Lightweight aluminum profile based on local reinforcement

Abstract

The invention relates to the technical field of aluminum profiles, and discloses a light-weight aluminum profile based on local reinforcement, which comprises an aluminum profile main body, a cavity is integrally formed in the aluminum profile body, loading grooves are formed in the top side and the bottom side of the aluminum profile body, two reinforcing blocks are symmetrically installed in the aluminum profile body in the length direction of the aluminum profile body, the two reinforcing blocks are located on the adjacent sides of the two loading grooves respectively, and a rhombic reinforcing piece is fixed between the two reinforcing blocks. Inclined supporting pieces fixed to the inner walls of the two sides of the aluminum profile body are installed on the two sides of the two reinforcing blocks correspondingly, and ventilation assemblies are installed on the two sides of the aluminum profile body correspondingly. The reinforcing blocks, the rhombic reinforcing pieces, the inclined supporting pieces and the elastic assemblies are arranged in the aluminum profile body, the steel balls are used for locking deformation, the inclined supporting pieces are used for dispersing stress, the elastic assemblies buffer external force and transmit gas to enhance supporting, and the compressive rigidity and deformation resistance of the aluminum profile under the extreme snow load and complex stress conditions are improved; and a dynamic enhanced supporting system is formed.

Description

Technical Field

[0001] This invention relates to the field of aluminum profile technology, and in particular to a lightweight aluminum profile based on local reinforcement. Background Technology

[0002] As a core pillar industry in the renewable energy sector, photovoltaic power generation is showing a trend of large-scale, high-density, and diversified development. Whether it is the large-scale deployment of centralized photovoltaic power stations or the widespread application of distributed photovoltaic systems in industrial and commercial plants and residential building roofs, more stringent requirements are placed on the performance of photovoltaic panel installation structures. In rooftop distributed photovoltaic installations, excessively heavy steel structures are prone to exceeding the roof's load-bearing limit, limiting their application in old buildings, lightweight roofs, and other scenarios. Therefore, lightweight aluminum profiles are generally chosen for photovoltaic panel installation. Using lightweight aluminum profiles to manufacture photovoltaic brackets, guide rails, and other installation components can significantly reduce the structure's self-weight. On the one hand, this reduces the cost and difficulty of transportation, hoisting, and other construction processes. On the other hand, aluminum profiles are corrosion-resistant. The naturally formed oxide film on their surface or after treatment with processes such as anodizing and electrophoretic coating can effectively resist the erosion of harsh outdoor environments, eliminating the need for frequent anti-corrosion maintenance.

[0003] Existing aluminum profiles for photovoltaic supports mostly adopt a hollow design to achieve structural lightweighting, and add a single longitudinal reinforcing rib inside the cavity to improve the overall bending stiffness. Although this reinforcing rib can enhance its structural strength, under snow conditions, the snow load acts on the tilted photovoltaic modules for a long time, and the load is concentrated on the support below along the tilt direction, causing the lower pressure zone of the aluminum profile to be continuously compressed. In addition, the elastic modulus of the aluminum profile decreases at low temperatures, and the pressure zone is prone to irreversible deformation. Existing aluminum profiles lack structures with local reinforcement, making it difficult to meet the stiffness and stability requirements under extreme snow loads.

[0004] To address the aforementioned issues, this application proposes a lightweight aluminum profile based on localized reinforcement. Summary of the Invention

[0005] This invention proposes a lightweight aluminum profile based on local reinforcement, which solves the problems in related technologies where the hollow design of photovoltaic bracket aluminum profiles leads to continuous pressure on the lower compression zone due to long-term snow load, resulting in a decrease in low-temperature elastic modulus, easy irreversible deformation, lack of local reinforcement, and difficulty in meeting the stiffness and stability requirements under extreme snow loads.

