Lattice tower

Abstract

This application provides a lattice-type tower, comprising multiple tower units arranged along the height direction. Each tower unit includes multiple spaced-apart support columns and connecting components connecting the support columns. Each support column has upper and lower ends along the height direction. Support columns of adjacent upper and lower tower units are grouped and connected accordingly to form multiple support column groups. In at least one support column group, matching positioning grooves and positioning plates are provided on the outer wall surfaces of the upper and lower ends of the lower support columns. The positioning plates can be inserted into the positioning grooves along the height direction to allow two support columns of the support column group to align. The lattice-type tower provided by this application can reduce the installation difficulty, shorten operation time, and improve installation efficiency while ensuring the accuracy of the connection between support columns.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a lattice tower. Background Technology

[0002] As wind turbine blades become increasingly larger and single-unit capacity continues to grow, large-capacity, high-tower onshore wind turbines are becoming an inevitable trend in the future development of the wind power industry. Lattice towers can better meet the requirements of large wind turbines and high towers, and are gradually becoming a new choice in the wind power field.

[0003] Lattice towers are mainly composed of support columns, diagonal braces, and crossbars. After being manufactured in the factory, these components are shipped to the installation site. During installation, the upper support columns are first connected to the lower support columns, and then the diagonal braces and crossbars are connected between the upper support columns, thus assembling a multi-layered tower structure. To improve assembly efficiency, existing lattice towers often incorporate sleeves embedded in the lower support columns. The connection between the support columns is achieved by inserting the inner tube of the upper support column into the sleeve of the lower support column.

[0004] However, on the one hand, to ensure installation accuracy, the assembly gap between the sleeve and the inner tube is only 1mm, making the connection difficult; on the other hand, the embedded connection method of the sleeve is not conducive to real-time observation and adjustment by construction personnel, further increasing the connection difficulty and reducing installation efficiency. Moreover, when installing each tower unit as a whole in a modular fashion, it is necessary to align the sleeves of all support columns simultaneously, which places extremely high demands on hoisting accuracy, resulting in increased hoisting time, increased workload for construction personnel, and increased time spent working at heights, leading to very low installation efficiency and poor safety. Utility Model Content

[0005] This application provides a lattice tower that can reduce the installation difficulty of the lattice tower, shorten the operation time, and improve the installation efficiency while ensuring the accuracy of the connection between the support columns.

[0006] This application provides a lattice-type tower, which includes multiple tower units arranged along the height direction. Each tower unit includes multiple spaced-apart support columns and connecting components connecting the support columns. Each support column has upper and lower ends along the height direction. The support columns of adjacent upper and lower tower units are connected in groups to form multiple support column groups. In at least one support column group, the outer wall surface of the upper end of the lower support column and the outer wall surface of the lower support column are provided with matching positioning grooves and positioning plates. The positioning plates can be inserted into the positioning grooves along the height direction to make the two support columns of the support column group connect with each other.

[0007] In some embodiments of this application, multiple support columns and connecting components of each tower unit can be combined into a whole, and in adjacent upper and lower tower units, the upper tower unit is connected to the lower tower unit as a whole.

[0008] In some embodiments of this application, in at least one support column group of adjacent upper and lower tower units, a positioning plate is provided on the outer wall surface of the upper end of each lower support column, and a positioning groove is provided on the outer wall surface of the lower end of each upper support column; or, a positioning groove is provided on the outer wall surface of the upper end of each lower support column, and a positioning plate is provided on the outer wall surface of the lower end of each upper support column.

[0009] In some embodiments of this application, the connecting component and multiple support columns enclose the tower cavity, and the positioning groove and positioning plate are disposed on the outer wall surface of the support columns located outside the tower cavity.

[0010] In some embodiments of this application, at least one of the positioning plate and the inner side of the positioning groove is provided with a first guide slope. The first guide slope is inclined relative to the height direction and is used to guide the positioning plate to be inserted into the positioning groove along the height direction.

[0011] In some embodiments of this application, the support column includes a column body and flanges located at the upper and lower ends of the column body, and the two support columns of each support column group are connected to each other through their respective flanges. In at least one support column group of adjacent upper and lower tower units, the positioning plate and the positioning groove mate on the outer side of the radial edge of the flange of the support column group.

[0012] In some embodiments of this application, the support column assembly includes a first branch forming a positioning plate. The first branch is disposed outside the radial edge of a flange of one support column and extends at least in the height direction to the mating surface of the flange of the other support column. The support column assembly also includes two opposing second branches forming a positioning groove between them. The second branches are disposed outside the radial edge of the flange of the other support column and extend in the height direction, extending at least to the opposing surfaces of the mating surfaces of the flanges of one support column when the two support columns are mated.

