Offshore photovoltaic pile foundation installation retest tool

Abstract

The utility model provides an offshore photovoltaic pile foundation installation retest tool, and relates to the field of offshore photovoltaic technologies. The tool comprises a first support and a second support, the first support is of a central symmetry structure, a connecting part is arranged on one side of the first support, and the first support is detachably connected to a flange through the connecting part; the first end of the first connecting rod is connected to the center position of the first support, and the first connecting rod extends in the direction away from the flange from the first end; one end of the connecting assembly is connected with the second end of the first connecting rod, and the other end of the connecting assembly is provided with a hollow structure; the second support is arranged in the hollow structure in a sleeving manner, and the second support is provided with a connecting hole; the measuring instrument is connected with the second support through the connecting hole; the center lines of the first support, the first connecting rod, the connecting assembly, the second support and the measuring instrument coincide. The tool can measure the installation accuracy of the pile foundation, and can ensure the construction quality of offshore photovoltaic.

Description

Technical Field

[0001] This disclosure relates to the field of offshore photovoltaic technology, and more specifically, to a tooling for retesting the installation of offshore photovoltaic pile foundations. Background Technology

[0002] Photovoltaics (PV) is a power generation system that utilizes the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy. PV energy originates from solar energy, which is a clean, safe, and renewable energy source; therefore, PV power generation has promising application prospects. Given my country's vast sea area and the insufficient development of marine resources, combining marine resources with PV power generation represents a potentially valuable resource project.

[0003] Currently, offshore photovoltaic (PV) construction requires a large number of pile foundations as supporting structures. These pile foundations are fixed in the sea, serving as the basis for subsequent fixed construction. The location and installation reliability of these pile foundations in the sea not only determine their service life but also affect the overall layout and construction of the offshore PV system, thereby impacting the utilization rate of the sea area and construction efficiency.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of this, a re-measurement tool for offshore photovoltaic pile foundation installation is provided. This tool can measure the verticality and installation position of the pile foundation with high accuracy, thereby improving the accuracy of pile foundation installation, thus increasing the service life of the pile foundation, and ensuring the rationality of offshore photovoltaic layout.

[0006] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0007] According to one aspect of this disclosure, a fixture for re-testing the installation of offshore photovoltaic pile foundations is provided, wherein a flange is installed at the top of the pile foundation, and the fixture includes:

[0008] The first support has a centrally symmetrical structure and a connecting part is provided on one side of the first support. The first support is detachably connected to the flange through the connecting part.

[0009] A first link, the first end of which is connected to the center of the first support, and the first link extends from the first end in a direction away from the flange;

[0010] A connecting component, one end of which is connected to the second end of the first connecting rod, and the other end of which has a hollow structure;

[0011] The second support is fitted inside the hollow structure and has a connecting hole.

[0012] A measuring instrument, wherein the measuring instrument is connected to the second support through the connecting hole;

[0013] The center lines of the first support, the first connecting rod, the connecting assembly, the second support, and the measuring instrument coincide.

[0014] In one exemplary embodiment of this disclosure, the connecting assembly includes a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged parallel to each other, and the first connecting plate and the second connecting plate are connected by a plurality of connecting bolts, and there is a preset gap between the first connecting plate and the second connecting plate.

[0015] In one exemplary embodiment of this disclosure, the size of the preset gap is greater than or equal to a first size, where the first size is the size of the second support located within the hollow structure and extending into the preset gap.

[0016] In an exemplary embodiment of this disclosure, the first connecting plate and the second connecting plate have the same shape and both have a triangular shape, and each corner of the first connecting plate and the second connecting plate is arranged in a one-to-one correspondence; the connecting bolts are respectively connected at each corner position.

[0017] In an exemplary embodiment of this disclosure, the first support includes a connected support body and a reinforcing portion. The support body is annular, and the reinforcing portion has an intersection point and a first reinforcing portion, a second reinforcing portion, a third reinforcing portion, and a fourth reinforcing portion extending outward along the intersection point. The intersection point coincides with the center of the first support, and the ends of the first reinforcing portion, the second reinforcing portion, the third reinforcing portion, and the fourth reinforcing portion are respectively connected to the support body.

