Ocean wind power single pile turnover lifting appliance

Abstract

The invention provides an ocean wind power single pile turnover lifting appliance which comprises a main lifting hook module located on one side of an ocean wind power single pile, an auxiliary lifting hook module is arranged on the other side of the ocean wind power single pile, the main lifting hook module comprises a lifting rod, lifting plates with penetrating holes are fixedly arranged on the two sides of the bottom end of the lifting rod, and balance beams are arranged below the lifting plates. Multiple hanging rings are fixedly arranged at the top end of the balance beam. Compared with the prior art, the device has the following beneficial effects that in the process that the whole ocean wind power single pile is adjusted to be in the vertical state from the horizontal state, the L-shaped plate is turned over, finally, the steel wire rope makes contact with the alarm assembly and is squeezed to make contact with the alarm assembly, and after the whole ocean wind power single pile is adjusted to be in the vertical state from the personal state, an alarm is given in time; according to the marine wind power single pile turning-over adjusting device, the accuracy of marine wind power single pile turning-over adjusting is improved, excessive adjusting is avoided, and the situation that the final wanted adjusting structure is affected is avoided, the arranged lifting hooks effectively meet the requirements of marine wind power single piles of different sizes, and good follow-up connecting and lifting work is carried out.

Description

Technical Field

[0001] This invention is a lifting and hoisting tool for turning over a single pile in offshore wind power, belonging to the marine field. Background Technology

[0002] As the power generation capacity of offshore wind power projects continues to increase, the size and weight of their foundation supports are also growing rapidly. Currently, due to size and weight limitations, monopile offshore wind turbines can only be constructed and shipped horizontally at manufacturing plants, and then vertically driven at sea. Traditional lifting and turning equipment consists of a balance beam, wire ropes, wide-edge shackles, and the lifting equipment itself. However, when using wide-edge shackles on large offshore wind turbine monopiles, the manufacturing cycle is lengthy, and the manufacturing process is difficult and costly. Furthermore, wide-edge shackles are not produced in a single size; their production size depends on the dimensions of the offshore wind turbine monopile itself, requiring the production of shackles of different sizes, further increasing the manufacturing cycle, difficulty, and cost. Therefore, this application proposes an adjustable-size lifting and turning equipment for offshore wind turbine monopiles. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a lifting tool for turning over and installing monopiles in offshore wind power projects.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: A lifting device for turning over a marine wind turbine monopile includes a main hook module located on one side of the marine wind turbine monopile and an auxiliary hook module located on the other side of the marine wind turbine monopile. The main hook module includes a boom, with perforated lifting plates fixed on both sides of the bottom end of the boom. A balance beam is installed below the lifting plates, and multiple lifting rings are fixed on the top of the balance beam. A steel wire rope is threaded through the perforations and lifting rings between the lifting plates. The balance beam has a hollow structure and an adjustment component is installed inside the balance beam. Two adjustment plates are fixed on the adjustment component, and extension plates are fixed on each adjustment plate. A connecting component for connecting the marine wind turbine monopile is fixed on the extension plates. The auxiliary hook module has a hook that hooks onto one end of the marine wind turbine monopile. An L-shaped plate is fixed on one end of the balance beam. A contact alarm component is installed on the L-shaped plate, corresponding to the steel wire rope. An alarm is installed on the contact alarm component and arranged on the L-shaped plate. A loudspeaker cover is also installed on the L-shaped plate to cover the alarm. The top of the loudspeaker cover is open.

[0005] Furthermore, the auxiliary hook module includes an auxiliary hook, with auxiliary lifting plates with auxiliary perforations fixed on both sides of the bottom end of the auxiliary hook. A connecting beam is provided below the auxiliary lifting plates, and multiple auxiliary lifting rings are fixed at the top of the connecting beam. An auxiliary steel wire rope is threaded through the auxiliary lifting plates and between the auxiliary perforations and the auxiliary lifting rings. The connecting beam and the hook are integrally formed to form a C-shaped hook.

[0006] Furthermore, the adjustment assembly includes a dual-axis lead screw rotatably arranged inside the balance beam, and a threaded seat located inside the balance beam is fixedly provided at the top of the adjustment plate, with the threaded seat threadedly sleeved on both ends of the dual-axis lead screw.

