Steel support and support unit for flat single-shaft photovoltaic panel

Abstract

The invention relates to a steel bracket and a bracket unit for a flat single-shaft photovoltaic panel, and belongs to the technical field of photovoltaic brackets, and the steel bracket comprises an inclined steel column, a supporting steel rod, a column top connecting piece, a column foot connecting piece and a steel column connecting piece; the inclined steel columns are arranged in a herringbone shape, and the length of the steel columns is adjusted through steel column connecting pieces in the middle. The column foot connecting piece is fixed to the top of a foundation and connected with an inclined steel column through a bolt, and a free rotating hinge is formed at the column bottom. The tops of the two inclined steel columns are connected with the column top connecting pieces through bolts; the supporting steel rods are horizontally arranged, and the two ends of each supporting steel rod are fixed to the inclined steel columns. The device is stable in structural form, suitable for flat single-axis photovoltaic projects with the support top height larger than 3 m and capable of being applied to reinforced concrete cast-in-place pile foundations, reinforced concrete prefabricated pipe pile foundations and spiral steel pile foundations.

Description

Technical Field

[0001] The invention relates to a steel bracket and a bracket unit for a flat uniaxial photovoltaic panel, belonging to the technical field of photovoltaic panel brackets. Background Art

[0002] Photovoltaic power generation has become a vital force in future energy development. To better conserve resources and improve land utilization, photovoltaic project support systems have emerged in various forms. Flat single-axis photovoltaic support systems mostly use single-column structures. This type of support system, when tall, requires larger steel columns and foundations to support the load transmitted from the upper photovoltaic modules, increasing material and construction costs. Summary of the Invention

[0003] In order to solve the above problems, the present invention discloses a steel bracket and bracket unit for a flat uniaxial photovoltaic panel, and its specific technical solution is as follows:

[0004] A steel support unit for a flat uniaxial photovoltaic panel comprises an inclined steel column (1), a steel column connector (2), a support rod assembly (3), a column top connector (4), a column foot connector (5) and a ground foundation (7). The inclined steel columns (1) are provided with two, the top ends of the two inclined steel columns (1) being close to each other and connected in an inverted V shape, and the top ends are connected via the column top connector (4).

[0005] The inclined steel column (1) comprises a plurality of root sections, and upper and lower adjacent sections are connected by steel column connectors (2);

[0006] The bottom of the inclined steel column (1) is provided with a column base connector (5), and the column base connector (5) is fixed on a ground foundation (7);

[0007] The support rod assembly (3) is arranged between the two inclined steel columns (1), and the support rod assembly (3) fixes the angle between the two inclined steel columns (1).

[0008] Furthermore, the cross-sectional shape of the steel column connector (2) is consistent with the cross-sectional shape of the inclined steel column (1), and the two adjacent inclined steel columns (1) are respectively inserted into the steel column connector (2) from both ends. The steel column connector (2) and the inclined steel column (1) inserted therein are both provided with a plurality of oblong holes. The oblong holes of the steel column connector (2) and the inclined steel column (1) are aligned, and are tightened and connected by fastening bolts (7) that penetrate from one side of the steel column connector (2) to the other side.

[0009] Furthermore, the column top connector (4) includes a horizontally arranged top plate (43), and two parallel connecting plates a (41) extending downward are arranged on the lower surface of the top plate (43), and each connecting plate a (41) is provided with two horizontal connecting holes a. The top of the inclined steel column (1) is provided with a connecting hole A, and the tops of the two inclined steel columns (1) are symmetrically inserted into the channel between the two connecting plates a (41) from both sides. The connecting hole A at the top of each inclined steel column (1) is aligned with the connecting holes a of the two connecting plates a (41), and they are connected and fixed by connecting bolts passing through the connecting holes a and the connecting holes A.

[0010] Furthermore, a gap is left between the outer side of the connecting plate a (41) and the corresponding edge of the top plate (43), and three equally spaced stiffening plates a (42) are provided on the outer side of each connecting plate a (41), and the two connecting holes a on each connecting plate a (41) are respectively located in the two gaps formed by the three stiffening plates a (42).

