Hinge-type joint member for solar power generation mounting base and mounting base tilt-up system

Abstract

When erecting the frame of a ground-mounted solar power generation facility, this system makes it possible to erect the frame from an assembled state above the ground, improving work efficiency and improving construction safety by reducing work at height. [Solution] A platform foundation connecting member and a platform tilt-up system using this member are provided, which use a hinge-type connecting member that rotatably connects the platform support pillars and foundation piles, and which allows the platform to be assembled above the ground and then efficiently and safely raised from a lying position using a hydraulic device and an expandable member.

Description

[Technical Field]

[0001] The present invention relates to a hinge-type connecting member that rotatably connects the support columns and foundation piles of a ground-mounted solar power generation facility frame, and a system for efficiently and safely erecting a frame that has been constructed above the ground and is lying down using the connecting member.

[0002] In this specification, "above the ground" is defined to include not only the ground surface but also the spatial region above the ground surface. Specifically, it also includes the spatial region in which the platform, before being erected, is supported by temporary materials or the like and held at a predetermined distance from the ground surface. In addition, in this specification, "platform" refers to a support structure for mounting solar panels, but is defined to include not only the support structure alone but also the structure with solar panels mounted thereon. [Background technology]

[0003] Ground-mounted solar power generation facilities are not installed on the roofs or walls of buildings, but are constructed by installing a mounting system on the ground and attaching solar panels to the mounting system. This type of facility is installed on a variety of sites, including farmland, forests, developed land, unused land, industrial sites, and former residential areas. In addition, so-called mega solar power generation facilities and small- to medium-sized ground-mounted solar power generation facilities are both classified as ground-mounted solar power generation facilities. Such ground-mounted solar power generation facilities generally have a mounting system installed on pile foundations or concrete foundations, and solar panels are attached to the mounting system.

[0004] The mounting base for ground-mounted solar power generation equipment is constructed with a frame structure, with pillars, beams, purlins, braces, etc. as the main components, resting on pile foundations or spread foundations, and is generally over 1m high. In snowy regions, the height may be set to over 2m to accommodate snow loads and ease of maintenance. Also, in agricultural solar power generation equipment, known as solar sharing, where solar panels are installed in the space above farmland and agriculture is carried out in the space below, it is necessary to ensure the amount of sunlight necessary for crops and also to ensure that agricultural machinery such as tractors can travel without hindrance. For this reason, there are known examples where the mounting base is approximately 4m high.

[0005] A common construction method for such tall platforms is to use construction machinery, taking construction efficiency into consideration. Specifically, a mobile crane is used to lift the support columns and then install them into the heads of previously installed foundation piles. In narrow sites where it is difficult to bring in a mobile crane, a small backhoe is used with a lifting device attached to its arm, which is then used to lift the support columns and install them into the heads of the piles. Similarly, when the foundation is a concrete spread foundation, these construction machinery are also commonly used to lift the support columns and install them into the foundation. After installing the support columns, the superstructure, including the beams, braces, and purlins, is assembled in sequence, and finally the solar panel is installed. Because the assembly of these superstructures and the installation of the solar panel require work at high altitudes, mobile work platforms and elevating work vehicles are often used.

[0006] When erecting pillars using construction machinery in this way, various problems may arise, including the following: (1) The work itself is difficult on narrow or sloping ground where there is insufficient space for the crane's turning radius or for deploying the outriggers. (2) To ensure the crane's stability, protective measures such as laying steel plates on the ground surface are required, which increases the construction process. (3) Lifting work and installation work at high altitudes are easily affected by strong winds, and work must be suspended during strong winds, making the construction schedule unstable. (4) When hoisting pillars using a crane, it is difficult to fine-tune the alignment when attaching them to the foundation piles, and the pile cores and fastening holes are likely to become misaligned. (5) There is a risk of accidents, such as the falling of lifted pillars or components, or of workers falling, which increases the cost and effort required for safety management to avoid these risks.

[0007] Furthermore, when erecting the mounting frame for an agricultural solar power generation system using construction machinery, in addition to the problems mentioned above, the following problems specific to agricultural land may arise: (a) The movement and rotation of construction machinery may excessively compact the topsoil and subsoil, inhibiting the root growth of crops and reducing the soil's permeability and breathability, which may lead to oxygen deficiency, root rot, and poor drainage. (b) The organic matter and microbial layers in the soil may be disturbed or destroyed, resulting in a decrease in soil fertility. (c) Rainwater may collect along the crawler tracks and tire marks of construction machinery, causing topsoil erosion. (d) Contact with construction machinery may damage the ridges, resulting in the loss of the drainage structure of the farmland plots. (e) To repair the above-mentioned deterioration of the soil environment and damage to the ridges, work such as adding soil, spreading soil improvement materials, and rebuilding the ridges may be required, which increases the construction process and restoration costs.

[0008] Therefore, as a means for solving some of the above-mentioned problems, Patent Document 1 discloses a related technique. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent Publication No. 2021-007288 Summary of the Invention [Problem to be solved by the invention]

[0010] In the foundation structure of the agricultural solar power generation structure disclosed in Patent Document 1, support members (pillars) lying on farmland are fixed to fastening assembly members, which are part of the foundation structure, via fixing bolts. The support members are then rotated and erected using these fixing bolts as fulcrums. However, a stopper mechanism for reliably maintaining the support members in a vertical position is not provided. Therefore, it is difficult to rotate the support members while lifting them with a crane and erect them vertically relative to the installation surface. As a result, a ground support member must be installed separately from the fastening assembly members to maintain the vertical position, which increases the number of parts and increases the time and effort required for erection work.

