Aluminum alloy reinforced structure

By using an aluminum alloy reinforced structure, the problems of insufficient support and weak material in the middle of the front lip of the car are solved, thereby improving the strength and stability of the front lip, reducing the risk of deformation and breakage, and extending its service life.

CN224545887UActive Publication Date: 2026-07-24GUANGDONG SHUNDE KAWASAKI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG SHUNDE KAWASAKI AUTO PARTS CO LTD
Filing Date
2025-10-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing automotive front lips are too long and lack sufficient support in the middle. As a cantilever structure, the increased length significantly increases the stress in the middle, and the deflection is proportional to the cube of the length, which greatly increases the risk of deformation. The material is thin, the design is poor, the resistance to deformation is poor, it is difficult to disperse and bear stress, and it is easy to deform or break in the middle.

Method used

The reinforced structure, made of aluminum alloy, includes components such as shelves, metal brackets, and support plates. Through the design of reinforcing plates, reinforced curved plates, and support areas, it forms multi-point support, disperses external forces, reduces stress concentration, and enhances overall stability.

Benefits of technology

It effectively disperses the external force on the front lip, reduces the risk of deformation and breakage in the middle part, improves the strength and stability of the front lip, extends its service life, and reduces maintenance and replacement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile parts, specifically discloses an aluminum alloy reinforcing structure, upper body, the upper body includes the layer board, the middle part of layer board is provided with one or more reinforcing sheet that is linear array arrangement, every two reinforcing sheet keeps spacing, forms the accommodation space, the lower portion of layer board is provided with the butt joint spare, one side of butt joint spare is provided with the metal support, the lower portion of butt joint spare is connected with lower body, forms the finished product, the utility model discloses the reinforcing structure that the reinforcing sheet of upper body and the reinforcing arc plate of metal support adapt to form, can effectively disperse the various external force that the front lip suffers, such as road impact force, air resistance, accidental collision force etc, in the vehicle driving process, can reduce the stress concentration of the middle part of front lip, reduces the risk of deformation and fracture.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an aluminum alloy reinforced structure. Background Technology

[0002] A car front lip is a decorative component installed below the front bumper of a car, and fasteners are parts specifically designed to securely attach the front lip to the front bumper.

[0003] Its function is to ensure that the front lip does not loosen or detach during vehicle operation, forming a unified whole with the vehicle body and maintaining a good appearance. While the vehicle is in motion, it can also cushion the vibrations and impacts received by the front lip, protecting it and the front bumper from damage.

[0004] In traditional front lip designs, the relatively long length of the front lip results in insufficient support in the middle section. As a cantilever structure, increasing the length of the front lip significantly increases the stress on the middle section. According to mechanical principles, the deflection (deformation) of a cantilever structure is proportional to the cube of its length; therefore, increasing the length greatly increases the risk of deformation.

[0005] Weak materials and designs, such as insufficient thickness and lack of internal reinforcement, result in poor resistance to deformation. When subjected to external forces, they cannot effectively distribute and bear stress, making them prone to deformation or even breakage in the middle section.

[0006] Furthermore, when a vehicle is driving on uneven roads, the front lip will be constantly subjected to impacts from the road surface. A long and thin front lip cannot withstand such repeated impacts, and the middle part is more prone to deformation.

[0007] Air resistance at high speeds also exerts significant pressure on the front lip. In particular, when a vehicle is traveling at high speeds, the airflow around the front lip creates upward or downward forces on it. These forces accumulate in the middle section of the longer front lip, potentially causing deformation.

[0008] Furthermore, accidental collisions, such as minor impacts with curbs or obstacles, can directly cause damage, deformation, or breakage to the middle section of the front lip. Based on this, this application provides an aluminum alloy reinforcement structure. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an aluminum alloy reinforced structure, which solves the problems of the long front lip length and lack of sufficient support in the middle of the existing technology. As a cantilever structure, the increased length significantly increases the stress in the middle, and the deflection is proportional to the cube of the length, which greatly increases the risk of deformation. In addition, the material is thin and the design is poor (such as insufficient thickness or lack of reinforcing ribs), resulting in poor resistance to deformation. When subjected to external forces, it is difficult to disperse and bear the stress, and it is easy to deform and break in the middle.

