Floating type offshore photovoltaic platform

Abstract

The invention discloses a floating type offshore photovoltaic platform. Comprising a bottom frame; the first floating cylinders are mounted on the bottom frame; the top mounting frame is arranged above the bottom frame, is provided with a flexible cable and is used for mounting a photovoltaic panel; the upper ends of the stand columns are connected with the corners of the top mounting frame respectively, and the lower ends of the stand columns are connected with the corners of the bottom frame respectively; the upper ends of the reinforcing rods are connected with non-corners of the top mounting frame, and the lower ends of the reinforcing rods are connected with non-corners of the bottom frame. The vertical columns are arranged at the corners of the top mounting frame and the bottom frame, meanwhile, the reinforcing rods are additionally arranged to connect the non-corner areas of the top mounting frame and the bottom frame, and a three-dimensional supporting system of the corner vertical columns and the non-corner reinforcing rods is formed. Stress caused by sea wave impact, water flow disturbance and wind load can be dispersed, bending deformation and vibration amplitude of the top mounting frame are reduced, fatigue damage of the frame structure is avoided, and the overall structural strength of the platform is improved.

Description

Technical Field

[0001] This invention relates to the field of floating photovoltaic platform technology, and in particular, to a floating offshore photovoltaic platform. Background Technology

[0002] Offshore photovoltaics, as an important form of expanding the photovoltaic industry into marine space, can effectively utilize vast unused marine areas and avoid the problem of scarce land resources on land. Among them, floating offshore photovoltaic platforms have been widely studied and applied in nearshore, lake, and reservoir waters because they do not require underwater pile foundation construction, have strong adaptability, and short construction cycles.

[0003] Existing floating offshore photovoltaic (PV) platforms typically consist of a floating foundation, a support frame, and a PV panel installation structure. The support frame usually connects the upper and lower structures via columns, with fixed supports only at the corners of the frame. However, the marine environment is complex, with continuous wave impacts, current disturbances, and wind loads. Relying solely on corner columns for support creates vulnerable, suspended areas on the upper PV mounting frame, making them susceptible to significant bending deformation and vibration under load. Long-term use can lead to fatigue damage to the frame structure, affecting not only the installation stability and power generation efficiency of the PV panels but also reducing the overall structural strength and lifespan of the platform. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a floating offshore photovoltaic platform.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A floating offshore photovoltaic platform includes: a bottom frame; a plurality of first floating cylinders installed on the bottom frame; a top mounting frame located above the bottom frame and equipped with flexible cables for installing photovoltaic panels; a plurality of columns, the upper ends of which are respectively connected to the corners of the top mounting frame and the lower ends of which are respectively connected to the corners of the bottom frame; and a reinforcing rod, the upper end of which is connected to the non-corner parts of the top mounting frame and the lower end of which is connected to the non-corner parts of the bottom frame.

[0006] Furthermore, the bottom frame is provided with extension rods on both sides, and the ends of the extension rods are connected to the top mounting frame by diagonal braces.

[0007] Furthermore, a second floating cylinder is installed on the column, and an anti-icing component is installed on the column. The anti-icing component includes an upper hoop, a lower hoop, and an ice-breaking blade. The upper and lower hoops are both connected to the ice-breaking blade. The ice-breaking blade is arranged in a spaced-around pattern around the outer periphery of the second floating cylinder. The upper hoop is clamped to the column and located above the second floating cylinder. The lower hoop is clamped to the column and located below the second floating cylinder.

[0008] Furthermore, the anti-icing component is assembled from multiple segmented components arranged in a circular pattern. Each segmented component includes an upper support hoop, a lower support hoop, and an ice-breaking blade. The upper support hoops of the multiple segmented components are arranged in a circular pattern and connected by fasteners to hold the column tightly. The lower support hoops of the multiple segmented components are arranged in a circular pattern and connected by fasteners to hold the column tightly. The ice-breaking blade is fixedly connected to the upper and lower support hoops. The upper support hoop and the ice-breaking blade are connected by a first connecting strip. The lower support hoop and the ice-breaking blade are connected by a second connecting strip. Multiple ice-breaking blades are arranged in a circular pattern on the same segmented component, and multiple ice-breaking blades on the same segmented component are connected in series by arc-shaped strips, with multiple arc-shaped strips distributed vertically at intervals.

[0009] Furthermore, the segmented component includes an upper limit hoop and a lower limit hoop, the outer periphery of which are fixedly connected to the ice-breaking blade; the lower end face of the upper limit hoop is in contact with the upper end face of the second float tube, and the upper end face of the lower limit hoop is in contact with the lower end face of the second float tube. The upper limit hoops of multiple segmented components are arranged in a ring and spliced ​​together by fasteners to hold the column tightly. The lower limit hoops of multiple segmented components are arranged in a ring and spliced ​​together by fasteners to hold the column tightly.

