A mooring device for a floating wind power platform

Abstract

A floating wind turbine platform mooring device comprises a platform mooring portion and a ship mooring portion. The platform mooring portion comprises a boarding platform, a platform guardrail, and a platform magnet. The boarding platform is mounted on a column, the platform guardrail is mounted on the edge of the boarding platform, and the platform magnet is mounted within the platform guardrail. The ship mooring portion comprises boarding equipment, a ship guardrail, and a ship magnet. The boarding equipment is mounted on the bow of the ship, the ship guardrail is mounted around the bow, and the ship magnet is mounted within the ship guardrail, and is used to generate repulsive or attractive forces with the platform magnet to cushion collisions or stabilize the ship. The boarding equipment comprises a boarding ladder and a turning motor. The front end of the boarding ladder is connected to a second permanent magnet via a flexible connection structure, which generates an attractive force with the boarding platform. This invention can reduce collision damage caused by waves to the ship itself and the floating platform, allowing for stable mooring of an operation and maintenance vessel, improving boarding safety, and adapting to varying wind and wave conditions and boarding situations.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to a berthing device for a floating wind power platform. Background Art

[0002] Half of the offshore floating wind turbines are located in deep-sea areas, where the sea conditions are more severe than those nearshore, characterized by higher wave heights and faster currents. During the operation and maintenance of deep-sea wind turbines, maintenance vessels often need to lean against marine structures. Waves impact the hull, causing the maintenance vessel to collide with the marine structure. Swells also cause the maintenance vessel to move vertically, which inevitably damages the maintenance vessel and offshore structures. There are also significant safety hazards when boarding. To protect the hull and floating platform, as well as to ensure the safety of personnel, a mooring device must be installed at the point where the maintenance vessel and the platform lean against each other. Traditional mooring devices cannot control the movement and posture of the vessel as it approaches and docks, and are also affected by swells, making boarding dangerous. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a floating wind power platform berthing device that can be smoothly docked in relatively severe sea conditions. The device uses flexible device connection, electromagnetic attraction and other methods to suppress the relative movement between the operation and maintenance vessel and the floating platform caused by waves and currents, making the boarding process safer.

[0004] The present invention is achieved through the following technical solutions:

[0005] A floating wind power platform mooring device includes a platform mooring part and a ship mooring part. The platform mooring part includes a boarding platform, a platform guardrail and a platform magnet. The boarding platform is arranged on the column of the floating wind power platform and is U-shaped when viewed from above. The platform guardrail is arranged on the edge of the boarding platform and is used to protect the contact between the hull and the boarding platform, play a buffering role and avoid hard collisions. The platform magnet is arranged in the platform guardrail.

[0006] The ship berthing part includes boarding equipment, ship guardrails and ship magnets. The boarding equipment is arranged on the bow of the hull and is used to dock with the boarding platform. The boarding personnel are transferred between the boarding platform and the hull by the boarding equipment. The ship guardrails are arranged around the bow of the hull and are used for contact protection between the hull and the boarding platform. The ship magnets are arranged in the ship guardrails and are used to cushion possible collisions between the hull and the boarding platform through the repulsive force between the hull and the platform magnets when the hull approaches the boarding platform, and to stabilize the connection between the hull and the boarding platform through the attractive force between the hull and the platform magnets when the hull is berthed, so that the hull can be docked safely.

[0007] Furthermore, the boarding platform includes a left guardrail, a right guardrail and a platform deck, the left guardrail and the right guardrail are vertically arranged on the columns of the floating wind power platform, and the platform deck is arranged between the left guardrail and the right guardrail for docking with the boarding equipment. The boarding personnel come to the platform deck from the hull via the boarding equipment, or return to the hull from the platform deck via the boarding equipment. The left and right ends of the platform deck are respectively connected to the left guardrail and the right guardrail, and the inner side thereof is connected to the columns of the floating wind power platform, and its width is smaller than the width of the left guardrail and the right guardrail of the platform deck, so that the left guardrail, the right guardrail and the platform deck form a U-shape in the horizontal direction (viewed from above), and the bow of the hull enters the U-shaped groove when the hull is moored.

[0008] Furthermore, the height of the platform deck is lower than the top ends of the left guardrail and the right guardrail, so that the left guardrail, the right guardrail and the platform deck form a U-shape in the vertical direction (when viewed from the front), which is equivalent to having guardrails on both sides to protect passengers when they stand on the platform deck, thereby improving safety.