[0010] The aluminum alloy reinforced structure of this utility model includes: an upper body, the upper body including a layer plate, and one or more reinforcing pieces arranged in a linear array in the middle of the layer plate, with each pair of reinforcing pieces maintaining a distance to form an accommodating space;

[0011] A connecting piece is provided below the shelf, a metal bracket is provided on one side of the connecting piece, and a lower body is connected to the lower part of the connecting piece to form a finished product.

[0012] The metal bracket includes two symmetrically arranged flanges that extend along the direction of the mating parts to form support arms. The two support arms maintain a fixed distance from each other and are integrally formed with a reinforcing arc plate. The reinforcing arc plate is adapted to the accommodating space formed between the two reinforcing pieces to form a reinforcing structure.

[0013] As a further improvement of this utility model, a support plate is provided below the shelf. There are two support plates, which are respectively provided on both sides of the connecting member to cooperate with the connecting member and the shelf to form a support area.

[0014] As a further improvement of this utility model, the support plate includes a plate body, one side of which is provided with a positioning groove, and one side of each of the two positioning grooves is adapted to a support arm provided on both sides of the metal bracket.

[0015] As a further improvement of this utility model, the lower body includes two symmetrically arranged combination plates, and one side of the combination plate is provided with an inward groove for fitting with a metal bracket.

[0016] As a further improvement of this utility model, the groove of the combined plate is provided with positioning hole one and positioning hole two, which are used to cooperate with the flange that makes up the metal bracket to form a connection area.

[0017] As a further improvement of this utility model, two symmetrically arranged through holes are provided on one side of the flange, and fasteners are installed thereon, which penetrate the positioning hole one and positioning hole two of the combined plate, forcing the flange to be fixed in the groove of the combined plate.

[0018] As a further improvement of this utility model, a cover plate is provided on the top of the layer plate, and a protrusion is provided on the top of the cover plate to form a cavity, which is located above the reinforcing sheet.

[0019] As a further improvement of this utility model, a slot is provided at one end of the two shelves that are close to each other. The slot is adapted to the flange that makes up the metal bracket, and the shelf is fixed to the metal bracket by fasteners passing through the slot and the flange.

[0020] As a further improvement of this utility model, both sides of the docking member are provided with arc-shaped covers with a preset angle. One side of the arc-shaped cover is in contact with the outer side of the support plate, and the inner side of the docking member is provided with a snap-fit ​​area, the inner side of the snap-fit ​​area is adapted to the inner side of the metal bracket.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model forms a reinforced structure by adapting the reinforcing plate of the upper body to the reinforcing arc plate of the metal bracket, which can effectively disperse various external forces on the front lip, such as road impact force, air resistance, accidental collision force, etc. During vehicle operation, it can reduce stress concentration in the middle part of the front lip and reduce the risk of deformation and breakage.

[0023] The support plate, shelf, and connecting parts form a support area. The metal bracket cooperates with the support plate through the positioning groove. The combination plate of the lower body is adapted to the metal bracket, and the shelf is fixedly connected to the metal bracket. These provide multi-point support for the front lip and further enhance the stability of the overall structure.

[0024] When subjected to external force, the support plate absorbs part of the force and then transfers the force to the metal bracket through the cooperation of the positioning groove and the support arm. The metal bracket then distributes the force throughout the entire reinforced structure, so that the force is evenly applied to the connection between the front lip and the front bumper, avoiding excessive local stress on the front lip.

[0025] 2. The cavity of the top cover plate of the shelf can buffer the reinforcing sheet when it is subjected to external impact, protect the reinforcing sheet from excessive damage, and extend its service life. Furthermore, by using positioning holes, slots, fasteners, etc., the lower body and the metal bracket, the shelf and the metal bracket are tightly connected to each other, ensuring that the components will not loosen during vehicle operation and maintaining the integrity of the structure.

[0026] Meanwhile, the arc-shaped cover of the docking component fits snugly against the support plate, and the snap-fit ​​area is compatible with the metal bracket, so that the docking component, support plate and metal bracket form a tight whole, together providing stable support and reinforcement for the front lip and cooperating to cope with various external forces. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a three-dimensional structural diagram of the upper body, cover plate, lower body and metal support of this utility model;

[0029] Figure 2This is a three-dimensional structural diagram of the upper body, lower body, and metal support of this utility model;

[0030] Figure 3 This is an exploded view of the combined structure of the upper body, cover plate, lower body, metal support, and connecting parts of this utility model.

