Modular wind turbine tower

Abstract

The application discloses a modular wind power tower and relates to the technical field of wind power towers. The modular wind power tower comprises two tower sections, mounting racks are fixed at two ends of each tower section, a plurality of reserved holes are formed in the side edges of each mounting rack, a fixing rack is fixed to the upper side of each tower section, a support rack is fixed to the middle part of the fixing rack, a through hole is formed in the middle part of the support rack, a support rod is slidably connected to the inner wall of the through hole, and a plurality of guide grooves are formed in the lower end of each tower section. A connecting structure is arranged on the support rod. When the tower sections are connected by hoisting, the modular wind power tower has the effects of automatic connection, stress buffering and stable positioning, and the use convenience, protection and stability of the modular wind power tower are improved.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower technology, specifically a modular wind turbine tower. Background Technology

[0002] With the global trend towards a clean and low-carbon energy structure, wind power, as a mature renewable energy technology with the potential for large-scale development, has become one of the core areas of national energy strategies. As wind power projects expand into low-wind-speed areas, offshore and deep-sea regions, higher requirements are placed on the height, load-bearing capacity and adaptability of wind turbine towers. The technical bottlenecks of traditional integrated wind turbine towers are gradually becoming apparent, and the research and application of modular wind turbine towers have become a key direction for breaking through the industry's development limitations.

[0003] While current modular wind turbine towers can meet basic operational requirements, core pain points in construction and operation remain unresolved. Particularly during hoisting and docking, insufficient module interface precision, poor equipment stability, and factors such as wind conditions and ground subsidence necessitate repeated manual adjustments to the hoisting points and orientation to complete the docking. This manual reliance not only prolongs work time but also makes it difficult to integrate with automated hoisting logic, hindering the implementation of automated docking technology. The chain reaction is significant: firstly, prolonged module suspension increases equipment energy consumption and high-altitude safety risks; secondly, the lack of automation weakens the "rapid assembly" advantage, slowing down large-scale wind farm construction and amplifying labor costs and personnel allocation difficulties in remote areas. Ultimately, the convenience of modular towers is not fully realized, revealing a "cost-effectiveness deficiency" in some scenarios, thus restricting their widespread adoption in the large-scale development of wind power. Therefore, inventing a modular wind turbine tower to solve these problems is essential. Summary of the Invention

[0004] The purpose of this invention is to provide a modular wind turbine tower to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a modular wind turbine tower, comprising two tower sections, each tower section having a mounting frame fixed at both ends, each mounting frame having several reserved holes on its side, each tower section having a fixing frame fixed on its upper side, a support frame fixed in the middle of the fixing frame, a through hole in the middle of the support frame, a support rod slidably connected to the inner wall of the through hole, and several guide grooves at the lower end of each tower section;

[0006] The support rod is provided with a connecting structure, which includes an arc-shaped frame and a fixed rod. Both ends of the fixed rod are fixed with fixed blocks, and the two fixed blocks are fixed with arc-shaped heads at their disjointed ends. The connecting structure can move along the length of the support rod with the arc-shaped frame and arc-shaped heads to guide and position the tower section in contact with it.

[0007] Preferably, the outer surface of the support rod is slidably connected to the inner wall of the through hole, the upper outer surface of the support rod is slidably connected to the inner wall of the middle part of the arc-shaped frame, the upper side of the support rod is fixed to the middle part of the fixing rod, the two ends of the fixing rod are fixed to the middle of the near ends of the two fixing blocks, the far ends of the two fixing blocks are fixed to the near ends of the two arc-shaped heads, the two arc-shaped heads are arranged in an arc shape, and the outer surface of the two arc-shaped heads is in contact with the inner wall of two of the guide grooves.

[0008] Preferably, the two ends of the fixing frame are fixed to the upper side of the tower section, the lower end of the support frame is fixed to the middle of the upper side of the fixing frame, the through hole passes through the middle of the upper side of the support frame, and the outer surface of the support rod is slidably connected to the inner wall of the through hole.

