Foundation structure for farming-type solar power generation structure

Abstract

To provide a foundation structure for a farming-type solar power generation structure which enables shortening man-hours and an installation work period for solar power generation structures by simplifying components.SOLUTION: A foundation structure for a farming-type solar power generation structure comprises a plurality of support pieces 120 supporting both side faces of posts 200 erected on a foundation pile 110 embedded underground. A receiving piece 123 supporting a lower surface of the post 200 is provided. A bent portion 125 which is bent outwardly and protrudes is formed at a lower part of each support piece 120 close to the receiving piece 123. The support piece 120 at an upper part of the bent portion 125 has elasticity to be bent, so that the support piece 120 screwed to the post 200 is provided in a surface adhesion state. A parted gap 126 is formed between the two receiving pieces 123, so that a liquid foreign matter flows down and is discharged.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a foundation structure of an agricultural photovoltaic power generation structure, and more particularly to a foundation structure of an agricultural photovoltaic power generation structure that simplifies the number of components constituting the foundation structure and reduces the man-hours for assembling the photovoltaic power generation structure.

Background Art

[0002] Generally, in a photovoltaic power generation system, columns are installed, frames of various structures are assembled on the columns, and then solar cell modules are installed on the frames. The solar cell modules generate electricity using solar energy, and the frames are installed obliquely so as to face the direction in which the sun shines in order to maximize the amount of electricity generated by the solar cell modules.

[0003] Recently, such a photovoltaic power generation system has been installed on farmland, and by performing photovoltaic power generation using solar energy in parallel with agricultural work, the generated electricity is sold to obtain profits, and such agricultural photovoltaic power generation has a tendency to increase.

[0004] As an example of such a photovoltaic power generation system, the applicant of the present application has proposed an "agricultural photovoltaic power generation structure" in Patent Document 1.

[0005] Patent Document 1 discloses a joint device for a solar power generation structure, which includes a foundation pile driven and installed underground, a support column on which a solar power generation structure is erected, and a connecting piece and a fixing piece that connect the support column and the foundation pile and fix the rotating support column in an erected state. The connecting piece is rotatably connected to the support column on the foundation pile and includes a first support piece that fixes the support column in an erected state, and a second support piece that extends from the first support piece and is coupled to the foundation pile. The first support piece has a plurality of long holes coupled to the support column, and includes a support plate on which the fixing piece is hooked, and a receiving plate that extends from the support plate, has a lower surface in contact with the foundation pile, and an upper surface that fixes and supports the support column. The second support piece includes a first cover plate that wraps around the outer peripheral surface of the foundation pile, and a second cover plate that extends with steps from both sides of the first cover plate. The first cover plate is formed to extend outward with a step from the second cover plate so as to have a larger diameter than the second cover plate, and is provided so as to be rotatable and position-adjustable in a state of accommodating a joining protrusion protruding outward from the foundation pile. The second cover plate is formed with a reinforcing rib coupled to the first support piece.

[0006] In Patent Document 1 disclosed in this way, two support pieces of the connecting piece are connected to the upper end of the foundation pile buried underground in a state of facing each other and wrapping the foundation pile. In this state, the support column is inserted between the two support pieces of the connecting piece and fastened in an upright state, so that the support column is erected on the foundation pile.

[0007] However, in a conventional solar power generation system, in order to install a support column on a foundation pile, it is always necessary to install a connecting piece at the upper end of the foundation pile. At that time, the connecting piece is composed of a plurality of support pieces, and the installation of the connecting piece is completed by fastening and fixing the two support pieces in a state of facing each other on both sides of the upper end of the foundation pile.

[0008] Thus, since the foundation structure including the foundation piles and connecting pieces for installing the columns is composed of an unnecessary number of parts, there are drawbacks such as an increase in man-hours, a decrease in workability, not only a lengthening of the installation period for assembly, but also an increase in installation costs.