[0013] In some embodiments of this application, the support column assembly further includes a third branch, which is plate-shaped, at least partially located outside the radial edge of the flange of another support column, and is disposed opposite to the first branch in the height direction; the second branch is disposed on opposite sides of the third branch, and together with the third branch, forms a positioning groove.

[0014] In some embodiments of this application, the third branch is connected to the outer wall of the body of another support column and extends beyond the radial edge of the flange; and / or, the support column assembly further includes a fourth branch, which is plate-shaped and connects to the outer wall of the body of one support column and the first branch.

[0015] In some embodiments of this application, the flanges of the support column assembly are connected by bolts and threaded holes, and the difference between the width of the positioning groove and the thickness of the positioning plate is related to the fitting clearance of the bolts and threaded holes.

[0016] In some embodiments of this application, a second guide slope is provided on one side of the column body of the two second branches near the other support column. The second guide slope is inclined relative to the height direction and is used to guide the two support columns of the support column group to connect radially.

[0017] In some embodiments of this application, the support column includes an inner steel pipe, an outer steel pipe, and a concrete interlayer between the inner and outer steel pipes. The lattice tower also includes a sealant layer, which is sealed between two support columns of at least one support column group. The sealant layer includes a first sealing portion and a second sealing portion. The first sealing portion is disposed on the concrete interlayer, and the second sealing portion is disposed between the first sealing portion and the inner steel pipe. The fluidity of the second sealing portion is less than that of the first sealing portion.

[0018] In some embodiments of this application, a mounting frame is also provided on the outer wall surface of the upper end of at least one support column of the lattice tower. The lattice tower also includes a working platform. The working platform is arc-shaped and includes a platform body and a hanging column connected to the platform body. The hanging column is detachably mounted on the mounting frame.

[0019] In some embodiments of this application, a first connecting hole is provided through the mounting frame, a second connecting hole is provided on the hanging column, and the hanging column also includes a pin, which passes through the first connecting hole and the second connecting hole in sequence, and can restrict the degree of freedom of movement of the hanging column detached from the mounting frame.

[0020] In some embodiments of this application, multiple mounting frames are provided on the outer wall of the support column, and the multiple mounting frames are spaced apart along the circumference of the support column. The working platform includes multiple hanging columns, and each hanging column can be detachably mounted on one of the mounting frames.

[0021] In some embodiments of this application, the hanging column has rotational freedom relative to the mounting frame, and the extension direction of the rotation axis intersects the height direction. The work platform also includes an adjusting member located on one side of the hanging column along the height direction. The adjusting member has a fixed end and a free end. The fixed end is connected to the platform body, and the free end protrudes relative to the platform body toward the supporting column and abuts against the outer wall surface of the supporting column. The protrusion distance of the free end relative to the platform body is adjustable.

[0022] The lattice-type tower provided in this application includes multiple tower units arranged along the height direction, with the support columns of adjacent tower units connected in groups. A support column group is defined as a support column group consisting of a support column of an upper tower unit and a support column of a lower tower unit that docks with it. This application uses matching positioning grooves and positioning plates on the outer wall surfaces of the upper and lower support columns within the same support column group. This method of docking the support columns using positioning grooves and positioning plates on their outer wall surfaces allows construction personnel to directly observe the docking of the support columns between the upper and lower tower units during installation. They can also fine-tune the docking position based on the docking status and control the positioning plate to be inserted into the positioning groove along the height direction. This ensures accurate docking between support columns while reducing installation difficulty, shortening operation time, and improving installation efficiency. Attached Figure Description

[0023] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0024] Figure 1 The present application provides structural schematic diagrams of lattice towers according to some embodiments; Figure 2 It shows Figure 1 Enlarged view of point A in the middle; Figure 3 It shows Figure 1 Enlarged view of point B in the middle; Figure 4 It shows Figure 1 Enlarged view of point C in the middle; Figure 5 A front view of the outer wall surface of the lower end of a support column provided in some embodiments of this application is shown; Figure 6 The diagram shows a front view of the outer wall surface of the upper end of a support column provided in some embodiments of this application; Figure 7 This application shows a partially enlarged view of the joint of the support column assembly provided in some embodiments; Figure 8 A side view of the outer wall surface of the lower end of a support column provided in some embodiments of this application is shown; Figure 9 A side view of the outer wall surface of the upper end of a support column provided in some embodiments of this application is shown; Figure 10 The present application shows a schematic diagram of the structure of a tower unit provided in some embodiments; Figure 11 It shows Figure 10Enlarged view of point D in the middle; Figure 12 This application shows a schematic diagram of the working platform of a lattice tower provided in some embodiments; Figure 13 This application shows a schematic diagram illustrating the structure of the mounting post and mounting frame in some embodiments. Figure 14 It shows Figure 12 Enlarged view at point E in the middle; Figure 15 A top view of the working platform provided in some embodiments of this application is shown; Figure 16 It shows Figure 12 Enlarged view at point F; Figure 17 It shows Figure 12 A magnified view of point G in the middle.

