Purline assembly structure of photovoltaic support
Through the combination of double U-shaped cross buckles and fastening components, the stability and quality problems of traditional welded connections are solved, and the stable connection between photovoltaic bracket purlins and inclined beams is achieved, reducing installation complexity and cost.
Patent Information
- Application Number
- CN202421795314.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The welding connection between purlins and inclined beams in traditional photovoltaic brackets has problems such as excessive heat-affected zone, poor weld molding, difficult quality to guarantee, and easy loosening in harsh environments, resulting in unstable structure.
The purlins are connected to the oblique beam by double U-shaped cross buckles and fastening components. The purlins are fixed through the U-shaped clasp and connecting rod of the double U-shaped cross buckle. The fastening components include pressure plates and nuts, and are tightly fixed by the mating of the threaded structure and the fastening components.
There is no need for complex welding processes, which reduces installation time and cost, ensures stability between the purlin and the inclined beam, avoids the risk of open welding or breakage caused by poor welding quality, and improves the stability of the overall structure.
Smart Images
Figure CN222852200U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic support technology, and in particular to a purlin assembly structure for a photovoltaic support. Background Technology
[0002] Purlins are secondary beams in photovoltaic (PV) systems and require on-site assembly. Traditionally, purlin installation involves welding the connection between the PV system's inclined beams and the purlins. However, welding the purlins to the inclined beams is problematic due to the thin walls of the inclined beams. This can lead to issues such as an excessively large heat-affected zone and poor weld formation, making it difficult to guarantee weld quality. Furthermore, the welding process is complex and requires additional anti-corrosion measures. In harsh environments, the connection between the inclined beams and purlins can easily loosen. The welded purlins have limited load-bearing capacity, and under heavy loads, the weld between the purlin and the inclined beam can easily crack, resulting in overall structural instability.
[0003] Therefore, how to stably assemble the purlins onto the inclined beams of the photovoltaic support has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] In view of this, this application proposes a purlin assembly structure for a photovoltaic bracket, including: a diagonal beam, purlins, a double U-shaped cross buckle, and fastening components;
[0005] The purlins and the diagonal beams are placed intersecting each other, and the length direction of the purlins is perpendicular to the length direction of the diagonal beams.
[0006] The purlins and the diagonal beams are connected by double U-shaped cross buckles;
[0007] The double U-shaped cross clamp includes two opposing U-shaped clamps and a connecting rod. The inclined beam passes through the openings of the two U-shaped clamps, and the purlin is located between the two U-shaped clamps. One end of the two U-shaped clamps is fixedly connected by the connecting rod, and the connecting rod abuts against the outer wall of the purlin.
[0008] The other end of each of the two U-shaped clamps is provided with a threaded structure, and the threaded ends of the two U-shaped clamps are connected by a fastening assembly.
[0009] In one possible implementation, the fastening assembly includes a pressure plate and two nuts; one end of each of the two U-shaped clamps with a threaded structure passes through the pressure plate and the pressure plate is in close contact with the outer wall of the purlin; the threaded structure of the two U-shaped clamps matches the internal threaded structure of the two nuts, the U-shaped clamps are threadedly connected to the nuts, and the two nuts are located on the side of the pressure plate away from the purlin.
[0010] In one possible implementation, both the purlins and the main body of the diagonal beams are rectangular tubular structures.
[0011] In one possible implementation, the length of the U-shaped clamp on the threaded side is greater than the length of the side where the U-shaped clamp connects to the connecting rod.
[0012] In one possible implementation, the length direction of the connecting rod is perpendicular to the length direction of the two sides of the U-shaped clamps; the two bottom angles of the U-shaped clamps are right angles.
[0013] In one possible implementation, the main body of the pressure plate is a rectangular plate-like structure.
[0014] Beneficial effects of this application
[0015] The inclined beams and purlins can be connected by double U-shaped cross buckles and locked by fastening components to achieve a secure connection, eliminating the need for complicated welding procedures and reducing installation time.
