Anti-climb device for offshore wind turbine tower

Abstract

The application provides an anti-climbing device for an offshore wind turbine tower, and relates to the technical field of wind turbines. The anti-climbing device for the offshore wind turbine tower comprises a tower body, a fixed sleeve fixedly connected to the outer side of the tower body, a rotating sleeve rotatably connected to the outer side of the tower body, the rotating sleeve being arranged at the bottom of the fixed sleeve, a first ladder arranged on one side of the fixed sleeve, a second ladder arranged on the rotating sleeve, a third ladder arranged on one side of the second ladder, a positioning assembly arranged in each of the two supporting sleeves, and a supporting assembly arranged on the rear side of each of the two second ladders. The anti-climbing device for the offshore wind turbine tower integrates the first ladder, the second ladder and the third ladder, facilitates the climbing of workers, prevents other people from climbing to the top end of the wind turbine and causing damage to the wind turbine, and is beneficial to preventing other irrelevant personnel from climbing at will and improving safety.

Description

Technical Field

[0001] This invention relates to an anti-climbing device, specifically an anti-climbing device for offshore wind turbine towers, belonging to the field of wind turbine technology. Background Technology

[0002] Offshore wind farms do not occupy land on land, reducing the use of valuable onshore land resources and minimizing noise and visual impact on the public. Furthermore, offshore wind speeds are higher and more stable than onshore winds, resulting in greater wind energy resources. Therefore, global renewable energy sources are developing offshore wind energy through large-scale wind power projects. The wind turbine foundation is a crucial component of wind turbine engineering, and high-pile foundations are a common type of offshore wind turbine foundation, used in water depths of 10 meters. It is widely used in areas where the surface soil at a depth of 30m has poor engineering properties.

[0003] Meanwhile, ladders, as the main structure for maintenance personnel to climb the foundations of offshore wind turbines, are an important auxiliary facility for berthing and maintenance of wind turbines, and an indispensable part of the process. They facilitate operators to climb and inspect the wind turbines. However, with the continuous improvement of living standards, more and more people are seeking thrills, and various extreme sports have emerged. Many people climb various signal towers and wind turbine towers as a challenge, especially offshore wind turbine towers, where many people climb to dive and skydive. Wind turbine towers are not professional extreme sports venues, and their indiscriminate use poses a great safety hazard. Furthermore, some operations may damage the wind turbines. Some ladders are only equipped with padlocks, but this does not stop extreme sports enthusiasts from climbing. Therefore, there is a need for a ladder that is convenient for staff to use while preventing others from climbing it at will. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-climbing device for offshore wind turbine towers in order to solve the above-mentioned problems. In the prior art, many people climb various signal towers and wind turbine towers as a challenge, especially offshore wind turbine towers, where many people climb the towers for diving and skydiving. Wind turbine towers are not professional extreme sports venues, and their indiscriminate use poses a great safety hazard. Furthermore, some operations may damage the wind turbine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-climbing device for offshore wind turbine towers, comprising a tower body, a fixed sleeve fixedly connected to the outer side of the tower body, a rotating sleeve rotatably connected to the outer side of the tower body, the rotating sleeve being disposed at the bottom of the fixed sleeve, a first ladder disposed on one side of the fixed sleeve, a second ladder disposed on the rotating sleeve, a third ladder disposed on one side of the second ladder, an upper fixed plate integrally formed on one side of the fixed sleeve, a lower fixed plate integrally formed on one side of the rotating sleeve, support sleeves integrally formed on both sides of the lower fixed plate, positioning components disposed inside the two support sleeves, and a support component disposed on the rear side of the second ladder.

[0006] In some specific embodiments, an upper support plate is fixedly connected to one side of the upper fixed plate, a first ladder is fixedly connected to the top of the upper support plate, a lower support plate is fixedly connected to one side of the lower fixed plate, a second ladder is fixedly connected to the bottom of the lower support plate, and sliding sleeves are fixedly connected to both ends of the bottom front side of the third ladder. The third ladder is slidably connected to the inside of the sliding sleeves to limit the movement of the third ladder and improve stability.

