Double-splicing assembly for channel steel profiles

Abstract

The utility model discloses a channel steel section bar double-splicing assembly which comprises a first section bar and a second section bar which are overlapped, the first section bar and the second section bar are overlapped and stamped to form a plurality of riveting units, and each riveting unit comprises a stamping convex point located on the first section bar and a stamping concave point located on the second section bar. The stamping convex points and the stamping concave points are extruded to form a deformation area, and the stamping convex points and the stamping concave points are mutually buckled in the deformation area. The first section bar and the second section bar are firmly spliced into a whole by stamping to form a plurality of riveting units, the stamping convex points of the first section bar and the stamping concave points of the second section bar are extruded and deformed to form the deformation area, and the contact area of the stamping convex points and the stamping concave points in the deformation area is increased. And the U-steel section bars are mutually buckled in a deformation area to generate locking performance, so that the U-steel section bar double-splicing assembly with high strength and high stability is formed.

Description

Technical Field

[0001] This utility model relates to the field of double-jointed riveting and stamping technology of channel steel in earthquake-resistant, finished products, and photovoltaic industries, and more specifically, to a double-jointed assembly of channel steel profiles. Background Technology

[0002] In engineering applications, C-shaped channel steel is widely used due to the requirements of load-bearing strength and fixing method. To enhance its load-bearing capacity, C-shaped channel steel is often doubled to form a load-bearing rod, that is, two C-shaped channel steels are placed back to back, and the bottom surfaces are processed to make them into one piece. Currently, commonly used splicing processing methods include: 1) Integral welding: During processing, a robotic arm is used to weld on both sides along the entire length. The weld is uniform and reliable, with low labor costs and high efficiency. However, the equipment investment is large, and the weld is prone to deformation, requiring additional straightening processes, resulting in high welding costs. 2) Segment welding: Manual welding is used, resulting in fewer welds and lower costs. However, the labor input is large, efficiency is low, welding quality is difficult to guarantee, and the overall cost is high. 3) Riveting connection: Not only do holes need to be pre-drilled on the product, but rivets are also required as consumables. The riveting process takes too long, and the process cost is higher than resistance welding, with lower production efficiency. 4) Butt welding: Butt welding machines are used for intermittent spot welding. This method is low-cost, efficient, and produces an aesthetically pleasing appearance. It works well for products with high-quality raw material surfaces. However, when the surface quality of the raw material is poor (e.g., the surface of the raw material cannot be oily or rusty), the welding quality is affected. At the same time, the shape of the upper and lower contacts of the welding machine is critical. When the number of welding cycles reaches 80-100, the contacts need to be disassembled for correction. Otherwise, false welds are easily caused, making it difficult to guarantee welding quality. The shortcomings of the above splicing method affect the load-bearing performance of the finished load-bearing rod.

[0003] Chinese patent CN205383424U discloses a double-layered C-shaped load-bearing rod, which uses multiple U-shaped interlocking grooves formed by stacking and stamping to fix two C-shaped channel steels together as one unit. However, the U-shaped interlocking grooves on the existing double-layered C-shaped load-bearing rod may gradually deform or wear under the combined effects of long-term load and external environmental factors, posing a risk of separation. Utility Model Content

[0004] To overcome the problem that the U-shaped joint groove on the existing double-section C-shaped structure bearing rod may gradually deform or wear under the combined effects of long-term load and external environmental factors, posing a risk of separation, this utility model provides a double-section assembly of channel steel profiles.

[0005] The technical solution of this utility model is as follows:

[0006] A double-section assembly of channel steel profiles includes a first profile and a second profile stacked together. The first profile and the second profile are stacked and stamped to form a plurality of riveting units. Each riveting unit includes a stamping protrusion on the first profile and a stamping concave point on the second profile. The stamping protrusion and the stamping concave point are pressed together to form a deformation area, and the stamping protrusion and the stamping concave point are interlocked with each other in the deformation area.

[0007] According to the above-described scheme of this utility model, the deformation of the stamping protrusion and the stamping concave in the deformation area is not less than 0.3mm.

[0008] According to the above-described scheme of this utility model, the riveting unit is a circular or rectangular structure.

[0009] According to the above-described scheme of this utility model, the opening of the stamping protrusion faces upward, and the diameter of the inner side of the stamping protrusion gradually increases from the bottom to the port.

