Offshore photovoltaic assembly type pin shaft connection node

Abstract

The utility model discloses an offshore photovoltaic assembly type pin shaft connection node, and belongs to the technical field of offshore photovoltaic power generation. Comprising a first steel ball arranged at the top end of a steel pipe pile, a plurality of inclined columns connected with the first steel ball through a plurality of first pin shaft connecting structures, a second steel ball arranged at the other ends of the inclined columns and a plurality of steel platform rod pieces arranged on the second steel ball. And the second steel ball is connected with the inclined column through a second pin shaft connecting structure. The pile head of each steel pipe pile is provided with 3-4 inclined columns, and stable and efficient connection between each inclined column and a pile head steel ball and between each inclined column and an upper steel platform ball node is achieved through pin shaft connecting nodes.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaic power generation, in particular to an offshore photovoltaic assembled pin connection node, which is used for connecting an offshore photovoltaic support and a steel pipe pile. Background Art

[0002] With the urgent global demand for renewable energy and the gradual implementation of policies for co-location of offshore wind and solar power, the photovoltaic industry is rapidly expanding from land-based areas to shallow and even deep-sea areas. In the construction of offshore photovoltaic power stations, pile foundations account for nearly 20-30% of the cost. Therefore, large-platform steel structures are currently recommended for offshore photovoltaic arrays to reduce the number of pile foundations. Typically, each platform is equipped with 4-6 piles. Each pile foundation is subject to heavy loads from the superstructure and complex stress conditions. Therefore, the connection between the upper steel platform and the steel pipe piles is a critical link. If traditional welding is used, if welding is required at a processing plant, due to the different and large height differences between the front and rear legs, the units can only be transported in single pieces, which is extremely costly. If assembly and welding are carried out at the dock, the construction is often difficult, the construction period is long, and anti-corrosion treatment is difficult. Furthermore, the construction environment around the dock is demanding. Therefore, a new node design that can quickly connect and improve node stability is needed.

[0003] While traditional connection methods, such as welding, can achieve a certain degree of success in connecting photovoltaic racks to steel pipe piles, they have significant drawbacks. First, welding operations at sea require hot work permits, which increases the complexity and time required for construction. Second, transporting and installing welding equipment is a daunting task, particularly in the challenging offshore environment. Furthermore, the heat generated during welding can cause material deformation or residual stress, impacting the quality and service life of the connection. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an offshore photovoltaic assembly pin connection node, in which each steel pipe pile is provided with 3-4 inclined columns at its head, and each inclined column and the pile head steel ball, and each inclined column and the upper steel platform ball node are stably and efficiently connected through the pin connection node.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An offshore photovoltaic assembled pin connection node includes a first steel ball arranged at the top of a steel pipe pile, a plurality of inclined columns connected to the first steel ball via a plurality of first pin connection structures, a second steel ball arranged at the other end of the inclined column, and a plurality of steel platform rods arranged on the second steel ball; the second steel ball is connected to the inclined column via a second pin connection structure.

[0007] A further improvement of the technical solution of the present utility model is that: a first node plate is provided at one end of the inclined column connected to the first pin connection structure; a second node plate is provided at the other end of the inclined column connected to the second pin connection structure.

[0008] A further improvement of the technical solution of the present invention is that the first pin shaft connection structure and the second pin shaft connection structure are consistent in structure.

[0009] A further improvement of the technical solution of the present utility model is that: the first pin shaft connection structure includes two parallel first ear plates, a first stiffening rib and a first pin shaft arranged on the outside of the first ear plates; a first pin hole for the first pin shaft to pass through is provided in the middle position of the first ear plate; and there is space between the two parallel first ear plates for the first node plate to be inserted.

[0010] A further improvement of the technical solution of the present utility model is that the first ear plate and the first stiffening rib are directly welded to the first steel ball according to the oblique column angle.

[0011] A further improvement of the technical solution of the present utility model is that: the second pin shaft connection structure includes two parallel second ear plates, a second stiffening rib and a second pin shaft arranged on the outside of the second ear plate; a second pin hole for the second pin shaft to pass through is provided in the middle position of the second ear plate; and there is space between the two parallel second ear plates for the second node plate to be inserted.

[0012] A further improvement of the technical solution of the present utility model is that the second ear plate and the second stiffening rib are directly welded to the second steel ball according to the angle of the inclined column and the installation position of the steel platform rod.

[0013] A further improvement of the technical solution of the utility model is that 3-4 inclined columns are connected to each steel pipe pile.

[0014] A further improvement of the technical solution of the present utility model is that a plurality of steel platform rods, a second steel ball, a second ear plate and a second stiffening rib on the large-span photovoltaic steel structure platform are welded and connected into an integral structure in a factory.

