A profile and supporting table legs that are easy to bend and weld

Abstract

This utility model belongs to the field of profile technology, specifically relating to a profile and supporting table legs that are easy to bend and weld. The utility model includes an elongated profile component, comprising a first profile body and a second profile body connected to each other; a bending connection portion is disposed at the connection between the first and second profile bodies; the bending connection portion includes a first oblique cut surface on the first profile body, a second oblique cut surface on the second profile body, a first positioning portion disposed at the lower end of the first oblique cut surface, and a second positioning portion disposed at the lower end of the second oblique cut surface. The bending connection portion is provided at the point where the profile needs to be bent. When bending is required, the first profile body is bent downwards until the first oblique cut surface and the second oblique cut surface overlap and abut against each other, forming a tightly contacting interface, thereby achieving rapid and precise bending of the profile and significantly improving the integrity and stability of the bending joint.

Description

Technical Field

[0001] This utility model belongs to the field of bending profile technology, specifically relating to a profile that is easy to bend and weld, and a supporting table leg. Background Technology

[0002] Profiles, as a common structural material, are widely used in various fields such as construction, furniture, machinery and equipment, and display installations. In practical applications, it is often necessary to bend and connect profiles at specific angles to meet different structural functions and spatial layout requirements.

[0003] The existing methods for bending and connecting profiles mainly fall into the following categories: First, assembly using traditional hinges, joints, or specialized connectors. This method requires additional parts, increasing material costs and assembly steps. Furthermore, the strength of the connection often depends on the performance of the connector, potentially leading to insufficient stability and loosening, affecting the overall structural reliability. Second, direct plastic bending of the profile. While this method achieves one-piece molding, it requires high ductility of the profile. Cracks, deformation, or stress concentration can easily occur at the bending point, significantly weakening its strength. It is also difficult to guarantee the precision of the bending angle. Third, angle connections are achieved by cutting followed by welding or riveting. This method is not only complex and can damage the profile surface, affecting aesthetics, but welding also causes thermal deformation, and riveting requires drilling into the profile. Both methods compromise the profile's integrity and reduce its mechanical properties to some extent. Applications such as table legs often use welding or riveting.

[0004] Therefore, there is an urgent need in this field for a special profile bending connection that can achieve fast and precise bending operations without relying on additional connectors, while ensuring that the bending point has extremely high connection strength and structural stability, and maintaining a neat and beautiful appearance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, such as the need for external equipment to assist in bending, complex bending processes, and poor connection performance, and to provide a profile and supporting table leg that can be bent and welded quickly and accurately, ensuring connection strength and structural stability.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] This utility model provides a profile that is easy to bend and weld, comprising:

[0008] An elongated profile component, the elongated profile component comprising a first profile body and a second profile body connected to each other;

[0009] A bending connection is provided at the connection between the first profile body and the second profile body;

[0010] The bending connection includes a first oblique cut surface cut on the first profile body, a second oblique cut surface cut on the second profile body, a first positioning part disposed at the lower end of the first oblique cut surface, and a second positioning part disposed at the lower end of the second oblique cut surface;

[0011] When the profile is bent around the bending connection, the first beveled surface and the second beveled surface overlap and abut against each other to form a tightly contacting interface; the first positioning part and the second positioning part abut against each other for positioning.

[0012] Furthermore, the first positioning part is a "┌" shaped cut surface formed at the lower end of the first profile body, and the second positioning part is a vertical cut surface formed at the lower end of the second profile body.

[0013] Furthermore, when the profile is in a straight state, the angle β between the first beveled surface and the second beveled surface is 90°.

[0014] Furthermore, the first positioning part includes a horizontal abutment surface and a vertical limiting surface; the length of the vertical sectional surface of the second positioning part is the same as the length of the horizontal abutment surface;

[0015] When in a bent state, the horizontal contact surface coincides with and abuts against the vertical cut surface, and the vertical limiting surface abuts against the lower end surface of the second profile body.

[0016] Furthermore, a first semicircular hole is provided on the first beveled surface, and a second semicircular hole is provided on the second beveled surface accordingly; when in a bent state, the first semicircular hole and the second semicircular hole form a complete circular hole.

[0017] This utility model also provides a table support leg, characterized in that it is formed by bending or welding a profile as described above once or multiple times.

[0018] Furthermore, including:

[0019] The first profile body, the second profile body, and the first profile body are connected in sequence;

[0020] Two bending connection parts are respectively provided at the connection between the two first profile bodies and the second profile body, and the two bending connection parts are located on the same side of the second profile body, and the two first profile bodies bend towards the same side of the second profile body.