[0010] Furthermore, the bottom frame includes bottom side rods connected end to end; the first floating cylinder is installed on the bottom side rods; the top mounting frame includes top side rods connected end to end, the top side rods being correspondingly positioned above the bottom side rods; the upper end of the column is connected to the end connection of two adjacent top side rods, and the lower end is connected to the end connection of two adjacent bottom side rods; the upper end of the reinforcing rod is connected to the middle of the top side rod, and the lower end is connected to the middle of the bottom side rod.

[0011] Furthermore, a series of reinforcing rods are provided in the area enclosed by the bottom side rods. One end of the series reinforcing rod is connected to one of the bottom side rods, and the other end is connected to one of the other bottom side rods.

[0012] Furthermore, a third float is installed on the tandem reinforcing rod.

[0013] Furthermore, the bottom side rod is provided with a threaded hole; the first floating cylinder is composed of a first half-cylinder and a second half-cylinder and is fitted onto the bottom side rod; the first half-cylinder and the second half-cylinder are joined together to form a clearance hole aligned with the threaded hole; the top side rod is provided with a through hole aligned with the threaded hole; the bottom of the reinforcing rod is provided with a threaded section that is threaded to the threaded hole, and the top of the reinforcing rod passes through the through hole and is fixedly connected to the top side rod; and the reinforcing rod can limit the first half-cylinder and the second half-cylinder so that the two remain joined together.

[0014] Furthermore, the first half-cylinder has a first mating surface, the first mating surface is provided with a protruding first protrusion, and the first mating surface is provided with a recessed first slot; the second half-cylinder has a second mating surface, the second mating surface is provided with a protruding second protrusion, and the second mating surface is provided with a recessed second slot; the first protrusion is embedded in the second slot, and the second protrusion is embedded in the first slot; the reinforcing rod includes a limiting shaft segment passing through the first protrusion and the second protrusion.

[0015] The present invention has the following beneficial effects: By installing columns at the corners of the top mounting frame and the bottom frame, and adding reinforcing rods to connect the non-corner areas, a three-dimensional support system of corner columns and non-corner reinforcing rods is formed, effectively filling the weak points of non-corner suspension caused by traditional corner-only support. This system can disperse the stress from wave impact, water flow disturbance, and wind loads, reducing the bending deformation and vibration amplitude of the top mounting frame, preventing fatigue damage to the frame structure, improving the overall structural strength of the platform, extending its service life, and ensuring the stability of photovoltaic panel installation, ensuring that power generation efficiency is not affected by structural deformation. Multiple first-stage floating cylinders installed on the bottom frame provide stable foundation buoyancy for the platform. Combined with the support structure of columns and reinforcing rods, this lowers the overall center of gravity of the platform, reducing tilting and swaying under the influence of sea waves, improving the platform's stability in complex marine environments, and preventing damage to photovoltaic modules or loosening of connections due to platform swaying. While strengthening support performance, it does not require excessive increases in structural weight and material usage, making it more economical than traditional reinforcement solutions.

[0016] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of another embodiment of the present invention; Figure 3 yes Figure 2 A partial structural decomposition diagram; Figure 4 This is a schematic diagram of the second half-cylinder; Figure 5 This is a schematic diagram of the structure of the first half-cylinder; Figure 6 This is a three-dimensional sectional view of the first floating tube; Figure 7 This is a partial structural schematic diagram of another embodiment of the present invention; Figure 8 This is a schematic diagram of the decomposed structure of the anti-icing component.

[0018] Legend: Bottom frame 100, extension rod 110, diagonal brace 111, bottom side rod 120, threaded hole 121, series reinforcing rod 130, third floating tube 131; First float 200, clearance hole 201, first half-tube 210, first mating surface 211, first protrusion 213, first half-limiting groove 2131, first slot 214, first clearance groove 215, first limiting hole 216, L-shaped limiting structure 217, vertical protrusion 218, limiting block 219, second half-tube 220, second mating surface 221, second protrusion 223, second half-limiting groove 2231, second slot 224, second clearance groove 225, second limiting hole 226, L-shaped limiting groove 227, vertical slot 228, card slot 229; Top mounting bracket 300, flexible cable 301, top side rod 310, through hole 320, countersunk groove 321; 400 column, 410 second floating tube; Reinforcing rod 500, threaded section 510, rod head 520, round shaft 530, threaded shaft 540, fastening nut 541, limiting shaft section 550; Anti-icing component 600, upper hoop 610, lower hoop 620, ice-breaking blade 630, first connecting strip 631, second connecting strip 632, segmented component 640, upper support hoop 641, lower support hoop 642, arc-shaped strip 650, upper limit hoop 660, lower limit hoop 670, connecting block 680. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a floating offshore photovoltaic platform, comprising a bottom frame 100, a plurality of first floating cylinders 200, a top mounting frame 300, a plurality of columns 400, and a reinforcing rod 500.

[0024] Multiple first floats 200 are mounted on the base frame 100.

