A self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the same

Abstract

The present invention relates to the field of offshore wind power technology, and specifically discloses a self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the same, wherein the self-elevating platform comprises: a mother seat and a workbench installed above the mother seat for standing use; and further comprises: a first chassis, wherein the first chassis is integrally welded and fixed to the bottom of the mother seat, and the second chassis and the third chassis are sequentially connected to the bottom of the first chassis, and the first chassis, the second chassis and the third chassis are combined to form a curved cone-shaped structure, and an air bag is installed on the outside of the first chassis; a deflection groove, wherein the outer side surface of the mother seat is equidistantly recessed and provided with deflection grooves; and a lifting and adjusting seat, wherein the lifting and adjusting seat is telescopically connected to the top of the mother seat. The self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the same can stably maintain balance, facilitate lifting and adjusting, maintain the level of the platform, and facilitate equipment maintenance.

Description

Technical Field

[0001] The present invention relates to the field of offshore wind power technology, and more particularly to the field of offshore wind power equipment maintenance platform technology, and specifically to a self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the platform. Background Art

[0002] As the economically exploitable wind resources on land are becoming less and less, the global wind farm construction has shown a trend of developing from land to offshore. Compared with land wind power, offshore wind power has high energy efficiency. Offshore wind power has the characteristics of abundant resources, high power generation utilization hours, no land occupation and suitability for large-scale development. It is the latest frontier of global wind power development.

[0003] The construction of offshore wind power requires the construction of equipment platforms, and then the construction and use of wind power equipment. During the offshore power generation process, due to the offshore environment and cost issues, it is not possible to build a maintenance platform on each equipment platform for equipment maintenance. Therefore, a mobile equipment maintenance platform is needed for equipment maintenance.

[0004] However, the existing offshore equipment maintenance platform still has certain drawbacks when used in actual work, such as:

[0005] 1. Most of the existing offshore equipment maintenance platforms adopt the hull design and are used for repairing large wind power equipment, which makes it difficult to adapt to local narrow locations;

[0006] 2. At present, for offshore equipment maintenance, small boats can be used for local equipment maintenance. However, in actual use, due to the harsh offshore environment, safety is difficult to guarantee and the height is limited, which affects the maintenance efficiency.

[0007] Therefore, we propose a self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the same, so as to solve the above-mentioned problems. Summary of the invention

[0008] The purpose of the present invention is to provide a self-elevating platform suitable for offshore wind power equipment maintenance and a method of using the same, so as to solve the problems raised in the above background technology that the current offshore wind power equipment maintenance platform is difficult to adapt in all directions, has poor safety and low maintenance efficiency.

[0009] To achieve the above object, the present invention provides the following technical solution: A self-elevating platform suitable for offshore wind power equipment maintenance, comprising: a mother seat and a workbench installed above the mother seat for standing use;

[0010] Also includes:

[0011] A first chassis, wherein the first chassis is integrally welded and fixed to the bottom of the mother seat, and the second chassis and the third chassis are sequentially connected below the first chassis, and the first chassis, the second chassis and the third chassis are combined to form a curved egg-shaped structure, and an airbag is installed on the outer side of the first chassis;

[0012] The outer side surface of the mother seat is provided with deflection grooves which are recessed at equal intervals and are arranged in a spiral shape on the outer side surface of the mother seat;

[0013] A lifting adjustment seat, wherein the lifting adjustment seat is telescopically connected to the top of the mother seat, and the top of the lifting adjustment seat is rotatably connected to the direction adjustment seat;

[0014] The workbench is rotatably connected to the top surface of the direction adjustment seat, and the bottom surface of the workbench is tightly fitted with the top surface of the direction adjustment seat. A guard frame is fixedly installed on the top side of the workbench, and a blocking rod is telescopically connected to the notch of the guard frame.

[0015] Preferably, the top surface of the first base frame is welded to the bottom surface of the mother seat, and a water inlet hole located at the top of the first base frame is opened between the top surface of the first base frame and the mother seat, and the water inlet hole passes through the inner and outer sides of the first base frame.

