Composite aluminum profile

Abstract

The utility model relates to the field of aluminum profiles, in particular to a composite aluminum profile which comprises an aluminum profile body, a positioning edge strip and a composite edge strip are fixedly arranged on at least one side of the aluminum profile body, and an inward-concave notch structure is formed among the composite edge strip, the positioning edge strip and the aluminum profile body. According to the composite aluminum profile, the locking protrusions are arranged on the sides, close to the positioning edgings, of the composite edgings, the locking protrusions and the clamping strips are in local contact and clamping connection, and therefore the composite edgings can be clamped, and the service life of the aluminum profile can be prolonged. By means of the structure, the contact position of the clamping strip and the locking protrusion can be designed into a hard and rough structure in a targeted mode, the clamping force between the clamping strip and the locking protrusion is greatly improved, the tensile resistance and the shearing resistance of a finished product can be well improved, and due to local contact, stress points are concentrated at one position, and stable extrusion clamping connection can be formed.

Description

Technical Field

[0001] The utility model relates to the field of aluminum profiles, in particular to a composite aluminum profile. Background Art

[0002] At present, when using door and window profiles on the market, two plastic profiles are inserted between two aluminum profiles. After the insertion, a connection needs to be established between the aluminum profile and the plastic profile. The stability of the connection determines the formation of the tensile and shear resistance of the structure after installation.

[0003] For example, the Chinese patent application: An O-shaped single-strip thermal insulation aluminum profile, publication number: CN201771358U, discloses the connection between the aluminum profile and the plastic profile, but the connection method of this patent is mainly to wrap the plastic profile with the aluminum profile. This connection method has high requirements on the degree of fit after pressing, but due to the full fitting method, the force points are dispersed and numerous, and it is difficult to form a stable extrusion connection locally. When used later, the tensile and shear resistance performance is poor. Summary of the invention

[0004] The utility model aims to provide a composite aluminum profile.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A composite aluminum profile is provided, comprising an aluminum profile body, at least one side of the aluminum profile body being fixedly provided with a positioning edge strip and a composite edge strip, an inwardly recessed notch structure being formed between the composite edge strip, the positioning edge strip and the aluminum profile body, the connection between the composite edge strip and the aluminum profile body being a bendable structure, and a locking protrusion being provided on one side of the composite edge strip close to the positioning edge strip.

[0007] Furthermore, an arc-shaped recessed hole is provided at the junction between the composite edge strip and the aluminum profile body.

[0008] Furthermore, the composite edge strip includes a vertical portion and a curved portion, the locking protrusion is located on the curved portion, and the curved portion is bent along the vertical direction of the vertical portion toward a side away from the positioning edge strip.

[0009] Furthermore, the thickness of the vertical portion is smaller than the thickness of the curved portion.

[0010] Furthermore, the top of one side of the composite side strip close to the positioning side strip is a sloped structure.

[0011] Furthermore, two positioning side strips and a composite side strip are fixedly provided on at least one side of the aluminum profile body, and the two positioning side strips and the composite side strip are symmetrically arranged along the central cross section of the aluminum profile body.

[0012] The beneficial effects of the utility model are as follows: the composite aluminum profile adopts a method of local contact and connection between the locking protrusion and the clamping strip, so that the contact position between the clamping strip and the locking protrusion can be specifically designed to be a hard and rough structure, so that the clamping force between the two is greatly improved, that is, the tensile strength and shear resistance of the finished product can be greatly improved, and due to the local contact, the force points are concentrated in one place, that is, a stable extrusion clamping can be formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model.

