Photovoltaic support foundation, installation method and anti-corrosion treatment method

Abstract

The invention discloses a photovoltaic support foundation, an installation method and an anti-corrosion treatment method. The photovoltaic support foundation comprises a photovoltaic stand column, a base, an angle adjuster, an anchoring part and a limiting part. The base can be arranged on a soil layer; a base hole is formed in the base; the angle adjuster is provided with an angle adjusting hole; the angle adjuster is arranged on the base, and the angle adjusting hole corresponds to the position of the base hole; the anchoring part penetrates through the angle adjusting hole and the base hole, can be inserted into a soil layer and is used for fixing the position of the base; the limiting piece is arranged at one end of the anchoring piece, is directly or indirectly connected with the base and is used for limiting the anchoring piece; the photovoltaic stand column is arranged on the base. According to the photovoltaic support foundation, the construction difficulty of the photovoltaic support foundation can be effectively reduced, and the construction efficiency of the photovoltaic support foundation is improved. According to the installation method, people can be scientifically guided to efficiently complete installation of the novel photovoltaic support foundation. According to the anti-corrosion treatment method, the service life of the steel photovoltaic support foundation can be effectively prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic support foundations, and in particular relates to a photovoltaic support foundation, an installation method and an anti-corrosion treatment method. Background Art

[0002] With the rapid development of the photovoltaic industry, outdoor distributed photovoltaics account for a large proportion. However, due to the limitations of the natural environment and construction conditions, the traditional outdoor photovoltaic support foundation has certain limitations.

[0003] There are mainly the following types of existing outdoor photovoltaic support foundations: the first is cast-in-place pile foundation, the second is prefabricated pipe pile foundation, and the third is spiral foundation.

[0004] Cast-in-place pile foundations have a certain range of applications due to their mature construction technology and high safety factor. However, cast-in-place pile foundations are wet operations. In some areas with restricted construction conditions, wet operations are often difficult to carry out on a large scale. At the same time, the installation of pipe pile foundations requires the use of large-scale machinery and equipment, which increases the project cost.

[0005] For prefabricated pipe pile foundations, this form of foundation can avoid on-site wet operations, but for areas with inconvenient transportation, the transportation of prefabricated pipe piles is difficult. At the same time, due to the heavy weight of prefabricated pipe piles, large-scale pile driving equipment is required for construction, and the construction speed is slow.

[0006] As for the spiral foundation, this foundation form has the characteristic of fast construction speed, but the spiral foundation enters the soil layer vertically, and the bearing capacity of the spiral foundation is provided by a single spiral pile. In order to meet the bearing capacity requirements, the pile often enters the soil layer deeply and the pile length is long, which brings certain difficulties to the construction.

[0007] Currently, there is a lack of a photovoltaic support foundation suitable for dry work in outdoor areas to reduce the construction difficulty and improve construction efficiency. Currently, there is a lack of a new photovoltaic support foundation installation method to scientifically guide people to complete the installation of the new photovoltaic support foundation efficiently. Currently, there is a lack of an anti-corrosion treatment method for the new photovoltaic support foundation to extend the service life of the new photovoltaic support foundation.

[0008] Therefore, a new technology is needed to address the existing problems of the lack of a photovoltaic support foundation suitable for dry operation in outdoor areas. A new technology is needed to address the existing problems of the lack of a new photovoltaic support foundation installation method. A new technology is needed to address the existing problems of the lack of a new photovoltaic support foundation anti-corrosion treatment method. Summary of the Invention

[0009] In order to solve the above problems in the prior art, the present invention provides a photovoltaic bracket foundation suitable for dry operations in outdoor sites, which can effectively reduce the construction difficulty of the photovoltaic bracket foundation and improve its construction efficiency.