[0006] The present invention proposes a lightweight aluminum profile based on local reinforcement, comprising an aluminum profile body;

[0007] The aluminum profile body has an integrally formed cavity, and loading grooves are formed on the top and bottom sides of the aluminum profile body. Two reinforcing blocks are symmetrically installed in the aluminum profile body along its length direction. The two reinforcing blocks are located on the adjacent side of the two loading grooves, and a rhomboid reinforcing member is fixed between the two reinforcing blocks.

[0008] Two reinforcing blocks are respectively equipped with diagonal bracing members fixed to the inner walls of the aluminum profile body on both sides. Ventilation components are installed on both sides of the aluminum profile body, and the two ventilation components are respectively connected to the diagonal bracing members on both sides of the upper reinforcing block. Elastic components are installed on both sides of the diamond-shaped reinforcing member, and the two elastic components cooperate with the two ventilation components respectively.

[0009] When the loading slot is subjected to force, causing the diamond-shaped reinforcing member inside to deform, it pushes the elastic component outward, transporting the gas in the ventilation component to the diagonal brace to enhance the support of the reinforcing block.

[0010] As a further optimization of the present invention, the rhomboid reinforcing member includes a V-shaped plate and a steel ball. Two V-shaped plates are symmetrically installed between the two reinforcing blocks. A cavity is formed between the two V-shaped plates and the two reinforcing blocks, and a filling part is provided in the cavity. Sealing plates are fixed at both ends between the two V-shaped plates to seal the cavity. Two elastic components are respectively installed on the side of the two V-shaped plates that are far apart and abut against the filling part in the cavity.

[0011] As a further optimization of the present invention, the filling part includes steel balls, and the cavity formed between the two V-shaped plates and the two reinforcing blocks is filled with densely arranged steel balls, and the outer periphery of the steel balls is covered with a rubber layer.

[0012] As a further optimization of the present invention, the elastic component includes a force-bearing block and a rod-type elastic element. The rod-type elastic element is installed on both V-shaped plates. The adjacent ends of the two rod-type elastic elements are each equipped with a force-bearing block located in the cavity and in contact with the steel ball. The ends of the two rod-type elastic elements that are far apart from each other are respectively engaged with two ventilation components.

[0013] As a further optimization of the present invention, the rod-type elastic element includes a shaft and a spring. A transversely arranged shaft is slidably connected to both V-shaped plates. Two force-bearing blocks are respectively installed at the adjacent ends of the two shafts. A spring is sleeved on the shaft, and the two ends of the spring are respectively connected to the force-bearing block and the V-shaped plate. The two shafts are respectively engaged with two ventilation components.

[0014] As a further optimization of the present invention, the ventilation component includes strip tubes and air-thrusting components. Strip tubes are fixed on both sides of the aluminum profile body, and the two strip tubes are respectively connected to the diagonal bracing components on both sides of the upper reinforcing block. Air-thrusting components are connected to both strip tubes, and the two air-thrusting components are respectively installed on both sides of the aluminum profile body, and the two air-thrusting components are respectively engaged with two shafts.

[0015] As a further optimization of the present invention, the air-pushing component includes an air cylinder, a conduit, and a piston. Air cylinders are fixed on both sides of the aluminum profile body. A conduit connects the air cylinder to the strip tube. A piston is slidably disposed inside the air cylinder. Two shafts slide through both sides of the aluminum profile body and are connected to the two pistons.

[0016] As a further optimization of the present invention, an air hole is provided on the outer periphery of the end of the air cylinder near the aluminum profile body to allow the piston to move smoothly.

[0017] As a further optimization of the present invention, the inclined support includes a top block and a support tube. The reinforcing block has a trapezoidal structure, and the two sides of the reinforcing block have inclined surfaces that slope towards the center. The top block is fixed at the inclined surface positions on both sides of the reinforcing block. Multiple inclined support tubes are connected to the top block. The support tubes on the two top blocks are respectively fixed to the inner walls of the two sides of the aluminum profile body, and the support tubes are connected to the strip tube.

[0018] As a further optimization of the present invention, the support tubes on both sides of the reinforcing block form a triangular distribution structure within the aluminum profile body.