[0009] Preferably, the arc-shaped frame has a sliding groove in the middle, a sliding plate is slidably connected to the inner wall of the sliding groove, a first spring is fixed on the upper side of the sliding plate, the support frame has a frame groove in the middle, through grooves are opened on both sides of the frame groove, a stabilizing block is slidably connected to the inner wall of the frame groove, and a second spring is fixed at the lower end of the stabilizing block.

[0010] Preferably, the upper end of the support rod is fixed to the middle of the lower side of the slide plate, the outer surface of the slide plate is slidably connected to the inner wall of the slide groove, the upper end of the slide plate is fixed to the lower end of the first spring, and the upper end of the first spring is fixed to the inner wall of the upper end of the slide groove.

[0011] Preferably, the lower end of the support rod is fixed to the middle of the upper side of the stabilizing block, the outer surface of the stabilizing block is slidably connected to the inner wall of the frame groove, the middle of the upper end of the frame groove is connected to the through hole, the lower end of the stabilizing block is fixed to the upper end of the second spring, and the lower end of the second spring is fixed to the inner wall of the lower end of the frame groove.

[0012] Preferably, each of the two stabilizing blocks has a support block fixed on both sides, and each of the two support blocks has an upper groove on the side away from each other. Each of the two upper grooves has an upper fixing rod fixed in the middle. The outer surfaces of the two upper fixing rods are rotatably connected to the near ends of the two connecting frames. The far ends of the two connecting frames are rotatably connected to the middle of the two lower fixing rods. Each of the two lower fixing rods has a slider fixed at both ends, and each of the two sliders has a lower groove on the upper end. Each of the two sliders has a sliding block fixed at the lower end. Each of the two sliding blocks has a connecting frame fixed at the other end, and each of the two connecting frames has a locking block fixed at the other end. Each fixing frame has a limit groove on both sides, and each guide groove has a locking groove on the lower side.

[0013] Preferably, the two support blocks are fixed at their proximal ends to both sides of the stabilizing block, the two support blocks are fixed at their disjoint ends to both ends of the two upper fixing rods, the outer surfaces of the two support blocks are slidably connected to the inner walls of the two through slots, the outer surfaces of the two upper fixing rods are rotatably connected to the proximal ends of the two connecting frames, the disjoint ends of the two connecting frames are rotatably connected to the middle outer surfaces of the two lower fixing rods, and the two lower fixing rods are fixed at both ends to the upper ends of the two sliders.

[0014] Preferably, the lower ends of the two sliders are fixed to the near ends of the two sliding blocks, the far ends of the two sliding blocks are fixed to the lower ends of the two connecting frames, the outer surfaces of the two sliding blocks are slidably connected to the inner walls of the two limiting grooves, the upper ends of the two connecting frames are fixed to the near ends of the two locking blocks, the outer surfaces of the far sides of the two locking blocks are in contact with the inner walls of two of the locking grooves, and the far sides of the two locking blocks are both arc-shaped.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] When the tower sections are hoisted and connected, the present invention enables the fixed frame, support frame, through hole, support rod, arc frame, fixed rod, fixed block, arc head and guide groove to work together to achieve automatic connection. This greatly simplifies the hoisting and connection operation process, reduces the difficulty of operation, and provides significant convenience for on-site construction, thereby improving the ease of use of modular wind turbine towers.

[0017] When connecting tower sections by hoisting, the present invention enables the sliding groove, sliding plate, first spring, frame groove, through groove, stabilizing block, and second spring to work together to achieve the effect of force buffering, avoid surface damage or structural deformation of tower sections due to hard impact, effectively protect the modular wind turbine tower, and thus improve the protective performance of the modular wind turbine tower.