[0007] Furthermore, one end of the dual-axis lead screw is fixedly equipped with a manual turntable located outside the balance beam, and the other end of the dual-axis lead screw extends out of the balance beam and is connected to a bearing fixed to the outer wall of the balance beam.

[0008] Furthermore, the connecting assembly includes a fixing plate fixed on the extension plate, an arc-shaped plate fixed on the fixing plate that penetrates into the interior of the offshore wind turbine monopile, a threaded hole being opened at the end of the offshore wind turbine monopile facing the fixing plate, and a mating part being provided on the fixing plate to mate with the threaded hole, with bolts fitting on the mating part and inside the threaded hole.

[0009] Furthermore, the mating component includes multiple mating blocks that are slidably disposed on the outer surface of the fixed plate. The mating blocks are provided with transverse bolt grooves, and the fixed plate is provided with matching through grooves. The bolts spirally enter the threaded holes through the bolt grooves and matching through grooves.

[0010] Furthermore, a limiting slider is fixedly provided at the end of the docking block facing the fixed plate. There are two limiting sliders on each docking block. A vertical limiting groove is opened at the end of the fixed plate facing the docking block, and the limiting slider is slidably set in the vertical limiting groove.

[0011] Furthermore, the contact alarm component includes a setting space on the L-shaped plate, and a reset component is provided in the setting space. The reset component includes two connecting plates and multiple reset springs fixed between the connecting plates. A secondary connecting plate is provided in the setting space, and the connecting plates are respectively fixed to the bottom end of the setting space and the secondary connecting plate by screws.

[0012] Furthermore, the top of the secondary connecting plate is fixed with multiple through rods that protrude from the L-shaped plate. The top of the through rods is fixed with a contact plate. The top of the L-shaped plate is provided with an arrangement groove, in which a start switch is embedded. The top of the start switch protrudes out of the arrangement groove. The bottom surface of the contact plate is provided with a contact area corresponding to the start switch, and a soft rubber pad is pasted on the contact area.

[0013] Furthermore, a battery for power supply is installed in the space, and a closing door is installed on the L-shaped plate by metal hinges. The closing door is fixed with screws, and a solar panel is installed on the outer surface of the L-shaped plate.

[0014] The beneficial effects of this invention are: By connecting the main hook module to one end of the offshore wind turbine monopile and the auxiliary hook module to the offshore wind turbine monopile, along with the balance beam and connecting beam structure, the method of hanging the wire rope has been changed, thus completely avoiding the use of wide-edge shackles, which has significantly reduced the overall cost and manufacturing cycle of the lifting equipment.

[0015] The adjustable components allow for spacing adjustments between two adjustable plates, enabling them to better align with offshore wind turbine monopiles of different sizes. The two adjustable plates are positioned to correspond to the two sides of one end of the monopile. Combined with the connecting components, the adjustable plates can indirectly connect to the offshore wind turbine monopile. This ensures that during hoisting, there is no need to change to other hoisting equipment; simply adjusting the distance between the two adjustable plates allows for the flipping and hoisting of monopiles of different sizes, significantly saving time and improving work efficiency.

[0016] The lifting of the offshore wind turbine monopile is completed by connecting the monopile. When lifting the offshore wind turbine monopile, the auxiliary hook module and the main hook module are raised to a suitable height at the same time. Then, the main hook module is kept stationary. After that, the position of the auxiliary hook module is continuously adjusted to change the entire offshore wind turbine monopile from a horizontal state to a vertical state.