[0019] The above-described technical solution of the present invention has the following beneficial technical effects:

[0020] 1. To increase the compressive strength of the aluminum profile body, this invention symmetrically installs two reinforcing blocks inside the aluminum profile body and fixes a rhomboid reinforcing member between the two reinforcing blocks to form a reinforcing structure. When the aluminum profile body is subjected to heavy snow conditions, causing it to deform, the rhomboid reinforcing member between the two reinforcing blocks can bear the force. When the rhomboid reinforcing member deforms under force, the reinforcing block squeezes the densely arranged steel balls inside the rhomboid reinforcing member. The steel balls can play a limiting role to lock the deformation. The above design, through the combination of reinforcing blocks and rhomboid reinforcing members, compresses the steel balls to form a rigid lock when under pressure, which improves the local compressive stiffness of the aluminum profile body under extreme snow loads and avoids irreversible plastic deformation at low temperatures.

[0021] 2. When the aluminum profile body is subjected to stress and deformation, the diagonal bracing members fixed to the inner walls of both sides of the reinforcing block can play a supporting role. Since the diagonal bracing members are triangularly distributed in the aluminum profile body, when the top of the aluminum profile body is subjected to stress, the force can be transferred to both sides of the aluminum profile body, thereby dispersing the force on a single point, avoiding structural damage caused by local stress concentration, enhancing the overall structural strength, and effectively improving its resistance to deformation under complex stress conditions.

[0022] 3. When the aluminum profile body is subjected to force, causing the steel balls inside the diamond-shaped reinforcing member to be squeezed, the elastic components on both sides of the diamond-shaped reinforcing member move away from each other. When the elastic components move away, they can buffer and absorb part of the external force, reducing the degree of deformation of the aluminum profile body. Furthermore, the movement of the elastic components can push the gas in the ventilation component into the diagonal brace to enhance the force of the diagonal brace against the reinforcing block, further enhancing the overall strength. The above design can not only effectively buffer the deformation of the aluminum profile body when it is subjected to force, but also further enhance the support strength of the diagonal brace through the transmission of gas, forming a dynamic and mutually reinforcing support system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a lightweight aluminum profile based on local reinforcement proposed in this invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the aluminum profile body of the present invention;

[0025] Figure 3 For the present invention Figure 2 Overall front view;

[0026] Figure 4 This is a schematic diagram of the cooperative structure of the rhomboid reinforcing member, diagonal brace, ventilation component and elastic component of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the rhomboid reinforcing member of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0029] Figure 7 This is a schematic diagram of the thruster component of the present invention.

[0030] Reference numerals: 1. Aluminum profile body; 101. Loading groove; 102. Reinforcing block; 2. Diamond-shaped reinforcing member; 21. V-shaped plate; 22. Steel ball; 23. Sealing plate; 3. Diagonal brace; 31. Top block; 32. Support pipe; 4. Ventilation assembly; 41. Strip pipe; 42. Air pusher; 421. Air cylinder; 4211. Air hole; 422. Conduit; 423. Piston; 5. Elastic assembly; 51. Force-bearing block; 52. Rod-type elastic member; 521. Shaft; 522. Spring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0032] like Figure 1-7 As shown, the present invention proposes a lightweight aluminum profile based on local reinforcement, comprising an aluminum profile body 1;

[0033] A cavity is integrally formed inside the aluminum profile body 1, and loading grooves 101 are formed on the top and bottom sides of the aluminum profile body 1. Two reinforcing blocks 102 are symmetrically installed inside the aluminum profile body 1 along its length direction. The two reinforcing blocks 102 are located on the adjacent side of the two loading grooves 101 respectively, and a rhomboid reinforcing member 2 is fixed between the two reinforcing blocks 102.

[0034] Two reinforcing blocks 102 are respectively installed on both sides of the diagonal bracing 3 which is fixed to the inner walls of both sides of the aluminum profile body 1. Ventilation components 4 are installed on both sides of the aluminum profile body 1, and the two ventilation components 4 are respectively connected to the diagonal bracing 3 on both sides of the upper reinforcing block 102. Elastic components 5 are installed on both sides of the rhomboid reinforcing component 2, and the two elastic components 5 are respectively cooperated with the two ventilation components 4.

