High-strength and impact-resistant aluminum material structure

Abstract

The utility model belongs to the field of metal structure engineering, and particularly relates to a high-strength and impact-resistant aluminum material structure which comprises a main body frame and a deformable supporting assembly, the main body frame is a long-strip-shaped aluminum strip with the length larger than or equal to 5 meters, and a double-layer gradient reinforcing rib assembly is arranged on the surface of the long-strip-shaped aluminum strip. A reinforcing seat in a deformable supporting assembly is matched with a first mounting groove in the side face of a long-strip-shaped aluminum strip, after matching of the reinforcing seat is completed, a limiting bolt penetrates through a limiting hole so that the reinforcing seat and the long-strip-shaped aluminum strip can be locked and matched, and after locking matching is completed, a mounting cushion block is mounted in a second mounting groove; a positioning bolt penetrates through a positioning hole to lock and match an installation cushion block and a long-strip-shaped aluminum strip, a connecting rod in a deformable supporting assembly rotates around a hinged joint to deform, an elastic energy absorption element absorbs impact kinetic energy and converts the impact kinetic energy into elastic potential energy, meanwhile, longitudinal reinforcing ribs on the surface of the connecting rod restrain buckling deformation, and multi-stage energy dissipation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of metal structure engineering technology, specifically a high-strength and impact-resistant aluminum structure. Background Technology

[0002] Aluminum sheet refers to rectangular sheet material rolled from aluminum ingots. It is commonly used in building decoration, electrical processing and other fields. It has advantages such as being lightweight and corrosion resistant. This sheet is a silent aluminum sheet, which is made of aluminum sheet and sound insulation material. It is used to isolate noise and reduce the impact of noise on people.

[0003] Currently, aluminum structures have the following drawbacks when handling long aluminum sections exceeding 5 meters in length, making them unsuitable for applications such as bridges, large supports, and aerospace:

[0004] 1. The long dimensions result in significant flexural deformation due to its own weight, and conventional stiffener designs cannot effectively disperse longitudinal stress;

[0005] 2. Impact loads tend to cause stress concentration in the middle of long structures. Current deformable support components are not convenient for distributed installation of long aluminum materials. Structures that rely solely on rigid reinforcement ribs are prone to stress concentration and fracture under impact loads. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a high-strength and impact-resistant aluminum structure.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The high-strength and impact-resistant aluminum structure of this utility model includes a main frame and a deformable support component. The main frame is a long strip aluminum bar with a length of ≥5 meters. The surface of the long strip aluminum bar is provided with a double-layer gradient reinforcing rib assembly. Support column groups are arranged at intervals along the length direction on the inner wall of the long strip aluminum bar. The deformable support component adopts a segmented connecting rod. The segmented connecting rod is fixedly connected to a universal hinge node at one end to form a distributed energy absorption unit.

[0008] Preferably, the double-layer gradient reinforcing rib assembly includes an edge reinforcing area and a central reinforcing area. The central reinforcing area is provided with longitudinal reinforcing ribs parallel to the length direction of the frame, and the longitudinal reinforcing ribs and orthogonally arranged transverse reinforcing ribs form a mesh.

[0009] Preferably, the support column group includes 2-3 hollow aluminum columns with a diameter of 30-40mm. The hollow aluminum columns are evenly distributed along the width of the long aluminum strip and connect the upper and lower surfaces to form a "well"-shaped support structure. The corners of the long aluminum strip are provided with through positioning holes, and the inner wall of the long aluminum strip is evenly distributed with fixedly connected frame inner walls.

[0010] Preferably, the length of a single segment of the segmented connecting rod is ≤2 meters, and adjacent segments of the segmented connecting rod are fixedly connected by universal joints, which allow the segmented connecting rod to deflect within a range of ±15°.

[0011] Preferably, the sleeve surface is provided with multiple fixedly connected reinforcing ribs, the height of the reinforcing ribs is 3-4mm, and the other end of the reinforcing ribs is fixedly connected to the inner wall of the reinforcing seat. The central area of ​​the universal hinge node is provided with a limiting hole that penetrates the main frame. A reinforcing rib is fixedly connected to the oblique extension on the inner side of the universal hinge node. The side of the reinforcing seat is slidably connected with a first mounting groove, the first mounting groove being linearly arrayed on a long strip of aluminum. The deformable support assembly is slidably connected to the first mounting groove on the side of the main frame.

[0012] Preferably, a second mounting slot is provided at the rear end of the first mounting slot.