[0025] The top mounting bracket 300 is located above the bottom frame 100, and the top mounting bracket 300 is equipped with flexible cables 301 for mounting photovoltaic panels.

[0026] The upper ends of the multiple columns 400 are connected to the corners of the top mounting frame 300, and the lower ends are connected to the corners of the bottom frame 100.

[0027] The upper end of the reinforcing rod 500 is connected to the non-corner part of the top mounting bracket 300, and the lower end is connected to the non-corner part of the bottom frame 100.

[0028] This invention provides a floating offshore photovoltaic platform. By installing columns 400 at each corner of the top mounting frame 300 and the bottom frame 100, and adding reinforcing rods 500 to connect the non-corner areas of the two, a three-dimensional support system of corner columns and non-corner reinforcing rods is formed. This effectively fills the weak points of non-corner suspension caused by traditional corner-only support. It can disperse the stress caused by wave impact, water flow disturbance and wind load, reduce the bending deformation and vibration amplitude of the top mounting frame 300, avoid fatigue damage to the frame structure, improve the overall structural strength of the platform, extend its service life, and ensure the stability of photovoltaic panel installation, ensuring that power generation efficiency is not affected by structural deformation. Multiple first floating cylinders 200 installed on the bottom frame 100 provide stable basic buoyancy for the platform. Together with the support structure of columns and reinforcing rods, it can lower the overall center of gravity of the platform, reduce the tilting and swaying amplitude under the action of sea waves, improve the stability of the platform in complex marine environments, and avoid damage to photovoltaic modules or loosening of connections due to platform swaying. While enhancing support performance, it does not require excessive increase in structural weight and material usage, making it more economical than traditional reinforcement solutions. The flexible cable 301 installed on the top mounting frame 300 can flexibly adapt to the installation requirements of photovoltaic panels. The photovoltaic panels can be fixed to the flexible cable 301 by clamps or clips. The flexible cable 301 can help absorb some of the load impact, further preventing microcracks in the photovoltaic modules. Combined with the overall fatigue resistance and deformation resistance of the structure, it reduces maintenance costs and failure risks throughout the entire life cycle, making it suitable for long-term use in complex waters such as deep seas.

[0029] Reference Figure 1 In some embodiments of the present invention, extension rods 110 are provided on both sides of the bottom frame 100, and the ends of the extension rods 110 are connected to the top mounting frame 300 by diagonal braces 111. The extension rods 110 expand the load-bearing range of the bottom frame 100, and together with the diagonal braces 111, form an additional diagonal support structure for the extended end of the bottom frame, the diagonal braces, and the top mounting frame, which complements the original support system of the corner columns 400 and the non-corner reinforcing rods 500. This diagonal support can effectively decompose the lateral loads and vertical loads generated by sea winds and waves, further reduce the fatigue risk of the frame structure, improve the platform's anti-overturning and anti-deformation capabilities in complex marine environments, and ensure the long-term stable operation of the structure.

[0030] Reference Figure 3 and Figure 4In some embodiments of the present invention, a second floating cylinder 410 is installed on the column 400, and an anti-icing component 600 is installed on the column 400. The anti-icing component 600 includes an upper hoop 610, a lower hoop 620, and an ice-breaking blade 630. The upper hoop 610 and the lower hoop 620 are both connected to the ice-breaking blade 630. The ice-breaking blades 630 are arranged in a spaced-around pattern around the outer periphery of the second floating cylinder 410. The upper hoop 610 is clamped to the column 400 and located above the second floating cylinder 410. The lower hoop 620 is clamped to the column 400 and located below the second floating cylinder 410. The ice-breaking blade 630 is V-shaped, with its center protruding outward in a horizontal direction away from the second floating cylinder 410. The V-shaped design optimizes ice-breaking efficiency and load distribution.

[0031] The second floating cylinder 410 installed on the column 400 provides additional buoyancy supply based on the first floating cylinder 200, forming a dual buoyancy guarantee of basic buoyancy of the bottom frame and reserve buoyancy of the column. This effectively increases the buoyancy redundancy of the platform, allowing it to accommodate the mounting requirements of larger capacity photovoltaic modules, enhancing the stability of the platform in wind and waves, and preventing the platform from sinking or tilting due to insufficient buoyancy. The ice-breaking blades 630 of the anti-icing component 600 are spaced around the outer periphery of the second floating cylinder 410. When the water freezes in cold water or there is an impact from floating ice, the ice-breaking blades 630 can quickly break through the floating ice or weaken the impact force of the floating ice with their sharp structure, preventing the floating ice from directly impacting the second floating cylinder 410 and the column 400. This reduces the compression, wear, and frost heave damage of the structure caused by the ice layer, improving the adaptability and service life of the platform in high-latitude, cold, icy waters. The upper hoop 610 and lower hoop 620 are respectively clamped to the column 400 and located on the upper and lower sides of the second floating cylinder 410. This not only achieves a stable connection between the anti-icing component 600 and the column 400, but also provides upper and lower limit for the second floating cylinder 410, preventing it from shifting axially along the column 400 under the impact of water flow or waves. This ensures the stability of buoyancy supply and the effectiveness of the anti-icing structure, further enhancing the overall structure's collaborative working capability. The spaced arrangement of the upper hoop 610, lower hoop 620, and icebreaking blade 630 reduces the area exposed to waves, minimizing their impact. This allows water flow to enter between the upper hoop 610, lower hoop 620, and icebreaking blade 630, abandoning the large-area enveloping structure of traditional conical structures. This optimizes the water flow field distribution around the anti-icing structure, reduces the structure's obstruction and disturbance to waves, thereby reducing the wave load on the anti-icing structure itself, alleviating fatigue damage caused by waves, and extending its service life.

