Sectional view of AA; Figure 5 for Figure 4 Enlarged view of point C in the middle; Figure 6 for Figure 3 Sectional view of BB; Figure 7 for Figure 6 Enlarged view of point D in the middle; Explanation of reference numerals in the attached figures: 1. Side beam profile; 11. Diagonal bracing; 2. Top profile; 21. Middle dome profile; 22. Side dome profile; 3. Air conditioner roof profile; 31. Top longitudinal beam profile; 32. Top transverse beam profile; 4. Air conditioner positioning profile; 5. Interior installation groove. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0019] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0020] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] Please combine Figure 1-7 This utility model discloses a roof profile structure for a straddle-type monorail vehicle, including a side beam profile 1, an air conditioning roof profile 3, and a top profile 2; two top profiles 2 are connected to both ends of the air conditioning roof profile 3 in the vehicle length direction; two side beam profiles 1 are symmetrically arranged in the vehicle width direction, and the side beam profiles 1 are connected to the side walls of the air conditioning roof profile 3 and the side walls of the top profile 2; wherein, the upper surface of the side beam profile 1 is an arc surface; the upper surface of the top profile 2 is an arc surface; the upper surface of the air conditioning roof profile 3 is a plane, and an air conditioning positioning profile 4 is provided on the plane.

[0022] The upper surface of the side beam profile 1 is curved, meaning it has a certain angle of inclination. Its main function is to guide water flow along the curved surface. Specifically, this curved surface allows rainwater to flow quickly to the sides of the vehicle, preventing water accumulation. The upper surface of the top profile 2 is also curved, meaning it has a certain radius of curvature. Its main function is to guide water flow to both sides, allowing water to naturally flow along the curved surface and preventing water from accumulating in the central area of ​​the roof. The upper surface of the air conditioning roof profile 3 is flat, meaning it has high flatness requirements. Its main function is to provide a stable base for equipment installation. The air conditioning roof profile 3 and the air conditioning positioning profile 4 can be a single piece, i.e., one profile.

[0023] Specifically, this embodiment eliminates the water accumulation hazard caused by traditional recessed structures by optimizing the geometry of the upper surface of the roof profile. Specifically, the curved design of the side beam profile 1 allows water to flow quickly along the slope towards the vehicle side, effectively reducing the risk of long-term dampness at the side wall connection points; the curved design of the top profile 2 naturally guides water flow to both sides, preventing water from accumulating in the central area of ​​the roof; the planar design of the air conditioning roof profile 3 not only meets the precise positioning requirements of the air conditioning unit but also avoids water retention caused by stepped recesses, ensuring overall drainage efficiency of the roof surface. Therefore, this embodiment solves the problem of water accumulation caused by recessed steps in traditional roof profile structures during rain, snow, or washing, leading to profile corrosion, damage to welding areas, and safety hazards to air conditioning equipment.

[0024] Optionally, the air conditioner top profile 3 includes a top longitudinal beam profile 31 and a top transverse beam profile 32; the two top longitudinal beam profiles 31 are respectively connected to the corresponding side beam profiles 1 by V-shaped butt welds; the two top transverse beam profiles 32 are connected to the two top longitudinal beam profiles 31 at both ends; the air conditioner positioning profile 4 is installed on the upper surface of the top longitudinal beam profile 31.

[0025] Among them, the top longitudinal beam profile 31 refers to the longitudinal support structure arranged along the length of the vehicle. It can be made of high-strength aluminum alloy extrusion molding, aiming to provide continuous bending resistance and ensure the rigidity of the air conditioning equipment installation area. The top transverse beam profile 32 can be understood as a transverse reinforcement set along the width of the vehicle. It can be formed by bending, aiming to enhance the lateral stability of the overall frame and prevent local deformation. The V-shaped butt weld is a welding form with an inclined bevel design. It can be completed by automated welding equipment or manual welding process, aiming to eliminate the water accumulation risk of traditional right angle welds and optimize stress distribution.