[0018] When connecting tower sections by hoisting, the present invention enables the support block, upper groove, upper fixing rod, connecting frame, lower fixing rod, slider, lower groove, sliding block, connecting frame, locking block, limiting groove, and locking groove to work together to achieve a stable limiting effect. This effectively avoids the problem of installation accuracy being affected by positional offset after tower section connection, thereby improving the stability of modular wind power towers. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional view of the tower section of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged view of the structure of section A in the middle;

[0022] Figure 4 This is a partial structural cross-sectional view of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged view of the structure of section B in the middle;

[0024] Figure 6 For the present invention Figure 4 Enlarged view of the structure of section C;

[0025] Figure 7 This is a schematic diagram of the arc-shaped frame structure of the present invention;

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

[0027] Figure 9 This is a bottom view of the tower section of the present invention;

[0028] Figure 10 This is a top view of the tower section of the present invention.

[0029] In the diagram: 1. Tower section; 2. Mounting frame; 3. Reserved hole; 4. Fixing frame; 5. Support frame; 6. Through hole; 7. Support rod; 8. Arc-shaped frame; 9. Fixing rod; 10. Fixing block; 11. Arc-shaped head; 12. Sliding groove; 13. Sliding plate; 14. First spring; 15. Frame groove; 16. Through groove; 17. Stabilizing block; 18. Second spring; 19. Support block; 20. Upper groove; 21. Upper fixing rod; 22. Connecting frame; 23. Lower fixing rod; 24. Sliding block; 25. Lower groove; 26. Sliding block; 27. Connecting frame; 28. Locking block; 29. ​​Limiting groove; 30. Guide groove; 31. Locking groove. Detailed Implementation

[0030] 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.

[0031] Example 1: This example provides a modular wind turbine tower;

[0032] Please see Figure 1 - Figure 10As shown, the structure includes two tower sections 1. Each tower section 1 has mounting brackets 2 fixed at both ends. Each mounting bracket 2 has several pre-drilled holes 3 on its side. Each tower section 1 has a fixing bracket 4 fixed on its upper side. A support bracket 5 is fixed in the middle of the fixing bracket 4. A through hole 6 is opened in the middle of the support bracket 5, and a support rod 7 is slidably connected to the inner wall of the through hole 6. Each tower section 1 has several guide grooves 30 at its lower end. A connecting structure is provided on the support rod 7, which includes an arc-shaped frame 8 and a fixing rod 9. Both ends of the fixing rod 9 are fixed with fixing... Block 10, with arc-shaped heads 11 fixed at their separated ends. Due to the special structure of its arc-shaped surface, the arc-shaped head 11 creates a clever guiding fit upon initial contact with the guide groove 30 at the lower end of the tower segment 1 during hoisting. Since the arc-shaped head 11 is in a horizontally stationary state, while the tower segment 1 may exhibit slight tilting during hoisting due to factors such as suspension posture and wind disturbance, a lateral force is generated along the tangent of the arc-shaped surface when the inner wall of the guide groove 30 contacts the arc-shaped surface of the arc-shaped head 11. Under the action of this force, the tower segment 1, which may have had angular deviations, will naturally rotate and adjust. The arc-shaped surface of the arc-shaped head 11 acts like a "guide rail," guiding the tower segment 1 to gradually correct its posture through continuous contact friction until the guide groove 30 and the contour of the arc-shaped head 11 are completely aligned. This process requires no manual intervention. The adaptive nature of the arc structure enables automatic centering and angle calibration of tower segment 1 during docking. This not only simplifies the docking operation process but also significantly improves the accuracy of the initial docking, laying the foundation for stable operation of subsequent buffering, limiting and other processes.

[0033] Please refer to it again. Figure 1 - Figure 10 As shown, the outer surface of the support rod 7 is slidably connected to the inner wall of the through hole 6, the upper outer surface of the support rod 7 is slidably connected to the inner wall of the middle part of the arc frame 8, the upper side of the support rod 7 is fixed to the middle part of the fixing rod 9, the two ends of the fixing rod 9 are fixed to the middle of the near ends of the two fixing blocks 10, the two ends of the two fixing blocks 10 are fixed to the near ends of the two arc heads 11, the two arc heads 11 are arc-shaped, the outer surface of the two arc heads 11 is in contact with the inner wall of the two guide grooves 30, the two ends of the fixing frame 4 are fixed to the upper side of the tower section 1, the lower end of the support frame 5 is fixed to the middle of the upper side of the fixing frame 4, the through hole 6 passes through the middle of the upper side of the support frame 5, and the outer surface of the support rod 7 is slidably connected to the inner wall of the through hole 6.