[0017] During the process of adjusting the entire offshore wind turbine monopile from a horizontal to a vertical position, the L-shaped plate rotates accordingly, eventually causing the wire rope to contact and be squeezed against the alarm component. After the individual adjusts it to a vertical position, an alarm is triggered in time to remind the staff to stop the work of turning the offshore wind turbine monopile. This equipment improves the accuracy of the adjustment of the offshore wind turbine monopile, avoids over-adjustment, and avoids affecting the final desired adjustment structure. In addition, the hooks are designed to effectively accommodate offshore wind turbine monopoles of different sizes, facilitating subsequent connection and hoisting work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a marine wind turbine monopile turning and lifting device according to the present invention; Figure 2 This is a schematic diagram of the main hook module structure of a marine wind turbine monopile turning and lifting device according to the present invention; Figure 3 This is a schematic diagram of the fixing plate structure of a lifting device for turning over a single pile in offshore wind power according to the present invention; Figure 4This is a schematic diagram of the threaded hole distribution of a lifting tool for turning over a single pile in offshore wind power according to the present invention; Figure 5 This is a schematic diagram of the limiting slider structure of a lifting device for turning over a single pile in offshore wind power according to the present invention; Figure 6 This is a schematic diagram of a contact alarm component for a marine wind turbine monopile turning and lifting device according to the present invention; Figure 7 This is a schematic diagram of the matching of the start switch and rubber pad layer of a lifting device for turning over a single pile in an offshore wind power plant according to the present invention; Figure 8 This is a schematic diagram of the L-shaped plate of a single-pile turning and lifting device for offshore wind power according to the present invention.

[0020] In the diagram, 1. Offshore wind turbine monopile; 2. Main hook module; 3. Auxiliary hook module; 4. Lifting rod; 5. Lifting plate; 6. Balance beam; 7. Lifting ring; 8. Wire rope; 9. Adjusting plate; 10. Extension plate; 11. Auxiliary hook; 12. Auxiliary lifting plate; 13. Connecting beam; 14. Auxiliary lifting ring; 15. Auxiliary wire rope; 16. Hook; 17. L-shaped plate; 18. Alarm; 19. Loudspeaker cover; 20. Dual-axis lead screw; 21. Threaded seat; 22. Manual turntable; 23. Fixing plate; 24. Threaded hole; 25. Connecting block; 26. Bolt groove; 27. Matching through groove; 28. Limiting slider; 29. ​​Vertical limiting groove; 30. Setting space; 31. Reset assembly; 32. Connecting plate; 33. Arc plate; 34. Reset spring; 35. Secondary connecting plate; 36. Through rod; 37. Contact plate; 38. Arrangement groove; 39. Start switch; 40. Rubber pad; 41. Closing door; 42. Solar panel. Detailed Implementation

[0021] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-8This invention provides a lifting device for turning over a single pile in an offshore wind turbine, including a main hook module 2 located on one side of the single pile 1 and a secondary hook module 3 located on the other side of the single pile 1. The main hook module 2 includes a boom 4, with perforated lifting plates 5 fixed on both sides of the bottom end of the boom 4. A balance beam 6 is located below the lifting plates 5, and multiple lifting rings 7 are fixed at the top of the balance beam 6. Steel wire ropes 8 are threaded through the perforations and lifting rings 7 of the lifting plates 5. The balance beam 6 has a hollow structure and an adjustment assembly is provided inside the balance beam 6. Two adjustment plates 9 are fixed on the adjustment assembly for adjustment. Extension plates 10 are fixedly installed on each plate 9. A connecting component for connecting the marine wind turbine monopile 1 is fixedly installed on the extension plate 10. The auxiliary hook module 3 has a hook 16, which hooks one end of the marine wind turbine monopile 1. An L-shaped plate 17 is fixedly installed on one end of the balance beam 6. A contact alarm component is installed on the L-shaped plate 17. The contact alarm component corresponds to the wire rope 8. An alarm 18 is installed on the contact alarm component. The alarm 18 is arranged on the L-shaped plate 17. A loudspeaker cover 19 is also installed on the L-shaped plate 17 to cover the alarm 18. The top of the loudspeaker cover 19 is open.

[0023] See Figure 1 The auxiliary hook module 3 includes an auxiliary hook 11. Auxiliary lifting plates 12 with auxiliary perforations are fixed on both sides of the bottom end of the auxiliary hook 11. A connecting beam 13 is provided below the auxiliary lifting plates 12. Multiple auxiliary lifting rings 14 are fixed to the top of the connecting beam 13. Auxiliary steel wire ropes 15 are threaded through the auxiliary lifting plates 12 and the auxiliary lifting rings 14. The connecting beam 13 and the hook 16 are integrally formed, creating a C-shaped hook. The C-shaped hook is suspended from the auxiliary hook 11 by the auxiliary steel wire ropes 15, connecting to the other end of the offshore wind turbine monopile. This end features a simple connection designed to allow for continuous adjustments to the auxiliary hook module 3. By adjusting the position of the auxiliary hook module 3, the entire offshore wind turbine monopile can be changed from a horizontal to a vertical position, rotating 90 degrees. At this point, the auxiliary hook module 3 is positioned above the main hook module 2. The auxiliary hook module 3 will eventually need to be disassembled, resulting in separation from the vertical offshore wind turbine monopile. Therefore, a simple hook connection method is specifically designed for the connection between the main hook module 2 and the offshore wind turbine monopile.