[0016] Preferably, a support frame is fixedly installed on the inner top of the first base frame, and a winding motor is installed on the top of the support frame, and a winding shaft is installed on the output end of the winding motor, and a cable is wound and connected to the outer side of the winding shaft;

[0017] The inner tops of the first base frame and the second base frame are both provided with fixing frames, and a through hole is opened in the middle of the fixing frames. The bottom end of the cable passes through the through hole and is connected to the inner side of the second base frame. The bottom end of the cable is fixed with a limiting block.

[0018] Preferably, the top outer side surfaces of the first base frame and the second base frame are both installed with N-type magnetic poles and S-type magnetic poles, and the bottom inner side surfaces of the mother seat and the first base frame are also installed with N-type magnetic poles and S-type magnetic poles, and the N-type magnetic poles and S-type magnetic poles are arranged at intervals, and the mother seat and the first base frame, as well as the first base frame and the second base frame are magnetically adsorbed and connected to each other through the N-type magnetic poles and the S-type magnetic poles.

[0019] Preferably, a connecting frame is fixedly installed on the inner side surface of the lifting and adjusting seat, and an adjusting rod is threadedly connected to the bottom of the connecting frame, a first gear is fixed to the bottom of the adjusting rod, and the bottom end of the adjusting rod is rotatably connected to the inner bottom end surface of the mother seat, a connecting disk is connected to the inner side of the first gear, and the first gear is arranged at an equal angle on the outer side of the connecting disk, and a second gear is connected to the outer side of the connecting disk.

[0020] Preferably, the top edge of the direction adjustment seat is arranged with a lateral curling edge, and the direction adjustment seat is sealingly rotatably connected with the lifting adjustment seat through a sealing gasket, and a rotating motor is arranged at the bottom of the direction adjustment seat, and the rotating motor is fixedly mounted on the inner bottom of the lifting adjustment seat through a mounting frame.

[0021] Preferably, the middle position of the bottom of the workbench is arranged as a horizontal internal recess, and the recess is evenly spaced with adjustment teeth. The workbench is connected to a third gear through the engagement of the adjustment teeth. The third gear is installed on one side of the bottom of the direction adjustment seat, and the top of the third gear protrudes above the empty slot opened on the top surface of the direction adjustment seat.

[0022] Preferably, the bottom sides of the workbench are symmetrically installed with limit rods, and the limit rods are correspondingly engaged with the slide grooves provided at the inner bottom of the direction adjustment seat, and the connection between the limit rods and the workbench is a threaded connection.

[0023] Another technical solution provided by the present invention is to provide a method for using a self-elevating platform suitable for repairing offshore wind power equipment, the method comprising the following steps:

[0024] Step 1: Assemble the equipment platform and launch it into the water when in use. Start the winding motor inside the first chassis to unwind the cable using the winding shaft. The second chassis and the third chassis fall down under their own gravity. The mother seat, the first chassis and the second chassis are connected by the N-type magnetic poles and the S-type magnetic poles respectively arranged inside and outside the second chassis, thereby increasing the downward extension of the entire device and ensuring the stable use of the device on the sea surface. By inflating the airbag, the device can be assisted to float.

[0025] Step 2: After moving to the working position, the internal motor of the mother seat is started to drive the second gear to rotate, so that the first gear drives the connecting plate to rotate, and the meshing connection between the connecting plate and the first gear is used to drive the adjusting rod to rotate, and the height of the lifting and adjusting seat is adjusted through the threaded connection between the adjusting rod and the connecting frame, thereby adjusting the height of the workbench;

[0026] Step three: By driving the third gear, the meshing between the third gear and the adjusting tooth can be utilized to adjust the inclination angle of the workbench, thereby adapting to the impact of waves and ensuring the levelness of the workbench. At the same time, the direction adjustment seat and the workbench function are rotated by the rotating motor, thereby realizing three-dimensional adjustment of the workbench, which is convenient for personnel to carry out maintenance work stably.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects: the self-elevating platform suitable for offshore wind power equipment maintenance and the use method thereof can stably maintain balance for use, facilitate lifting and lowering adjustment, facilitate maintaining the platform level, and facilitate equipment maintenance and use;

[0028] 1. In this solution, a first base frame, a second base frame and a third base frame are provided. The second base frame and the third base frame can be lowered or stored, so as to extend to a deeper depth in the water after being lowered, so as to enhance stability and avoid overturning. At the same time, the second base frame and the third base frame are easy to store and reduce space occupation. In addition, the first base frame, the second base frame and the third base frame adopt magnetic adsorption, which can stably maintain the structure and ensure structural stability.