[0031] Figure 4 This is a schematic diagram of the exploded assembly structure of the upper body, cover plate, lower body, metal bracket, and docking parts of this utility model from another angle;

[0032] Figure 5 This is a side view of the upper body, cover plate, lower body and metal bracket of this utility model;

[0033] Figure 6 This is a three-dimensional structural diagram of the upper body, cover plate, lower body, and metal bracket of this utility model from another angle.

[0034] In the diagram: 1. Upper body; 2. Cover plate; 3. Lower body; 4. Metal bracket; 5. Connecting piece; 6. Support plate;

[0035] 11. Sheet; 12. Card slot; 13. Reinforcing plate; 14. Accommodating space;

[0036] 31. Combination plate; 32. Positioning hole one; 33. Positioning hole two;

[0037] 41. Reinforced curved plate; 42. Flange;

[0038] 61. Positioning groove; 62. Plate body. Detailed Implementation

[0039] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0040] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] Please see Figure 1 , Figure 2 , Figure 3 as well as Figure 4When a vehicle travels on an uneven road surface, the front lip is constantly subjected to impacts from the road surface. The long and thin front lip cannot withstand repeated impacts and is prone to deformation in the middle.

[0042] At the same time, when driving at high speed, the airflow around the front lip generates an upward or downward force, which accumulates in the middle part and may cause deformation of the front lip.

[0043] Even minor collisions with curbs or obstacles can directly cause damage, deformation, or breakage to the middle section of the front lip. Therefore, this application provides an aluminum alloy reinforcement structure, comprising:

[0044] The upper body 1 includes a layer plate 11. One or more reinforcing pieces 13 arranged in a linear array are provided in the middle of the layer plate 11. Each pair of reinforcing pieces 13 maintains a distance to form an accommodating space 14.

[0045] A connecting piece 5 is provided below the shelf 11, a metal bracket 4 is provided on one side of the connecting piece 5, and a lower body 3 is connected below the connecting piece 5 to form a finished product.

[0046] The metal bracket 4 includes two symmetrically arranged flanges 42, which extend along the direction of the mating member 5 to form support arms. The two support arms maintain a fixed distance and are integrally formed with a reinforcing arc plate 41. The reinforcing arc plate 41 is adapted to the accommodating space 14 formed between the two reinforcing pieces 13 to form a reinforcing structure.

[0047] Given that traditional car front lips are prone to deformation or even breakage due to their long length and weak structure, this aluminum alloy reinforced structure aims to enhance the strength and stability of the car front lip, reducing the risk of damage from various external forces during driving.

[0048] The upper body 1 is mainly composed of a shelf 11. The shelf 11 is usually made of aluminum alloy, which has the advantages of being lightweight, having high strength and good corrosion resistance, making it suitable for use in automotive parts.

[0049] One or more reinforcing plates 13 arranged in a linear array are provided in the middle of the shelf 11. The reinforcing plates 13 are also made of aluminum alloy, and their thickness may be slightly thicker than that of the shelf 11 to enhance the overall structural strength. A certain distance is maintained between every two reinforcing plates 13 to form an accommodating space 14;

[0050] A connecting piece 5 is provided below the shelf 11. The connecting piece 5 serves to connect the shelf 11 and the lower body 3. It is also made of aluminum alloy, and its shape and size match those of the shelf 11 and the lower body 3. A metal bracket 4 is provided on one side of the connecting piece 5. The metal bracket 4 is also made of aluminum alloy to ensure material consistency and compatibility with the overall structure.

[0051] The metal bracket 4 includes two symmetrically arranged flanges 42, which extend along the direction of the mating member 5 to form support arms. A fixed gap is maintained between the two support arms. This gap is determined to ensure that the metal bracket 4 can stably support and connect related components. The two support arms are integrally formed with a reinforcing arc plate 41. The design of the reinforcing arc plate 41 is one of the key aspects of this reinforcement structure. Its curvature and dimensions are precisely designed based on the accommodating space 14 formed between the reinforcing plates 13. When the reinforcing arc plate 41 is inserted into the accommodating space 14, it can fit tightly to form an effective reinforcement structure.