[0013] Preferably, the inner wall of the second mounting groove is slidably connected to a mounting pad corresponding to the groove, and the side opening of the mounting pad corresponds to the positioning hole.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a high-strength and impact-resistant aluminum structure. Current deformable support components are not convenient for distributed installation of long aluminum materials. Structures relying solely on rigid reinforcing ribs are prone to stress concentration and fracture under impact loads. The deformable support component of this application addresses this by having a reinforcing seat slide into a first mounting groove on the side of a long aluminum strip. After the reinforcing seat is engaged, a limiting bolt passes through the limiting hole to lock the reinforcing seat and the long aluminum strip in place. After locking, a mounting pad is installed in a second mounting groove, allowing a positioning bolt to pass through the positioning hole to align the mounting pad with the long aluminum strip. By locking the connection, the connecting rod in the deformable support assembly rotates around the hinge node to generate deformation. The elastic energy-absorbing element absorbs the impact kinetic energy and converts it into elastic potential energy. At the same time, the longitudinal stiffeners on the surface of the connecting rod inhibit buckling deformation, realizing multi-stage energy dissipation. The deformable support assembly is connected to the main frame through the hinge node to form a rectangular composite structure with four-sided support. This ensures that the support unit has a stable 120° triangular posture when there is no load, and can be folded to within 60° when impacted. The elastic elements are evenly distributed along the length of the frame to form multi-point buffers and prevent stress concentration in the middle, thus achieving a systematic improvement in strength, impact resistance and protection performance.

[0016] 2. This utility model provides a high-strength and impact-resistant aluminum structure, which adds longitudinal auxiliary reinforcing ribs to form an orthogonal network + longitudinal support reinforcement system with transverse reinforcing ribs. The transverse ribs disperse the stress in the width direction, the longitudinal ribs resist the deflection in the length direction, and the intersection nodes enhance the overall rigidity. The impact load is first borne by the corresponding reinforcing ribs at any position on the surface of the main frame, and then evenly distributed to the four corner hinge nodes through the gradient network from the edge reinforcement area to the center reinforcement area, and then transmitted to the elastic element through the connecting rod, thus avoiding single-point overload. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the device in this utility model;

[0019] Figure 2 This is a schematic diagram of the support column assembly structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the deformable support component structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the double-layer gradient reinforcing rib assembly structure in this utility model.

[0022] In the diagram: 1. Main frame; 11. Long aluminum strip; 12. Support column assembly; 13. Hollow aluminum column; 14. Inner wall of the frame; 15. Positioning hole; 2. Deformable support assembly; 21. Reinforcing seat; 22. Universal hinge node; 23. Limiting hole; 24. Segmented connecting rod; 25. Sleeve; 26. First mounting slot; 27. Second mounting slot; 28. Reinforcing rib; 3. Double-layer gradient reinforcing rib assembly; 31. Central reinforcing area; 33. Edge reinforcing area; 34. Transverse reinforcing rib; 35. Longitudinal reinforcing rib. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-4As shown in the figure, a high-strength and impact-resistant aluminum structure according to an embodiment of the present invention includes a main frame 1 and a deformable support assembly 2. The main frame 1 is a long aluminum strip 11 with a length ≥ 5 meters. A double-layer gradient reinforcing rib assembly 3 is provided on the surface of the long aluminum strip 11. Support column groups 12 are spaced apart along the length of the inner wall of the long aluminum strip 11. The deformable support assembly 2 adopts segmented connecting rods 24. The segmented connecting rods 24 are fixedly connected at one end to a universal hinge node 22 to form a distributed energy absorption unit. The length of a single segment of the segmented connecting rod 24 is ≤ 2 meters. Adjacent segments of the segmented connecting rod 24 are fixedly connected through the universal hinge node 22. The universal hinge node 22 allows the segmented connecting rod 24 to rotate within ±15°. Within the deflection range, the sleeve 25 is provided with multiple fixedly connected reinforcing ribs on its surface. The height of the reinforcing ribs is 3-4mm, and the other end of the reinforcing ribs is fixedly connected to the inner wall of the reinforcing seat 21. The center area of ​​the universal hinge node 22 is provided with a limiting hole 23 that penetrates the main frame 1. The oblique extension of the inner side of the universal hinge node 22 is fixedly connected with a reinforcing rib 28. The side of the reinforcing seat 21 is slidably connected with a first mounting groove 26. The first mounting groove 26 is linearly arrayed on the long aluminum strip 11. The deformable support component 2 is slidably connected to the first mounting groove 26 on the side of the main frame 1. The rear end of the first mounting groove 26 is provided with a second mounting groove 27. The inner wall of the second mounting groove 27 is slidably connected with a mounting pad corresponding to the groove. The side opening of the mounting pad corresponds to the positioning hole 15.