[0016] The method of using double U-shaped cross buckles and fastening components for fixing eliminates the need for additional anti-corrosion measures, reducing installation costs. This connection method also better ensures the stability between the purlins and the inclined beams, avoiding the risk of weld failure or breakage at the connection between the inclined beams and purlins due to poor welding quality, thus ensuring the overall stability of the photovoltaic support structure. Attached Figure Description
[0017] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.
[0018] Figure 1 This diagram shows the main structural structure of the purlin assembly structure of the photovoltaic bracket of this application;
[0019] Figure 2 This diagram shows the main structure of the double U-shaped cross buckle of this application;
[0020] Figure 3 This application shows a front view of the U-shaped clamp;
[0021] Figure 4 A schematic diagram of the main structure of the pressure plate of this application is shown;
[0022] Figure 5 A schematic diagram of the main structure of the nut of this application is shown. Detailed Implementation
[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0024] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0027] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0028] Figure 1 This diagram shows the main structural structure of the purlin assembly structure of the photovoltaic bracket of this application; Figure 2 This diagram shows the main structure of the double U-shaped cross buckle of this application; Figure 3 This application shows a front view of the U-shaped clamp; Figure 4 A schematic diagram of the main structure of the pressure plate of this application is shown; Figure 5This application presents a schematic diagram of the main structure of the nut. The application also proposes a purlin assembly structure for a photovoltaic bracket, comprising: a diagonal beam 110, purlins 120, double U-shaped cross buckles 200, and fastening components; the purlins 120 and diagonal beams 110 are placed crosswise, with the length direction of the purlins 120 perpendicular to the length direction of the diagonal beams 110; the purlins 120 and diagonal beams 110 are connected by double U-shaped cross buckles 200; the double U-shaped cross buckles 200 include two oppositely arranged U-shaped clamps 210 and connecting... The rod 220 and the inclined beam 110 pass through the openings of the two U-shaped clamps 210, and the purlin 120 is located between the two U-shaped clamps 210. One end of the two U-shaped clamps 210 is fixedly connected by the connecting rod 220, and the connecting rod 220 abuts against the outer wall of the purlin 120. The other end of the two U-shaped clamps 210 is provided with a threaded structure 211, and the end of the two U-shaped clamps 210 with the threaded structure 211 is connected by a fastening assembly.
[0029] It should be noted that the purlins 120 and the inclined beams 110 provide stable support for the photovoltaic bracket. The cross placement of the purlins 120 and the inclined beams 110 can evenly distribute the external load on the photovoltaic bracket, avoiding damage caused by single-point stress. The purlins 120 and the inclined beams 110 are connected by double U-shaped cross buckles 200 to form a stable structure. By setting double U-shaped cross buckles 200, the stability of the photovoltaic bracket is enhanced, ensuring that the connection between the purlins 120 and the inclined beams 110 is firm and reliable, preventing the bracket from shaking or deforming due to loose connection. The design of the U-shaped clamp 210 allows it to tightly wrap around the inclined beam 110, thus firmly fixing the inclined beam 110 within the openings of the two U-shaped clamps 210. This prevents the inclined beam 110 from shifting or shaking during use, ensuring its stability. The connecting rod 220 fixes the two opposing U-shaped clamps 210 together, forming a stable cross-shaped buckle structure. This structural connection allows the double U-shaped cross buckle 200 to be used as a single unit, enhancing its structural stability and load-bearing capacity.
[0030] The use of threaded structure 211 and fastening components allows the double U-shaped cross buckle 200 to tightly wrap and fix the inclined beam 110 and purlin 120, preventing them from loosening or falling off during use and ensuring the stability of the overall structure. At the same time, the threaded structure 211 and fastening components make the installation process simpler and more convenient, improving installation efficiency.
[0031] Compared to welding, the connection method of this application allows for a secure connection between the inclined beam 110 and the purlin 120 via double U-shaped cross buckles 200 and locking with fastening components. This eliminates the need for complex welding procedures, reducing installation time. Welded connections require anti-corrosion treatment to extend service life. However, the use of double U-shaped cross buckles 200 and fastening components eliminates the need for additional anti-corrosion measures, reducing installation costs. Furthermore, this connection method better ensures the stability between the purlin 120 and the inclined beam 110, avoiding the risk of weld breakage or breakage at the connection point due to poor welding quality, thus ensuring the overall stability of the photovoltaic support structure.