[0052] The lower body 3 is connected to the lower part of the connecting piece 5. The lower body 3 is also made of aluminum alloy, and its shape and structure are adapted to the upper body 1. The connecting piece 5 achieves a firm connection with the upper body 1, thus forming a complete finished product. The connection method can be welding, riveting, or bolting.

[0053] When this aluminum alloy reinforcing structure is applied to the front lip of a car, the upper body 1's layer 11 fits tightly against the upper part of the front lip, and the lower body 3 fits tightly against the lower part of the front lip. The support arm of the metal bracket 4 and the reinforcing arc plate 41 can effectively disperse various external forces on the front lip, such as road impact force, air resistance, and accidental collision force. In particular, after the reinforcing arc plate 41 is inserted into the accommodating space 14 formed by the reinforcing piece 13, it can enhance the support force of the middle part of the front lip and reduce the risk of deformation and breakage.

[0054] Compared to traditional car front lips, this aluminum alloy reinforced structure has significant advantages. Due to the use of aluminum alloy, it is lighter overall, adding less burden to the vehicle; at the same time, its unique structural design significantly improves the strength and stability of the front lip, extends its service life, and reduces maintenance and replacement costs.

[0055] Please refer to Figure 3. Figure 4 , Figure 5 as well as Figure 6 Below the shelf 11, there are two support plates 6, which are respectively located on both sides of the connecting piece 5, and are used to cooperate with the connecting piece 5 and the shelf 11 to form a support area.

[0056] The support plate 6 includes a plate body 62. A positioning groove 61 is provided on one side of the plate body 62. One side of the two positioning grooves 61 is adapted to the support arms provided on both sides of the metal bracket 4.

[0057] Building upon the existing aluminum alloy reinforced structure, a support plate 6 is installed below the layer 11 to further enhance the structure's stability and support capacity. This is because the center section of the front lip is prone to deformation or even breakage during vehicle operation, especially under road impacts, air resistance, and accidental collisions. The support plate 6, in conjunction with the connecting piece 5 and the layer 11, forms a support area, providing more comprehensive and stable support for the front lip, dispersing stress, and thus reducing the risk of problems in the center section of the front lip.

[0058] There are two support plates 6, one on each side of the mating member 5. This symmetrical arrangement helps to distribute the force on the front lip evenly, avoiding local deformation caused by uneven force. The support plates 6 on both sides work together with the mating member 5 and the layer plate 11 to jointly bear the various external forces transmitted from the front lip, ensuring the stability of the entire reinforced structure.

[0059] The support plate 6 includes a plate body 62, which is made of aluminum alloy, consistent with the material of the entire reinforcing structure, to ensure material compatibility and structural integrity. Aluminum alloy has advantages such as light weight, high strength, and good corrosion resistance, providing reliable support for the front lip without adding excessive weight.

[0060] A positioning groove 61 is provided on one side of the plate 62. The function of the positioning groove 61 is to fit with the support arms on both sides of the metal bracket 4. When the support arm is inserted into the positioning groove 61, a tight fit is achieved, ensuring a stable connection between the metal bracket 4 and the support plate 6. This helps improve the stability of the entire reinforced structure and ensures the accurate relative position of each component, allowing force to be transmitted and distributed according to the designed path. For example, if the size of the positioning groove 61 is too large, the support arm will wobble in the groove, failing to effectively transmit and distribute force; if the size of the positioning groove 61 is too small, the support arm cannot be inserted smoothly, affecting the assembly of the entire structure.

[0061] During vehicle operation, when the front lip of the car is subjected to impact forces from the road surface, air resistance at high speeds, or accidental collisions, these forces are transmitted through the front lip to the aluminum alloy reinforcement structure. The support area formed by the support plate 6, the layer plate 11, and the connecting piece 5 first absorbs part of the force. Then, through the cooperation of the positioning groove 61 and the support arm, the force is transferred to the metal bracket 4. The metal bracket 4 further distributes the force throughout the entire reinforcement structure, ultimately ensuring that the force is evenly applied to the connection between the front lip and the front bumper. This reduces stress concentration in the middle of the front lip, lowers the risk of deformation and breakage, and ensures that the front lip always forms a stable whole with the vehicle body during vehicle operation, maintaining a good appearance.