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

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 for Figure 1 A local enlarged view of point A;

[0017] In the figure: 1, aluminum profile body; 2, positioning edge strip; 3, composite edge strip; 3a, locking protrusion; 3b, vertical part; 3c, curved part; 4, plastic profile; 4a, clamping strip; 5, notch; 6, arc-shaped concave hole. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0019] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0020] Reference Figures 1 to 3A composite aluminum profile shown includes an aluminum profile body 1, at least one side of the aluminum profile body 1 is fixedly provided with a positioning edge strip 2 and a composite edge strip 3, an inwardly recessed notch 5 structure is formed between the composite edge strip 3, the positioning edge strip 2 and the aluminum profile body 1, the connection between the composite edge strip 3 and the aluminum profile body 1 is a bendable structure, and a locking protrusion 3a is provided on the side of the composite edge strip 3 close to the positioning edge strip 2. When the clip strip 4a of the plastic profile 4 is inserted into the notch 5, the composite edge strip 3 is squeezed by an extrusion device so that the composite edge strip 3 is bent toward the positioning edge strip 2, and the locking protrusion 3a can be pressed against the plastic profile 4, so that the plastic profile 4 can be locked. This locking method allows the protrusion to fully contact the hardest and roughest part of the plastic profile 4, making the locking more stable.

[0021] An arc-shaped recessed hole 6 is provided at the joint between the composite side strip 3 and the aluminum profile body 1. By providing such an arc-shaped recessed hole 6, when the composite side strip 3 is bent, there is a margin for its deformation, and the position of the deformation can be controlled, so as to avoid cracks during extrusion, which may cause the composite side strip 3 to break.

[0022] The composite side strip 3 includes a vertical portion 3b and a curved portion 3c, the locking protrusion 3a is located on the curved portion 3c, and the curved portion 3c is bent along the vertical direction of the vertical portion 3b toward a side away from the positioning side strip 2. By setting the composite side strip 3 as a two-end structure, it can be deformed more easily when bending, because the connection of the curved structure is itself the maximum stress point.

[0023] The thickness of the vertical portion 3b is smaller than that of the curved portion 3c, so that the deformation position can be controlled at the vertical portion 3b, while the curved portion 3c will not be deformed.

[0024] The top of the composite side strip 3 near the positioning side strip 2 is a sloped structure. Through this sloped structure, the composite side strip 3 is not easy to touch the plastic profile 4 when rotating, making the connection structure of the plastic profile 4 and the clamping strip 4a more stable.

[0025] Two positioning side strips 2 and a composite side strip 3 are fixedly arranged on at least one side of the aluminum profile body 1, and the two positioning side strips 2 and the composite side strip 3 are symmetrically arranged along the central cross section of the aluminum profile body 1. By arranging two positioning side strips 2 and the composite side strip 3, the aluminum profile body 1 can be combined with two plastic profiles 4 at the same time, thereby increasing the stability of the structure after clamping.

[0026] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A composite aluminum profile, characterized in that: The invention comprises an aluminum profile body (1), wherein at least one side of the aluminum profile body (1) is fixedly provided with a positioning edge strip (2) and a composite edge strip (3), an inwardly recessed notch (5) structure is formed between the composite edge strip (3), the positioning edge strip (2) and the aluminum profile body (1), the connection between the composite edge strip (3) and the aluminum profile body (1) is a bendable structure, and a locking protrusion (3a) is provided on one side of the composite edge strip (3) close to the positioning edge strip (2).

2. A composite aluminum profile according to claim 1, characterized in that: An arc-shaped recessed hole (6) is provided at the junction between the composite side strip (3) and the aluminum profile body (1).

3. A composite aluminum profile according to claim 2, characterized in that: The composite edge strip (3) comprises a vertical portion (3b) and a bent portion (3c), the locking protrusion (3a) is located on the bent portion (3c), and the bent portion (3c) is bent along the vertical direction of the vertical portion (3b) towards a side away from the positioning edge strip (2).

4. A composite aluminum profile according to claim 3, characterized in that: The thickness of the vertical portion (3b) is smaller than the thickness of the curved portion (3c).

5. The composite aluminum profile according to claim 1, characterized in that: The top of one side of the composite side strip (3) close to the positioning side strip (2) is a sloped structure.

6. The composite aluminum profile according to claim 1, characterized in that: Two positioning side strips (2) and a composite side strip (3) are fixedly arranged on at least one side of the aluminum profile body (1); the two positioning side strips (2) and the composite side strip (3) are symmetrically arranged along the central cross section of the aluminum profile body (1).

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