Bending and welding structure of frame

By adopting a bent welding structure in the aluminum profile frame, the hollow support pipe of the integrated structure automatically forms a suitable welding spacing after bending, the problems of low molding efficiency and high operation difficulty of aluminum profile frame are solved, and production efficiency is achieved Improve and simplify operations.

CN222285056UActive Publication Date: 2025-01-03ZHEJIANG ONETIME LEISURE PROD CO LTD
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Patent Information

Application Number
CN202421192547.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-03
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

During the processing of outdoor folding tables and chairs, the forming efficiency of the aluminum profile frame is low and the production operation is difficult. Especially when connecting two aluminum profiles into L-shaped, the ends need to be cut off, the alignment is aligned and the welding is fixed with special fixtures. Leading to cumbersome operating steps.

Method used

A bending welded structure is adopted, including a first support tube and a second support tube of a hollow structure. The fourth connecting edges of the two are integrated, and can have a specific angle in a straight state and after bending. Close to each other, forming a spacing suitable for welding, eliminating the steps of end alignment and special fixing of fixtures.

Benefits of technology

Through direct welding after bending, production efficiency is significantly improved, production difficulty is reduced, and operation process is simplified.

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Abstract

The utility model discloses a bending welding structure of a frame, which comprises a first supporting pipe and a second supporting pipe which are of hollow structures, the first supporting pipe and the second supporting pipe respectively comprise a first connecting edge, a second connecting edge, a third connecting edge and a fourth connecting edge, and the fourth connecting edges of the first supporting pipe and the second supporting pipe are of an integrated structure; the first supporting pipe and the second supporting pipe have a straight state and a bent state, in the straight state, an included angle of 30-120 degrees is formed between the first connecting edges of the first supporting pipe and the second supporting pipe, and the fourth connecting edge is straight. After the first connecting edge, the second connecting edge and the third connecting edge are converted from the straight state to the bent state, the first connecting edge, the second connecting edge and the third connecting edge of the first connecting edge and the second connecting edge are close to each other and are spaced by 1-2mm, and the fourth connecting edge is bent; and a welding structure is arranged to fill the space.
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Description

Technical Field

[0001] The present application relates to the technical field of folding chair frames, and in particular to a bending and welding structure of a frame. Background Art

[0002] In the processing of outdoor folding tables and chairs, in order to achieve lightweight, a frame made of aluminum profiles is often used. The frame is connected by welding two aluminum profiles. In the actual processing process, for example, when two aluminum profiles need to be connected into an L shape, the ends of the aluminum profiles are generally cut off at an angle, the two cut aluminum profiles are aligned, and fixed with a special fixture, and then welded to form.

[0003] How to improve the molding efficiency of the frame and reduce the difficulty of production operation is the purpose of this application. Summary of the invention

[0004] Based on this, the present application provides a bending and welding structure of a frame to solve the problem.

[0005] The technical solution adopted by the present application to solve the technical problem is: a bending welding structure of a frame, comprising a first supporting tube and a second supporting tube of a hollow structure, wherein the first supporting tube and the second supporting tube both comprise a first connecting edge, a second connecting edge, a third connecting edge and a fourth connecting edge, wherein the fourth connecting edges of the two are an integrated structure;

[0006] The first support tube and the second support tube have a straight state and a bent state:

[0007] In the straight state, the first connecting edges of the two have an angle of 30-120°, and the fourth connecting edge is straight;

[0008] After transforming from a straight state to a bent state, the first connecting edges, the second connecting edges, and the third connecting edges are close to each other with a spacing of 1-2 mm, and the fourth connecting edge is bent; and a welding structure fills the spacing.

[0009] In some embodiments, in a straight state, the first connecting edges of the two have an angle of 90°, and the fourth connecting edge is straight.

[0010] In some embodiments, in the bent state, the angle between the first support tube and the second support tube is 90°.

[0011] In some embodiments, in the bent state, the value of the spacing is 0.5-1 mm.

[0012] In some embodiments, the thickness of the fourth connecting edge is 0.5-2.5 mm.

[0013] In some embodiments, the thickness of the fourth connecting edge is 1 mm.

[0014] In some embodiments, there are two first support tubes, which are arranged at both ends of the second support tube. When in the bent state, the two first support tubes are substantially parallel to each other, and the two first support tubes are substantially perpendicular to the second support tube, presenting an overall approximate "匚" shape.

[0015] In some embodiments, the materials of the first support tube and the second support tube are aluminum.

[0016] The beneficial effects of this application are as follows: During production, the fourth connecting edges of the two support tubes are of an integral structure. After simply bending the two support tubes, welding can be carried out, eliminating the operation steps such as end alignment and fixing with special jigs in the original process, greatly improving the production efficiency and reducing the production difficulty. Description of the Drawings

[0017] The following further illustrates this application in conjunction with the drawings and embodiments.

