Floating platform structure of offshore floating photovoltaic system and use method

Abstract

The invention relates to the field of offshore photovoltaic power generation, and discloses an offshore floating type photovoltaic floating platform structure and a using method, the offshore floating type photovoltaic floating platform structure comprises a plurality of rectangular floating block structures, and the rectangular floating block structures are mutually connected through connecting assemblies to form a large-scale multi-floating-block hinged floating platform structure; each rectangular floating block structure comprises a platform frame, a buoy, an upper truss and a wave-resistant belt, the buoy is arranged below the platform frame, the upper truss is arranged above the platform frame, the wave-resistant belt is arranged in the middle of the platform frame, and the multiple rectangular floating block structures are connected into the large multi-floating-block hinged floating platform structure through connecting assemblies; vertical constraint is released through the connecting assemblies in the main wave resisting direction, the rectangular floating blocks fluctuate along with fluctuation of waves, adverse working conditions under the action of sea waves can be better resisted, the stability of the floating island structure is maintained, the sea waves are blocked and shunted through the wave resisting belts, the sea waves are prevented from slapping the photovoltaic assemblies from the middles of the floating blocks, and the photovoltaic assemblies are prevented from being damaged. And stable operation of the photovoltaic module is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore photovoltaic power generation, and in particular to a floating platform structure of an offshore floating photovoltaic system and a use method thereof. Background Art

[0002] With the rapid increase in global demand for renewable energy, especially solar energy, a clean and renewable energy form, it has become an important direction for energy transformation in various countries. Under the guidance of the "carbon peak and carbon neutrality" goals, my country is accelerating the development of offshore wind and solar resources, and the development of offshore photovoltaics has gradually become a hot topic.

[0003] Compared with onshore photovoltaic power generation, offshore photovoltaic platforms not only have a wider area and longer sunshine time, but also can effectively avoid the occupation of land resources and the damage to the ecological environment. In addition, offshore photovoltaic platforms can also complement other marine energy projects such as offshore wind power to improve the overall energy utilization efficiency.

[0004] However, offshore photovoltaic platforms operate in complex marine environments for a long time and are subject to a variety of complex environmental loads such as wind and waves. Their structural design and operation and maintenance face huge challenges.

[0005] A Chinese patent with application number CN202321928169.4 discloses a floating photovoltaic system on water, including a transverse float, a connecting rod and a component bracket, wherein the transverse floats are multiple and arranged in rows; the connecting rods are multiple and are all connected between two adjacent transverse floats, and the multiple connecting rods are arranged in sequence along the transverse extension direction of the transverse float, and the spacing between two adjacent connecting rods is adapted to the transverse size of the photovoltaic component; there are multiple component brackets and they are arranged in sequence on the connecting rods, and two adjacent component brackets are respectively used to support and fix two opposite corner frames of the photovoltaic component along the longitudinal direction; however, in this scheme, the photovoltaic panel is lower than the entire photovoltaic bracket, and the waves can easily hit the photovoltaic panel, causing damage to the photovoltaic panel, thereby affecting the safe and efficient operation of the entire device.

[0006] Therefore, it is necessary to invent a floating platform structure and a use method of an offshore floating photovoltaic system to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a floating platform structure and a use method suitable for an offshore floating photovoltaic system, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: A floating platform structure of an offshore floating photovoltaic system, comprising a platform frame, a buoy is arranged below the platform frame, an upper truss is arranged on the top of the platform frame, a photovoltaic panel is arranged on the top of the upper truss, a wave-proof assembly is arranged below the photovoltaic panel, and the wave-proof assembly is connected to the platform frame; A plurality of the platform frames are connected to each other through connection components to form a large multi-floating block articulated floating platform structure; The platform frame comprises an inner rectangular steel frame, the inner side of which is connected to an outer rectangular steel frame via a connecting arch, and the cross-sections of the inner rectangular steel frame and the outer rectangular steel frame are both rectangular cylindrical; The wave-proof assembly comprises a double-ear block, which is symmetrically arranged on the inner side of the inner rectangular steel frame, and a wave-proof belt is arranged in the middle of the double-ear block, and holes are opened at both ends of the wave-proof belt; The double-ear block is provided with a sleeve, the sleeve passes through the holes at both ends of the wave-breaking belt, a bolt assembly is provided in the sleeve, and the bolt assembly passes through the sleeve to fix the wave-breaking belt and the double-ear block; The double-ear blocks are provided with symmetrically distributed reinforcing ribs, and the reinforcing ribs are connected to the side surfaces of the inner rectangular steel frame.