[0026] Specifically, the top longitudinal beam profile 31 is arranged along the length of the vehicle, forming the main load-bearing skeleton, which can effectively disperse the vibration load generated by the air conditioning equipment during operation and avoid local collapse due to long-term use. The top transverse beam profile 32, connected to the top longitudinal beam profile 31 at both ends, constructs a closed frame structure in the width direction of the vehicle. This design significantly improves the overall rigidity and resists the effects of lateral impact forces. The application of V-shaped butt welds not only improves rainwater drainage performance but also enhances the durability of the connection parts by increasing the welding contact area, thereby solving the problem of water accumulation and corrosion in traditional welds. In addition, the air conditioning positioning profile 4 is located on the upper surface of the top longitudinal beam profile 31. It is an integral structure with the top longitudinal beam profile 31. Utilizing the high rigidity of the top longitudinal beam profile 31, it ensures the precise positioning and secure installation of the air conditioning equipment and simplifies the assembly process. The top longitudinal beam profile 31 and the top transverse beam profile 32 together form a crisscrossing support system, giving the air conditioning top profile 3 stronger overall strength and resistance to deformation. Building upon this, the connection between the side beam profile 1 and the top longitudinal beam profile 31 further enhances the stability of the roof structure, providing a solid foundation for the reliable installation of the air conditioning equipment. Through this series of improvements, the problem of local deformation caused by the lack of internal support in the air conditioning roof profile 3 is effectively solved, while eliminating the risk of water accumulation dead corners at the connection welds, significantly improving the safety and functionality of the roof structure.

[0027] Optionally, the air conditioning positioning profile 4 is provided with a C-shaped positioning groove; the C-shaped positioning groove extends along the length of the vehicle.

[0028] Specifically, the C-type positioning groove refers to a groove structure with a certain depth and width cut into the air conditioner positioning profile 4. It can be achieved through machining, extrusion molding, or casting. In practical applications, the design of the C-type positioning groove needs to be combined with the installation interface dimensions of the air conditioning equipment to ensure that the equipment can be accurately embedded and securely fixed. Its purpose is to provide a clear installation benchmark and avoid displacement problems caused by vibration during vehicle operation.

[0029] This embodiment effectively solves the problems of equipment installation accuracy and rainwater management by integrating a C-shaped positioning groove structure into the air conditioner positioning profile 4. The concave shape of the C-shaped positioning groove can guide the air conditioning equipment to be accurately positioned. In addition, the combination of the positioning groove and the planar structure of the air conditioner top profile 3 significantly reduces the risk of corrosion and improves the durability of the overall structure.

[0030] Optionally, the top profile 2 includes a central dome profile 21 and a side dome profile 22; the central dome profile 21 is located in the middle between the two side beam profiles 1; the central dome profile 21 and the side dome profile 22 are connected by a V-shaped butt weld; the side dome profile 22 and the side beam profile 1 are connected by a V-shaped butt weld.

[0031] Specifically, the central dome profile 21 refers to a profile structure centered in the vehicle width direction and serving as the highest point of the arc-shaped surface. It can be achieved by aluminum alloy extrusion molding, with the aim of guiding rainwater to diffuse evenly to both sides along a symmetrical path, preventing water accumulation in the central area. The side dome profiles 22 refer to segmented profiles that connect with the central dome profile 21 and extend to the side beam profiles 1. They can be achieved by segmented splicing or integral molding, with the aim of precisely dividing and molding the arc-shaped surface to ensure the continuity of the drainage path.

[0032] In detail, the continuity of the roof surface is optimized through the coordinated design of the segmented top profile 2 structure and the V-shaped butt weld process. The middle dome profile 21, as the highest point, can effectively guide water flow to diffuse to both sides, avoiding drainage dead corners that may be formed by a single arc structure. The combined design of the side dome profile 22 and the middle dome profile 21 allows the arc surface to be precisely divided and formed according to the width direction of the vehicle, ensuring that water flows smoothly out along the predetermined path. The V-shaped butt weld forms a concave transition surface at the connection between the middle dome profile 21, the side dome profile 22, and the side beam profile 1, eliminating protrusions or depressions at the joints and ensuring that rainwater flows continuously along the curved surface. In addition, the curved surface design of the side beam profile 1, combined with the V-shaped weld, achieves a gradual fusion between the curved top and the curved side beam, avoiding the water accumulation basin formed by the stepped structure. This completely blocks the accumulation path of rainwater in the connection area, not only solving the water accumulation hazard caused by insufficient structural continuity in the connection area between the top profile 2 and the side beam profile 1, but also significantly improving the overall waterproof performance and structural life of the roof.

[0033] Optionally, there are no fewer than two side dome profiles 22 between the central dome profile 21 and one side beam profile 1; the two side dome profiles 22 overlap each other.

[0034] Specifically, the design of multiple transition sections makes the surface changes more gradual and gentle. The number of side dome profiles 22 is based on the geometric transformation requirements from the roof arc surface to the side beam arc surface. Its introduction aims to avoid local depressions caused by a single connection point, thereby eliminating rainwater retention areas and distributing loads to reduce the risk of stress concentration in the welding area. The overlapping design between two side dome profiles 22 means that adjacent side dome profiles 22 form a continuous surface profile by partially overlapping. This can be achieved by adjusting the lateral width of the top profile 2 after assembly welding, so that the longitudinal weld interfaces between the top profile 2, the air conditioning roof, and the roof side beam can be connected.

