An aluminum cargo box for automobiles with a modular expansion structure

The modular expansion structure design solves the problem of fixed cargo box space, enabling flexible adjustment of cargo box volume and stable installation.

CN224576709UActive Publication Date: 2026-07-31SHANDONG HONGYUAN INTELLIGENT EQUIPMENT VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HONGYUAN INTELLIGENT EQUIPMENT VEHICLE CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The internal space of existing car cargo boxes is fixed and cannot be expanded according to usage requirements.

Method used

The design incorporates a modular expansion structure, including an upper cargo box, a lower cargo box, an expansion plate, and limiting components. Modular assembly and expansion of the cargo box are achieved through plug-in and bolt connections.

Benefits of technology

It enables flexible expansion of cargo box volume, making it easy to adjust the internal space size according to needs, and can be stably installed on the vehicle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224576709U_ABST
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Abstract

This utility model discloses an aluminum car cargo box with a modular expansion structure, including an upper cargo box panel and a lower cargo box panel. The left ends of both the upper and lower cargo box panels have mounting grooves, and the right ends of the upper and lower cargo box panels are respectively inserted into mounting grooves on the left side of another adjacent upper and lower cargo box panel. The expansion panel is connected to the upper cargo box panel and the lower cargo box panel via limiting components. These limiting components include a fixed connecting plate for connection, protrusions fixedly connected to the upper and lower ends of the fixed connecting plate, and a first bolt for positioning. An mounting component is provided at the lower end of the lower cargo box panel. This aluminum car cargo box with a modular expansion structure can expand the cargo box's volume, facilitating modular assembly of the cargo box. Combined with the mounting component at the lower end of the lower cargo box panel, it facilitates fixing the cargo box to the vehicle.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive cargo boxes, specifically an aluminum automotive cargo box with a modular expansion structure. Background Technology

[0002] A truck bed is a box installed on a truck to hold goods. It provides stable loading space for goods and can transport them to various locations. Its core function is to provide extra storage space for the vehicle and it is an important component of a truck.

[0003] As disclosed in CN206494011U, a car cargo box includes a rectangular box with an open top, enclosed by a bottom plate, left and right side plates, and front and rear end plates. The bottom plate, left and right side plates, and front and rear end plates are all composite panels, with side reinforcing frames on the outer sides of the left and right side plates and a bottom reinforcing frame on the lower side of the bottom plate. This design not only provides the inner wall of the cargo box with good corrosion resistance and wear resistance, but also facilitates the welding of the composite plate (with a stainless steel inner layer and a common steel outer layer) to the corresponding reinforcing frames, solving the problem of difficult stainless steel welding. In particular, the special design of the bottom and side reinforcing frames gives the box sufficient toughness and impact resistance, effectively reducing the overall weight of the box while improving structural strength, thus bringing beneficial effects to the vehicle's load-bearing capacity. This utility model has a simple structure and is easy to manufacture.

[0004] However, in the prior art, most cargo boxes are a single piece, and their internal space is fixed and inconvenient, making it difficult to expand the internal volume of the cargo box according to usage requirements. For example, the comparative patents listed above have this problem.

[0005] To address these issues, we propose an aluminum cargo box for automobiles with a modular expansion structure. Utility Model Content

[0006] The purpose of this utility model is to provide an aluminum car cargo box with a modular expansion structure, so as to solve the problem mentioned in the background art that most cargo boxes are a whole, and their internal space is inconvenient to fix and it is not convenient to expand the internal volume of the cargo box according to the usage requirements.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an aluminum cargo box for automobiles with a modular expansion structure, comprising an upper cargo box panel and a lower cargo box panel;

[0008] Also includes:

[0009] The left ends of the upper cargo box and the lower cargo box are provided with mounting grooves, and the right ends of the upper cargo box and the lower cargo box are respectively inserted into the mounting grooves on the left side of another upper cargo box and the lower cargo box at an adjacent position on the right.

[0010] An expansion plate is disposed between the upper cargo box and the lower cargo box, and the expansion plate is connected to the upper cargo box and the lower cargo box by a limiting component. The limiting component includes a fixed connecting plate for connection, protrusions fixedly connected to the upper and lower ends of the fixed connecting plate, and a first bolt for limiting.

[0011] The lower end of the lower cargo box is provided with an installation component, which fixes the lower cargo box to the vehicle frame.

[0012] Preferably, the fixed connecting plates are respectively snapped onto the front and rear ends of the connection between the upper cargo box plate and the expansion plate, and the lower cargo box plate and the expansion plate, and the lower end of the upper cargo box plate, the upper end of the lower cargo box plate, and the upper and lower ends of the expansion plate are all provided with fixing holes for positioning.

[0013] Preferably, the fixed connecting plate drives the protrusion to engage in the fixed hole at the corresponding position.

