A photovoltaic support base structure

Abstract

This utility model relates to the field of photovoltaic support technology, specifically disclosing a photovoltaic support base structure, including a base, supporting components, and connecting components. The base is composed of four square base plates symmetrically spliced ​​together in a cross shape, with mounting brackets of decreasing height on the inner side of each base plate to achieve a layered fit. The supporting components include a vertically set central column and a cross-shaped square tube at its bottom. The connecting components penetrate through the central column, the cross-shaped square tube, and the mounting brackets, locking all components together at once. This structure, through the cross splicing of the four base plates and the layered design of the stepped brackets, combined with the overall fastening of the through-type connecting components, forms a stable load-bearing system without the need for concrete pouring. After the base is embedded, it has excellent anti-overturning performance and can be completely disassembled and reused after the project is completed. Compared with traditional concrete foundations, it effectively solves the problems of resource waste and construction waste, realizing the recyclability of photovoltaic support bases.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, specifically a photovoltaic support base structure. Background Technology

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy. The importance of photovoltaic support structures is paramount in the entire photovoltaic power station system. The design and installation of the entire matrix directly affect the power generation and stability of the photovoltaic power station. Therefore, the selection of support bases is particularly important.

[0003] For example, the existing utility model patent CN211405952U proposes an adjustable photovoltaic support base. This utility model consists of two aluminum alloy bases with upright plates, which are fixed on a concrete base to form an adjustable base structure. The horizontal position can be finely adjusted by using the adjustable waist-shaped holes on the base plate, and the height of the column can be continuously adjusted by cooperating with the vertical waist-shaped holes on the upright plates and the column fixing holes.

[0004] In the aforementioned technical solutions, the photovoltaic power station support base typically uses cast-in-place or precast concrete foundations. While these foundations offer good stability, they also have significant limitations: once cast, they bond tightly to the site soil, making them difficult to dismantle entirely after the project is completed. They often end up being broken up and discarded, resulting in wasted resources, the generation of large amounts of construction waste, and increased difficulty and cost of subsequent site restoration. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a photovoltaic support base structure, which aims to solve the problems of photovoltaic support bases being difficult to dismantle as a whole, resulting in resource waste and increased construction waste.

[0006] A photovoltaic support base structure includes a base, a support member, and a connector, wherein, The base includes four square base plates and mounting plates; The four square base plates are joined together in a cross-shaped symmetrical manner to form the base; The mounting brackets include four, which are respectively fixed to the inner corners of the four square base plates facing the center of the base. The height of the four mounting brackets is set in a stepped manner so that they can be stacked and matched when the four square base plates are assembled. The support includes a central column and a cross-shaped square tube. The central column is a cylindrical structure and is vertically positioned at the center of the base. The cross-shaped square tube is fixedly installed at the bottom of the central column. The connector is located inside the central column, with its bottom end passing through a cross-shaped square tube and four mounting plates in sequence, used to fasten the cross-shaped square tube and the mounting plates together as one unit.

[0007] Optionally, the connector includes a central screw, an upper fastening nut, and a lower fastening nut, wherein, The central screw is coaxially disposed inside the central column, and its bottom end extends to form an external thread section. The middle part of the cross-shaped square tube is provided with a first mounting hole corresponding to the central screw. The four mounting plates are respectively provided with a second mounting hole coaxial with the first mounting hole at their corresponding positions. The upper fastening nut is set on the upper surface of the cross-shaped square tube and cooperates with the upper end of the central screw; The lower fastening nut is located on the bottom surface of the lowest mounting plate and is threadedly connected to the external thread section.

[0008] Optionally, the connector also includes a hexagonal head located on top of the central screw for workers to perform disassembly and assembly operations.

[0009] Optionally, the top of the central screw extends upward and protrudes from the top of the central column, forming an exposed operating part for workers to perform disassembly and assembly operations from outside the central column.

[0010] Optionally, the square base plate is provided in the form of a groove with an open top to reduce the weight of the base plate.

[0011] Optionally, the base also includes a plurality of reinforcing ribs, which are disposed in the openings of the square base plate to increase the strength of the square base plate.