[0062] Please see Figure 4 , Figure 5 , Figure 6The lower body 3 includes two symmetrically arranged combination plates 31. One side of the combination plate 31 has an inward groove for fitting with the metal bracket 4.

[0063] The groove of the combination plate 31 is provided with positioning hole 1 32 and positioning hole 2 33, which are used to cooperate with the flange 42 that makes up the metal bracket 4 to form a connection area.

[0064] Two symmetrically arranged through holes are provided on one side of the flange 42, and fasteners are installed thereon. They also pass through the positioning hole 32 and positioning hole 33 of the combined plate 31, forcing the flange 42 to be fixed in the groove of the combined plate 31.

[0065] A cover plate 2 is provided on the top of the shelf 11. The top of the cover plate 2 has an upward protrusion to form a cavity, which is located above the reinforcing sheet 13.

[0066] Two shelves 11 are provided with a slot 12 at one end that is close to each other. The slot 12 is adapted to the flange 42 that makes up the metal bracket 4. Fasteners pass through the slot 12 and the flange 42 to fix the shelf 11 to the metal bracket 4.

[0067] Both sides of the docking part 5 are provided with arc-shaped covers with a preset angle. One side of the arc-shaped cover is in contact with the outer side of the support plate 6, and the inner side of the docking part 5 is provided with a snap-fit ​​area, which is adapted to the inner side of the metal bracket 4.

[0068] The lower body 3 consists of two symmetrically arranged composite plates 31, ensuring that the entire aluminum alloy reinforced structure can evenly distribute force when under stress, avoiding structural damage caused by localized stress concentration. One side of the composite plate 31 has an inwardly oriented groove, the size and shape of which are precisely designed according to the shape of the metal bracket 4, allowing the metal bracket 4 to be tightly embedded within it, achieving a perfect fit. This makes the connection between the lower body 3 and the metal bracket 4 more stable, enabling them to work together better during vehicle operation and jointly withstand external forces such as road impacts and air resistance.

[0069] Positioning holes 32 and 33 are provided in the groove of the composite plate 31. These two positioning holes are for cooperating with the flange 42 that makes up the metal bracket 4. The flange 42 has two symmetrically arranged through holes. When the metal bracket 4 is inserted into the groove of the composite plate 31, the positioning holes 32 and 33 and the through holes on the flange 42 will be in corresponding positions. At this time, fasteners, such as bolts, are installed so that they pass through the positioning holes 32 and 33 of the composite plate 31 and the through holes on the flange 42. By tightening the fasteners, the flange 42 is forced to be firmly fixed in the groove of the composite plate 31, ensuring that a firm connection area is formed between the lower body 3 and the metal bracket 4, and enhancing the stability of the entire reinforced structure.

[0070] A cover plate 2 is provided on the top of the shelf 11. The cover plate 2 is also made of aluminum alloy, which is consistent with the material of the entire reinforcing structure. The top of the cover plate 2 has an upward protrusion, which forms a cavity. This cavity is located above the reinforcing piece 13. The cavity has multiple functions. On the one hand, it can reduce the weight of the entire reinforcing structure to a certain extent, which is in line with the development trend of lightweight automotive parts. On the other hand, it can also buffer the reinforcing piece 13 when it is subjected to external impact, protect the reinforcing piece 13 from excessive damage, and extend the service life of the reinforcing piece 13.

[0071] Two adjacent panels 11 are provided with slots 12, the shape and size of which are adapted to the flanges 42 that make up the metal bracket 4. During assembly, the flanges 42 of the metal bracket 4 are aligned with the slots 12 and inserted, and then fasteners, such as bolts, are used to pass through the slots 12 and the flanges 42. By tightening the fasteners, the panels 11 and the metal bracket 4 are fixed together, further enhancing the connection strength between them and ensuring the integrity of the entire reinforced structure. This allows the panels 11 and the metal bracket 4 to jointly withstand various external forces during vehicle operation, reducing the risk of deformation or breakage of the front lip.