[0018] In one exemplary embodiment of this disclosure, the number of connecting parts is 1 to 8.

[0019] In one exemplary embodiment of this disclosure, when the number of connecting parts is four, each connecting part is respectively disposed on the first reinforcing part, the second reinforcing part, the third reinforcing part, and the fourth reinforcing part.

[0020] In one exemplary embodiment of this disclosure, the connecting part is a slot, and the connecting part engages with the flange.

[0021] In one exemplary embodiment of this disclosure, the measuring instrument includes a second connecting rod, one end of which is fixedly connected to the main body of the measuring instrument, the other end of which has an external thread, the connecting hole has an internal thread, and the second connecting rod is screwed into the connecting hole.

[0022] In one exemplary embodiment of this disclosure, the measuring instrument is a GPS measuring instrument.

[0023] The offshore photovoltaic (PV) pile foundation installation re-measurement fixture disclosed herein has the following advantages: First, the fixture can measure the verticality of the connected pile foundations using a measuring instrument. Measuring the verticality of the pile foundations ensures the accuracy of the installation and prevents shortened service life due to verticality deviations. Second, the fixture can detect the accuracy of the pile foundation installation position, ensuring the accuracy of the positional relationship between multiple pile foundations. This provides an accurate support foundation for the subsequent installation of PV modules, ensuring the rationality of the offshore PV layout. Third, by setting up a first support, a first connecting rod, a connecting component, a second support, and a measuring instrument with coincident centerlines, and defining the connection relationships between these components, the fixture effectively reduces the cumulative error between its internal components. This minimizes the adverse effects of the fixture's own errors on the pile foundation measurement parameters, improving the accuracy and reliability of the fixture's measurements.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1 This is a side view of a marine photovoltaic pile foundation installation retesting tool in conjunction with a pile foundation, as shown in an exemplary embodiment of this disclosure.

[0027] Figure 2 This is a three-dimensional structural diagram of a marine photovoltaic pile foundation installation and retesting tool according to an exemplary embodiment of the present disclosure.

[0028] Figure 3 This is a schematic diagram of the structure of a marine photovoltaic pile foundation installation retesting tool and flange assembly in an exemplary embodiment of this disclosure.

[0029] Figure 4 This is a top view of a marine photovoltaic pile foundation installation retesting tool according to an exemplary embodiment of this disclosure.

[0030] The reference numerals in the attached figures are explained as follows:

[0031] 100. Pile foundation; 200. Flange; 10. First support; 11. Support body; 101. Intersection; 12. Reinforcing part; 121. First reinforcing part; 122. Second reinforcing part; 123. Third reinforcing part; 124. Fourth reinforcing part; 13. Connecting part; 20. First connecting rod; 201. First end; 202. Second end; 30. Connecting assembly; 31. First connecting plate; 32. Second connecting plate; 33. Connecting bolt; 34. Preset gap; 40. Second support; 41. Connecting hole; 50. Measuring instrument; 51. Main body of measuring instrument; 52. Second connecting rod. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0033] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0034] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0035] In related technologies, offshore photovoltaic systems consist of components such as pile foundations, superstructure, photovoltaic panels, and transformer substations. Among them, the pile foundations provide the structural foundation for the installation of photovoltaic panels. One end of the pile foundation is sunk into the sea and fixed to the seabed, while the other end extends above the sea surface to provide support for the superstructure and photovoltaic panels. A superstructure often requires multiple pile foundations for support, and the service life of one pile foundation often affects the service life of the entire pile foundation group.

[0036] Piles can be fixed to the seabed using methods such as piling. However, during piling, operational errors can occur, resulting in pile elevation or verticality that does not meet the installation requirements of offshore photovoltaic systems. Furthermore, due to the positional relationships between multiple piles—for example, a necessary elevation difference must be maintained between piles to accommodate photovoltaic installation, or the pile tops must be horizontally parallel to meet the installation requirements of transformer substations—the installation location and verticality of the piles significantly impact the overall layout and lifespan of offshore photovoltaic systems.

[0037] Based on this, the present disclosure provides a tooling for re-testing the installation of offshore photovoltaic pile foundations, such as... Figure 1 As shown, combined with Figures 2 to 4 The tooling includes: a first support 10, a first connecting rod 20, a connecting assembly 30, a second support 40, and a measuring instrument 50.