[0035] When the loading slot 101 is subjected to force, causing the rhomboid reinforcing member 2 inside to deform, it pushes the elastic component 5 to move outward, and transports the gas in the ventilation component 4 to the diagonal brace 3 to enhance the support of the reinforcing block 102.

[0036] The aluminum profile body 1 achieves a lightweight basic structure through an integrally formed cavity, and the loading grooves 101 on the top and bottom sides are used for the installation and fixing of components such as photovoltaic panels;

[0037] Two symmetrically arranged reinforcing blocks 102 correspond to the stress-bearing areas of the loading groove 101, forming local stress-bearing support points. The rhomboid reinforcing member 2 connects the two reinforcing blocks 102 to construct the core stress transmission structure.

[0038] The diagonal bracing members 3 on both sides of the reinforcing block 102 are fixed to the inner wall of the aluminum profile body 1 to form a lateral support system and disperse the longitudinal force;

[0039] When the aluminum profile body 1 is subjected to loads such as snow accumulation, the force is transmitted to the rhomboid reinforcing member 2, causing it to deform. The thrust generated by the deformation pushes the elastic component 5 outward, thereby squeezing the gas in the ventilation component 4. The gas enters the diagonal brace 3, increasing the internal pressure of the diagonal brace 3 and enhancing the support force on the reinforcing block 102. This achieves a dynamic response of force, deformation, gas pressurization, and support reinforcement, effectively resisting local pressure deformation, improving the stiffness and stability of the aluminum profile body 1 under extreme loads, and preventing irreversible damage to the structure due to long-term pressure.

[0040] In this embodiment, the rhomboid reinforcing member 2 includes a V-shaped plate 21 and a steel ball 22. Two V-shaped plates 21 are symmetrically installed between the two reinforcing blocks 102. A cavity is formed between the two V-shaped plates 21 and the two reinforcing blocks 102, and a filling part is provided in the cavity. Sealing plates 23 are fixed at both ends between the two V-shaped plates 21 to seal the cavity, ensure that the filling part is in a stable stress environment, and prevent the filling medium from shifting under the action of external force. Two elastic components 5 are respectively installed on the side of the two V-shaped plates 21 that is far away from each other and abut against the filling part in the cavity.

[0041] Two V-shaped plates 21 are symmetrically installed between the reinforcing blocks 102. Their V-shaped structure has anti-deformation characteristics and can decompose the longitudinal force into lateral forces on both sides, thus dispersing local stress concentration.

[0042] When the rhomboid reinforcement 2 is under load, the deformation of the V-shaped plate 21 will directly act on the filling part, and the filling part will evenly transmit the force to the elastic component 5, causing the elastic component 5 to move synchronously. This structure achieves uniform distribution and transmission of force through the force decomposition of the V-shaped plate 21, the stable constraint of the sealed cavity, and the force transmission of the elastic component 5, thereby improving the overall deformation resistance of the rhomboid reinforcement 2.

[0043] In this embodiment, the filling part includes steel balls 22. The cavity formed between the two V-shaped plates 21 and the two reinforcing blocks 102 is filled with densely arranged steel balls 22, and the outer periphery of the steel balls 22 is covered with a rubber layer. The densely arranged steel balls 22 in the cavity constitute a flexible-rigid composite filling structure. The steel balls 22 themselves have high strength and rigidity, which can provide effective support when under pressure. The dense arrangement allows the steel balls 22 to form multi-point contact, realizing multi-directional force transmission. The rubber layer covering the outer periphery of the steel balls 22 plays a buffering and anti-slip role. On the one hand, it absorbs part of the impact force in the initial stage of force application, reducing the instantaneous stress peak of the structure. On the other hand, it increases the friction between the steel balls 22 and between the steel balls 22 and the V-shaped plates 21 and the reinforcing blocks 102, preventing the steel balls 22 from sliding and shifting when under force, and ensuring the stability of force transmission.