[0035] In detail, by setting no fewer than two side dome profiles 22, a multi-segment curved surface transition is achieved between the central dome profile 21 and the side beam profile 1. This design allows water to slide quickly down the continuous curved surface, avoiding the geometric abrupt changes that are easily formed in traditional single transition areas. Simultaneously, the overlapping method between the two side dome profiles 22 replaces the traditional V-shaped butt weld, forming a seamless surface profile. This not only strengthens the overall integrity of the structure but also reduces the possibility of corrosive media intrusion. Combined with the overall layout of the roof profile structure described above, this solution significantly improves the durability and sealing reliability of the roof during long-term use, effectively solving the problems of water accumulation and structural weaknesses in the transition area.

[0036] Optionally, the side of the side beam profile 1 away from the top profile 2 is configured as a butt joint surface for transverse welding with the vehicle sidewall.

[0037] In detail, by precisely designing the outer surface of the side beam profile 1 as a dedicated mating surface, the connection process between the roof and the side wall is significantly optimized. Specifically, this configuration not only improves the convenience and uniformity of welding operations but also fundamentally strengthens the sealing capability of the connection area, effectively blocking the intrusion path of external moisture and impurities, thereby avoiding the risk of water accumulation and corrosion. At the same time, the connection between the side beam profile 1 and the top profile 2 is further strengthened, forming a more stable overall structure. On this basis, the directional implementation of transverse welding enhances the overall rigidity and deformation resistance of the structure, providing a more reliable support foundation for the vehicle body. In addition, this design significantly improves the durability and safety of the roof-side wall joint without adding extra components, demonstrating the ingenuity of the structural design.

[0038] Optionally, the thickness of the side beam profile 1 gradually increases along the direction from the top profile 2 to the vehicle sidewall.

[0039] Specifically, the side beam profile 1 refers to the key load-bearing component in the roof structure used to connect the top profile 2 to the vehicle sidewall, which can be achieved by aluminum alloy extrusion molding. The gradually increasing thickness design can be achieved by adjusting the material distribution during the manufacturing process, such as through variable cross-section extrusion or local thickening treatment, with the aim of enhancing the structural strength of the welded area and improving corrosion resistance.

[0040] In detail, by designing the thickness of the side beam profile 1 to gradually increase from the top profile 2 towards the vehicle sidewall, the structural performance of the welded area is specifically enhanced. Since the weld occurs on the side of the side beam profile 1 away from the top profile 2 and directly connects to the vehicle sidewall, this progressively increasing thickness distribution ensures greater material thickness at the weld joint, which is prone to water accumulation, effectively improving the mechanical strength and corrosion resistance of this area. Furthermore, this design avoids stress concentration problems that can occur with uniform thickness and significantly reduces the risk of moisture penetration, enabling the welded area to better resist environmental erosion. Considering the connection relationship between the side beam profile 1 and the top profile 2, and their functional positioning as a mating surface, this progressively increasing thickness design not only optimizes local structural performance but also positively impacts the overall strength distribution and service life of the roof profile.

[0041] Through the above technical solution, the durability and reliability of the side beam profile 1 in the welding area have been significantly improved, thereby ensuring the safety and stability of the roof profile structure in long-term use.

[0042] Optionally, the side beam profile 1 is provided with inclined tie bars 11.

[0043] The diagonal bracing 11 is an internal support component used to enhance the strength and stiffness of the structure. It is formed by die extrusion and is integral with the edge beam profile 1. In practical applications, the diagonal bracing 11 optimizes the force transmission path through its inclined arrangement, which can evenly distribute the external load to the entire edge beam structure and avoid stress concentration. Its purpose is to improve the bending stiffness and torsional stability of the edge beam profile 1, while isolating it from direct contact with water accumulation and corrosive media, thus extending its service life.

[0044] Specifically, the diagonal bracing 11 within the side beam profile 1 is optimized for the direction of bending and torsional stresses during vehicle operation through its tilt angle design. During dynamic vehicle operation, the diagonal bracing 11 utilizes a tensile force transfer mechanism to transform the weight of accumulated water and dynamic loads into internal tensile stress distribution, effectively preventing local buckling. Furthermore, the combination of the diagonal bracing 11 and the gradually increasing thickness design of the side beam profile 1 further enhances the overall sealing and deformation resistance of the structure. This design not only inhibits corrosion diffusion but also significantly improves the structural integrity of the roof profile in long-term water accumulation environments.

