Suction type bolt-sphere grid structure
By using a suction-type bolted ball grid structure, which is manufactured in a factory and connected by suction piles, the problems of unstable welding node quality and high construction costs of traditional pile foundations in offshore photovoltaic projects have been solved, enabling the construction of offshore photovoltaic power stations quickly, economically, and stably.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中交海峰风电发展股份有限公司
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-14
AI Technical Summary
In offshore photovoltaic projects, the quality of welded joints is unstable, construction costs are high, and the construction period is long. Traditional pile foundation construction is expensive and prone to misalignment problems, making it difficult to meet the requirements of economy and stability.
The structure adopts a suction-type bolted ball grid structure, with all components manufactured in the factory. It is connected by suction piles and bolted balls to form a standardized and industrialized support structure. The suction piles enable rapid construction, avoid welding joints, and adapt to insufficient bearing capacity caused by the thickness of the silt layer.
It shortens the construction cycle of offshore photovoltaic power stations, improves construction efficiency and quality control, meets green building requirements, solves welding joint problems, and adapts to the construction challenges of the marine environment.
Smart Images

Figure CN224124071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a suction-type bolt ball grid structure. Background Technology
[0002] With the introduction of the "3060 dual-carbon" target, the demand for new energy installed capacity has increased significantly, making the vigorous development of marine new energy a crucial strategic support for my country's energy structure transformation. Compared to onshore photovoltaic power generation, offshore photovoltaic power generation does not occupy scarce land resources, and under the same sunlight conditions, offshore photovoltaic power generation has higher solar energy utilization efficiency.
[0003] Currently, in offshore photovoltaic projects, large-span steel trusses are generally connected by welded joints. However, offshore photovoltaic projects have a large number of upper supports and a huge number of support members, resulting in a massive amount of welding and anti-corrosion repair work for the corresponding support assembly. At the same time, on-site welding is easily affected by weather conditions and the skill level of welders, resulting in inconsistent weld quality, inconsistent welding efficiency, and a large workload for weld inspection and rectification.
[0004] Meanwhile, the existing photovoltaic support structure uses steel pipe piles at the bottom. This method has a simple connection structure and is economical when used for onshore photovoltaics. However, it has the following problems when used at sea: (1) In sea areas with poor surface soil bearing capacity and shallow bedrock, conventional pile foundations need to be embedded in rock, which is costly and time-consuming; (2) The number of pile foundations required for the commonly used fixed photovoltaic support structure on land is large, while the construction cost of offshore pile foundations is far greater than that on land. The traditional pile foundation type cannot meet the economic needs of marine projects; (3) The wave currents in the marine environment are large, which can easily cause pile foundation displacement problems. At the same time, the soil in the tidal flats and nearshore areas is relatively soft, which can easily cause large vertical displacement deviations during the pile foundation construction process, resulting in the inability to install normally afterward.
[0005] Therefore, a suction-type bolted ball grid structure is proposed to address the above problems. Utility Model Content
[0006] The purpose of this utility model is to overcome the existing defects and provide a suction bolt ball grid structure. All components are manufactured in the factory, which allows for fast processing and assembly and shortens the construction period.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a suction-type bolted ball net frame structure, comprising a bolted ball net frame, a suction component, and a connecting frame component;
[0008] The lower end of the connecting frame assembly is connected to the suction assembly, and the upper end is connected to the bolt ball net frame;
[0009] The bolted ball net frame includes multiple upper chords, multiple lower chords, multiple web members, and multiple bolted balls. The multiple upper chords are connected to form a square net through the multiple bolted balls, and the multiple lower chords are connected to form a square net through the multiple bolted balls. The multiple web members are located between two square nets and are connected to the bolted balls at both ends.
[0010] Preferably, the suction assembly includes four suction posts, all of which are connected to the lower end of the connecting frame assembly.
[0011] Preferably, the connecting frame assembly includes four vertical main pipes, each of the four vertical main pipes is connected to a suction pile at its lower end, and the four vertical main pipes are connected to each other by connecting steel pipe groups.
[0012] Preferably, the lower end face of the bolted ball net frame is connected to four connecting rods, the lower ends of the four connecting rods are insertion sections, and a partition is connected above the insertion sections; the insertion sections at the lower ends of the four connecting rods are each inserted into the four vertical main guide tubes.