[0011] Furthermore, the support rod assembly (3) includes two parallel horizontal support rods arranged in a Z shape and an inclined inclined rod, one horizontal support rod is located above the steel column connector (2), and the other horizontal support rod is located below the steel column connector (2), the upper end of the inclined rod is connected to one end of the horizontal support rod above the steel column connector (2), and the lower end of the inclined rod is connected to one end of the horizontal support rod below the steel column connector (2), and the inclined rod spans and connects the two inclined steel columns (1).

[0012] Furthermore, the column foot connector (5) includes a base plate (53) and two connecting plates b (51) vertically arranged on the upper surface of the base plate, the connecting plate b (51) is provided with a connecting hole b, and the bottom of the inclined steel column (1) is also provided with a connecting hole B, the bottom of the inclined steel column (1) is inserted into the space between the two connecting plates (51), the connecting hole B of the inclined steel column (1) is aligned with the connecting hole b of the connecting plate (51), and a bolt is passed through the connecting hole b and the connecting hole B, and is tightened to connect and fix them;

[0013] A gap is left between the outer side of the connecting plate (51) and the edge of the adjacent bottom plate (53). Two stiffening plates b (52) perpendicular to the connecting plate (51) are arranged on the outer side of the connecting plate (51). The bottom of the stiffening plates b (52) is fixedly connected to the bottom plate (53) and is located on both sides of the connecting hole b.

[0014] Furthermore, the ground foundation (7) is a reinforced concrete cast-in-place pile, a reinforced concrete prefabricated pipe pile or a spiral steel pile;

[0015] When the ground foundation (7) is a reinforced concrete cast-in-place pile, the column foot connector (5) is connected to the reinforced concrete cast-in-place pile via pre-buried bolts;

[0016] When the ground foundation (7) is a reinforced concrete prefabricated pipe pile, the column foot connector (5) is connected to the reinforced concrete prefabricated pile by welding;

[0017] When the ground foundation (7) is a spiral steel pile, the column base connector (5) is connected to the spiral steel pile via flange bolts.

[0018] Furthermore, the inclined steel column (1) is a 80x80x3.0 hot-dip galvanized square tube, the steel column connector (2) is a 90x90x3.0 hot-dip galvanized square tube, and the horizontal support rod and the inclined rod of the support rod assembly (3) are both C60x20x10x2.5 hot-dip galvanized thin-walled curled steel.

[0019] Furthermore, the thickness of the connecting plate a (41) and the connecting plate b (51) is 10 mm, and the thickness of the stiffening plate a (42) and the stiffening plate b (52) is 6 mm.

[0020] A steel bracket for a flat single-axis photovoltaic panel includes several bracket units. A flat single axis is horizontally arranged below the photovoltaic panel. The two ends of the flat axis are arranged at the top of the bracket unit. The bracket unit supports the flat single axis, and the photovoltaic panel can rotate around the flat single axis.

[0021] The beneficial effects of the present invention are:

[0022] When the top height of a flat, single-axis photovoltaic panel mounting bracket exceeds 3 meters, existing single-bracket brackets in the industry lack sufficient strength. Furthermore, the height makes installation difficult and poses significant construction challenges. Reinforcement from both sides, even increasing the diameter of the rebar, results in significant bracket costs and unsatisfactory results. After a period of use, the bracket can become unstable and tilt. Currently, the industry has no effective solution to these problems.

[0023] This patented bracket unit and bracket address this industry challenge. This patented bracket unit and bracket fundamentally break with traditional steel brackets for flat, single-axis photovoltaic panels, offering a completely new bracket design that is unlike any other standard in the industry. This design demonstrates excellent performance in practice, offering stable support, easy construction, a long service life, and enhanced safety. It holds great potential for widespread adoption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention,

[0025] Figure 2 is a schematic diagram of a steel column connector of the present invention,

[0026] Figure 3 1 is a front view of the column top connector of the present invention,

[0027] Figure 4 yes Figure 3 A-direction cross-sectional view,

[0028] Figure 5 This is a front view of the column base connector of the present invention.

