Fabricated wind power tower drum and wind turbine generator

Abstract

The utility model discloses an assembly type wind power tower drum and a wind turbine generator set, and relates to the technical field of wind power equipment construction, and the assembly type wind power tower drum comprises a drum seat structure and a drum section structure; a first clamping part is formed at the top of the cylinder seat structure, the first clamping part comprises a clamping tongue extending upwards, a first anchoring opening is formed in the clamping tongue and penetrates through the clamping tongue, another first clamping part is formed at the top of each cylinder section structure, and a second clamping part is formed at the bottom of each cylinder section structure; a second anchoring opening is formed in the second clamping part and penetrates through the second clamping part from inside to outside; in any two corresponding first clamping parts and second clamping parts, the clamping tongues can penetrate through the notches to extend into the clamping grooves, and the first anchoring openings and the second anchoring openings are formed in an aligned mode, so that an anchoring block penetrates through the first anchoring openings and the second anchoring openings from inside to outside, and the first clamping parts and the second clamping parts are anchored. The assembly type wind power tower drum is high in assembly efficiency and good in assembly stability.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment construction technology, and in particular to a prefabricated wind turbine tower and wind turbine unit. Background Technology

[0002] In the field of wind power generation, the wind turbine tower, as a key supporting structure for wind turbine generators, has a crucial impact on the construction cycle and operational safety of the entire project due to its assembly efficiency and stability. Traditional wind turbine tower assembly mainly relies on on-site welding or bolting. On-site welding requires specialized equipment and skilled workers and is susceptible to environmental factors, leading to welding defects. Bolting is time-consuming and labor-intensive, especially challenging at high altitudes, resulting in low assembly efficiency. Furthermore, welding can cause localized deformation of the tower, reducing fatigue performance, while bolted connections are prone to loosening under extreme conditions, leading to poor tower assembly stability. Utility Model Content

[0003] The main purpose of this utility model is to propose a prefabricated wind turbine tower and wind turbine, which aims to solve the technical problems of low assembly efficiency and poor assembly stability in the existing wind turbine tower assembly process.

[0004] To achieve the above objectives, the present invention proposes a prefabricated wind turbine tower, which includes:

[0005] A cylindrical base structure, wherein a first snap-fit ​​portion is formed at the top of the cylindrical base structure, the first snap-fit ​​portion includes an upwardly extending snap tongue, and a first anchoring opening is formed on the snap tongue, the first anchoring opening penetrating the snap tongue from the inside to the outside;

[0006] A cylindrical segment structure is provided, wherein multiple cylindrical segments are sequentially arranged on the cylindrical base structure from bottom to top. Each cylindrical segment has a first locking portion formed at its top and a second locking portion formed at its bottom. In two adjacent cylindrical segments, each second locking portion corresponds to a first locking portion, and the first locking portion of the cylindrical base structure corresponds to the first locking portion of the adjacent cylindrical segment structure. Each second locking portion has a slot, with the slot opening facing downwards.

[0007] The second snap-fit ​​portion has a second anchoring opening, which extends through the second snap-fit ​​portion from the inside to the outside. In any two corresponding first snap-fit ​​portions and second snap-fit ​​portions, the latch can pass through the slot and extend into the slot, aligning the first anchoring opening and the second anchoring opening to form an anchoring block that passes through the first anchoring opening and the second anchoring opening from the inside to the outside, thus anchoring the first snap-fit ​​portion and the second snap-fit ​​portion.

[0008] In one embodiment, each first snap-fit ​​portion includes a plurality of upwardly protruding snap-fit ​​protrusions, which are spaced apart circumferentially along the assembled wind turbine tower. Each second snap-fit ​​portion includes a plurality of upwardly recessed snap-fit ​​recesses. In any two corresponding first and second snap-fit ​​portions, the number of snap-fit ​​protrusions and snap-fit ​​recesses is the same and they correspond one-to-one. The shape of each snap-fit ​​protrusion matches that of its corresponding snap-fit ​​recess. The snap-fit ​​protrusion can be inserted into the corresponding snap-fit ​​recess. Each snap-fit ​​protrusion is connected to an upwardly extending snap tongue. The inner wall of each snap-fit ​​recess forms the snap groove.

