A profile steel connecting structure

Abstract

The utility model relates to photovoltaic support technical field discloses a section steel connecting structure, including C type steel subassembly and no curling C type steel, C type steel subassembly includes first C type steel and second C type steel, the web of no curling C type steel is set up with the curling of first C type steel adaptation's bayonet, the two flanges of no curling C type steel all are set up with the flange of first C type steel adaptation's first gap, the first C type steel is set up with the second gap of first gap one -to -one correspondence and the clamping cooperation, the curling of first C type steel includes the clamping portion between two first gaps, this clamping portion and bayonet clamping cooperation, first C type steel, second C type steel and no curling C type steel are connected through fastening assembly. Through setting up with the bayonet and first gap of first C type steel adaptation on no curling C type steel, cooperate corresponding second gap on first C type steel, form double positioning clamping structure, can promote the stability and carrying capacity of section steel connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a steel connection structure. Background Technology

[0002] In photovoltaic (PV) mounting systems, C-shaped steel is a core material for constructing the support structure due to its excellent mechanical properties and economic efficiency. C-shaped steel needs to be connected through efficient structural systems to form a stable support frame, meeting the load-bearing requirements of PV module installation and the complex outdoor environment.

[0003] Currently, the traditional C-shaped steel connection method for photovoltaic brackets mainly adopts welding or simple bolt connection. The welding process is greatly affected by the weather when constructing outdoors, and the weld joints are prone to failure due to stress concentration or corrosion after long-term use. Welding is time-consuming and inconvenient to disassemble. Simple bolt connection has the problems of weak vibration resistance and easy loosening of the connection parts. Especially under the load of strong winds, snow accumulation, etc., it may cause deformation or even collapse of the bracket structure, which seriously affects the safety and reliability of photovoltaic system. Utility Model Content

[0004] In response to the requirements of photovoltaic support systems for high reliability, convenient installation, and environmental adaptability of connection structures, this utility model provides a steel connection structure, which aims to solve the problems of insufficient connection strength, low installation efficiency, and poor resistance to environmental loads in existing connection methods in photovoltaic applications.

[0005] To achieve the above objectives, this utility model provides a steel profile connection structure, including a C-shaped steel assembly and a C-shaped steel without rolled edges. The C-shaped steel assembly includes a first C-shaped steel and a second C-shaped steel. The length direction of the C-shaped steel without rolled edges is perpendicular to the length direction of the first C-shaped steel, and the length directions of the first and second C-shaped steels are parallel. The opening directions of the first and second C-shaped steels face each other, and the C-shaped steel without rolled edges is located between the first and second C-shaped steels.

[0006] The web of the C-shaped steel without rolled edges has a snap-fit ​​notch adapted to the rolled edge of the first C-shaped steel. Both flanges of the C-shaped steel without rolled edges have first notches adapted to the flanges of the first C-shaped steel. The first C-shaped steel has second notches that correspond one-to-one with the first notches and engage with them, extending through the rolled edge of the first C-shaped steel to its flange. The rolled edge of the first C-shaped steel includes a snap-fit ​​portion located between the two first notches, which engages with the snap-fit ​​notch. The rolled edge of the second C-shaped steel abuts against the web of the C-shaped steel without rolled edges and the rolled edge of the first C-shaped steel. The first C-shaped steel, the second C-shaped steel, and the C-shaped steel without rolled edges are connected by a fastening assembly.

[0007] Furthermore, the inner wall of the first notch contacts and fits with the flange of the first C-shaped steel, and the inner wall of the second notch contacts and fits with the flange of the C-shaped steel without rolled edges. This design can further improve the tightness and stability of the connection, and make the force transmission between the components more uniform.

[0008] The fastening assembly includes bolts and nuts. The first C-shaped steel, the second C-shaped steel, and the C-shaped steel without rolled edges all have openings for the bolts to pass through. After passing through the openings in the first C-shaped steel, the C-shaped steel without rolled edges, and the second C-shaped steel, the bolts are threaded into the nuts. This fastening method has a simple structure, is easy to install and disassemble, and ensures the reliability of the connection.

[0009] The first and second C-shaped steel sections have straight rolled edges, and the first and second notches are rectangular notches, while the bayonet opening is rectangular. This design ensures the precision of the fit between the components and improves connection efficiency.

[0010] In addition, the edgeless C-shaped steel is connected to at least two C-shaped steel components. When the edgeless C-shaped steel is connected to two C-shaped steel components, the two C-shaped steel components are located near the two ends of the edgeless C-shaped steel. This arrangement can make the load borne by the edgeless C-shaped steel more even and improve the load-bearing capacity of the entire connection structure.