[0038] The first support 10 has a centrally symmetrical structure, and a connecting part 13 is provided on one side of the first support 10. The first support 10 is detachably connected to the flange 200 through the connecting part 13. The first end 201 of the first connecting rod is connected to the center position of the first support 10, and the first connecting rod 20 extends from the first end 201 in a direction away from the flange 200. One end of the connecting assembly 30 is connected to the second end 202 of the first connecting rod, and the other end of the connecting assembly 30 has a hollow structure. The second support 40 is fitted into the hollow structure and has a connecting hole 41. The measuring instrument 50 is connected to the second support 40 through the connecting hole 41. The center lines of the first support 10, the first connecting rod 20, the connecting assembly 30, the second support 40, and the measuring instrument 50 coincide.

[0039] The offshore photovoltaic (PV) pile foundation installation re-measurement fixture disclosed herein has the following advantages: First, the fixture can measure the verticality of the connected pile foundations 100 using a measuring instrument 50. Measuring the verticality of the pile foundations 100 ensures the accuracy of their installation, preventing a shortened service life due to deviations in verticality. Second, the fixture can detect the accuracy of the installation position of the pile foundations 100, ensuring the accuracy of the positional relationship between multiple pile foundations 100. This provides an accurate support foundation for the subsequent installation of PV modules, ensuring the rationality of the offshore PV layout. Third, by setting up a first support 10, a first connecting rod 20, a connecting component 30, a second support 40, and a measuring instrument 50 with coincident centerlines, and defining the connection relationships between these components, the fixture effectively reduces the cumulative error between its internal components, minimizing the adverse effects of fixture errors on the measured parameters of the pile foundations 100, and improving the accuracy and reliability of the fixture's measurements.

[0040] In this disclosure, the tooling is connected to the top of the pile foundation 100. Specifically, a flange 200 is installed on the top of the pile foundation 100, through which the pile foundation 100 can be welded to the superstructure. Therefore, the stability and reliability of the pile foundation 100 structure directly determine the reliability and accuracy of the subsequent structural installation. It should be noted that the tooling provided in this disclosure can measure one pile foundation 100 at a time. After use, it can be disassembled and used to measure other pile foundations 100. When measuring the position of each pile foundation 100, latitude and longitude can be used for positioning, or the distance between the pile foundations 100 can be used for positioning.

[0041] It should be noted that the pile foundation 100 shown in the accompanying drawings can be a pipe pile structure with the same diameter at the bottom and top, or a pipe pile structure with a smaller diameter at the top than at the bottom. The dimensions, shape, and length-to-diameter ratio of the pile foundation 100 structure in the accompanying drawings are illustrative and do not represent the actual dimensions and proportions. The specific structure of the pile foundation 100 needs to be selected and adapted according to the actual design and application.

[0042] The following will describe in detail the various parts of the offshore photovoltaic pile foundation installation and retesting fixture provided in the embodiments of this disclosure, with reference to the accompanying drawings:

[0043] In the embodiments provided in this disclosure, such as Figure 1 As shown, combined with Figure 2 , Figure 3 and Figure 4 The tooling includes a first support 10, which has a centrally symmetrical structure. A connecting part 13 is provided on one side of the first support 10, and the first support 10 is detachably connected to the flange 200 through the connecting part 13.

[0044] The first support 10 includes a connected support body 11 and a reinforcing part 12. The support body 11 has a ring structure; for example, the support body 11 can be a circular ring, a triangular ring, or a square ring. Furthermore, in order to improve the matching degree between the support body 11 and the flange 200, the support body 11 can be a circular ring structure.

[0045] A reinforcing part 12 is provided inside the support body 11. The reinforcing part 12 has an intersection 101 and a first reinforcing part 121, a second reinforcing part 122, a third reinforcing part 123 and a fourth reinforcing part 124 extending outward along the intersection 101. The intersection 101 coincides with the center of the first support 10. The ends of the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123 and the fourth reinforcing part 124 are respectively connected to the support body 11.

