Welding-free keel profile

Abstract

The utility model provides a welding-free keel section bar which comprises a pipe body which is of a hollow tubular structure formed by bending a square metal plate with a first free end and a second free end. The first free end is bent towards the direction close to the second free end to form a first slot into which the second free end is inserted; the second free end is bent towards the direction close to the first free end to form a second slot into which the first free end is inserted; and the orientation of the first free end is opposite to that of the second free end. The welding-free keel section bar is a welding-free keel section bar, and due to the structural design, the production efficiency of the keel section bar can be improved.

Description

Technical Field

[0001] The present application relates to the field of construction technology, and in particular to a welding-free keel profile. Background Art

[0002] In architecture and structural engineering, keel profiles are crucial supporting components, often used in the construction of walls, ceilings, and other structures. Traditionally, keel production involves bending and welding flat metal plates. While this method can achieve closed-section designs, it suffers from low production efficiency, uneven weld joint strength, and susceptibility to environmental influences.

[0003] However, welding not only increases production complexity but also makes quality control of welded parts difficult, potentially impacting the overall structural strength and stability. Furthermore, the heat generated during welding can cause thermal deformation of the material, affecting the dimensional accuracy and consistency of the keel. Furthermore, welded joints are susceptible to fatigue damage over long-term use, impacting the durability of the structure.

[0004] In order to solve the above technical problems, the present application proposes a welding-free keel profile. Utility Model Content

[0005] The purpose of the utility model is to provide a welding-free keel profile. Other welding-free keel profiles have a structural design that can improve the production efficiency of the keel profile itself.

[0006] Based on this, an embodiment of the present invention discloses a welding-free keel profile, including: a tube body, a hollow tubular structure formed by bending a square metal plate; the tube body includes a first free end and a second free end; the first free end is bent toward a direction close to the second free end to form a first slot for inserting the second free end; the second free end is bent toward a direction close to the first free end to form a second slot for inserting the first free end; the direction of the first free end is opposite to that of the second free end.

[0007] By adopting the above technical solution, a first slot is formed by bending the first free end toward the second free end, and the first slot is used to insert the second free end. The second free end is bent toward the first free end to form a second slot, and the second slot is used to insert the first free end. This staggered insertion realizes the connection of the profile port, thereby avoiding welding operation, and at the same time, makes the connection of the keel profile more stable.

[0008] According to one embodiment of the present application, the tube body further includes at least one first groove, which is arranged on the outer wall of the tube body and extends from the proximal end to the distal end of the tube body for cooperating with the connecting piece.

[0009] According to one embodiment of the present application, it also includes: a plurality of protrusions and / or third grooves are provided on the inner bottom wall of the first groove along its length direction.

[0010] By adopting the above technical solution, a plurality of protrusions and / or friction layers are provided on the bottom wall of the first groove along its length direction to increase the friction with the connecting member and improve the stability of the connection.

[0011] According to one embodiment of the present application, it further includes a second groove, which is arranged on the outer wall of the tube body and extends from the proximal end to the distal end of the tube body; the notch of the second groove faces the outside of the tube body.

[0012] According to one embodiment of the present application, the cross-sectional shape of the second groove may be U-shaped, V-shaped or wavy.

[0013] According to one embodiment of the present application, the first groove includes a first connecting edge, a second connecting edge and a third connecting edge connected in sequence; the first connecting edge and the third connecting edge are respectively connected to two adjacent tube edges of the tube body.

[0014] According to one embodiment of the present application, the first connecting edge and the third connecting edge are parallel to each other.

[0015] According to one embodiment of the present application, the sum of a first angle between the first connecting edge and its corresponding connected tube body edge and a second angle between the third connecting edge and its corresponding connected tube body edge is 90°.

[0016] According to one embodiment of the present application, the number of the first grooves is three.