[0012] Optionally, the support member further includes a connecting sleeve and a connecting rod, wherein, The connecting sleeve is coaxially fixed to the top of the central column and is used to be inserted into the bottom of the photovoltaic bracket to form an internal seal. The connecting rods include multiple rods, which are evenly distributed around the top of the central column and located outside the connecting sleeve, for connecting the photovoltaic bracket.

[0013] Optionally, the connecting rod includes a rod body, a limiting nut, and a fixing nut, wherein, The bottom of the rod is fixed to the outer perimeter of the top of the central column; The limiting nut is fixed in the middle of the rod body, and its top height is lower than the top of the connecting sleeve, forming a grouting gap with the bottom of the photovoltaic bracket. The insertion of the connecting sleeve into the bottom of the photovoltaic bracket forms an internal seal to prevent grout from leaking into the center column. The fixing nut is used to lock the photovoltaic bracket.

[0014] Optionally, it also includes support columns, of which there are four. The support columns are evenly distributed around the central column. The bottom of each support column is detachably connected to the corresponding square base plate, and the top of each support column is inclined toward the central column and detachably connected to the top of the central column.

[0015] This utility model also provides a photovoltaic support bracket, characterized in that it includes the aforementioned photovoltaic support bracket base.

[0016] Compared with the prior art, the photovoltaic support base structure provided by this utility model has the following advantages: (1) By splicing four square base plates in a cross-shaped symmetrical manner and layering them with stepped mounting plates, and then locking them together with a central column, a cross-shaped square tube and a through-type connector, the base can form an integral load-bearing structure on site without concrete. After the base is buried, it ensures sufficient stability and anti-overturning ability, and can be disassembled and reused after the project is completed. This solves the problem of resource waste and construction waste caused by the traditional concrete foundation's "one-time molding and crushing and disposal".

[0017] (2) The cross square tube and the stepped bracing plate are connected into a whole by the central screw and nut locking structure. With the exposed hexagonal head, quick disassembly and assembly can be achieved, greatly shortening the installation and recycling time. The trough-shaped lightweight base plate further reduces the difficulty of transportation and hoisting. At the same time, detachable diagonal bracing columns are set to form triangular reinforcement around the base plate, which does not rely on concrete counterweight and improves wind and pull-out resistance. The whole structure can be completely disassembled and reassembled in a different location after the project is completed, eliminating the breakage and abandonment of traditional foundations and achieving maximum resource recycling.

[0018] (3) By combining the connecting sleeve and connecting rod at the top of the central column, the triple measures of sealing inside the sleeve, reserving grouting gap with the limiting nut, and locking the fixing nut twice can be used to ensure that the photovoltaic support column can be grouted and cured after insertion, forming a high-strength, non-shaking and water-proof joint. This ensures long-term wind vibration resistance and allows for overall recycling by loosening the fixing nut and pulling out the column during disassembly, fully taking into account both structural performance and recycling requirements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic support base structure according to the present invention; Figure 2 for Figure 1 Sectional view along line AA; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the installation of the central screw and the base of a photovoltaic support base structure according to this utility model; Figure 6 This is a schematic diagram showing the disassembled base of a photovoltaic support base structure according to this utility model.

[0020] In the diagram: 1. Base; 101. Second mounting hole; 11. Square base plate; 12. Mounting plate; 13. Reinforcing rib; 2. Support component; 201. First mounting hole; 21. Central column; 22. Cross-shaped square tube; 23. Connecting sleeve; 24. Connecting rod; 241. Rod body; 242. Limiting nut; 243. Fixing nut; 3. Connecting component; 31. Central screw; 32. Upper fastening nut; 33. Lower fastening nut; 34. Hexagonal head; 4. Support column; 5. Photovoltaic bracket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 the embodiments of this utility model and 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 the embodiments of this utility model.

[0024] 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.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] Please see Figures 1-6 The present application proposes a photovoltaic support base structure, which includes a base 1, a support member 2, and a connector 3.