[0007] In some specific embodiments, the positioning component includes a rotating cylinder and a threaded rod. The rotating cylinder is rotatably connected to the inside of the support sleeve, and the threaded rod is slidably connected to the inside of the rotating cylinder. Slider blocks are fixedly connected to both sides of the bottom end of the threaded rod. Slide grooves are opened on both sides of the inside of the rotating cylinder. Two sliders are slidably connected to the inside of the two slide grooves to limit the threaded rod. When the rotating cylinder rotates, it drives the threaded rod to rotate synchronously, and the threaded rod can slide inside the rotating cylinder.

[0008] In some specific embodiments, threaded sleeves are fixedly connected to the top of both support sleeves, and two threaded rods pass through the two threaded sleeves and are threadedly connected to the two threaded sleeves, so that the threaded sleeves limit the threaded rods. When the threaded rods rotate inside the threaded sleeves, the threaded rods move upwards at the same time. Positioning cylinders are integrally formed on both sides of the upper fixed plate. The two threaded rods are adapted to the two positioning cylinders respectively, so that when the two threaded rods move upwards, they pass through the two positioning cylinders and are positioned with the two positioning cylinders, thereby positioning the fixed sleeve and the rotating sleeve. The bottom ends of the two rotating cylinders are fixedly connected to the rotating shafts. The two rotating shafts pass through the two support sleeves respectively and are rotatably connected to the two support sleeves one-to-one. The bottom ends of the two rotating shafts are fixedly connected to the second bevel gears.

[0009] In some specific embodiments, a housing is fixedly connected to the bottom of the lower support plate, a rotating rod is rotatably connected inside the housing, a coil spring is provided inside the housing, one end of the coil spring is fixedly connected to the rotating rod, the coil spring passes through the side wall of the housing and is slidably connected to the housing, a steel cable is fixedly connected to the end of the coil spring away from the rotating rod, a base plate is fixedly connected to the bottom end of the steel cable, and a first bevel gear is fixedly connected to both ends of the rotating rod, the two first bevel gears are respectively meshed with two second bevel gears in a one-to-one correspondence, so that the coil spring pulls the rotating rod to rotate, thereby driving the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and drives the rotating cylinder to rotate, and the bottom sides of the lower support plate are fixedly connected to the support plates, and the two ends of the rotating rod pass through the two support plates respectively and are rotatably connected to the two support plates.

[0010] In some specific embodiments, the support assembly includes a limiting sleeve, a sleeve, and a piston. The limiting sleeve is fixedly connected to the rear side of the second ladder, the sleeve is fixedly connected to the inside of the limiting sleeve, and the piston is slidably connected to the inside of the sleeve and adapted to the sleeve. The piston has multiple through holes inside, and the inside of the sleeve is filled with buffer solution. When the piston slides inside the sleeve, the buffer solution flows through the multiple through holes, forming a damping effect and improving the buffering capacity.

[0011] In some specific embodiments, a slide rod is fixedly connected to the bottom end of the piston, the slide rod passes through the sleeve and is slidably connected to the sleeve, a pressure plate is fixedly connected to the bottom end of the slide rod, a first spring is sleeved on the outside of the slide rod, the two ends of the first spring are fixedly connected to the sleeve and the pressure plate respectively to buffer the slide rod, a connecting block is fixedly connected to the bottom end of the pressure plate, the connecting block is fixedly connected to the rear side of the third ladder, and the base plate is fixedly connected between the two connecting blocks.

[0012] In some specific embodiments, horizontal plates are fixedly connected to both sides of the top of the third ladder, and positioning blocks are fixedly connected to the top of each of the two horizontal plates. Sliding sleeves are fixedly connected to both sides of the top of the second ladder. A snap-fit ​​block is slidably connected inside each of the two sliding sleeves. A second spring is fixedly connected to the rear end of each snap-fit ​​block. The end of each second spring away from the snap-fit ​​block is fixedly connected to the inner wall of the sliding sleeve. A push rod is fixedly connected to the top of the snap-fit ​​block. A through groove is opened on the top of the sliding sleeve. The push rod passes through the through groove and is slidably connected to the through groove. A slot is opened inside the positioning block. The snap-fit ​​block corresponds to the slot, so that the second spring pushes the snap-fit ​​block to pop out and makes the snap-fit ​​block snap into the positioning block.

[0013] In some specific embodiments, two connecting plates are fixedly connected to one side of the upper fixing plate. A vertical rod is fixedly connected to the bottom of each of the two connecting plates. A guide plate is fixedly connected to the bottom end of each of the two vertical rods. The two guide plates correspond to the two push rods respectively, so that the guide plates push the push rods to move and the push rods drive the snap-fit ​​block to retract into the sliding sleeve.