[0032] Reference Figure 7 and Figure 8In some embodiments of the present invention, the anti-icing component 600 is assembled from multiple segmented components 640 arranged in a circular pattern. Each segmented component 640 includes an upper support hoop 641, a lower support hoop 642, and an ice-breaking blade 630. The upper support hoops 641 of the multiple segmented components 640 are arranged in a circular pattern and spliced ​​together by fasteners to hold the column 400. The lower support hoops 642 of the multiple segmented components 640 are arranged in a circular pattern and spliced ​​together by fasteners to hold the column 400. The ice-breaking blade 630 is fixedly connected to the upper support hoop 641 and the lower support hoop 642. The upper support hoop 641 and the ice-breaking blade 630 are connected by a first connecting strip 631. The lower support hoop 642 and the ice-breaking blade 630 are connected by a second connecting strip 632. Multiple ice-breaking blades 630 on the same segmented component 640 are arranged in a circular pattern, and multiple ice-breaking blades 630 on the same segmented component 640 are connected in series by arc-shaped strips 650, and multiple arc-shaped strips 650 are vertically spaced. The upper hoop 610 is formed by splicing together upper support hoops 641 on multiple segmented components 640 around their ends. The lower hoop 620 is formed by splicing together lower support hoops 642 on multiple segmented components 640 around their ends. (Refer to...) Figure 3 The upper support hoop 641 has connecting blocks 680 at both ends, and each connecting block 680 has a connecting hole. By aligning the connecting holes on two connecting blocks 680, inserting bolts, and tightening nuts, adjacent upper support hoop 641s can be spliced. The lower support hoop 642, upper limit hoop 660, and lower limit hoop 670 can all be spliced ​​in this way. It is understood that the arc-shaped strips on the same segment can be spliced ​​using fasteners, or the ends of the arc-shaped strips on the segment can be designed not to protrude, meaning that the ends of the arc-shaped strips on the segment are fitted and fixed to the two ice-breaking blades (through welding or fasteners), without protruding from the ice-breaking blades.

[0033] The anti-icing component 600 is assembled from multiple segmented components 640. It does not require overall installation. After the column 400 and the second floating cylinder 410 are installed, the upper support 641 and lower support 642 of each segmented component 640 are spliced ​​together and tightly hugged to the column 400 using fasteners. The installation operation is flexible and is especially suitable for offshore on-site construction scenarios. If the anti-icing component 600 needs to be replaced or repaired in the future, the damaged segmented component 640 can be disassembled individually without the need for overall removal, reducing maintenance difficulty and cost.

[0034] The ice-breaking blades 630 of the segment 640 are fixed to the upper and lower supports 641 and 642 respectively via the first connecting strip 631 and the second connecting strip 632, forming a stable unit structure. Simultaneously, multiple ice-breaking blades 630 on the same segment 640 are connected in series via vertically spaced arc-shaped strips 650, enhancing the connection strength and collaborative stress-bearing capacity between the ice-breaking blades 630. This prevents individual ice-breaking blades 630 from breaking or deforming under the impact of floating ice, improving the overall impact resistance and durability of the anti-icing component 600. The stress generated by the impact of floating ice can be quickly transferred to the column 400 and the bottom frame 100 through the ice-breaking blades 630, connecting strips, and supports, avoiding structural damage caused by localized stress concentration and further ensuring the structural safety of the platform in icy environments.