[0009] Preferably, the connecting assembly includes a pin assembly and a cable clamp assembly, and the pin assembly and the cable clamp assembly are both arranged on the outside of the outer ring rectangular steel frame, the cable clamp assembly is arranged along the main wave-resistant direction, and the pin assembly is arranged along the secondary wave-resistant direction.

[0010] Preferably, the pin assembly comprises a single-ear plate and a double-ear plate which are arranged opposite to each other, the single-ear plate and the double-ear plate are both arranged outside the outer ring rectangular steel frame, an anti-collision rubber is arranged between the single-ear plate and the double-ear plate, and the single-ear plate and the double-ear plate which are arranged opposite to each other are connected by a pin member; The outer sides of the single-ear plate and the double-ear plate are both provided with first rib plates, and the first rib plates are in contact with and fixed to the outer side surface of the outer ring rectangular steel frame.

[0011] Preferably, the cable clamp assembly comprises an upper cable clamp plate and a lower cable clamp plate which are arranged opposite to each other, the upper cable clamp plate and the lower cable clamp plate are both arranged outside the outer ring rectangular steel frame, and a second rib is provided at the connection between the upper cable clamp plate and the lower cable clamp plate and the outer ring rectangular steel frame; A cable body is arranged between the upper and lower plates of the cable clamp, and high-strength bolts and high-strength nuts are arranged on both sides of the cable body. The high-strength bolts and high-strength nuts pass through the bolt holes of the upper and lower plates of the cable clamp to clamp the cable body together.

[0012] Preferably, the buoy is fixedly arranged on the lower surface of the connecting arch, and a plurality of partitions are arranged inside the buoy, and the partitions divide the buoy into a plurality of sealed cavities, and the sealed cavities are not connected to each other.

[0013] Preferably, an expansion part is provided between two oppositely disposed partitions, and the internal pressure of the expansion part is greater than the internal pressure of the sealed cavity between the two opposite partitions. After the sealed cavity is damaged, the expansion part will expand due to the change in pressure.

[0014] Preferably, the upper truss includes an upper chord arranged above the platform frame, a plurality of diagonal web members are arranged between the upper chord and the platform frame, cross bars are arranged in sequence at the junctions of the diagonal web members and the upper chord, and a lower chord is arranged below the diagonal web members.

[0015] Preferably, the connecting arches are distributed in an array along the inner side of the outer rectangular steel frame, and the two ends of the connecting arches are fixedly connected to the inner side of the outer rectangular steel frame and the outer side of the inner rectangular steel frame respectively.

[0016] A method for using a floating platform structure of an offshore floating photovoltaic system, the method comprising the following steps: S1. First, assemble the platform frame, install it on the upper surface of the buoy, and fix it to the buoy through the connecting arch; S2. Secondly, install the wave-proof assembly in the middle of the platform frame and fix it to the side of the inner ring rectangular steel frame through double ear blocks and reinforcing ribs; S3. Then, the upper truss is installed above the platform frame, and the connecting assembly is installed on the side of the platform frame to form a complete rectangular floating block structure; S4. Finally, the assembled multiple rectangular buoyant block structures are pushed into the water, and the multiple rectangular buoyant block structures are connected to each other through connecting components to form a large multi-buoyant block articulated floating platform structure.

[0017] Technical effects and advantages of the present invention: 1. The present invention forms a platform frame and a buoyancy for the entire platform structure by arranging two rectangular buoys. The buoy is between the two rectangular buoys and is lower and has a larger draft than the rectangular buoy, thereby ensuring the stability of the center of gravity of the floating block structure. It is also easier to ensure the stability of the center of gravity under the influence of wind and waves, thereby ensuring the stability of the entire photovoltaic platform structure.