[0014] In some specific embodiments, a mounting plate is fixedly connected to one side of the fixed sleeve, a motor is fixedly connected to one side of the mounting plate, a transmission gear is fixedly connected to the output end of the motor, and an arc-shaped rack is fixedly connected to the outer side of the rotating sleeve. The transmission gear meshes with the arc-shaped rack, causing the motor to start and drive the transmission gear to rotate, thereby causing the transmission gear to drive the arc-shaped rack to rotate, which in turn causes the rotating sleeve to rotate.

[0015] The beneficial effects of this invention are as follows:

[0016] (1) The anti-climbing device for offshore wind turbine towers rotates by rotating the lower fixed plate, causing the rotating sleeve to rotate the lower fixed plate to correspond with the lower support plate. At the same time, the lower fixed plate moves and causes the lower support plate to move, causing the lower support plate to move the sliding sleeve. The sliding sleeve moves and causes the locking block and push rod to move. Since the push rod corresponds to the guide plate, the guide plate limits the push rod. When the push rod rotates around, it just passes the guide plate, causing the push rod to slide along the guide plate. The guide plate is set to be inclined. When the push rod slides along the guide plate, it pushes the locking block to retract into the sliding sleeve, squeezing the second spring, causing the locking block to disengage from the positioning block, thereby releasing the limit on the second and third ladders. The third ladder slides down under its own weight, making the first, second and third ladders connected as one, which is convenient for workers to climb.

[0017] (2) When not in use, the second and third ladders of the anti-climbing device for offshore wind turbine towers are located behind the first ladder. At the same time, the third ladder is initially retracted inside the second ladder. The bottom of the tower body is at a certain height from the third ladder, making it difficult to touch, thus improving safety. Even if some people climb to the outside of the second and third ladders, they cannot climb to the first ladder behind the tower body, ensuring that they are within a safe height, reducing the possibility of personnel injury, and preventing others from climbing to the top and damaging the wind turbine. This design helps to prevent other unrelated personnel from climbing at will and improves safety.

[0018] (3) The anti-climbing device for offshore wind turbine towers uses a third ladder to lower the base plate during descent, which in turn pulls the steel cable to move the coil spring and rotate the rotating rod inside the housing. When the rotating rod rotates, it drives the two first bevel gears to rotate, which in turn drives the two second bevel gears to rotate. When the two second bevel gears rotate, they drive the two rotating cylinders to rotate. When the rotating cylinders rotate, they limit the slider through the slide groove, which drives the two threaded rods to rotate. When the two threaded rods rotate, they are limited by the threaded sleeve. When the threaded rods rotate, they rise. Since the two threaded rods correspond to the two positioning cylinders at this time, the two threaded rods insert into the two positioning cylinders when they rise, positioning the two positioning cylinders. This positions the fixed sleeve and the rotating sleeve, improving stability and preventing the rotating sleeve from separating from the fixed sleeve during climbing, which could cause danger. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure in the working state of the present invention;

[0022] Figure 4 This is a schematic diagram of the ladder structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the support sleeve of the present invention;

[0024] Figure 6 This is a schematic diagram of the rotating cylinder of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the sliding sleeve of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the base plate of the present invention;

[0027] Figure 9 This is a schematic diagram of the sleeve structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the lower support plate of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of the housing of the present invention;

[0030] Figure 12 This is a schematic diagram of the sliding sleeve of the present invention;

[0031] Figure 13 This is a schematic diagram of the rotating sleeve of the present invention.