[0035] Reference Figure 7 and Figure 8 In a further embodiment of the present invention, the segment 640 includes an upper limit hoop 660 and a lower limit hoop 670, the outer peripheries of which are fixedly connected to the ice-breaking blade 630; the lower end face of the upper limit hoop 660 is in contact with the upper end face of the second float 410, and the upper end face of the lower limit hoop 670 is in contact with the lower end face of the second float 410. The upper limit hoops 660 of the multiple segment 640 are arranged around each other and spliced ​​together by fasteners to hold the column 400. The lower limit hoops 670 of the multiple segment 640 are arranged around each other and spliced ​​together by fasteners to hold the column 400. The lower end face of the upper limit clamp 660 is attached to the upper end face of the second float cylinder 410, and the upper end face of the lower limit clamp 670 is attached to the lower end face of the second float cylinder 410, forming a bidirectional upper and lower limit on the second float cylinder 410. This effectively restricts the displacement of the second float cylinder 410 along the axial direction of the column 400, preventing it from shifting or swaying under the impact of wind, waves, currents, or floating ice, ensuring the stability of the buoyancy supply of the second float cylinder 410. At the same time, it prevents the relative position deviation between the anti-icing component 600 and the float cylinder due to the displacement of the second float cylinder 410, ensuring the anti-icing effect of the ice-breaking blade 630. The outer periphery of the upper limit clamp 660 and the lower limit clamp 670 are fixedly connected to the ice-breaking blade 630, and are spliced ​​and tightly held in place by fasteners, making the anti-icing component 600, the second float cylinder 410, and the column 400 form a tighter integrated structure. When the ice-breaking blade 630 is subjected to the impact of floating ice, the stress can be transferred to the second floating cylinder 410 and the column 400 through the limiting hoop, thereby dispersing the local stress and preventing the ice-resistant component 600 or the second floating cylinder 410 from being damaged due to excessive stress on its own, thus improving the overall structure's collaborative load-bearing capacity.

[0036] Reference Figure 1In some embodiments of the present invention, the bottom frame 100 includes bottom side rods 120 connected end to end; the first float 200 is mounted on the bottom side rods 120; the top mounting frame 300 includes top side rods 310 connected end to end, with the top side rods 310 correspondingly positioned above the bottom side rods 120; the upper end of the column 400 is connected to the end connection of two adjacent top side rods 310, that is, the corner of the top mounting frame is the end connection of two adjacent top side rods 310; the lower end of the column 400 is connected to the end connection of two adjacent bottom side rods 120, that is, the corner of the bottom frame 100 is the end connection of two adjacent bottom side rods 120. The upper end of the reinforcing rod 500 is connected to the middle of the top side rod 310, and the lower end is connected to the middle of the bottom side rod 120. The middle parts of the top side bar 310 and the middle parts of the bottom side bar 120 are the non-end positions of the two bars, namely the non-corner areas of the bottom frame 100 and the top mounting frame 300. The bottom frame 100 is composed of bottom side bars 120 connected end to end, and the top mounting frame 300 is composed of top side bars 310 connected end to end. The top side bars 310 are correspondingly located above the bottom side bars 120, so that the upper and lower frame structures are adapted and the force transmission path is more direct. The column 400 connects the end joints of adjacent top side bars 310 and bottom side bars 120, and the reinforcing bar 500 connects the middle part of the top side bar 310 and the middle part of the bottom side bar 120, forming a multi-support structure of corner column support and middle reinforcing bar. This can specifically disperse the end and middle stress of the top side bars 310 and the bottom side bars 120, avoid bending deformation of the side bars due to large span, and improve the overall rigidity and load-bearing capacity of the frame structure.

[0037] It is understandable that the second float 410 and the third float 131 can also adopt the splicing installation method of the first float. The installation and fixing are achieved by fasteners. The structure of the fasteners includes the threaded section of the reinforcing rod and the limiting shaft section, while the rest of the structure of the reinforcing rod is not included.

[0038] Reference Figure 1In some embodiments of the present invention, a series reinforcing rod 130 is provided within the area enclosed by the bottom side rods 120. One end of the series reinforcing rod 130 is connected to one of the bottom side rods 120, and the other end is connected to one of the other bottom side rods 120. That is, the series reinforcing rod 130 connects two different bottom side rods 120 in series. The series reinforcing rod 130 connects different bottom side rods 120, forming a cross-support structure inside the bottom frame 100. This effectively fills the stress gaps inside the bottom frame 100, disperses the local stress of the bottom side rods 120, and prevents the bottom frame 100 from undergoing in-plane deformation or torsion under wave impact, water flow disturbance, or upper load. This improves the overall rigidity and stability of the bottom frame 100 and provides a more stable support foundation for the upper structure. The series reinforcing rods 130 make the bottom side rods 120 of the bottom frame 100 form a whole that pulls on each other and shares the load, avoiding fatigue damage caused by excessive load on a single bottom side rod 120. At the same time, the load transferred from the superstructure to the bottom frame 100 can be evenly distributed to each bottom side rod 120, ensuring the uniform distribution of buoyancy and support force, and further improving the overall stability and anti-overturning ability of the platform.

[0039] Reference Figure 1 In some embodiments of the present invention, a third float 131 is installed on the series reinforcing rod 130. The third float 131 is installed on the series reinforcing rod 130 inside the bottom frame 100, forming a multi-dimensional buoyancy distribution system with the first float 200 on the bottom side rod 120 and the second float 410 on the column 400. This system ensures that buoyancy evenly covers the entire area of ​​the bottom frame 100, preventing the bottom frame 100 from tilting or sinking due to insufficient local buoyancy, and further improving the stability of the platform in complex marine environments.