[0018] 2. The present invention arranges a connection component to connect multiple rectangular floating blocks to each other to form a large-scale multi-floating block articulated floating platform structure. There are two types of connection components, one is a pin assembly arranged perpendicular to the main wave-resistant direction, and the other is a cable clamp assembly arranged along the main wave-resistant direction. When the wind and waves are too turbulent, the vertical constraint is released by the pin assembly, and each rectangular floating block rises and falls with the waves, which can better resist the adverse working conditions under the action of waves and maintain the stability of the floating island structure. The pin assembly also includes an anti-collision rubber and a first rib. The first rib can enhance the stability of the connection between the ear plate and the platform frame, and the anti-collision rubber can reduce the impact of squeezing or collision between the single ear plate and the double ear plate. At the same time, the cable clamp assembly is used to prevent the entire large-scale multi-floating block articulated floating platform structure from being affected by damage at a certain rectangular floating block connection, thereby improving the risk resistance of the platform structure.

[0019] 3. The present invention provides an anti-wave component to effectively protect the photovoltaic panels on the upper part of the structure. The anti-wave belt decomposes and blocks the waves that beat upward from the middle part of the floating block structure to prevent the waves from overturning the photovoltaic panels from the middle part of the platform frame, thereby ensuring the stable operation of the photovoltaic panels. The anti-wave belt is prevented from being worn by the bolt threads by providing a sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the platform frame and buoy structure of the present invention; Figure 3 This is a schematic diagram of the structure of the wave-proof component of the present invention; Figure 4 This is a schematic diagram of the structure of the connection assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the pin assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the cable clamp assembly of the present invention; Figure 7 It is a schematic diagram of the upper truss structure of the present invention; Figure 8 is a cross-sectional view of a buoy of the present invention; Fig. 9 It is a schematic diagram of a large-scale multi-buoyant block articulated floating platform structure formed by mutually articulating the floating block structures of the present invention; Fig.10 It is a schematic diagram of the structure inside the buoy of the present invention.

[0021] In the figure: 1, platform frame; 101, connecting arch; 102, inner ring rectangular steel frame; 103, outer ring rectangular steel frame; 2, buoy; 201, partition; 202, expansion part; 3, upper truss; 301, upper chord; 302, diagonal web; 303, cross bar; 304, lower chord; 4, wave-proof assembly; 401, wave-proof belt; 402, double ear block; 403, sleeve; 404, bolt assembly; 405, reinforcing rib; 5, connecting assembly; 501, pin assembly; 5011, single ear plate; 5012, double ear plate; 5013, pin member; 5014, first rib plate; 5015, anti-collision rubber; 502, cable clamp assembly; 5021. Upper plate of cable clamp; 5022. Lower plate of cable clamp; 5023. Cable body; 5024. High-strength bolts; 5025. High-strength nuts; 5026. Second rib; 6. Photovoltaic panel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figures 1 to 10 As shown, the present invention provides a floating platform structure suitable for an offshore floating photovoltaic system, comprising a plurality of rectangular floating island components, including a platform frame 1, a buoy 2, an upper truss 3, a wave-breaking component 4, a connecting component 5, and a photovoltaic panel 6. The platform frames 1 are connected to each other through the connecting component 5 to form a large multi-floating block articulated floating platform structure. The upper truss 3 is arranged above the platform frame 1, the buoy 2 is arranged below the platform frame 1, and the wave-breaking component 4 is arranged in the middle of the platform frame 1.

[0024] The platform frame 1 includes an inner rectangular steel frame 102 and an outer rectangular steel frame 103 connected by a plurality of connecting arches 101. The cross-sections of the inner rectangular steel frame 102 and the outer rectangular steel frame 103 are the same rectangular cylinder. The outer rectangular steel frame 103 is arranged on the periphery of the inner rectangular steel frame 102, and the connecting arches 101 are arranged between the inner rectangular steel frame 102 and the outer rectangular steel frame 103.

[0025] The upper truss 3 includes an upper chord 301 arranged above the platform frame 1, a plurality of diagonal web members 302 are arranged between the upper chord 301 and the platform frame 1, cross bars 303 are arranged in sequence at the intersection of the diagonal web members 302 and the upper chord 301, and a lower chord 304 is arranged below the diagonal web members 302.