[0024] See Figure 1-5The adjustment assembly includes a dual-axis lead screw 20 rotatably arranged inside the balance beam 6. A threaded seat 21 located inside the balance beam 6 is fixedly mounted on the top of the adjustment plate 9. The threaded seat 21 is threaded onto both ends of the dual-axis lead screw 20. A manual turntable 22 located outside the balance beam 6 is fixedly mounted on one end of the dual-axis lead screw 20. The other end of the dual-axis lead screw 20 extends outside the balance beam 6 and is connected to a bearing fixed to the outer wall of the balance beam 6. The connection assembly includes a fixing plate 23 fixed to the extension plate 10. An arc-shaped plate 33 is fixed on the fixing plate 23, penetrating inside the offshore wind turbine monopile 1. The offshore wind turbine monopile 1 faces the fixing plate 23. The end has a threaded hole 24. The fixing plate 23 has a mating part that mates with the threaded hole 24. The mating part and the threaded hole 24 are fitted with bolts. The mating part includes multiple mating blocks 25 that are slidably disposed on the outer surface of the fixing plate 23. The mating blocks 25 have transverse bolt grooves 26. The fixing plate 23 has matching through grooves 27. The bolts spirally enter the threaded hole 24 through the bolt grooves 26 and matching through grooves 27. A limiting slider 28 is fixedly provided at the end of the mating block 25 facing the fixing plate 23. Each mating block 25 has two limiting sliders 28. The fixing plate 23 has a... The vertical limiting groove 29 has a limiting slider 28 slidably positioned within it. Specifically, manually rotating the manual turntable causes the dual-axis lead screw 20 to rotate, which in turn drives the two adjusting plates 9 to move relative to each other. Ultimately, this causes the arc-shaped plate 33 connected to the fixed plate 23 to better align with the opposite side of the inner wall of the offshore wind turbine monopile 1. The arc-shaped plate 33 is designed to fit snugly against the offshore wind turbine monopile 1, and its contact surface matches the inner surface of the offshore wind turbine monopile 1, ensuring further stability of the connection. At this point, the fixed plate 23 fits against the end face of the offshore wind turbine monopile and is matched with the... The slot 27 better displays the threaded hole 24. The matching through slot 27 does not obstruct the threaded hole 24. The mating block 25 can be moved up and down so that the bolt groove 26 of the mating block 25 is aligned with the threaded hole 24. With the screw inserted, the fixing plate 23 and the end face of the offshore wind turbine monopile can be connected. The design of the matching through slot and bolt groove 26 allows the screw to be better aligned with the threaded hole 24, and allows the lifting tool to be better matched with offshore wind turbine monopoles of different sizes. By adjusting the spacing, it is possible to flip and lift monopile bodies of different sizes, thereby greatly saving time and improving work efficiency.