[0040] Reference Figure 2 and Figure 3 In a further embodiment of the present invention, the bottom side rod 120 is provided with a threaded hole 121; the first floating cylinder 200 is formed by assembling a first half-cylinder 210 and a second half-cylinder 220 and is sleeved on the bottom side rod 120; the first half-cylinder 210 and the second half-cylinder 220 are assembled to form an avoidance hole 201 aligned with the threaded hole 121; the top side rod 310 is provided with a through hole 320 aligned with the threaded hole 121; the bottom of the reinforcing rod 500 is provided with a threaded section 510 that is threadedly connected to the threaded hole 121, and the top of the reinforcing rod 500 passes through the through hole 320 and is fixedly connected to the top side rod 310; and the reinforcing rod 500 can limit the first half-cylinder 210 and the second half-cylinder 220 so that the two remain assembled. Understandably, both the first and second half-tubes are made of materials with a density less than that of water, preferably with a greater density difference from water to provide better buoyancy. For example, the outer shell is made of polyethylene (such as high-density polyethylene or high linear polyethylene), and the interior is filled with foam material (such as polystyrene foam).

[0041] The first float 200 is composed of a first half-tube 210 and a second half-tube 220, which can be directly fitted onto the bottom side rod 120 without complicated installation. This eliminates the need for the first half-tube 210 and the second half-tube 220 to be assembled and then fitted onto the end of the bottom side rod 120 during installation. Instead, they can be directly assembled and fixed at the target installation position on the bottom side rod 120, avoiding the installation sequence limitation of existing integral structures that require the first float to be installed first and then the frame rod. The bottom of the reinforcing rod 500 is threaded to the threaded hole 121 of the bottom side rod 120 through the threaded section 510, and the top is fixed by passing through the through hole 320 of the top side rod 310. While providing support for the upper and lower frames, it also provides lateral restraint for the assembled first half-tube 210 and the second half-tube 220, preventing them from separating or shifting under the impact of water flow or waves, and ensuring the installation stability and buoyancy supply effectiveness of the first float 200. The modular design of the first floating cylinder 200 and the integrated connection structure of the reinforcing rod 500 simplify the installation process. The first half-cylinder 210 and the second half-cylinder 220 can be assembled and fitted onto the bottom side rod 120 first, and then the floating cylinder is simultaneously fixed by installing the reinforcing rod 500. This reduces the need for separate fixing of the floating cylinder, shortens assembly time, and lowers the difficulty and cost of offshore construction. The reinforcing rod 500 forms a stable connection with the bottom side rod 120 and the top side rod 310 via threaded connections, and also closely cooperates with the first floating cylinder 200. This creates an integrated structure where the bottom frame 100, top mounting bracket 300, reinforcing rod 500, and first floating cylinder 200 mutually constrain and work collaboratively, improving the connection strength of each component and the overall load-bearing performance, further ensuring the structural stability of the platform under complex loads. The reinforcing rod 500 not only strengthens the structure of the suspended areas of the top side rod 310 and the bottom side rod 120, but also limits the splicing of the first half-cylinder 210 and the second half-cylinder 220, achieving multiple effects.

[0042] Reference Figure 4 and Figure 5In a further embodiment of the present invention, in some embodiments of the present invention, the first half-cylinder 210 has a first mating surface 211, the first mating surface 211 is provided with a protruding first protrusion 213, and the first mating surface 211 is provided with a recessed first slot 214; the second half-cylinder 220 has a second mating surface 221, the second mating surface 221 is provided with a protruding second protrusion 223, and the second mating surface 221 is provided with a recessed second slot 224; the first protrusion 213 is embedded in the second slot 224, and the second protrusion 223 is embedded in the first slot 214; the reinforcing rod 500 includes a limiting shaft segment 550 passing through the first protrusion 213 and the second protrusion 223. The first protrusion 213 of the first half-cylinder 210 is embedded in the second slot 224 of the second half-cylinder 220, and the second protrusion 223 of the second half-cylinder 220 is embedded in the first slot 214 of the first half-cylinder 210, forming a concave-convex fitting structure. This concave-convex fitting structure can limit the relative displacement between the first half-cylinder 210 and the second half-cylinder 220, improving the overall integrity after assembly. The limiting shaft section 550 of the reinforcing rod 500 passes through the first protrusion 213 and the second protrusion 223. On the basis of the original lateral limiting, it further achieves precise fixation of the assembled parts through axial insertion, completely preventing the first half-cylinder 210 and the second half-cylinder 220 from separating, shifting, or rotating in complex marine environments, ensuring the structural integrity and buoyancy stability of the first floating cylinder 200. The assembled protrusion and slot mating structure, along with the insertion and fixing of the limiting shaft segment 550, allows the force on the first float 200 to be transmitted through the protrusion to the reinforcing rod 500, and then from the reinforcing rod 500 to the bottom frame 100 and the top mounting bracket 300. This disperses the stress at the float assembly points, preventing damage to the assembly surface due to concentrated stress. It also enhances the coordinated stress-bearing capacity of the float and the overall structure, further extending the platform's service life. Specifically, the first protrusion 213 has a first half-limiting groove 2131 that connects with the first clearance groove 215 to form a first limiting hole 216; the second protrusion 223 has a second half-limiting groove 2231 that connects with the second clearance groove 225 to form a second limiting hole 226; and the limiting shaft segment 550 passes through the first limiting hole 216 and the second limiting hole 226.