[0010] The present invention adopts the following technical solutions:

[0011] A photovoltaic support foundation comprises a photovoltaic column, a base, an angle adjuster, an anchor and a limiter; the base can be set on a soil layer; the base is provided with a seat hole; the angle adjuster is provided with an angle adjustment hole; the angle adjuster is set on the base, and the angle adjustment hole is set corresponding to the position of the seat hole; the anchor can be inserted into the soil layer through the angle adjustment hole and the seat hole, and is used to fix the position of the base; the limiter is set at one end of the anchor and is directly or indirectly connected to the base, and is used to limit the anchor; the photovoltaic column is set on the base.

[0012] Furthermore, the base is one of a circular pad and a polygonal pad.

[0013] Furthermore, the anchor is one of a ribbed steel chisel and a ribbed steel bar.

[0014] Furthermore, after the anchor is inserted into the soil layer, the anchor maintains a set angle with the horizontal plane of the soil layer; the angle is one of an acute angle, a right angle, and an obtuse angle.

[0015] Furthermore, the length of the anchor is calculated according to a first formula; wherein the first formula is:

[0016]

[0017] In the formula, L is the length of the anchor; F is the vertical force of the photovoltaic column; N is the number of anchors under a single photovoltaic column; Σ is the summation symbol; q si is the characteristic value of the ultimate bearing capacity of the soil layer; s i is the depth of the soil layer; π is the pi; d is the diameter of the anchor; a is the angle between the anchor and the horizontal plane of the soil layer.

[0018] Furthermore, the angle adjuster is an arc-shaped plate; the central angle corresponding to the arc length of the arc-shaped plate is in the range of 45° to 180°.

[0019] Furthermore, the angle adjuster is a hemispherical curved plate.

[0020] Furthermore, the angle adjustment hole is an arc-shaped square hole; the arc-shaped square hole includes a long side and a short side; the long side is at least 3d mm; the short side is at least (d+4) mm; wherein d is the diameter of the anchor.

[0021] Another object of the present invention is to provide a new method for installing a photovoltaic support foundation to scientifically guide people to efficiently complete the installation of the new photovoltaic support foundation.

[0022] An installation method, which is based on the photovoltaic support foundation, comprises the following steps:

[0023] S1, placing the base on an outdoor soil layer;

[0024] S2. If the angle adjuster is initially installed on the base, then the angle adjuster has already been installed on the outdoor soil layer along with the base in step S1. In step S2, there is no need to install the angle adjuster, and the operation of step S3 can be started directly.

[0025] If the angle adjuster is not initially provided on the base, then in step S2, the angle adjuster needs to be installed on the base, and the angle adjustment hole needs to be provided correspondingly to the seat hole, and then the operation of step S3 can be started;

[0026] S3, inserting the anchor through the angle adjustment hole and the seat hole to a set depth in the soil layer, and making the anchor form a set angle with the horizontal plane of the soil layer;

[0027] S4. Installing the limiting member at one end of the anchor member, and directly or indirectly fixing the limiting member to the base;

[0028] S5. If the photovoltaic columns are initially installed on the base, then the photovoltaic columns have already been installed on the outdoor soil layer together with the base in step S1. In step S5, there is no need to install the photovoltaic columns, and the process directly skips to step S6.

[0029] If the photovoltaic column is not initially installed on the base, then in step S5, the photovoltaic column needs to be installed on the base before the process proceeds to step S6.

[0030] S6. Installation completed.

[0031] Another object of the present invention is to provide an anti-corrosion treatment method for a novel photovoltaic support foundation to increase the service life of the novel photovoltaic support foundation.