[0029] 2. In this scheme, a bias flow groove is provided, which is arranged in a spiral shape at equal intervals outside the mother seat, and can unload the force when the waves hit, ensuring the stability of the platform;

[0030] 3. This solution is provided with a lifting adjustment seat, an adjustment rod, a first gear and a second gear. The rotation of the second gear facilitates the driving of the connecting plate to drive the first gear and the adjustment rod to rotate. The angle setting of the adjustment rod and the connecting frame facilitates the simultaneous lifting of multiple corners, thereby avoiding jamming and ensuring uniform force on the structure. While maintaining stable lifting and lowering adjustment, it also ensures service life.

[0031] 4. This solution is provided with a direction adjustment seat, a workbench, an adjustment tooth, a third gear and a rotating motor. By starting the rotating motor, the direction adjustment seat and the workbench can be driven to rotate and adjust. The third gear can drive the adjustment tooth to drive the workbench to rotate and adjust, thereby facilitating multi-dimensional adjustment of the workbench, ensuring that the workbench is maintained level, and thereby maintaining a stable and reliable working plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the overall exploded structure of the first base frame, the second base frame and the third base frame of the present invention;

[0036] Figure 4 It is a schematic diagram of the overall cross-section structure of the first base frame, the second base frame and the third base frame of the present invention;

[0037] Figure 5 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0038] Figure 6 For the present invention Figure 3The enlarged structural diagram at B in the middle;

[0039] Figure 7 This is a schematic diagram of the overall exploded front structure of the female seat, the lifting adjustment seat, the direction adjustment seat and the workbench of the present invention;

[0040] Figure 8 This is a schematic diagram of the overall exploded back structure of the female seat, the lifting adjustment seat, the direction adjustment seat and the workbench of the present invention;

[0041] Fig. 9 This is a schematic diagram of the overall dissected structure of the female seat, the lifting adjustment seat, the direction adjustment seat and the workbench of the present invention;

[0042] Fig.10 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0043] In the figure: 1. mother seat; 2. first base frame; 3. second base frame; 4. third base frame; 5. airbag; 6. water inlet hole; 7. support frame; 8. winding motor; 9. winding shaft; 10. cable; 11. fixing frame; 12. through hole; 13. limit block; 14. N-type magnetic pole; 15. S-type magnetic pole; 16. bias flow groove; 17. lifting adjustment seat; 18. connecting frame; 19. adjustment rod; 20. first gear; 21. connecting plate; 22. second gear; 23. direction adjustment seat; 24. sealing gasket; 25. rotating motor; 26. mounting frame; 27. workbench; 28. adjustment tooth; 29. ​​empty slot; 30. third gear; 31. limit rod; 32. slide groove; 33. guard frame; 34. stop rod. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0045] See also Figure 1-10 The present invention provides a technical solution: a self-elevating platform suitable for offshore wind power equipment maintenance, comprising: a mother seat 1, a first base frame 2, a second base frame 3, a third base frame 4, an airbag 5, a water inlet hole 6, a support frame 7, a winding motor 8, a winding shaft 9, a cable 10, a fixing frame 11, a through hole 12, a limit block 13, an N-type magnetic pole 14, an S-type magnetic pole 15, a bias flow groove 16, a lifting adjustment seat 17, a connecting frame 18, an adjustment rod 19, a first gear 20, a connecting plate 21, a second gear 22, a direction adjustment seat 23, a sealing pad 24, a rotating motor 25, a mounting frame 26, a working table 27, an adjustment tooth 28, an empty slot 29, a third gear 30, a limit rod 31, a slide slot 32, a guard frame 33, and a stop rod 34;