[0032] In one possible implementation, such as Figure 1 As shown, the main body of both the purlin 120 and the inclined beam 110 is a rectangular tubular structure. It should be noted that the rectangular tubular structure increases the stability of the purlin 120 and the inclined beam 110, helps to reduce the burden on the foundation structure, and the rectangular structure is easy to standardize and manufacture, reducing installation costs.
[0033] In one possible implementation, such as Figure 1 , Figure 4 Figure 5 As shown, the fastening assembly includes a pressure plate 300 and two nuts 320; one end of each of the two U-shaped clamps 210 with a threaded structure 211 passes through the pressure plate 300 and the pressure plate 300 is tightly fitted to the outer wall of the purlin 120; the threaded structure 211 of the two U-shaped clamps 210 matches the threaded structure of the two nuts 320, the U-shaped clamps 210 and the nuts 320 are threadedly connected, and the two nuts 320 are located on the side of the pressure plate 300 away from the purlin 120.
[0034] It should be noted that the pressure plate 300, as part of the fastening assembly, is set through the threaded structure 211 of the two U-shaped clamps 210 and is tightly fitted to the outer wall of the purlin 120. The pressure plate 300 provides additional support for the purlin 120. When the nut 320 is tightened, a strong clamping force is generated between the pressure plate 300 and the U-shaped clamps 210, thereby firmly fixing the purlin 120 and the inclined beam 110 within the double U-shaped cross buckle 200. In this connection method, due to the tight fit between the pressure plate 300 and the outer wall of the purlin 120, the pressure and stress borne by the purlin 120 can be dispersed to a certain extent. The pressure is evenly transmitted to the entire cross section of the purlin 120, thereby reducing the risk of local stress concentration.
[0035] Further, such as Figure 4As shown, the main body of the pressure plate 300 is a rectangular plate structure. The rectangular plate structure of the pressure plate 300 can increase the contact area between the nut 320 and the purlin 120, effectively dispersing the pressure generated by the nut 320 and avoiding deformation or damage to the purlin 120 due to excessive local stress. Two mounting holes 310 are symmetrically opened on the pressure plate 300. The distance between the two mounting holes 310 is the same as the distance between the two U-shaped clamps 210. The mounting holes 310 and the U-shaped clamps 210 are matched with the threaded structure 211. The edges of the two U-shaped clamps 210 with the threaded structure 211 pass through the two mounting holes 310 respectively. By setting the mounting holes 310, it is ensured that the two U-shaped clamps 210 can be accurately aligned and fixed on the pressure plate 300 during installation, avoiding loosening or displacement of the two U-shaped clamps 210 due to improper installation.
[0036] In one possible implementation, the distance between the two U-shaped clamps 210 is determined by the width of the purlin 120 plus 2-3 mm, the length of the connecting rod 220, and the distance between the two mounting holes 310 being equal to the distance between the two U-shaped clamps 210.
[0037] In one possible implementation, such as Figure 3 As shown, the length h1 of the U-shaped clamp 210 on the side with the threaded structure 211 is greater than the length h2 of the side of the U-shaped clamp 210 connected to the connecting rod 220. It should be noted that the shorter end h1 of the U-shaped clamp 210 cooperates with the connecting rod 220 to tightly fix the purlin 120 and the inclined beam 110 within the double U-shaped cross buckle 200. This prevents the inclined beam 110 and purlin 120 from shaking or loosening due to the excessive length of the U-shaped clamp 210, thereby enhancing the stability and reliability of the connection. The longer end h1 of the U-shaped clamp 210 can provide a larger clamping range and contact area. Due to different production batches, there are certain dimensional errors in the purlin 120 and inclined beam 110 of different batches. This design allows the U-shaped clamp 210 to flexibly adapt to different batches of purlin 120 and inclined beam 110. The U-shaped clamp 210 of the double U-shaped cross buckle 200 can provide sufficient clamping force to ensure a stable connection between the inclined beam 110 and purlin 120. Meanwhile, the longer end of the U-shaped clamp 210 provides sufficient operating space for the fastening components, making it easier for installers to use tools for installation or disassembly, thus improving work efficiency.
