Modular collapsible roof rack extension carrier assembly

Abstract

The utility model relates to the technical field of roof racks, in particular to a modular foldable roof rack expansion bearing assembly. The bearing platform comprises a bearing platform body, a plurality of supporting plates are fixedly connected to the bottom of the bearing platform body, two first sliding grooves are formed in the top of the bearing platform body, a folding fixing assembly is arranged in each first sliding groove, and a protection assembly is arranged in an inner cavity of each folding fixing assembly. The luggage rack can be switched between a folding fixed state and an unfolding fixed state through sliding and rotating operation of a connecting rod and a cross rod in the folding fixed assembly, when the luggage rack is unfolded, an isosceles trapezoid structure can be formed to expand a supporting area, articles of different sizes and shapes can be adaptively placed through an adjusting structure, and the practicability is high. The defects that a traditional roof rack is simple in structure and difficult to flexibly adjust are overcome, and the bearing capacity of diversified objects is improved.

Description

Technical Field

[0001] This utility model relates to the field of roof rack technology, and more specifically, to a modular foldable roof rack extended load-bearing component. Background Technology

[0002] As people's living standards improve, more and more people enjoy traveling by car for activities such as tourism, camping, and outdoor sports. During these trips, people need to carry a lot of luggage and equipment, such as tents, sleeping bags, skis, and bicycles. However, the limited space inside a vehicle makes it difficult to meet the storage needs of these items. Therefore, a loading device that can effectively utilize the vehicle's roof space is needed, and roof racks have emerged to meet this need.

[0003] Considering that roof racks have a relatively simple structure, usually consisting of fixed crossbars or frames, while they can provide a certain load-bearing capacity, they are inconvenient to adjust flexibly according to needs for items of different sizes or shapes. Furthermore, when not in use, they occupy a large amount of space, increasing the vehicle's wind resistance and fuel consumption, and may also affect the vehicle's passability. Therefore, we propose a modular, foldable roof rack extended load-bearing component. Utility Model Content

[0004] The purpose of this utility model is to solve the problems that most roof racks are fixed crossbars or frames, which have poor flexibility, large space occupation when idle, increased wind resistance and fuel consumption, and affect vehicle passability, and to provide a modular and foldable roof rack extended load-bearing component.

[0005] To achieve the above objectives, this utility model provides a modular foldable roof rack extension load-bearing component, including a load-bearing platform body, with multiple support plates fixedly connected to the bottom of the load-bearing platform body, and two first sliding grooves opened on the top of the load-bearing platform body, each first sliding groove being provided with a folding fixing component, and a protective component being provided in the inner cavity of the folding fixing component;

[0006] Each set of the folding and fixing components includes two connecting rods slidably disposed in the inner cavity of the first slide groove, and a crossbar rotatably connected to the end of the two connecting rods away from the first slide groove. The crossbar is used to connect the two connecting rods. In the folded state, the crossbar is close to the first slide groove. In the unfolded and fixed state, the crossbar is moved away from the first slide groove by sliding and rotating the connecting rods. The two connecting rods and the crossbar form an isosceles trapezoidal structure. By sliding and rotating the connecting rods in the opposite direction, the bottom of the crossbar is made to fit against the top of the luggage, thereby fixing the luggage.

[0007] By sliding and rotating the connecting rods and crossbars, the components can switch between folded and unfolded fixed states. When unfolded, the two connecting rods and crossbars form an isosceles trapezoidal structure, which can flexibly expand the load-bearing area according to the size of the luggage, solving the problem that traditional luggage racks are difficult to adapt to items of different sizes and shapes, and meeting diverse loading needs. When not in use, the folding and fixing components are in the folded state, and the crossbar is close to the first slide, which greatly reduces the space occupied by the luggage rack.

[0008] As a further improvement to this technical solution, a fixing plate is fixedly connected to the bottom of the crossbar. The fixing plate is evenly distributed in multiple ways. The two ends of the fixing plate are fixedly connected to two sets of crossbars respectively to form a cross-group linkage structure. Multiple limiting grooves are opened on the surface of the main body of the bearing platform. A limiting rod is slidably connected to the inner wall of each limiting groove. Its surface penetrates the inner wall of the connecting rod, and the limiting rod is fixed to the inner wall of the limiting groove by bolts.