[0025] Specifically, by engaging the reinforcing seat 21 in the deformable support assembly 2 with the first mounting groove 26 on the side of the elongated aluminum strip 11, after the reinforcing seat 21 is engaged, a limiting bolt is passed through the limiting hole 23 to lock the reinforcing seat 21 and the elongated aluminum strip 11. After the locking engagement is completed, the mounting pad is installed in the second mounting groove 27, so that the positioning bolt passes through the positioning hole 15 to lock the mounting pad and the elongated aluminum strip 11. The connecting rod in the deformable support assembly 2 rotates around the hinge node to generate deformation. The elastic energy-absorbing element absorbs the impact kinetic energy and converts it into elastic potential energy. At the same time, the longitudinal reinforcing ribs 35 on the surface of the connecting rod suppress buckling deformation, realizing multi-stage energy dissipation.

[0026] Specifically, the deformable support component 2 is connected to the main frame 1 through the universal hinge node 22 to form a rectangular composite structure with four-sided support. This ensures that the support unit has a stable triangular posture of 120° when there is no load, and can be folded to within 60° when subjected to impact. The elastic elements are evenly distributed in the length direction of the frame to form multi-point buffer, prevent stress concentration in the middle, and achieve a systematic improvement in strength, impact resistance and protection performance.

[0027] Specifically, the impact load is transmitted from the external impact to the surface stiffeners of the main frame 1 (the edge area initially bears the load and the three-dimensional network is distributed to the center area), then to the support column group 12 (vertically transmitted to the upper and lower surfaces), and then to the deformable support component 2 (segmented connecting rod 24 rotates + elastic element compresses and absorbs energy). The universal hinge node 22 allows the segmented connecting rod 24 to deflect in coordination when bending a long dimension, avoiding Euler instability caused by excessive length of a single connecting rod.

[0028] Specifically, at the connection end between the segmented connecting rod 24 and the reinforcing seat 21, the node contains a bearing or ball joint structure, allowing the connecting rod to deflect ±15° in the XY plane, adapting to bending deformation under long dimensions. A sleeve 25 with circumferential reinforcing ribs is sleeved on the outside of the elastic element, and the length of the sleeve 25 is 80% of the free length of the elastic element.

[0029] like Figure 2 , Figure 4 As shown, the double-layer gradient reinforcing rib assembly 3 includes an edge reinforcing area 33 and a central reinforcing area 31. The central reinforcing area 31 is provided with longitudinal reinforcing ribs 35 parallel to the length direction of the frame, and the longitudinal reinforcing ribs 35 and the orthogonally arranged transverse reinforcing ribs 34 form a mesh. The support column group 12 includes 2-3 hollow aluminum columns 13 with a diameter of 30-40mm. The hollow aluminum columns 13 are evenly distributed along the width direction of the long aluminum strip 11 and connect the upper and lower surfaces to form a "well" shaped support structure. The corners of the long aluminum strip 11 are provided with through positioning holes 15, and the inner wall of the long aluminum strip 11 is evenly distributed with fixedly connected frame inner walls 14.

[0030] Specifically, by adding longitudinal stiffeners 35, an orthogonal network + longitudinal support reinforcement system is formed with transverse stiffeners 34. The transverse stiffeners disperse the stress in the width direction, the longitudinal stiffeners resist the deflection in the length direction, and the intersection nodes enhance the overall stiffness. The impact load from any position on the surface of the main frame 1 is first borne by the stiffeners in the corresponding area, and then evenly distributed to the four corner hinge nodes through the gradient network from the edge reinforcement area 33 to the center reinforcement area 31, and then transmitted to the elastic element through the connecting rod, thus avoiding single-point overload.

[0031] Working principle: By engaging the reinforcing seat 21 in the deformable support assembly 2 with the first mounting groove 26 on the side of the long aluminum strip 11, after the reinforcing seat 21 is engaged, the limiting bolt passes through the limiting hole 23 to lock the reinforcing seat 21 and the long aluminum strip 11. After the locking engagement is completed, the mounting pad is installed in the second mounting groove 27, so that the positioning bolt passes through the positioning hole 15 to lock the mounting pad and the long aluminum strip 11. The connecting rod in the deformable support assembly 2 rotates around the hinge node to generate deformation. The elastic energy-absorbing element absorbs the impact kinetic energy and converts it into elastic potential energy. At the same time, the longitudinal reinforcing ribs 35 on the surface of the connecting rod inhibit buckling deformation, realizing multi-stage energy dissipation.

