A roof rack

Abstract

The utility model relates to the technical field of vehicle-mounted luggage rack, specifically discloses a roof luggage rack, including luggage rack body, flow guide structure and sliding expansion component, the luggage rack body includes the main frame body fixed in roof and the slide rail embedded in its inside and extends to the tail of the car, the flow guide structure is equipped in the main frame body car head end, sliding expansion component is through the slide rail and is connected with the main frame body sliding, has two states: when the driving state, it is accomodated in the main frame body, and the main frame body and flow guide structure form compact low resistance profile together, when the parking state, it can be horizontally drawn and is unfolded to the tail of the car, forms the shade cover part above the tail area, the scheme highly integrates car driving flow guide, basic bearing and parking expansion function in one, solves the problem that the structure is scattered, occupies space and installs complicatedly because of the function module dispersion, through the integrated design, realizes low wind resistance high safety when driving and the rapid space expansion when parking, has improved space utilization and operation convenience significantly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle luggage rack technology, specifically a roof luggage rack. Background Technology

[0002] With the rise of lifestyles such as self-driving camping and outdoor adventure, the function of automobiles has transcended the traditional means of transportation, becoming an important mobile space for diverse leisure activities. To expand the practicality and adaptability of vehicles, various in-vehicle extension equipment has emerged, forming a rich product ecosystem including dedicated luggage racks, awnings, and side tents, aiming to meet users' comprehensive needs in transportation, parking and rest, and logistical support. This trend has driven the continuous development of in-vehicle equipment technology towards specialization and segmentation.

[0003] In the niche market of roof racks, technological innovation mainly focuses on optimizing their core load-bearing and securing functions. For example, Chinese utility model patent CN219728037U discloses a roof rack for motorhomes. This solution achieves flexible adjustment of the height of the side panels of the rack by setting up a sliding groove, a slider, and an adjustable screw locking mechanism, thereby enabling it to better accommodate and secure goods of different sizes.

[0004] However, the aforementioned existing technical solutions optimize the roof rack as a single-function, enclosed module used only for carrying loads. If this approach is followed, users still need to install multiple independent functional modules on the roof, sides, or trunk to meet needs such as sunshade and rest. These additional modules are not only structurally fragmented and complex to install, but more importantly, they occupy and divide the extremely limited storage space of the RV, leading to reduced space utilization and cumbersome equipment storage for users in actual use. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a roof rack, which aims to solve the problems of scattered functional modules, low space utilization and inconvenient installation and storage in the prior art.

[0006] The technical solution of this utility model is implemented as follows: A roof rack includes a rack body, a flow guide structure, and a sliding extension assembly, wherein, The luggage rack body includes a main frame and a slide rail. The main frame is fixed to the roof of the vehicle, with both ends extending toward the direction of vehicle travel. The slide rail is embedded in the main frame and extends toward the rear of the vehicle. The flow guiding structure is located at the end of the main frame facing the front of the vehicle. The sliding extension component is slidably connected to the main frame via a slide rail. In the driving state: the sliding extension component is housed in the main frame, forming a compact profile together with the main frame. At this time, the airflow guiding structure is used to guide airflow to reduce wind resistance when the vehicle is in motion. In the parked state: the sliding extension component is pulled out horizontally from the main frame towards the rear of the vehicle, forming a parking shield covering part above the rear area of ​​the vehicle.

[0007] Optionally, the sliding extension assembly includes a cover plate and a mounting portion, wherein, The cover plate forms the main body of the sliding extension assembly and is slidably connected to the slide rail; The mounting parts are provided in multiple locations on the bottom surface edge of the cover plate, and are used to mount detachable side curtains so that they can be combined with the cover plate to form a sheltered space when the vehicle is parked.

[0008] Optionally, the sliding extension assembly further includes a pull plate, which is fixedly disposed at one end of the cover plate facing the rear of the vehicle.

[0009] Optionally, the sliding extension assembly also includes a lighting lamp, which is located on the bottom side or rear of the pull plate to provide illumination for the rear area of ​​the vehicle when parked.

[0010] Optionally, a roof rack may further include a limiting structure, said limiting structure comprising a front limiting member and a rear limiting member, wherein, The front limiting member is provided on the main frame and is used to abut against the end of the cover plate facing the front of the vehicle when it is fully retracted during driving. The rear limiting member includes at least one set, which is disposed on the main frame and is used to abut against the end of the cover plate facing the rear of the vehicle when it is fully retracted during driving.