[0011] Furthermore, the fastening support members and ground support members fixed to the support members are not designed to allow for fine adjustment of their positioning. Therefore, even if the foundation piles are installed out of position, the members cannot be realigned, necessitating the re-driving of the foundation piles. As a result, while this structure is suitable for direct concrete foundations or for driving directly into farmland, it is not suitable for installing support members at the tops of the foundation piles. Furthermore, when erecting agricultural solar power generation structures using construction machinery, the aforementioned construction problems specific to construction machinery may occur.

[0012] Therefore, in order to solve these problems, the present invention provides a system in which a fixed part and a movable part are rotatably connected via a hinge mechanism, a structure in which the fastening holes are elongated, and further, a system in which a platform lying above the ground can be raised by a hydraulic device without using construction machinery. [Means for solving the problem]

[0013] The mounting foundation joint member according to claim 1 is composed of a fixed part fixed to the pile head of the foundation pile, a movable part fixed to both the pile head and the support, and a pivot shaft that rotatably connects the fixed part and the movable part via a hinge mechanism, The movable part is composed of a horizontal plate fixed to the pile head and a vertical plate fixed to the support, and the vertical plate is connected to the horizontal plate at a substantially right angle, and is formed as a pair on both sides of the fixed part in a plan view. The fixing portion is formed with a pile head fastening hole through which a fastening member for fixing to the pile head is inserted, The horizontal plates of the movable part are formed with pile head fastening holes through which fastening members for fixing to the pile head are inserted, and the vertical plates are formed with support fastening holes through which fastening members for fixing to the support are inserted. In this specification, the term "pile head" refers to the top of the foundation pile, which is provided with fastening holes for fastening the horizontal plates of the fixed and movable parts, i.e., the so-called flange structure part (the same applies hereinafter). Also, the term "pillar" refers to the pillar member that constitutes the frame (the same applies hereinafter).

[0014] The frame foundation joint member according to claim 2 is characterized in that the pile head fastening holes formed in the horizontal plates of the fixed part and the movable part of the frame foundation joint member according to claim 1 are elongated holes.

[0015] The mount tilt-up system according to claim 3 is a system for raising a mount of a ground-mounted solar power generation facility lying above the ground, The frame foundation joint member according to claim 1, a hydraulic device, an expansion and contraction member, and an oil supply pipe are included, The fixed part of the frame foundation joint member is fixed to the pile head, and the vertical plate of the movable part is fixed to the lower end of the support. One end of the telescopic member is attached to a predetermined position on the support so that the end can rotate freely, and the other end is placed on the ground so that the end can rotate freely, The hydraulic system and the expansion member are connected by an oil supply pipe. By driving the hydraulic device, hydraulic oil is supplied to the telescopic member through the oil supply pipe, the hydraulic pressure generated by this supply causes the telescopic member to extend, and the mechanical force generated by this extension is transmitted to the support, thereby raising the platform lying above the ground.

[0016] The mount tilt-up system according to claim 4 is a system for raising a mount of a ground-mounted solar power generation facility lying above the ground, The frame foundation joint member according to claim 2, a hydraulic device, an expansion and contraction member, and an oil supply pipe are included, The fixed part of the frame foundation joint member is fixed to the pile head, and the vertical plate of the movable part is fixed to the lower end of the support. One end of the telescopic member is attached to a predetermined position on the support so that the end can rotate freely, and the other end is placed on the ground so that the end can rotate freely, The hydraulic system and the expansion member are connected by an oil supply pipe. By driving the hydraulic device, hydraulic oil is supplied to the telescopic member through the oil supply pipe, the hydraulic pressure generated by this supply causes the telescopic member to extend, and the mechanical force generated by this extension is transmitted to the support, thereby raising the platform lying above the ground.

[0017] The gantry tilt-up system according to claim 5 is a gantry tilt-up system according to claim 3 to which a tilting device is added, The tilt device is composed of a tilt sensor and a data processing device. The tilt sensor is installed at a predetermined position on the mount. As the platform is raised, the tilt angle of the platform is successively measured by a tilt sensor, and the measurement data is transmitted to a data processing device.

[0018] The gantry tilt-up system according to claim 6 is a gantry tilt-up system according to claim 4 to which a tilting device is added, The tilt device is composed of a tilt sensor and a data processing device. The tilt sensor is installed at a predetermined position on the mount. As the gantry is being raised, the tilt angle of the gantry is successively measured by an inclination sensor, and the measurement data is transmitted to a data processing device.

[0019] The gantry tilt-up system according to claim 7 is the gantry tilt-up system according to claim 5 or 6, characterized in that the hydraulic device is automatically stopped when the tilt angle of the gantry reaches a predetermined reference value. [Effects of the Invention]

[0020] The frame foundation joint member of the present invention has a structure in which a fixed part fixed to the pile head and a movable part fixed to the support are rotatably connected via a hinge mechanism. Therefore, when the frame lying on the ground is raised, the fixed part is fixed to the pile head, so the frame does not shift position. Furthermore, by abutting the pile head while rotating, the movable part functions as a stopper, allowing the frame to be raised to an upright position automatically.

