Large-span photovoltaic support structure capable of being rapidly assembled

Abstract

The utility model discloses a large-span photovoltaic support structure capable of being rapidly assembled, which comprises an inclined frame used for installing a photovoltaic panel, and the inclined frame is erected at the upper end of a stand column through a bearing structure; each bearing structure comprises more than two vertical supporting rods; all the vertical supporting rods are evenly distributed and fixed around the corresponding stand columns through hoops, the upper ends of the vertical supporting rods are connected with the positions, close to the middle, of the corresponding inclined frames, and the lower ends of the vertical supporting rods are connected with inclined supports. The upper end of each inclined support inclines towards the outer side of the corresponding stand column, forms an included angle smaller than 90 degrees with the stand column and the corresponding upper vertical supporting rod, and is connected with the position, close to the edge, of the inclined frame. According to the utility model, the stability and firmness of the photovoltaic support can be realized under the condition of ensuring low cost and convenient installation.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic, and particularly relates to a large-span photovoltaic support structure capable of being rapidly assembled. Background Art

[0002] In a large-span photovoltaic support system, due to the increase in the load area, the bearing capacity of the support nodes becomes a key design element. As a result, in the traditional single-pile plus single-column, and single-pile plus double-column support schemes, when dealing with large spans and high wind loads, there are often problems of insufficient local bearing capacity at the nodes, especially when thin-walled steel is used as the main component, this problem is particularly prominent.

[0003] In the structural design of a photovoltaic support, the support mainly consists of components such as columns, diagonal braces, and diagonal beams, and forms a stable structural system through bolt connections. Wind load is an important factor affecting the safety of the support. The impact of wind load on the nodes will cause local stress concentration at the bolt connection parts, resulting in a decrease in the bearing capacity of the thin-walled steel at these parts. Especially in areas with large wind loads, the stress at each node increases significantly, leading to prominent problems of hole wall bearing, and often problems such as local deformation or bolt loosening, which in turn cause structural instability. Especially for large-span supports, the wind load increases exponentially with the increase in the span of the support, making the bearing problem at the nodes even more prominent.

[0004] Existing photovoltaic supports usually set purlins on the diagonal beams of the support according to the installation width of the photovoltaic modules to support the weight of the photovoltaic modules. The columns are fixed to the pile heads of precast pipe piles in the form of end plate welding, and the front and rear diagonal braces are connected to the hoop and the diagonal beam, and the hoop is fixed to the precast pipe pile.

[0005] In low areas with large wind loads, when considering the gust factor and the local shape factor of wind load, the forces at each node of the large-span support increase significantly.

[0006] However, if a thick wall or welded structure is adopted, it will lead to a significant increase in construction costs and an extension of the construction period.

[0007] Therefore, how to achieve the stable and firm photovoltaic support under the conditions of ensuring low cost and convenient installation has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0008] In view of the above-mentioned defects of the prior art, the utility model provides a large-span photovoltaic support structure capable of being rapidly assembled, and the achieved purpose is to achieve the stable and firm photovoltaic support under the conditions of ensuring low cost and convenient installation.

[0009] To achieve the above object, the utility model discloses a large-span photovoltaic support structure capable of rapid assembly, including an inclined frame for installing photovoltaic panels, and the inclined frame is erected on the upper end of a column through a bearing structure;

[0010] The bearing structures all include more than two vertical support rods;

[0011] All the vertical support rods are uniformly fixed around the corresponding columns through hoop fasteners, and the upper ends are all connected to the positions near the middle of the corresponding inclined frames, and the lower ends are all connected to an inclined support;

[0012] The upper end of each inclined support inclines towards the outside of the corresponding column, and forms an angle less than 90 degrees with the column and the corresponding upper vertical support rod, and is connected to the position near the edge of the inclined frame.

[0013] Preferably, the inclined frame is a grid-shaped rectangular frame formed by cross-splicing a plurality of inclined beams and a plurality of purlins, and includes a plurality of intersection points formed by the intersection of the inclined beams and the purlins.

[0014] More preferably, it includes a plurality of the columns, and for each column, the bearing structure only has two vertical support rods and two inclined supports;

[0015] The two vertical support rods and the two inclined supports of each column are symmetrically arranged on both sides of the column, and the upper ends are all connected to the same inclined beam.

[0016] More preferably, the bearing structure of the column includes four vertical support rods and four inclined supports;

[0017] The upper ends of the four vertical support rods are respectively connected to all the intersection points located outside the column, and the corresponding inclined beams and the corresponding purlins are all located outside the column and are the four intersection points closest to the column;

[0018] The upper ends of the four inclined supports are respectively connected to the positions near the four corners of the inclined frame.

[0019] Preferably, each vertical support rod and the corresponding hoop fastener are connected by bolts.