[0026] By setting up the upper truss 3, the height of the photovoltaic panel 6 can be raised, thereby preventing the waves from directly hitting the photovoltaic panel 6 and causing damage to the photovoltaic panel 6, thereby affecting the safe and efficient operation of the entire device; at the same time, since the upper chord rod 301, the diagonal web rod 302 and the lower chord rod 304 form a plurality of triangular support systems between the photovoltaic panel 6 and the platform frame 1, the connection strength of the photovoltaic panel 6 is improved, and the ability of the photovoltaic panel 6 to resist the impact of waves is improved.

[0027] The wave-breaking component 4 includes a wave-breaking belt 401, a double-ear block 402, a sleeve 403, a bolt assembly 404, and a reinforcing rib 405. Holes are opened at both ends of the wave-breaking belt 401. The middle hole of the double-ear block 402 inside the inner rectangular steel frame 102 is provided with a sleeve 403. The sleeve 403 passes through the holes at both ends of the wave-breaking belt 401. The bolt assembly 404 passes through the sleeve 403 to fix the wave-breaking belt 401 and the double-ear block 402. The reinforcing rib 405 is arranged on the upper and lower sides of the double-ear block 402 and is connected to the side of the inner rectangular steel frame 102.

[0028] The wave-proof components 4 can be arranged in multiple groups, and the multiple groups of wave-proof components 4 are evenly distributed on the inner side of the inner rectangular steel frame 102 .

[0029] The connection assembly 5 includes a pin assembly 501 and a cable clamp assembly 502. Both the pin assembly 501 and the cable clamp assembly 502 are arranged outside the outer rectangular steel frame 103. The cable clamp assembly 502 is arranged along the main anti-wave direction, and the pin assembly 501 is arranged along the secondary anti-wave direction.

[0030] The pin assembly 501 includes a single ear plate 5011, a double ear plate 5012, a pin member 5013, a first rib 5014, and an anti-collision rubber 5015. The single ear plate 5011 and the double ear plate 5012 are both arranged on the outside of the outer rectangular steel frame 103. The first rib 5014 is arranged on the side of the single ear plate 5011 or the double ear plate 5012 and is in contact and fixed with the outer surface of the outer rectangular steel frame 103. The anti-collision rubber 5015 is arranged between the single ear plate 5011 and the double ear plate 5012. The pin member 5013 passes through the single ear plate 5011 and the double ear plate 5012 to connect the two.

[0031] The cable clamp assembly 502 includes an upper cable clamp plate 5021, a lower cable clamp plate 5022, a cable body 5023, high-strength bolts 5024, high-strength nuts 5025, and a second rib 5026. The upper cable clamp plate 5021 and the lower cable clamp plate 5022 are both arranged on the outside of the outer rectangular steel frame 103. The second rib 5026 is arranged on the upper cable clamp plate 5021 or the lower cable clamp plate 5022 to contact and fix with the outer surface of the outer rectangular steel frame 103. The cable body 5023 is arranged between the upper cable clamp plate 5021 and the lower cable clamp plate 5022. The high-strength bolts 5024 and the high-strength nuts 5025 pass through the bolt holes of the upper cable clamp plate 5021 and the lower cable clamp plate 5022 so that they can clamp the cable body 5023 together.

[0032] When in use, the platform frame 1 is used in conjunction with the pontoon 2, and the connecting arch 101 is welded on the outside of the inner rectangular steel frame 102 and the inside of the outer rectangular steel frame 103 to form the platform frame 1, and the lower surface of the connecting arch 101 is fixedly connected to the pontoon 2. The platform frame 1 and the pontoon 2 provide buoyancy for the entire platform structure. The pontoon 2 is between the inner rectangular steel frame 102 and the outer rectangular steel frame 103, and the pontoon 2 is lower than the platform frame 1 and has a larger draft, thereby ensuring that the center of gravity of the floating block structure sinks more stably, and it is also easier to ensure the stability of the center of gravity under the influence of wind and waves, thereby ensuring the stability of the entire photovoltaic platform structure. A partition 201 is arranged inside the pontoon 2, and the partition 201 can prevent water from seeping into the entire pontoon 2 at the rupture and causing the entire structure to sink.