[0009] Furthermore, the platform guardrail is arranged inside the U-shaped groove surrounded by the left guardrail, the right guardrail and the platform deck. The platform guardrail is a D-shaped rubber fender, the D-shaped plane fits the boarding platform, and the platform magnet is embedded on the D-shaped plane.

[0010] Furthermore, the marine fender is a D-shaped rubber fender, the D-shaped plane fits around the bow, and the marine magnet is embedded on the D-shaped plane.

[0011] Furthermore, the platform magnet is a first electromagnet, the first electromagnet is connected to a power supply, and the power supply is arranged on the boarding platform; the ship magnet is a first permanent magnet.

[0012] Furthermore, the boarding equipment includes a boarding ladder and a flipping motor, one end of the boarding ladder is connected to the bow position of the hull through a rotating shaft, the flipping motor is driven and connected to the rotating shaft of the boarding ladder, and the other end of the boarding ladder is a free end. The flipping motor is used to drive one end of the boarding ladder to rotate around its rotating shaft until the free end of the boarding ladder rests on the boarding platform.

[0013] Furthermore, the front end of the free end of the boarding ladder is connected to a second permanent magnet through a flexible connection structure, and a second electromagnet that cooperates with the second permanent magnet is provided on the boarding platform. The second electromagnet and the second permanent magnet are attracted to each other to achieve the connection and fixation between the boarding ladder and the boarding platform.

[0014] Furthermore, the flexible connection structure includes a flexible material, which is composed of several metal links connected to each other along the length and width directions; or the flexible material is a multi-layer fiber woven material; or the flexible material is composed of multiple layers of metal sheets with different curvatures and a certain elasticity. When the boarding ladder is placed stationary on the hull, the metal sheets bend upward, and the curvature of the metal sheets decreases from top to bottom. When the boarding ladder rotates and docks with the boarding platform, due to the adsorption force between the second permanent magnet and the boarding platform and the elastic action of the metal sheets, one end of the boarding ladder is fixed on the boarding platform; or the flexible material includes multiple parallel arranged springs.

[0015] Furthermore, the flipping motor is driven and connected to the rotating shaft of the boarding ladder through a gear set, and the gear set includes a driving gear and a driven gear that mesh with each other, the driving gear is driven and connected to the output shaft of the flipping motor, and the driven gear is driven and connected to the rotating shaft of the boarding ladder; a chain or a folding telescopic rod is connected between the boarding ladder and the hull for control and protection during the rotation of the boarding ladder, one end of the folding telescopic rod is hinged on the bow, and the other end is hinged at the middle position of the boarding ladder, and the folding telescopic rod is hinged by two or more connecting rods.

[0016] The present invention sets a U-shaped embarkation platform on the column of the floating platform, sets fenders around the embarkation platform and the bow of the berthed vessel, and embeds magnets in the fenders. The magnetic attraction is used to fix the vessel when the vessel is berthed, thereby reducing the collision damage caused by waves to the vessel itself and the floating platform, so that the maintenance vessel can be berthed safely and the personnel can walk smoothly. The magnets on the embarkation platform are set as electromagnets. The magnitude and direction of the resultant force on the vessel can be changed by changing the magnitude of the current passing through the electromagnets to adapt to different wind and wave conditions. At the same time, the direction of the current passing through the electromagnets can be changed to select the desired direction. There is repulsion or attraction between the boarding platform and the bow to meet the requirements of both approaching and berthing; the boarding ladder is automatically docked through a motor drive, and an electromagnet is provided at the front end of the boarding ladder through a flexible connection structure. The boarding ladder is fixed to the boarding platform through the electromagnet. The flexible connection structure makes the connection between the boarding ladder and the boarding platform a flexible connection, which can avoid rigid damage to the boarding ladder caused by the relative movement of the ship and the floating platform, thereby improving the safety of the boarding process; the D-shaped rubber chord has a cavity structure, which can improve the protection performance, and the magnet parts can be easily installed and fixed; the overall structure is simple and easy to operate and implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0018] Figure 2 It is a partial enlarged schematic diagram of the structure of an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the platform berthing part in an embodiment of the present invention.

[0020] Figure 4 Schematic top view of the platform berthing part in an embodiment of the present invention.

[0021] Figure 5 It is a front schematic diagram of the platform berthing part in an embodiment of the present invention.