[0046] The first chassis 2 is integrally welded and fixed to the bottom of the mother seat 1, and the second chassis 3 and the third chassis 4 are sequentially connected to the bottom of the first chassis 2, and the first chassis 2, the second chassis 3 and the third chassis 4 are combined to form a curved cone-shaped structure, and an airbag 5 is installed on the outside of the first chassis 2;

[0047] The top surface of the first base frame 2 is welded to the bottom surface of the mother seat 1, and a water inlet hole 6 is provided between the top surface of the first base frame 2 and the mother seat 1, and the water inlet hole 6 passes through the inner and outer sides of the first base frame 2. A support frame 7 is fixedly installed on the inner top of the first base frame 2, and a winding motor 8 is installed on the top of the support frame 7, and a winding shaft 9 is installed at the output end of the winding motor 8, and a cable 10 is wound and connected to the outer side of the winding shaft 9;

[0048] A fixing frame 11 is provided at the inner top of the first base frame 2 and the second base frame 3, and a through hole 12 is opened in the middle of the fixing frame 11. The bottom end of the cable 10 passes through the through hole 12 and is connected to the inner side of the second base frame 3. A limiting block 13 is fixed at the bottom end of the cable 10. N-type magnetic poles 14 and S-type magnetic poles 15 are installed on the outer side surfaces of the tops of the first base frame 2 and the second base frame 3. N-type magnetic poles 14 and S-type magnetic poles 15 are also installed on the inner side surfaces of the bottoms of the female seat 1 and the first base frame 2. The N-type magnetic poles 14 and S-type magnetic poles 15 are arranged at intervals. The female seat 1 and the first base frame 2, as well as the first base frame 2 and the second base frame 3 are magnetically adsorbed and connected to each other through the N-type magnetic poles 14 and S-type magnetic poles 15.

[0049] In a specific application scenario, in the storage state, the winding motor 8 drives the winding shaft 9 to store the cable 10. When the cable 10 is stored, the bottom end rises, and the cable 10 first pulls the third base frame 4 up through the limit block 13. When the third base frame 4 is stored into the second base frame 3, the second base frame 3 is pulled up at the same time to store the second base frame 3 and the third base frame 4 into the first base frame 2. When in use, the cable 10 is unwound by the winding shaft 9. During the unwinding process, the second base frame 3 and the third base frame 4 will descend by their own gravity. At the same time, the outer diameter of the top end of the second base frame 3 is smaller than the inner diameter of the bottom end of the mother seat 1, so that the second base frame 3 will not separate from the first base frame 2, and the outer side surface of the top end of the second base frame 3 is spaced apart with N-type magnetic poles 14 and S-type magnetic poles 15, and the bottom of the first base frame 2 N-type magnetic poles 14 and S-type magnetic poles 15 are also arranged at intervals on the inner side surface of the end. Through the corresponding adsorption between the N-type magnetic poles 14 and the S-type magnetic poles 15, the first base frame 2 and the second base frame 3 are correspondingly adsorbed, while ensuring the structural stable connection of the second base frame 3, the rotation between the second base frame 3 and the first base frame 2 can be avoided, thereby enhancing stability. Similarly, below the third base frame 4, the second base frame 3 and the third base frame 4 can be connected to increase the water immersion depth. Through the egg-shaped structure of the first base frame 2, the second base frame 3 and the third base frame 4, the stability of the device is guaranteed to avoid overturning. At the same time, the contact surface between the mother seat 1 and the first base frame 2 is provided with a water inlet hole 6, which can allow seawater to enter to avoid internal hollowness and sinking. At the same time, the inflation of the airbag 5 is convenient for auxiliary floating use.

[0050] The outer side surface of the female seat 1 is recessed with equal intervals and provided with bias flow grooves 16, and the bias flow grooves 16 are arranged in a spiral shape on the outer side surface of the female seat 1;

[0051] In a specific application scenario, the deflection grooves 16 are arranged in a spiral shape at equal intervals outside the mother seat 1, which can unload the force when the waves hit, ensuring that the platform is stable.

