A carbon fiber wrapped aluminum profile

Abstract

The utility model relates to a kind of carbon fiber wrapped aluminium profile, including aluminium profile body and carbon fiber layer wrapped in the outer surface of aluminium profile body;Aluminium profile body includes cylindrical ring main body and is set to the polygonal pipe of multiple side edges surrounded by the periphery of cylindrical ring main body, at least two oppositely arranged corners of polygonal pipe are equipped with chamfered edge, the inner wall between cylindrical ring main body and each side edge is connected by inner reinforcing rib, and the outer wall of at least two adjacent side edges of polygonal pipe and at least one chamfered edge outer wall is equipped with the outer reinforcing rib of outward extension;Cylindrical ring main body end inner wall is equipped with internal thread;Carbon fiber layer is wrapped in the outer wall surface of the side edge of polygonal pipe, chamfered edge and outer reinforcing rib;The aluminium profile is multi-chamber structure, significantly reduce the weight of material matrix, combine carbon fiber wrapping under the premise of guaranteeing overall mechanical property, overall quality is further lightened, and the corrosion resistance of profile is simultaneously improved.

Description

Technical Field

[0001] This utility model relates to a carbon fiber-coated aluminum profile, and relates to the field of profile technology. Background Technology

[0002] Aluminum profiles are aluminum materials with different cross-sectional shapes, made from aluminum alloy materials through hot melting and extrusion processes. When used, they have high requirements for strength and corrosion resistance. If traditional aluminum profiles are to have high strength, it is necessary to increase the thickness of the profile or increase the amount of material used, which will result in problems such as heavy weight and low material utilization. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a lightweight and corrosion-resistant carbon fiber-coated aluminum profile.

[0004] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a carbon fiber-coated aluminum profile, comprising an aluminum profile body and a carbon fiber layer wrapped around the outer surface of the aluminum profile body; the aluminum profile body includes a cylindrical ring body and a polygonal tube disposed around the cylindrical ring body and surrounded by multiple sides, wherein at least two opposite corners of the polygonal tube are provided with chamfered edges, the cylindrical ring body is connected to the inner wall of each side by an inner reinforcing rib, and the outer walls of at least two adjacent sides of the polygonal tube and the outer wall of at least one chamfered edge are provided with outwardly extending outer reinforcing ribs; the inner wall of the end of the cylindrical ring body is provided with an internal thread; the carbon fiber layer wraps around the sides, chamfered edges and outer wall surfaces of the outer reinforcing ribs of the polygonal tube.

[0005] A further design of the above technical solution is as follows: the polygonal tube is a square tube surrounded by four sides. The two opposite corners of the square tube are provided with chamfered edges. The outer walls of the two sides adjacent to a chamfered edge are provided with outwardly extending reinforcing ribs. The outer walls of the chamfered edge opposite to the chamfered edge are provided with external reinforcing ribs.

[0006] The length of the chamfered edge with external reinforcing ribs is longer than that of the other chamfered edge.

[0007] The inner wall of the chamfered edge with external reinforcing ribs has inwardly extending internal reinforcing ribs.

[0008] The width of the outer reinforcing ribs on the outer wall of the square tube gradually decreases from one end to the middle.

[0009] The carbon fiber-wrapped aluminum profile also includes a crossbar. The outer walls of the square tube and the two sides adjacent to the chamfered edge with external reinforcing ribs are provided with outwardly extending side ears. The side ears are provided with connecting holes. The crossbar is hollow. The end of the crossbar can be fitted onto the side ears and is provided with mounting holes corresponding to the connecting holes. The crossbar is fixed to the square tube by bolts passing through the mounting holes and connecting holes.

[0010] The crossbar is wrapped with a carbon fiber layer.

[0011] The four square tubes are connected in pairs by crossbars to form a square aluminum profile frame.

[0012] The carbon fiber-wrapped aluminum profile also includes an end cap, which has a bolt on at least one side that engages with the internal thread of the cylindrical ring body. The end cap is fixed to the end of the aluminum profile body by the engagement of the bolt with the cylindrical ring body, and the area of ​​the end cap is not less than the cross-sectional area of ​​the polygonal tube.

[0013] The end cap is symmetrically provided with bolts on both sides that engage with the internal threads of the cylindrical ring body. The end cap is connected to the cylindrical ring body of the two aluminum profile bodies respectively by bolts.