[0032] In the diagram: 1. Tower body; 2. Fixed sleeve; 3. Rotating sleeve; 4. First ladder; 5. Second ladder; 6. Third ladder; 7. Upper fixed plate; 8. Lower fixed plate; 9. Upper support plate; 10. Lower support plate; 11. Support sleeve; 12. Rotating cylinder; 13. Threaded rod; 14. Sliding block; 15. Slide groove; 16. Positioning cylinder; 17. Threaded sleeve; 18. Shell; 19. Rotating rod; 20. Support plate; 21. First bevel gear; 22. Rotating shaft; 23. Second bevel gear 24. Coil spring; 25. Steel cable; 26. Sliding sleeve; 27. Base plate; 28. Connecting block; 29. ​​Limiting sleeve; 30. Sleeve; 31. Piston; 32. Sliding rod; 33. First spring; 34. Pressure plate; 35. Horizontal plate; 36. Positioning block; 37. Sliding sleeve; 38. Snap-fit ​​block; 39. Second spring; 40. Push rod; 41. Connecting plate; 42. Vertical rod; 43. Guide plate; 44. Arc rack; 45. Mounting plate; 46. Motor; 47. Transmission gear. Detailed Implementation

[0033] This invention provides an anti-climbing device for offshore wind turbine towers.

[0034] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 The system includes a tower body 1, a fixed sleeve 2 fixedly connected to the outer side of the tower body 1, a rotating sleeve 3 rotatably connected to the outer side of the tower body 1, the rotating sleeve 3 being located at the bottom of the fixed sleeve 2, a first ladder 4 being provided on one side of the fixed sleeve 2, a second ladder 5 being provided on the rotating sleeve 3, a third ladder 6 being provided on one side of the second ladder 5, a mounting plate 45 fixedly connected to one side of the fixed sleeve 2, a motor 46 fixedly connected to one side of the mounting plate 45, a transmission gear 47 fixedly connected to the output end of the motor 46, an arc-shaped rack 44 fixedly connected to the outer side of the rotating sleeve 3, the transmission gear 47 meshing with the arc-shaped rack 44, causing the motor 46 to start and drive the transmission gear 47 to rotate, thereby causing the transmission gear 47 to drive the arc-shaped rack 44 to rotate, thereby causing the rotating sleeve 3 to rotate, an upper fixed plate 7 integrally formed on one side of the fixed sleeve 2, a lower fixed plate 8 integrally formed on one side of the rotating sleeve 3, support sleeves 11 integrally formed on both sides of the lower fixed plate 8, positioning components being provided inside the two support sleeves 11, and a support component being provided on the rear side of the second ladder 5.

[0035] In some specific embodiments, an upper support plate 9 is fixedly connected to one side of the upper fixed plate 7, a first ladder 4 is fixedly connected to the top of the upper support plate 9, a lower support plate 10 is fixedly connected to one side of the lower fixed plate 8, a second ladder 5 is fixedly connected to the bottom of the lower support plate 10, and sliding sleeves 26 are fixedly connected to both ends of the bottom front side of the third ladder 6. The third ladder 6 is slidably connected to the inside of the sliding sleeves 26 to limit the movement of the third ladder 6 and improve stability.

[0036] In some specific embodiments, the positioning component includes a rotating cylinder 12 and a threaded rod 13. The rotating cylinder 12 is rotatably connected to the inside of the support sleeve 11, and the threaded rod 13 is slidably connected to the inside of the rotating cylinder 12. Sliding blocks 14 are fixedly connected to both sides of the bottom end of the threaded rod 13. Sliding grooves 15 are provided on both sides of the inside of the rotating cylinder 12. The two sliding blocks 14 are slidably connected to the inside of the two sliding grooves 15 respectively to limit the threaded rod 13. When the rotating cylinder 12 rotates, it drives the threaded rod 13 to rotate synchronously, and the threaded rod 13 can slide inside the rotating cylinder 12.

[0037] In some specific embodiments, threaded sleeves 17 are fixedly connected to the top of both support sleeves 11. Two threaded rods 13 pass through the two threaded sleeves 17 and are threadedly connected to the two threaded sleeves 17, so that the threaded sleeves 17 limit the threaded rods 13. When the threaded rods 13 rotate inside the threaded sleeves 17, the threaded rods 13 move upward at the same time. Positioning cylinders 16 are integrally formed on both sides of the upper fixing plate 7. The two threaded rods 13 are adapted to the two positioning cylinders 16 respectively, so that when the two threaded rods 13 move upward, they pass through the two positioning cylinders 16 and are positioned with the two positioning cylinders 16, thereby positioning the fixing sleeve 2 and the rotating sleeve 3. The bottom ends of the two rotating cylinders 12 are fixedly connected to the rotating shafts 22. The two rotating shafts 22 pass through the two support sleeves 11 respectively and are rotatably connected to the two support sleeves 11 in a one-to-one correspondence. The bottom ends of the two rotating shafts 22 are fixedly connected to the second bevel gears 23.