[0044] When a load is applied to the rhomboid reinforcing member 2, the reinforcing block 102 compresses the steel ball 22. The group of steel balls 22 forms a rigid support system through mutual compression. By utilizing the force conversion mechanism from point to surface, the local concentrated load is distributed to the entire cavity area, which improves the compressive strength of the rhomboid reinforcing member 2. At the same time, the buffering effect of the rubber layer reduces the rigid collision between the steel ball 22 and other components in the low temperature environment, reduces the risk of structural damage, and enhances the structural stability under low temperature conditions.

[0045] In this embodiment, the elastic component 5 includes a force-receiving block 51 and a rod-type elastic element 52. Rod-type elastic elements 52 are installed on both V-shaped plates 21. At adjacent ends of the two rod-type elastic elements 52, a force-receiving block 51 is installed, located within the cavity and contacting the steel ball 22. The ends of the two rod-type elastic elements 52 that are furthest apart are respectively engaged with two ventilation components 4. When the steel ball 22 is compressed, the resulting lateral thrust acts on the force-receiving block 51, which transmits the force to the rod-type elastic element 52, causing the rod-type elastic element 52 to undergo axial extension and retraction. The elastic properties of component 52 enable it to deform and buffer under stress, absorbing part of the load energy and reducing the impact on the overall structure. At the same time, its extension and retraction motion drives the ventilation component 4 to move. This structure realizes the force transmission path of the steel ball 22 being subjected to force, the force block 51 transmitting the force to the rod-type elastic component 52. It achieves buffering and force relief through elastic deformation and transmits power through the rigid rod, ensuring that the ventilation component 4 can respond to load changes in a timely manner, providing a stable power input for subsequent gas pressurization, and improving the response sensitivity and reliability of the entire reinforcement system.

[0046] In this embodiment, the rod-type elastic element 52 includes a shaft 521 and a spring 522. The two V-shaped plates 21 are slidably connected to the transversely arranged shaft 521. Two force-bearing blocks 51 are respectively installed at the adjacent ends of the two shafts 521. The spring 522 is sleeved on the shaft 521, and the two ends of the spring 522 are respectively connected to the force-bearing block 51 and the V-shaped plate 21. The two shafts 521 are respectively engaged with the two ventilation components 4. When the steel ball 22 squeezes the force-bearing block 51, the force-bearing block 51 pushes the shaft 521 to move towards the ventilation component 4. The spring 522 is compressed and stores elastic potential energy. At the same time, the shaft 521 pushes the ventilation component 4 to perform an inflation action. When the load disappears, the spring 522 releases the elastic potential energy and pulls the force-bearing block 51 and the shaft 521 to reset, preparing for the next force response.

[0047] In this embodiment, the ventilation component 4 includes a strip tube 41 and a thruster 42. The aluminum profile body 1 has strip tubes 41 fixed on both sides, and the two strip tubes 41 are respectively connected to the diagonal braces 3 on both sides of the upper reinforcing block 102. The two strip tubes 41 are connected to the thrusters 42. The two thrusters 42 are respectively installed on both sides of the aluminum profile body 1, and the two thrusters 42 are respectively engaged with two shafts 521.

[0048] When the shaft 521 moves outward, it pushes the internal structure of the air thruster 42 to move, and delivers air through the strip tube 41 to the diagonal brace 3 to enhance the support force of the diagonal brace 3 on the reinforcing block 102.

[0049] In this embodiment, the air-pushing component 42 includes an air cylinder 421, a conduit 422, and a piston 423. Air cylinders 421 are fixed on both sides of the aluminum profile body 1. A conduit 422 connects the air cylinder 421 to the strip tube 41. A piston 423 is slidably disposed inside the air cylinder 421. Two shafts 521 slide through both sides of the aluminum profile body 1 and are connected to the two pistons 423. When the shafts 521 push the piston 423 to move inside the air cylinder 421, the air inside the air cylinder 421 flows quickly into the strip tube 41 through the conduit 422 and is then distributed to the diagonal brace 3, providing direct power for the support reinforcement of the diagonal brace 3. This enables the diagonal brace 3 to quickly obtain enhanced support force under load, thereby improving the dynamic force response capability of the aluminum profile body.