[0038] Preferably, the difference between the length h1 of the side of the U-shaped clamp 210 with the threaded structure 211 and the length h2 of the end of the U-shaped clamp 210 connected to the connecting rod 220 is 3cm, and the length h3 of the threaded structure 211 of the U-shaped clamp 210 is 5cm.
[0039] In one possible implementation, such as Figure 3 As shown, the length direction of the connecting rod 220 is perpendicular to the length direction of the two sides of the U-shaped clamps 210; the two base angles α formed by the two sides of the U-shaped clamps 210 and the bottom edge of the U-shaped clamps 210 are right angles.
[0040] It should be noted that the length direction of the connecting rod 220 is perpendicular to the length directions of the two U-shaped clamps 210, allowing the connecting rod 220 to better fit against the outer wall of the purlin 120. When subjected to external forces, the connecting rod 220 can more effectively disperse and resist these forces, thereby enhancing the stability of the overall structure. Furthermore, due to the perpendicular relationship between the connecting rod 220 and the U-shaped clamps 210, the U-shaped clamps 210 have good support capabilities in multiple directions, preventing vibration during use. The relative displacement between the inclined beam 110 and the purlin 120 caused by movement or impact ensures the stability of the overall structure. The two sides and the bottom of the U-shaped clamp 210 are set at right angles. This right angle setting allows the U-shaped clamp 210 to better fit the outer wall of the inclined beam 110 when tightened, enabling the U-shaped clamp 210 to evenly distribute the force when bearing vertical and horizontal loads. This prevents the double U-shaped cross buckle 200 from loosening or falling off during use, ensuring the load-bearing capacity and reliability of the overall structure. At the same time, the right angle setting of the main body of the U-shaped clamp 210 helps to evenly provide a reliable tightening force to the purlin 120 and the inclined beam 110 when tightening the nut 320, preventing the purlin 120 and the inclined beam 110 from loosening or displacing during use.
[0041] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A purlin assembly structure for a photovoltaic support, characterized in that: include: diagonal beams, purlins, double U-shaped cross buckles and fastening components; The purlins are placed crosswise with the oblique beams, and the length direction of the purlins is perpendicular to the length direction of the oblique beams; The purlin and the diagonal beam are connected by the double U-shaped cross buckle; The double U-shaped cross buckle comprises two U-shaped hoops and a connecting rod arranged opposite to each other, the oblique beam penetrates into the openings of the two U-shaped hoops, and the purlin is located between the two U-shaped hoops; one end of the two U-shaped hoops is fixedly connected by the connecting rod, and the connecting rod abuts against the outer side wall of the purlin. The other ends of the two U-shaped clamps are each provided with a threaded structure, and the ends of the two U-shaped clamps provided with the threaded structure are connected through the fastening assembly.
2. The purlin assembly structure of the photovoltaic support according to claim 1, characterized in that: The fastening assembly includes a pressing plate and two nuts; One end of the two U-shaped clamps with a threaded structure passes through the pressing plate, and the pressing plate is tightly fitted with the outer side wall of the purlin; The threaded structures of the two U-shaped clamps match the internal threaded structures of the two nuts, the U-shaped clamps are threadedly connected to the nuts, and the two nuts are located on a side of the pressure plate away from the purlin.
3. The purlin assembly structure of the photovoltaic support according to claim 1, characterized in that: The main bodies of the purlins and the oblique beams are both rectangular tubular structures.
4. The purlin assembly structure of the photovoltaic support according to claim 2, characterized in that: The length of the U-shaped clamp at a side where the threaded structure is provided is greater than the length of the U-shaped clamp at a side where the U-shaped clamp is connected to the connecting rod.
5. The purlin assembly structure of the photovoltaic support according to claim 4, characterized in that: The length direction of the connecting rod is perpendicular to the length directions of the two side edges of the two U-shaped clamps; The two bottom angles of the U-shaped clamp are right angles.
6. The purlin assembly structure of the photovoltaic support according to claim 2, characterized in that: The main body of the pressing plate is a rectangular plate-shaped structure.