[0032] An anti-corrosion treatment method is performed based on the photovoltaic support foundation, wherein one or more of the photovoltaic columns, the base, the angle adjuster, the anchor, and the limiter are steel components;

[0033] An anti-corrosion treatment method comprises the following steps:

[0034] A1. First, the steel component is subjected to rust removal treatment, wherein the rust removal grade is at least Sa2.5, and the surface roughness Rz of the steel component is ensured to be in the range of 40 μm to 75 μm;

[0035] A2. Coat the steel component with epoxy zinc-rich paint, ensuring that the paint layer thickness is at least 70 μm;

[0036] A3. Coat the steel component with epoxy micaceous iron paint, and ensure that the paint layer thickness is at least 60 μm;

[0037] A4. Coat the steel member with acrylic epoxy polyurethane paint, ensuring that the paint layer thickness is at least 70 μm;

[0038] A5. Complete the anti-corrosion treatment of the steel components.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The photovoltaic support foundation of the present invention is suitable for dry operations in outdoor sites, and effectively solves the problems of inconvenience in construction and high cost faced by traditional cast-in-place pile foundations in wet operations outdoors.

[0041] The photovoltaic support foundation of the present invention has a clear structure and is simple to install. Its components are preferably steel and can be prefabricated in a factory and then transported to the site for installation. Compared to traditional prefabricated pipe pile foundations, the components of the photovoltaic support foundation of the present invention are smaller and less bulky, effectively solving the problems of traditional prefabricated pipe pile foundations, such as their heavy weight, inconvenient transportation, and difficult installation.

[0042] A photovoltaic bracket foundation of the present invention adopts an angle adjuster to promote the installation of anchors, which is conducive to controlling the angle of the anchors anchored in the soil layer. Preferably, after installation, the two symmetrically arranged anchors are arranged in an "eight" shape on the facade, which effectively improves the pull-out and anti-overturning capabilities of the base, and the force is more reasonable, making the photovoltaic columns arranged on the base more stable, effectively solving the problems of poor shallow anchoring ability and high difficulty in deep anchoring construction of traditional spiral foundations.

[0043] The photovoltaic support foundation of the present invention has the characteristics of fast construction speed, low engineering cost, high foundation safety factor and good mechanical performance.

[0044] The present invention provides a novel photovoltaic support foundation installation method, which is specially designed according to the characteristics of the novel photovoltaic support foundation, and can scientifically guide people to efficiently complete the installation of the novel photovoltaic support foundation, thereby improving construction efficiency.

[0045] The present invention provides a novel anti-corrosion treatment method for a photovoltaic support foundation, which can effectively increase the service life of a steel photovoltaic support foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The technology of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0047] Figure 1 It is a three-dimensional schematic diagram of "a photovoltaic support foundation" of the present invention;

[0048] Figure 2 This is a schematic elevation view of a photovoltaic support foundation according to the present invention disposed on a soil layer;

[0049] Figure 3 Schematic diagram (partial schematic diagram) of the anchor member of the present invention passing through the angle adjustment hole and the seat hole (its angle adjuster is simplified to show the central angle);

[0050] Figure 4 It is a top view of the "a photovoltaic support foundation" of the present invention;

[0051] Figure 5 It is a three-dimensional schematic diagram of the base;

[0052] Figure 6 It is a schematic elevation view of the anchor;

[0053] Figure 7 It is a three-dimensional schematic diagram of the angle adjuster;

[0054] Figure 8 It is a three-dimensional schematic diagram of the limiter.

[0055] Reference numerals:

[0056] 1- Photovoltaic support foundation;

[0057] 2- Photovoltaic columns;

[0058] 3-base; 31-seat hole;

[0059] 4-angle adjuster; 41-angle adjustment hole; C-center angle; 411-long side; 412-short side;

[0060] 5-anchor; 51-tip; 52-threaded portion;

[0061] 6-Limiting parts;

[0062] 7-soil layer; P-horizontal plane; a-angle; B-positive direction sign. DETAILED DESCRIPTION

[0063] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0064] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, terms such as "upper," "lower," "left," and "right" used in this disclosure are intended solely to describe the relative positions of the components of the disclosure as shown in the accompanying drawings.