[0038] In some specific embodiments, a housing 18 is fixedly connected to the bottom of the lower support plate 10. A rotating rod 19 is rotatably connected inside the housing 18. A coil spring 24 is provided inside the housing 18. One end of the coil spring 24 is fixedly connected to the rotating rod 19. The coil spring 24 passes through the side wall of the housing 18 and is slidably connected to the housing 18. A steel cable 25 is fixedly connected to the end of the coil spring 24 away from the rotating rod 19. A base plate 27 is fixedly connected to the bottom end of the steel cable 25. Both ends of the rotating rod 19 are fixedly connected to first bevel gears 21. The two first bevel gears 21 are respectively meshed with two second bevel gears 23 in a one-to-one correspondence. The coil spring 24 pulls the rotating rod 19 to rotate, thereby driving the first bevel gears 21 to rotate. The first bevel gears 21 drive the second bevel gears 23 to rotate, and drive the rotating cylinder 12 to rotate. Support plates 20 are fixedly connected to both sides of the bottom of the lower support plate 10. Both ends of the rotating rod 19 pass through the two support plates 20 and are rotatably connected to the two support plates 20.

[0039] In some specific embodiments, the support assembly includes a limiting sleeve 29, a sleeve 30, and a piston 31. The limiting sleeve 29 is fixedly connected to the rear side of the second ladder 5, the sleeve 30 is fixedly connected to the inside of the limiting sleeve 29, and the piston 31 is slidably connected to the inside of the sleeve 30 and adapted to the sleeve 30. The piston 31 has multiple through holes inside, and the inside of the sleeve 30 is filled with buffer solution. When the piston 31 slides inside the sleeve 30, the buffer solution flows through the multiple through holes, forming a damping effect and improving the buffering capacity.

[0040] In some specific embodiments, a slide rod 32 is fixedly connected to the bottom end of the piston 31. The slide rod 32 passes through the sleeve 30 and is slidably connected to the sleeve 30. A pressure plate 34 is fixedly connected to the bottom end of the slide rod 32. A first spring 33 is sleeved on the outside of the slide rod 32. The two ends of the first spring 33 are fixedly connected to the sleeve 30 and the pressure plate 34 respectively to buffer the slide rod 32. A connecting block 28 is fixedly connected to the bottom end of the pressure plate 34. The connecting block 28 is fixedly connected to the rear side of the third ladder 6. The base plate 27 is fixedly connected between the two connecting blocks 28.

[0041] In some specific embodiments, the top two sides of the third ladder 6 are fixedly connected with horizontal plates 35, and the top of the two horizontal plates 35 is fixedly connected with positioning blocks 36. The top two sides of the second ladder 5 are fixedly connected with sliding sleeves 37, and the inside of the two sliding sleeves 37 is slidably connected with locking blocks 38. The rear ends of the two locking blocks 38 are fixedly connected with second springs 39. The ends of the two second springs 39 away from the locking blocks 38 are fixedly connected to the inner wall of the sliding sleeves 37. The top of the locking blocks 38 is fixedly connected with push rods 40. The top of the sliding sleeves 37 has a through groove, and the push rods 40 pass through the through groove and are slidably connected to the through groove. The inside of the positioning blocks 36 has a locking groove, and the locking blocks 38 correspond to the locking groove, so that the second springs 39 push the locking blocks 38 out and lock the locking blocks 38 onto the positioning blocks 36.

[0042] In some specific embodiments, two connecting plates 41 are fixedly connected to one side of the upper fixing plate 7. Vertical rods 42 are fixedly connected to the bottom of each of the two connecting plates 41. Guide plates 43 are fixedly connected to the bottom of each of the two vertical rods 42. The two guide plates 43 correspond to the two push rods 40 respectively, so that the guide plates 43 push the push rods 40 to move, and the push rods 40 drive the snap-fit ​​block 38 to retract into the sliding sleeve 37.