[0014] Preferably, the fixed connecting plate is fixed to the upper cargo box plate, the fixed connecting plate to the lower cargo box plate, and the fixed connecting plate to the expansion plate by the first bolt.

[0015] Preferably, splicing plates are fitted together at the connection points between the upper cargo box and the lower cargo box, and positioning blocks are engaged at both ends of the splicing plates. The positioning blocks are respectively fixedly connected to the front and rear ends of the upper and lower cargo boxes.

[0016] Preferably, the splicing plate is fixed to the upper cargo box plate and the splicing plate is fixed to the lower cargo box plate by the second bolt.

[0017] Preferably, the mounting assembly includes a support rail fixed to the lower end of the lower cargo box plate, a movable mounting block sleeved on the outside of the support rail, and a third bolt for limiting the position. The lower end of the movable mounting block has a mounting hole.

[0018] Preferably, the movable mounting block forms a sliding structure on the support rail, and the movable mounting block is fixed to the support rail by a third bolt.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the car aluminum cargo box with a modular expansion structure can expand the volume of the cargo box by adding an expansion plate between the upper and lower cargo box plates at the upper and lower ends. Combined with the setting of the limiting components, it is convenient to limit the installation between the upper cargo box plate, the lower cargo box plate and the expansion plate. Moreover, the upper cargo box plate and the lower cargo box plate are respectively inserted into the mounting grooves on the left side of another upper cargo box plate and the lower cargo box plate at the adjacent position on the right side, which facilitates the modular splicing and assembly of the cargo box. Combined with the mounting components at the lower end of the lower cargo box plate, it is convenient to fix the cargo box on the car.

[0020] 1. It is equipped with an upper cargo box, a lower cargo box, and a splicing plate. The upper cargo box and the lower cargo box are respectively inserted into the mounting slots on the left side of another upper cargo box and the lower cargo box on the right side, which facilitates the modular assembly of the cargo box. Combined with the splicing plate, it is convenient to connect and limit the assembled upper cargo box and the lower cargo box, as well as the lower cargo box and the lower cargo box.

[0021] 2. It is equipped with expansion plates and limiting components. The expansion plates are set at the connection between the upper and lower cargo box plates, which facilitates the modular expansion and splicing of the cargo box, and can increase the internal volume of the container according to actual needs.

[0022] 3. An installation assembly is provided, which includes a support rail, a movable mounting block, and a third bolt. The installation assembly is located at the lower end of the lower cargo box plate, and the installation assembly facilitates the fixing of the cargo box to the vehicle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0025] Figure 3 This is an exploded structural diagram of the upper cargo box plate, lower cargo box plate, expansion plate, and fixed connection plate of this utility model;

[0026] Figure 4 This is an exploded view of the fixed connecting plate, protrusion, and first bolt of this utility model;

[0027] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 6 This is an exploded view of the loading box and splicing panel of this utility model;

[0029] Figure 7 This is an exploded structural diagram of the support rail, movable mounting block, and third bolt of this utility model.

[0030] In the diagram: 1. Upper cargo box panel; 2. Lower cargo box panel; 3. Mounting groove; 4. Expansion plate; 5. Fixed connecting plate; 6. Protrusion; 7. Fixing hole; 8. First bolt; 9. Splicing plate; 10. Positioning block; 11. Second bolt; 12. Support rail; 13. Movable mounting block; 14. Third bolt. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-7 .

[0033] To address the problem that existing cargo boxes are mostly single units with inconvenient internal space and difficulty in expanding their internal volume according to usage requirements, this solution provides an automotive aluminum cargo box with a modular expansion structure. The cargo box includes an upper cargo box panel 1 and a lower cargo box panel 2. Both the upper and lower cargo box panels 1 and 2 have mounting slots 3 on their left ends. The right ends of the upper and lower cargo box panels 1 and 2 are respectively inserted into mounting slots 3 on the left side of another adjacent upper and lower cargo box panel 1 and 2. An expansion panel 4 is connected to the upper cargo box panel 1 and the lower cargo box panel 2 via limiting components. An installation component is provided at the lower end of the lower cargo box panel 2, which fixes the lower cargo box panel 2 to the vehicle frame.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, firstly, according to the usage requirements of the internal space, the expansion plate 4 can be placed on the front and rear sides between the upper cargo box 1 and the lower cargo box 2. By setting the limiting components, the limiting components include a fixed connecting plate 5 for connection, protrusions 6 fixedly connected to the upper and lower ends of the fixed connecting plate 5, and a first bolt 8 for limiting. The fixed connecting plate 5 is respectively snapped between the upper cargo box 1 and the expansion plate 4 and between the lower cargo box 2 and the expansion plate 4. At the same time, the protrusions 6 are snapped into the corresponding fixing holes 7. Then, by rotating the first bolt 8, the expansion plate 4 and the lower cargo box 2 and the expansion plate 4 and the upper cargo box 1 are limited, thereby enabling modular expansion of the cargo box volume.