[0032] The deformable support component 2 is connected to the main frame 1 through the universal hinge node 22 to form a rectangular composite structure with four-sided support. This ensures that the support unit has a stable triangular posture of 120° when there is no load, and can be folded to within 60° when subjected to impact. The elastic elements are evenly distributed in the length direction of the frame to form multi-point buffer, prevent stress concentration in the middle, and achieve a systematic improvement in strength, impact resistance and protection performance.

[0033] Furthermore, by adding longitudinal stiffeners 35, an orthogonal network + longitudinal support reinforcement system is formed with transverse stiffeners 34. The transverse stiffeners disperse the stress in the width direction, the longitudinal stiffeners resist the deflection in the length direction, and the intersection nodes enhance the overall stiffness. The impact load from any position on the surface of the main frame 1 is first borne by the stiffeners in the corresponding area, and then evenly distributed to the four corner hinge nodes through the gradient network from the edge reinforcement area 33 to the center reinforcement area 31, and then transmitted to the elastic element through the connecting rod, thus avoiding single-point overload.

[0034] 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 illustrative of the principles of this 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. A high-strength and impact-resistant aluminum structure, comprising a main frame (1) and a deformable support assembly (2), characterized in that: The main frame (1) is constructed from long aluminum strips (11) with a length of ≥5 meters. The surface of the long aluminum strips (11) is provided with double-layer gradient reinforcing ribs (3), and the inner wall of the long aluminum strips (11) is provided with support column groups (12) at intervals along the length direction. The inner wall of the main frame (1) is fitted with an array of deformable support components (2), the deformable support components (2) include segmented connecting rods (24), the segmented connecting rods (24) are fixedly connected to a universal hinge node (22) at one end to form a distributed energy absorption unit.

2. The high-strength and impact-resistant aluminum structure according to claim 1, characterized in that: The double-layer gradient reinforcing rib assembly (3) includes an edge reinforcing area (33) and a central reinforcing area (31). The central reinforcing area (31) is provided with longitudinal reinforcing ribs (35) parallel to the length direction of the frame, and the longitudinal reinforcing ribs (35) and the orthogonally arranged transverse reinforcing ribs (34) form a mesh.

3. The high-strength and impact-resistant aluminum structure according to claim 1, characterized in that: The support column group (12) includes two hollow aluminum columns (13). The hollow aluminum columns (13) have a diameter of 30-40mm. The hollow aluminum columns (13) are evenly distributed along the width direction of the long aluminum strip (11) and connected to the upper and lower surfaces to form a "well" shaped support structure. The long aluminum strip (11) has through positioning holes (15) at its corners. The long aluminum strip (11) has fixedly connected frame inner walls (14) evenly distributed on its inner wall.

4. The high-strength and impact-resistant aluminum structure according to claim 1, characterized in that: The segmented connecting rod (24) has a single segment length of ≤2 meters. The adjacent segments of the segmented connecting rod (24) are fixedly connected by a universal joint (22). The universal joint (22) allows the segmented connecting rod (24) to deflect within a range of ±15°.

5. A high-strength and impact-resistant aluminum structure according to claim 1, characterized in that: The segmented connecting rod (24) is slidably connected to a sleeve (25). The sleeve (25) has multiple fixed reinforcing ribs on its surface. The reinforcing ribs are 3-4 mm high and are fixedly connected to the inner wall of the reinforcing seat (21) above. The universal hinge node (22) has a limiting hole (23) that penetrates the main frame (1) in the center area. A reinforcing rib (28) is fixedly connected to the oblique extension of the inner side of the universal hinge node (22), and a first mounting groove (26) is slidably connected to the side of the reinforcing seat (21). The first mounting groove (26) is linearly arrayed on the side of the long aluminum strip (11), and the deformable support component (2) is slidably connected to the first mounting groove (26) on the side of the main frame (1).

6. A high-strength and impact-resistant aluminum structure according to claim 5, characterized in that: A second mounting slot (27) is provided at the rear end of the first mounting slot (26).

7. A high-strength and impact-resistant aluminum structure according to claim 6, characterized in that: The inner wall of the second mounting groove (27) is slidably connected with a mounting pad corresponding to the groove, and the side opening of the mounting pad corresponds to the positioning hole (15).

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