[0013] Preferably, the four vertical main pipes are welded to the connecting steel pipe group.
[0014] Preferably, the partition is welded to the upper end of the vertical main tube; multiple reinforcing ribs are connected between the upper surface of the partition and the connecting rod.
[0015] Preferably, the suction pile is an inverted cylindrical structure with a closed upper end and an open lower end.
[0016] Preferably, the suction pile is welded to the vertical main pipe.
[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: This suction-type bolted ball space frame structure is factory-made, allowing for rapid processing and assembly, shortening the construction cycle, and enabling offshore photovoltaic power stations to connect to the grid and generate electricity ahead of schedule; all components are standardized and industrially manufactured, resulting in better precision and quality control; it maximizes the fulfillment of green building design and construction requirements for energy conservation, land conservation, water conservation, material conservation, and environmental protection, thus effectively solving the problems associated with welded joints. Furthermore, the suction-type foundation construction using suction piles is fast and convenient, and can adapt to the problem of insufficient bearing capacity caused by thick silt layers. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1This is an isometric view of the suction-type bolt ball grid structure of this utility model;
[0020] Figure 2 This is a front view of the suction-type bolt ball grid structure of this utility model;
[0021] Figure 3 This is a side view of the suction-type bolt ball grid structure of this utility model;
[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0023] In the diagram: 1. Bolted ball grid; 2. Upper chord; 3. Lower chord; 4. Web member; 5. Bolted ball; 6. Suction pile; 7. Vertical main pipe; 8. Connecting steel pipe assembly; 9. Connecting rod; 10. Insertion section; 11. Partition plate; 12. Reinforcing rib plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4 A suction-type bolted ball net frame structure includes a bolted ball net frame 1, a suction component, and a connecting frame component; the lower end of the connecting frame component is connected to the suction component, and the upper end is connected to the bolted ball net frame 1; the bolted ball net frame 1 is composed of multiple upper chords 2, multiple lower chords 3, multiple web members 4, and multiple bolted balls 5 connected together.
[0026] Specifically, the advantages of bolted ball space frame 1 are that all components are manufactured in factories, resulting in fast processing and assembly speeds, shorter construction cycles, and the ability for offshore photovoltaic power stations to be connected to the grid and generate electricity ahead of schedule; all components are manufactured in a standardized and industrialized manner, resulting in better precision and quality control; and it maximizes the fulfillment of green building design and construction requirements for energy conservation, land conservation, water conservation, material conservation, and environmental protection. Therefore, the use of bolted ball space frame can effectively solve the problems existing in welded joints.
[0027] Specifically, the bolted ball grid frame 1 includes multiple upper chords 2, multiple lower chords 3, multiple web members 4, and multiple bolted balls 5. The multiple upper chords 2 are connected to form a square grid through multiple bolted balls 5, and the multiple lower chords 3 are connected to form a square grid through multiple bolted balls 5. The multiple web members 4 are located between two square grids and are connected to bolted balls 5 at both ends. All members are connected through bolted balls 5. The upper end of the insertion section 10 is welded with a partition plate 11, and the lower end is welded with a guide structure. The diameter of the insertion section 10 is slightly smaller than the inner diameter of the vertical main pipe 7. The suction component consists of the vertical main pipe 7, the connecting steel pipe group 8, and the suction piles 6. The upper part of the suction piles 6 is connected to the vertical main pipe 7 by welding. The vertical main pipes 7 are connected to each other by welding the connecting steel pipe group 8 to form a whole. After the insertion section 10 of the bolted ball grid frame 1 is inserted into the vertical main pipe 7, the partition plate 11 of the insertion section is connected to the vertical main pipe 7 by on-site welding. After welding, the bolted ball grid frame and the suction foundation become a whole.
[0028] Specifically, the suction assembly includes four suction piles 6, all connected to the lower end of the connecting frame assembly. The connecting frame assembly includes four vertical main pipes 7, each with a suction pile 6 connected to its lower end. The four vertical main pipes 7 are connected to each other via connecting steel pipe assemblies 8. The lower end of the bolted ball grid frame 1 is connected to four connecting rods 9, the lower end of which is an insertion section 10, with a partition plate 11 connected above the insertion section 10. The insertion sections 10 at the lower ends of the four connecting rods 9 are each inserted into one of the four vertical main pipes 7. The four vertical main pipes 7 are welded to the connecting steel pipe assemblies 8. The partition plate 11 is welded to the upper end of the vertical main pipe 7; multiple reinforcing ribs 12 are connected between the upper end of the partition plate 11 and the connecting rods 9. The suction pile 6 is an inverted cylindrical structure, closed at the upper end and open at the lower end. The suction pile 6 is welded to the vertical main pipe 7.