[0017] According to one embodiment of the present application, the tube body also includes a first bending surface and a second bending surface, the first bending surface and the second bending surface are parallel to each other, the first bending surface is connected to the first slot port, the second bending surface is connected to the second slot port, the first bending surface and the first slot form an L-shaped groove, and the second slot is located in the L-shaped groove; the first free end is close to the side wall of the second slot, and the second free end is close to the side wall of the first slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1A cross-sectional view of an embodiment of the present application is provided. Figure 1 ;

[0020] Figure 2 A cross-sectional view of an embodiment of the present application is provided. Figure 2 ;

[0021] Figure 3 for Figure 1 Provide a three-dimensional diagram of the keel profile;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Reference numerals: 1, tube body; 11, first groove; 111, first connecting edge; 112, second connecting edge; 113, third connecting edge; 12, second groove; 14, tube body edge;

[0024] First free end; 21, first slot;

[0025] Second free end; 31, second slot;

[0026] First bending surface; 41, L-shaped groove; 5 second bending surface. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one feature. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0032] Considering that traditional keel production methods usually use a process of bending and welding metal flat plates. Although this method can achieve a closed cross-section design, it has problems such as low production efficiency, uneven weld joint strength, and susceptibility to environmental influences. To address this problem, this application provides a welding-free keel profile that can achieve reusability and meet certain temperature change requirements and tube displacement characteristics.

[0033] Specifically, see Figures 1 to 4 One embodiment of the present application provides a weld-free keel profile, primarily comprising a tube body 1 formed by bending a square metal plate having a first free end 2 and a second free end 3 to form a hollow tubular structure. The first free end 2 is bent toward the second free end 3 to form a first slot 21 for accommodating the second free end 3. Conversely, the second free end 3 is bent toward the first free end 2 to form a second slot 31 for accommodating the first free end 2. A square metal plate having a first free end 2 and a second free end 3 can be processed into a weld-free keel profile simply by bending the plate using existing techniques. The first free end 2 is bent toward the second free end 3 to form a first slot 21 for inserting the second free end 3. The second free end 3 is bent toward the first free end 2 to form a second slot 31 for inserting the first free end 2. This staggered insertion achieves connection of the profile ends, thereby avoiding welding operations and making the keel profile connection more stable.

[0034] According to one embodiment of the present application, please refer to Figures 1 to 4 The tube body also includes a first bending surface 4 and a second bending surface 5. The first bending surface 4 and the second bending surface 5 are parallel to each other. The first bending surface 4 is connected to the end of the first slot 21, and the second bending surface 5 is connected to the end of the second slot 31. The first bending surface 4 and the first slot 21 form an L-shaped groove, and the second slot 21 is located in the L-shaped groove. The setting of the first bending surface 4 and the second bending surface 5, on the one hand, is to make the connection of the profile port more firm, and on the other hand, it can also further improve the aesthetics of the keel.

[0035] According to one embodiment of the present application, please refer to Figures 1 to 4 The first free end is close to the side wall of the second slot 31, and the second free end is close to the side wall of the first slot 21, so that the connection of the profile port is more secure.

[0036] According to one embodiment of the present application, please refer to Figures 1 to 3 The outer wall of the tube body 1 is provided with at least one first groove 11. The first groove 11 is formed by the outer wall of the tube body 1 being recessed into the inner cavity of the tube body 1. The first groove 11 extends from the proximal end to the distal end of the tube body 1 and is configured to engage with the connector. The bottom wall of the first groove 11 is provided with multiple protrusions and / or friction layers along its length. These protrusions and friction layers increase friction with the connector and enhance the stability of the connection.

[0037] Further, see Figure 1 and Figure 2 First groove 11 may include a first connecting edge 111, a second connecting edge 112, and a third connecting edge 113, which are connected in sequence. First connecting edge 111 and third connecting edge 113 are respectively connected to two adjacent tube edges 14 of tube body 1 and are parallel to each other. Furthermore, the sum of the first angle between first connecting edge 111 and its corresponding tube edge 14 and the second angle between third connecting edge 113 and its corresponding tube edge 14 is 90°. This design effectively optimizes the stability of the structure.