[0015] A further improvement of the technical solution of the present utility model is that the first steel ball on the side of the steel pipe pile is welded to the circumference of the steel pipe pile.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is:

[0017] 1. The utility model adopts a pin connection method and effectively connects the upper steel platform and the steel pipe piles through inclined columns and steel platform rods; this design not only simplifies the construction process and improves construction efficiency, but also avoids many problems caused by welding operations.

[0018] 2. The utility model adopts a pin connection method, which does not require complicated hot work approval procedures and welding equipment transportation, reducing construction difficulty and construction costs.

[0019] 3. The utility model adopts a pin connection method and uses isotropic steel to process the support. The appropriate steel grade, structural size and thickness can be selected through structural calculation, which improves the stability and reliability of the connection.

[0020] 4. The utility model adopts a pin connection method, which has the beneficial effects of convenient construction, stable connection and improved construction efficiency. Compared with the traditional welding connection method, the utility model has significant advantages and application prospects in the construction of offshore photovoltaic power stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0022] Figure 1 This is a schematic diagram of the connection between the large-span photovoltaic steel structure platform and the steel pipe piles in the embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of the connection between the large-span photovoltaic steel structure platform and the steel pipe piles shown in AA and BB in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection node structure between the inclined column and the steel pipe pile in the embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the connection node structure between the inclined column and the steel platform rod in the embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the connection between the oblique column and the second steel ball pin in the embodiment of the present utility model;

[0027] Among them, 1. Large-span photovoltaic steel structure platform; 2. Inclined column; 2-1. First node plate; 2-2. Second node plate; 3. Steel pipe pile; 4. First pin connection structure; 4-1. First ear plate; 4-2. First stiffening rib; 4-3. First pin; 5. First steel ball; 6. Second steel ball; 7. Steel platform rod; 8. Second pin connection structure; 8-1. Second ear plate; 8-2. Second stiffening rib; 8-3. Second pin. DETAILED DESCRIPTION

[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "several" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0032] like Figure 1-2 As shown, an offshore photovoltaic assembled pin connection node includes a first steel ball 5 arranged at the top of a steel pipe pile 3, a plurality of inclined columns 2 connected to the first steel ball 5 through a plurality of first pin connection structures 4, a second steel ball 6 arranged at the other end of the inclined column 2, and a plurality of steel platform rods 7 arranged on the second steel ball 6; the second steel ball 6 is connected to the inclined column 2 through a second pin connection structure 8.

[0033] Furthermore, a first gusset plate 2-1 is provided at one end of the inclined column 2 connected to the first pin connection structure 4, and a second gusset plate 2-2 is provided at the other end of the inclined column 2 connected to the second pin connection structure 8. Both the first gusset plate 2-1 and the second gusset plate 2-2 are welded to both ends of the inclined column 2. Both the first gusset plate 2-1 and the second gusset plate 2-2 are provided with through-holes for the first and second pins 4-3, 8-3 to pass through.

[0034] Furthermore, the first pin connection structure 4 and the second pin connection structure 8 have the same structure.

[0035] Furthermore, the first pin connection structure 4 includes two parallel first lugs 4-1, a first stiffening rib 4-2 disposed outside the first lugs 4-1, and a first pin 4-3. A first pin hole is provided in the middle of the first lugs 4-1 for the first pin 4-3 to pass through. A space is provided between the two parallel first lugs 4-1 for the first gusset plate 2-1 to be inserted. The size of the first gusset plate 2-1 matches that of the first lugs 4-1. Two first stiffening ribs 4-2 are provided in parallel in the middle of the outer side of each first lug 4-1. The provision of the first stiffening ribs 4-2 reinforces the strength of the first lugs 4-1.

[0036] Furthermore, the first ear plate 4 - 1 and the first stiffening rib 4 - 2 are directly welded to the first steel ball 5 at an angle of the oblique column 2 .

[0037] Furthermore, the second pin connection structure 8 includes two parallel second lugs 8-1, second stiffening ribs 8-2 disposed outside the second lugs 8-1, and a second pin 8-3. A second pin hole is provided in the middle of the second lugs 8-1 for the second pin 8-3 to pass through. A space is provided between the two parallel second lugs 8-1 for the second gusset plate 2-2 to be inserted. The size of the second gusset plate 2-2 matches that of the second lugs 8-1. Two second stiffening ribs 8-2 are provided in parallel in the middle of the outer side of each second lug 8-1. The provision of the second stiffening ribs 8-2 enhances the strength of the second lugs 8-1.

[0038] Furthermore, the second ear plate 8 - 1 and the second stiffening rib 8 - 2 are directly welded to the second steel ball 6 according to the angle of the inclined column 2 and the installation position of the steel platform rod 7 .

[0039] Furthermore, each steel pipe pile 3 is connected to 3-4 inclined columns 2.

[0040] Furthermore, a plurality of steel platform rods 7 , the second steel balls 6 , the second ear plates 8 - 1 and the second stiffening ribs 8 - 2 on the large-span photovoltaic steel structure platform 1 are welded and connected in the factory to form an integral structure.