[0035] Then, insert the right ends of the upper cargo box 1 and the lower cargo box 2 into the mounting slots 3 on the left side of the other upper cargo box 1 and lower cargo box 2 located adjacent to each other on the right. Next, attach the splicing plates 9 to the connection points between the upper cargo box 1 and the lower cargo box 2, respectively. Figure 1 and Figure 5As shown, positioning blocks 10 are engaged at both the front and rear ends of the splicing plate 9. The splicing plate 9 is limited to the upper cargo box plate 1 and the lower cargo box plate 2 by second bolts 11, thus completing the modular splicing of the cargo box. Furthermore, the overall number of upper cargo box plates 1 and lower cargo box plates 2 can be adjusted according to actual conditions. In addition, as... Figure 2 and Figure 7 As shown, after the modular assembly of the cargo box is completed, an installation component is provided at the lower end of the cargo box. The installation component includes a support rail 12 fixed to the lower end of the lower cargo box plate 2, a movable mounting block 13 sleeved on the outside of the support rail 12, and a third bolt 14 for limiting the position. The lower end of the movable mounting block 13 has an installation hole. The movable mounting block 13 is sleeved on the outside of the support rail 12, and then the movable mounting block 13 is moved. The movable mounting block 13 and the support rail 12 slide back and forth to move the movable mounting block 13 to the position corresponding to the installation position on the vehicle. Then, the third bolt 14 limits the position between the movable mounting block 13 and the support rail 12. Then, the lower end of the movable mounting block 13 is engaged with the installation position on the vehicle, and the position between the movable mounting block 13 and the vehicle is limited, thereby facilitating the installation of the cargo box.

[0036] 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. An aluminum cargo box for automobiles with a modular expansion structure, comprising an upper cargo box panel (1) and a lower cargo box panel (2); characterized in that Also includes: The upper cargo box (1) and the lower cargo box (2) are provided with mounting grooves (3) on their left ends, and the right ends of the upper cargo box (1) and the lower cargo box (2) are respectively inserted into the mounting grooves (3) on the left side of another upper cargo box (1) and lower cargo box (2) at the adjacent position on the right side; An expansion plate (4) is provided between the upper cargo box (1) and the lower cargo box (2), and the expansion plate (4) is connected to the upper cargo box (1) and the expansion plate (4) is connected to the lower cargo box (2) by a limiting component. The limiting component includes a fixed connecting plate (5) for connection, protrusions (6) fixedly connected to the upper and lower ends of the fixed connecting plate (5), and a first bolt (8) for limiting. The lower end of the lower cargo box (2) is provided with an installation component, which fixes the lower cargo box (2) to the vehicle frame.

2. The automotive aluminum cargo box with a modular expansion structure according to claim 1, characterized in that: The fixed connecting plate (5) is respectively engaged and connected to the front and rear ends of the connection between the upper cargo box plate (1) and the expansion plate (4) and the lower cargo box plate (2) and the expansion plate (4), and the lower end of the upper cargo box plate (1), the upper end of the lower cargo box plate (2) and the upper and lower ends of the expansion plate (4) are provided with fixing holes (7) for positioning.

3. The automobile aluminum cargo box with a modular expansion structure according to claim 2, characterized in that: The fixed connecting plate (5) drives the protrusion (6) to engage in the fixed hole (7) at the corresponding position.

4. The automobile aluminum cargo box with a modular expansion structure according to claim 3, characterized in that: The fixed connecting plate (5) is fixed to the upper cargo box plate (1), the fixed connecting plate (5) is fixed to the lower cargo box plate (2), and the fixed connecting plate (5) is fixed to the expansion plate (4) by the first bolt (8).

5. The automobile aluminum cargo box with a modular expansion structure according to claim 1, characterized in that: The upper cargo box (1) and the lower cargo box (2) are both fitted with splicing plates (9), and positioning blocks (10) are engaged at both ends of the splicing plates (9). The positioning blocks (10) are fixedly connected to the front and rear ends of the upper cargo box (1) and the lower cargo box (2), respectively.

6. The automobile aluminum cargo box with a modular expansion structure according to claim 5, characterized in that: The splicing plate (9) is fixed to the upper cargo box plate (1) and the splicing plate (9) is fixed to the lower cargo box plate (2) by the second bolt (11).

7. The automobile aluminum cargo box with a modular expansion structure according to claim 1, characterized in that: The mounting assembly includes a support rail (12) fixed to the lower end of the lower cargo box plate (2), a movable mounting block (13) sleeved on the outside of the support rail (12), and a third bolt (14) for limiting the position. The lower end of the movable mounting block (13) has a mounting hole.

8. An aluminum cargo box for automobiles with a modular expansion structure according to claim 7, characterized in that: The movable mounting block (13) forms a sliding structure on the support rail (12), and the movable mounting block (13) and the support rail (12) are fixed by a third bolt (14).