[0033] like Fig.10 As shown, an expansion part 202 is provided between two oppositely disposed partitions 201 , and the internal pressure of the expansion part 202 is greater than the internal pressure of the sealed cavity between the two opposite partitions 201 . When the sealed cavity is damaged, the expansion part 202 will expand due to the change in pressure.

[0034] If a certain part of the float 2 is damaged, the gas inside the sealed cavity corresponding to the damaged part will gradually leak, thereby causing the internal pressure in the sealed cavity to gradually decrease. Since the internal pressure of the expansion part 202 is greater than the internal pressure in the sealed cavity, when the internal pressure in the sealed cavity decreases, the volume of the expansion part 202 will gradually increase under the influence of the pressure difference, and the outer diameter of the expansion part 202 will gradually move toward the inner wall of the float 2, thereby blocking the damaged part and preventing water from filling the inside of the sealed cavity, causing the center of gravity of the platform frame 1 to be unbalanced.

[0035] Even if the volume of the expansion part 202 after expansion is not enough to seal the damaged part of the buoy 2, as the outer diameter of the expansion part 202 gradually increases and gradually occupies most of the area in the sealed cavity, the water flow entering the sealed cavity is less than that in the sealed cavity without the expansion part 202, thereby minimizing the phenomenon of imbalance of the center of gravity of the platform frame 1.

[0036] like Figure 1 and Figure 3 As shown, the wave-proof component 4 is arranged in the middle part of the platform frame 1. When the waves hit upward from the middle of the floating block structure, the wave-proof component 4 can effectively decompose and block the waves, prevent the waves from overturning the photovoltaic panel 6 from the middle part of the platform frame 1, and ensure the stable operation of the photovoltaic panel 6. The wave-proof component 4 includes a wave-proof belt 401, a double-ear block 402, a sleeve 403, a bolt assembly 404, and a reinforcing rib 405. The material of the wave-proof belt 401 is fluororubber, which is not only resistant to high temperature but also has excellent oil resistance, chemical medium resistance, acid and alkali resistance, and is very suitable for use in marine environments. At the same time, it has good mechanical strength , which greatly improves the use effect and service life of the wave-breaking belt 401, the double-ear block 402 is welded to the inner side of the inner rectangular steel frame 102, and the reinforcing ribs 405 are welded on the side of the double-ear block 402 and the inner side of the inner rectangular steel frame 102 to enhance the stability of the double-ear block 402. Two holes are opened at each end of the wave-breaking belt 401, and the sleeve 403 passes through the holes of the wave-breaking belt 401 and the double-ear block 402. The bolt assembly 404 passes through the sleeve 403 and is tightened and fixed with a nut to connect the wave-breaking belt 401 with the double-ear block 402. By adding the sleeve 403, the bolt thread is prevented from wearing the wave-breaking belt 401.

[0037] like Figures 4 to 6 As shown, a plurality of rectangular buoys are interconnected by a connection assembly 5 to form a large multi-buoy articulated floating platform structure. The connection assembly 5 includes a pin assembly 501 and a cable clamp assembly 502. The cable clamp assembly 502 is arranged along the main wave-resistant direction, and the pin assembly 501 is arranged along the secondary wave-resistant direction. The pin assembly 501 includes a single ear plate 5011, a double ear plate 5012, a pin member 5013, a first rib plate 5014, and an anti-collision rubber 5015. The single ear plate 5011 and the double ear plate 5012 are welded to the outside of the outer ring rectangular steel frame 103.

[0038] When in use, the first rib 5014 is welded to the sides of the single ear plate 5011 and the double ear plate 5012 to enhance the stability of the ear plate and reduce the risk of the single ear plate 5011 and the double ear plate 5012 bending or falling off the outer rectangular steel frame 103. When the single ear plate 5011 and the double ear plate 5012 are connected, an anti-collision rubber 5015 is added between the two to reduce the impact of squeezing or collision between the single ear plate 5011 and the double ear plate 5012 to a large extent, thereby extending the service life of the structure.

