Top cap beam lightweight assembly structure for commercial vehicle
By designing a lightweight assembly structure for commercial vehicle roof beams, and employing fixed plates, reinforcing ribs, buffer plates, and buffer components, the problem of insufficient buffering in roof beam structures is solved, achieving effective force absorption and dispersion, reducing the risk of personal injury, and providing fireproof and heat insulation protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-03-31
AI Technical Summary
The existing roof beam structure of commercial vehicles lacks an effective buffering mechanism, causing the impact force to be directly transmitted into the vehicle, failing to effectively absorb and disperse energy, and posing a serious risk of deformation and personal injury.
Design a lightweight assembly structure for roof beams of commercial vehicles, including a fixed plate, reinforcing ribs, a buffer plate, and a buffer assembly. The buffer plate and buffer assembly work together to absorb and disperse impact forces, while the reinforcing ribs provide support. Combined with fireproof and heat insulation panels, safety is improved.
It effectively cushions the stress on the roof, reduces the risk of injury to occupants, improves safety and reliability, and also has fireproof and heat insulation functions.
Smart Images

Figure CN224061052U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of roof technology for commercial vehicles, and more particularly to a lightweight assembly structure for roof beams of commercial vehicles. Background Technology
[0002] Commercial vehicle roofs protect the driver, passengers, and cargo from external environmental factors such as sunlight, rain, wind, sand, and snow, preventing items inside the vehicle from getting damp or damaged. As part of the vehicle body structure, the roof plays an important role in the overall rigidity and stability of the commercial vehicle, helping to distribute various forces during vehicle operation and improving the vehicle's safety and reliability.
[0003] When a vehicle is subjected to external impacts, such as rollovers or roof collisions, the existing roof beam structure lacks an effective buffering mechanism, causing the impact force to be directly transmitted to the vehicle's interior space, failing to effectively absorb and disperse energy. This can not only lead to severe deformation of the roof but also pose a significant risk of injury to occupants, failing to adequately guarantee their safety. With the increasing demands for safety and energy efficiency in commercial vehicles, developing a roof beam structure that meets lightweight requirements while effectively buffering roof stress and reducing the risk of injury to occupants has become an urgent problem to solve. Therefore, we propose a lightweight roof beam assembly structure for commercial vehicles. Utility Model Content
[0004] This application provides a lightweight assembly structure for a roof beam of a commercial vehicle to solve the problem of roofs being unable to provide cushioning.
[0005] This application provides a lightweight assembly structure for a roof beam of a commercial vehicle, including a roof and further comprising:
[0006] A fixing plate is fixedly installed at the bottom of the top cover. Two first reinforcing ribs are fixedly installed at the top of the fixing plate. A second reinforcing rib is fixedly installed at the top of the fixing plate and between the two first reinforcing ribs. Several second buffer plates are fixedly installed on both sides of the second reinforcing ribs. Several first buffer plates are fixedly installed on the opposite side of the two first reinforcing ribs. A heat insulation plate is fixedly installed inside the top cover. A fireproof plate is fixedly installed inside the heat insulation plate.
[0007] Two sets of buffer components, both of which are located on top of the fixed plate and are used for cushioning.
[0008] Preferably, the buffer component includes:
[0009] A fixing block is fixedly installed at the bottom of the top cover. Two connecting plates are fixedly installed at the top of the fixing plate. A sliding groove is opened in the connecting plate. A damping rod is fixedly installed in the sliding groove. A spring is sleeved in the sliding groove and on the damping rod. A round rod is fixedly installed at one end of the damping rod and in the sliding groove. One end of the round rod passes through one side of the sliding groove and extends to the outside.
[0010] Two U-shaped plates are fixedly installed on both sides of the fixed block, and a connecting rod that is rotatably connected to one end of a round rod is rotatably installed inside the U-shaped plates.
[0011] Preferably, the two ends of the spring are tightly welded to the other end of the round rod and the inner wall of the groove, respectively, and the connecting rod is inclined.
[0012] Preferably, a plurality of the second buffer plates are linearly and equally spaced, and a plurality of the first buffer plates are linearly and equally spaced.
[0013] Preferably, the second buffer plate is fixedly connected to the fixing plate and the top cover, and the first buffer plate is fixedly connected to the fixing plate and the top cover.
[0014] Preferably, the U-shaped plate and the corresponding fixing block are integrally formed.
[0015] Preferably, the fixing blocks are located on both sides of the second reinforcing rib and between the two first reinforcing ribs. Beneficial effects
[0016] This lightweight roof beam assembly structure for commercial vehicles, through the cooperation of a first buffer plate, a second buffer plate, a first reinforcing rib, a second reinforcing rib, and two sets of buffer components, ensures effective buffering of the forces received by the roof, effectively reducing the risk of injury to occupants and making it safer and more reliable to use.
