Lightweight high-strength aluminum alloy profile

Abstract

The utility model relates to the technical field of section bars, in particular to a light-weight high-strength aluminum alloy section bar which comprises a middle cavity and side cavities which are arranged on the two sides of the middle cavity and are equal to the middle cavity in height, and the middle cavity comprises an upper surface layer, a triangular folded plate layer and a lower surface layer which are sequentially arranged from top to bottom. A perforated plate layer is arranged between the triangular folded plate layer and each of the upper surface layer and the lower surface layer, a connecting partition plate is arranged between the triangular folded plate layer and each perforated plate layer, the surface, making contact with the middle cavity, of the side cavity is the inner side face of the side cavity, and nut clamping grooves are formed in the upper face, the lower face and the outer side face of the side cavity. Screw holes are formed in the front side face and the rear side face of the side cavity. According to the utility model, a multi-cavity design is adopted to realize light weight, the structural strength is high, and bending is not easy. The whole body is flat and is suitable for building a frame with more planes; due to the combined design of the porous plate layer and the triangular folded plate layer, few materials are used, the compression strength is high, and in addition, the sound insulation and heat insulation performance is excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of profiles, and in particular to a lightweight and high-strength aluminum alloy profile. Background Art

[0002] Aluminum alloy profiles have the advantages of light weight, high strength, corrosion resistance, and easy processing, and have been widely used in aerospace, automobile, construction, shipbuilding and other fields. Lightweight aluminum profiles help reduce the overall weight of the structure, reduce resource consumption and environmental pollution, and are of great significance for achieving green manufacturing and promoting sustainable development. The development of a lighter and higher strength aluminum alloy profile has important practical application value and market prospects. Utility Model Content

[0003] The utility model aims to provide a lightweight and high-strength aluminum alloy profile, which adopts a multi-hole design to achieve lightweight, and at the same time has high structural strength and is not easy to be bent.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A lightweight high-strength aluminum alloy profile, comprising a middle cavity and side cavities of the same height on both sides thereof, the middle cavity comprising an upper surface layer, a triangular folded plate layer and a lower surface layer arranged in sequence from top to bottom, a porous plate layer is respectively arranged between the triangular folded plate layer and the upper surface layer and the lower surface layer, a connecting partition is arranged between the triangular folded plate layer and the porous plate layer, the surface of the side cavity in contact with the middle cavity is the inner side surface of the side cavity, the upper and lower surfaces and the outer side surface of the side cavity are provided with nut slots, and the front and rear side surfaces of the side cavity are provided with screw holes.

[0006] Furthermore, the thickness of the porous plate layer is greater than that of the upper surface layer and the lower surface layer, the thickness of the triangular folded plate layer is greater than that of the porous plate layer, and the porous plate layer is provided with a plurality of evenly arranged upper and lower through holes, and the cross-sectional shape of the upper and lower through holes is triangular, circular or hexagonal.

[0007] Furthermore, the cross-sectional folding angle α of the triangular folded plate layer is 45° to 60°, and a triangular prism-shaped passage is formed between the triangular folded plate layer and the connecting partition.

[0008] Furthermore, a reinforcing rib plate is vertically arranged on the surface of the connecting partition plate facing the triangular folded plate layer, and the reinforcing rib plate is not in contact with the triangular folded plate layer.

[0009] Furthermore, the upper and lower edges of the outer side surface of the side cavity are provided with arc chamfers.

[0010] Furthermore, the inner periphery of the screw hole is provided with an internal thread.

[0011] Furthermore, the wall thickness of the upper surface layer and the lower surface layer ranges from 1.5 mm to 4.5 mm.

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

[0013] The utility model adopts a multi-hole design to achieve lightweight, high structural strength and is not easy to be bent. The overall shape is flat, suitable for building frames with more planes; the combination design of the porous plate layer and the triangular folded plate layer achieves less material and high compressive strength, and also has excellent sound insulation and heat insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the AA section;

[0016] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the porous plate layer in the utility model.

[0018] In the figure: 1, medium cavity; 101, upper surface layer; 102, triangular folded plate layer; 103, lower surface layer; 104, porous plate layer; 105, connecting partition; 2, side cavity; 201, nut slot; 202, screw hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1 to Figure 4As shown, a lightweight high-strength aluminum alloy profile comprises a medium cavity 1 and side cavities 2 of the same height on both sides thereof, which are made of the same material and are flat as a whole; the medium cavity 1 adopts a multi-layer overlapping design, comprising an upper surface layer 101, a triangular folded plate layer 102 and a lower surface layer 103 arranged in sequence from top to bottom, a porous plate layer 104 is arranged between the triangular folded plate layer 102 and the upper surface layer 101 and the lower surface layer 103 respectively, a connecting partition 105 is arranged between the triangular folded plate layer 102 and the porous plate layer 104, the surface where the side cavity 2 contacts the medium cavity 1 is the inner side surface of the side cavity 2, and the upper and lower surfaces and the outer side surface of the side cavity 2 are provided with nut slots 201, The T-nut belongs to the post-mounted nut series and can be conveniently fixed in the nut slot 201 of the aluminum alloy profile without pre-embedding. During the assembly process, the T-nut can automatically position and lock, and the assembly can be completed without the aid of other tools, which makes the installation process time-saving and labor-saving. At the same time, since the T-nut is placed in the profile for fixation after the frame structure is completed, subsequent modifications are also relatively convenient; screw holes 202 are provided on the front and rear sides of the side cavity 2, and the inner periphery of the screw hole 202 is provided with an internal thread, which is convenient for screwing in the screws to connect and fix them.