[0028] like Figures 1-6 As shown, the base 1 includes four square base plates 11 and mounting plates 12; the four square base plates 11 are spliced ​​together in a cross-shaped symmetrical manner to form the base 1; there are four mounting plates 12, which are respectively fixed at the inner corners of the four square base plates 11 facing the center of the base 1, and the height of the four mounting plates 12 is set in a stepped manner so that they can be stacked and matched with each other when the four square base plates 11 are spliced; the support member 2 includes a central column 21 and a cross-shaped square tube 22, the central column 21 is a cylindrical structure and is vertically set at the center of the base 1; the cross-shaped square tube 22 is fixed at the bottom of the central column 21; the connector 3 is set inside the central column 21, and its bottom end passes through the cross-shaped square tube 22 and the four mounting plates 12 in sequence, so as to fasten the cross-shaped square tube 22 and the mounting plates 12 into a whole.

[0029] Specifically, during on-site implementation, four prefabricated square base plates 11 are first arranged symmetrically in a cross shape. The stepped mounting brackets 12 at their inner corners are then stacked naturally from top to bottom to form a tightly interlocking base plate assembly. The central column 21, along with the cross-shaped square tube 22 at its bottom, is placed vertically in the center of the base plate. Then, the connector 3 is inserted from the inside of the central column 21, passing through the cross-shaped square tube 22 and the four layers of brackets, and locked in place to complete the base assembly. The assembled base is buried underground, and its top is connected to the photovoltaic support 5. Since the overall load-bearing structure can be achieved without pouring concrete, after the project is completed, the square base plate 11 and the cross-shaped square tube 22 can be completely disassembled simply by loosening the connector 3 in the opposite direction. All components can be reused in other locations, completely eliminating the problems of broken waste and construction waste, and significantly reducing the later site restoration costs.

[0030] In some embodiments, such as Figures 2-4 As shown, the connector 3 includes a central screw 31, an upper fastening nut 32, and a lower fastening nut 33. The central screw 31 is coaxially disposed inside the central column 21, and its bottom end extends to form an external thread section. A first mounting hole 201 is provided in the middle of the cross-shaped square tube 22 corresponding to the central screw 31. The four mounting plates 12 are respectively provided with second mounting holes 101 coaxial with the first mounting hole 201 at corresponding positions. The upper fastening nut 32 is disposed on the upper surface of the cross-shaped square tube 22 and cooperates with the upper end of the central screw 31. The lower fastening nut 33 is disposed on the bottom surface of the lowest mounting plate 12 and is threadedly connected to the external thread section.

[0031] Specifically, during implementation, the central screw 31 first passes through the central column 21, and then sequentially passes through the first mounting hole 201 of the cross-shaped square tube 22 and the second mounting hole 101 of the four-layer bracket. The upper fastening nut 32 and the lower fastening nut 33 form a counter-pull structure. A limit block can be set at the corresponding upper fastening nut 32 of the central screw 31 to assist in locking. The stepped mounting bracket 12 is pressed down step by step, and the force is evenly transmitted to the four square base plates 11, so that the entire base can be quickly locked. When disassembling, only the central screw 31 needs to be loosened to release all constraints. With the aforementioned reusable square base plates 11 and central column 21, quick disassembly and reassembly in different locations can be achieved, further shortening the construction period and saving labor.

[0032] In some embodiments, such as Figures 2-4 As shown, the connector 3 also includes a hexagonal head 34, which is located on the top of the central screw 31 and is used by the operator for disassembly and assembly operations; the top of the central screw 31 extends upward and protrudes from the top of the central column 21 to form an exposed operating part, which is used by the operator for disassembly and assembly operations from the outside of the central column 21.

[0033] Specifically, during on-site implementation, the hexagonal head 34 and the central screw 31 are prefabricated as a single unit, so that the top of the screw has both a hexagonal wrench face and an extended section that is significantly higher than the top of the central column 21. During the assembly stage, workers only need to use a regular wrench to clamp the hexagonal head 34 to tighten the central screw 31, without the need for a special long socket or hydraulic tools. When the photovoltaic bracket 5 is already installed and the surrounding space is limited, the exposed operating part can still be directly accessed by the wrench from the side or top, achieving non-destructive tightening and loosening. This design combines "tool universality" with "space accessibility", significantly shortening the time for installation, angle adjustment, dismantling, and reinstallation in different locations, truly realizing the overall goal of rapid disassembly and reusability.