[0046] The reinforcing part 12 and the support body 11 can be connected by welding, riveting, bonding or other connection methods, or the reinforcing part 12 and the support body 11 can be integrally formed. The first reinforcing part 121 and the third reinforcing part 123 within the reinforcing part 12 can be integrally formed rod-shaped structures, the second reinforcing part 122 and the fourth reinforcing part 124 can be integrally formed rod-shaped structures, or the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123 and the fourth reinforcing part 124 can be formed separately and then connected to form an intersection point 101.

[0047] A connecting part 13 is provided on the side of the first support 10 facing the flange 200, and the first support 10 is connected to the flange 200 through the connecting part 13. The number of connecting parts 13 can be 1 to 8, for example, 1, 2, 3, 4, 5, 6, 7 or 8. Depending on the number of connecting parts 13, the connecting parts 13 can be respectively provided on the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123 or the fourth reinforcing part 124.

[0048] For example, when there is one connecting part 13, the connecting part 13 can be disposed on one of the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123, or the fourth reinforcing part 124, and the first support 10 and the flange 200 are connected by one connecting part 13; when there are four connecting parts 13, such as Figure 2 As shown, combined with Figure 4A connecting part 13 can be provided on each of the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123, and the fourth reinforcing part 124, and the first support 10 and the flange 200 can be connected through the four connecting parts 13. When the number of connecting parts 13 is 8, two connecting parts 13 can be provided on each of the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123, and the fourth reinforcing part 124 to improve the connection reliability between the first support 10 and the flange 200. Furthermore, in order to ensure the connection reliability between the first support 10 and the flange 200 and reduce the redundancy of the structure, the number of connecting parts 13 can be 4.

[0049] like Figure 2 As shown, the connecting part 13 can be a slot structure. For example, a slot can be formed on the side of the rod-shaped reinforcing part 12 facing the flange 200 to form the connecting part 13. The slot can be a groove structure, and it can be engaged with the edge of the flange 200 or the flange 200 hole on the flange 200 plate. When the flange 200 is connected to the first support 10, the flange 200 can be engaged into the slot through the elastic deformation of the first support 10. When the flange 200 and the first support 10 are disassembled, the first support 10 can be elastically deformed to detach from the flange 200, so as to ensure the detachable connection between the flange 200 and the first support 10, which facilitates the disassembly of the tooling on the pile foundation 100 and improves the ease of use of the tooling.

[0050] Taking the support body 11 as a ring structure as an example, the intersection 101 is set at the center of the ring. A first reinforcing part 121, a second reinforcing part 122, a third reinforcing part 123 and a fourth reinforcing part 124 are connected between the intersection 101 and the inner surface of the ring. The first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123 and the fourth reinforcing part 124 are evenly distributed inside the ring to ensure the stability of the first support 10 and reduce the measurement error caused by the first support 10, thereby improving the measurement accuracy of the tooling itself.

[0051] Taking the support body 11 as a square ring as an example, the first reinforcing part 121, the second reinforcing part 122, the third reinforcing part 123 and the fourth reinforcing part 124 can be connected to the four corners of the square ring respectively to ensure the stability of the first support 10.

[0052] In the embodiments provided in this disclosure, such as Figure 1 As shown, the tooling includes a first connecting rod 20, which includes a first end 201 and a second end 202. The first end 201 of the first connecting rod is connected to the center of the first support 10, and the first connecting rod 20 extends from the first end 201 in a direction away from the flange 200.

[0053] The first link 20 can be made of metal, such as steel, iron, copper, aluminum, or alloy. The first link 20 can be a solid structure or a hollow structure. If a hollow structure is used, its wall thickness needs to be set according to the support strength of the first link 20.

[0054] In some embodiments, the first end 201 of the first connecting rod can be connected to the intersection 101 within the first support 10. The first end 201 can be connected to the intersection 101 by one of various methods such as insertion, riveting, screwing, welding, or bonding. Specifically, to ensure the reliability of the connection between the first connecting rod 20 and the first support 10, a through hole can be opened at the intersection 101, and the first connecting rod 20 is inserted into the through hole through an interference fit to achieve the connection between the two.