[0034] The specific implementation process is as follows: First, the lower tower segment 1 is installed and fixed through the pre-drilled holes 3 on the mounting frame 2, laying the foundation for subsequent docking operations. Then, when docking is performed by hoisting tower segment 1, the upper tower segment 1 will first contact the matching structure of the lower tower segment 1. This structure, from bottom to top, consists of: a fixed frame 4 fixed to the upper side of the lower tower segment 1, a support frame 5 fixed to the middle of the upper end of the fixed frame 4, a support rod 7 sliding along the inner wall of the through hole 6 in the middle of the support frame 5, and an arc-shaped frame 8 connected to the upper end of the support rod 7. Under the pressure of the upper tower segment 1, the arc-shaped frame 8, with its own arc-shaped structural characteristics, provides stable guidance for the upper tower segment 1, ensuring that the tower segment 1 remains vertical during hoisting and avoiding deviation that could affect docking accuracy. As the upper tower segment 1 continues to move downwards, the pre-drilled guide groove 30 at its lower end will precisely contact the lower arc-shaped head 11.

[0035] The installation structure of the arc-shaped head 11 is as follows: it is connected to the upper side of the support rod 7 via a fixing rod 9, and both ends of the fixing rod 9 are reinforced by fixing blocks 10 to ensure the installation stability of the arc-shaped head 11. With the help of the compression cooperation between the guide groove 30 and the arc-shaped head 11, the upper tower section 1 being hoisted will automatically complete the rotational fine adjustment, and finally achieve precise docking with the lower fixed tower section 1. The entire process can achieve automatic docking without manual intervention, which greatly simplifies the hoisting and docking operation process, reduces the difficulty of operation, and provides significant convenience for on-site construction, thereby improving the ease of use of modular wind turbine towers.

[0036] Example 2: During tower docking operations, the lack of a buffer structure at the tower connection points makes them susceptible to hard impacts. This not only causes surface damage and structural deformation but also shortens their service life, posing a potential threat to the stability and safety of the subsequent wind power system. Therefore, it is necessary to add buffer devices or adopt buffer designs at the tower contact points to enhance the impact resistance of modular wind turbine towers, effectively improve their protective performance during use, and ensure the quality of docking operations and the long-term reliability of equipment operation.

[0037] Please see Figure 1 - Figure 10 As shown, a force-bearing buffer function has been added based on Embodiment 1;

[0038] Please refer to it again. Figure 1 - Figure 10As shown, the arc-shaped frame 8 has a groove 12 in the middle, and a sliding plate 13 is slidably connected to the inner wall of the groove 12. A first spring 14 is fixed to the upper side of the sliding plate 13. The support frame 5 has a support groove 15 in the middle, and through grooves 16 are opened on both sides of the support groove 15. A stabilizing block 17 is slidably connected to the inner wall of the support groove 15. A second spring 18 is fixed to the lower end of the stabilizing block 17. The upper end of the support rod 7 is fixed to the lower middle of the sliding plate 13. The outer surface of the sliding plate 13 is slidably connected to the inner wall of the groove 12. The upper end of the sliding plate 13 is fixed to the lower end of the first spring 14. The upper end of the first spring 14 is fixed to the upper inner wall of the groove 12. The lower end of the support rod 7 is fixed to the upper middle of the stabilizing block 17. The outer surface of the stabilizing block 17 is slidably connected to the inner wall of the support groove 15. The upper middle of the support groove 15 is connected to the through hole 6. The lower end of the stabilizing block 17 is fixed to the upper end of the second spring 18. The lower end of the second spring 18 is fixed to... On the inner wall of the lower end of the support groove 15, the first spring 14 and the second spring 18 work together. When there may be collisions or impacts during the hoisting and docking of tower section 1, the two springs release elastic force based on their own elastic deformation characteristics to absorb and dissipate the impact energy in layers. It should be noted that the springs used here are all of high strength specifications. They not only have better fatigue resistance and deformation recovery ability, but also maintain stable elastic force output after repeated docking impacts, avoiding the decrease in buffering effect due to spring failure. At the same time, they also have a higher load-bearing limit, which can effectively cope with the instantaneous impact force generated during the docking of tower section 1 and prevent excessive deformation or breakage of the springs. Through the double buffer protection of high-strength springs, the risk of damage to tower section 1 from collisions can be minimized to the greatest extent, further ensuring the safety and reliability of the modular wind power tower docking process.