Prior Art Documents

Patent Documents

[0009]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0010] Therefore, the present invention was devised to solve the problems of the prior art as described above, and by simplifying the components constituting the foundation structure for installing the columns of the photovoltaic power generation structure, it is possible to shorten the man-hours and installation period of the agricultural photovoltaic power generation structure. The purpose is to provide a foundation structure for an agricultural photovoltaic power generation structure.

Means for Solving the Problems

[0011] In order to achieve the above object, the foundation structure of the agricultural photovoltaic power generation structure according to the present invention is a foundation structure of a photovoltaic power generation structure for installing columns of the photovoltaic power generation structure, which is provided so as to face each other on the foundation piles buried in the ground, and a plurality of support piece portions are integrally formed on the foundation piles respectively.

[0012] And, on the support piece portion of the foundation structure, a receiving piece portion is further provided which is bent from the support piece portion toward the foundation pile side and fixed to the foundation pile. At one end of the support piece portion connected to the receiving piece portion, a bent portion is formed which is recessed and bent so as to protrude outward, whereby the support piece portion screwed to the column is provided in a state of being in surface contact with the column.

[0013] Furthermore, a coating layer coated with molten zinc may be formed on the foundation structure.

Advantages of the Invention

[0014] According to the foundation structure of the farming-type solar power generation structure of the present invention, by configuring the foundation pile and the connecting piece that constitute the foundation structure for installing the support column as a single component, the man-hours of the solar power generation structure are reduced, the workability is improved, the installation period for assembly is shortened, and the installation cost is reduced.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0016] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0017] The terms used in the present invention are terms defined in consideration of the functions in the present invention, and since they may differ depending on the intentions or conventions of users and operators, the definitions of these terms should be interpreted in meanings and concepts that conform to the technical matters of the present invention.

[0018] In addition, the embodiments of the present invention do not limit the scope of the rights of the present invention, but are merely examples of the components shown in the claims of the present invention, are included in the technical idea throughout the specification of the present invention, and include components that can be substituted as equivalents in the components of the claims.

[0019] Furthermore, the optional terms in the following embodiments are used to distinguish one component from another component, and the components are not limited by those terms.

[0020] Therefore, when explaining the present invention, if the detailed description of related known technologies obscures the gist of the present invention, the detailed description will be omitted.

[0021] FIGS. 1 to 6 are diagrams showing the foundation structure of the agricultural solar power generation structure according to the present invention.

[0022] The agricultural solar power generation structure according to the present invention includes, as shown in FIGS. 1 to 4, a foundation structure 100 fixedly installed underground, a support column 200 erected on the foundation structure 100, and a solar module (not shown) installed on the support column 200 to generate electricity using solar energy, that is, to perform power generation.

[0023] In particular, as shown in FIG. 4, the foundation structure 100 includes a foundation pile 110 buried and installed underground, a plurality of support piece portions 120 provided to face the upper end portion of the foundation pile 110 exposed above the ground, and a plurality of fixing pieces 140 provided to face each other between the two support piece portions 120.

[0024] At this time, the plurality of support piece portions 120 are integrally formed with the foundation pile 110 respectively, so that the number of components constituting the foundation structure 100 can be reduced.

[0025] Furthermore, the support piece portion 120 of the foundation structure 100 is further provided with a receiving piece portion 123 that is bent from the support piece portion 120 toward the foundation pile 110 side and integrally formed with the foundation pile 110. At one end portion (lower end portion) of the support piece portion 120 connected to the receiving piece portion 123, a bent portion 125 that protrudes outward and is recessed is bent and formed.

[0026] Due to the bent portion 125 formed in this way, the support piece portion 120 above the bent portion 125 has an elastic force that allows its entire surface to be easily bent (in the direction of bending) so that it can approach or move away from the receiving piece portion 123 in the opposing direction.

[0027] Particularly, in a state where there is no bent portion 125 as in the present invention, since the two support piece portions 120 are installed in a cantilever beam shape that rises upward from each receiving piece portion 123, when the two support piece portions 120 are screwed and fastened to both side surfaces of the support column 200 with a support column 200 provided between the two support piece portions 120, the support piece portion 120 does not easily bend from the receiving piece portion 123 toward the support column 200 side. Therefore, as shown in FIG. 7, only the fastening location to be screwed or the upper end portion to be screwed is bent toward the support column 200 side and locally contacts the support column 200.