[0022] Figure 6 Schematic cross-sectional view of the platform chord guard in an embodiment of the present invention.

[0023] Figure 7 Schematic diagram of the structure of the platform guard string in an embodiment of the present invention.

[0024] Figure 8 Schematic diagram of the installation of the platform guard string in an embodiment of the present invention.

[0025] Figure 9 Schematic diagram of the structure of the ship berthing part in an embodiment of the present invention.

[0026] Figure 10 It is a schematic side structural diagram of an embodiment of the present invention.

[0027] Figure 11 Schematic diagram of the structure of the bow of a ship's berthing part in an embodiment of the present invention.

[0028] Figure 12 It is a structural schematic diagram of the boarding equipment in the ship berthing part in an embodiment of the present invention.

[0029] Figure 13 This is a partial structural diagram of another embodiment of the boarding equipment in the ship berthing part in an embodiment of the present invention.

[0030] Figure 14 This is a partial structural diagram of another embodiment of the boarding equipment in the ship berthing part in an embodiment of the present invention.

[0031] Figure 15 This is a partial structural diagram of another embodiment of the boarding equipment in the ship berthing part in an embodiment of the present invention.

[0032] Figure numerals: 1-platform berthing part; 2-marine berthing part; 11-column; 12-guard bollard; 13-platform deck; 14-guard bollard guard string; 15-platform deck guard string; 16-platform magnet; 21-bow; 22-boarding equipment; 23-marine guard string; 131-second electromagnet; 221-boarding ladder; 222-rotating shaft; 223-flip motor; 224-second permanent magnet; 225-flexible connection structure; 226-folding telescopic rod; 2251-metal sheet; 2252-metal chain link; 2253-fiber woven material; 2254-spring; 2261-connecting rod. DETAILED DESCRIPTION

[0033] A floating wind power platform berthing device, such as Figure 1 、 Figure 2 As shown, it includes a platform berthing part 1 and a ship berthing part 2. The platform berthing part 1 includes a boarding platform, a platform guardrail and a platform magnet 16. The boarding platform is arranged on the column 11 of the floating wind power platform. The boarding platform is U-shaped when viewed from above, that is, it is U-shaped from the horizontal direction. The platform guardrail is arranged on the edge of the boarding platform to protect the contact between the hull and the boarding platform, play a buffering role, and avoid hard collisions. The platform magnet 16 is arranged in the platform guardrail.

[0034] The ship berthing part 2 includes a boarding device 22, a ship guardrail 23 and a ship magnet. The boarding device 22 is arranged on the bow 21 of the hull (operation and maintenance ship) and is used to dock with the boarding platform. The boarding personnel transfer between the boarding platform and the hull by the boarding device 22. The ship guardrail 23 is arranged around the bow 21 of the hull and has a similar function to the platform guardrail, which is used for contact protection between the hull and the boarding platform. The ship magnet is arranged in the ship guardrail 23 and is used to cushion the possible collision between the hull and the boarding platform through the repulsive force between the hull and the platform magnet 16 when the hull approaches the boarding platform, and to stabilize the connection between the hull and the boarding platform through the suction force between the hull and the platform magnet 16 when the hull is docked, so that the hull can be docked safely.

[0035] At present, the new wind power operation and maintenance ships are generally Figure 2 、 Figure 11 The catamaran structure shown has a flat bow 21 and a wide deck area above. However, due to its shallow draft, it is easily affected by waves and moves in the vertical direction, which can easily cause danger when boarding. Through the magnetic adsorption effect between the bow 21 and the boarding platform, the bow 21 can be relatively fixed in the U-shape of the boarding platform, reducing the shaking and collision of the hull.

[0036] The embarkation platform is used for docking of the ship (such as the maintenance ship), docking of the embarkation equipment 22 and standing of the embarkation personnel. The U-shaped structure facilitates the entry and fixation of the bow 21. As one of the implementation methods, in this embodiment, Figures 3 to 5 As shown, the boarding platform includes a left guardrail 12, a right guardrail 12 and a platform deck 13. The left guardrail 12 and the right guardrail 12 are relatively vertically arranged on the column 11 of the floating wind power platform. The platform deck 13 is arranged between the left guardrail 12 and the right guardrail 12 and is used to dock with the boarding equipment 22. The boarding personnel come to the platform deck 13 from the hull via the boarding equipment 22, or go back to the hull from the platform deck 13 via the boarding equipment 22. The left and right ends of the platform deck 13 are respectively connected to the left guardrail 12 and the right guardrail 12. The inner side of the platform deck 13 is connected to the column 11 of the floating wind power platform, and its width is smaller than the width of the left guardrail 12 and the right guardrail 12 of the platform deck 13, so that the left guardrail 12, the right guardrail 12 and the platform deck 13 form a U-shape in the horizontal direction (viewed from above). The width of the U-shaped groove is slightly wider than the width of the ship. When the hull is berthed, its bow 21 can enter the U-shaped groove. Figure 3 Corresponding weight-reducing holes can be provided on the left guardrail 12 and the right guardrail 12 to reduce the weight of the embarkation platform and also reduce the flow load of the embarkation platform.