[0025] See Figure 1 and Figures 6-8The contact alarm component includes a mounting space 30 on an L-shaped plate 17. A reset component 31 is located within the mounting space 30. The reset component 31 includes two connecting plates 32 and multiple reset springs 34 fixed between the connecting plates 32. A secondary connecting plate 35 is located within the mounting space 30. The connecting plates 32 are respectively fixed to the bottom end of the mounting space 30 and the secondary connecting plate 35 by screws. Multiple through rods 36 extending out of the L-shaped plate 17 are fixed to the top of the secondary connecting plate 35. A contact plate 37 is fixed to the top of the through rods 36. An arrangement slot 38 is located at the top of the L-shaped plate 17. An embedded start switch 39 is installed in the mounting slot 38. The top of the start switch 39 protrudes outside the mounting slot 38. The bottom surface of the contact plate 37 has a corresponding contact area for the start switch 39. A soft rubber pad 40 is attached to the contact area. A battery for power supply is installed in the mounting space 30. A closing door 41 is also installed on the L-shaped plate 17 via metal hinges. The closing door 41 is fixed with screws. A solar panel 42 is also installed on the outer side of the L-shaped plate 17. When lifting the offshore wind turbine monopile, the auxiliary hook module 3 and the main hook module 2 are simultaneously lifted to a suitable height, and then the main hook module is held in place. With hook module 2 stationary, the position of auxiliary hook module 3 is continuously adjusted to change the entire offshore wind turbine monopile from a horizontal to a vertical position, rotating it 90 degrees. This rotation causes the L-shaped plate 17 to rotate synchronously, bringing the contact plate 37 on the L-shaped plate 17 into contact with the wire rope. The taut wire rope compresses the contact plate 37, causing it to compress the through rod 36, auxiliary connecting plate 35, and upper connecting plate 32. This compresses the return spring 34, ultimately causing the rubber pad 40 of the contact plate 37 to contact the start switch 39, thus activating the alarm. An alarm is triggered to remind staff to stop turning over the offshore wind turbine monopile, avoiding the need for personnel to visually determine whether it has been turned upright, thus improving the subsequent turning and docking work of the offshore wind turbine monopile. The battery is rechargeable, supplying power to the start switch 39 and the alarm, and the solar panel 42 can also charge the battery. The reset component 31 is detachable and can be replaced periodically. The closing door 41 can be flipped open with the help of metal hinges. After the closing door 41 is closed, it is fixed with screws to set the interior of the setting space 30 as a sealed space.

[0026] In use, the main hook module 2 connects to one end of the offshore wind turbine monopile, and the auxiliary hook module 3 connects to the offshore wind turbine monopile. The balance beam and connecting beam 13 structure, by changing the way the wire rope is attached, completely avoids the use of wide-edge shackles, significantly reducing the overall cost and manufacturing cycle of the lifting equipment. The adjustment components can drive the two adjustment plates 9 to adjust their spacing, allowing them to better face offshore wind turbine monopoles 1 of different sizes. The two adjustment plates 9 correspond to the two sides of one end of the offshore wind turbine monopile 1. Combined with the connecting components, the adjustment plates 9 can indirectly connect to the offshore wind turbine monopile 1. This ensures that during hoisting, there is no need to change to another lifting equipment; only the spacing between the two adjustment plates 9 needs to be adjusted to achieve the flipping and hoisting of monopile bodies of different sizes, greatly saving time and improving work efficiency. The hoisting of the offshore wind turbine monopile 1 is completed through the connection. When lifting a single offshore wind turbine pile, the auxiliary hook module 3 and the main hook module 2 are simultaneously raised to a suitable height. Then, the main hook module 2 is kept stationary. The position of the auxiliary hook module 3 is continuously adjusted to change the entire offshore wind turbine pile from a horizontal to a vertical position, rotating it 90 degrees. During this process, the L-shaped plate 17 rotates, eventually causing the wire rope 8 to contact and press against the alarm component. After the pile is adjusted to a vertical position, an alarm is triggered to remind workers to stop further lifting. This equipment improves the accuracy of the lifting and adjustment of the offshore wind turbine pile, avoiding over-adjustment that could affect the desired structure. The hooks are also designed to effectively accommodate offshore wind turbine piles of different sizes, facilitating subsequent connection and lifting operations. Specifically, the start switch 39 and the alarm are existing production processes and are publicly available; therefore, detailed explanations are not provided here.