[0011] Optionally, the rear limiting member includes a lock seat and a lock tongue, wherein, The lock seat is fixedly mounted on the main frame; The bolt is elongated, with one end rotatably connected to the lock seat via a pin. When the cover is in the fully retracted driving position, rotating the latch will press its free end against the end surface of the cover facing the front of the vehicle, thus locking it.

[0012] Optionally, the flow guiding structure includes a flow guide cover and a sealing strip, wherein, The fairing is fixed to one end of the main frame facing the front of the vehicle. The sealing strip is located at the contact gap between the fairing and the vehicle roof.

[0013] Optionally, the windward leading edge of the fairing is lower than the tail end where it connects to the main frame, and its upper surface is a smooth streamlined curved surface.

[0014] Optionally, the main frame is made of hollow aluminum alloy profiles.

[0015] Optionally, the slide rail is a three-section heavy-duty slide rail.

[0016] Compared with the prior art, the roof rack provided by this utility model has the following advantages: (1) By integrating the three functional modules of traffic guidance, basic load-bearing and parking expansion into a physical whole, users do not need to purchase and install separate sunshades, side tents and other equipment. One set of equipment can meet the needs of driving and parking in all scenarios, greatly simplifying user equipment, especially saving valuable roof and storage space of motorhomes and other models, and solving the dilemma of reduced space utilization and complicated equipment storage caused by adding multiple independent modules.

[0017] (2) When in motion, the extension component is fully retracted, forming a compact profile with low wind resistance together with the airflow structure, and is firmly locked by a special limiting and locking structure to eliminate the risk of shaking; when parked, the extension component can be quickly and smoothly pulled out through the heavy-duty sliding rail to form a stable sunshade canopy, and combined with the preset hanging part and integrated lighting, a comfortable and practical rear extension space can be quickly built, realizing the convenient conversion of scene functions.

[0018] (3) The core load-bearing structure adopts lightweight and sturdy aluminum alloy hollow profiles. The flow guide part is equipped with a sealing structure to enhance protection. The integrated integration of each functional module also avoids the problem of multiple connection points and easy loosening of the split equipment. This makes the whole device not only rich in functions, but also stable, durable and reliable in structure, easy to maintain, and has good practical value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the storage state of a roof rack according to the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a top view schematic diagram of the unfolded state of a roof rack according to the present invention; Figure 4 This is a side view of the unfolded roof rack of this utility model.

[0020] In the diagram: 1. Luggage rack body; 11. Main frame; 12. Slide rail; 2. Air guide structure; 21. Air guide cover; 22. Sealing strip; 3. Sliding extension assembly; 31. Cover plate; 32. Hook-on part; 33. Pull plate; 34. Lighting light; 4. Limiting structure; 41. Front limiter; 42. Rear limiter; 421. Lock seat; 422. Lock tongue. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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 the embodiments of this utility model.

[0024] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] Please see Figure 1-4 The present invention proposes a roof rack, which includes a rack body 1, a flow guiding structure 2, and a sliding extension component 3.

[0028] like Figure 1 , Figure 3 As shown, the roof rack body 1 includes a main frame 11 and a slide rail 12. The main frame 11 is fixedly mounted on the roof of the vehicle, with both ends extending towards the direction of vehicle travel. The slide rail 12 is embedded in the main frame 11 and extends towards the rear of the vehicle. The airflow guide structure 2 is located at the end of the main frame 11 facing the front of the vehicle. The sliding extension component 3 is slidably connected to the main frame 11 through the slide rail 12. In the driving state: the sliding extension component 3 is housed inside the main frame 11, forming a compact profile together with the main frame 11. At this time, the airflow guide structure 2 is used to guide airflow to reduce wind resistance when the vehicle is in motion. In the parked state: the sliding extension component 3 is pulled out horizontally from inside the main frame 11 towards the rear of the vehicle, forming a parking cover covering the area above the rear of the vehicle.

[0029] Specifically, the three originally separate functional modules—the airflow structure 2, the roof rack body 1, and the sliding extension component 3—are deeply integrated in terms of physical structure and functional logic by embedding them into the main frame 11 via the slide rail 12. In the driving state, the entire device reverts to a low-drag, high-safety roof rack, with the airflow structure 2 playing a core role in reducing wind resistance, and the sliding extension component 3 being completely housed and protected, avoiding wind noise and safety hazards caused by independently installed equipment. When switching to the parked state, users do not need to find or install any additional equipment; they only need to pull out the sliding extension component 3 via the slide rail 12 to instantly obtain a stable shielding cover extending from the vehicle body at the rear. This solves the fundamental problems of fragmented structure, complex installation, and space occupation caused by the dispersion of functional modules in the background technology, realizing an upgrade from a single cargo platform to a mobile living base station, significantly improving convenience and experience.