[0009] In one embodiment, each of the snap-fit ​​protrusions is connected to an upwardly extending horizontal plate at its top, and each of the snap-fit ​​protrusions is connected to two vertical plates at both ends along the circumference of the prefabricated wind turbine tower. Each of the vertical plates extends along the circumference of the prefabricated wind turbine tower in a direction away from the snap-fit ​​protrusion. The horizontal plate is connected to the two vertical plates at both ends along the circumference of the prefabricated wind turbine tower to form the snap tongue. The top wall of each snap-fit ​​recess is recessed upward to form a horizontal groove. Each snap-fit ​​recess is recessed along the two side walls along the circumference of the prefabricated wind turbine tower in a direction away from the snap-fit ​​recess to form two vertical grooves. The horizontal plate can be inserted into the horizontal groove. The horizontal groove communicates with the two vertical grooves at both ends along the circumference of the prefabricated wind turbine tower to form the snap groove. The two vertical plates can be inserted into the two vertical grooves respectively. The horizontal plate has a first anchoring opening, and the second snap-fit ​​part has a second anchoring opening corresponding to the position of the horizontal groove.

[0010] In one embodiment, in each of the latches, the first anchoring opening is provided on both of the vertical plates, and the second anchoring opening is provided on both of the two vertical slots corresponding to the positions of the second latching portion.

[0011] In one embodiment, the prefabricated wind turbine tower further includes an anchoring structure. An anchoring structure is provided in the base structure and each of the tube segments corresponding to the positions of the latches. The anchoring structure includes an anchoring plate. Three anchoring blocks are provided on the anchoring plate corresponding to the three first anchoring ports on each of the latches. The anchoring plate abuts against the inner side of the second latching portion and the latching protrusion.

[0012] In one embodiment, each of the first snap-fit ​​portions includes two snap-fit ​​protrusions arranged opposite to each other. The latches in the cylinder seat structure and each of the cylinder segment structures that are connected to the two snap-fit ​​protrusions are respectively provided with two anchoring structures. A support rod is connected between the anchor plates in the two anchoring structures.

[0013] In one embodiment, each of the slots into which the latch is inserted is further filled with concrete.

[0014] In one embodiment, the outer and inner walls of the latch are provided with a plurality of first anchoring protrusions spaced apart.

[0015] In one embodiment, the inner wall of the slot is provided with a plurality of spaced-apart second anchoring protrusions.

[0016] The technical solution of this utility model only requires quick positioning and pre-fixing of the first snap-fit ​​part and its corresponding second snap-fit ​​part, followed by fixing the first snap-fit ​​part and the second snap-fit ​​part with the anchor block to complete a firm connection, which greatly shortens the assembly time and improves the overall assembly efficiency. Furthermore, the cooperation between the latch of the first snap-fit ​​part and the slot of the second snap-fit ​​part allows for preliminary assembly of the first and second snap-fit ​​parts, avoiding significant shaking and misalignment of the base structure and its adjacent sections, as well as between sections themselves, during the assembly process. On the other hand, the snap-fit ​​cooperation between the anchor block and the first and second anchor openings further strengthens the assembly's firmness, enabling the various components to form a tight, integrated structure, improving the assembly stability of the wind turbine tower. Additionally, traditional welding methods easily lead to uneven heating of the tower, causing deformation and affecting the overall performance and fatigue life of the tower. The prefabricated wind turbine tower adopts a non-welding connection method, which effectively avoids the problem of local deformation caused by welding, helps to maintain the integrity and uniformity of the tower structure, improves its fatigue resistance, and extends the service life of the wind turbine tower. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the base structure and the section structure of the assembled wind turbine tower provided by this utility model;

[0019] Figure 2 A schematic diagram of the anchoring structure in one embodiment of the prefabricated wind turbine tower provided by this utility model;

[0020] Figure 3 A schematic diagram of the slot structure in one embodiment of the prefabricated wind turbine tower provided by this utility model;