[0011] The beneficial effects of this technical solution are as follows: by setting a snap-fit ​​and a first notch on the C-shaped steel without rolled edges, and cooperating with the corresponding second notch on the first C-shaped steel, a double positioning snap-fit ​​structure is formed, which reduces the radial load of the fastening components. Compared with the existing single bolt connection method, it can improve the stability and load-bearing capacity of the connection parts and the entire support structure. Attached Figure Description

[0012] Figure 1 This is a perspective view of the steel connection structure according to an embodiment of the present utility model; Figure 2 This is a top view of the steel connection structure according to an embodiment of the present utility model; Figure 3 This is an exploded view of the steel connection structure according to an embodiment of the present utility model; Figure 4 This is a perspective view of the first C-shaped steel according to an embodiment of the present utility model; In the diagram, 1. C-shaped steel without rolled edge; 11. Bayonet; 12. First notch; 2. First C-shaped steel; 21. Second notch; 22. Snap-fit ​​part; 3. Second C-shaped steel; 4. Bolt; 5. Nut. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] Please see Figures 1 to 4 This application provides a steel profile connection structure, including two C-shaped steel components and a C-shaped steel section 1 without rolled edges. The C-shaped steel section 1 without rolled edges is connected to the two C-shaped steel components.

[0015] The C-shaped steel assembly includes a first C-shaped steel 2 and a second C-shaped steel 3. The first C-shaped steel 2 and the second C-shaped steel 3 are of the same type and both include a web, flanges and rolled edges. The rolled edges of the first C-shaped steel 2 and the second C-shaped steel 3 are straight rolled edges. The C-shaped steel 1 without rolled edges includes a web and flanges, but no rolled edges.

[0016] In this embodiment, the length direction of the C-shaped steel 1 without rolled edges is perpendicular to the length direction of the first C-shaped steel 2, the length directions of the first C-shaped steel 2 and the second C-shaped steel 3 are parallel, and the opening directions of the first C-shaped steel 2 and the second C-shaped steel 3 are facing each other. The C-shaped steel 1 without rolled edges is located between the first C-shaped steel 2 and the second C-shaped steel 3.

[0017] The web of the C-shaped steel 1 without rolled edges has a snap-fit ​​11 that matches the rolled edge of the first C-shaped steel 2. Both flanges of the C-shaped steel 1 have first notches 12 that match the flanges of the first C-shaped steel 2, the width of which is equal to the flange thickness of the first C-shaped steel 2. The first C-shaped steel 2 has second notches 21 that correspond one-to-one with and engage with the first notches 12, extending through the rolled edge of the first C-shaped steel 2 to its flange.

[0018] The rolled edge of the first C-shaped steel 2 includes a snap-fit ​​portion 22 located between two first notches 12, which engages with a snap-fit ​​opening 11. Specifically, the first notches 12 and the second notches 21 are rectangular notches, and the snap-fit ​​opening 11 is a rectangular opening.

[0019] The rolled edge of the second C-shaped steel 3 abuts against the web of the unrolled C-shaped steel 1 and the rolled edge of the first C-shaped steel 2. The first C-shaped steel 2, the second C-shaped steel 3, and the unrolled C-shaped steel 1 are connected by fastening components.

[0020] The inner wall of the first notch 12 contacts and fits with the flange of the first C-shaped steel 2, and the inner wall of the second notch 21 contacts and fits with the flange of the C-shaped steel 1 without rolled edges. The inner wall of the first notch 12 is completely fitted with the outer surface of the flange of the first C-shaped steel 2, and the inner wall of the second notch 21 is completely fitted with the inner surface of the flange of the C-shaped steel 1 without rolled edges, forming a double-sided contact force transmission. This design can improve the tightness and stability of the connection and make the force transmission between the components more uniform.

[0021] The fastening assembly includes bolts 4 and nuts 5. Holes for bolts 4 are provided on the first C-shaped steel 2, the second C-shaped steel 3, and the unrolled C-shaped steel 1. Bolts 4 pass through these holes and are threaded onto nuts 5. The fastening method of bolts 4 and nuts 5 is simple in structure, easy to install and disassemble, and ensures reliable connection. The two C-shaped steel components are located at the two ends of the C-shaped steel 1 without rolled edges. This arrangement makes the load on the C-shaped steel 1 without rolled edges more even. The support structure formed by the two C-shaped steel components and the C-shaped steel 1 without rolled edges is H-shaped, which can improve the load-bearing capacity of the entire connection structure.