[0045] Optionally, the lower surface of the side beam profile 1 and / or the top profile 2 is provided with an internal mounting groove 5; the internal mounting groove 5 extends along the length of the vehicle.

[0046] In practical applications, the interior mounting slot 5 can be implemented in the form of C-shaped slot, T-shaped slot, dovetail slot or rectangular slot, etc. The purpose is to provide a convenient embedded installation method for interior components and ensure the stability of the connection to cope with the vibration impact during vehicle operation.

[0047] Specifically, the interior mounting slot 5, through its slot-shaped structure, achieves guided insertion and mechanical locking of interior components, significantly reducing human error and enhancing connection stability. Furthermore, the design of the interior mounting slot 5 extending along the length of the vehicle not only matches the linear spatial layout of the vehicle but also supports the continuous, seamless installation of long, narrow interior components, reducing the number of seams and thus improving overall sealing performance and aesthetic consistency. Based on this, the solution effectively solves the misalignment problem that easily occurs during the installation of interior trim components, while improving sealing performance and maintenance efficiency, meeting the actual needs of vehicle manufacturing and maintenance.

[0048] This utility model provides a straddle-type monorail vehicle, including the straddle-type monorail vehicle roof profile structure as described above.

[0049] The beneficial effects of the straddle-type monorail vehicle in this embodiment compared to the prior art are the same as those of the roof profile structure of the straddle-type monorail vehicle described above, and will not be repeated here.

[0050] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A roof profile structure for a straddle-type monorail vehicle, characterized in that, It includes a side beam profile (1), an air conditioning roof profile (3), and a top profile (2); the two top profiles (2) are connected to the two ends of the air conditioning roof profile (3) in the vehicle length direction; the two side beam profiles (1) are symmetrically arranged in the vehicle width direction, and the side beam profiles (1) are connected to the side wall of the air conditioning roof profile (3) and the side wall of the top profile (2); The upper surface of the side beam profile (1) is an arc surface; the upper surface of the top profile (2) is an arc surface; the upper surface of the air conditioner top profile (3) is a plane, and an air conditioner positioning profile (4) is provided on the plane.

2. The straddle-type monorail vehicle roof profile structure according to claim 1, characterized in that, The air conditioner top profile (3) includes a top longitudinal beam profile (31) and a top transverse beam profile (32); the two top longitudinal beam profiles (31) are respectively connected to the corresponding side beam profiles (1) by V-shaped butt welds; the two ends of the top transverse beam profile (32) are connected to the two top longitudinal beam profiles (31); the air conditioner positioning profile (4) is located on the upper surface of the top longitudinal beam profile (31).

3. The roof profile structure of the straddle-type monorail vehicle according to claim 2, characterized in that, The air conditioning positioning profile (4) is provided with a C-shaped positioning groove; the C-shaped positioning groove extends along the length of the vehicle.

4. The roof profile structure of the straddle-type monorail vehicle according to claim 1, characterized in that, The top profile (2) includes a middle dome profile (21) and a side dome profile (22); the middle dome profile (21) is located in the middle between the two side beam profiles (1); the middle dome profile (21) and the side dome profile (22) are connected by a V-shaped butt weld; the side dome profile (22) and the side beam profile (1) are connected by a V-shaped butt weld.

5. The straddle-type monorail vehicle roof profile structure according to claim 4, characterized in that, There are at least two side dome profiles (22) between the middle dome profile (21) and one of the side beam profiles (1); the two side dome profiles (22) overlap each other.

6. The roof profile structure of the straddle-type monorail vehicle according to claim 1, characterized in that, The side of the side beam profile (1) away from the top profile (2) is configured as a mating surface for transverse welding with the vehicle sidewall.

7. The roof profile structure of the straddle-type monorail vehicle according to claim 6, characterized in that, The thickness of the side beam profile (1) gradually increases along the direction from the top profile (2) to the vehicle sidewall.

8. The roof profile structure of the straddle-type monorail vehicle according to claim 7, characterized in that, The side beam profile (1) is provided with inclined tie bars (11).

9. The straddle-type monorail vehicle roof profile structure according to any one of claims 1-8, characterized in that, The lower surface of the side beam profile (1) and / or the top profile (2) is provided with an internal mounting groove (5); the internal mounting groove (5) extends along the length of the vehicle.

10. A straddle-type monorail vehicle, characterized in that, Including the straddle-type monorail vehicle roof profile structure as described in any one of claims 1 to 9.

Images