[0009] Multiple evenly distributed fixing plates are fixedly connected to the bottom of the crossbar. When the crossbar presses down to fix the luggage, the fixing plates can make multiple contacts with the surface of the luggage, increasing the contact area with the luggage. Multiple limiting grooves opened on the surface of the main body of the bearing platform cooperate with the slidingly connected limiting rod. After the connecting rod slides and rotates to the appropriate position so that the crossbar fits against the luggage, the limiting rod is inserted into the limiting groove and passes through the inner wall of the connecting rod. Then the limiting rod is fixed by bolts, thereby locking the position of the connecting rod and preventing it from shifting due to vibration or other reasons during vehicle operation.

[0010] As a further improvement to this technical solution, a second sliding groove is provided at the top of the crossbar, and the protective component is disposed in the inner cavity of the second sliding groove. The protective component includes a fixed sliding rod and a movable sliding rod disposed in the second sliding groove. A rainproof cloth is slidably connected to the surface of the fixed sliding rod. The rainproof cloth is wrapped around the surface of the fixed sliding rod, and the other end of the rainproof cloth is fixedly connected to the surface of the movable sliding rod. The movable sliding rod can slide along the second sliding groove to unfold the rainproof cloth. A fixing device is snapped onto the surface of the crossbar, and the surface of the fixing device is in contact with the movable sliding rod.

[0011] When luggage needs protection, such as in the event of rain or sun exposure, manually push the movable slide bar to slide it away from the fixed slide bar along the second slide groove. As the movable slide bar moves, the rainproof cloth, with one end fixed to the movable slide bar and the other end wrapped around the surface of the fixed slide bar, will gradually unfold from the fixed slide bar. Eventually, the rainproof cloth will be fully unfolded and cover the luggage placed on top of the support plate, forming a protective barrier to block rain, sunlight, and other damage to the luggage.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This modular, foldable roof rack extension assembly allows the rack to switch between folded and unfolded fixed states through the sliding and rotating operation of the connecting rods and crossbars in the folding and fixing components. When unfolded, it forms an isosceles trapezoidal structure to expand the support area. This allows for the adjustment of the structure to accommodate items of different sizes and shapes, overcoming the shortcomings of traditional roof racks which are simple in structure and difficult to adjust flexibly. It enhances the load-bearing capacity for diverse items. When not in use, the folding and fixing components are folded, with the crossbars close to the first sliding groove, significantly reducing the space occupied by the rack. In the unfolded fixed state, by sliding and rotating the connecting rods in the opposite direction, the bottom of the crossbars fits tightly against the top of the luggage, providing a stable fixation for luggage placed on top of the main support platform, ensuring that the luggage will not shake or shift during vehicle operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the crossbar structure of this utility model;

[0016] Figure 3 For the present utility model Figure 2 A magnified structural diagram at point A.

[0017] The meanings of the labels in the diagram are as follows:

[0018] 1. Main body of the support platform; 10. First slide rail; 11. Support plate; 12. Limiting groove;

[0019] 2. Folding fixing assembly; 21. Connecting rod; 210. Limiting rod; 22. Crossbar; 220. Fixing plate; 221. Second slide groove;

[0020] 3. Protective components; 31. Fixed slide bar; 311. Movable slide bar; 32. Rainproof cloth; 33. Fixture; Detailed Implementation

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

[0022] Example

[0023] Please see Figures 1-3As shown, this embodiment provides a modular foldable roof rack extended load-bearing component, including a load-bearing platform body 1, a plurality of support plates 11 fixedly connected to the bottom of the load-bearing platform body 1, and two first slide grooves 10 opened on the top of the load-bearing platform body 1. Each first slide groove 10 is provided with a folding fixing component 2, and a protective component 3 is provided in the inner cavity of the folding fixing component 2.