[0021] Figure 4 A schematic diagram of the latch structure in one embodiment of the assembled wind turbine tower provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 10. Cylinder base structure; 11. First locking part; 111. Locking tongue; 1111. Horizontal plate; 1112. Vertical plate; 1113. First anchoring protrusion; 112. First anchoring opening; 113. Locking protrusion; 20. Cylinder section structure; 21. Second locking part; 211. Locking groove; 2111. Horizontal groove; 2112. Vertical groove; 2113. Second anchoring protrusion; 212. Second anchoring opening; 213. Locking recess; 30. Anchoring structure; 31. Anchoring plate; 32. Anchoring block; 33. Support rod.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] In the field of wind power generation, the wind turbine tower, as a key supporting structure for wind turbine generators, has a crucial impact on the construction cycle and operational safety of the entire project due to its assembly efficiency and stability. Traditional wind turbine tower assembly mainly relies on on-site welding or bolting. On-site welding requires specialized equipment and skilled workers and is susceptible to environmental factors, leading to welding defects. Bolting is time-consuming and labor-intensive, especially challenging at high altitudes, resulting in low assembly efficiency. Furthermore, welding can cause localized deformation of the tower, reducing fatigue performance, while bolted connections are prone to loosening under extreme conditions, leading to poor tower assembly stability.

[0029] This utility model proposes a prefabricated wind turbine tower.

[0030] Please see Figures 1 to 4 In one embodiment of this utility model, the assembled wind turbine tower includes a base structure 10 and a section structure 20. The top of the base structure 10 has a first engaging portion 11, which includes an upwardly extending latch 111. A first anchoring opening 112 is formed on the latch 111, penetrating from the inside to the outside through the latch 111. Multiple section structures 20 are sequentially arranged on the base structure 10 from bottom to top. Each section structure 20 has another first engaging portion 11 at its top and a second engaging portion 21 at its bottom. In two adjacent section structures 20, each second engaging portion 21 corresponds to a first engaging portion 11, and the base structure... The first locking part 11 of 10 and the first locking part 11 of the adjacent cylindrical section structure 20 are correspondingly provided; each second locking part 21 forms a locking groove 211, and the groove opening of each locking groove 211 faces downward; the second locking part 21 has a second anchoring opening 212, and the second anchoring opening 212 penetrates the second locking part 21 from the inside to the outside; in any two corresponding first locking parts 11 and second locking parts 21, the latch 111 can pass through the groove opening and extend into the locking groove 211, and the first anchoring opening 112 and the second anchoring opening 212 are aligned to form an anchoring block 32 that passes through the first anchoring opening 112 and the second anchoring opening 212 from the inside to the outside to anchor the first locking part 11 and the second locking part 21.

[0031] The prefabricated wind turbine tower provided by this utility model mainly consists of a base structure 10 and multiple segment structures 20. The base structure 10 is located at the bottom of the entire wind turbine tower and serves as the basic support. A first locking part 11 is provided on its top. The segment structures 20 are stacked sequentially on the base structure 10 from bottom to top. Each segment structure 20 also has a first locking part 11 on its top and a corresponding second locking part 21 on its bottom, thereby realizing the mutual assembly between adjacent segment structures 20 and between the base structure 10 and its adjacent segment structures 20. The first locking part 11 includes an upwardly extending latch 111, on which a first anchoring opening 112 is formed, which penetrates the latch 111 from the inside to the outside. When assembling adjacent cylindrical sections 20 and between the cylinder seat structure 10 and its adjacent cylindrical section 20, the latch 111 of the first latching part 11 extends through the slot of the corresponding second latching part 21 into the slot 211, serving as a preliminary positioning and connection. In any two corresponding first latching parts 11 and second latching parts 21, the second latching part 21 has a second anchoring port 212 corresponding to the first anchoring port 112, and the second anchoring port 212 communicates with the slot 211. The anchoring block 32 can pass through the second anchoring port 212 and be inserted into the first anchoring port 112 inserted into the latch 111 of the slot 211, thereby engaging with the first anchoring port 112 and the second anchoring port 212 to connect the first connecting part and the second connecting part, thereby realizing the mutual connection between adjacent cylindrical sections 20 and between the cylindrical section structure 20 and the cylinder seat structure 10.