[0037] At the same time, if Figure 5 The height of the platform deck 13 is lower than the top of the left guardrail 12 and the right guardrail 12, so that the left guardrail 12, the right guardrail 12 and the platform deck 13 form a U-shape in the vertical direction (when viewed from the front), which is equivalent to the guardrails 12 on both sides of the left and right sides protecting the passengers when they stand on the platform deck 13, thereby improving safety. The height of the platform deck 13 is slightly higher than the designed freeboard height of the maintenance vessel, which is convenient for the docking of the boarding equipment 22 and for passengers to board the platform. The platform guardrails are arranged inside the U-shaped groove surrounded by the left guardrail 12, the right guardrail 12 and the platform deck 13, and are respectively the guardrail chord 14 and the platform deck chord 15, as shown in FIG. Figure 6 、 Figure 7 As shown, the platform guardrail is a D-shaped rubber fender. The D-shaped structure has a cavity structure and good buffering performance. The platform magnet 16 is embedded in the D-shaped rubber platform guardrail, preferably embedded on the plane outside the D-shaped, and the plane outside the D-shaped is in contact with the boarding platform, as shown in FIG. Figure 8 The rubber fenders are regularly arranged and fixed along the surfaces of the left guard post 12 , the right guard post 12 and the platform deck 13 .

[0038] As one of the embodiments, the ship fender 23 is also a D-shaped rubber fender, similar to the platform fender. The ship magnet is buried in the D-shaped rubber ship fender 23, preferably embedded in the plane outside the D-shape, and the plane outside the D-shape is in contact with the bow 21.

[0039] Repulsion and attraction can be generated between the ship magnet and the platform magnet 16, so at least one of them is an electromagnet. In one embodiment, the platform magnet 16 is a first electromagnet, and the ship magnet is a first permanent magnet. The first electromagnet is connected to a power supply, which is located on the embarkation platform, such as below the platform deck 13. The controller of the platform magnet 16 can be controlled by personnel on the operation and maintenance vessel. Through wireless communication, the power on and off of the first electromagnet and the magnetic pole of the first electromagnet are controlled to achieve repulsion or attraction with the ship magnet.

[0040] The function of the boarding device 22 is to be connected to the boarding platform for people to pass through, and can be a common manual gangway. As one embodiment, in this embodiment, Figures 9 to 11 The boarding equipment 22 includes a boarding ladder 221 and a flip motor 223. One end of the boarding ladder 221 is connected to the bow 21 of the hull through a rotating shaft 222. The flip motor 223 is driven and connected to the rotating shaft 222 of the boarding ladder 221. The other end of the boarding ladder 221 is a free end. The flip motor 223 is used to drive one end of the boarding ladder 221 to rotate around its rotating shaft 222 until the free end of the boarding ladder 221 rests on the boarding platform.

[0041] More specifically, the flip motor 223 is connected to the rotating shaft 222 of the boarding ladder 221 through a gear set, which includes a driving gear and a driven gear that mesh with each other. The driving gear is connected to the output shaft of the flip motor 223, and the driven gear is connected to the rotating shaft 222 of the boarding ladder 221. Figure 10 A chain or foldable telescopic rod 226 is connected between the boarding ladder 221 and the hull to control and protect the boarding ladder 221 during its rotation. If a chain is used, one chain can be provided on each side of the boarding ladder 221, with one end of the chain connected to the deck of the bow 21 and the other end connected to the boarding ladder 221 near its free end. If a foldable telescopic rod 226 is used, it can be formed by two or more hinged connecting rods 2261, with one end of the foldable telescopic rod 226 hinged to the deck of the bow 21 and the other end hinged to the middle of the boarding ladder 221.