[0024] Each folding and fixing assembly 2 includes two connecting rods 21 slidably disposed in the inner cavity of the first slide groove 10, and a crossbar 22 rotatably connected to the end of the two connecting rods 21 away from the first slide groove 10. The crossbar 22 is used to connect the two connecting rods 21. In the folded state, the crossbar 22 is close to the first slide groove 10. In the unfolded and fixed state, the crossbar 22 is moved away from the first slide groove 10 by sliding and rotating the connecting rods 21. The two connecting rods 21 and the crossbar 22 form an isosceles trapezoidal structure. By sliding and rotating the connecting rods 21 in the opposite direction, the bottom of the crossbar 22 is made to fit against the top of the luggage, thereby fixing the luggage.

[0025] The main body 1 of the carrying platform is installed on the top of the vehicle, and the multiple support plates 11 at the bottom are in close contact with the roof to ensure that the main body 1 of the carrying platform is stably installed. At this time, the folding and fixing components 2 are in the folded state, and the crossbar 22 is close to the first slide 10 to reduce the space occupied by the luggage rack and reduce the wind resistance when the vehicle is driving. When luggage needs to be loaded, the two connecting rods 21 in the first slide 10 are slid outward, and then the connecting rods 21 are rotated to move the crossbar 22 away from the first slide 10, so that the two connecting rods 21 and the crossbar 22 form an isosceles trapezoidal structure. The two sets of folding and fixing components 2 are unfolded simultaneously to form an extended support area on the top of the main body 1 of the carrying platform. The luggage to be loaded is placed stably on the top of the main body 1 of the carrying platform, in the area enclosed by the unfolded folding and fixing components 2, to ensure that the luggage is placed in the center. After the luggage is placed, the operator slides the connecting rods 21 in the opposite direction to move the connecting rods 21 toward the first slide 10, and at the same time rotates the connecting rods 21 to move the crossbar 22 downward until the bottom of the crossbar 22 is tightly attached to the top of the luggage to fix the luggage.

[0026] The improvement in this embodiment is as follows:

[0027] Considering the relatively simple structure of roof racks, typically consisting of fixed crossbars or frames, while they offer some load-bearing capacity, they are inconvenient to adjust flexibly to accommodate items of different sizes or shapes. Furthermore, when not in use, they occupy significant space, increasing wind resistance and fuel consumption, and potentially affecting vehicle passability. Therefore, we propose a modular, foldable roof rack extended load-bearing component. Through the sliding and rotating operations of the connecting rod 21 and crossbar 22 in the folding fixing component 2, the roof rack can switch between folded and unfolded fixed states. When unfolded, it forms an isosceles trapezoidal structure. The expanded support area allows for the adjustment of the structure to accommodate items of different sizes and shapes, overcoming the shortcomings of traditional roof racks which are simple in structure and difficult to adjust flexibly. This enhances the load-bearing capacity for diverse items. When not in use, the folding and fixing component 2 is folded, with the crossbar 22 close to the first slide groove 10, greatly reducing the space occupied by the roof rack. In the unfolded and fixed state, by sliding in the opposite direction and rotating the connecting rod 21, the bottom of the crossbar 22 is tightly attached to the top of the luggage, which can stably fix the luggage placed on the top of the carrying platform body 1, ensuring that the luggage will not shake or shift during vehicle operation.

[0028] To allow the connecting rod 21 to slide and rotate within the first slide groove 10, and to secure the crossbar 22 to the luggage, multiple limiting grooves 12 are provided on the surface of the main body 1 of the carrying platform. Each limiting groove 12 has a limiting rod 210 slidably connected to its inner wall, with its surface penetrating the inner wall of the connecting rod 21. The limiting rod 210 is then fixed to the inner wall of the limiting groove 12 with bolts. When luggage needs to be secured, the connecting rod 21 is first slid and rotated within the first slide groove 10 to a suitable position, allowing the crossbar 22 to fit against the top of the luggage. Then, the limiting rod 210 is inserted into the inner wall of the limiting groove 12, penetrating the inner wall of the connecting rod 21. Finally, bolts are used to fasten the limiting rod 210 to the current suitable position, thereby locking the position of the connecting rod 21 and ensuring that the crossbar 22 stably applies a securing effect to the luggage.