[0021] Furthermore, the profile, which is easy to bend and weld, is formed by bending it twice.

[0022] Furthermore, the angle between the first and second oblique surfaces in the two bent connecting parts is 90°; the two first profile bodies and one second profile body are bent to form a U-shaped support structure.

[0023] Furthermore, when in the form of a table leg structure, the first positioning part is welded and fixed at the contact point between the lower end face of the corresponding second profile body.

[0024] The beneficial effects of this utility model of a profile that is easy to bend and weld, and a supporting table leg, are:

[0025] This invention features a bending connection at the point where the profile needs to be broken. Specifically, a first oblique cut is made on the first profile body, and a second oblique cut is made on the second profile body to match the first oblique cut. When bending is required, the first profile body is bent downwards until the first and second oblique cuts overlap and abut against each other, forming a tightly fitting interface. This enables rapid and precise bending of the profile. By setting mutually oblique first and second oblique cuts, the adjacent oblique surfaces on the two profile bodies completely overlap and abut after bending, forming a large-area tightly fitting interface. This effectively avoids the loosening and wobbling problems present in traditional hinges or simple bending, significantly improving the integrity and stability of the bending joint, making the final profile structure more robust and reliable, structurally stable, and with high connection strength.

[0026] Meanwhile, the first positioning part adopts a unique "┌" shaped cut surface, and the second positioning part adopts a vertical cut surface design, which plays a wonderfully complementary positioning and limiting role during the bending process. When the first and second oblique cut surfaces completely overlap, the horizontal contact surface of the "┌" shaped cut surface and the vertical cut surface, and the vertical limiting surface and the lower end surface of the second profile body also abut simultaneously, clearly indicating that the bending is in place. This eliminates the need for secondary calibration using complex tooling fixtures, greatly simplifying the operation steps, reducing the technical requirements for operators, and improving production efficiency, making it particularly suitable for rapid on-site assembly. The structure described in this utility model can be formed in one step through cutting during the profile production stage, without the need for additional casting, forging, or installation of special connecting parts (such as hinges, shafts, etc.), reducing the number of parts and assembly steps, simplifying the production process, effectively reducing raw material consumption, mold development costs, and assembly time, and exhibiting excellent economic efficiency.

[0027] The table legs of this utility model are designed so that after the two side legs are bent relative to the middle second profile body, the bent parts of the profiles are matched by precisely cut surface contact. They only need to be welded and fixed at the abutment of the first positioning part and the corresponding lower end face of the second profile body. The welding area is small, avoiding weld scars or protrusions caused by riveting or bolting, making the table legs look smoother, cleaner and more beautiful, and improving the texture of the table legs. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a perspective view of the profile in Embodiment 1 of this utility model.

[0030] Figure 2 This is a detailed view of the bent connection part in Embodiment 1 of this utility model.

[0031] Figure 3 This is a front view of the profile in Embodiment 1 of this utility model.

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 This is a diagram showing the bending state of the profile in Embodiment 1 of this utility model.

[0034] Figure 6 A perspective view of the profile in Embodiment 2 of this utility model.

[0035] Figure 7 This is a detailed view of the bent connection part in Embodiment 2 of this utility model.

[0036] Figure 8 This is a front view of the profile in Embodiment 2 of this utility model.

[0037] Figure 9 yes Figure 8 Enlarged view of point B in the middle.

[0038] Figure 10 This is a diagram showing the bending state of the profile in Embodiment 2 of this utility model.

[0039] Figure 11 This is a first-view perspective perspective view of the profile supporting the table legs in Embodiment 3 of this utility model.

[0040] Figure 12 This is a second-view perspective perspective view of the profile supporting the table legs in Embodiment 3 of this utility model.

[0041] Figure 13 This is a schematic diagram of the structure of the table legs bent into support in Embodiment 3 of this utility model.

[0042] In the figure: 1. First profile body, 2. Second profile body, 3 / 3-1 / 3-2. Bending connection part, 31. First oblique surface, 32. Second oblique surface, 33. First positioning part, 331. Horizontal abutment surface, 332. Vertical limiting surface, 34. Second positioning part, 35. First semi-circular hole, 36. Second semi-circular hole. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0044] Example 1

[0045] like Figures 1-5 The present invention provides a specific embodiment of a profile for easy bending and welding, comprising an elongated profile and a bending connection portion 3-1. The elongated profile includes a first profile body 1 and a second profile body 2 connected to each other. The bending connection portion 3-1 is disposed at the connection between the first profile body 1 and the second profile body 2. The bending connection portion 3-1 includes a first oblique cut surface 31 cut on the first profile body 1, a second oblique cut surface 32 cut on the second profile body 2, a first positioning portion 33 disposed at the lower end of the first oblique cut surface 31, and a second positioning portion 34 disposed at the lower end of the second oblique cut surface 32. When the profile is bent around the bending connection portion 3-1, the first oblique cut surface 31 and the second oblique cut surface 32 overlap and abut against each other, forming a tightly contacting interface; the first positioning portion 33 and the second positioning portion 34 abut against each other for positioning.