[0028] As a result, the two support piece portions 120 cannot be in surface-to-surface contact with both side surfaces of the support column 200 and only locally contact, so the fixed state of the support column 200 cannot be firmly maintained.

[0029] Therefore, in the present invention, by forming a bent portion 125 that is bent and protrudes on the outer side of the support piece portion 120, that is, on the opposite side of the surface where the two support piece portions 120 face each other, at the lower end portion of the support piece portion 120 connected to the receiving piece portion 123 which is the fixed end of the support piece portion 120, when the two support piece portions 120 are screwed and fastened to both side surfaces of the support column 200, the two support piece portions 120 can be easily bent in the opposing direction by the bent portion 125 and provided in a state of being in surface-to-surface contact with both side surfaces of the support column 200.

[0030] Therefore, by providing the two support piece portions 120 in close contact with both side surfaces of the support column 200 over as wide an area as possible, the support column 200 can be firmly fixed.

[0031] Furthermore, since the above-described foundation structure 100 is installed outdoors, the plurality of support piece portions 120 and receiving piece portions 123 integrally formed on the entire foundation structure 100 or at least on the foundation piles 110 form a coating layer coated with molten zinc, thereby preventing the occurrence of rust in advance.

[0032] At that time, the coating of molten zinc is usually carried out by immersing the foundation structure 100 or the plurality of support piece portions 120 and receiving piece portions 123 in a furnace in which pure zinc is melted. However, during the process of drying the coated molten zinc, the molten zinc coated on the entire surface of the support piece portion 120 flows down and gathers at the boundary portion between the support piece portion 120 and the receiving piece portion 123, that is, on the inner corner side. When the drying of the molten zinc is completed in this state, solidified molten zinc lumps are formed and present at the inner corners of the support piece portion 120 and the receiving piece portion 123.

[0033] Then, the support column 200 erected between the two support piece portions 120 cannot be accurately seated on the receiving piece portion 123 due to such molten zinc lumps, and floats upward due to the molten zinc lumps and is installed in an inclined manner, so the installation of the support column 200 is not firmly performed.

[0034] Therefore, in the present invention, by forming a bent portion 125 protruding outward at the lower end of the support piece portion 120 connected to the receiving piece portion 123, the molten zinc flowing down from the support piece portion 120 flows into the bent portion 125 and becomes a molten zinc lump within the bent portion 125, so that the installation of the support column 200 erected on the receiving piece portion 123 is not hindered.

[0035] On one hand, the foundation pile 110 that constitutes the above-described infrastructure 100 is formed in a pointed conical shape such that its lower end can be easily driven into the ground. By providing screw-shaped blades as shown in Fig. 1 or spiral-shaped blades as shown in Fig. 6 on its circumferential surface, the foundation pile 110 can be easily driven into the ground. When the driven foundation pile 110 is rotated, the foundation pile 110 is easily dug into the ground and buried.

[0036] The upper end of such a foundation pile 110 is exposed on the ground. On both sides of the exposed upper end of the foundation pile 110, a plurality of support piece parts 120 are integrally formed in a facing state as described above.

[0037] In addition, a plurality of elongated holes 121 corresponding to the first coupling holes 201 of the support columns 200 described later are formed in a triangular shape in the support piece parts 120 as described above. Specifically, a single elongated hole is formed in the upper part of the support piece part 120, and a plurality of elongated holes are formed on both sides of the upper elongated hole 121 in the lower part of the support piece part 120.

[0038] The elongated holes 121 of such support piece parts 120 are formed to be long in the vertical direction and are provided in a state of being aligned and communicating with the first coupling holes 201 of the support columns 200, so that bolts sequentially penetrate through the elongated holes 121 of the support piece parts 120 and the first coupling holes 201 of the support columns 200 and are fastened.