[0039] The specific implementation process is as follows: When the tower section 1 is hoisted and docked, the tower section 1 at the top first contacts the arc frame 8 and generates a squeezing force during the descent. At this time, the first spring 14 fixed to the inner wall of the slide groove 12 in the middle of the arc frame 8 will undergo compression deformation under the cooperative support of the fixed rod 9 and the slide plate 13. The spring itself forms an initial buffer by utilizing its elasticity characteristics, effectively weakening the impact of the initial squeezing force on the tower section 1 and the arc frame 8. Subsequently, as the tower section 1 continues to descend, the guide groove 30 opened at its lower end further contacts and squeezes the arc head 11 of the arc frame 8. The arc head 11 drives the support rod 7 to apply force to the stabilizing block 17 through the fixed block 10 and the fixed rod 9, so that the stabilizing block 17 moves down along a predetermined trajectory under the limiting constraint of the frame groove 15. During the downward movement, the stabilizing block 17 squeezes the second spring 18 fixed at its lower end. After being compressed, the second spring 18 generates a reverse elastic force to form a secondary buffer. Through the dual protection structure of "initial buffer + secondary buffer", the impact force during the docking process of tower section 1 can be fully absorbed, achieving the effect of force buffering. This avoids surface damage or structural deformation of tower section 1 due to hard impact, effectively protecting the modular wind turbine tower and thus improving the protective performance of the modular wind turbine tower.

[0040] Example 3: After the tower assembly is completed and the bolt tightening process begins, the lack of effective relative fixation of the assembled tower beforehand can lead to positional shifts and misalignments under the force of bolt tightening. This not only causes misalignment of bolt holes and uneven tightening torque but also directly compromises the precision of the tower assembly, posing a potential threat to the stability of the overall structure during installation. In severe cases, it may affect the load-bearing capacity and long-term operational safety of the wind turbine tower. Therefore, reliable limiting and fixing measures must be implemented on the assembled tower before bolt tightening. By precisely constraining its displacement, the tower's position must remain stable throughout the bolt installation process, thereby improving the structural stability of the modular wind turbine tower.

[0041] Please see Figure 1 - Figure 10 As shown, a stable limiting function has been added based on Embodiment 1;

[0042] Please refer to it again. Figure 1 - Figure 10 As shown, support blocks 19 are fixed on both sides of the stabilizing block 17. Upper grooves 20 are formed on the disjoint sides of the two support blocks 19. Upper fixing rods 21 are fixed in the middle of the two upper grooves 20. The outer surfaces of the two upper fixing rods 21 are rotatably connected to the near ends of the two connecting frames 22. The disjoint ends of the two connecting frames 22 are rotatably connected to the middle of the two lower fixing rods 23. Slider blocks 24 are fixed at both ends of the two lower fixing rods 23. Lower grooves 25 are formed on the upper ends of the two sliders 24. Sliding blocks 26 are fixed at the lower ends of the two sliders 24. Connecting frames 27 are fixed at the other ends of the two sliding blocks 26. Locking blocks 28 are fixed at the other ends of the two connecting frames 27. Limiting grooves 29 are formed on both sides of the fixing frame 4. Locking grooves 31 are formed on the lower side of each guide groove 30. The near ends of the two support blocks 19 are fixed to both sides of the stabilizing block 17. Two support blocks 19 are fixed at opposite ends to the two upper fixed rods 21. The outer surfaces of the two support blocks 19 are slidably connected to the inner walls of the two through slots 16. The outer surfaces of the two upper fixed rods 21 are rotatably connected to the near ends of the two connecting frames 22. The opposite ends of the two connecting frames 22 are rotatably connected to the middle outer surfaces of the two lower fixed rods 23. The two lower fixed rods 23 are fixed at opposite ends to the upper ends of the two sliders 24. The lower ends of the two sliders 24 are fixed to the near ends of the two sliding blocks 26. The opposite ends of the two sliding blocks 26 are fixed to the lower ends of the two connecting frames 27. The outer surfaces of the two sliding blocks 26 are slidably connected to the inner walls of the two limiting slots 29. The upper ends of the two connecting frames 27 are fixed to the near ends of the two locking blocks 28. The opposite outer surfaces of the two locking blocks 28 are in contact with the inner walls of two of the locking slots 31. The opposite sides of the two locking blocks 28 are both arc-shaped.