[0034] In some embodiments, such as Figures 5-6 As shown, the square base plate 11 is arranged in a groove shape with an opening at the top to reduce the weight of the base plate; at the same time, the base 1 also includes a plurality of reinforcing ribs 13, which are arranged in the opening of the square base plate 11 to increase the strength of the square base plate 11.

[0035] Specifically, during the manufacturing stage, the square base plate 11 is stamped into a channel shape with an open top, which retains sufficient contact surface with the ground while reducing its weight, facilitating manual handling and reducing transportation costs. Subsequently, multiple longitudinal and transverse reinforcing ribs 13 are welded or integrally formed within the channel cavity. The ribs and the channel wall form a closed load-bearing frame, evenly distributing concentrated loads over a wider area and preventing buckling deformation of the channel section under wind loads or during hoisting. This lightweight integrated structure not only meets the requirements of rapid on-site assembly and reuse but also ensures the strength and stability of the base during long-term service, completely overcoming the shortcomings of traditional concrete foundations that are heavy and non-recyclable.

[0036] In some embodiments, such as Figures 2-4 As shown, the support member 2 also includes a connecting sleeve 23 and a connecting rod 24. The connecting sleeve 23 is coaxially fixed to the top of the central column 21 and is used to be inserted into the bottom of the photovoltaic bracket 5 to form an internal seal. The connecting rod 24 includes multiple rods, which are evenly distributed around the top of the central column 21 and located outside the connecting sleeve 23 for connecting the photovoltaic bracket 5.

[0037] Specifically, during construction, the central column 21 is first vertically positioned, and then the photovoltaic bracket 5 column is directly inserted into the connecting sleeve 23. The inner wall of the sleeve and the outer wall of the bracket form a tight fit, achieving initial positioning and internal sealing. The circumferentially distributed connecting rods 24 serve as radial limits to prevent the column from shaking. This insertion method is completed in one step, without the need for on-site welding or secondary hole alignment, which greatly shortens the installation time and provides stable space for subsequent grouting.

[0038] Among them, such as Figure 4As shown, the connecting rod 24 includes a rod body 241, a limiting nut 242, and a fixing nut 243. The bottom of the rod body 241 is fixedly installed on the top periphery of the central column 21. The limiting nut 242 is fixedly installed in the middle of the rod body 241, and its top height is lower than the top of the connecting sleeve 23, forming a grouting gap between it and the bottom of the photovoltaic bracket 5. The insertion of the connecting sleeve 23 into the bottom of the photovoltaic bracket 5 forms an internal seal to prevent grout from leaking into the interior of the central column 21. The fixing nut 243 is used to lock the photovoltaic bracket 5.

[0039] Specifically, after the column is inserted into the connecting sleeve 23, the limiting nut 242 automatically leaves a uniform grouting gap between the top of the sleeve and the bottom of the column. Then, high-strength mortar is injected into the gap. Under the sealing effect of the connecting sleeve 23, the grout will not flow into the interior of the central column 21, ensuring that the column and the base form an integral rigid node after curing. After the grout reaches the required strength, the fixing nut 243 is tightened for secondary mechanical locking, achieving triple protection of sealing of the connecting sleeve 23, grouting anchoring, and mechanical anti-loosening. This not only improves the wind vibration resistance, but also allows the column to be separated by loosening the fixing nut 243 and breaking the grouting layer during disassembly, keeping the base components intact and recyclable.

[0040] In some embodiments, such as Figure 1 As shown, a photovoltaic support base structure also includes support columns 4. There are four support columns 4, which are evenly distributed around the central column 21. The bottom of each support column 4 is detachably connected to the corresponding square base plate 11, and the top of each support column 4 is inclined towards the central column 21 and detachably connected to the top of the central column 21.