[0052] Among them, the lifting and adjusting seat 17 is telescopically connected to the top of the mother seat 1, and a connecting frame 18 is fixedly installed on the inner side of the lifting and adjusting seat 17, and an adjusting rod 19 is threadedly connected to the bottom of the connecting frame 18, and a first gear 20 is fixed to the bottom of the adjusting rod 19, and the bottom end of the adjusting rod 19 is rotatably connected to the inner bottom end surface of the mother seat 1, and a connecting disk 21 is connected to the inner side of the first gear 20, and the first gear 20 is arranged at an equal angle on the outer side of the connecting disk 21, and a second gear 22 is connected to the outer side of the connecting disk 21;

[0053] In a specific application scenario, by rotating the second gear 22 and utilizing the meshing of the second gear 22 and the connecting disk 21, it is convenient to drive the connecting disk 21 to drive the first gear 20 and the adjusting rod 19 to rotate, and by setting the adjusting rod 19 and the connecting frame 18 at equal angles, it is convenient to lift and lower the polygonal corners of the lifting and adjusting seat 17 at the same time, thereby avoiding jamming and ensuring that the structure is uniformly stressed. While maintaining stable lifting and adjustment, the service life is guaranteed. At the same time, a space is set between the outer edge of the lifting and adjusting seat 17 and the outer edge of the mother seat 1, so that waves and marine fish can hit the mother seat 1 instead of the lifting and adjusting seat 17, which is beneficial to maintaining structural stability and extending service life.

[0054] The top of the lifting adjustment seat 17 is rotatably connected to the direction adjustment seat 23, the workbench 27 is rotatably connected to the top surface of the direction adjustment seat 23, and the bottom surface of the workbench 27 is tightly fitted with the top surface of the direction adjustment seat 23. A guard frame 33 is fixedly installed on the top side of the workbench 27, and a blocking rod 34 is telescopically connected to the notch of the guard frame 33.

[0055] The top edge of the direction adjustment seat 23 is set with a lateral curling edge, and the direction adjustment seat 23 is sealed and rotatably connected with the lifting adjustment seat 17 through a sealing gasket 24. A rotating motor 25 is set at the bottom of the direction adjustment seat 23, and the rotating motor 25 is fixedly installed on the inner bottom of the lifting adjustment seat 17 through a mounting frame 26. The middle position of the bottom of the workbench 27 is set as a transverse internal depression, and the depression is evenly spaced. The workbench 27 is meshed with a third gear 30 through the adjustment teeth 28. The third gear 30 is installed on one side of the bottom of the direction adjustment seat 23, and the top of the third gear 30 protrudes above the empty groove 29 opened on the top surface of the direction adjustment seat 23. The bottom side of the workbench 27 is symmetrically installed with a limiting rod 31, and the limiting rod 31 is correspondingly engaged with the sliding groove 32 opened on the inner bottom of the direction adjustment seat 23, and the connection between the limiting rod 31 and the workbench 27 is a threaded connection;

[0056] In a specific application scenario, the direction adjustment seat 23 is sealed and rotatably connected to the top of the lifting adjustment seat 17 through a sealing gasket 24, and the bottom of the direction adjustment seat 23 is connected to a rotating motor 25 fixed on the inner side of the lifting adjustment seat 17. The rotating motor 25 can drive the direction adjustment seat 23 to rotate, thereby driving the workbench 27 to rotate at the same time. The purpose of rotation is to ensure that when the workbench 27 is rotated through the engagement of the third gear 30 and the adjusting tooth 28, the workbench 27 can rotate in different directions, thereby maintaining the top surface of the workbench 27 level for easy maintenance.

[0057] Example:

[0058] When the self-elevating platform suitable for offshore wind power equipment maintenance is used for equipment maintenance, the equipment platform is first assembled and launched into the water for operation. The winding motor 8 is started inside the first base frame 2 to unwind the cable 10 using the winding shaft 9. The second base frame 3 and the third base frame 4 fall under their own gravity. The mother seat 1, the first base frame 2, and the second base frame 3 are connected by the N-type magnetic poles 14 and the S-type magnetic poles 15 respectively arranged inside and outside the mother seat 1, the first base frame 2, and the second base frame 3, thereby increasing the downward extension of the overall device and ensuring the stable use of the device on the sea surface. By inflating the airbag 5, the device can be assisted in floating.