[0021] Furthermore, the frame foundation joint member of the present invention has a fixed part and a movable part that are integrally constructed via a pivot shaft, so only one main part is required, making the joining work easy. Furthermore, by making the fastening holes elongated, it is possible to adjust the position of the frame at the pile head. Therefore, even if the foundation pile is installed slightly off-position, it can be re-aligned on the frame side without the need for major work such as re-driving the foundation pile.

[0022] The platform tilt-up system of the present invention uses a small-scale facility consisting of the platform foundation joint members, a hydraulic device, an expansion member, and an oil supply pipe to raise the platform lying above the ground. This eliminates the need to bring construction machinery to the installation site of the solar power generation facility, and eliminates the problems specific to construction machinery described in "0006" and "0007" in the background art.

[0023] Furthermore, this system allows the platform to be erected after being assembled above ground level, significantly reducing the number of work processes at high altitudes. As a result, work efficiency is improved and the risk of lifted materials falling or workers falling is reduced, resulting in reduced safety measures costs. Furthermore, by attaching a tilting device to the platform, it is possible to stop the operation of the hydraulic system once the platform reaches an upright position. This prevents system malfunctions and enables safe and secure erection work. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a schematic diagram showing a part of the overall layout of a ground-mounted solar power generation facility. [Figure 2] FIG. [Figure 3] 1A and 1B are diagrams of a gantry foundation joint member of embodiment 1, in which FIG. 1A is a plan view, FIG. 1B is a side view as viewed from the arrow b, and FIG. 1C is a side view as viewed from the arrow c. [Figure 4] FIG. 10 is a perspective view showing the operation of the gantry foundation joint member of the first embodiment. [Figure 5] 1A and 1B are diagrams showing the joined state of the gantry foundation joint member of embodiment 1, where FIG. 1A is a plan view, FIG. 1B is a side view as viewed from the arrow b, and FIG. 1C is a side view as viewed from the arrow c. [Figure 6] FIG. 10 is a plan view illustrating the shapes, arrangements, and numbers of various pile head fastening holes in the frame foundation joint members. [Figure 7] 10A and 10B are diagrams of a frame foundation joint member of embodiment 2, in which FIG. 10A is a plan view, FIG. 10B is a side view as viewed from the arrow b, and FIG. 10C is a side view as viewed from the arrow c. [Figure 8] FIG. 10 is a perspective view showing the operation of the gantry foundation joint member of the second embodiment. [Figure 9] 10A and 10B are diagrams showing the joined state of the frame foundation joint member of embodiment 2, where FIG. 10A is a plan view, FIG. 10B is a side view as viewed from the arrow b, and FIG. 10C is a side view as viewed from the arrow c. [Figure 10] FIG. 10 is a perspective view showing a joined state of the gantry foundation joint member of the second embodiment. [Figure 11] FIG. 10 is a plan view showing an example of an adjustment mode for the position of the pedestal foundation joint member. [Figure 12] FIG. 1 is a configuration diagram of a gantry tilt-up system. [Figure 13] 10A to 10C are diagrams schematically showing a process of erecting the pedestal. [Figure 14] 14A to 14C are diagrams showing a process of erecting the pedestal, which is a continuation of the process shown in FIG. 13. [Figure 15] 10A and 10B are diagrams showing the connection state of both ends of the expandable member, in which FIG. 10A shows the connection state with the support, and FIG. 10B shows the connection state with the base plate. [Figure 16] 10 is a flowchart showing a construction procedure using the gantry tilt-up system of the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, embodiments of a gantry foundation connection member and a gantry tilt-up system according to the present invention will be described with reference to the drawings. The main technical idea of ​​the present invention is to enable a gantry lying above the ground to be raised upright by rotatably connecting a fixed part and a movable part via a hinge mechanism. Therefore, the gantry foundation connection member of the present invention is not limited to the illustrated form, but includes all forms having a configuration in which a fixed part and a movable part are rotatably connected via a hinge mechanism.

[0026] First, the frame foundation joint member according to the present invention will be described. The frame foundation connecting member of the present invention is a member for connecting the support columns that constitute the frame to the foundation piles, and has a rotatable structure using a hinge mechanism so that the frame, which has been assembled in advance and laid down above the ground, can be erected onto the heads of the foundation piles. Note that the foundation piles to which the frame foundation connecting member of the present invention is applied must have a flange structure with holes formed in their heads through which fastening members for fixing the frame support columns can be inserted.

[0027] Fig. 2 is a side view of the frame, showing the frame in an erected state. As shown in Fig. 2, the foundation piles 30 and the columns 60 are joined via frame foundation joint members 50. The frame shown in Fig. 2 is an example of a frame structure whose main components are the columns 60, purlins 71, beams 72, and braces 73. However, the configuration of the frame is not limited to this, and frames of other configurations may be used as long as they can be erected using the frame foundation joint members 50 according to the present invention.

[0028] <Frame foundation joint member of embodiment 1> The following description will be given with reference to FIGS. As shown in Figures 3 and 4, the frame foundation connection member 50a of the first embodiment is a rectangular member in plan view formed by combining plate-like bodies, and is composed of a fixed portion 51 located in the center and a pair of movable portions 52 located on both sides of the fixed portion 51. The movable portion 52 is composed of a horizontal plate 52a and a vertical plate 52b, and the vertical plate 52b is connected to the horizontal plate 52a approximately perpendicularly. The horizontal plate and the vertical plate may be integrally formed by cutting or casting, or may be joined by welding. The formation method is not particularly limited as long as the required strength is ensured.