[0043] Specifically, the first mating surface 211 is provided with a radially extending first clearance groove 215; the second mating surface 221 is provided with a radially extending second clearance groove 225; the clearance hole is formed by splicing the first clearance groove 215 and the second clearance groove 225.

[0044] The reinforcing rod 500 not only completes the splicing and locking of the first half-cylinder 210 and the second half-cylinder 220, but also forms a solid integrated structure between the two half-cylinders and the bottom side rod 120. Furthermore, the reinforcing rod 500 simultaneously connects the first protrusion 213, the second protrusion 223, and the bottom side rod 120, distributing the stress points across the protrusions and frame rods. This avoids the problem of stress concentration at connection points in existing fixed structures and reduces the risk of fatigue damage to the reinforcing rod 500 and its connecting parts under long-term alternating loads.

[0045] In a specific embodiment of the present invention, the top of the reinforcing rod 500 is coaxially arranged with a rod head 520, a round shaft 530, and a threaded shaft 540 from top to bottom; the diameters of the rod head 520, round shaft 530, and threaded shaft 540 decrease sequentially; the round shaft 530 is adapted to and inserted into the through hole 320; the threaded shaft 540 is threadedly connected to a fastening nut 541 to cooperate with the rod head 520 to clamp and fix the top side rod 310. Through the stepped structure with progressively decreasing diameters, precise assembly positioning and fastening are achieved, effectively transferring the load between the upper and lower frames and avoiding loosening of connections or damage to components caused by localized stress concentration. A countersunk groove 321 is provided at the upper end of the through hole 320, into which the rod head 520 is embedded. Two fastening nuts are provided. The two fastening nuts form a double-nut anti-loosening structure.

[0046] Reference Figure 6In a further embodiment of the present invention, the first mating surface 211 is provided with an L-shaped limiting structure 217, and the second mating surface 221 is provided with an L-shaped limiting groove 227 for the L-shaped limiting structure 217 to be inserted. The L-shaped limiting structure 217 includes a vertical protrusion 218 and a limiting block 219. The vertical protrusion 218 protrudes vertically from the first mating surface 211. The limiting block 219 is connected to the outer end of the vertical protrusion 218 and extends along the axial direction of the first semi-cylinder 210. The L-shaped limiting groove 227 includes a vertical slot 228 and a slot 229. The vertical slot 228 is recessed in the second mating surface 221. The slot 229 is located at the inner end of the vertical slot 228 and extends along the axial direction of the second semi-cylinder 220 for the axial insertion of the limiting block 219. The insertion and cooperation of the L-shaped limiting structure 217 and the L-shaped limiting groove 227 adds an axial limiting dimension to the first semi-cylinder 210 and the second semi-cylinder 220. The vertical protrusion 218 and the vertical slot 228 are width-matched, and the limiting block 219 and the slot 229 are matched, which can effectively limit the relative displacement of the two half-cylinders along the axial direction and avoid misalignment. The multiple cooperation of the L-shaped limiting structure 217 and the L-shaped limiting groove 227, the first protrusion and the second slot, the second protrusion and the first slot, and the limiting shaft segment and the first limiting hole and the second limiting hole restricts the relative movement of the half-cylinders in all directions, including radial, circumferential and axial directions, so that the spliced ​​state of the first floating cylinder 200 reaches a high degree of stability, and further improves the overall structure's resistance to wind and waves and water flow. In addition, in order to avoid structural interference, the axial dimension of the second slot 224 is larger than that of the first protrusion 213; the axial dimension of the first slot 214 is larger than that of the second protrusion 223, so that when the limiting block 219 is inserted into the slot 229, the first protrusion 213 can move axially in the second slot 224 and the second protrusion 223 can move axially in the first slot 214.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating offshore photovoltaic platform, characterized in that, include: Base frame (100); Multiple first floats (200) are mounted on the base frame (100); A top mounting bracket (300) is located above the bottom frame (100) and is used to install photovoltaic panels; Multiple columns (400) are connected at their upper ends to the corners of the top mounting frame (300) and at their lower ends to the corners of the bottom frame (100). The reinforcing rod (500) is connected at its upper end to the non-corner part of the top mounting bracket (300) and at its lower end to the non-corner part of the bottom frame (100).

2. The floating offshore photovoltaic platform according to claim 1, characterized in that, The bottom frame (100) is provided with extension rods (110) on both sides, and the ends of the extension rods (110) are connected to the top mounting frame (300) by diagonal bracing rods (111).