[0059] After installing a driving propeller or other mobile driving device and moving to the working position, the second gear 22 is driven to rotate by starting the internal motor of the mother seat 1, so that the first gear 20 drives the connecting plate 21 to rotate, and the meshing connection between the connecting plate 21 and the first gear 20 is used to drive the adjusting rod 19 to rotate. The height of the lifting and adjusting seat 17 is adjusted through the threaded connection between the adjusting rod 19 and the connecting frame 18, and then the height of the workbench 27 is adjusted for easy maintenance;

[0060] By driving the third gear 30, the meshing between the third gear 30 and the adjusting tooth 28 can be utilized to adjust the inclination angle of the workbench 27, thereby adapting to wave impact and ensuring that the workbench 27 is level. At the same time, the direction adjustment seat 23 and the workbench 27 are functionally rotated by the rotating motor 25, thereby realizing three-dimensional adjustment of the workbench 27, which is convenient for personnel to carry out maintenance work stably.

[0061] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention; the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in the field. In addition, the directional nouns such as up, down, left, right, front and back in the text only represent their relative positions rather than absolute positions.

[0062] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0063] 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.

Claims

1. A self-elevating platform suitable for offshore wind power equipment maintenance, comprising: A female seat (1) and a workbench (27) mounted above the female seat (1) for standing use; It is characterized by further comprising: A first base frame (2), the first base frame (2) is integrally welded and fixed to the bottom of the mother seat (1), and the second base frame (3) and the third base frame (4) are sequentially connected below the first base frame (2), and the first base frame (2), the second base frame (3) and the third base frame (4) are combined to form a curved egg-shaped structure, and an air bag (5) is installed on the outside of the first base frame (2); Deflection grooves (16), wherein the outer side surface of the female seat (1) is recessed at equal intervals and provided with the deflection grooves (16), and the deflection grooves (16) are arranged in a spiral shape on the outer side surface of the female seat (1); A lifting adjustment seat (17), wherein the lifting adjustment seat (17) is telescopically connected to the top of the female seat (1), and the top of the lifting adjustment seat (17) is rotatably connected to a direction adjustment seat (23); The workbench (27) is rotatably connected to the top surface of the direction adjustment seat (23), and the bottom surface of the workbench (27) is tightly fitted with the top surface of the direction adjustment seat (23); a guard frame (33) is fixedly installed on the top side of the workbench (27), and a blocking rod (34) is telescopically connected to the notch of the guard frame (33); A connecting frame (18) is fixedly mounted on the inner side surface of the lifting adjustment seat (17), and an adjusting rod (19) is threadedly connected to the lower side of the connecting frame (18); a first gear (20) is fixed to the bottom of the adjusting rod (19), and the bottom end of the adjusting rod (19) is rotatably connected to the inner bottom end surface of the female seat (1); a connecting plate (21) is connected to the inner side of the first gear (20), and the first gear (20) is arranged at an equal angle on the outer side of the connecting plate (21); and a second gear (22) is connected to the outer side of the connecting plate (21); The middle position of the bottom of the workbench (27) is arranged as a transverse internal depression, and the depression is provided with adjustment teeth (28) at equal intervals. The workbench (27) is meshedly connected to a third gear (30) via the adjustment teeth (28). The third gear (30) is mounted on one side of the bottom of the direction adjustment seat (23), and the top of the third gear (30) protrudes above an empty slot (29) provided on the top surface of the direction adjustment seat (23).

2. A self-elevating platform suitable for offshore wind power equipment maintenance according to claim 1, characterized in that: The top surface of the first base frame (2) is welded to the bottom surface of the mother seat (1), and a water inlet hole (6) located at the top of the first base frame (2) is provided between the top surface of the first base frame (2) and the mother seat (1), and the water inlet hole (6) passes through both inner and outer sides of the first base frame (2).