[0027] The C-hook is suspended from the auxiliary hook 11 via the auxiliary wire rope 15, connecting to the other end of the offshore wind turbine monopile. This connection is simple, designed to allow for subsequent adjustments to the auxiliary hook module 3. Adjusting the position of the auxiliary hook module 3 allows the entire offshore wind turbine monopile to be changed from a horizontal to a vertical position, rotating it 90 degrees. At this point, the auxiliary hook module 3 is positioned above the main hook module 2. The auxiliary hook module 3 will eventually need to be disassembled, separating from the vertical offshore wind turbine monopile. Therefore, a simple hook connection is specifically designed for the connection between the main hook module 2 and the offshore wind turbine monopile. Specifically, the manual turntable is manually rotated, causing the dual-axis lead screw 20 to rotate. During this rotation, the two adjusting plates 9 move relative to each other. The arc-shaped plate 33, connected to the fixing plate 23, can better align with the opposite side of the inner wall of the offshore wind turbine monopile 1. The design of the arc-shaped plate 33 ensures a close fit with the offshore wind turbine monopile 1, and the contact surface of the arc-shaped plate 33 matches the inner surface of the offshore wind turbine monopile 1, guaranteeing further stability of the connection. At this point, the fixing plate 23 is in contact with the end face of the offshore wind turbine monopile, and the matching through groove 27 better displays the threaded hole 24. The matching through groove 27 does not obstruct the threaded hole 24, allowing the mating block 25 to move up and down, aligning its bolt groove 26 with the threaded hole 24. With the bolt inserted, the fixing plate 23 and the end face of the offshore wind turbine monopile are connected. The design of the matching through groove and bolt groove 26... This allows the screw to be better aligned with the threaded hole 24, and the lifting equipment to better match different sizes of offshore wind turbine monopiles. By adjusting the spacing, monopiles of different sizes can be flipped and lifted, greatly saving time and improving work efficiency. When lifting an offshore wind turbine monopile, the auxiliary hook module 3 and the main hook module 2 are simultaneously raised to a suitable height. Then, the main hook module 2 is kept stationary. The position of the auxiliary hook module 3 is then continuously adjusted to change the entire offshore wind turbine monopile from a horizontal to a vertical position, flipping it 90 degrees. This flipping action causes the L-shaped plate 17 to flip synchronously, so that the contact plate 37 on the L-shaped plate 17 contacts the wire rope. The taut wire rope squeezes the contact plate 37, causing it to be compressed. The compression of the through rod 36, the auxiliary connecting plate 35, and the upper connecting plate 32 causes the return spring 34 to compress, ultimately causing the rubber pad 40 of the contact plate 37 to contact the start switch 39, thereby activating the alarm and alerting staff to stop the work of turning over the offshore wind turbine monopile. This avoids the need for personnel to visually determine whether the pile has been turned upright, improving the subsequent turning and docking work of the offshore wind turbine monopile. The battery is rechargeable, supplying power to the start switch 39 and the alarm, and the solar panel 42 can also charge the battery. The reset assembly 31 is detachable and can be replaced periodically. The closing door 41 can be opened by flipping with metal hinges, and after closing, it is secured with screws.The setting space 30 can be set as a sealed space. The setting space 30 also contains a controller and a timer. The controller controls the timing of the timer, thereby controlling the duration of the alarm sound after the switch is activated, preventing prolonged alarm operation. The controller and timer are also existing publicly available devices and will not be described in detail again.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting device for turning over a single pile in offshore wind power, characterized in that, It includes a main hook module (2) located on one side of the offshore wind turbine monopile (1), and an auxiliary hook module (3) located on the other side of the offshore wind turbine monopile (1). The main hook module (2) includes a boom (4), with perforated lifting plates (5) fixed on both sides of the bottom end of the boom (4), a balance beam (6) is provided below the lifting plate (5), and multiple lifting rings (7) are fixed at the top of the balance beam (6). A steel wire rope (8) is threaded through the perforation and between the lifting rings (7) of the lifting plate (5). The balance beam (6) has a hollow structure, and an adjustment component is provided inside the balance beam (6). Two adjustment plates (9) are fixed on the adjustment component, and extension plates (10) are fixed on each of the adjustment plates (9). A connection component for connecting the marine wind turbine monopile (1) is fixed on the extension plate (10). The auxiliary hook module (3) has a hook (16) that hooks one end of the offshore wind power monopile (1). One end of the balance beam (6) is fixed with an L-shaped plate (17). The L-shaped plate (17) is equipped with a contact alarm component, which corresponds to the wire rope (8). The contact alarm component is equipped with an alarm (18), which is arranged on the L-shaped plate (17). The L-shaped plate (17) is also equipped with a loudspeaker cover (19) that covers the alarm (18). The top of the loudspeaker cover (19) is open.