[0022] The on-site assembly steps are as follows: S1, Preliminary positioning: Insert the snap-fit ​​part 22 of the first C-shaped steel 2 vertically into the snap-fit ​​11 of the C-shaped steel 1 without rolled edge, so that the second notch 21 of the flange of the first C-shaped steel 2 is completely aligned with the first notch 12 of the flange of the C-shaped steel 1 without rolled edge. At this time, the outer surface of the flange of the first C-shaped steel 2 is tightly fitted with the inner wall of the first notch 12 of the C-shaped steel 1 without rolled edge. S2, Symmetrical clamping: The opening of the second C-shaped steel 3 faces the unfurled C-shaped steel 1, so that its flange is pressed against the other side of the web of the unfurled C-shaped steel 1, and its flange is aligned with the flange of the unfurled C-shaped steel 1, forming a symmetrical clamping structure. At this time, the flanges of the second C-shaped steel 3 and the first C-shaped steel 2 are located on both sides of the web of the unfurled C-shaped steel 1; S3, Bolt 4 tightening: Pass the bolt 4 through the flange hole of the first C-shaped steel 2, the flange hole of the C-shaped steel 1 without rolled edge, and the flange hole of the second C-shaped steel 3 in sequence, and tighten it with nut 5 to ensure that the contact surface is tight and without gaps.

[0023] It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A structural steel connection structure, characterized by, The system includes a C-shaped steel assembly and a C-shaped steel without rolled edges (1). The C-shaped steel assembly includes a first C-shaped steel (2) and a second C-shaped steel (3). The length direction of the C-shaped steel without rolled edges (1) is perpendicular to the length direction of the first C-shaped steel (2). The length directions of the first C-shaped steel (2) and the second C-shaped steel (3) are parallel. The opening directions of the first C-shaped steel (2) and the second C-shaped steel (3) are opposite to each other. The C-shaped steel without rolled edges (1) is located between the first C-shaped steel (2) and the second C-shaped steel (3). The web of the C-shaped steel without rolled edges (1) is provided with a snap-fit ​​(11) that matches the rolled edge of the first C-shaped steel (2). Both flanges of the C-shaped steel without rolled edges (1) are provided with a snap-fit ​​(11) that matches the rolled edge of the first C-shaped steel (2). (2) The flange of the first C-shaped steel (2) is fitted with a first notch (12). The first C-shaped steel (2) is provided with a second notch (21) that corresponds to the first notch (12) and is engaged with it. The second notch (21) extends through the rolled edge of the first C-shaped steel (2) to the flange of the first C-shaped steel (2). The rolled edge of the first C-shaped steel (2) includes a snap-fit ​​part (22) located between the two first notches (12). The snap-fit ​​part (22) is engaged with the snap-fit ​​opening (11). The rolled edge of the second C-shaped steel (3) abuts against the web of the unrolled C-shaped steel (1) and the rolled edge of the first C-shaped steel (2). The first C-shaped steel (2), the second C-shaped steel (3) and the unrolled C-shaped steel (1) are connected by a fastening assembly.

2. The structural steel connection of claim 1, wherein The inner wall of the first notch (12) is in contact with the flange of the first C-shaped steel (2), and the inner wall of the second notch (21) is in contact with the flange of the C-shaped steel (1) without rolled edge.

3. The structural steel connection of claim 1, wherein The fastening assembly includes a bolt (4) and a nut (5). The first C-shaped steel (2), the second C-shaped steel (3), and the C-shaped steel without rolled edges (1) are all provided with openings for the bolt (4) to pass through. After the bolt (4) passes through the openings on the first C-shaped steel (2), the C-shaped steel without rolled edges (1), and the second C-shaped steel (3), it is threadedly connected to the nut (5).

4. The structural steel connection of claim 1, wherein The first C-shaped steel (2) and the second C-shaped steel (3) have straight rolled edges, the first notch (12) and the second notch (21) are rectangular notches, and the bayonet (11) is a rectangular opening.

5. The shape steel connecting structure according to claim 1, wherein The unrolled C-shaped steel (1) is connected to at least two C-shaped steel components.

6. The structural steel connection of claim 5, wherein, The edgeless C-shaped steel (1) is connected to two C-shaped steel components, which are located near the two ends of the edgeless C-shaped steel (1).

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