[0032] The prefabricated wind turbine tower provided by this utility model only requires quick positioning and pre-fixing of the first snap-fit ​​part 11 and its corresponding second snap-fit ​​part 21 during the assembly process. Then, the first snap-fit ​​part 11 and the second snap-fit ​​part 21 are fixed by the anchor block 32, thus completing a firm connection, greatly shortening the assembly time and improving the overall assembly efficiency. Furthermore, the cooperation between the latch 111 of the first snap-fit ​​part 11 and the slot 211 of the second snap-fit ​​part 21 allows for preliminary assembly of the first snap-fit ​​part 11 and the second snap-fit ​​part 21, preventing significant shaking and misalignment of the tower base structure 10 and its adjacent tower section structure 20 during assembly. On the other hand, the snap-fit ​​cooperation between the anchor block 32 and the first anchoring port 112 and the second anchoring port 212 further strengthens the assembly's firmness, enabling the various components to form a tight integral structure and improving the assembly stability of the wind turbine tower. Furthermore, traditional welding methods can easily lead to uneven heating and deformation of the tower, which in turn affects the overall performance and fatigue life of the tower. This prefabricated wind turbine tower, however, uses a non-welding connection method, effectively avoiding the localized deformation problems caused by welding. This helps maintain the integrity and uniformity of the tower structure, improves its fatigue resistance, and extends the service life of the wind turbine tower.

[0033] In one embodiment, each first snap-fit ​​portion 11 includes a plurality of upwardly protruding snap-fit ​​protrusions 113, which are spaced apart circumferentially along the assembled wind turbine tower. Each second snap-fit ​​portion 21 includes a plurality of upwardly recessed snap-fit ​​recesses 213. In any two corresponding first snap-fit ​​portions 11 and second snap-fit ​​portions 21, the number of snap-fit ​​protrusions 113 and snap-fit ​​recesses 213 are the same and correspond one-to-one. The shape of each snap-fit ​​protrusion 113 matches that of its corresponding snap-fit ​​recess 213. The snap-fit ​​protrusion 113 can be inserted into the corresponding snap-fit ​​recess 213. Each snap-fit ​​protrusion 113 is connected to an upwardly extending snap tongue 111. The inner wall of each snap-fit ​​recess 213 forms a snap groove 211.

[0034] Specifically, such as Figure 1As shown, each first snap-fit ​​portion 11 includes multiple snap-fit ​​protrusions 113, which are spaced apart circumferentially along the prefabricated wind turbine tower, allowing multiple connection points to be formed circumferentially, enhancing the balance and stability of the connection. Correspondingly, each second snap-fit ​​portion 21 includes multiple upwardly recessed snap-fit ​​recesses 213, also spaced apart circumferentially, to mate with the snap-fit ​​protrusions 113 of the first snap-fit ​​portion 11. In actual assembly, the number of snap-fit ​​protrusions 113 and snap-fit ​​recesses 213 in any two corresponding first snap-fit ​​portions 11 and second snap-fit ​​portions 21 are consistent and correspond one-to-one, ensuring that each snap-fit ​​protrusion 113 has a corresponding snap-fit ​​recess 213 to mate with, and that the shape of each snap-fit ​​protrusion 113 matches its corresponding snap-fit ​​recess 213, allowing the snap-fit ​​protrusion 113 to be smoothly inserted into the corresponding snap-fit ​​recess 213, achieving initial positioning and connection. Each snap-fit ​​protrusion 113 is connected to a snap tongue 111 extending along its extension direction, while the inner wall of each snap-fit ​​recess 213 is recessed in a direction away from the snap-fit ​​recess 213 to form a snap groove 211. When the snap-fit ​​protrusion 113 is inserted into the snap-fit ​​recess 213, the snap tongue 111 is naturally positioned directly below the snap groove 211, providing a basic structure for the subsequent assembly and fixation of the anchor block 32. The final secure assembly is completed by the snap-fit ​​engagement of the anchor block 32 with the first anchoring port 112 on the snap tongue 111 and the second anchoring port 212 on the second snap-fit ​​part 21. By providing multiple snap-fit ​​protrusions 113 in the first snap-fit ​​portion 11, spaced circumferentially, and corresponding one-to-one with multiple snap-fit ​​recesses 213 in the second snap-fit ​​portion 21, and matching their shapes, multiple connection points are formed in the circumferential direction of the prefabricated wind turbine tower. Compared to a single connection point, this multi-point connection method can more evenly distribute the force, enhance the stability and reliability of the connection, effectively avoid connection failure caused by excessive local stress, and ensure that the wind turbine tower can operate stably under complex working conditions. Furthermore, the snap-fit ​​protrusions 113 are connected to snap tongues 111 extending along their extension direction, and the inner wall of the snap-fit ​​recesses 213 forms a groove 211 corresponding to the snap tongues 111. This structural design creates a "mortise and tenon"-like structure at the connection, increasing the structural strength and shear resistance of the connection part. After the anchor block 32 engages with the first anchoring port 112 on the latch 111 and the second anchoring port 212 on the second engaging part 21, the various components are further tightly fixed together to form a more integrated structure, which improves the overall wind and earthquake resistance and other mechanical properties of the wind turbine tower and extends the service life of the wind turbine tower.