2. A lifting device for turning over a single pile in offshore wind power according to claim 1, characterized in that, The auxiliary hook module (3) includes an auxiliary hook (11). The auxiliary hook (11) has auxiliary lifting plates (12) with auxiliary through holes fixed on both sides of its bottom end. A connecting beam (13) is provided below the auxiliary lifting plate (12). Multiple auxiliary lifting rings (14) are fixed at the top of the connecting beam (13). An auxiliary steel wire rope (15) is threaded through the auxiliary through hole and the auxiliary lifting ring (14) of the auxiliary lifting plate (12). The connecting beam (13) and the hook (16) are integrally formed and form a C-shaped hook.

3. A lifting device for turning over a single pile in offshore wind power according to claim 2, characterized in that, The adjustment assembly includes a double-axis lead screw (20) rotatably arranged inside the balance beam (6), and a threaded seat (21) located inside the balance beam (6) is fixedly provided at the top of the adjustment plate (9). The threaded seat (21) is threaded onto both ends of the double-axis lead screw (20).

4. A lifting device for turning over a single pile in offshore wind power according to claim 3, characterized in that, One end of the dual-axis lead screw (20) is fixedly provided with a manual turntable (22) located outside the balance beam (6), and the other end of the dual-axis lead screw (20) extends out of the balance beam (6) and is connected to a bearing fixed on the outer wall of the balance beam (6).

5. A lifting device for turning over a single pile in offshore wind power according to claim 4, characterized in that, The connecting assembly includes a fixing plate (23) fixed on the extension plate (10), an arc plate (33) fixed on the fixing plate (23) and inserted into the interior of the offshore wind turbine monopile (1), a threaded hole (24) is opened at the end of the offshore wind turbine monopile (1) facing the fixing plate (23), a mating part is provided on the fixing plate (23) to mate with the threaded hole (24), and a bolt is fitted on the mating part and in the threaded hole (24).

6. A lifting device for turning over a single pile in offshore wind power according to claim 5, characterized in that, The mating parts include multiple mating blocks (25) that are slidably disposed on the outer surface of the fixed plate (23). The mating blocks (25) are provided with transverse bolt grooves (26), and the fixed plate (23) is provided with matching through grooves (27). The bolts are spirally inserted into the threaded holes (24) through the bolt grooves (26) and matching through grooves (27).

7. A lifting device for turning over a single pile in offshore wind power according to claim 6, characterized in that, A limiting slider (28) is fixedly provided at one end of the docking block (25) facing the fixing plate (23). There are two limiting sliders (28) on each docking block (25). A vertical limiting groove (29) is provided at one end of the fixing plate (23) facing the docking block (25). The limiting slider (28) is slidably disposed in the vertical limiting groove (29).

8. A lifting device for turning over a single pile in offshore wind power according to claim 7, characterized in that, The contact alarm component includes a setting space (30) on an L-shaped plate (17). A reset component (31) is provided in the setting space (30). The reset component (31) includes two connecting plates (32) and multiple reset springs (34) fixed between the connecting plates (32). A secondary connecting plate (35) is provided in the setting space (30). The connecting plates (32) are fixed to the bottom of the setting space (30) and the secondary connecting plate (35) respectively by screws.

9. A lifting device for turning over a single pile in offshore wind power according to claim 8, characterized in that, The top of the secondary connecting plate (35) is fixed with multiple through rods (36) that pass through the L-shaped plate (17). The top of the through rods (36) is fixed with a contact plate (37). The top of the L-shaped plate (17) is provided with an arrangement groove (38). The start switch (39) is embedded in the arrangement groove (38). The top of the start switch (39) protrudes outside the arrangement groove (38). The bottom surface of the contact plate (37) is provided with a contact area corresponding to the start switch (39). A soft rubber pad layer (40) is pasted on the contact area.

10. A lifting device for turning over a single pile in offshore wind power according to claim 9, characterized in that, The space (30) is equipped with a battery for power supply. A closing door (41) is also installed on the L-shaped plate (17) by means of a metal hinge. The closing door (41) is fixed with screws. A solar panel (42) is also installed on the outer side of the L-shaped plate (17).

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