[0042] The boarding ladder 221 is generally a rigid structure. In order to make the boarding ladder 221 firmly rest on the boarding platform, as one embodiment, Figure 12The front end of the free end of the boarding ladder 221 is connected to a second permanent magnet 224 via a flexible connection structure 225. A second electromagnet 131 is provided on the boarding platform, cooperating with the second permanent magnet 224. The second electromagnet 131 and the second permanent magnet 224 attract each other to secure the boarding ladder 221 to the boarding platform. Similarly, when the boarding ladder 221 is docked, the second electromagnet 131 is energized to generate electromagnetic force, which attracts and secures the free end of the boarding ladder 221 to the boarding platform.

[0043] The function of the flexible connection structure 225 is to make the second permanent magnet 224 bendable relative to the rigid boarding ladder 221, so that the second permanent magnet 224 can fit tightly with the platform deck 13. The flexible connection structure 225 can be of various existing structures and forms. As one embodiment, Figure 13 The flexible connection structure 225 includes a flexible material, which can be formed by connecting a plurality of metal links 2252 along the length direction and the width direction, similar to a steel watch chain, where the links are arranged horizontally and vertically and hinged, and have a certain degree of flexibility and a certain degree of rigidity; or Figure 14 The flexible material is a multi-layer fiber braided material 2253, and the fiber is preferably a corrosion-resistant high-strength fiber, such as glass fiber, aramid fiber, carbon fiber, polyester fiber, etc., and can be woven from coarse fibers of these fibers; or Figure 15 , the flexible material includes a plurality of springs 2254 arranged in parallel, the springs 2254 are arranged along the width direction of the boarding ladder 221, and have a certain degree of flexibility and rigidity; or, Figure 12 The flexible material is composed of multiple layers of metal sheets 2251 with different curvatures and a certain elasticity. When the boarding ladder 221 is placed on the hull, the metal sheets 2251 bend upward, and the curvature of the metal sheets 2251 decreases from top to bottom. Figure 10 When the boarding ladder 221 rotates and docks with the boarding platform, due to the adsorption force between the second permanent magnet 224 and the boarding platform and the elastic effect of the metal sheet 2251, the metal sheet 2251 bends toward one side of the boarding platform, the second permanent magnet 224 is adsorbed by the second electromagnet 131, and one end of the boarding ladder 221 is fixed on the boarding platform. The metal sheet 2251 can be a stainless steel strip, a thin aluminum plate, etc.

[0044] The method of use of the present invention is as follows: Figure 10When the maintenance ship approaches the embarkation platform and has a large inertia, the first electromagnet in the platform fender around the embarkation platform is turned on by remote control, so that it generates a repulsive force with the first permanent magnet in the ship guardrail 23 of the bow 21. The maintenance ship slows down to a reasonable range and the power supply of the first electromagnet is disconnected. When the maintenance ship docks, it docks in a top-to-bottom manner, controls the hull so that the bow 21 enters the "U"-shaped space of the embarkation platform, and energizes the first electromagnet by remote control, so that it generates an attractive force with the first permanent magnet of the bow 21 to control the left and right movement of the ship. As the ship gradually approaches the platform fender, the fender gradually stabilizes the movement through friction. The turning motor 223 on the deck of the bow 21 is started to rotate the free end of the boarding ladder 221 around its fixed end until it is loaded onto the platform deck 13 of the embarkation platform. The second electromagnet 131 on the embarkation platform is controlled to be energized, and the free end of the boarding ladder 221 is fixed to the platform deck 13 of the embarkation platform due to the suction force of the second permanent magnet 224 at its front end and the second electromagnet 131.

[0045] The hull is flexibly connected to the boarding platform via the boarding ladder 221. Since the operation and maintenance vessel is very light compared to the boarding platform, it performs forced motion. However, due to the electromagnetic traction between the fender of the vessel and the fender of the platform, the shaking of the hull is reduced. By changing the current passing through the first electromagnet, the direction of the resultant force acting on the vessel can be changed, thereby balancing the lateral wave force and allowing the operation and maintenance vessel to dock safely.