[0046] In this embodiment, a bending connection part 3-1 is provided at the point where the profile needs to be broken. Specifically, a first oblique cut surface 31 is cut obliquely on the first profile body 1, and a second oblique cut surface 32 that mates with the first oblique cut surface 31 is cut on the second profile body 2. When bending is required, the first profile body 1 is bent downwards until the first oblique cut surface 31 and the second oblique cut surface 32 overlap and abut against each other, forming a tightly contacting interface, thereby achieving rapid bending of the profile. By setting the mutually obliquely mating first oblique cut surface 31 and second oblique cut surface 32, as... Figure 5 As shown, after bending, the adjacent inclined surfaces on the two profile bodies completely overlap and abut, forming a large-area tight fit interface. This effectively avoids the loosening and shaking problems existing in traditional hinges or simple bending, significantly improving the integrity, stability and shear resistance of the bending node, making the final profile structure more robust and reliable, with stable structure and high connection strength.

[0047] like Figure 4 As shown, in this embodiment, when the profile is in a straight state, the angle β between the first oblique surface 31 and the second oblique surface 32 is 90°. When the angle between the two oblique surfaces is 90°, after bending, the bending angle of the two profile bodies is 90°. It should be understood that when other bending angles are required, it is only necessary to set the angle between the first oblique surface and the second oblique surface. Here, the angle between the first oblique surface and the second oblique surface is not absolutely limited.

[0048] To further explain, such as Figure 2 and Figure 4As shown, in this embodiment, the first positioning part 33 is a "┌" shaped cut surface formed at the lower end of the first profile body 1, and the second positioning part 34 is a vertical cut surface formed at the lower end of the second profile body 2. The first positioning part 33 includes a horizontal abutment surface 331 and a vertical limiting surface 332; the length of the vertical cut surface of the second positioning part 34 is the same as the length of the horizontal abutment surface 331. When in a bent state, the horizontal abutment surface 331 coincides with the vertical cut surface and abuts, and the vertical limiting surface 332 abuts with the lower end surface of the second profile body 2.

[0049] In this embodiment, the first positioning part 33 adopts a unique "┌" shaped cut surface, and the second positioning part 34 adopts a vertical cut surface design, which plays a wonderfully coordinated positioning and limiting role during the bending process. When the first oblique cut surface 31 and the second oblique cut surface 32 completely overlap, the horizontal contact surface 331 of the "┌" shaped cut surface and the vertical cut surface, and the vertical limiting surface 332 and the lower end surface of the second profile body 2 also abut simultaneously, clearly indicating that the bending is in place. There is no need for secondary calibration with complex tooling fixtures, which greatly simplifies the operation steps, reduces the technical requirements for operators, and improves production efficiency, especially suitable for rapid on-site assembly. The structure of this utility model can be formed in one step by cutting during the profile production stage, without the need for additional casting, forging, or installation of special connecting parts (such as hinges, shafts, etc.), reducing the number of parts and assembly steps, simplifying the production process, effectively reducing raw material consumption, mold development costs, and assembly time, and has excellent economic benefits.

[0050] Example 2

[0051] See Figures 6 to 10 To facilitate the fixing of the bent profile to other components, the bending connection part 3-2 in this embodiment 2 has a first semi-circular hole 35 directly opened on the first inclined surface, and a second semi-circular hole 36 is provided on the corresponding second oblique surface 32. When in the bending state, the first semi-circular hole 35 and the second semi-circular hole 36 form a complete circular hole, eliminating the need to drill holes in the bent profile. The process is simple and the installation is convenient.

[0052] Example 3

[0053] The table legs are based on the easily bendable and weldable profiles described in Embodiments 1 and 2. The table legs are formed by bending the aforementioned easily bendable and weldable profiles once or multiple times; in this embodiment, they are formed by bending twice. Specifically, it includes: a first profile body 1, a second profile body 2, and a first profile body 1 connected in sequence; and a bending connection portion 3, as described above, disposed between the second profile body 2 and the first profile body 1, i.e., bending connection portion 3-1 in Embodiment 1 or bending connection portion 3-2 in Embodiment 2. The two bending connection portions 3 are respectively disposed at the connection points between the two first profile bodies 1 and the second profile body 2, and the two bending connection portions 3 are located on the same side of the second profile body 2, with the two first profile bodies 1 bending towards the same side of the second profile body 2.