[0030] In some embodiments, such as Figure 1 , Figure 4 As shown, the sliding extension component 3 includes a cover plate 31 and a mounting part 32. The cover plate 31 constitutes the main body of the sliding extension component 3 and is slidably connected by a slide rail 12. Multiple mounting parts 32 are provided and distributed on the bottom surface edge of the cover plate 31 for mounting detachable side curtains so that they can be enclosed together with the cover plate 31 to form a sheltered space when the vehicle is parked.

[0031] Specifically, this embodiment is a key enhancement and scenario expansion of the function of the sliding extension component 3; the cover plate 31 provides a basic top sunshade function, while the design of multiple hanging parts 32 gives this extension function a powerful scenario customization capability; the hanging parts 32 can be hooks, D-rings, Velcro, or special sliding tracks, etc.; in the parking state, users can hang different side curtains according to different needs.

[0032] For example, when the weather is fine and only sunshade is needed, a light mesh curtain can be hung to provide ventilation while keeping insects away. When changing clothes or taking a quick shower, a waterproof and airtight shower curtain can be hung, which, together with the cover plate 31, can quickly create a private and waterproof temporary shower room or changing room. This design transforms the roof rack from an open platform into a secluded space, greatly enriching its application scenarios. By reserving standardized mounting parts 32, this solution pre-integrates the functions of the awning and shower tent. Users only need to prepare the corresponding curtains, eliminating the need to carry and install two separate sets of equipment, further demonstrating the core benefits of high integration and space saving.

[0033] In some embodiments, such as Figure 1As shown, the sliding extension assembly 3 also includes a pull plate 33 and a lighting lamp 34. The pull plate 33 is fixedly disposed at one end of the cover plate 31 facing the rear of the vehicle; the lighting lamp 34 is disposed on the bottom side or rear of the pull plate 33 and is used to provide lighting for the rear area of ​​the vehicle when parked.

[0034] Specifically, the integrated design of the pull plate 33 and the lighting lamp 34 reflects the deep consideration of this utility model in terms of user-friendly operation and functional scenario. As the direct interaction point between the user and the sliding extension component 3, the pull plate 33 is necessary to solve the pain points of operation in actual use. During vehicle use, the surface of the cover plate 31 may be covered with rainwater, dust or snow. Without a special force-applying design, it is difficult for the user to apply force to pull it out smoothly. The pull plate 33 fixed to the tail end of the cover plate 31 can be in the form of an embedded groove with anti-slip texture, providing the user with a clear position for applying force.

[0035] Meanwhile, the integration of a lighting lamp 34 at the pull plate 33 is a clever idea that upgrades the basic operating components into a multi-functional composite module. The lighting lamp 34, for example, uses a low-power, high-brightness LED light strip with a carefully designed installation position. When it is pulled out with the cover plate 31 to the parking state, its light can evenly cover the entire rear extension area and the trunk opening from top to bottom.

[0036] For example, when camping at night, users can turn on this light to clearly retrieve items, prepare food, or set up side curtains without having to hold a headlamp or look for an external light source. This lighting function directly serves the usage scenario of the parking canopy, significantly improving its practicality and safety in low-light environments, making the temporarily extended rear space of the vehicle a truly complete and usable outdoor room, and strengthening the completeness of this utility model as an integrated solution.

[0037] In some embodiments, such as Figure 2-3 As shown, a roof rack also includes a limiting structure 4, which includes a front limiting member 41 and a rear limiting member 42. The front limiting member 41 is disposed on the main frame 11 and is used to abut against the end of the cover plate 31 facing the front of the vehicle when it is fully retracted in the driving state. The rear limiting member 42 includes at least one set, which is disposed on the main frame 11 and is used to abut against the end of the cover plate 31 facing the rear of the vehicle when it is fully retracted in the driving state.