[0039] At that time, the single elongated hole 121 located in the upper part of the support piece part 120 is a fixing hole for fixing the erected support column 200, and it may be formed as a circular hole instead of an elongated hole.

[0040] And the plurality of elongated holes 121 located in the lower part of the support piece part 120 are hinge holes for rotating the support columns 200 described later from the support piece parts 120 and standing them up. By providing the plurality of elongated holes 121 on both sides of the lower part of the support piece part 120 respectively, the support column 200 can be freely tilted in one direction or the other opposite direction by one of the elongated holes 121 on both sides of the lower part.

[0041] Such a long hole 121 is formed long in the vertical direction of the support piece portion 120. When the first coupling hole 201 of the support column 200 is fastened with a bolt, by moving up and down along the long hole 121, it is possible to prevent the lower end portion of the support column 200 from being caught by the receiving piece portion 123 of the support piece portion 120 and interfering when the support column 200 rotates.

[0042] And, on the upper end portion of the support piece portion 120, seating grooves 122 having a "V" - shaped step from the upper surface downward are formed at regular intervals. In the seating grooves 122, locking protrusion portions 141 of a fixing piece 140 described later are inserted and coupled.

[0043] Also, the receiving piece portion 123 is a flat plate bent vertically in the inner direction facing each other at the lower end portion of the support piece portion 120. By being provided in a state where the lower surface of the support column 200 described later is seated and supported on its plane, the load of the support column 200 and the solar power generation structure can be dispersed.

[0044] Furthermore, in the receiving piece portion 123, a plurality of insertion holes 124 are formed into which insertion protrusion portions 142 protruding downward from the lower surface of a fixing piece 140 described later are inserted and connected so as to be shape - fitted respectively. By the connection between the insertion holes 124 and the insertion protrusion portions 142, the fixing piece 140 is fixedly provided between the two support piece portions 120, thereby strongly supporting the standing support column 200 and preventing the rotation of the support column 200.

[0045] And, a separated gap 126 is formed between the two receiving piece portions 123. By discharging the liquid - state molten zinc before drying coated on the support piece portion 120 and the receiving piece portion 123 through this gap 126, it is possible to prevent the presence of dried molten zinc blocks on the receiving piece portion 123.

[0046] Also, in order to strongly support the support column 200, the above - described receiving piece portion 123 is installed with a length and width protruding from the outside of the foundation pile 110 so as to have an area wider than the cross - section of the foundation pile 110.

[0047] Thereby, a reinforcing rib 130 for supporting the receiving piece portion 123 is formed at the lower part of the receiving piece portion 123, so that the robust durability of the receiving piece portion 123 can be ensured.

[0048] In particular, such reinforcing ribs 130 are arranged at a plurality of intervals at the lower part of the receiving piece portion 123, and each reinforcing rib 130 is provided so as to protrude from the outer surface of the foundation pile 110 toward the outer corner of the receiving piece portion 123. The plurality of reinforcing ribs 130 are provided in a structure that intersects the plurality of receiving piece portions 123 forming a rectangle in an "X" shape, and the durability of the receiving piece portion 123 can be firmly reinforced.

[0049] Also, as shown in FIG. 4, the fixing piece 140 is a plurality of flat plates installed across between the two support piece portions 120, and a coupling hole 143 for being fastened to the second convenient hole 202 of the column 200 described later with bolts is formed on its surface.

[0050] The coupling hole 143 of such a fixing piece 140 is located between the upper elongated hole 121 and the lower elongated hole 121 of the support piece portion 120, which is to prevent interference between the bolt fastened to the coupling hole 143 of the fixing piece 140 and the bolts respectively fastened to the elongated holes 121 of the support piece portion 120.

[0051] On both sides of the upper end portion of such a fixing piece 140, locking protrusion portions 141 protruding outward are formed, and the two locking protrusion portions 141 are inserted and seated in the seating grooves 122 of the support piece portion 120.

[0052] And on both sides of the lower end portion of the fixing piece 140, insertion protrusion portions 142 protruding downward are formed, and the two insertion protrusion portions 142 are respectively inserted and coupled to the insertion holes 124 formed in each receiving piece portion 123 of the two support piece portions 120.