[0029] Specifically, the suction assembly is connected to the seabed; the suction assembly includes four suction piles 6, which are connected to the seabed. Each suction pile is connected to a suction pump, and one suction pump can simultaneously pump multiple suction piles.
[0030] Specifically, the upper bolted ball grid 1 is assembled in a streamlined manner at the dock yard. After the main structure of the bolted ball grid 1 is assembled, the purlins and purlin supports are installed. The purlins and purlin supports are connected by bolts, and the purlin supports are connected and fixed to the upper chord bolt balls of the steel grid using bolts. The photovoltaic modules are fixed to the purlins using bolts and pressure blocks. Finally, electrical wiring and equipment debugging are carried out. The suction modules are prefabricated and welded in the onshore factory according to the design dimensions, and then transported as a whole to the offshore construction site for overall negative pressure sinking. During the sinking process, the overall foundation can be leveled by adjusting the power of the suction pump. After the sinking is completed, the bolted ball grid 1 prefabricated and assembled onshore is transported to the site. The insertion section is inserted into the vertical main pipe through the guide structure at the bottom of the insertion section. Finally, the steel pipe piles are welded to the partition plates and reinforcing plates on site to complete the installation of the entire support structure.
[0031] The assembled welded components were transported to the offshore construction site. The entire assembly was then hoisted to drive the four suction piles through. During the driving process, the power of the suction pumps was adjusted to level the foundation.
[0032] This suction-type bolted ball grid structure uses suction piles for quick and convenient construction, and can adapt to the problem of insufficient bearing capacity caused by thick silt layers. The pile foundations are connected by steel pipe groups to form a whole before installation, avoiding the problem of misalignment between pile foundations during construction, which would prevent smooth installation. At the same time, the bolted ball grid 1 is a whole, and the photovoltaic panels can be pre-installed on the bolted ball grid 1 on land before being hoisted together, reducing the number of installation procedures at sea.
[0033] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A suction boltable space frame structure, characterized in that, Includes bolted ball grid frame (1), suction assembly and connecting frame assembly; The lower end of the connecting frame assembly is connected to the suction assembly, and the upper end is connected to the bolt ball net frame (1); The bolt ball net frame (1) includes multiple upper chords (2), multiple lower chords (3), multiple web members (4), and multiple bolt balls (5). The multiple upper chords (2) are connected to form a square net through the multiple bolt balls (5). The multiple lower chords (3) are connected to form a square net through the multiple bolt balls (5). The multiple web members (4) are located between two square nets and are connected to the bolt balls (5) at both ends.
2. The suction boltable sphere grid structure according to claim 1, wherein, The suction assembly includes four suction posts (6), all of which are connected to the lower end of the connecting frame assembly.
3. The suction boltable sphere grid structure according to claim 2, wherein, The connecting frame assembly includes four vertical main pipes (7), each of the four vertical main pipes (7) is connected to a suction pile (6) at its lower end, and the four vertical main pipes (7) are connected to each other by a connecting steel pipe assembly (8).
4. The suction boltable sphere grid structure according to claim 3, wherein, The lower end face of the bolt ball net frame (1) is connected to four connecting rods (9), the lower end of the four connecting rods (9) is an insertion section (10), and a partition plate (11) is connected above the insertion section (10); the insertion sections (10) at the lower end of the four connecting rods (9) are each inserted into the four vertical main tubes (7).
5. The suction boltable sphere grid structure according to claim 3, wherein, The four vertical main pipes (7) are welded together with the connecting steel pipe group (8).
6. The suction boltable sphere grid structure according to claim 4, wherein, The partition (11) is welded to the upper end of the vertical main pipe (7); multiple reinforcing ribs (12) are connected between the upper end face of the partition (11) and the connecting rod (9).
7. The suction boltable sphere grid structure according to claim 3, wherein, The suction pile (6) is an inverted cylindrical structure with a closed upper end and an open lower end.
8. The suction boltable sphere grid structure according to claim 3, wherein, The suction pile (6) is welded to the vertical main pipe (7).