[0035] In one embodiment, each snap-fit ​​protrusion 113 has an upwardly extending horizontal plate 1111 connected to its top, and each snap-fit ​​protrusion 113 has two vertical plates 1112 connected to both ends of the prefabricated wind turbine tower along its circumferential direction. Each vertical plate 1112 extends away from the snap-fit ​​protrusion 113 along its circumferential direction. The horizontal plate 1111 connects to the two vertical plates 1112 at both ends of the prefabricated wind turbine tower to form a latch 111. The top wall of each snap-fit ​​recess 213 is recessed upwards to form a horizontal groove 2111. Each snap-fit ​​recess 213 extends away from the snap-fit ​​protrusion 113 along its circumferential direction. The two side walls of the wind turbine tower are recessed in the circumferential direction of the assembled wind turbine tower, respectively, in the direction away from the snap-fit ​​recess 213 to form two vertical grooves 2112. The horizontal plate 1111 can be inserted into the horizontal groove 2111. The two ends of the horizontal groove 2111 along the circumferential direction of the assembled wind turbine tower are respectively connected to the two vertical grooves 2112 to form a snap-fit ​​groove 211. The two vertical plates 1112 can be inserted into the two vertical grooves 2112 respectively. The horizontal plate 1111 is provided with a first anchoring port 112. The second snap-fit ​​part 21 is provided with a second anchoring port 212 corresponding to the position of the horizontal groove 2111.

[0036] Specifically, such as Figure 1 As shown, the vertical plate 1112 and the two horizontal plates 1111 are connected to form a U-shaped structure. During assembly, the horizontal plates 1111 mainly serve as vertical guides and connectors, while the two vertical plates 1112 provide constraints and support on both circumferential sides. When the latch 111 is inserted into the slot 211, the horizontal plates 1111 enter the horizontal slots 2111, and the vertical plates 1112 enter the vertical slots 2112, forming multi-dimensional limiting to ensure the accuracy and stability of the connection. At the same time, when subjected to forces in different directions, the U-shaped structure can effectively disperse stress through its own geometry, improving the stability of the assembly and further ensuring the reliability of the overall structure of the wind turbine tower.

[0037] In one embodiment, in each latch 111, a first anchoring port 112 is provided on each of the two vertical plates 1112, and a second anchoring port 21 is provided on each of the two vertical grooves 2112.

[0038] Specifically, such as Figure 1 As shown, a first anchoring port 112 is provided on the horizontal plate 1111 and the two vertical plates 1112 of the latch 111, and three second anchoring ports 212 are provided on the second latching part 21 corresponding to the three first anchoring ports 112 on each latch 111. By inserting the three anchoring blocks 32 into the three corresponding first anchoring ports 112 and second anchoring ports 212, the latch 111 and the slot 211 can be more firmly connected, thereby improving the reliability of the assembly between adjacent cylindrical sections 20 and between the cylindrical section structure 20 and the cylindrical base structure 10.

[0039] In one embodiment, the prefabricated wind turbine tower also includes an anchoring structure 30. An anchoring structure 30 is provided in the base structure 10 and each section structure 20 at the position corresponding to each latch 111. The anchoring structure 30 includes an anchoring plate 31. Three anchoring blocks 32 are respectively provided on the anchoring plate 31 corresponding to the three first anchoring ports 112 on each latch 111. The anchoring plate 31 abuts against the inner side of the second snap-fit ​​part 21 and the snap-fit ​​protrusion 113.