[0029] Considering that luggage is generally large in size, relying solely on the descent of the crossbar 22 to secure it is not stable enough. Therefore, a fixing plate 220 is fixedly connected to the bottom of the crossbar 22, and multiple fixing plates 220 are evenly distributed. When the crossbar 22 moves downward, it can simultaneously drive multiple fixing plates 220 downward. At this time, the bottom of the fixing plate 220 will be in contact with the surface of the luggage, thereby increasing the contact area with the luggage and making its support for the luggage more stable.

[0030] Considering that there are two sets of folding and fixing components 2, in order to simplify the fixing process by moving one set of connecting rods 21 and causing the other set of connecting rods 21 to move accordingly, both ends of the fixing plate 220 are fixedly connected to the two sets of crossbars 22 respectively, forming a cross-group linkage structure. When operating, the user only needs to push one set of connecting rods 21. While the connecting rods 21 move the crossbars 22, the fixing plate 220 simultaneously pulls the other set of crossbars 22 and connecting rods 21 to move, realizing the coordinated action of the two sets of folding and fixing components 2. There is no need to operate the two sets of connecting rods 21 separately, which greatly simplifies the luggage fixing process and improves the efficiency of use.

[0031] The top of the crossbar 22 is provided with a second slide groove 221, and the protective component 3 is disposed in the inner cavity of the second slide groove 221;

[0032] In order for the protective assembly 3 to protect the luggage placed on top of the support plate 11, it is necessary to further disclose the parts of the protective assembly 3. Therefore, the protective assembly 3 includes a fixed slide rod 31 and a movable slide rod 311 disposed in the second slide groove 221. A rainproof cloth 32 is slidably connected to the surface of the fixed slide rod 31. The rainproof cloth 32 is wrapped around the surface of the fixed slide rod 31, and the other end of the rainproof cloth 32 is fixedly connected to the surface of the movable slide rod 311. The movable slide rod 311 can slide along the second slide groove 221 to unfold the rainproof cloth 32.

[0033] Initial storage state: When there is no need to protect the luggage, the movable slide bar 311 is located close to the fixed slide bar 31, and the rainproof cloth 32 is tightly wrapped around the surface of the fixed slide bar 31. In this state, the protective component 3 occupies little space and will not affect the normal loading and unloading of luggage. At the same time, it also avoids unnecessary wear and tear on the rainproof cloth 32 during daily use.

[0034] Deploying the protective state: When luggage needs protection, such as in the event of rain or sun exposure, manually push the movable slide bar 311 so that it slides along the second slide groove 221 away from the fixed slide bar 31. As the movable slide bar 311 moves, since one end of the rainproof cloth 32 is fixed to the movable slide bar 311 and the other end is wrapped around the surface of the fixed slide bar 31, the rainproof cloth 32 will gradually unfold from the fixed slide bar 31. Finally, the rainproof cloth 32 is fully unfolded and covers the luggage placed on top of the support plate 11, forming a protective barrier to block rain, sunlight and other damage to the luggage.

[0035] In order to ensure that the movable slide bar 311 slides in the appropriate position and can be fixed after the rainproof cloth 32 is unfolded, so that it will not slide in the inner cavity of the second slide groove 221, a retainer 33 is attached to the surface of the crossbar 22. The surface of the retainer 33 contacts the movable slide bar 311. After the rainproof cloth 32 is pulled to the appropriate position, by attaching the retainer 33 to the surface of the crossbar 22, the movable slide bar 311 will be blocked, preventing the movable slide bar 311 from sliding in the opposite direction and rewinding the rainproof cloth 32.