[0010] According to the above-described scheme of this utility model, the stamping indentation is recessed inward to form a reinforcing groove.

[0011] According to the above-described scheme of this utility model, the opening of the reinforcing groove faces downward, and the diameter of the reinforcing groove gradually increases from the bottom to the port.

[0012] According to the above-described scheme of this utility model, the angle between the outer end face of the stamping recess and the second profile is a right angle.

[0013] According to the above-mentioned solution, the beneficial effect of this utility model is that the first profile and the second profile of this utility model are firmly spliced ​​together as one piece by forming multiple riveting units through stamping. After the stamping protrusions of the first profile and the stamping concave points of the second profile are squeezed and deformed, a deformation area is formed. In the deformation area, the contact area of ​​the stamping protrusions and the stamping concave points increases, and they interlock with each other in the deformation area to generate locking performance, thus forming a double splice assembly of channel steel profiles with high strength and high stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the existing technology;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.

[0018] In the figure, the various attached figures are labeled as follows:

[0019] 10. First profile; 20. Second profile; 30. Riveting unit; 31. Stamping protrusion; 32. Stamping concave point; 321. Reinforcing groove; 33. Deformation area. Detailed Implementation

[0020] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. Terms such as "set up" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly defined. Terms such as "upper," "lower," "left," "right," "front," "rear," and "bottom" indicate orientations or positions based on the orientations or positions shown in the accompanying drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0022] It should be noted that Chinese patent CN205383424U discloses a double-layered C-shaped load-bearing rod, which uses multiple U-shaped interlocking grooves formed by stacking and stamping to fix two C-shaped channel steels together as one unit. However, the U-shaped interlocking grooves on the existing double-layered C-shaped load-bearing rod may gradually deform or wear under the combined effects of long-term load and external environmental factors, posing a risk of separation.

[0023] like Figures 2-3As shown, this embodiment provides a double-jointed assembly of channel steel profiles. The first profile 10 and the second profile 20 are firmly joined together by stamping to form multiple riveting units 30. After the stamping protrusions 31 of the first profile 10 and the stamping concave points 32 of the second profile 20 are extruded and deformed, a deformation area 33 is formed. In the deformation area 33, the contact area of ​​the stamping protrusions 31 and the stamping concave points 32 increases, and they interlock with each other in the deformation area 33 to generate locking performance, thus forming a double-jointed assembly of channel steel profiles with high strength and high stability.

[0024] Specifically, the double-section steel profile assembly includes a first profile 10 and a second profile 20 stacked together. The first profile 10 and the second profile 20 are stacked and stamped to form multiple riveting units 30. Each riveting unit 30 includes a stamping protrusion 31 on the first profile 10 and a stamping concave point 32 on the second profile 20. The stamping protrusion 31 and the stamping concave point 32 are pressed together to form a deformation area 33, and the stamping protrusion 31 and the stamping concave point 32 are interlocked with each other in the deformation area 33.

[0025] The first profile 10 and the second profile 20 come into contact and are compressed during stamping, thus forming a riveting unit 30. The stamping protrusions 31 and stamping recesses 32 of the riveting unit 30 are tilted and deformed, forming a deformation region 33. In the deformation region 33, the contact area of ​​the stamping protrusions 31 and stamping recesses 32 increases, and they interlock with each other in the deformation region 33. This structure not only enhances the connection strength of the double-piece assembly of the channel steel profiles formed by splicing the first profile 10 and the second profile 20, but also ensures that they are not easily separated under stress.

[0026] In one embodiment, the deformation amount of the stamping protrusion 31 and the stamping concave point 32 in the deformation region 33 is X, and the value of X is not less than 0.3 mm. The deformation amount of 0.3 mm ensures that when the stamping protrusion 31 of the first profile 10 and the stamping concave point 32 of the second profile 20 are subjected to external force, they form a tight contact and lock in the deformation region 33, and the connection between the first profile 10 and the second profile 20 is firm and not easily separated by external factors.

[0027] Over time, due to the tight interlocking structure formed between the stamping protrusions 31 and the stamping recesses 32, and the sufficient amount of deformation to adapt to external changes, the double-jointed assembly of channel steel profiles can still maintain its stable mechanical properties.

[0028] In one embodiment, the riveting unit 30 is a circular or rectangular structure.