[0046] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A floating wind power platform berthing device, characterized in that: The invention comprises a platform berthing part and a ship berthing part, wherein the platform berthing part comprises a boarding platform, a platform guardrail and a platform magnet, wherein the boarding platform is arranged on the column of the floating wind power platform and is U-shaped when viewed from above, the platform guardrail is arranged on the edge of the boarding platform and is used for contact protection between the hull and the boarding platform, and the platform magnet is arranged in the platform guardrail; the ship berthing part comprises a boarding device, a ship guardrail and a ship magnet, wherein the boarding device is arranged on the bow of the hull and is used for docking with the boarding platform, and the boarding personnel are transferred between the boarding platform and the hull by the boarding device, the ship guardrail is arranged around the bow of the hull and is used for contact protection between the hull and the boarding platform, and the ship magnet is arranged in the ship guardrail and is used for cushioning possible collision between the hull and the boarding platform through the repulsive force between the hull and the platform magnet when the hull approaches the boarding platform, and stabilizing the connection between the hull and the boarding platform through the attractive force between the hull and the platform magnet when the hull is berthed, so that the hull can be docked stably; The boarding platform includes a left guardrail, a right guardrail, and a platform deck. The left and right guardrails are vertically arranged on the columns of the floating wind power platform. The platform deck is arranged between the left and right guardrails and is used to dock with the boarding equipment. The left and right ends of the platform deck are respectively connected to the left and right guardrails. The inner side of the platform deck is connected to the columns of the floating wind power platform, and the width of the platform deck is smaller than the width of the left and right guardrails of the platform deck, so that the left and right guardrails and the platform deck form a U-shape in the horizontal direction. When the hull is moored, the bow of the ship enters the U-shaped groove. The height of the platform deck is lower than the top of the left and right guardrails, so that the left and right guardrails and the platform deck form a U-shape in the vertical direction, which is beneficial to the protection of passengers. The platform guardrail is arranged inside the U-shaped groove surrounded by the left guardrail, the right guardrail and the platform deck. The platform guardrail is a D-shaped rubber fender. The D-shaped plane fits the boarding platform, and the platform magnet is embedded on the D-shaped plane.

2. A floating wind power platform berthing device according to claim 1, characterized in that: The marine fender is a D-shaped rubber fender, the D-shaped plane is fitted around the bow, and the marine magnet is embedded on the D-shaped plane.

3. The floating wind power platform berthing device according to claim 1, characterized in that: The platform magnet is a first electromagnet, which is connected to a power supply, and the power supply is arranged on the boarding platform; the ship magnet is a first permanent magnet.

4. The floating wind power platform berthing device according to claim 1, characterized in that: The boarding equipment includes a boarding ladder and a flip motor. One end of the boarding ladder is connected to the bow of the hull through a rotating shaft. The flip motor is driven and connected to the rotating shaft of the boarding ladder. The other end of the boarding ladder is a free end. The flip motor is used to drive one end of the boarding ladder to rotate around its rotating shaft until the free end of the boarding ladder rests on the boarding platform.

5. The floating wind power platform berthing device according to claim 4, characterized in that: The front end of the free end of the boarding ladder is connected to a second permanent magnet through a flexible connection structure, and a second electromagnet that cooperates with the second permanent magnet is provided on the boarding platform. The second electromagnet and the second permanent magnet are attracted to each other to achieve the connection and fixation between the boarding ladder and the boarding platform.

6. The floating wind power platform berthing device according to claim 5, characterized in that: The flexible connection structure includes a flexible material, which is composed of several metal links connected to each other along the length and width directions; or the flexible material is a multi-layer fiber woven material; or the flexible material is composed of multiple layers of metal sheets with different curvatures and a certain elasticity. When the boarding ladder is placed stationary on the hull, the metal sheets bend upward, and the curvature of the metal sheets decreases from top to bottom. When the boarding ladder rotates and docks with the boarding platform, one end of the boarding ladder is fixed on the boarding platform due to the adsorption force between the second permanent magnet and the boarding platform and the elastic action of the metal sheets; or the flexible material includes multiple parallel arranged springs.

7. The floating wind power platform berthing device according to claim 4, characterized in that: The flip motor is driven and connected to the rotating shaft of the boarding ladder through a gear set, and the gear set includes a driving gear and a driven gear that mesh with each other. The driving gear is driven and connected to the output shaft of the flip motor, and the driven gear is driven and connected to the rotating shaft of the boarding ladder; a chain or a folding telescopic rod is connected between the boarding ladder and the hull for control and protection during the rotation of the boarding ladder, one end of the folding telescopic rod is hinged on the bow, and the other end is hinged at the middle position of the boarding ladder, and the folding telescopic rod is hinged by two or more connecting rods.

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