[0017] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1This is a schematic diagram of the overall structure of a lightweight assembly for a roof beam of a commercial vehicle according to the present invention.
[0020] Figure 2 This is a schematic diagram of the regional structure of a lightweight assembly fixing plate for a roof beam of a commercial vehicle according to the present invention.
[0021] Figure 3 This is a schematic diagram of the regional structure of a lightweight assembly fixing block for a roof beam of a commercial vehicle according to the present invention.
[0022] Figure 4 This utility model relates to a lightweight assembly structure for roof beams of commercial vehicles. Figure 3 Enlarged structural diagram at point A;
[0023] Figure 5 This is an exploded structural diagram of the heat insulation board and fireproof board of a lightweight assembly structure for a roof beam of a commercial vehicle according to this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Top cover; 2. Fixing plate; 3. First reinforcing rib; 4. First buffer plate; 5. Connecting plate; 6. Second buffer plate; 7. Second reinforcing rib; 8. Round rod; 9. Connecting rod; 10. U-shaped plate; 11. Fixing block; 12. Damping rod; 13. Slide groove; 14. Spring; 15. Heat insulation board; 16. Fireproof board. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0028] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0029] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0032] This utility model provides, for example Figure 1-5 The illustrated lightweight assembly structure for a commercial vehicle roof beam includes a roof 1 and further comprises:
[0033] A fixing plate 2 is fixedly installed at the bottom of the top cover 1. Two first reinforcing ribs 3 are fixedly installed at the top of the fixing plate 2. A second reinforcing rib 7 is fixedly installed at the top of the fixing plate 2 and between the two first reinforcing ribs 3. Several second buffer plates 6 are fixedly installed on both sides of the second reinforcing rib 7. Several first buffer plates 4 are fixedly installed on the opposite side of the two first reinforcing ribs 3. A heat insulation plate 15 is fixedly installed inside the top cover 1. A fireproof plate 16 is fixedly installed inside the heat insulation plate 15.
[0034] Two sets of buffer components are located on top of the fixed plate 2 and are used for buffering.
[0035] In use, when the top cover 1 is impacted, the downward force on the top cover 1 can be buffered by the action of several second buffer plates 6 and several first buffer plates 4. Furthermore, the two buffer components can achieve a buffering effect on the top cover 1. The second reinforcing rib 7 and two first reinforcing ribs 3 can provide strong support for the force on the side of the top cover 1. The fireproof plate 16 can play a fireproof role, and the heat insulation plate 15 can play a heat insulation role.
[0036] In this embodiment, the buffer component includes:
[0037] A fixing block 11 is fixedly installed at the bottom of the top cover 1. Two connecting plates 5 are fixedly installed at the top of the fixing plate 2. A sliding groove 13 is opened in the connecting plate 5. A damping rod 12 is fixedly installed in the sliding groove 13. A spring 14 is sleeved in the sliding groove 13 and on the damping rod 12. A round rod 8 is fixedly installed at one end of the damping rod 12 and in the sliding groove 13. One end of the round rod 8 passes through one side of the sliding groove 13 and extends to the outside.
[0038] Two U-shaped plates 10 are fixedly installed on both sides of the fixed block 11. A connecting rod 9, which is rotatably connected to one end of the round rod 8, is rotatably installed inside the U-shaped plate 10.
[0039] When the fixed block 11 is compressed and moves downward, the fixed block 11 will drive the two U-shaped plates 10 to move downward respectively. One end of the connecting rod 9 will rotate inside the U-shaped plate 10, and the other end of the connecting rod 9 will rotate inside the round rod 8. At this time, the connecting rod 9 will compress the round rod 8 to move, and the round rod 8 will drive the damping rod 12 to contract, thereby buffering the force generated by the round rod 8. At the same time, the spring 14 will contract when compressed, which can enhance the buffering effect.
[0040] In this embodiment, the two ends of the spring 14 are tightly welded to the other end of the round rod 8 and the inner wall of the groove 13, respectively, and the connecting rod 9 is inclined.
[0041] This ensures the structural stability of spring 14 and guarantees that connecting rod 9 can rotate normally.
[0042] In this embodiment, a plurality of second buffer plates 6 are linearly and equally spaced, and a plurality of first buffer plates 4 are linearly and equally spaced.
[0043] Specifically, this ensures that the second buffer plate 6 can provide effective buffering, and also ensures that the first buffer plate 4 can provide effective buffering.
[0044] In this embodiment, the second buffer plate 6 is fixedly connected to the fixed plate 2 and the top cover 1, and the first buffer plate 4 is fixedly connected to the fixed plate 2 and the top cover 1.