[0018] Figure 1 is a schematic diagram of the flat state of this application.

[0019] Figure 2 is a cross-sectional view of the first support tube and the second support tube of this application.

[0020] Figure 3 is a schematic diagram of the bent state of this application.

[0021] Figure 4 is a schematic diagram of the structure of another embodiment of this application.

[0022] Reference numerals: 1. First support tube, 2. First support tube, 3. First connecting edge, 4. Second connecting edge, 5. Third connecting edge, 6. Fourth connecting edge. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of the technical solutions appears to be mutually contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of this application.

[0024] Refer to Figure 1-4As shown, the present application proposes a bending and welding structure of a framework, including a first support pipe 12 and a second support pipe with a hollow structure. Both the first support pipe 12 and the second support pipe include a first connecting edge 3, a second connecting edge 4, a third connecting edge 5, and a fourth connecting edge 6. Among them, the fourth connecting edges 6 of the two are an integral structure;

[0025] The first support pipe 12 and the second support pipe have a straight state and a bent state:

[0026] In the straight state, the first connecting edges 3 of the two have an included angle of 30 - 120°, and the fourth connecting edge 6 is straight;

[0027] After being transformed from the straight state to the bent state, the first connecting edges 3 of the two, the second connecting edges 4 of the two, and the third connecting edges 5 of the two are close to each other in pairs and have a spacing of 0 - 2 mm. The fourth connecting edge 6 is bent; and a welding structure fills the spacing.

[0028] Furthermore, in the straight state, the first connecting edges 3 of the two have an included angle of 90°, and the fourth connecting edge 6 is straight.

[0029] Furthermore, in the bent state, the included angle between the first support pipe 12 and the second support pipe is 90°, and the structure exhibits a specific geometric arrangement.

[0030] Furthermore, in the bent state, the value of the spacing is 0.5 - 1 mm. Such a setting is suitable for welding treatment.

[0031] Furthermore, the thickness of the fourth connecting edge 6 is 0.5 - 2.5 mm. Preferably, the thickness of the fourth connecting edge 6 is 1 mm. Such a setting makes it easy to bend the fourth connecting edge 6.

[0032] In addition, referring to Figure 4 As shown, there are two first support pipes 12, which are arranged at both ends of the second support pipe. When in the bent state, the two first support pipes 12 are substantially parallel to each other, and the two first support pipes 12 and the second support pipe are substantially perpendicular to each other, presenting an overall approximate "匚" shape.

[0033] Preferably, the materials of the first support pipe 12 and the second support pipe are aluminum because of its light weight and high strength.

[0034] It should be emphasized that the above embodiments detail the core concept of the present application and do not cover all technical details to avoid obscuring the innovative points. Those skilled in the art can flexibly adjust the technical solutions according to the provided information, such as making appropriate changes to specific dimensions, materials, or structures, as long as they do not deviate from the basic principles and spirit of the present application.

Claims

1. A bending welding structure of a frame, characterized in that: It includes a first support tube and a second support tube with a hollow structure. Both the first support tube and the second support tube include a first connecting edge, a second connecting edge, a third connecting edge, and a fourth connecting edge. Among them, the fourth connecting edges of the two are an integral structure; The first support tube and the second support tube have a straight state and a bent state: In the straight state, the first connecting edges of the two have an included angle of 30 - 120°, and the fourth connecting edge is straight; After being transformed from the straight state to the bent state, the first connecting edges of the two, the second connecting edges of the two, and the third connecting edges of the two are close to each other pairwise and have a spacing of 0 - 2 mm. The fourth connecting edge is bent; and there is a welding structure to fill the spacing.

2. A bending welding structure of a frame according to claim 1, characterized in that: In the straight state, the first connecting edges of the two have an included angle of 90°, and the fourth connecting edge is straight.

3. The bending welding structure of a frame according to claim 1, characterized in that: In the bent state, the included angle between the first support tube and the second support tube is 90°.

4. The bending welding structure of a frame according to claim 1, characterized in that: In the bent state, the value of the spacing is 0.5 - 1 mm.

5. The bending welding structure of a frame according to claim 1, characterized in that: The thickness of the fourth connecting edge is 0.5 - 2.5 mm.

6. The bending welding structure of a frame according to claim 5, characterized in that: The thickness of the fourth connecting edge is 1 mm.

7. The bending welding structure of a frame according to claim 1, characterized in that: There are two first support tubes, which are arranged at both ends of the second support tube. When in the bent state, the two first support tubes are substantially parallel to each other, and the two first support tubes and the second support tube are substantially perpendicular to each other, presenting an overall approximate "匚" shape.

8. The bending welding structure of a frame according to claim 1, characterized in that: The materials of the first support tube and the second support tube are aluminum.