[0029] The fixed part 51 and the movable part 52 are connected at their ends on the same side by a rotation shaft 53, and the pair of movable parts 52 are structured to rotate in unison around this rotation shaft 53.

[0030] As shown in Figure 5, the size of the frame foundation joint member 50a is approximately the same as that of the pile head 31. However, there are no particular limitations on the size as long as the function of the frame foundation joint member 50a is properly performed. Furthermore, although metal is generally used as the material, there are no particular limitations on the material as long as the function of the joint member 50a is not impaired.

[0031] 3 and 4, the fixed part 51 is formed with a pile head fastening hole 54a for fastening to the pile head 31. Meanwhile, the horizontal plate 52a of the movable part 52 is formed with a pile head fastening hole 55a for fastening to the pile head 31. Furthermore, the vertical plate 52b of the movable part 52 is formed with a support fastening hole 55c for fastening to the support 60.

[0032] As shown in Figures 3 and 4, the pile head fastening holes 54a, 55a are circular in plan view, and two are formed in each of the fixing portion 51 and the horizontal plate 52a. However, as long as the frame 40 can be firmly joined to the foundation pile 30, the shape, size, number, and arrangement of these fastening holes (hereinafter referred to as "shape" in the description of the fastening holes) are not particularly limited. For example, other shapes as shown in Figure 6 may be used depending on the shape of the pile head flange 31 and the shape of the pile head flange hole 32. Furthermore, the shape of the support fastening holes 55c is circular in front view, and two are formed, but as long as the frame 40 can be firmly joined to the foundation pile 30, the shape is similarly not limited.

[0033] Next, a description will be given including FIG. 13 and FIG. 13 and 14, the fixed part 51 is fixed to the pile head 31 of the foundation pile 30 installed above the ground, while the vertical plate 52b of the movable part 52 is fixed to the lower end of the support 60 of the frame 40 which has been assembled in advance in a lying state above the ground. Also, as shown in Fig. 5, the fixed part 51 and the pile head 31 are fixed together using fastening members 56 (bolts, nuts, etc.). Specifically, the fastening members 56 are inserted into the pile head fastening holes 54a formed in the fixed part 51 and the pile head flange holes 32 formed in the pile head flange 31, and then fastened together.

[0034] As shown in FIG. 5, the vertical plate 52b of the movable part 52 is fixed to the support 60 by inserting a fastening member 57b (bolt, nut, etc.) into the support fastening hole 55c formed in the vertical plate 52b and a fastening hole (not shown) formed in the support 60, and fastening them together.

[0035] As shown in Figures 13 and 14, the fixed part 51 is fixed to the pile head 31, and the vertical plate 52b of the movable part 52 is fixed to the support 60, and then the platform 40 lying above the ground is erected. In the process of erecting the platform 40, the hinge mechanism causes the movable part 52, to which the support 60 is fixed, to rotate about the rotation axis 53 toward the foundation pile 30, and the horizontal plate 52a abuts against the pile head 31. When the horizontal plate 52a touches the pile head 31, the erection of the platform is completed. Note that because the vertical plate 52b of the movable part 52 is formed approximately perpendicular to the horizontal plate 52a, when the horizontal plate 52a touches the pile head 31, the support 60 fixed to the vertical plate 52b also inevitably stands approximately perpendicular to the foundation pile 30.

[0036] Thereafter, the horizontal plate 52a of the movable part 52 is fixed to the pile head 31. As shown in Fig. 5, the horizontal plate 52a is fixed to the pile head 31 by inserting fastening members 57a (bolts, nuts, etc.) into the pile head fastening holes 55a formed in the horizontal plate 52a and the pile head flange holes 32 formed in the pile head flange 31, and fastening them together. This ensures that the frame 40 is securely joined to the foundation pile 30.

[0037] <Frame foundation joint member of embodiment 2> The following description will be given with reference to FIGS. As shown in Figures 7 and 8, the frame foundation connection member 50b of the second embodiment is characterized in that the pile head fastening holes 54 formed in the fixed part 51 in the first embodiment and the pile head fastening holes 55 formed in the horizontal plate 52a of the movable part 52 are elongated. By making the pile head fastening holes 55 elongated, the fixing position of the frame foundation connection member can be adjusted, and even when the frame foundation connection member is moved, fastening members can be easily inserted and fixed to the pile head. Note that although the frame foundation connection member can be moved in the first embodiment as well, the range of movement is limited compared to the second embodiment. Below, the differences from the first embodiment will be explained.

[0038] The pile head fastening holes 54b of the fixed part 51 and the pile head fastening holes 55b formed in the horizontal plates 52a of the movable part 52 each have an arched capsule shape, and two of each are formed. As shown in Figures 9 and 10, the pile head fastening holes 54b of the fixed part are provided with a clearance area that allows for position adjustment when inserting the fastening members 56. Similarly, the pile head fastening holes 55b formed in the horizontal plates 52a of the movable part 52 are also provided with a clearance area that allows for insertion of the fastening members 57a. Therefore, even after the frame 40 is erected on the foundation pile 30, the frame 40 can be moved on the pile head 31 to adjust its position by loosening the fastening members 56 of the fixed part 51 that are fixed to the pile head 31.