[0043] Specifically, the initial positions of the second ladder 5 and the third ladder 6 are located opposite the first ladder 4. When the staff needs to inspect the fan, the motor 46 is started using a remote control. When the motor 46 starts, it drives the transmission gear 47 to rotate. Because the transmission gear 47 is meshed with the arc-shaped rack 44, the transmission gear 47 drives the arc-shaped rack 44 to rotate, and drives the rotating sleeve 3 to rotate. When the rotating sleeve 3 rotates, it drives the lower fixed plate 8 to rotate, so that the rotating sleeve 3 drives the lower fixed plate 8 to rotate to correspond with the lower support plate 10. At the same time, when the lower fixed plate 8 moves, it drives the lower support plate 10 to move, so that the lower support plate 10 drives the sliding sleeve 37 to move. When the sliding sleeve 37 moves, it drives the locking block 38 and the push rod 40 to move. Because the push rod 40 corresponds to the guide plate 43, the guide plate 43 limits the push rod 40. When the push rod 40 rotates around, it just passes through the guide plate 43, so that the push rod 40 slides along the guide plate 43. The guide plate 43 is set to tilt. When the push rod 40 slides along the guide plate 43, it pushes the locking block 38 to retract into the sliding sleeve 37, squeezing the second spring 39 and causing the locking block 38 to disengage from the positioning block 36. This releases the restriction on the second ladder 5 and the third ladder 6. The third ladder 6 slides down under its own weight, connecting the first ladder 4, the second ladder 5, and the third ladder 6 into one unit, facilitating climbing by workers. When not in use, the second ladder 5 and the third ladder 6 are located behind the first ladder 4. Initially, the third ladder 6 is retracted inside the second ladder 5, and the bottom of the tower body 1 is at a certain height from the third ladder 6, making it difficult to touch and improving safety. Even if someone climbs to the outside of the second ladder 5 and the third ladder 6, they cannot climb to the first ladder 4 behind the tower body 1, ensuring a safe height and reducing the possibility of injury. It also prevents others from climbing to the top and damaging the wind turbine. This design helps prevent unauthorized personnel from climbing at will, improving safety.

[0044] As the third ladder 6 descends, it lowers the base plate 27, which in turn pulls the steel cable 25 downwards. The steel cable 25 then moves the coil spring 24, causing the rotating rod 19 to rotate inside the housing 18. The rotating rod 19 rotates, driving the two first bevel gears 21, which in turn drive the two second bevel gears 23. When the two second bevel gears 23 rotate, they drive the two rotating cylinders 12 to rotate. As the rotating cylinders 12 rotate, the sliding groove 15 limits the slider 14, causing the two threaded rods 13 to rotate. The threaded rods 13 are then limited by the threaded sleeve 17 during rotation. Simultaneously, the threaded rods 13 rise, because at this time the two threaded rods... 13 corresponds to the two positioning cylinders 16. Therefore, when the two threaded rods 13 rise, they are inserted into the two positioning cylinders 16 to position the two positioning cylinders 16, thereby positioning the fixed sleeve 2 and the rotating sleeve 3, improving stability, and preventing the rotating sleeve 3 from detaching from the fixed sleeve 2 during climbing, which could cause danger. After use, the operator can lift the third ladder 6 upwards to make the third ladder 6 drive the positioning block 36 to correspond with the sliding sleeve 37, and make the control motor 46 rotate slightly to disengage the guide plate 43 from the push rod 40. The locking block 38 will pop out again into the sliding sleeve 37 and position the positioning block 36. Then the motor 46 can be started again to drive the rotating sleeve 3 to rotate to the back of the first ladder 4 for easy operation.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A climb-prevention device for an offshore wind turbine tower, comprising a tower body, characterized in that A fixed sleeve is fixedly connected to the outer side of the tower body, and a rotating sleeve is rotatably connected to the outer side of the tower body. The rotating sleeve is located at the bottom of the fixed sleeve. A first ladder is provided on one side of the fixed sleeve, a second ladder is provided on the rotating sleeve, and a third ladder is provided on one side of the second ladder. An upper fixed plate is integrally formed on one side of the fixed sleeve, and a lower fixed plate is integrally formed on one side of the rotating sleeve. Support sleeves are integrally formed on both sides of the lower fixed plate. Positioning components are provided inside both support sleeves. A support component is provided on the rear side of the second ladder. An upper support plate is fixedly connected to one side of the upper fixed plate, the first ladder is fixedly connected to the top of the upper support plate, a lower support plate is fixedly connected to one side of the lower fixed plate, the second ladder is fixedly connected to the bottom of the lower support plate, and sliding sleeves are fixedly connected to both ends of the bottom front side of the third ladder, and the third ladder is slidably connected to the inside of the sliding sleeves. The positioning component includes a rotating cylinder and a threaded rod. The rotating cylinder is rotatably connected to the inside of the support sleeve, and the threaded rod is slidably connected to the inside of the rotating cylinder. Slider blocks are fixedly connected to both sides of the bottom end of the threaded rod. Slide grooves are opened on both sides of the inside of the rotating cylinder, and the two sliders are slidably connected to the inside of the two slide grooves respectively. The top of each of the two support sleeves is fixedly connected with a threaded sleeve, and the two threaded rods pass through the two threaded sleeves and are threadedly connected to the two threaded sleeves respectively. The upper fixing plate has a positioning cylinder integrally formed on both sides. The two threaded rods are adapted to the two positioning cylinders respectively. The bottom of each of the two rotating cylinders is fixedly connected with a rotating shaft. The two rotating shafts pass through the two support sleeves respectively and are rotatably connected to the two support sleeves one-to-one. The bottom of each of the two rotating shafts is fixedly connected with a second bevel gear. A housing is fixedly connected to the bottom of the lower support plate. A rotating rod is rotatably connected inside the housing. A coil spring is installed inside the housing. One end of the coil spring is fixedly connected to the rotating rod. The coil spring passes through the side wall of the housing and is slidably connected to the housing. A steel cable is fixedly connected to the end of the coil spring away from the rotating rod. A base plate is fixedly connected to the bottom end of the steel cable. A first bevel gear is fixedly connected to both ends of the rotating rod. The two first bevel gears are respectively meshed with two second bevel gears. Support plates are fixedly connected to both sides of the bottom of the lower support plate. The two ends of the rotating rod pass through the two support plates respectively and are rotatably connected to the two support plates.