[0021] Specifically, the wall thickness of the upper surface layer 101 and the lower surface layer 103 ranges from 1.5 mm to 4.5 mm, the thickness of the porous plate layer 104 is greater than that of the upper surface layer 101 and the lower surface layer 103, the thickness of the triangular folded plate layer 102 is greater than that of the porous plate layer 104, and the porous plate layer 104 is provided with a number of evenly arranged upper and lower through holes, and the cross-sectional shapes of the upper and lower through holes are triangular, circular or hexagonal. The porous structure design enables the plate layer to maintain a high strength while greatly reducing its own weight, which has significant advantages in the fields requiring lightweight and high-strength applications. In addition, the multi-hole structure brought by the porosity can also effectively block the propagation of sound waves and heat, so it has excellent sound insulation and heat insulation properties.

[0022] The cross-sectional angle α of the triangular folded plate layer 102 is 45° to 60°, and a triangular prism-shaped space is formed between the triangular folded plate layer 102 and the connecting partition 105. The stability of the triangle is due to the stable structure formed by the three sides supporting each other. By utilizing this characteristic, the triangular folded plate layer 102 can use less material and have high compressive strength.

[0023] In order to improve the strength of the connecting partition 105 , a reinforcing rib plate is vertically arranged on the surface of the connecting partition 105 facing the triangular folded plate layer 102 , and the reinforcing rib plate is not in contact with the triangular folded plate layer 102 .

[0024] In addition, the upper and lower edges of the outer side surface of the side cavity 2 are provided with arc chamfers. The arc angle treatment method can make the edge of the profile smoother, more comfortable for human touch, not easy to be knocked or scratched, and reduce the safety hazards caused by sharp corners.

[0025] The utility model adopts a multi-hole design to achieve light weight, high structural strength and is not easy to be bent. The overall shape is flat, suitable for building frames with more planes; the combination design of the porous plate layer 104 and the triangular folded plate layer 102 achieves less material and high compressive strength, and also has excellent sound insulation and heat insulation performance

[0026] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. It should be pointed out that for those skilled in the art, relevant changes, modifications or additions without departing from the concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A lightweight high-strength aluminum alloy profile, characterized in that: The invention comprises a medium cavity (1) and side cavities (2) of the same height on both sides thereof, wherein the medium cavity (1) comprises an upper surface layer (101), a triangular folded plate layer (102) and a lower surface layer (103) which are arranged in sequence from top to bottom, a porous plate layer (104) is arranged between the triangular folded plate layer (102) and the upper surface layer (101) and the lower surface layer (103), respectively, a connecting partition (105) is arranged between the triangular folded plate layer (102) and the porous plate layer (104), the surface of the side cavity (2) in contact with the medium cavity (1) is the inner side surface of the side cavity (2), the upper and lower surfaces and the outer side surface of the side cavity (2) are provided with nut slots (201), and the front and rear side surfaces of the side cavity (2) are provided with screw holes (202).

2. The lightweight high-strength aluminum alloy profile according to claim 1, characterized in that: The thickness of the porous plate layer (104) is greater than that of the upper surface layer (101) and the lower surface layer (103); the thickness of the triangular folded plate layer (102) is greater than that of the porous plate layer (104); the porous plate layer (104) is provided with a plurality of evenly arranged upper and lower through holes; the cross-sectional shape of the upper and lower through holes is triangular, circular or hexagonal.

3. The lightweight high-strength aluminum alloy profile according to claim 2, characterized in that: The cross-sectional folding angle α of the triangular folded plate layer (102) is 45° to 60°, and a triangular prism-shaped empty passage is formed between the triangular folded plate layer (102) and the connecting partition (105).

4. The lightweight high-strength aluminum alloy profile according to claim 3, characterized in that: A reinforcing rib plate is vertically arranged on the surface of the connecting partition plate (105) facing the triangular folded plate layer (102), and the reinforcing rib plate is not in contact with the triangular folded plate layer (102).

5. The lightweight high-strength aluminum alloy profile according to claim 1, characterized in that: The upper and lower edges of the outer side surface of the side cavity (2) are provided with arc chamfers.

6. The lightweight high-strength aluminum alloy profile according to claim 1, characterized in that: The inner periphery of the screw hole (202) is provided with an internal thread.

7. The lightweight high-strength aluminum alloy profile according to claim 1, characterized in that: The wall thickness of the upper surface layer (101) and the lower surface layer (103) ranges from 1.5 mm to 4.5 mm.

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