3. A self-elevating platform suitable for offshore wind power equipment maintenance according to claim 1, characterized in that: A support frame (7) is fixedly mounted on the top of the inner side of the first base frame (2), a winding motor (8) is mounted on the top of the support frame (7), and a winding shaft (9) is mounted on the output end of the winding motor (8), and a cable (10) is wound around the outer side of the winding shaft (9); A fixing frame (11) is provided at the inner top of each of the first base frame (2) and the second base frame (3), and a through hole (12) is provided in the middle of the fixing frame (11); the bottom end of the cable (10) passes through the through hole (12) and is connected to the inner side of the second base frame (3); and a limiting block (13) is fixed to the bottom end of the cable (10).

4. A self-elevating platform suitable for offshore wind power equipment maintenance according to claim 1, characterized in that: The top outer side surfaces of the first base frame (2) and the second base frame (3) are both installed with N-type magnetic poles (14) and S-type magnetic poles (15); the bottom inner side surfaces of the female base (1) and the first base frame (2) are also installed with N-type magnetic poles (14) and S-type magnetic poles (15); the N-type magnetic poles (14) and S-type magnetic poles (15) are arranged at intervals; the female base (1) and the first base frame (2) and the first base frame (2) and the second base frame (3) are magnetically adsorbed and connected to each other through the N-type magnetic poles (14) and the S-type magnetic poles (15).

5. The self-elevating platform suitable for offshore wind power equipment maintenance according to claim 1, characterized in that: The top edge of the direction adjustment seat (23) is arranged with a lateral curling edge, and the direction adjustment seat (23) is rotatably connected to the lifting adjustment seat (17) in a sealed manner via a sealing gasket (24). A rotating motor (25) is arranged at the bottom of the direction adjustment seat (23), and the rotating motor (25) is fixedly mounted on the inner bottom of the lifting adjustment seat (17) via a mounting frame (26).

6. The self-elevating platform suitable for offshore wind power equipment maintenance according to claim 1, characterized in that: The bottom side of the workbench (27) is symmetrically mounted with a limiting rod (31), and the limiting rod (31) is correspondingly engaged with a slide groove (32) provided at the bottom of the inner side of the direction adjustment seat (23), and the limiting rod (31) and the workbench (27) are connected in a threaded manner.

7. A method for using the self-elevating platform suitable for offshore wind power equipment maintenance as claimed in claim 1, characterized in that: The method of use comprises the following steps: Step 1: Assemble the equipment platform and launch it into the water when in use. Start the winding motor (8) inside the first base frame (2) and use the winding shaft (9) to unwind the cable (10). The second base frame (3) and the third base frame (4) fall down under the action of their own gravity. The mother seat (1), the first base frame (2) and the second base frame (3) are connected by the N-type magnetic poles (14) and the S-type magnetic poles (15) respectively arranged inside and outside the mother seat (1), the first base frame (2) and the second base frame (3), thereby increasing the downward extension of the entire device and ensuring the stable use of the device on the sea surface. By inflating the airbag (5), the device can be assisted in floating. Step 2: After moving to the working position, the internal motor of the mother seat (1) is started to drive the second gear (22) to rotate, so that the first gear (20) drives the connecting plate (21) to rotate, and the meshing connection between the connecting plate (21) and the first gear (20) is used to drive the adjusting rod (19) to rotate, and the height of the lifting and lowering adjusting seat (17) is adjusted through the threaded connection between the adjusting rod (19) and the connecting frame (18), thereby adjusting the height of the workbench (27); Step 3: By driving the third gear (30), the meshing between the third gear (30) and the adjusting tooth (28) can be utilized to adjust the inclination angle of the workbench (27), thereby adapting to the impact of waves and ensuring that the workbench (27) is level. At the same time, the direction adjustment seat (23) and the workbench (27) are functionally rotated by the rotating motor (25), thereby realizing three-dimensional adjustment of the workbench (27), so as to facilitate personnel to perform maintenance work stably.

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