[0050] In this embodiment, an air hole 4211 is provided on the outer periphery of the end of the air cylinder 421 near the aluminum profile body 1 to allow the piston 423 to move smoothly.

[0051] In this embodiment, the diagonal brace 3 includes a top block 31 and a support tube 32. The reinforcing block 102 has a trapezoidal structure, and both sides of the reinforcing block 102 have inclined surfaces that slope towards the center. The top block 31 is fixed to the inclined surfaces on both sides of the reinforcing block 102. Multiple inclined support tubes 32 are connected to the top block 31. The support tubes 32 on the two top blocks 31 are respectively fixed to the inner walls of both sides of the aluminum profile body 1, and the support tubes 32 are connected to the strip tube 41. When high-pressure gas enters the support tube 32 from the strip tube 41, the internal air pressure of the support tube 32 increases, which enhances its rigidity and generates an outward pressure on the top block 31. The top block 31 transmits this force to the inclined surface of the reinforcing block 102, forming a lateral support reinforcing force on the reinforcing block 102. The inclined support tubes 32 can convert the longitudinal load into a lateral support force, disperse the local stress on the reinforcing block 102, and avoid stress concentration.

[0052] In this embodiment, the support tubes 32 on both sides of the reinforcing block 102 form a triangular distribution structure within the aluminum profile body 1. This triangular structure can evenly decompose the longitudinal force from the reinforcing block 102 into components in three directions, transmitting them to different inner wall positions of the aluminum profile body 1. This avoids structural damage caused by excessive force in one direction. Each support tube 32, as a side of the triangle, not only bears its own supporting force but also mutually restrains other support tubes 32, forming a complementary force distribution. When the aluminum profile body 1 bears longitudinal loads such as snow accumulation, the force is distributed through the reinforcing block... 102 is transmitted to the top block 31, and then distributed to the triangularly distributed support tubes 32. The support tubes 32 transmit the force to the inner wall of the aluminum profile body 1, realizing multi-directional distribution and uniform bearing of the force. This distribution method maximizes the support efficiency of the support tubes 32. Even if the local support tubes 32 are subjected to greater pressure, they can avoid overload damage through the restraining effect of the triangular structure. This improves the overall support stability and anti-damage ability of the diagonal brace 3, provides reliable lateral protection for the aluminum profile body 1, and ensures that it will not undergo lateral deformation or collapse under extreme loads.

[0053] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A lightweight aluminum profile based on localized reinforcement, characterized in that, Including the aluminum profile body (1); The aluminum profile body (1) has an integrally formed cavity, and loading grooves (101) are formed on the top and bottom sides of the aluminum profile body (1). Two reinforcing blocks (102) are symmetrically installed in the aluminum profile body (1) along its length direction. The two reinforcing blocks (102) are located on the adjacent side of the two loading grooves (101), and a rhomboid reinforcing member (2) is fixed between the two reinforcing blocks (102). Two reinforcing blocks (102) are respectively equipped with diagonal bracing members (3) fixed to the inner walls of the aluminum profile body (1) on both sides. Ventilation components (4) are installed on both sides of the aluminum profile body (1), and the two ventilation components (4) are respectively connected to the diagonal bracing members (3) on both sides of the upper reinforcing block (102). Elastic components (5) are installed on both sides of the rhomboid reinforcing member (2), and the two elastic components (5) are respectively engaged with the two ventilation components (4). When the loading slot (101) is subjected to force, causing the rhomboid reinforcing member (2) inside to deform, it pushes the elastic component (5) to move outward, and transports the gas in the ventilation component (4) to the inclined support member (3) to enhance the support of the reinforcing block (102).