[0039] The range within which the frame 40 fixed to the frame foundation connecting member 50b can move on the pile head 31 is determined by the shapes of the pile head fastening holes 54b, 55b and the pile head flange holes 32. As shown in FIG. 11 , when the pile head fastening holes 54b, 55b are elongated holes and the pile head flange holes 32 are also elongated holes formed in multiple locations, the frame foundation connecting member 50b fixing the frame 40 can be moved over a relatively wide range in various two-dimensional directions on a plane, such as left and right, up and down, and circumferential directions. However, in order to firmly connect the frame 40 to the foundation pile 30, it goes without saying that the frame foundation connecting member 50b must be moved within a range within which it does not deviate significantly from the pile head 31. Note that the shape of the pile head flange holes 32 shown in FIG. 11 is merely an example and is not limited to the illustrated shape.

[0040] Therefore, by making the pile head fastening holes 54b, 55b elongated holes, even if the foundation pile 30 is installed slightly deviated from the designed position, it is not necessary to re-drive the foundation pile 30, and it is possible to move the frame 40 on the pile head 31 and join it. Furthermore, even in cases where it is difficult to install the foundation pile in the designed position without error, such as on steeply sloping ground, or even in cases where the shapes of the pile head flange 31 and pile head flange hole 32 are variously different, the configuration of the present invention, which has an adjustment function using elongated holes, can flexibly accommodate such cases.

[0041] It should be noted that the shape of the long hole shown in the figure is merely one example, and other shapes may be adopted as long as the structure can achieve the original purpose of moving the frame foundation joint member 50b, to which the frame 40 is fixed, on the pile head 31 and adjusting the positional deviation of the foundation pile 30.

[0042] Next, the platform tilt-up system of the present invention will be described. The platform tilt-up system of the present invention is a system for erecting the platform 40, which is assembled and lying on the ground, onto the foundation piles 30 by using the platform foundation joint members 50a and 50b described above.

[0043] In the following, unless otherwise specified, the gantry foundation joint member will be referred to as the "gantry foundation joint member 50" as it is common to both the first and second embodiments. Furthermore, "tilt-up" refers to the process of erecting a gantry that has been assembled while lying on the ground. Therefore, in this specification, the term "gantry tilt-up system" refers to a device for erecting a gantry that has been assembled and lying above the ground.

[0044] <Base tilt-up system of embodiment 1> The following description will be given based on FIGS. FIG. 12 is a diagram showing the configuration of the platform tilt-up system, illustrating the platform 40 standing on the foundation piles 30. As shown in FIG. 12, this system is configured with a platform foundation connecting member 50, a hydraulic device 80, an expansion / contraction member 81, and an oil supply pipe 82. The hydraulic device 80 and the expansion / contraction member 81 are connected as a hydraulic circuit via the oil supply pipe 82. The base end of the expansion / contraction member 81 is placed on the ground surface, and the tip end is connected to a predetermined position on the support 60. Here, the "predetermined position" means a position where the expansion / contraction member 81 can be smoothly extended to smoothly raise the platform 40 without placing an excessive load on the expansion / contraction member 81.

[0045] The hydraulic device 80, telescopic member 81, and oil supply pipe 82 used in the platform tilt-up system of the present invention are not permanently installed, but are repurposed to sequentially erect multiple platforms at a single site. For this reason, it is preferable that the hydraulic device 80 be a small, lightweight, portable hydraulic unit that can be easily moved around the site. For this reason, the hydraulic device 80 has the same configuration as hydraulic units commonly used at construction sites, and includes a small hydraulic pump, an electric motor, a hydraulic oil tank, a hydraulic oil filter, a pressure regulating valve, a flow regulating valve, and an operating valve.

[0046] These basic components may have the same specifications as hydraulic units commonly used at construction sites, and examples are shown below. (1) The hydraulic pump can be an electrically driven gear pump or vane pump. (2) The electric motor can be a motor that operates on AC 100V or AC 200V commercial power, and if it is difficult to secure power at the construction site, a generator can be used to supply power. (3) A small hydraulic oil tank with a capacity of approximately 10 to 20 liters is sufficient. (4) The operating valve can be a manual lever-type three-position valve, and it is sufficient if it can be switched between extending the rod of the telescopic member 81, stopping the oil supply, and returning the hydraulic oil to the tank. Note that the specifications are not limited to those described above, and hydraulic units of other specifications may be used as long as they can reliably and safely erect the platform.

[0047] The telescopic member 81 may be of a simple structure commonly used on construction sites, such as a multi-stage or telescopic hydraulic cylinder. In this case, the hydraulic cylinder may have an internal piston section that receives hydraulic oil supplied from the hydraulic device 80 via an oil supply pipe 82, and a rod section that extends in multiple stages due to the hydraulic pressure of the piston section. However, the telescopic member is not limited to these, and other telescopic members may be used as long as they can reliably and safely erect the platform.

[0048] For the oil supply pipe 82, a hydraulic hose generally used at construction sites can be used, but because it must be able to withstand high pressure, it is preferable to use a pressure-resistant hose specifically designed for hydraulics, such as one made of high-pressure-resistant rubber. Also, because oil supply pipes 82 are frequently replaced or moved at construction sites, it is preferable for the oil supply pipe 82 to have a structure that allows easy attachment and detachment between the hydraulic device 80 and the expandable member 81.

[0049] 13 to 15, an example of a process for erecting the frame 40 lying above the ground onto the foundation pile 30 using the frame tilt-up system according to the present invention will be described. First, as shown in Fig. 13(b), the fixing portion 51 of the frame foundation connecting member 50 is fixed to the pile head 31 of the foundation pile 30 that has been installed in advance. This fixing is performed by inserting fastening members 56 into the pile head fastening holes 54 formed in the fixing portion 51 and the pile head flange holes 32 of the foundation pile 30, and then fastening the fastening members 56.