[0040] Specifically, such as Figure 2 As shown, in any two corresponding first latching portions 11 and second latching portions 21 of the prefabricated wind turbine tower, an anchoring structure 30 is provided for each latch tongue 111. The anchoring structure 30 mainly includes an anchoring plate 31 and an anchoring block 32. The shape and size of the anchoring plate 31 are adapted to the inner shape of the second latching portion 21. During assembly, the anchoring plate 31 tightly abuts against the inner side of the second latching portion 21, providing support and fixation. On the anchoring plate 31, three anchoring blocks 32 are respectively provided for the three first anchoring openings 112 on each latch tongue 111. The shape and size of the anchor block 32 match the first anchoring port 112 and the second anchoring port 212. During assembly, the anchor block 32 passes sequentially through the second anchoring port 212 on the second snap-fit ​​part 21 and is accurately inserted into the three first anchoring ports 112 on the latch 111, engaging with each first anchoring port 112 to firmly fix the latch 111 in the slot 211. The three anchor blocks 32 are connected into a whole by the anchor plate 31, which tightly abuts against the inner side of the second snap-fit ​​part 21, making the entire connection part form a whole force-bearing system. This enhances the integrity and rigidity of the connection part, which is beneficial to improving the wind resistance, earthquake resistance and other mechanical properties of the wind turbine tower, enabling it to better resist the impact of various external forces and extend the service life of the wind turbine tower. Furthermore, integrating the three anchor blocks 32 into the anchor plate 31 allows the three anchor blocks 32 to be inserted into the corresponding three first anchoring ports 112 and three second anchoring ports 212 at one time, further improving the assembly efficiency.

[0041] In one embodiment, each first snap-fit ​​portion 11 includes two oppositely arranged snap-fit ​​protrusions 113. The snap tongues 111 in the cylinder seat structure 10 and each cylinder section structure 20 that are connected to the two snap-fit ​​protrusions 113 are respectively provided with two anchoring structures 30. A support rod 33 is connected between the anchoring plates 31 in the two anchoring structures 30.

[0042] Specifically, such as Figure 1 and Figure 2The first snap-fit ​​part 11 includes two oppositely arranged snap-fit ​​protrusions 113, and therefore two anchoring structures 30 are correspondingly provided. A support rod 33 is connected between the anchoring plates 31 on the two anchoring structures 30. The support rod 33 can make the two anchoring plates 31 tightly abut against the inner part of the second snap-fit ​​part 21, thereby ensuring that the anchoring blocks 32 on the anchoring plates 31 are always inserted into their corresponding first anchoring port 112 and second anchoring port 212, thereby further improving the reliability of the assembly between adjacent cylindrical sections 20 and between the cylindrical section structure 20 and the cylindrical seat structure 10.

[0043] In one embodiment, each slot 211 where the latch 111 is inserted is further filled with concrete. After the concrete is filled into the slot 211 where the latch 111 is inserted, the slot 211 and the latch 111 can be further connected to form a whole, which greatly enhances the strength and rigidity of the slot 211. Due to the filling of concrete, the stress distribution of the slot 211 can be more uniform, reducing local stress concentration and improving the reliability of the assembly between adjacent cylinder sections 20 and between the cylinder section structure 20 and the cylinder base structure 10.

[0044] In one embodiment, the outer and inner walls of the latch 111 are provided with a plurality of first anchoring protrusions spaced apart.

[0045] Specifically, such as Figure 4 As shown, the interlocking action between the first anchoring protrusion 1113 and the concrete can significantly enhance the connection strength between the latch 111 and the slot 211. Especially when subjected to tensile and shear loads, it can effectively prevent the latch 111 from being pulled out or slipping from the slot 211, thus improving the integrity and reliability of the connection.

[0046] In one embodiment, the inner wall of the slot 211 is provided with a plurality of spaced second anchoring protrusions 2113.

[0047] Specifically, such as Figure 3 The interlocking action between the second anchoring protrusion 2113 and the concrete can significantly enhance the connection strength between the slot 211 and the concrete. Especially when subjected to tensile and shear loads, it can effectively prevent relative slippage or separation between the concrete and the inner wall of the slot 211, thus improving the integrity and reliability of the connection.

[0048] This utility model also proposes a wind turbine unit that uses a prefabricated wind turbine tower. The specific structure of the prefabricated wind turbine tower is as described in the above embodiments. Since this wind turbine unit adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0049] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

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