2. The lightweight aluminum profile based on local reinforcement according to claim 1, characterized in that, The rhomboid reinforcing member (2) includes a V-shaped plate (21) and a steel ball (22). Two V-shaped plates (21) are symmetrically installed between the two reinforcing blocks (102). A cavity is formed between the two V-shaped plates (21) and the two reinforcing blocks (102), and a filling part is provided in the cavity. Sealing plates (23) are fixed at both ends between the two V-shaped plates (21) to seal the cavity. Two elastic components (5) are respectively installed on the side of the two V-shaped plates (21) that are far apart and abut against the filling part in the cavity.

3. A lightweight aluminum profile based on localized reinforcement according to claim 2, characterized in that, The filling part includes steel balls (22), and the cavity formed between the two V-shaped plates (21) and the two reinforcing blocks (102) is filled with densely arranged steel balls (22), and the outer periphery of the steel balls (22) is covered with a rubber layer.

4. A lightweight aluminum profile based on localized reinforcement according to claim 3, characterized in that, The elastic component (5) includes a force-bearing block (51) and a rod-type elastic element (52). The rod-type elastic element (52) is installed on both V-shaped plates (21). The adjacent ends of the two rod-type elastic elements (52) are equipped with a force-bearing block (51) located in the cavity and in contact with the steel ball (22). The ends of the two rod-type elastic elements (52) that are far apart are respectively engaged with two ventilation components (4).

5. A lightweight aluminum profile based on localized reinforcement according to claim 4, characterized in that, The rod-type elastic element (52) includes a shaft (521) and a spring (522). The two V-shaped plates (21) are slidably connected to the horizontally arranged shaft (521). Two force-bearing blocks (51) are respectively installed at the adjacent ends of the two shafts (521). The shaft (521) is fitted with a spring (522), and the two ends of the spring (522) are respectively connected to the force-bearing block (51) and the V-shaped plate (21). The two shafts (521) are respectively engaged with two ventilation components (4).

6. A lightweight aluminum profile based on localized reinforcement according to claim 5, characterized in that, The ventilation assembly (4) includes a strip tube (41) and a thruster (42). The aluminum profile body (1) is fixed with strip tubes (41) on both sides, and the two strip tubes (41) are respectively connected to the diagonal bracing (3) on both sides of the upper reinforcing block (102). The two strip tubes (41) are connected with thrusters (42). The two thrusters (42) are respectively installed on both sides of the aluminum profile body (1), and the two thrusters (42) are respectively engaged with two shafts (521).

7. A lightweight aluminum profile based on localized reinforcement according to claim 6, characterized in that, The air-pushing component (42) includes an air cylinder (421), a conduit (422), and a piston (423). An air cylinder (421) is fixed on both sides of the aluminum profile body (1). A conduit (422) is connected between the air cylinder (421) and the strip tube (41). A piston (423) is slidably disposed inside the air cylinder (421). Two shafts (521) slide through both sides of the aluminum profile body (1) and are connected to the two pistons (423).

8. A lightweight aluminum profile based on localized reinforcement according to claim 7, characterized in that, The air cylinder (421) has an air hole (4211) on the outer periphery of one end near the aluminum profile body (1) for the piston (423) to move smoothly.

9. A lightweight aluminum profile based on localized reinforcement according to claim 6, characterized in that, The inclined support (3) includes a top block (31) and a support tube (32). The reinforcing block (102) has a trapezoidal structure, and the two sides of the reinforcing block (102) have inclined surfaces that slope towards the center. The top block (31) is fixed on the inclined surfaces on both sides of the reinforcing block (102). Multiple inclined support tubes (32) are connected to the top block (31). The support tubes (32) on the two top blocks (31) are fixed to the inner walls on both sides of the aluminum profile body (1), and the support tubes (32) are connected to the strip tube (41).

10. A lightweight aluminum profile based on localized reinforcement according to claim 9, characterized in that, The support tubes (32) on both sides of the reinforcing block (102) form a triangular distribution structure within the aluminum profile body (1).

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