[0050] Next, the vertical plate 52b of the movable part 52 is fixed to the lower end of the support 60 lying above the ground. This fixing is performed by inserting fastening members 57b into support fastening holes 55c formed in the vertical plate 52b of the movable part 52 and fastening holes provided in the support 60, and fastening the fastening members 57b. In addition, the support 60 lying above the ground is supported by temporary support members 87. This temporary support member 87 may have any structure as long as it can temporarily support the platform 40.

[0051] Next, as shown in Fig. 13(c), various components that constitute the frame of the mount are attached to the top of the support pole 60 lying above the ground, and then the solar cell panel 20 is attached to assemble the mount 40. After that, as shown in Fig. 13(d), the mount tilt-up system according to the present invention is placed.

[0052] Since the extendable member 81 tilts as it extends during the process of raising the platform 40 using the platform tilt-up system, it is necessary to design the base end and tip end of the extendable member 81 so that they can rotate freely. For this reason, the base end of the extendable member 81 is rotatably supported on the ground surface, and the tip end is rotatably attached to a predetermined position on the support column 60.

[0053] The connection state of both ends of the telescopic member 81 will be described with reference to Figure 15. Figure 15 is a diagram showing the connection structure of both ends of the telescopic member 81, with (a) showing the connection structure with the support 60 and (b) showing the connection structure with the base plate. The tip connection structure 85 with the support 60 shown in Figure 15(a) is first performed by attaching a clamp 85a to the support 60. The attachment is performed by inserting a fastening member 85c (bolt, nut, etc.) into an ear plate 85b of the clamp 85a and fastening the fastening member 85c. Furthermore, the rod tip 81a is fitted into a bracket 85d, and a rotation shaft 85e (pin, etc.) is inserted through it, so that the rod tip 81a is rotatably connected to the bracket 85d.

[0054] On the other hand, the structure for placing the base end of the telescopic member 81 on the ground surface is a base end connecting structure 86 shown in Figure 15(b). The telescopic member base end 81b is fitted into a bracket 86c provided on a base plate 86a, and a rotation shaft 86b (pin or the like) is inserted through it, thereby rotatably connecting the telescopic member base end 81b to the base plate 86a. Furthermore, anchor bolts (not shown) are inserted into anchor bolt holes 86d of the base plate 86a, and the base plate 86a is fixed to the ground surface by the anchor bolts. Note that the tip connecting structure 85 and base end connecting structure 86 described above are examples, and other structures may be used as long as they can rotatably connect the telescopic member 81.

[0055] The operating sequence of this system after the platform tilt-up system has been installed will be explained with reference to Figure 14(e). First, the start switch for the electric motor of the hydraulic device 80 is turned on to operate the hydraulic pump. Next, the operating valve is opened to supply hydraulic oil from the hydraulic oil tank to the extendable member 81 via the oil supply pipe 82. Upon receiving the hydraulic oil, the extendable member 81 extends while supporting the platform 40, which gradually rises. The operator visually checks the position of the platform 40 and operates the system so that the platform 40 rises slowly.

[0056] As shown in Figure 14(f), once the frame 40 is upright, the operating valve is closed to stop the supply of oil to the telescopic member 81, thereby stopping the extension of the telescopic member 81. After that, for safety reasons, the electric motor of the hydraulic device 80 is stopped. Next, the lower ends of the supports 60 of the frame 40 standing on the foundation pile 30 are fixed to the horizontal plates 52a of the movable parts 52 of the frame foundation connecting members 50. Fixing is performed by inserting the fastening members 57a into the pile head fastening holes 55 of the horizontal plates 52a and the pile head flange holes 32 of the foundation pile 30 and tightening the fastening members 57a.

[0057] If the erected position of the foundation pile 30 deviates from the reference position, first, loosen the fastening members 56 at the fixed parts 51 of the frame foundation joint members 50 fixed to the pile head 31, and move the position of the frame 40 to the reference position. Then, firmly fix the fixed parts 51 and the horizontal plates 52a of the movable parts 52 to the pile head 31. Such adjustment of the erected position can be easily performed because the pile head fastening holes 54, 55 formed in the fixed parts 51 of the frame foundation joint members 50 and the horizontal plates 52a of the movable parts 52 are elongated holes.

[0058] 14(g), after the mount 40 is joined to the foundation pile 30, the expansion and contraction member 81 is removed, and the mount tilt-up system of the present invention is moved to the position for erecting the next mount 40. Thereafter, the mounts 40 are erected in the same manner.

[0059] <Gantry Tilt-Up System of Embodiment 2> The following description will be given with reference to FIGS. The gantry tilt-up system of embodiment 2 has a configuration in which a tilting device is added to the gantry tilt-up system of embodiment 1. Note that the tilting device shown below is an example, and any tilting device having similar functions is not limited to the form shown below. The tilting device is basically composed of a tilt sensor 83 and a data processing device 84, and an alarm device (not shown) may be added as necessary. Data is transmitted and received between the tilt sensor 83 and the data processing device 84 via wireless or wired communication. The tilt sensor 83 is an electronic sensor that detects the tilt angle in real time as the gantry lying above the ground rises and transmits the angle data as an electrical signal. Note that the tilt sensor 83 may also be a type that can detect and transmit the tilt direction, angular velocity, etc.