[0039] like Figure 6As shown, the cable clamp assembly 502 includes an upper cable clamp plate 5021, a lower cable clamp plate 5022, a cable body 5023, a high-strength bolt 5024, a high-strength nut 5025, and a second rib 5026. The upper cable clamp plate 5021 and the lower cable clamp plate 5022 are welded to the outside of the outer ring rectangular steel frame 103. At the same time, ribs are welded on the sides of the upper cable clamp plate 5021 and the lower cable clamp plate 5022 to enhance the stability of the cable clamp. The upper cable clamp plate 5021 is connected to the lower cable clamp plate 5022 by high-strength bolts 5024.

[0040] When in use, the upper plate 5021 of the cable clamp and the lower plate 5022 of the cable clamp are used to clamp the cable body 5023 together through the tightening force of the high-strength bolts 5024. When the wind and waves in the main wave-resistant direction are large, the pin assembly 501 releases the vertical constraint, and each rectangular buoyant block rises and falls with the waves, which can better resist the adverse working conditions under the action of waves. The cable clamp assembly 502 enhances the connection performance between the buoys, and at the same time does not hinder the up and down rise and fall of the buoys in the main wave-resistant direction, effectively preventing the entire large-scale multi-buoy articulated floating platform structure from being affected by damage to a certain rectangular buoy connection, thereby improving the risk resistance of the platform structure.

[0041] The present invention also provides a method for using a floating platform structure of an offshore floating photovoltaic system. The method is implemented by using a floating platform structure of an offshore floating photovoltaic system, and comprises the following steps: S1. First, assemble the platform frame 1, install the platform frame 1 on the upper surface of the buoy 2, and fix it to the buoy 2 through the connecting arch 101; S2. Next, install the wave-proof assembly 4 in the middle of the platform frame 1 and fix it to the side of the inner rectangular steel frame 102 through the double ear block 402 and the reinforcing rib 405; S3, then, the upper truss 3 is installed above the platform frame 1, and the connecting assembly 5 is installed on the side of the platform frame 1 to form a complete rectangular floating block structure; S4. Finally, the assembled multiple rectangular buoyant block structures are pushed into the water, and the multiple rectangular buoyant block structures are connected to each other through the connecting assembly 5 to form a large-scale multi-buoyant block articulated floating platform structure.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0043] Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating platform structure of an offshore floating photovoltaic system, characterized in that: The invention comprises a platform frame (1), a buoy (2) is arranged below the platform frame (1), an upper truss (3) is arranged on the top of the platform frame (1), a photovoltaic panel (6) is arranged on the top of the upper truss (3), a wave-proof component (4) is arranged below the photovoltaic panel (6), and the wave-proof component (4) is connected to the platform frame (1); A plurality of the platform frames (1) are connected to each other via a connection assembly (5) to form a large multi-floating block articulated floating platform structure; The platform frame (1) comprises an inner rectangular steel frame (102), the inner side of the inner rectangular steel frame (102) being connected to an outer rectangular steel frame (103) via a connecting arch (101), and the cross-sections of the inner rectangular steel frame (102) and the outer rectangular steel frame (103) are both rectangular cylindrical; The wave-proof component (4) comprises a double-ear block (402), wherein the double-ear block (402) is symmetrically arranged on the inner side of the inner rectangular steel frame (102), a wave-proof belt (401) is arranged in the middle of the double-ear block (402), and holes are provided at both ends of the wave-proof belt (401); The double-ear block (402) is provided with a sleeve (403), the sleeve (403) passes through holes at both ends of the wave-breaking belt (401), a bolt assembly (404) is provided in the sleeve (403), and the bolt assembly (404) passes through the sleeve (403) to fix the wave-breaking belt (401) and the double-ear block (402); The double-ear block (402) is provided with symmetrically distributed reinforcing ribs (405), and the reinforcing ribs (405) are connected to the side surfaces of the inner rectangular steel frame (102).

2. The floating platform structure of the offshore floating photovoltaic system according to claim 1 is characterized by: The connection assembly (5) comprises a pin assembly (501) and a cable clamp assembly (502), wherein the pin assembly (501) and the cable clamp assembly (502) are both arranged outside the outer ring rectangular steel frame (103), the cable clamp assembly (502) is arranged along the main wave-resistant direction, and the pin assembly (501) is arranged along the secondary wave-resistant direction.