[0038] The design of the first groove 11 ensures that the connector can be stably embedded in the tube body 1 at multiple positions along the length direction of the keel profile. The number of the first grooves 11 can be one, two, three or four, and can be set according to the use requirements. Figure 2 A schematic cross-sectional view of a keel profile having three first grooves 11 is given.

[0039] According to one embodiment of the present application, see Figure 1 and Figure 3 The first connecting edge 111 and the third connecting edge 113 are parallel to each other, making it convenient for the connecting piece to be embedded or clipped into the tube body 1 .

[0040] According to one embodiment of the present application, see Figure 2 and Figure 3 The sum of the first angle α between the first connecting edge 111 and the corresponding tube body edge 14 and the second angle β between the third connecting edge 113 and the corresponding tube body edge 14 is 90°. The sum of the first angle α and the second angle β is 90°, so that the first connecting edge 111 and the third connecting edge 113 of the two first grooves 11 at the diagonal corners of the tube body 1 are on the same straight line, utilizing the principle that the triangle is the most stable, thereby providing better mechanical support and avoiding displacement or instability of the connecting piece during installation.

[0041] According to one embodiment of the present application, please refer to Figure 1-3 The number of the first grooves 11 is three. The three first grooves 11 are evenly distributed, which can provide multiple points of fixation, thereby having more options to meet the needs of different occasions. If the connector can be embedded or snapped into the two first grooves 11 at the diagonal corners of the tube body 11 at the same time, it can have higher stability.

[0042] According to one embodiment of the present application, please refer to Figures 1 to 3 The tube body 1 further includes a second groove 12, which is also provided on the outer wall of the tube body 1, extending from the proximal end to the distal end of the tube body 1, with the notch facing the outside of the tube body 1. The cross-sectional shape of the second groove 12 can be U-shaped, V-shaped, or wavy. The design of the second groove 12 can increase the strength of the keel profile.

[0043] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A welding-free keel profile, characterized in that: include: The tube body is a hollow tubular structure formed by bending a square metal plate having a first free end and a second free end; The first free end is bent toward the direction close to the second free end to form a first slot for the second free end to be inserted into; The second free end is bent toward the direction close to the first free end to form a second slot for the first free end to be inserted into; The orientation of the first free end is opposite to the orientation of the second free end.

2. The welding-free keel profile according to claim 1, characterized in that: The tube body further includes at least one first groove, which is arranged on the outer wall of the tube body and extends from the proximal end to the distal end of the tube body for cooperating with the connecting piece.

3. The welding-free keel profile according to claim 2, characterized in that: Also includes: The inner bottom wall of the first groove is provided with a plurality of protrusions and / or friction layers along its length direction.

4. The welding-free keel profile according to claim 1, characterized in that: It also includes a second groove, which is arranged on the outer wall of the tube body and extends from the proximal end to the distal end of the tube body; the notch of the second groove faces the outside of the tube body.

5. The welding-free keel profile according to claim 4, characterized in that: The cross-sectional shape of the second groove may be U-shaped, V-shaped or wavy.

6. The welding-free keel profile according to claim 2, characterized in that: The first groove includes a first connecting edge, a second connecting edge and a third connecting edge that are connected in sequence; the first connecting edge and the third connecting edge are respectively connected to two adjacent tube edges of the tube body.

7. The welding-free keel profile according to claim 6, characterized in that: The first connecting edge and the third connecting edge are parallel to each other.

8. The welding-free keel profile according to claim 7, characterized in that: The sum of a first angle between the first connecting edge and the corresponding tube edge of the tube body connected thereto and a second angle between the third connecting edge and the corresponding tube edge of the tube body connected thereto is 90°.

9. The welding-free keel profile according to claim 8, characterized in that: The number of the first grooves is three.

10. The welding-free keel profile according to claim 1, characterized in that: The tube body also includes a first bending surface and a second bending surface, the first bending surface and the second bending surface are parallel to each other, the first bending surface is connected to the first slot port, the second bending surface is connected to the second slot port, the first bending surface and the first slot form an L-shaped groove, and the second slot is located in the L-shaped groove; the first free end is close to the side wall of the second slot, and the second free end is close to the side wall of the first slot.

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