[0020] Preferably, the vertical support rods and the inclined supports are all channel steels;

[0021] Reinforcing connecting pieces are arranged at the connection positions of each vertical support rod and the corresponding inclined support;

[0022] Each of the strong connecting members includes a first groove structure matching the shape of the vertical support rod and a second groove structure matching the shape of the inclined support. The first groove structure and the second groove structure are respectively connected to the corresponding vertical support rod and the corresponding inclined support.

[0023] More preferably, between each of the first groove structures and the corresponding vertical support rod, between each of the second groove structures and the corresponding inclined support, and between each of the first groove structures and the corresponding second groove structures, they are all fixed by bolts.

[0024] Advantages of the present utility model:

[0025] The application of the present utility model can achieve the stability and firmness of the photovoltaic bracket while ensuring low cost and convenient installation.

[0026] The following will further illustrate the concept, specific structure and technical effects generated by the present utility model in conjunction with the drawings to fully understand the purpose, features and effects of the present utility model. Brief Description of the Drawings

[0027] Figure 1 Schematic structural diagram showing an embodiment of the present utility model.

[0028] Figure 2 Schematic side view structure diagram of the load-bearing structure in an embodiment of the present utility model.

[0029] Figure 3 Schematic top view structure diagram showing that the load-bearing structure in an embodiment of the present utility model includes two vertical support rods and two inclined supports.

[0030] Figure 4 Schematic top view structure diagram showing that the load-bearing structure in an embodiment of the present utility model includes four vertical support rods and four inclined supports.

[0031] Figure 5 Schematic structural diagram of the strengthening connecting member between the vertical support rod and the corresponding inclined support in an embodiment of the present utility model.

[0032] Figure 6 Schematic structural diagram of the first groove structure or the second groove structure in an embodiment of the present utility model.

[0033] Figure 7 Schematic structural diagram of the connection between the first groove structure or the second groove structure and the corresponding vertical support rod or the corresponding inclined support in an embodiment of the present utility model. Detailed Description of the Preferred Embodiments

[0034] Embodiment

[0035] As shown Figures 1 to 4 in the figure, a large-span photovoltaic support structure capable of rapid assembly includes an inclined frame 2 for installing a photovoltaic panel 1. The inclined frame 2 is erected on the upper end of a column 3 through a bearing structure 5;

[0036] The bearing structure 5 includes more than two vertical support rods 51;

[0037] All the vertical support rods 51 are uniformly fixed around the corresponding column 3 through hoop clamps 52, and the upper ends are all connected to the positions near the middle of the corresponding inclined frame. The lower ends are all connected to an inclined support 53;

[0038] The upper end of each inclined support 53 inclines towards the outside of the corresponding column 3, forming an angle less than 90 degrees with the column 3 and the corresponding upper vertical support rod 51, and is connected to the position near the edge of the inclined frame 2.

[0039] In the utility model, the vertical support rods 51 are arranged by using hoop clamps 52, and the inclined frame 2 formed by cross-splicing multiple inclined beams 21 and multiple purlins 22 and the vertical support rods 51 are connected through the inclined supports 53. The wind loads borne by the photovoltaic panel 1 and the inclined frame 2 are transmitted to the column through the bearing structure 5 and its hoop clamps 52, and then transmitted to the pile foundation, so that the overall structure of the photovoltaic support forms a stable wind-resistant structure with an unchanged geometric structure.

[0040] In some embodiments, the inclined frame 2 is a grid-shaped rectangular frame formed by cross-splicing multiple inclined beams 21 and multiple purlins 22, including multiple intersection points formed by the intersection of the inclined beams 21 and the purlins 22.

[0041] In some embodiments, it includes multiple columns 3, and each column 3 has only two vertical support rods 51 and two inclined supports 53 in the bearing structure 5;

[0042] The two vertical support rods 51 and the two inclined supports 53 of each column 3 are symmetrically arranged on both sides of the column 3, and the upper ends are all connected to the same inclined beam 21.

[0043] In some embodiments, the bearing structure 5 of the column 3 includes four vertical support rods 51 and four inclined supports 53;

[0044] The upper ends of the four vertical support rods 51 are respectively connected to all the intersection points located outside the column 3. The corresponding inclined beams 21 and the corresponding purlins 22 are all located outside the column 3 and are the four intersection points closest to the column 3;

[0045] The upper ends of the four inclined supports 53 are respectively connected to the positions near the four corners of the inclined frame 2.

[0046] In some embodiments, each vertical support rod 51 is connected to the corresponding hoop clamp 52 through bolts.

[0047] As Figures 5 to 7 shown, in some embodiments, both the vertical support rod 51 and the inclined support 53 are channel steels;

[0048] At each position where each vertical support rod 51 is connected to the corresponding inclined support 53, a strengthening connecting piece 4 is provided;

[0049] Each strengthening connecting piece 4 includes a first groove structure 41 matching the outer shape of the vertical support rod 51 and a second groove structure 42 matching the outer shape of the inclined support 53, and is connected to the corresponding vertical support rod 51 and the corresponding inclined support 53 through the first groove structure 41 and the second groove structure 42 respectively.