[0029] Preferably, the riveting unit 30 is circular, with the stamping protrusion 31 opening upwards, and the diameter of the inner side of the stamping protrusion 31 gradually increases from the bottom to the end. The stamping tool acts directly on the first profile 10 during stamping, thereby forming the upward-opening stamping protrusion 31, achieving precise and efficient stamping operations. The design of the stamping protrusion 31's inner side diameter gradually increasing from the bottom to the end not only helps the first profile 10 to flow evenly during stamping but also effectively increases the deformation of the stamping protrusion 31, thereby increasing the contact area between the stamping protrusion 31 and the stamping recess 32 in the deformation area 33. This improves the stability of the connection between the first profile 10 and the second profile 20 and also reduces stress concentration during stamping to a certain extent, extending the service life of the double-jointed channel steel profile assembly.

[0030] The stamping recess 32 is recessed inward to form a reinforcing groove 321. Under the external force of the stamping tool, the second profile 20 at the reinforcing channel steel can be more effectively squeezed to both sides, thereby increasing the deformation of the stamping recess 32 on the second profile 20, and thus increasing the contact area between the stamping protrusion 31 and the stamping recess 32 in the deformation area 33. This not only enhances the interlocking force between the stamping recess 32 and the stamping protrusion 31, but also absorbs and disperses the external force exerted by the stamping tool on the second profile 20 to a certain extent, improving the stability and safety of the double-piece assembly of the channel steel profile.

[0031] The reinforcing groove 321 has a downward-facing opening, and its diameter gradually increases from the bottom to the end. During stamping, the stamping tool acts directly on the second profile 20, forming the downward-facing reinforcing groove 321, achieving precise and efficient stamping operations. The design of the reinforcing groove 321, with its diameter gradually increasing from the bottom to the end, not only facilitates uniform flow of the second profile 20 during stamping but also effectively increases the deformation of the stamping recess 32. This increases the contact area between the stamping recess 32 and the stamping protrusion 31 in the deformation area 33, thereby improving the stability of the connection between the first profile 10 and the second profile 20. It also reduces stress concentration during stamping to some extent, extending the service life of the double-piece assembly of channel steel profiles.

[0032] In one embodiment, the outer end face of the stamping recess 32 forms a right angle with the second profile 20. During stamping, the stamping tool guides the second profile 20 to flow and deform along the right-angled edge of the stamping die, thus making the angle between the outer end face of the stamping recess 32 and the second profile 20 a right angle. This right-angle design increases the deformation of the stamping recess 32, thereby increasing the contact area between the stamping recess 32 and the stamping protrusion 31 in the deformation region 33, and thus improving the stability of the connection between the first profile 10 and the second profile 20.

[0033] Under the combined effect of the right-angle stamping die and the reinforcing groove 321, the deformation of the stamping recess 32 can be maximized, and the locking performance generated by the snap-fit ​​between the stamping recess 32 and the stamping protrusion 31 is large, further improving the stability of the connection between the first profile 10 and the second profile 20.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0035] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A double-section assembly of channel steel profiles, characterized in that, The device includes a first profile and a second profile that are stacked together. The first profile and the second profile are stacked and stamped to form a plurality of riveting units. Each riveting unit includes a stamping protrusion on the first profile and a stamping concave point on the second profile. The stamping protrusion and the stamping concave point are pressed together to form a deformation area, and the stamping protrusion and the stamping concave point are interlocked with each other in the deformation area.

2. The double-section assembly of channel steel profiles according to claim 1, characterized in that, The deformation of the stamping protrusion and the stamping concave in the deformation area is not less than 0.3 mm.

3. A double-section assembly of channel steel profiles according to claim 1 or 2, characterized in that, The riveting unit has a circular or rectangular structure.

4. The double-section assembly of channel steel profile according to claim 3, characterized in that, The stamping protrusion has an upward opening, and the diameter of the inner side of the stamping protrusion gradually increases from the bottom to the port.

5. A double-section assembly of channel steel profiles according to claim 4, characterized in that, The stamping indentation is recessed inward to form a reinforcing groove.

6. A double-section assembly of channel steel profiles according to claim 5, characterized in that, The reinforcing groove has an opening facing downwards, and its diameter gradually increases from the bottom to the port.

7. A double-section assembly of channel steel profiles according to claim 1, characterized in that, The outer end face of the stamping indentation forms a right angle with the second profile.

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