[0038] Specifically, the limiting structure 4 is the core mechanism that ensures the safety and reliability of the vehicle during operation. The roof components are subjected to complex airflow impacts and vehicle vibrations during high-speed driving. Any loosening will cause abnormal noises, wear, and even safety hazards. The front limiting member 41 and the rear limiting member 42 provide rigid restraints to the fully retracted cover plate 31 from the front and rear of the vehicle, respectively. The front limiting member 41 can be a crossbar fixed to the main frame 11 to prevent the cover plate 31 from lurching forward due to inertia during emergency braking. The rear limiting member 42 can be a pair of brackets or guards fixed to both sides of the main frame 11. This bidirectional limiting design ensures that the cover plate 31 has no axial free movement within the storage compartment, thus forming a solid whole with the main frame 11 and effectively suppressing shaking and noise during driving. This is different from locks used solely for anti-theft purposes. Its core purpose is to solve the structural stability problem of sliding components in dynamic use environments, which is the key to the safe and reliable use of this solution as a permanent roof component.

[0039] In some embodiments, such as Figure 2 As shown, the rear limiting member 42 includes a lock seat 421 and a lock tongue 422. The lock seat 421 is fixedly mounted on the main frame 11. The lock tongue 422 is elongated, and one end of it is rotatably connected to the lock seat 421 by a pin. When the cover plate 31 is in the fully retracted driving state, rotating the lock tongue 422 can press its free end against the end surface of the cover plate 31 facing the front of the vehicle, thereby achieving locking.

[0040] Specifically, this embodiment introduces an active, lockable mechanical constraint, which enhances the level of security. The lock seat 421 is a base fixed on the main frame 11, while the rotatable elongated lock tongue 422 acts as a movable latch. When the cover plate 31 is pushed back and abuts against the front limit member 41, the user can manually or with a tool rotate the lock tongue 422 downwards, so that its free end presses against the end face of the cover plate 31 like a "latch". This pressing provides a continuous preload, which not only eliminates microscopic gaps but also resists the tendency of the vehicle to loosen due to vibrations caused by bumps and lateral forces.

[0041] For example, during long-distance off-road driving or on unpaved roads, severe vibrations may cause the limiting parts that rely solely on contact to become loose. The active pressing and locking of the locking tongue 422 can effectively prevent this situation. This is a simple, reliable and low-cost mechanical locking solution that ensures that the sliding extension assembly 3 and the roof rack body 1 maintain an absolutely rigid connection even under the most demanding driving conditions, eliminating any potential noises and risks.

[0042] In some embodiments, such as Figure 1As shown, the airflow guiding structure 2 includes an airflow guide 21 and a sealing strip 22. The airflow guide 21 is fixed to one end of the main frame 11 facing the front of the vehicle. The sealing strip 22 is located at the contact gap between the airflow guide 21 and the vehicle roof. The windward front edge of the airflow guide 21 is lower than the tail end that is connected to the main frame 11, and its upper surface is a smooth streamlined curved surface.

[0043] Specifically, the combination of the fairing 21 and the sealing strip 22 constitutes a dual protection system for aerodynamic efficiency and vehicle environmental protection of this utility model. The fairing 21 is not a simple decorative panel. It has a clear structural feature that the frontal edge is lower than the rear, which forms a wedge-shaped airflow guide surface with a negative angle of attack. When the vehicle is in motion, this design can smoothly guide the incoming airflow and fit it against its smooth streamlined curved upper surface, thereby effectively guiding the airflow over the higher rear roof rack body 1, greatly reducing the pressure drag caused by direct impact and the turbulent vortex caused by airflow separation. It is the core functional component for achieving low wind resistance and low wind noise.

[0044] However, excellent aerodynamic performance is unacceptable if it comes at the expense of vehicle sealing. Therefore, the role of the sealing strip 22 is crucial. It is usually made of elastic and weather-resistant rubber or silicone material and is tightly pressed between the lower edge of the fairing 21 and the original roof paint of the car, completely eliminating the structural gap between the two. Its primary function is to prevent the gap from becoming a noise source that generates high-frequency wind whistling under the action of the high-speed airflow guided by the fairing 21.

[0045] In some embodiments, the main frame 11 is made of hollow aluminum alloy profiles.

[0046] Specifically, using hollow aluminum alloy profiles is the industry's best balance solution for achieving lightweight, high strength, and high corrosion resistance. Aluminum alloy profiles manufactured through extrusion molding allow for precise control of cross-sectional shape, minimizing weight through hollow design while ensuring structural rigidity. Lightweighting is particularly important for rooftop equipment, as it directly affects vehicle fuel consumption, handling, and roof load-bearing capacity. Simultaneously, the excellent corrosion resistance of aluminum alloys ensures long-term durability under various climatic conditions. This choice reflects the reliability and maturity of the basic structure of this invention; it is not an experimental design but an optimized solution based on mature industrial materials.