3. The floating platform structure of the offshore floating photovoltaic system according to claim 2 is characterized by: The pin shaft assembly (501) comprises a single-ear plate (5011) and a double-ear plate (5012) arranged opposite to each other, the single-ear plate (5011) and the double-ear plate (5012) are both arranged outside the outer ring rectangular steel frame (103), an anti-collision rubber (5015) is arranged between the single-ear plate (5011) and the double-ear plate (5012), and the single-ear plate (5011) and the double-ear plate (5012) arranged opposite to each other are connected via a pin shaft member (5013); The outer sides of the single-ear plate (5011) and the double-ear plate (5012) are both provided with first rib plates (5014), and the first rib plates (5014) are in contact and fixed with the outer side surface of the outer ring rectangular steel frame (103).

4. The floating platform structure of the offshore floating photovoltaic system according to claim 2 is characterized by: The cable clamp assembly (502) comprises an upper cable clamp plate (5021) and a lower cable clamp plate (5022) which are arranged opposite to each other, wherein the upper cable clamp plate (5021) and the lower cable clamp plate (5022) are both arranged outside the outer rectangular steel frame (103), and a second rib plate (5026) is provided at the connection between the upper cable clamp plate (5021) and the lower cable clamp plate (5022) and the outer rectangular steel frame (103); A cable body (5023) is provided between the cable clamp upper clamp plate (5021) and the cable clamp lower clamp plate (5022), and high-strength bolts (5024) and high-strength nuts (5025) are provided on both sides of the cable body (5023). The high-strength bolts (5024) and high-strength nuts (5025) pass through bolt holes of the cable clamp upper clamp plate (5021) and the cable clamp lower clamp plate (5022) so as to clamp the cable body (5023) together.

5. The floating platform structure of the offshore floating photovoltaic system according to claim 1, characterized in that: The buoy (2) is fixedly arranged on the lower surface of the connecting arch (101), and a plurality of partitions (201) are arranged inside the buoy (2), wherein the partitions (201) divide the buoy (2) into a plurality of sealed cavities, and the sealed cavities are not connected to each other.

6. The floating platform structure of the offshore floating photovoltaic system according to claim 5 is characterized by: An expansion portion (202) is provided between two oppositely disposed partitions (201); the internal pressure of the expansion portion (202) is greater than the internal pressure of the sealed cavity between the two oppositely disposed partitions (201); when the sealed cavity is damaged, the expansion portion (202) will expand due to the change in pressure.

7. The floating platform structure of the offshore floating photovoltaic system according to claim 1, characterized in that: The upper truss (3) comprises an upper chord (301) arranged above the platform frame (1), a plurality of diagonal web members (302) are arranged between the upper chord (301) and the platform frame (1), cross bars (303) are arranged in sequence at the intersections of the diagonal web members (302) and the upper chord (301), and a lower chord (304) is arranged below the diagonal web members (302).

8. The floating platform structure of the offshore floating photovoltaic system according to claim 1, characterized in that: The connecting arches (101) are distributed in an array along the inner side of the outer rectangular steel frame (103), and the two ends of the connecting arches (101) are respectively fixedly connected to the inner side of the outer rectangular steel frame (103) and the outer side of the inner rectangular steel frame (102).

9. A method for using a floating platform structure of an offshore floating photovoltaic system, the method for using is implemented by using the floating platform structure of an offshore floating photovoltaic system as claimed in claim 1, characterized in that: The following steps are involved: S1. First, assemble the platform frame (1), install the platform frame (1) on the upper surface of the buoy (2), and fix it to the buoy (2) via a connecting arch (101); S2. Next, the wave-proof assembly (4) is installed in the middle of the platform frame (1) and fixedly connected to the side of the inner rectangular steel frame (102) through the double ear block (402) and the reinforcing rib (405); S3. Then, the upper truss (3) is installed above the platform frame (1), and the connecting assembly (5) is installed on the side of the platform frame (1) to form a complete rectangular floating block structure; S4. Finally, the assembled multiple rectangular buoyant block structures are pushed into the water, and the multiple rectangular buoyant block structures are connected to each other through the connection assembly (5) to form a large multi-buoyant block articulated floating platform structure.

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