[0029] Figure 6 yes Figure 5 The B-direction cross-sectional view in

[0030] List of reference numerals: 1—inclined steel column, 2—steel column connector, 3—support rod assembly, 4—column top connector, 5—column base connector, 6—ground foundation, 7—fastening bolts, 41—connecting plate a, 42—stiffening plate a, 43—top plate, 51—connecting plate b, 52—stiffening plate b, 53—bottom plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0032] This steel support for flat uniaxial photovoltaic panels consists of several support units. A flat uniaxial support is positioned horizontally below the photovoltaic panel. The two ends of the flat uniaxial support are located at the tops of the support units. The support units support the flat uniaxial support, allowing the photovoltaic panel to rotate around the flat uniaxial support. The photovoltaic panel rotates according to the position of the sunlight, so that the panel faces the sunlight.

[0033] Combined with attachment Figure 1-6 As can be seen, the support unit comprises two opposing inclined steel columns 1, their tops abutting each other and connected by a column top connector 4. The bottoms of the inclined steel columns 1 are provided with column foot connectors 5, which are fixed to a ground foundation 6. The ground foundation can be a reinforced concrete cast-in-place pile foundation, a reinforced concrete precast pipe pile foundation, or a screw steel pile foundation. The bottom of the column foot connector 5 is fixed to the surface of the ground foundation 6 or partially cast within the ground foundation 6.

[0034] The cross section of the inclined steel column 1 is rectangular, square or circular. As a more common choice, a rectangular cross section is convenient for production, transportation and installation.

[0035] A support rod assembly 3 is provided between the two inclined steel columns 1 to fix the angle between them. The support rod assembly 3 comprises two parallel horizontal support rods and an inclined rod. One horizontal support rod is located above the steel column connector 2, while the other horizontal support rod is located below the steel column connector 2. The upper end of the inclined rod is connected to one end of the horizontal support rod above the steel column connector 2, while the lower end of the inclined rod is connected to one end of the horizontal support rod below the steel column connector 2. The inclined rod spans and connects the two inclined steel columns 1. The support rod assembly 3 secures the positional relationship between the two inclined steel columns 1, stabilizing the two inclined steel columns 1 and making the support unit more stable.

[0036] The inclined steel column 1 includes a plurality of root sections, and the upper and lower adjacent sections are connected by a steel column connector 2. As an embodiment, the inclined steel column 1 includes two upper and lower sections connected by a steel column connector 2. Further as a specific implementation of the steel column connector 2, the cross-sectional shape of the steel column connector 2 is consistent with the cross-sectional shape of the inclined steel column 1, and the upper and lower adjacent sections of the inclined steel column 1 are respectively inserted into the steel column connector 2 from both ends, and the steel column connector 2 and the inclined steel column 1 inserted therein are provided with a plurality of oblong holes, and the oblong holes of the steel column connector 2 and the inclined steel column 1 are aligned, and are tightened and connected by fastening bolts 7 that penetrate from one side of the steel column connector 2 to the other side.

[0037] A specific embodiment of the column top connector 4 is given below, including a horizontally arranged top plate 43, and two parallel connecting plates a41 extending downward are arranged on the lower surface of the top plate 43, each connecting plate a41 is provided with two horizontal connecting holes a, and a connecting hole A is provided on the top of the inclined steel column 1. The tops of the two inclined steel columns 1 are symmetrically inserted into the channel between the two connecting plates a41 from both sides, and the connecting holes A on the top of each inclined steel column 1 are respectively aligned with the connecting holes a of the two connecting plates a41, and are connected and fixed by connecting bolts passing through the connecting holes a and the connecting holes A.