[0053] As a result, in the fixing piece 140, the locking projection 141 at the upper end is inserted into and coupled to the seating groove 122 of the support piece 120, and the insertion projection 142 at the lower end is inserted into and coupled to the insertion hole 124 of each receiving piece 123. Thus, the plurality of fixing pieces 140 are coupled and fixed while sandwiching the support column 200 erected between the two support piece parts 120. In order to support the erected support column 200, the rotation of the erected support column 200 can be firmly blocked and prevented.

[0054] On the other hand, on both side surfaces of the lower end of the support column 200 installed on the above-described foundation structure 100, circular first coupling holes 201 that are coupled to coincide with the long holes 121 of the support piece parts 120 are formed. The first coupling holes 201 are formed in a triangular shape corresponding to the long holes 121 of the support piece parts 120.

[0055] Then, on the other two side surfaces of the support column 200 orthogonal to the first coupling holes 201, circular second coupling holes 202 that are coupled to coincide with the coupling holes 143 of the fixing piece 140 are formed.

[0056] Therefore, in the foundation structure 100 constituting the photovoltaic structure according to the present invention as described above, since the pair of support piece parts 120 and the receiving piece parts 123 are integrally formed in a state of facing each other at the upper end of the foundation pile 110, as shown in FIG. 5, the man-hours for erecting the support column 200 between the two support piece parts 120 and the receiving piece parts 123 are reduced and the workability is improved. Thereby, the installation period of the photovoltaic structure is shortened and the installation cost is reduced.

[0057] In addition, since the two support piece parts 120 bent upward from the two receiving piece parts 123 have bent portions 125 that are bent outward and protrude at the lower ends that are coupled to the receiving piece parts 123, the two support piece parts 120 can be easily bent (bending) in the facing directions in the respective receiving piece parts 123 by the bent portions 125. Therefore, as shown in FIG. 5, when the two support piece parts 120 are fastened to both side surfaces of the support column 200 with bolts, the two support piece parts 120 are provided in a state of being in close contact with both side surfaces of the support column 200, so that the support column 200 can be firmly fixed.

[0058] As described above, the present invention has been described in detail with reference to specific embodiments. However, these are for specifically describing the present invention, and the present invention is not limited thereto. Needless to say, those having ordinary knowledge in the art can make modifications and improvements within the technical idea of the present invention.

[0059] Any mere modification or change of the present invention is included in the present invention, and the specific protection scope of the present invention will be clarified by the scope of the claims.

Explanation of Reference Numerals

[0060] 100 Foundation structure 110 Foundation pile 120 Support piece part 121 Long hole 122 Seating groove 123 Receiving piece part 124 Insertion hole 125 Bending part 126 Gap 130 Reinforcing rib 140 Fixed piece 141 Locking projection 142 Insertion projection 143 Coupling hole 200 Column 201, 202 Coupling holes

Claims

1. A foundation structure for a solar power generation structure for installing a support column of the solar power generation structure, comprising a foundation pile buried in the ground with its upper end exposed and installed on the ground, and a plurality of support piece portions protruding upward side by side from both sides of the upper end of the foundation pile to support both side surfaces of a support column erected on the foundation pile, a receiving piece portion protruding from the lower end of each support piece portion toward the opposing support piece portion side to support the lower surface of the support column erected on the foundation pile is provided, and a bent portion that is bent outward and protrudes is formed at the lower part of each support piece portion close to the receiving piece portion. Since the support piece portion above the bent portion has elasticity to be bent, the support piece portion screwed to the support column is provided in a state of being in surface contact with the support column, A foundation structure for a solar power generation structure, in which a separated gap is formed between two receiving piece portions and is provided so that liquid foreign matter can flow down and be discharged.

2. The foundation structure for a solar power generation structure according to claim 1, wherein a coating layer coated with molten zinc is formed on the surfaces of the foundation pile, the support piece portion, and the receiving piece portion constituting the foundation structure.

Images