[0055] The length of the first connecting rod 20 can be selected according to the measurement requirements of the measuring instrument 50. Specifically, the first connecting rod 20 needs to ensure that the distance between the measuring instrument 50 and the top of the pile foundation 100 is within the measurement range to avoid measurement errors caused by distance. Furthermore, the length of the first connecting rod 20 also needs to ensure its supporting strength to prevent deformation during repeated or prolonged use, which could affect the measurement accuracy of the tooling. In some embodiments, the length of the first connecting rod 20 can be from 0.1m to 10m.

[0056] In the embodiments provided in this disclosure, such as Figure 2 As shown, the tooling includes a connecting component 30. One end of the connecting component 30 is connected to the second end 202 of the first connecting rod, and the other end of the connecting component 30 has a hollow structure and is connected to the measuring instrument 50.

[0057] The connecting component 30 includes a first connecting plate 31 and a second connecting plate 32. The first connecting plate 31 and the second connecting plate 32 are arranged parallel to each other, and the first connecting plate 31 and the second connecting plate 32 are connected by a plurality of connecting bolts 33. There is a preset gap 34 between the first connecting plate 31 and the second connecting plate 32.

[0058] The first connecting plate 31 can be located between the second connecting plate 32 and the first connecting rod 20. The second end 202 of the first connecting rod can be connected to the first connecting plate 31. For example, the connection between the first connecting rod 20 and the first connecting plate 31 can be achieved by one of several methods, such as plug-in, riveting, screwing, welding, or bonding. Furthermore, to facilitate the disassembly of the first connecting rod 20 and the connecting assembly, detachable connection methods such as screwing and plugging can be used. Furthermore, the axis of the first connecting rod 20 coincides with the center line of the first connecting plate 31 to reduce the measurement error of the tooling caused by their connection.

[0059] The second connecting plate 32 is connected to the first connecting plate 31 by connecting bolts 33, meaning the first connecting plate 31 and the second connecting plate 32 are detachably connected. To ensure the symmetry of the connecting assembly 30 and improve the stability and reliability of the entire tooling, the first connecting plate 31 and the second connecting plate 32 can have the same shape. For example, both can adopt triangular, circular, square, or rectangular shapes. Furthermore, to ensure the overall stability of the tooling, both the first connecting plate 31 and the second connecting plate 32 can adopt a triangular shape.

[0060] In an exemplary embodiment, both the first connecting plate 31 and the second connecting plate 32 adopt an equilateral triangular shape. The corners of the first connecting plate 31 and the second connecting plate 32 are arranged in a one-to-one correspondence, and the sides of the first connecting plate 31 are arranged in a corresponding manner to the sides of the second connecting plate 32. A first connecting hole 41 is provided at each corner of the first connecting plate 31, and a second connecting hole 41 is provided at each corner of the second connecting plate 32. Both the first connecting hole 41 and the second connecting hole 41 have internal threads, and the first connecting hole 41 and the second connecting hole 41 are connected by bolts.

[0061] The areas of the first connecting plate 31 and the second connecting plate 32 can be the same or different. Taking both as equilateral triangles as an example, if their areas are different, their projections on the sea surface are similar equilateral triangles, and the centers of the projected equilateral triangles coincide; if their areas are the same, their projections on the sea surface completely coincide. In an exemplary embodiment, to improve the stability of the tooling, if the areas of the first connecting plate 31 and the second connecting plate 32 are different, the area of ​​the second connecting plate 32 can be smaller than the area of ​​the first connecting plate 31.

[0062] The second connecting plate 32 has a hollow structure, which can be set at the center of the second connecting plate 32, and the size of the hollow structure matches the size of the second support 40, that is, the second support 40 can be fitted into the hollow structure to ensure a reliable connection between the second support 40 and the connecting component 30.

[0063] A preset gap 34 exists between the first connecting plate 31 and the second connecting plate 32. The size of the preset gap 34 is greater than or equal to a first dimension, which is the dimension of the second support 40 within the hollow structure. The connecting assembly 30 may also include multiple nuts, each nut corresponding to a connecting bolt 33. The nuts are positioned between the first connecting plate 31 and the second connecting plate 32 to ensure the preset gap 34 exists between them. In this disclosure, the size of the preset gap 34 can be adjusted according to the number of nuts. If a larger preset gap 34 is required, multiple nuts can be stacked between the first connecting plate 31 and the second connecting plate 32. It should be noted that, to ensure the balance and stability of the connecting assembly 30, the number of nuts stacked at various positions on the first connecting plate 31 and the second connecting plate 32 can be the same, and the nut type can be the same.