[0065] Reference Figures 1 to 8 , a photovoltaic bracket foundation 1, comprising a photovoltaic column 2, a base 3, an angle adjuster 4, an anchor 5 and a limiter 6; the base 3 can be set on a soil layer 7; the base 3 is provided with a seat hole 31; the angle adjuster 4 is provided with an angle adjustment hole 41; the angle adjuster 4 is arranged on the base 3, and the angle adjustment hole 41 is arranged corresponding to the position of the seat hole 31; the anchor 5 can be inserted into the soil layer 7 through the angle adjustment hole 41 and the seat hole 31, and is used to fix the position of the base 3; the limiter 6 is arranged at one end of the anchor 5, and is directly or indirectly connected to the base 3, for limiting the anchor 5; the photovoltaic column 2 is arranged on the base 3, and the photovoltaic column 2 is used to install photovoltaic products (such as photovoltaic panels).

[0066] In one embodiment, the base 3 is a circular pad, a polygonal pad (such as a rectangular pad); the thickness of the base 3 is at least 12 mm; the base 3 is at least Q355 steel; Figure 4 and Figure 5 In this embodiment, the base 3 is a circular pad with a thickness of 20 mm and a material of Q355 steel. For example, the "Q" in "Q355" refers to the yield strength of the steel, and "355" refers to the yield strength of the steel as "355 MPa".

[0067] Reference Figure 4 and Figure 5 In one embodiment, the base 3 has a plurality of seat holes 31 uniformly arranged along its circumference on a flat surface (e.g., when viewed from above); each seat hole 31 is provided with an angle adjuster 4. Preferably, there are four seat holes 31, and correspondingly, four anchors 5 are provided. It should be noted that the number of anchors 5 described in the present invention is not limited to two, three, or four; multiple anchors may be provided as needed.

[0068] In one embodiment, the seat hole 31 is a square hole, the hole length of the square hole is at least 3d mm, and the hole width is at least (d+4) mm, wherein d is the diameter of the anchor 5 .

[0069] In one embodiment, the anchor 5 is a ribbed steel bar or a ribbed steel bar. Figure 6 In this embodiment, the anchor 5 is a ribbed steel bar. In another embodiment, the anchor 5 is HRB400 grade steel bar, where "H" stands for "hot rolled," "R" stands for "ribbed," "B" stands for "rebar," and "400" indicates that the standard yield strength of the steel bar is "400 MPa."

[0070] Reference Figures 1 to 8 Preferably, one end of the anchor 5 is provided with a tip 51, and the tip 51 is used to facilitate the insertion of the anchor into the soil layer 7; the other end of the anchor 5 is provided with a threaded portion 52, and the threaded portion 52 is used to be threadedly connected to the limiter 6. Figure 8 Preferably, the limiting member 6 is an external hexagonal nut.

[0071] In one embodiment, the anchor 5 is inserted into the soil layer 7 by one or more of gravity hammering and static ballasting (when multiple methods are used, the two modes of "gravity hammering and static ballasting" are used in combination (sequentially and sequentially) to insert the anchor 5 into the soil layer 7). The gravity hammering method is manual hammering or hydraulic hammering. That is, when the gravity hammering method is used, manual hammering or hydraulic hammering can be used during construction to insert the anchor 5 into the soil layer 7.

[0072] Reference Figure 2 In one embodiment, after the anchor 5 is inserted into the soil layer 7, the anchor 5 maintains a set angle a with the horizontal plane P of the soil layer 7; the angle a is one of an acute angle, a right angle, and an obtuse angle. For example, a horizontal plane coordinate is established on a plane of the base 3 (such as the side where the bottom surface of the base 3 contacts the soil layer 7). The coordinate axis of the horizontal plane coordinate extends outward from the center of the base 3 (i.e., a divergent coordinate axis). The direction in which the coordinate axis extends outward is considered to be the positive direction of the coordinate axis (refer to Figure 2 The positive direction symbol B is shown in the figure), then after the anchor 5 is anchored, the anchor 5 forms an acute angle a with the positive direction of the target coordinate axis, so that the two symmetrically arranged anchors 5 are arranged in an "eight" shape, and when arranged circumferentially, the "several anchors" are arranged in an "umbrella" shape (refer to Figure 2 and Figure 4As shown), the "umbrella-shaped" arrangement of the present invention is beneficial to improving the anti-pullout and anti-overturning capabilities of the base 3 after it is fixed, making the photovoltaic column 2 arranged on the base 3 more stable and safer.