[0043] The specific implementation process is as follows: When the tower section 1 is hoisted and connected, the guide groove 30 of the upper tower section 1 presses down on the arc-shaped head 11. The arc-shaped head 11 drives the support rod 7 to move down synchronously through the connected fixed block 10 and fixed rod 9. The stabilizing block 17 at the lower end of the support rod 7 moves down accordingly, and drives the fixed support blocks 19 on both sides to move down together. The two support blocks 19 drive the upper fixed rod 21 at the opposite ends to move down. The upper fixed rod 21 drives the two lower fixed rods 23 to move away from each other through the connecting frame 22 rotatably connected to the outer surface. The sliders 24 at both ends of the lower fixed rods 23 separate synchronously under the constraint of the limiting groove 29, thereby driving the lower sliding block 26 to move away from each other along the limiting groove 29. The connecting frame 27 at the opposite end of the sliding block 26 separates synchronously, and finally pushes the two locking blocks 28 at the upper end to open to both sides. When the two tower sections 1 are fully connected, the two locking blocks 28 are inserted into the corresponding locking groove 31, realizing the stable limiting of the spliced ​​tower section 1. Because the locking block 28 adopts an arc-shaped design at the phase separation end, during subsequent disassembly, it is only necessary to lift the tower section 1 upwards, and the guiding effect of the arc surface can be used to make the locking block 28 naturally detach from the slot 31 without additional operation, thus achieving a stable limiting effect. This effectively avoids the problem of installation accuracy being affected by positional offset after the tower section 1 is connected, thereby improving the stability of the modular wind power tower.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular wind turbine tower, comprising two tower sections (1), characterized in that: Each tower segment (1) is fixed with a mounting bracket (2) at both ends. Each mounting bracket (2) has several reserved holes (3) on its side. Each tower segment (1) is fixed with a fixing bracket (4) on its upper side. A support bracket (5) is fixed in the middle of the fixing bracket (4). A through hole (6) is opened in the middle of the support bracket (5). A support rod (7) is slidably connected to the inner wall of the through hole (6). Each tower segment (1) has several guide grooves (30) at its lower end. The support rod (7) is provided with a connecting structure, which includes an arc frame (8) and a fixed rod (9). Both ends of the fixed rod (9) are fixed with fixed blocks (10), and the two fixed blocks (10) are fixed with arc heads (11) at their disjoint ends. The connecting structure can move along the length of the support rod (7) with the arc frame (8) and the arc head (11) to guide and position the tower section (1) in contact with it.

2. A modular wind turbine tower according to claim 1, characterized in that: The outer surface of the support rod (7) is slidably connected to the inner wall of the through hole (6). The upper outer surface of the support rod (7) is slidably connected to the inner wall of the middle part of the arc frame (8). The upper side of the support rod (7) is fixed to the middle part of the fixing rod (9). The two ends of the fixing rod (9) are fixed to the middle of the near ends of the two fixing blocks (10). The far ends of the two fixing blocks (10) are fixed to the near ends of the two arc heads (11). The two arc heads (11) are arc-shaped. The outer surface of the two arc heads (11) is in contact with the inner wall of the two guide grooves (30).