[0014] The beneficial effects of this invention are as follows: In this utility model, the aluminum profile body adopts a cylindrical ring body and a polygonal tube set around the cylindrical ring body. The inner walls of each side of the cylindrical ring body and the polygonal tube are connected by internal reinforcing ribs, thereby forming a multi-chamber structure, which significantly reduces the weight of the material matrix. Combined with carbon fiber wrapping, the overall weight is further reduced while ensuring the overall mechanical properties.

[0015] This invention uses a carbon fiber layer wrapped around the outside of the profile, which increases the strength and improves the corrosion resistance of the profile.

[0016] This invention features external reinforcing ribs on the outside of the polygonal tube, which increases the strength of the profile and also increases the surface area of ​​the polygonal tube, thereby increasing the area covered by the carbon fiber layer and further improving the strength of the profile. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of the installation of the aluminum profile in Example 2; Figure 4 This is a schematic diagram of the end cap in Embodiment 3. Figure 1 ; Figure 5 This is a schematic diagram of the end cap in Embodiment 3. Figure 2 ; In the figure, 11-cylindrical ring body, 12-polygonal tube, 13-first chamfered outer wall, 14-second chamfered outer wall, 15-inner reinforcing rib, 16-outer reinforcing rib, 17-carbon fiber layer, 18-side ear, 2-crossbar. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1

[0019] like Figure 1 As shown, the carbon fiber-wrapped aluminum profile of this embodiment includes an aluminum profile body and a multi-layer carbon fiber layer 17 wrapped around the outer surface of the aluminum profile body. The aluminum profile body includes a cylindrical ring body 11 and a polygonal tube 12 disposed around the cylindrical ring body 11 and surrounded by multiple sides. At least two opposite corners of the polygonal tube 12 are provided with chamfered edges 13. The inner walls of each side of the cylindrical ring body 11 and the polygonal tube 12 are connected by inner reinforcing ribs 15 to form a multi-chamber structure, thereby reducing the weight of the aluminum profile. The outer walls of at least two adjacent sides of the polygonal tube 12 and the outer wall of at least one chamfered edge 13 are provided with outwardly extending outer reinforcing ribs 16 to increase the strength of the aluminum profile. The carbon fiber layer 17 is wrapped around the sides, chamfered edges and outer walls of the outer reinforcing ribs of the polygonal tube to increase the strength of the aluminum profile structure. At the same time, it improves the corrosion resistance of the outer surface of the aluminum profile by physically isolating it from corrosive media, thereby reducing the overall weight of the profile. The carbon fiber cladding layer adopts a cross-layout process, with the layup direction matching the stress direction of the profile, and is cured by hot pressing.

[0020] In this embodiment, the polygonal tube is set as a square tube surrounded by four sides. The two opposite corners of the square tube are provided with chamfered edges, one long and one short. The outer walls of the two sides adjacent to the short chamfered edge 13 are provided with outwardly extending reinforcing ribs 16. In order to increase the strength of the long chamfered edge 14, an outer reinforcing rib 16 is also provided on the outer wall of the long chamfered edge 14. At the same time, an inwardly extending inner reinforcing rib is also provided on the inner wall of the long chamfered edge.

[0021] In this embodiment, the outer reinforcing rib 16 and the corresponding inner reinforcing rib 15 on the side of the square tube are arranged in the same straight line direction, making the structure more stable.

[0022] In this embodiment, all edges and inner corners of the aluminum profile body structure are rounded to reduce local structural stress.

[0023] In this embodiment, the lengths of the cylindrical ring body 11, the polygonal tube 12, and the inner and outer reinforcing ribs are matched, and an internal thread is provided on the inner wall of the end of the cylindrical ring body, which can be used to install end caps and other structures. Example 2

[0024] like Figure 2As shown, this embodiment is a further design based on embodiment one. Specifically, the aluminum profile also includes a connecting crossbar 2. The outer walls of the two sides adjacent to the square tube and the long chamfered edge 14 with external reinforcing ribs are provided with outwardly extending side ears 18. The side ears 18 are provided with connecting holes. The crossbar 2 is hollow and its end can be fitted onto the side ears 18. The crossbar is provided with mounting holes corresponding to the connecting holes. The crossbar can be fixed to the square tube by bolts passing through the mounting holes and connecting holes.