[0054] like Figure 11 and Figure 12 As shown, this embodiment takes the structure of the bending connection part 3-2 in Embodiment 2 as an example. The included angle between the first oblique surface 31 and the second oblique surface 32 in the bending connection part 3 is 90°. The two first profile bodies 1 and one second profile body 2 are bent to form a U-shaped support structure. That is, the two first profile bodies 1 serve as two table legs, and the middle second profile body 2 serves as a support frame connecting the two table legs. The three profile segments are quickly and accurately transformed into a U-shaped support table leg through the two 90° bending connection parts 3.

[0055] The supporting table legs in this embodiment have the following advantages: the beveled surfaces fit perfectly after bending, the bottom positioning structures interlock, and the load-bearing capacity is strong. The 90° beveled surfaces and positioning structures ensure precise right angles with each bend, eliminating the need for measurement. Furthermore, no additional connectors are required; they can be formed simply by bending, making them ideal for mass production.

[0056] Furthermore, the supporting table legs in this embodiment, such as Figure 13 As shown, after the two side table legs are bent relative to the middle second profile body 2, the bent part of the profile is matched by the precise cut surface contact. It only needs to be welded and fixed at the abutment of the first positioning part 33 and the corresponding lower end face of the second profile body 2. The welding area is small, avoiding the weld scars or protrusions caused by riveting or bolting, making the appearance of the supporting table legs smoother, cleaner and more beautiful, and improving the texture of the supporting table legs.

[0057] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A profile that is easy to bend and weld, characterized in that, include: An elongated profile component, the elongated profile component comprising a first profile body (1) and a second profile body (2) connected to each other; A bending connection part (3) is provided at the connection between the first profile body (1) and the second profile body (2); The bending connection part (3) includes a first oblique cut surface (31) cut on the first profile body (1), a second oblique cut surface (32) cut on the second profile body (2), a first positioning part (33) disposed at the lower end of the first oblique cut surface (31), and a second positioning part (34) disposed at the lower end of the second oblique cut surface (32); When the profile is bent around the bending connection part (3), the first beveled surface (31) and the second beveled surface (32) overlap and abut against each other to form a tightly contacting interface; the first positioning part (33) and the second positioning part (34) abut against each other for positioning.

2. The profile for easy bending and welding according to claim 1, characterized in that: The first positioning part (33) is a "┌" shaped cut surface formed at the lower end of the first profile body (1), and the second positioning part (34) is a vertical cut surface formed at the lower end of the second profile body (2).

3. The profile for easy bending and welding according to claim 1, characterized in that: When the profile is in a straight state, the angle β between the first oblique surface (31) and the second oblique surface (32) is 90°.

4. The profile that is easy to bend and weld according to claim 2, characterized in that: The first positioning part (33) includes a horizontal contact surface (331) and a vertical limiting surface (332); the vertical sectional length of the second positioning part (34) is the same as the length of the horizontal contact surface (331); When in a bent state, the horizontal contact surface (331) coincides with the vertical cut surface and abuts against it, and the vertical limiting surface (332) abuts against the lower end surface of the second profile body (2).

5. The profile for easy bending and welding according to claim 1, characterized in that: A first semicircular hole (35) is provided on the first oblique surface (31), and a second semicircular hole (36) is provided on the second oblique surface (32); when in a bent state, the first semicircular hole (35) and the second semicircular hole (36) form a complete circular hole.

6. A table leg support, characterized in that: It is formed by bending or welding a profile as described in any one of claims 1-5 once or multiple times.

7. A table leg support according to claim 6, characterized in that, include: The first profile body (1), the second profile body (2), and the first profile body (1) are connected in sequence; Two bending connection parts (3) are respectively provided at the connection between the two first profile bodies (1) and the second profile body (2), and the two bending connection parts (3) are located on the same side of the second profile body (2), and the two first profile bodies (1) bend towards the same side of the second profile body (2).

8. A table leg support according to claim 6, characterized in that, It is formed by bending the aforementioned easily bent and weldable profile twice.

9. A table leg support according to claim 8, characterized in that: The angle between the first oblique surface (31) and the second oblique surface (32) in the two bent connecting parts (3) is 90°; the two first profile bodies (1) and one second profile body (2) are bent to form a U-shaped support structure.

10. A table leg support according to claim 9, characterized in that: When in the table leg structure state, the first positioning part (33) is welded and fixed at the contact point between the lower end face of the corresponding second profile body (2).

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