[0060] The data processing device 84 basically comprises a display device and a recording device. The display device displays the current tilt angle of the pedestal 40 in real time and displays a message such as "standing upright" when the tilt angle of the pedestal 40 reaches a preset reference angle. An HMI, a PC monitor, or the like can be used as the display device. The recording device may be configured to automatically record data such as the time from when the standing action of the pedestal 40 starts until the standing action is completed, the tilt angle, and the like. For example, the recording medium may be an internal storage, an SD card, or a method of automatically recording to a cloud server.

[0061] 12, in order to make it easier to detect even a small tilt angle of the mount 40, the tilt sensor 83 is preferably attached at a position as far away as possible from the rotation axis 53, which serves as the fulcrum for the rotation of the mount 40 relative to the foundation pile 30. In addition, it is desirable to set the threshold value set for the tilt sensor 83 based on the tilt angle when the mount 40 is upright.

[0062] The tilt sensor 83 can be attached to the support 60 in any manner that ensures close contact between the bottom of the sensor and the support 60, prevents slippage, and allows for easy removal. For example, a stainless steel band may be wrapped around the support 60 and a bracket plate attached to the tilt sensor 83 may be fixed to the stainless steel band, or a base with a strong magnet may be attached to the bottom of the tilt sensor 83 so that it adheres to the support 60. If there is a risk of twisting of the support 60, the tilt sensor 83 may be attached to a highly rigid beam 72 or the like in a position based on the direction of gravity.

[0063] 13 and 14, the operation of the tilting device begins with the hydraulic device 80 first being driven, and the tilt sensor 83 successively detecting the tilt angle of the gantry 40 as the gantry 40 gradually rises. The tilt sensor 83 may be capable of detecting the tilt direction, angular velocity, etc. as needed, and transmits the detected data to a data processing device 84 via wireless or wired communication at regular intervals.

[0064] The data processing device 84 displays the data received from the tilt sensor 83 on the display device in real time, and records the data in a recording device in association with the measurement time. While the platform 40 is being raised, the received data on the display device is updated successively. When the platform 40 is in an upright position, the tilt sensor 83 sends a signal indicating the upright position to the data processing device 84, and in response to this signal, a message such as "Upright position completed" is displayed on the display device. The operator confirms this display and stops the hydraulic device 80, thereby halting the operation of the telescopic member 81.

[0065] When transmitting measurement data from the tilt sensor 83 wirelessly, a communication method such as Wi-Fi is used. However, depending on the site environment or weather, radio waves may be interrupted or communication may be delayed. As a result, even if the platform 40 is already upright, data indicating the upright state may not be transmitted to the data processing device 84, and the hydraulic device 80 may not be stopped. As a countermeasure against such troubles, an alarm device may be linked to the data processing device 84. In this case, the alarm device may be configured to perform a fail-safe operation in the event of a malfunction or communication interruption, such as sounding a buzzer or turning on or flashing a light to notify the operator of an abnormality.

[0066] <Base tilt-up system of embodiment 3> The gantry tilt-up system of embodiment 3 is configured such that, compared to the gantry tilt-up system of embodiment 2, it adds a function of automatically stopping the hydraulic device 80 when the tilt angle of the gantry 40 reaches a predetermined reference value. This automatic stop function is configured such that a data processing device 84 and the hydraulic device 80 are connected via a signal line, and the data processing device 84 can output a stop signal to the hydraulic device 80. Note that the "predetermined reference value" means a value corresponding to the state in which the gantry is upright. Furthermore, the automatic stop function described below is not limited to the form described below, as long as it has the same function.

[0067] When the pedestal 40 reaches an upright position, the tilt sensor 83 transmits detection data indicating the tilt angle of the pedestal 40 to the data processing device 84. When the data processing device 84 determines based on the received detection data that the pedestal 40 has reached an upright position, it outputs a stop signal from the control output unit to the hydraulic device 80. Upon receiving the stop signal, the hydraulic device 80 stops the extension operation of the telescopic member 81 by, for example, de-energizing the operating valve or shutting off the control circuit of the electric motor.

[0068] Furthermore, if necessary, an alarm device may be configured to activate simultaneously with the automatic stopping of the hydraulic device 80 when the platform 40 is in the upright position. In this case, the data processing device 84 and the alarm device are connected via a signal line, and the data processing device 84 is configured to be able to output a signal to the alarm device. When the platform 40 is in the upright position, the control output unit of the data processing device 84 sends an activation signal to the alarm device together with a stop signal to the hydraulic device 80. The alarm device that receives the activation signal may be configured to sound a buzzer or turn on or flash a light to notify the operator that the platform 40 is in the upright position. [Industrial Applicability]

[0069] The mounting base connection member and mounting base tilt-up system of the present invention are hinged connection members that rotatably connect the support columns and foundation piles of a ground-mounted solar power generation facility, and can be suitably used as a system that uses these members to efficiently and safely erect a mounting base that is constructed and lying above the ground. [Explanation of symbols]