[0025] like Figure 3 As shown, this embodiment uses four square tubes arranged in a square, and then connected in pairs by crossbars 2 to form a square aluminum profile frame. The crossbars 2 are also wrapped with carbon fiber layers to adapt to more application scenarios.

[0026] The width of the outer reinforcing ribs on the outer wall of the square tube gradually decreases from one end to the middle, making the supporting end of the square tube wider at the bottom and narrower at the top, thus improving the supporting strength. Example 3

[0027] This embodiment is a further design based on Embodiment 1, specifically including an end cap, such as... Figure 4 As shown, one side of the end cap 3 is provided with a bolt that engages with the internal thread of the cylindrical ring body. The end cap 3 is fixed to the end of the aluminum profile body by the engagement of the bolt with the cylindrical ring body, and the area of ​​the end cap 3 matches the cross-sectional area of ​​the polygonal tube.

[0028] like Figure 5 As shown, in this embodiment, bolts that engage with the internal threads of the cylindrical ring body are symmetrically provided on both sides of the end cap 3. The end cap 3 is connected to the cylindrical ring body of the two aluminum profile bodies respectively by bolts, which is used to extend the length of the aluminum profile.

[0029] The technical solutions of this utility model are not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this utility model.

Claims

1. A carbon fiber-clad aluminum profile, characterized in that: The material includes an aluminum profile body and a carbon fiber layer wrapped around the outer surface of the aluminum profile body. The aluminum profile body includes a cylindrical ring body and a polygonal tube surrounded by multiple sides. At least two opposite corners of the polygonal tube are provided with chamfered edges. The cylindrical ring body is connected to the inner wall of each side by an inner reinforcing rib. The outer walls of at least two adjacent sides of the polygonal tube and the outer wall of at least one chamfered edge are provided with outwardly extending outer reinforcing ribs. The inner wall of the end of the cylindrical ring body is provided with an internal thread. The carbon fiber layer wraps around the sides, chamfered edges, and outer wall surfaces of the outer reinforcing ribs of the polygonal tube.

2. The carbon fiber-wrapped aluminum profile according to claim 1, characterized in that: The polygonal tube is a square tube formed by four sides. The two opposite corners of the square tube are provided with chamfered edges. The outer walls of the two sides adjacent to a chamfered edge are provided with outwardly extending reinforcing ribs, and the outer walls of the chamfered edges opposite to the chamfered edge are provided with reinforcing ribs.

3. The carbon fiber-wrapped aluminum profile according to claim 2, characterized in that: The length of the chamfered edge with external reinforcing ribs is longer than that of the other chamfered edge.

4. The carbon fiber-wrapped aluminum profile according to claim 3, characterized in that: The inner wall of the chamfered edge with external reinforcing ribs has inwardly extending internal reinforcing ribs.

5. The carbon fiber-wrapped aluminum profile according to claim 4, characterized in that: The width of the outer reinforcing ribs on the outer wall of the square tube gradually decreases from one end to the middle.

6. The carbon fiber-wrapped aluminum profile according to claim 5, characterized in that: It also includes a crossbar. The outer walls of the two sides of the square tube adjacent to the chamfered edge with external reinforcing ribs are provided with outwardly extending side ears. The side ears are provided with connecting holes. The crossbar is hollow. The end of the crossbar can be fitted onto the side ears and is provided with mounting holes corresponding to the connecting holes. The crossbar is fixed to the square tube by bolts passing through the mounting holes and connecting holes.

7. The carbon fiber-wrapped aluminum profile according to claim 6, characterized in that: The crossbar is wrapped with a carbon fiber layer.

8. The carbon fiber-wrapped aluminum profile according to claim 7, characterized in that: The four square tubes are connected in pairs by crossbars to form a square aluminum profile frame.

9. The carbon fiber-wrapped aluminum profile according to any one of claims 1 to 8, characterized in that: It also includes an end cap, which has a bolt on at least one side that engages with the internal thread of the cylindrical ring body. The end cap is fixed to the end of the aluminum profile body by the engagement of the bolt with the cylindrical ring body, and the area of ​​the end cap is not less than the cross-sectional area of ​​the polygonal tube.

10. The carbon fiber-wrapped aluminum profile according to claim 9, characterized in that: The end cap is symmetrically provided with bolts on both sides that engage with the internal threads of the cylindrical ring body. The end cap is connected to the cylindrical ring body of the two aluminum profile bodies respectively by bolts.

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