[0072] Both sides of the connecting piece 5 are provided with arc-shaped covers at a preset angle. The preset angle of the arc-shaped covers is determined according to the outer shape of the support plate 6 and the mechanical performance requirements of the entire reinforcing structure. One side of the arc-shaped cover fits against the outer side of the support plate 6, which can enhance the tightness of the connection between the connecting piece 5 and the support plate 6, and make the force transmission between the two smoother. At the same time, the inner side of the connecting piece 5 is provided with a snap-fit ​​area, the inner shape of which is adapted to the inner side of the metal bracket 4. When the metal bracket 4 is installed into the entire reinforcing structure, the inner side of the metal bracket 4 will embed into the snap-fit ​​area of ​​the connecting piece 5. Through this snap-fit ​​cooperation, the position of the metal bracket 4 is further fixed, so that the connecting piece 5, the support plate 6 and the metal bracket 4 form a tight whole, which together provides stable support and reinforcement for the front lip of the car. During vehicle operation, when subjected to various external forces, this integrated structure can effectively disperse and transmit forces, reduce stress concentration in the middle part of the front lip, thereby reducing the possibility of front lip deformation and breakage, and improving the service life and safety of the front lip of the car.

[0073] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An aluminum alloy reinforced structure, characterized in that it comprises: The upper body (1) includes a layer plate (11), and one or more reinforcing pieces (13) arranged in a linear array are provided in the middle of the layer plate (11). Each pair of reinforcing pieces (13) maintains a distance to form an accommodating space (14). A connecting piece (5) is provided below the shelf (11), a metal bracket (4) is provided on one side of the connecting piece (5), and a lower body (3) is connected below the connecting piece (5) to form a finished product. The metal bracket (4) includes two symmetrically arranged flanges (42), which extend along the direction of the mating member (5) to form a support arm. The two support arms maintain a fixed distance and are integrally formed with a reinforcing arc plate (41). The reinforcing arc plate (41) is adapted to the accommodating space (14) formed between the two reinforcing pieces (13) to form a reinforcing structure.

2. The aluminum alloy reinforced structure according to claim 1, characterized in that: A support plate (6) is provided below the shelf (11). There are two support plates (6), which are located on both sides of the connecting member (5) to cooperate with the connecting member (5) and the shelf (11) to form a support area.

3. The aluminum alloy reinforced structure according to claim 2, characterized in that: The support plate (6) includes a plate body (62), and a positioning groove (61) is provided on one side of the plate body (62). One side of the two positioning grooves (61) is adapted to the support arms provided on both sides of the metal bracket (4).

4. The aluminum alloy reinforced structure according to claim 1, characterized in that: The lower body (3) includes two symmetrically arranged combination plates (31), one side of which is provided with a groove for fitting with the metal bracket (4).

5. The aluminum alloy reinforced structure according to claim 4, characterized in that: The groove of the combined plate (31) is provided with positioning hole one (32) and positioning hole two (33) to cooperate with the flange (42) that makes up the metal bracket (4) to form a connection area.

6. The aluminum alloy reinforced structure according to claim 1, characterized in that: Two symmetrical through holes are provided on one side of the flange (42), and fasteners are installed thereon. They penetrate the positioning hole one (32) and positioning hole two (33) of the combination plate (31), forcing the flange (42) to be fixed in the groove of the combination plate (31).

7. The aluminum alloy reinforced structure according to claim 1, characterized in that: The top of the layer (11) is provided with a cover plate (2), and the top of the cover plate (2) is provided with an upward protrusion to form a cavity, which is located above the reinforcing sheet (13).

8. The aluminum alloy reinforced structure according to claim 1, characterized in that: The two shelves (11) are provided with a slot (12) at one end close to each other. The slot (12) is adapted to the flange (42) that makes up the metal bracket (4). Fasteners pass through the slot (12) and the flange (42) to fix the shelf (11) to the metal bracket (4).

9. The aluminum alloy reinforced structure according to claim 1, characterized in that: Both sides of the docking part (5) are provided with arc-shaped covers with a preset angle. One side of the arc-shaped cover is in contact with the outer side of the support plate (6), and the inner side of the docking part (5) is provided with a snap-fit ​​area. The inner side of the snap-fit ​​area is adapted to the inner side of the metal bracket (4).