[0038] A gap is left between the outer sides of the connecting plates a41 and the corresponding edges of the top plate 43. Each connecting plate a41 is equipped with three equally spaced stiffening plates a42. The two connection holes a on each connecting plate a41 are located in the two gaps formed by the three stiffening plates a42. The stiffening plates a42 reinforce and stabilize the connecting plates a41, preventing them from deforming under stress.

[0039] The following is a specific embodiment of the column base connector 5, which includes a base plate 53 and two connecting plates b51 vertically arranged on the upper surface of the base plate. The connecting plate b51 is provided with a connecting hole b, and the bottom of the inclined steel column 1 is also provided with a connecting hole B. The bottom of the inclined steel column 1 is inserted into the space between the two connecting plates 51, and the connecting hole B of the inclined steel column 1 is aligned with the connecting hole b of the connecting plate 51. Bolts are passed through the connecting holes b and B and tightened to connect and fix them.

[0040] A gap is left between the outer edge of the connecting plate 51 and the adjacent edge of the base plate 53. Two perpendicular stiffening plates b52 are positioned on the outer side of the connecting plate 51. The bottoms of the stiffening plates b52 are fixedly connected to the base plate 53 and are located on either side of the connection hole b. The stiffening plates b52 stabilize the connecting plate b51 and prevent deformation under stress, thus maintaining a stable and stable spatial structure for the column base connector 5.

[0041] The following describes the material selection for the present invention. The inclined steel column 1 is constructed of 80x80x3.0 hot-dip galvanized square tubes. The central portion of the inclined steel column 1 is divided into two sections, with bolt holes provided at the junction of the two sections to connect with the steel column connector 2 for adjusting the length of the inclined steel column 1. The ends are connected to the column top connector 4 and column foot connector 5 with M16 bolts. The supporting steel rods 3 are C60x20x10x2.5 hot-dip galvanized thin-walled curled steel sections, arranged in a Z-shape between the inclined steel columns 1. The ends of the supporting steel rods are bolted to the inclined steel columns. Three supporting steel rods are provided: two horizontally arranged and one diagonally arranged.

[0042] like Figure 2 As shown, the steel column connector 2 is a 90x90x3.0 hot-dip galvanized square tube with the same cross-section as the inclined steel column 1. Long circular holes are evenly arranged and connected with M12 bolts.

[0043] like Figure 3 and 4 As shown, the column top connector 4 is provided with two 10 mm thick connecting plates a41, and three stiffening plates a42 are arranged outside the connecting plate surface, and the stiffening plates a42 are 6 mm thick.

[0044] like Figure 5 and 6 As shown, the column base connector 5 is provided with two 10 mm thick connecting plates b51, and two stiffening plates b52 are arranged outside the connecting plate surface, and the stiffening plates b52 are 6 mm thick.

[0045] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as such herein, will not be interpreted in an idealized or overly formal sense.

[0046] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

[0047] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A steel support unit for a flat uniaxial photovoltaic panel, characterized in that: The invention comprises an inclined steel column (1), a steel column connector (2), a support rod assembly (3), a column top connector (4), a column foot connector (5) and a ground foundation (7). The inclined steel columns (1) are provided with two, the top ends of the two inclined steel columns (1) are close to each other, and are connected in an inverted V shape. The top ends are connected by the column top connector (4). The inclined steel column (1) comprises a plurality of root sections, and upper and lower adjacent sections are connected by steel column connectors (2); The bottom of the inclined steel column (1) is provided with a column base connector (5), and the column base connector (5) is fixed on a ground foundation (7); The support rod assembly (3) is arranged between the two inclined steel columns (1), and the support rod assembly (3) fixes the angle between the two inclined steel columns (1).

2. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The cross-sectional shape of the steel column connector (2) is consistent with the cross-sectional shape of the inclined steel column (1), and two adjacent inclined steel columns (1) are inserted into the steel column connector (2) from both ends thereof. The steel column connector (2) and the inclined steel column (1) inserted therein are both provided with a plurality of oblong holes. The oblong holes of the steel column connector (2) and the inclined steel column (1) are aligned, and are tightened and connected by fastening bolts (7) that penetrate from one side of the steel column connector (2) to the other side.

3. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The column top connector (4) includes a horizontally arranged top plate (43), and two parallel connecting plates a (41) extending downward are arranged on the lower surface of the top plate (43). Each connecting plate a (41) is provided with two horizontal connecting holes a. The top of the inclined steel column (1) is provided with a connecting hole A. The tops of the two inclined steel columns (1) are symmetrically inserted into the channel between the two connecting plates a (41) from both sides. The connecting hole A at the top of each inclined steel column (1) is aligned with the connecting holes a of the two connecting plates a (41), and they are connected and fixed by connecting bolts passing through the connecting holes a and the connecting holes A.

4. The steel support unit for a flat uniaxial photovoltaic panel according to claim 3, characterized in that: A gap is left between the outer side of the connecting plate a (41) and the corresponding edge of the top plate (43), and three equally spaced stiffening plates a (42) are provided on the outer side of each connecting plate a (41). The two connecting holes a on each connecting plate a (41) are respectively located in the two gaps formed by the three stiffening plates a (42).

5. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The support rod assembly (3) comprises two parallel horizontal support rods arranged in a Z shape and an inclined inclined rod, one horizontal support rod being located above the steel column connector (2), and the other horizontal support rod being located below the steel column connector (2), the upper end of the inclined rod being connected to one end of the horizontal support rod above the steel column connector (2), and the lower end of the inclined rod being connected to one end of the horizontal support rod below the steel column connector (2), and the inclined rod being connected across the two inclined steel columns (1).

6. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The column foot connector (5) includes a bottom plate (53) and two connecting plates b (51) vertically arranged on the upper surface of the bottom plate, the connecting plates b (51) are provided with a connecting hole b, and the bottom of the inclined steel column (1) is also provided with a connecting hole B. The bottom of the inclined steel column (1) is inserted into the space between the two connecting plates (51), and the connecting hole B of the inclined steel column (1) is aligned with the connecting hole b of the connecting plate (51). Bolts are passed through the connecting hole b and the connecting hole B and are tightened to connect and fix them. A gap is left between the outer side of the connecting plate (51) and the edge of the adjacent bottom plate (53). Two stiffening plates b (52) perpendicular to the connecting plate (51) are arranged on the outer side of the connecting plate (51). The bottom of the stiffening plates b (52) is fixedly connected to the bottom plate (53) and is located on both sides of the connecting hole b.

7. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The ground foundation (7) is a reinforced concrete cast-in-place pile, a reinforced concrete prefabricated pipe pile or a spiral steel pile; When the ground foundation (7) is a reinforced concrete cast-in-place pile, the column foot connector (5) is connected to the reinforced concrete cast-in-place pile via pre-buried bolts; When the ground foundation (7) is a reinforced concrete prefabricated pipe pile, the column foot connector (5) is connected to the reinforced concrete prefabricated pile by welding; When the ground foundation (7) is a spiral steel pile, the column base connector (5) is connected to the spiral steel pile via flange bolts.

8. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The inclined steel column (1) is a 80x80x3.0 hot-dip galvanized square tube, the steel column connector (2) is a 90x90x3.0 hot-dip galvanized square tube, and the horizontal support rod and the inclined rod of the support rod assembly (3) are both C60x20x10x2.5 hot-dip galvanized thin-walled curled steel.

9. The steel support unit for a flat uniaxial photovoltaic panel according to claim 1, characterized in that: The thickness of the connecting plate a (41) and the connecting plate b (51) is 10 mm, and the thickness of the stiffening plate a (42) and the stiffening plate b (52) is 6 mm.

10. A steel support for a flat uniaxial photovoltaic panel, characterized in that: It includes several bracket units. A flat single shaft is horizontally arranged below the photovoltaic panel. The two ends of the flat shaft are arranged at the top of the bracket unit. The bracket unit supports the flat single shaft, and the photovoltaic panel can rotate around the flat single shaft.

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