[0041] Furthermore, the first steel ball 5 on the side of the steel pipe pile 3 is welded to the circumference of the steel pipe pile 3 .

[0042] Specifically, the large-span photovoltaic steel structure platform 1 adopts a steel truss structure, and the steel platform rods 7 are mainly composed of upper chords, lower chords, webs, horizontal braces, and horizontal ties. Each steel pipe pile 3 supports the large-span photovoltaic steel structure platform 1 through 3-4 inclined columns 2, and effectively transfers the upper load to the steel pipe pile 3.

[0043] Steel balls (first steel ball 5 and second steel ball 6) are set at both ends of the inclined column 2. The first ear plate 4-1 of the first pin connection structure 4 is directly welded to the first steel ball 5 according to the angle of the inclined column 2. The large-span photovoltaic steel structure platform 1 is directly welded to the steel platform rod 7 (directly welded to the second steel ball 6 according to the installation angle requirements), the second steel ball 6, the second ear plate 8-1 and the second stiffening rib 8-2 in the factory to form an integral structure (hereinafter referred to as the steel platform), and transported to the land wharf near the site; after the first steel ball 5, the steel platform and the inclined column 2 on the side of the steel pipe pile 3 are assembled at the land wharf, they are transported to the site as a whole and hoisted into place. Finally, the first steel ball 5 on the side of the steel pipe pile 3 is welded to the steel pipe pile 3 at the last circumference to ensure that the structural load is reliably transferred to the steel pipe pile 3.

[0044] In summary, the present invention adopts a connection method of a pin connection structure (a first pin connection structure 4 and a second pin connection structure 8), and tightly connects the upper steel platform and the steel pipe pile 3 together through multiple inclined columns 2. The pin connection structure mainly includes a pin and an ear plate. The selection of the ear plate should take into account its tensile and shear strength, and the selection of the pin should take into account its compressive, shear and bending strength to ensure the stability and long-term reliability of the connection.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An offshore photovoltaic assembly pin connection node, characterized by: The invention comprises a first steel ball (5) arranged at the top end of a steel pipe pile (3), a plurality of inclined columns (2) connected to the first steel ball (5) via a plurality of first pin connection structures (4), a second steel ball (6) arranged at the other end of the inclined column (2), and a plurality of steel platform rods (7) arranged on the second steel ball (6); the second steel ball (6) is connected to the inclined column (2) via a second pin connection structure (8).

2. The offshore photovoltaic assembly pin connection node according to claim 1, characterized in that: A first node plate (2-1) is provided at one end of the inclined column (2) connected to the first pin connection structure (4); and a second node plate (2-2) is provided at the other end of the inclined column (2) connected to the second pin connection structure (8).

3. The offshore photovoltaic assembly pin connection node according to claim 2, characterized in that: The first pin connection structure (4) and the second pin connection structure (8) have the same structure.

4. The offshore photovoltaic assembly pin connection node according to claim 3, characterized in that: The first pin connection structure (4) comprises two parallel first ear plates (4-1), a first stiffening rib (4-2) and a first pin (4-3) arranged outside the first ear plates (4-1); a first pin hole for the first pin (4-3) to pass through is provided in the middle of the first ear plates (4-1); and a space for the first node plate (2-1) to be inserted is provided between the two parallel first ear plates (4-1).

5. The offshore photovoltaic assembly pin connection node according to claim 4, characterized in that: The first ear plate (4-1) and the first stiffening rib (4-2) are directly welded to the first steel ball (5) at an angle of the oblique column (2).

6. The offshore photovoltaic assembly pin connection node according to claim 3, characterized in that: The second pin connection structure (8) comprises two second ear plates (8-1) arranged in parallel, a second stiffening rib (8-2) arranged outside the second ear plate (8-1), and a second pin (8-3); a second pin hole for the second pin (8-3) to pass through is arranged in the middle of the second ear plate (8-1); and a space for the second node plate (2-2) to be inserted is provided between the two second ear plates (8-1) arranged in parallel.

7. The offshore photovoltaic assembly pin connection node according to claim 6, characterized in that: The second ear plate (8-1) and the second stiffening rib (8-2) are directly welded to the second steel ball (6) according to the angle of the inclined column (2) and the installation position of the steel platform rod (7).

8. The offshore photovoltaic assembly pin connection node according to claim 1, characterized in that: Each steel pipe pile (3) is connected to 3-4 inclined columns (2).

9. The offshore photovoltaic assembly pin connection node according to claim 1, characterized in that: A plurality of steel platform rods (7), a second steel ball (6), a second ear plate (8-1) and a second stiffening rib (8-2) on a large-span photovoltaic steel structure platform (1) are welded and connected in a factory to form an integral structure.

10. The offshore photovoltaic assembled pin connection node according to claim 1, characterized in that: The first steel ball (5) on the side of the steel pipe pile (3) is welded to the circumference of the steel pipe pile (3).

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