[0050] For the present utility model, at each position where each vertical support rod 51 and the corresponding inclined support 53 are connected and where the local bearing pressure of the bolt does not meet the requirements, a strengthening connecting piece 4 is provided;

[0051] The strengthening connecting piece 4 is made of a material and has a thickness matching that of the main member to ensure that it jointly resists wind loads with the main member.

[0052] The strengthening connecting piece 4 is applicable to various large-span photovoltaic support systems, especially supports using thin-walled steel as the main member. Whether it is a single-pile + single-column or single-pile + double-column scheme, the bearing capacity of the node can be improved by installing the strengthening connecting piece 4.

[0053] In some embodiments, between each first groove structure 41 and the corresponding vertical support rod 51, between each second groove structure 42 and the corresponding inclined support 53, and between each first groove structure 41 and the corresponding second groove structure 42, they are all fixed by bolts.

[0054] The strengthening connecting piece 4 is fixed to the corresponding vertical support rod 51 or the corresponding inclined support 53 by bolts to form a tight connection. During the installation process, first determine the position of the node to be strengthened, then select a suitable strengthening connecting piece 4 according to the node type and size. Then, accurately place the strengthening connecting piece 4 on the corresponding vertical support rod 51 or the corresponding inclined support 53 and fasten it with bolts. This installation method is simple and fast, without the need for major modifications to the original support structure, reducing the construction difficulty and cost.

[0055] The local bearing capacity of the connection point between the corresponding vertical support rod 51 and the corresponding inclined support 53 is improved by the strengthening connecting piece 4 with an outsourcing structure. The strengthening connecting piece 4 and the corresponding vertical support rod 51 or the corresponding inclined support 53 jointly bear the wind load, effectively dispersing the stress concentration phenomenon at the node and avoiding the damage caused by excessive bearing pressure on the hole wall. At the same time, the design of the strengthening connecting piece 4 also takes into account the requirements of the stiffness and stability of the node, ensuring the overall performance of the support system.

[0056] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field according to the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A large-span photovoltaic support structure capable of rapid assembly, comprising an inclined frame (2) for installing a photovoltaic panel (1); characterized in that, The inclined frame (2) is erected at the upper end of the column (3) through a bearing structure (5); The bearing structures (5) each include more than two vertical support rods (51); All the vertical support rods (51) are evenly fixed around the corresponding columns (3) through hoop fasteners (52), and the upper ends are all connected to the positions near the middle of the corresponding inclined frames, and the lower ends are all connected to an inclined support (53); The upper end of each inclined support (53) inclines outward from the corresponding column (3), forming an angle less than 90 degrees with the column (3) and the corresponding upper vertical support rod (51), and is connected to the position near the edge of the inclined frame (2).

2. The large-span photovoltaic support structure capable of rapid assembly according to claim 1, wherein, The inclined frame (2) is a grid-shaped rectangular frame formed by cross-splicing multiple inclined beams (21) and multiple purlins (22), including a plurality of intersection points formed by the intersection of the inclined beams (21) and the purlins (22).

3. The large-span photovoltaic support structure capable of rapid assembly according to claim 2, characterized in that, There are multiple columns (3), and each column (3) has only two vertical support rods (51) and two inclined supports (53) in its bearing structure (5); The two vertical support rods (51) and the two inclined supports (53) of each column (3) are symmetrically arranged on both sides of the column (3), and the upper ends are all connected to the same inclined beam (21).

4. The large-span photovoltaic support structure capable of rapid assembly according to claim 2, characterized in that, The bearing structure (5) of the column (3) includes four vertical support rods (51) and four inclined supports (53); The upper ends of the four vertical support rods (51) are respectively connected to four intersection points closest to the column (3) among all the intersection points located outside the column (3), where the corresponding inclined beams (21) and the corresponding purlins (22) are all located outside the column (3); The upper ends of the four inclined supports (53) are respectively connected to the positions near the four corners of the inclined frame (2).

5. The large-span photovoltaic support structure capable of rapid assembly according to claim 1, wherein Each vertical support rod (51) is connected to the corresponding hoop fastener (52) through bolts.

6. The large-span photovoltaic support structure capable of rapid assembly according to claim 1, wherein The vertical support rods (51) and the inclined supports (53) are both channel steels; A reinforcing connecting member (4) is provided at the connection position of each vertical support rod (51) and the corresponding inclined support (53); Each reinforcing connecting member (4) includes a first groove structure (41) matching the outer shape of the vertical support rod (51) and a second groove structure (42) matching the outer shape of the inclined support (53), and is connected to the corresponding vertical support rod (51) and the corresponding inclined support (53) through the first groove structure (41) and the second groove structure (42) respectively.

7. The large-span photovoltaic support structure capable of rapid assembly according to claim 6, characterized in that, Between each first groove structure (41) and the corresponding vertical support rod (51), between each second groove structure (42) and the corresponding inclined support (53), and between each first groove structure (41) and the corresponding second groove structure (42), they are all fixed through bolts.

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