[0064] In some embodiments, the size of the preset gap 34 is greater than or equal to a first size, where the first size is the size of the second support 40 located within the hollow structure and extending into the preset gap 34. That is, the preset gap 34 may need to accommodate part of the second support 40 to ensure the reliability of the connection between the second support 40 and the second connecting plate 32.

[0065] In the embodiments provided in this disclosure, such as Figure 3 As shown, combined with Figure 1 , Figure 2 and Figure 4 The tooling includes a second support 40 and a measuring instrument 50. The second support 40 is fitted inside the hollow structure and has a connecting hole 41. The measuring instrument 50 is connected to the second support 40 through the connecting hole 41.

[0066] The second support 40 is fixed to the connecting component 30 through a hollow structure. The second support 40 can be circular, square, triangular, or rectangular, but to improve the ease of connection between the second support 40 and the connecting component 30, it can be circular, and the hollow structure can be a circular through-hole structure. In this disclosure, the projection of the second support 40 on the sea level is located inside the projection of the second connecting plate 32 on the sea level, so that the connecting component 30 can provide good support for the second support 40.

[0067] To facilitate the connection between the measuring instrument 50 and the second support 40, a connection hole 41 is provided on the second support 40, through which the measuring instrument 50 can be connected to the second support 40. In an exemplary embodiment, the measuring instrument 50 may include a second connecting rod 52, one end of which is fixedly connected to the main body 51 of the measuring instrument, and the other end of the second connecting rod 52 has an external thread, while the connection hole 41 has an internal thread, and the second connecting rod 52 is screwed into the connection hole 41. In an exemplary embodiment, the outer surface of one end of the second connecting rod 52 may have a buckle, and a groove is provided inside the connection hole 41, through which the connection between the measuring instrument 50 and the second support 40 is achieved.

[0068] The connecting hole 41 can be a through hole or a semi-through hole. The connecting hole 41 only needs to ensure the connection between the measuring instrument 50 and the second support 40.

[0069] The measuring instrument 50 can be a GPS measuring instrument, which acquires various parameters of the pile foundation 100, such as detecting the verticality of the pile foundation 100, locating the position of the pile foundation 100, and measuring the elevation of the pile foundation 100. Of course, the measuring instrument 50 can also use other measuring instruments, such as laser collimators or total stations, but in order to achieve comprehensive measurement of the parameters of the pile foundation 100 and to use a single instrument to measure multiple parameters of the pile foundation 100, the measuring instrument 50 can be a GPS measuring instrument.

[0070] It should be noted that the tooling provided in the above embodiments of this disclosure has detachable internal components. When one or more components are deformed or damaged, the components can be modified to ensure the reusability of the tooling.

[0071] In the embodiments provided in this disclosure, the center lines of the first support 10, the first connecting rod 20, the connecting assembly 30, the second support 40 and the measuring instrument 50 within the tooling coincide. That is, the connection between the various components of the tooling can ensure the stability of the tooling, eliminate subsequent measurement errors caused by the connection relationship within the tooling, and improve the accuracy of the tooling in measuring the parameters of the pile foundation 100.

[0072] The elevation of pile foundation 100 refers to the height of the portion of pile foundation 100 above sea level after it is fixed to the seabed. The elevation of pile foundation 100 can be selected based on the different superstructures to which it is connected. For example, when pile foundation 100 is used to support photovoltaic panels, the photovoltaic panels need to have a predetermined angle with the sea level to increase their power output. In this case, the pile foundations 100 supporting the photovoltaic panels need to have different elevations to ensure the predetermined angle. When pile foundation 100 is used to support transformer substations, multiple pile foundations 100 can form a horizontal support structure, meaning that the elevations of multiple pile foundations 100 can be the same. Furthermore, since there is a positional relationship between the transformer substation and the photovoltaic panels, the pile foundations 100, as supporting structures, also need to have a positional relationship. In this disclosure, the position of each pile foundation 100 and the positional relationships between each pile foundation 100 need to be determined according to the layout and construction of the offshore photovoltaic system. Furthermore, the verticality of the pile foundation 100 indicates the accuracy of its installation. If the verticality of one or more pile foundations 100 does not meet the standard, these pile foundations 100 are prone to deformation prematurely, leading to a shortened service life. Therefore, the verticality of the pile foundation 100 is a representation of its service life.