[0070] 10. Solar power generation facilities 20 solar panels 30 Foundation piles 31 Pile head (or pile head flange) 32 Pile head flange hole 40 Mounting stand 50 Frame foundation joint member (common) 50a Frame foundation joint member (embodiment 1) 50b Frame foundation joint member (embodiment 2) 51 Fixed part 52 Moving parts 52a Horizontal board 52b Vertical board 53 Rotating shaft 54 Pile head fastening hole of fixed part (common) 54a Pile head fastening hole of fixed part (embodiment 1) 54b Pile head fastening hole of fixed part (embodiment 2) 55 Pile head fastening hole of horizontal plate (common) 55a Pile head fastening hole of horizontal plate (embodiment 1) 55b Pile head fastening hole of horizontal plate (embodiment 2) 55c Vertical plate support fastening holes 56 Fastening member of fixed part 57 Fastening members for moving parts 57a Fastening members for horizontal plates 57b Fastening member for vertical plate 60 pillars 71 Purlin 72 Beam 73 Brace 80 Hydraulic system 81 Elastic member 81a Rod tip 81b base end of telescopic member 82 Oil pipe 83 Tilt Sensor 84 Data processing device 85 Tip connection structure 85a Pole Clamp 85b ear plate 85c Fastening member 85d bracket 85e Tip rotation axis 86 Proximal connection structure 86a base plate 86b Base end rotation axis 86c bracket 86d Anchor bolt hole 87 Temporary support members

Claims

1. A mounting base joining member for joining a support pillar and a foundation pile that constitute a mounting base of a ground-mounted solar power generation facility, The frame foundation joint member is composed of a fixed part fixed to the pile head of the foundation pile, a movable part fixed to both the pile head and the support, and a rotating shaft that rotatably connects the fixed part and the movable part via a hinge mechanism, The movable part is composed of a horizontal plate fixed to the pile head and a vertical plate fixed to the support, and the vertical plate is connected to the horizontal plate at a substantially right angle, and is formed as a pair on both sides of the fixed part in a plan view, The fixing portion is formed with a pile head fastening hole through which a fastening member for fixing to the pile head is inserted, A mounting base joining member characterized in that the horizontal plates of the movable part are formed with pile head fastening holes through which fastening members for fixing to the pile heads are inserted, and the vertical plates are formed with pillar fastening holes through which fastening members for fixing to the pillars are inserted.

2. A mounting base joining member for joining a support pillar and a foundation pile that constitute a mounting base of a ground-mounted solar power generation facility, The frame foundation joint member is composed of a fixed part fixed to the pile head of the foundation pile, a movable part fixed to both the pile head and the support, and a rotating shaft that rotatably connects the fixed part and the movable part via a hinge mechanism, The movable part is composed of a horizontal plate fixed to the pile head and a vertical plate fixed to the support, and the vertical plate is connected to the horizontal plate at a substantially right angle, and is formed as a pair on both sides of the fixed part in a plan view, The fixing portion is formed with a pile head fastening hole through which a fastening member for fixing to the pile head is inserted, The horizontal plate of the movable part is formed with a pile head fastening hole through which a fastening member for fixing to the pile head is inserted, and the vertical plate is formed with a support fastening hole through which a fastening member for fixing to the support is inserted, The mounting foundation joint member is characterized in that the pile head fastening holes formed in the horizontal plates of the fixed part and the movable part are elongated holes.

3. A system for raising a ground-mounted solar power generation system frame lying above the ground, The frame foundation joint member according to claim 1, a hydraulic device, an expansion and contraction member, and an oil supply pipe are included, The fixed portion of the frame foundation joint member is fixed to the pile head, and the vertical plate of the movable portion is fixed to the lower end of the support pillar, One end of the telescopic member is attached to a predetermined position of the support so that the end can rotate freely, and the other end is placed on the ground so that the end can rotate freely, The hydraulic device and the telescopic member are connected by an oil supply pipe, By driving the hydraulic device, hydraulic oil is supplied to the telescopic member through an oil supply pipe, the telescopic member is extended by the hydraulic pressure generated by this supply, and the mechanical force generated by this extension is transmitted to the support, thereby raising the platform lying above the ground.

4. A system for raising a ground-mounted solar power generation system frame lying above the ground, The frame foundation joint member according to claim 2, a hydraulic device, an expansion and contraction member, and an oil supply pipe are included, The fixed portion of the frame foundation joint member is fixed to the pile head, and the vertical plate of the movable portion is fixed to the lower end of the support pillar, One end of the telescopic member is attached to a predetermined position of the support so that the end can rotate freely, and the other end is placed on the ground so that the end can rotate freely, The hydraulic device and the telescopic member are connected by an oil supply pipe, By driving the hydraulic device, hydraulic oil is supplied to the telescopic member through an oil supply pipe, the telescopic member is extended by the hydraulic pressure generated by this supply, and the mechanical force generated by this extension is transmitted to the support, thereby raising the platform lying above the ground.

5. A tilting device is added to the platform tilt-up system according to claim 3, The tilt device comprises a tilt sensor and a data processing device; The tilt sensor is installed at a predetermined position on the platform, A gantry tilt-up system characterized in that the tilt angle of the gantry is successively measured by the tilt sensor while the gantry is being raised, and the measurement data is transmitted to the data processing device.

6. A tilting device is added to the platform tilt-up system according to claim 4, The tilt device comprises a tilt sensor and a data processing device; The tilt sensor is installed at a predetermined position on the platform, A gantry tilt-up system characterized in that the tilt angle of the gantry is successively measured by an inclination sensor while the gantry is being raised, and the measurement data is transmitted to the data processing device.

7. 7. The platform tilt-up system according to claim 5, wherein the hydraulic device is automatically stopped when the tilt angle of the platform reaches a predetermined reference value.

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