[0047] In some embodiments, the slide rail 12 is a three-section heavy-duty slide rail.

[0048] Specifically, the slide rail 12 is the core moving component that realizes the sliding extension function. Its selection is directly related to the smoothness of use, load-bearing capacity and lifespan. The three-section heavy-duty slide rail is a very specific and preferred technical solution. Compared with the ordinary two-section slide rail, the three-section design provides a longer extension stroke, allowing the cover plate 31 to be pulled out further, thereby covering a larger rear area of ​​the vehicle.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roof rack, characterized in that, It includes the luggage rack body (1), the airflow structure (2), and the sliding extension assembly (3), wherein, The luggage rack body (1) includes a main frame (11) and a slide rail (12). The main frame (11) is fixed on the roof of the vehicle, with both ends extending toward the direction of vehicle travel. The slide rail (12) is embedded in the main frame (11) and extends toward the rear of the vehicle. The flow guiding structure (2) is located at one end of the main frame (11) facing the front of the vehicle; The sliding extension component (3) is slidably connected to the main frame (11) via the slide rail (12). In the driving state, the sliding extension component (3) is housed inside the main frame (11) and forms a compact profile together with the main frame (11). At this time, the airflow guiding structure (2) is used to guide the airflow to reduce wind resistance when the vehicle is in motion. In the parking state, the sliding extension component (3) is pulled out horizontally from inside the main frame (11) towards the rear of the vehicle, forming a parking cover above the rear area of ​​the vehicle.

2. A roof rack according to claim 1, characterized in that, The sliding extension assembly (3) includes a cover plate (31) and a mounting part (32), wherein, The cover plate (31) forms the main body of the sliding extension assembly (3) and is slidably connected to the slide rail (12); The hanging part (32) is provided in multiple parts, which are distributed on the bottom surface edge of the cover plate (31) for hanging a detachable side curtain so that it can be enclosed together with the cover plate (31) to form a sheltered space when the vehicle is parked.

3. A roof rack according to claim 2, characterized in that, The sliding extension assembly (3) also includes a pull plate (33), which is fixedly disposed at one end of the cover plate (31) facing the rear of the vehicle.

4. A roof rack according to claim 3, characterized in that, The sliding extension assembly (3) also includes a lighting lamp (34), which is located on the bottom side or rear of the pull plate (33) and is used to provide lighting for the rear area of ​​the vehicle when it is parked.

5. A roof rack according to claim 2, characterized in that, It also includes a limiting structure (4), which includes a front limiting member (41) and a rear limiting member (42), wherein, The front limiting member (41) is provided on the main frame (11) and is used to abut against the end of the cover plate (31) facing the front of the vehicle when it is fully retracted in the driving state. The rear limiting member (42) includes at least one set, which is disposed on the main frame (11) and is used to abut against the end of the cover plate (31) facing the rear of the vehicle when it is fully retracted during driving.

6. A roof rack according to claim 5, characterized in that, The rear limiting member (42) includes a lock seat (421) and a lock tongue (422), wherein, The lock seat (421) is fixedly mounted on the main frame (11); The latch (422) is elongated, and one end of it is rotatably connected to the lock seat (421) by a pin. When the cover plate (31) is in the fully retracted driving state, rotating the locking tongue (422) can press its free end against the end surface of the cover plate (31) facing the front of the vehicle to achieve locking.

7. A roof rack according to claim 1, characterized in that, The flow guiding structure (2) includes a flow guide cover (21) and a sealing strip (22), wherein, The fairing (21) is fixed to one end of the main frame (11) facing the front of the vehicle; The sealing strip (22) is located at the contact gap between the fairing (21) and the vehicle roof.

8. A roof rack according to claim 7, characterized in that, The windward front edge of the fairing (21) is lower than the tail end where it is connected to the main frame (11), and its upper surface is a smooth streamlined curved surface.

9. A roof rack according to any one of claims 1-8, characterized in that, The main frame (11) is made of hollow aluminum alloy profiles.

10. A roof rack according to any one of claims 1-8, characterized in that, The slide rail (12) is a three-section heavy-duty slide rail.

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