2. A climb deterrent device for an offshore wind turbine tower according to claim 1, characterised in that, The support assembly includes a limiting sleeve, a sleeve, and a piston. The limiting sleeve is fixedly connected to the rear side of the second ladder, the sleeve is fixedly connected to the inside of the limiting sleeve, and the piston is slidably connected to the inside of the sleeve and adapted to the sleeve. The piston has multiple through holes inside.

3. A climb deterrent device for an offshore wind turbine tower according to claim 2, characterised in that, A sliding rod is fixedly connected to the bottom end of the piston. The sliding rod passes through the sleeve and is slidably connected to the sleeve. A pressure plate is fixedly connected to the bottom end of the sliding rod. A first spring is sleeved on the outside of the sliding rod. The two ends of the first spring are fixedly connected to the sleeve and the pressure plate, respectively. A connecting block is fixedly connected to the bottom end of the pressure plate. The connecting block is fixedly connected to the rear side of the third ladder. The base plate is fixedly connected between the two connecting blocks.

4. The anti-climbing device for offshore wind turbine towers according to claim 1, characterized in that, The third ladder has horizontal plates fixedly connected to both sides of its top, and positioning blocks fixedly connected to the top of each of the two horizontal plates. The second ladder has sliding sleeves fixedly connected to both sides of its top, and locking blocks slidably connected inside each of the two sliding sleeves. Second springs are fixedly connected to the rear ends of each of the two locking blocks. The ends of the two second springs away from the locking blocks are fixedly connected to the inner wall of the sliding sleeves. Push rods are fixedly connected to the top of the locking blocks. A through groove is opened on the top of the sliding sleeves. The push rod passes through the through groove and is slidably connected to the through groove. A locking slot is opened inside the positioning block, and the locking block corresponds to the locking slot.

5. An anti-climbing device for offshore wind turbine towers according to claim 4, characterized in that, Two connecting plates are fixedly connected to one side of the upper fixing plate. A vertical rod is fixedly connected to the bottom of each of the two connecting plates. A guide plate is fixedly connected to the bottom of each of the two vertical rods. The two guide plates correspond to the two push rods respectively.

6. The anti-climbing device for offshore wind turbine towers according to claim 1, characterized in that, A mounting plate is fixedly connected to one side of the fixed sleeve, a motor is fixedly connected to one side of the mounting plate, a transmission gear is fixedly connected to the output end of the motor, and an arc-shaped rack is fixedly connected to the outer side of the rotating sleeve, with the transmission gear meshing with the arc-shaped rack.

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