3. The floating offshore photovoltaic platform according to claim 1 or 2, characterized in that, A second floating cylinder (410) is installed on the column (400), and an anti-ice component (600) is installed on the column (400). The anti-ice component (600) includes an upper hoop (610), a lower hoop (620), and an ice-breaking blade (630). The upper hoop (610) and the lower hoop (620) are both connected to the ice-breaking blade (630). The ice-breaking blades (630) are arranged in a spaced-around pattern around the outer periphery of the second floating cylinder (410). The upper hoop (610) is clamped to the column (400) and located above the second floating cylinder (410). The lower hoop (620) is clamped to the column (400) and located below the second floating cylinder (410).

4. The floating offshore photovoltaic platform according to claim 3, characterized in that, The anti-icing component (600) is assembled from multiple segmented components (640) arranged in a circular pattern. Each segmented component (640) includes an upper support hoop (641), a lower support hoop (642), and an ice-breaking blade (630). The upper support hoops (641) of the multiple segmented components (640) are arranged in a circular pattern and joined together with fasteners to hold the column (400). The lower support hoops (642) of the multiple segmented components (640) are arranged in a circular pattern and joined together with fasteners to hold the column (400). The ice-breaking blade (630) and the upper support hoop (641) The lower support hoop (642) is fixedly connected; the upper support hoop (641) is connected to the ice-breaking blade (630) through the first connecting strip (631); the lower support hoop (642) is connected to the ice-breaking blade (630) through the second connecting strip (632); multiple ice-breaking blades (630) on the same segment (640) are arranged in a circle, and multiple ice-breaking blades (630) on the same segment (640) are connected in series through arc-shaped strips (650), and multiple arc-shaped strips (650) are vertically spaced.

5. The floating offshore photovoltaic platform according to claim 4, characterized in that, The segmented component (640) includes an upper limit hoop (660) and a lower limit hoop (670). The outer periphery of the upper limit hoop (660) and the lower limit hoop (670) are fixedly connected to the ice-breaking blade (630). The lower end face of the upper limit hoop (660) is in contact with the upper end face of the second float (410), and the upper end face of the lower limit hoop (670) is in contact with the lower end face of the second float (410). The upper limit hoops (660) of the multiple segmented components (640) are arranged around each other and spliced ​​together by fasteners to hold the column (400). The lower limit hoops (670) of the multiple segmented components (640) are arranged around each other and spliced ​​together by fasteners to hold the column (400).

6. The floating offshore photovoltaic platform according to claim 1, characterized in that, The bottom frame (100) includes bottom side rods (120) connected end to end; the first floating tube (200) is installed on the bottom side rods (120); the top mounting frame (300) includes top side rods (310) connected end to end, and the top side rods (310) are correspondingly arranged above the bottom side rods (120); the upper end of the column (400) is connected to the end connection of two adjacent top side rods (310), and the lower end is connected to the end connection of two adjacent bottom side rods (120); the upper end of the reinforcing rod (500) is connected to the middle of the top side rod (310), and the lower end is connected to the middle of the bottom side rod (120).

7. The floating offshore photovoltaic platform according to claim 6, characterized in that, A series of reinforcing rods (130) are provided in the area enclosed by the bottom side rods (120). One end of the series reinforcing rods (130) is connected to one of the bottom side rods (120), and the other end is connected to one of the other bottom side rods (120).

8. The floating offshore photovoltaic platform according to claim 7, characterized in that, A third float (131) is installed on the tandem reinforcing rod (130).

9. The floating offshore photovoltaic platform according to claim 6, characterized in that, The bottom side rod (120) is provided with a threaded hole (121); the first floating cylinder (200) is composed of a first half-cylinder (210) and a second half-cylinder (220) and is sleeved on the bottom side rod (120); the first half-cylinder (210) and the second half-cylinder (220) are assembled to form a clearance hole (201) aligned with the threaded hole (121); the top side rod (310) is provided with a through hole (320) aligned with the threaded hole (121); the bottom of the reinforcing rod (500) is provided with a threaded section (510) that is threaded to the threaded hole (121), the top of the reinforcing rod (500) passes through the through hole (320) and is fixedly connected to the top side rod (310); and the reinforcing rod (500) can limit the first half-cylinder (210) and the second half-cylinder (220) so that the two remain assembled.

10. The floating offshore photovoltaic platform according to claim 9, characterized in that, The first half-cylinder (210) has a first mating surface (211), the first mating surface (211) is provided with a protruding first protrusion (213), and the first mating surface (211) is provided with a recessed first slot (214); the second half-cylinder (220) has a second mating surface (221), the second mating surface (221) is provided with a protruding second protrusion (223), and the second mating surface (221) is provided with a recessed second slot (224); the first protrusion (213) is embedded in the second slot (224), and the second protrusion (223) is embedded in the first slot (214); the reinforcing rod (500) includes a limiting shaft section (450) passing through the first protrusion (213) and the second protrusion (223).

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