[0073] In one embodiment, the length of the anchor 5 is calculated according to a first formula; wherein the first formula is:

[0074]

[0075] In the formula, L is the length of the anchor; F is the vertical force of the photovoltaic column; N is the number of anchors under a single photovoltaic column; Σ is the summation symbol; q si is the characteristic value of the ultimate bearing capacity of the soil layer; s i is the depth of the soil layer; π is the pi; d is the diameter of the anchor; a is the angle between the anchor and the horizontal plane of the soil layer (such as Figure 2 Angle a) in.

[0076] In one embodiment, the diameter of the anchor 5 is generally no more than 32 mm. The number of the anchors 5 is at least two.

[0077] Reference Figure 3 and Figure 7 In one embodiment, the angle adjuster 4 is an arc-shaped plate (note: an "arc-shaped plate", which is different from the "hemispherical curved plate" below); the central angle C corresponding to the arc length of the arc-shaped plate is in the range of 45° to 180°.

[0078] In another embodiment, the angle adjuster 4 is a hemispherical curved plate (like a "hemispherical cover").

[0079] Preferably, the angle adjuster 4 is made of at least Q355 steel, and its thickness is at least 12 mm. In this embodiment, the angle adjuster 4 is made of Q355 steel, and its thickness is 20 mm.

[0080] Preferably, the angle adjuster 4 is connected to the base 3 by welding. The welding method can be groove welding or fillet welding. When fillet welding is used, the fillet weld height is 10 mm. After welding the angle adjuster 4, weld flaw detection is required. The weld flaw detection method can be one or more of visual inspection, ultrasonic testing, radiographic testing, magnetic particle testing, penetrant testing, eddy current testing, and acoustic emission testing.

[0081] Reference Figure 7In one embodiment, the angle adjustment hole 41 is an arc-shaped square hole; the arc-shaped square hole includes a long side 411 and a short side 412; the long side 411 is at least 3d mm; the short side 412 is at least (d+4) mm; wherein d is the diameter of the anchor 5.

[0082] In one embodiment, the photovoltaic column 2 is one of a "U"-shaped component, an "I"-shaped component, a "O"-shaped component, and an "O"-shaped component; wherein the "U"-shaped, "I"-shaped, "O"-shaped, and "O"-shaped refer to the cross-section of the photovoltaic column 2. Figure 1 and Figure 4 In this embodiment, the photovoltaic column 2 is a "U"-shaped component.

[0083] In one embodiment, the photovoltaic column 2 is connected and fixed to the base 3 by welding. The welding method can be groove welding or fillet welding. When fillet welding is used, the fillet weld height is 10 mm. After the photovoltaic column 2 is welded, weld flaw detection is required. The weld flaw detection method can be one or more of visual inspection, ultrasonic testing, radiographic testing, magnetic particle testing, penetrant testing, eddy current testing, and acoustic emission testing.

[0084] Another object of the present invention is to provide a new method for installing a photovoltaic support foundation to scientifically guide people to efficiently complete the installation of the new photovoltaic support foundation.

[0085] An installation method, which is based on the photovoltaic support foundation, comprises the following steps:

[0086] S1, placing the base 3 on an outdoor soil layer 7;

[0087] S2. If the angle adjuster 4 is initially installed on the base 3, the angle adjuster 4 has already been installed on the outdoor soil layer 7 together with the base 3 in step S1. In this step S2, there is no need to install the angle adjuster 4, and the operation of step S3 can be started directly.