[0041] Specifically, during implementation, the four prefabricated support columns 4 are connected to the corresponding square base plate 11 at their bottoms via bolts or quick-release pins, and their tops are hinged to the top ear plate of the central column 21 at a centripetal angle, forming a stable four-corner pyramidal spatial support system. This system significantly improves the base's resistance to lateral wind loads and pull-out without increasing the concrete counterweight. After the project is completed, the bolts can be removed to completely separate the support columns 4 from the square base plate 11 and the central column 21. All metal components can be packaged and transported to the next power station for continued use, achieving a unified approach of lightweight, high strength, and recyclability.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic support base structure, characterized in that, Includes a base (1), a support (2), and a connector (3), wherein, The base (1) includes four square base plates (11) and mounting plates (12); The four square base plates (11) are spliced ​​together in a cross-shaped symmetrical manner to form the base (1); The mounting brackets (12) include four, which are respectively fixed at the inner corners of the four square base plates (11) facing the center of the base (1), and the height of the four mounting brackets (12) is set in a step-like manner so that they can be stacked and cooperated with each other when the four square base plates (11) are assembled. The support member (2) includes a central column (21) and a cross-shaped square tube (22). The central column (21) is a cylindrical structure and is vertically located at the center of the base (1). The cross-shaped square tube (22) is fixedly located at the bottom of the central column (21). The connector (3) is located inside the central column (21), and its bottom end passes through the cross-shaped square tube (22) and four mounting plates (12) in sequence, which is used to fasten the cross-shaped square tube (22) and the mounting plates (12) into one piece.

2. The photovoltaic support base structure according to claim 1, characterized in that, The connector (3) includes a central screw (31), an upper fastening nut (32), and a lower fastening nut (33), wherein, The central screw (31) is coaxially disposed inside the central column (21), and its bottom end extends to form an external thread section. The middle part of the cross square tube (22) is provided with a first mounting hole (201) corresponding to the central screw (31). The four mounting plates (12) are respectively provided with a second mounting hole (101) coaxial with the first mounting hole (201). The upper fastening nut (32) is set on the upper surface of the cross square tube (22) and cooperates with the upper end of the central screw (31); The lower fastening nut (33) is located on the bottom surface of the lowest mounting plate (12) and is threadedly connected to the external thread section.

3. The photovoltaic support base structure according to claim 2, characterized in that, The connector (3) also includes a hexagonal head (34), which is located on the top of the central screw (31) for workers to perform disassembly and assembly operations.

4. A photovoltaic support base structure according to claim 3, characterized in that, The top of the central screw (31) extends upward and protrudes from the top of the central column (21) to form an exposed operating part, which is used by the staff to perform disassembly and assembly operations from the outside of the central column (21).

5. A photovoltaic support base structure according to claim 1, characterized in that, The square base plate (11) is arranged in a groove shape with an open top to reduce the weight of the base plate.

6. A photovoltaic support base structure according to claim 5, characterized in that, The base (1) also includes a plurality of reinforcing ribs (13), which are disposed in the opening of the square base plate (11) to increase the strength of the square base plate (11).

7. A photovoltaic support base structure according to claim 1, characterized in that, The support member (2) further includes a connecting sleeve (23) and a connecting rod (24), wherein, The connecting sleeve (23) is coaxially fixed to the top of the central column (21) and is used to be inserted into the bottom of the photovoltaic bracket (5) to form an internal seal; The connecting rod (24) includes multiple rods, which are evenly distributed around the top of the central column (21) and located outside the connecting sleeve (23) for connecting the photovoltaic bracket (5).

8. A photovoltaic support base structure according to claim 7, characterized in that, The connecting rod (24) includes a rod body (241), a limiting nut (242), and a fixing nut (243), wherein, The bottom of the rod (241) is fixed to the outer periphery of the top of the central column (21); The limiting nut (242) is fixed in the middle of the rod (241), and its top height is lower than the top of the connecting sleeve (23). A grouting gap is formed between the connecting sleeve (23) and the bottom of the photovoltaic bracket (5). The insertion of the connecting sleeve (23) and the bottom of the photovoltaic bracket (5) forms an internal seal to prevent grout from leaking into the center column (21). The fixing nut (243) is used to lock the photovoltaic bracket (5).

9. A photovoltaic support base structure according to claim 1, characterized in that, It also includes support columns (4), which include four columns. The support columns (4) are evenly distributed around the central column (21). The bottom of each support column (4) is detachably connected to the corresponding square base plate (11). The top of each support column (4) is inclined toward the central column (21) and detachably connected to the top of the central column (21).

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