[0045] Specifically, it ensures the structural stability between the second buffer plate 6, the fixed plate 2, and the top cover 1, and guarantees the structural stability between the first buffer plate 4, the fixed plate 2, and the top cover 1.
[0046] In this embodiment, the U-shaped plate 10 and the corresponding fixing block 11 are integrally formed.
[0047] Among these measures, it is essential to ensure the structural stability between the U-shaped plate 10 and the fixing block 11.
[0048] In this embodiment, the fixing block 11 is located on both sides of the second reinforcing rib 7 and between the two first reinforcing ribs 3.
[0049] Among these measures, it is ensured that the downward force of the top cover 1 can be effectively buffered.
[0050] It is worth noting that both the first buffer plate 4 and the second buffer plate 6 are made of polypropylene buffer plates, which are lightweight, highly resistant to chemical corrosion, and have good toughness.
[0051] Working Principle: When this lightweight assembly structure for a commercial vehicle roof beam is in use, when the roof 1 is impacted, the downward force on the roof 1 can be buffered by the action of several second buffer plates 6 and several first buffer plates 4. Furthermore, when the fixing block 11 is squeezed and displaced downward, the fixing block 11 will drive the two U-shaped plates 10 to displace downward respectively. One end of the connecting rod 9 will rotate inside the U-shaped plate 10, and the other end of the connecting rod 9 will rotate inside the round rod 8. At this time, the connecting rod 9 will squeeze the round rod 8 to displace, and the round rod 8 will drive the damping rod 12 to contract, thereby buffering the force generated by the round rod 8. At the same time, the spring 14 will be compressed and contracted, which can enhance the buffering effect. Under the action of the second reinforcing rib 7 and the two first reinforcing ribs 3, it can strongly support the force on the side of the roof 1. Furthermore, under the action of the fireproof plate 16, it can play a fireproof role, and under the action of the heat insulation plate 15, it can play a heat insulation role.
[0052] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A lightweight roof header assembly structure for a commercial vehicle comprising a roof (1), characterized in that, Also include: The fixed plate (2) is fixedly installed at the bottom of the top cover (1), the top of the fixed plate (2) is fixedly installed with two first reinforcing ribs (3), the top of the fixed plate (2) and between the two first reinforcing ribs (3) is fixedly installed with a second reinforcing rib (7), both sides of the second reinforcing rib (7) are fixedly installed with a plurality of second buffer plates (6), the opposite side of the two first reinforcing ribs (3) is fixedly installed with a plurality of first buffer plates (4), the top cover (1) is fixedly installed with a heat insulation plate (15), the heat insulation plate (15) is fixedly installed with a fireproof plate (16); Two groups of buffer assemblies, two groups of the buffer assemblies are located on the top of the fixed plate (2), and are used for buffering.
2. A roof-rail lightweight assembly structure for a commercial vehicle as defined in claim 1, characterized in that: The buffer assembly comprises: The fixed block (11) is fixedly installed at the bottom of the top cover (1), the top of the fixed plate (2) is fixedly installed with two connecting plates (5), the connecting plate (5) is provided with a sliding groove (13), the sliding groove (13) is fixedly installed with a damping rod (12), the sliding groove (13) is fixedly installed with a spring (14) on the damping rod (12), one end of the damping rod (12) and in the sliding groove (13) is fixedly installed with a round rod (8), one end of the round rod (8) penetrates through one side of the sliding groove (13) and extends to the outside; Two U-shaped plates (10) are fixedly installed on both sides of the fixed block (11), and the U-shaped plate (10) is rotatably installed with a connecting rod (9) rotatably connected with one end of the round rod (8).
3. A roof-rail lightweight assembly structure for a commercial vehicle as defined in claim 2, characterized in that: Both ends of the spring (14) are tightly welded with the other end of the round rod (8) and the inner wall of the sliding groove (13), and the connecting rod (9) is inclined.
4. A roof-rail lightweight assembly structure for a commercial vehicle of claim 1, characterized in that: A plurality of second buffer plates (6) are linearly and equally spaced, and a plurality of first buffer plates (4) are linearly and equally spaced.
5. A roof-rail lightweight assembly structure for a commercial vehicle of claim 1, characterized in that: The second buffer plate (6) is fixedly connected with the fixed plate (2) and the top cover (1), and the first buffer plate (4) is fixedly connected with the fixed plate (2) and the top cover (1).
6. A roof-rail lightweight assembly structure for a commercial vehicle of claim 3, characterized in that: The U-shaped plate (10) and the corresponding fixed block (11) are an integral structure.
7. A roof-rail lightweight assembly structure for a commercial vehicle of claim 2, characterized in that: The fixed block (11) is located on both sides of the second reinforcing rib (7) and between the two first reinforcing ribs (3).