[0088] If the angle adjuster 4 is not initially installed on the base 3, then in step S2, the angle adjuster 4 needs to be installed on the base 3, and the angle adjustment hole 41 is ensured to correspond to the seat hole 31, and then the operation of step S3 is started;

[0089] S3, inserting the anchor 5 through the angle adjustment hole 41 and the seat hole 31 to the set depth of the soil layer 7, and making the anchor 5 form a set angle a with the horizontal plane P of the soil layer 7;

[0090] S4. Install the limiter 6 on one end of the anchor 5 (the end having the threaded portion 52), and fix the limiter 6 directly or indirectly to the base 3. In this embodiment, the limiter 6 is fixed to the angle adjuster 4 by spot welding, that is, the limiter 6 is indirectly fixed to the base 3 via the angle adjuster 4. With the limiter 6, the anchor 5 can maintain a stable fixed state after being inserted into the soil layer 7.

[0091] S5. If the photovoltaic column 2 is initially installed on the base 3, the photovoltaic column 2 has already been installed on the outdoor soil layer 7 together with the base 3 in step S1. In this step S5, there is no need to install the photovoltaic column 2, and the process directly jumps to step S6.

[0092] If the photovoltaic column 2 is not initially installed on the base 3, then in step S5, the photovoltaic column 2 needs to be installed on the base 3 before the process proceeds to step S6.

[0093] S6. Installation completed.

[0094] Another object of the present invention is to provide an anti-corrosion treatment method for a novel photovoltaic support foundation to increase the service life of the novel photovoltaic support foundation.

[0095] An anti-corrosion treatment method is performed based on the photovoltaic support foundation, wherein one or more of the photovoltaic column 2, the base 3, the angle adjuster 4, the anchor 5, and the limiter 6 are steel components;

[0096] An anti-corrosion treatment method comprises the following steps:

[0097] A1. First, perform rust removal on the steel component (for example, using a small recyclable sandblasting machine for sandblasting), wherein the rust removal grade is at least Sa2.5, and the surface roughness Rz of the steel component is ensured to be in the range of 40μm to 75μm;

[0098] A2. Coating the steel component with epoxy zinc-rich paint (as a primer) and ensuring that the paint layer thickness is at least 70 μm;

[0099] A3. Coating the steel component with epoxy micaceous iron paint (as an intermediate paint) and ensuring that the paint layer thickness is at least 60 μm;

[0100] A4. Apply acrylic epoxy polyurethane paint (as a topcoat) to the steel member, ensuring that the paint layer thickness is at least 70 μm;

[0101] A5. Complete the anti-corrosion treatment of the steel components.

[0102] In one embodiment, the photovoltaic support foundation described herein requires initial maintenance no later than 10 years, with subsequent maintenance occurring every five years. Each maintenance period should include a comprehensive inspection of the paint finish and on-site repair of any damaged areas. Preferably, during on-site anti-corrosion repair, the rust removal level should be Sa3, and the remaining treatment measures should be performed sequentially according to steps A1 through A5 above.

[0103] A photovoltaic bracket foundation of the present invention can be installed and constructed in an outdoor site in a dry operation manner. While facilitating construction, it solves the problem that the photovoltaic bracket foundation is limited to wet operation construction. At the same time, the present invention can improve the anti-overturning ability of the photovoltaic bracket foundation by adjusting the angle of the anchor 5 (such as a ribbed steel chisel) driven into the soil layer 7, making the force more reasonable.

[0104] For other details of the photovoltaic bracket foundation, installation method and anti-corrosion treatment method described in the present invention, please refer to the prior art and will not be repeated here.

[0105] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A photovoltaic support foundation, characterized in that: It includes a photovoltaic column, a base, an angle adjuster, an anchor and a limiter; the base can be set on the soil layer; the base is provided with a seat hole; the angle adjuster is provided with an angle adjustment hole; the angle adjuster is set on the base, and the angle adjustment hole is set corresponding to the position of the seat hole; the anchor can be inserted into the soil layer through the angle adjustment hole and the seat hole, and is used to fix the position of the base; the limiter is set at one end of the anchor, and is directly or indirectly connected to the base, and is used to limit the anchor; the photovoltaic column is set on the base.