3. A modular wind turbine tower according to claim 1, characterized in that: The fixed frame (4) is fixed at both ends to the upper side of the tower section (1), the lower end of the support frame (5) is fixed to the middle of the upper side of the fixed frame (4), the through hole (6) passes through the middle of the upper side of the support frame (5), and the outer surface of the support rod (7) is slidably connected to the inner wall of the through hole (6).

4. A modular wind turbine tower according to claim 1, characterized in that: The arc-shaped frame (8) has a sliding groove (12) in the middle, and a sliding plate (13) is slidably connected to the inner wall of the sliding groove (12). A first spring (14) is fixed on the upper side of the sliding plate (13). The support frame (5) has a frame groove (15) in the middle, and through grooves (16) are opened on both sides of the frame groove (15). A stabilizing block (17) is slidably connected to the inner wall of the frame groove (15), and a second spring (18) is fixed at the lower end of the stabilizing block (17).

5. A modular wind turbine tower according to claim 4, characterized in that: The upper end of the support rod (7) is fixed to the middle of the lower side of the slide (13). The outer surface of the slide (13) is slidably connected to the inner wall of the slide groove (12). The upper end of the slide (13) is fixed to the lower end of the first spring (14). The upper end of the first spring (14) is fixed to the inner wall of the upper end of the slide groove (12).

6. A modular wind turbine tower according to claim 4, characterized in that: The lower end of the support rod (7) is fixed to the middle of the upper side of the stabilizing block (17). The outer surface of the stabilizing block (17) is slidably connected to the inner wall of the frame groove (15). The middle of the upper end of the frame groove (15) is connected to the through hole (6). The lower end of the stabilizing block (17) is fixed to the upper end of the second spring (18). The lower end of the second spring (18) is fixed to the inner wall of the lower end of the frame groove (15).

7. A modular wind turbine tower according to claim 4, characterized in that: The stabilizing block (17) is fixed with support blocks (19) on both sides. The two support blocks (19) are provided with upper grooves (20) on the opposite sides. The upper rods (21) are fixed in the middle of the two upper grooves (20). The outer surfaces of the two upper rods (21) are rotatably connected to the near ends of the two connecting frames (22). The opposite ends of the two connecting frames (22) are rotatably connected to the middle of the two lower rods (23). The two lower rods (23) are fixed with sliders (24) at both ends. The upper ends of the two sliders (24) are provided with lower grooves (25). The lower ends of the two sliders (24) are fixed with sliding blocks (26). The other ends of the two sliding blocks (26) are fixed with connecting frames (27). The other ends of the two connecting frames (27) are fixed with locking blocks (28). The fixed frame (4) is provided with limit grooves (29) on both sides. Each guide groove (30) is provided with a locking groove (31) on the lower side.

8. A modular wind turbine tower according to claim 7, characterized in that: The two support blocks (19) are fixed at their near ends to the sides of the stabilizing block (17), and the two support blocks (19) are fixed at their far ends to the two upper fixed rods (21). The outer surfaces of the two support blocks (19) are slidably connected to the inner walls of the two through slots (16). The outer surfaces of the two upper fixed rods (21) are rotatably connected to the near ends of the two connecting frames (22). The far ends of the two connecting frames (22) are rotatably connected to the middle outer surface of the two lower fixed rods (23). The two lower fixed rods (23) are fixed at their far ends to the upper ends of the two sliders (24).

9. A modular wind turbine tower according to claim 7, characterized in that: The lower ends of the two sliders (24) are fixed to the near ends of the two sliding blocks (26), the far ends of the two sliding blocks (26) are fixed to the lower ends of the two connecting frames (27), the outer surfaces of the two sliding blocks (26) are slidably connected to the inner walls of the two limiting grooves (29), the upper ends of the two connecting frames (27) are fixed to the near ends of the two locking blocks (28), the outer surfaces of the far sides of the two locking blocks (28) are in contact with the inner walls of the two locking grooves (31), and the far sides of the two locking blocks (28) are both arc-shaped.

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