[0073] The specific method of using the tooling provided in this disclosure is as follows: The pile foundation 100 is installed at a predetermined position in the sea area through processes such as piling; the first support 10, the first connecting rod 20, the second support 40, and the measuring instrument 50 within the tooling are connected along the centerline; the assembled tooling is self-inspected to complete the accuracy test of its internal components; the assembled tooling is connected to the flange 200 on the top of the pile, and the verticality, latitude and longitude of the pile foundation 100, and the elevation of the pile foundation 100 are detected by the GPS measuring instrument within the tooling; the measured parameters are compared with the preset parameters to determine whether the installation of the pile foundation 100 meets the expected standards. If it does, the next pile foundation 100 is tested; if it does not, the position of the pile foundation 100 is adjusted, and the test is repeated. The expected standards can be obtained or determined through simulation and modeling software.

[0074] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A tooling for re-testing the installation of offshore photovoltaic pile foundations, wherein a flange is installed at the top of the pile foundation, characterized in that, include: The first support has a centrally symmetrical structure and a connecting part is provided on one side of the first support. The first support is detachably connected to the flange through the connecting part. A first link, the first end of which is connected to the center of the first support, and the first link extends from the first end in a direction away from the flange; A connecting component, one end of which is connected to the second end of the first connecting rod, and the other end of which has a hollow structure; The second support is fitted inside the hollow structure and has a connecting hole; A measuring instrument, wherein the measuring instrument is connected to the second support through the connecting hole; The center lines of the first support, the first connecting rod, the connecting assembly, the second support, and the measuring instrument coincide.

2. The installation and retesting fixture for offshore photovoltaic pile foundations according to claim 1, characterized in that, The connecting assembly includes a first connecting plate and a second connecting plate, which are arranged parallel to each other and connected to each other by a plurality of connecting bolts, with a preset gap between the first connecting plate and the second connecting plate.

3. The installation and re-testing fixture for offshore photovoltaic pile foundations according to claim 2, characterized in that, The size of the preset gap is greater than or equal to the first size, where the first size is the size of the second support located within the hollow structure and extending into the preset gap.

4. The installation and re-testing fixture for offshore photovoltaic pile foundations according to claim 2, characterized in that, The first connecting plate and the second connecting plate have the same shape and both have a triangular shape, and the corners of the first connecting plate and the second connecting plate are arranged in a one-to-one correspondence; the connecting bolts are respectively connected at the corner positions.

5. The installation and re-testing fixture for offshore photovoltaic pile foundations according to claim 1, characterized in that, The first support includes a connected support body and a reinforcing part. The support body is annular. The reinforcing part has an intersection point and four reinforcing parts extending outward from the intersection point. The intersection point coincides with the center of the first support. The ends of the first, second, third and fourth reinforcing parts are respectively connected to the support body.

6. The installation and re-testing fixture for offshore photovoltaic pile foundations according to claim 5, characterized in that, The number of connecting parts is 1 to 8.

7. The installation and re-testing fixture for offshore photovoltaic pile foundations according to claim 6, characterized in that, When the number of connecting parts is four, each connecting part is respectively disposed on the first reinforcing part, the second reinforcing part, the third reinforcing part and the fourth reinforcing part.

8. The installation and retesting fixture for offshore photovoltaic pile foundations according to claim 1, characterized in that, The connecting part is a slot, and the connecting part is engaged with the flange.

9. The installation and retesting fixture for offshore photovoltaic pile foundations according to claim 1, characterized in that, The measuring instrument includes a second connecting rod, one end of which is fixedly connected to the main body of the measuring instrument, and the other end of the second connecting rod has an external thread. The connecting hole has an internal thread, and the second connecting rod is screwed into the connecting hole.

10. The installation and re-testing fixture for offshore photovoltaic pile foundations according to any one of claims 1-9, characterized in that, The measuring instrument is a GPS measuring instrument.

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