2. A photovoltaic support foundation according to claim 1, characterized in that: The base is one of a circular pad and a polygonal pad.

3. A photovoltaic support foundation according to claim 1, characterized in that: The anchoring piece is one of a ribbed steel chisel and a ribbed steel bar.

4. A photovoltaic support foundation according to claim 1, characterized in that: After the anchor is inserted into the soil layer, the anchor maintains a set angle with the horizontal plane of the soil layer; the angle is one of an acute angle, a right angle, and an obtuse angle.

5. The photovoltaic support foundation according to claim 1, characterized in that: The length of the anchor is calculated according to a first formula; wherein the first formula is: In the formula, L is the length of the anchor; F is the vertical force of the photovoltaic column; N is the number of anchors under a single photovoltaic column; Σ is the summation symbol; q si is the characteristic value of the ultimate bearing capacity of the soil layer; s i is the depth of the soil layer; π is the pi; d is the diameter of the anchor; a is the angle between the anchor and the horizontal plane of the soil layer.

6. A photovoltaic support foundation according to any one of claims 1 to 5, characterized in that: The angle adjuster is an arc-shaped plate; the central angle corresponding to the arc length of the arc-shaped plate is in the range of 45° to 180°.

7. A photovoltaic support foundation according to any one of claims 1 to 5, characterized in that: The angle adjuster is a hemispherical curved plate.

8. A photovoltaic support foundation according to any one of claims 1 to 5, characterized in that: The angle adjustment hole is an arc-shaped square hole; the arc-shaped square hole includes a long side and a short side; the long side is at least 3d mm; the short side is at least (d+4) mm; wherein d is the diameter of the anchor.

9. An installation method, which is based on the photovoltaic support foundation according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, placing the base on an outdoor soil layer; S2. If the angle adjuster is initially installed on the base, then the angle adjuster has already been installed on the outdoor soil layer along with the base in step S1. In step S2, there is no need to install the angle adjuster, and the operation of step S3 can be started directly. If the angle adjuster is not initially provided on the base, then in step S2, the angle adjuster needs to be installed on the base, and the angle adjustment hole needs to be provided correspondingly to the seat hole, and then the operation of step S3 can be started; S3, inserting the anchor through the angle adjustment hole and the seat hole to a set depth in the soil layer, and making the anchor form a set angle with the horizontal plane of the soil layer; S4. Installing the limiting member at one end of the anchor member, and directly or indirectly fixing the limiting member to the base; S5. If the photovoltaic columns are initially installed on the base, then the photovoltaic columns have already been installed on the outdoor soil layer together with the base in step S1. In step S5, there is no need to install the photovoltaic columns, and the process directly skips to step S6. If the photovoltaic column is not initially installed on the base, then in step S5, the photovoltaic column needs to be installed on the base before the process proceeds to step S6. S6. Installation completed.

10. An anti-corrosion treatment method, which is performed based on a photovoltaic support foundation according to any one of claims 1 to 8, characterized in that: One or more of the photovoltaic column, the base, the angle adjuster, the anchor, and the limiter is a steel component; An anti-corrosion treatment method comprises the following steps: A1. First, the steel component is subjected to rust removal treatment, wherein the rust removal grade is at least Sa2.5, and the surface roughness Rz of the steel component is ensured to be in the range of 40 μm to 75 μm; A2. Coat the steel component with epoxy zinc-rich paint, ensuring that the paint layer thickness is at least 70 μm; A3. Coat the steel component with epoxy micaceous iron paint, and ensure that the paint layer thickness is at least 60 μm; A4. Coat the steel member with acrylic epoxy polyurethane paint, ensuring that the paint layer thickness is at least 70 μm; A5. Complete the anti-corrosion treatment of the steel components.

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