[0036] In practical use, the modular foldable roof rack extension load-bearing component of this utility model allows for the following operation: When loading is required, the two connecting rods 21 within the first slide groove 10 are slid outwards. Then, the connecting rods 21 are rotated, causing the crossbar 22 to move away from the first slide groove 10, forming an isosceles trapezoidal structure with the two connecting rods 21 and the crossbar 22. The two sets of folding and fixing components 2 unfold simultaneously, creating an extended support area on the top of the load-bearing platform body 1, providing more space for luggage. The luggage to be loaded is then placed stably on top of the load-bearing platform body 1, ensuring it is within the area enclosed by the unfolded folding and fixing components 2. After the luggage is placed, the operator slides the connecting rods 21 in the opposite direction, moving them towards the first slide groove 10. Rotate the connecting rod 21 to move the crossbar 22 downwards until the bottom of the crossbar 22 is tightly attached to the top of the luggage. At this time, the bottom of the fixing plate 220 makes multiple contacts with the surface of the luggage. By expanding the contact area, the pressure is dispersed to achieve a stable fixation of the luggage. Insert the limiting rod 210 into the inner wall of the limiting groove 12 and through the inner wall of the connecting rod 21. Use bolts to tighten the limiting rod 210 to further lock the position of the connecting rod 21. If it is necessary to protect the luggage in rainy or sunny weather, manually push the movable slide bar 311 to slide it away from the fixed slide bar 31 along the second slide groove 221. Unfold the rainproof cloth 32 wrapped around the surface of the fixed slide bar 31 to cover the luggage and form a protective barrier to block rainwater.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Modular foldable roof rack extension carrier assembly comprising a carrier platform body (1), characterized in that: The bottom of the main body (1) of the bearing platform is fixedly connected with multiple support plates (11), and the top of the main body (1) of the bearing platform has two first slide grooves (10), each of the first slide grooves (10) is provided with a folding fixing component (2), and the inner cavity of the folding fixing component (2) is provided with a protective component (3); Each set of the folding fixing assembly (2) includes two connecting rods (21) slidably disposed in the inner cavity of the first slide groove (10), and a crossbar (22) rotatably connected to one end of the two connecting rods (21) away from the first slide groove (10). The crossbar (22) is used to connect the two connecting rods (21). In the unfolded and fixed state, the two connecting rods (21) and the crossbar (22) form an isosceles trapezoidal structure.

2. The modular, foldable roof rack cargo carrier extension carrier assembly of claim 1, wherein: The main body (1) of the bearing platform has multiple limiting grooves (12) on its surface. Each limiting groove (12) has a limiting rod (210) slidably connected to its inner wall. Its surface penetrates the inner wall of the connecting rod (21), and the limiting rod (210) is fixed to the inner wall of the limiting groove (12) by bolts.

3. The modular, foldable roof rack cargo carrier extension carrier assembly according to claim 1, wherein: The bottom of the crossbar (22) is fixedly connected to a fixing plate (220), and the fixing plate (220) is provided in multiple and evenly distributed.

4. The modular, foldable roof rack cargo carrier extension carrier assembly according to claim 3, wherein: The two ends of the fixing plate (220) are respectively fixedly connected to two sets of crossbars (22).

5. The modular, foldable roof rack cargo carrier extension carrier assembly according to claim 1, wherein: The top of the crossbar (22) is provided with a second groove (221), and the protective component (3) is disposed in the inner cavity of the second groove (221).

6. The modular, foldable roof rack cargo carrier extension carrier assembly according to claim 5, wherein: The protective component (3) includes a fixed slide rod (31) and a movable slide rod (311) disposed in the second slide groove (221). A rainproof cloth (32) is slidably connected to the surface of the fixed slide rod (31). The rainproof cloth (32) is wrapped around the surface of the fixed slide rod (31), and the other end of the rainproof cloth (32) is fixedly connected to the surface of the movable slide rod (311). The movable slide rod (311) can slide and unfold the rainproof cloth (32) along the second slide groove (221).

7. The modular, foldable roof rack cargo carrier extension carrier assembly according to claim 6, wherein: A retainer (33) is snapped onto the surface of the crossbar (22), and the surface of the retainer (33) is in contact with the movable slide bar (311).

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