[0025] Explanation of reference numerals in the attached figures: 100-Lattice tower; 10-Tower unit; 1-Support column; 11-Positioning groove; 111-Second branch; 112-Third branch; 12-Positioning plate; 121-First branch; 122-Fourth branch; 13-Column; 14-Flange; 15-Inner steel pipe; 16-Hanging frame; 17-Climbing nail structure; 2-Connecting component; 21-First crossbar; 22-Second crossbar; 23-Third crossbar; 24-Diagonal brace; 3-Sealant layer; 31-First sealing part; 32-Second sealing part; 4-Working platform; 41-Platform body; 411-Arched footboard; 412-Platform frame; 413-Guard railing; 414-Safety door; 42-Hanging post; 421-Pin ring; 422-Pin; 43-Lifting lug; 44-Adjusting component; 441-Fixed end; 442-Free end; 443-Connector; P-support column group; S1 - First guide ramp; S2 - Butt joint surface; S3 - Flange surface; S4 - Second guide ramp; Z-Height Direction. Detailed Implementation

[0026] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0027] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] To better understand the technical solution of this application, the lattice tower of the embodiment of this application will be described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1 and Figure 2 , Figure 1 The present application shows a schematic diagram of the structure of a lattice tower 100 provided in some embodiments. Figure 2 It shows Figure 1 Enlarged view of point A in the middle.

[0031] This application provides a lattice-type tower 100, which includes multi-layer tower units 10 arranged along the height direction Z. Each tower unit 10 includes multiple spaced-apart support columns 1 and connecting components 2 connecting the multiple support columns 1. The support columns 1 have upper and lower ends along the height direction Z. The support columns 1 of adjacent upper and lower tower units 10 are connected in groups to form multiple support column groups P. In at least one support column group P, the outer wall surface of the upper end of the lower support column 1 and the outer wall surface of the lower end of the upper support column 1 are provided with matching positioning grooves 11 and positioning plates 12. The positioning plates 12 can be inserted into the positioning grooves 11 along the height direction Z so that the two support columns 1 of the support column group P are connected to each other.

[0032] The implementation scheme of this application can be applied to the installation of lattice tower 100. The lattice tower 100 can be used to support wind turbine generators or other types of structures. The application of the lattice tower 100 is not specifically limited in this application.

[0033] The lattice-type tower 100 in this embodiment includes multiple tower units 10 arranged along the height direction Z, with each support column 1 of adjacent tower units 10 connected in a corresponding group. A support column 1 of the upper tower unit 10 and a support column 1 of the lower tower unit 10 used for docking with it are defined as a support column group P. This application provides matching positioning grooves 11 and positioning plates 12 on the outer wall surfaces of the upper and lower ends of the support columns 1 in the same support column group P. That is, by using the positioning grooves 11 and positioning plates 12 to dock on the outer wall surfaces of the support columns 1, construction personnel can directly observe the docking of the support columns 1 of the upper and lower tower units 10 during the installation of the lattice-type tower 100. They can also fine-tune the docking position based on the docking situation and control the positioning plate 12 to be inserted into the positioning groove 11 along the height direction Z. This ensures the accuracy of the docking between the support columns 1 while reducing installation difficulty, shortening operation time, and improving installation efficiency. In addition, the fitting clearance between the positioning plate 12 and the positioning groove 11 is wider than the fitting clearance between the sleeve and the inner tube. For example, guide slopes can also be provided on the positioning plate 12 and the positioning groove 11 to further reduce the difficulty of docking.

[0034] Support column 1 is a key load-bearing component of the lattice tower 100, mainly used to bear the load in the height direction Z and provide vertical support for the entire lattice tower 100.

[0035] Optionally, the support columns 1 can extend along the height direction Z, and the support columns 1 of each tower unit 10 are parallel to each other, that is, the cross-sectional dimensions of each tower unit 10 are the same, and the lattice tower 100 can be a constant cross-section tower; or, the support columns 1 can also be inclined relative to the height direction Z, with the lower ends of each support column 1 of the tower unit 10 being far apart from each other, and the upper ends of each support column 1 being close together towards each other, that is, the cross-sectional dimensions of each tower unit 10 are different, and the lattice tower 100 can be a variable cross-section tower.

[0036] Optionally, the center-to-center line of multiple spaced-apart support columns 1 can be a polygon, meaning the cross-sectional profile of each tower unit 10 can be a polygon. When there are three support columns 1, the center-to-center line of the three support columns 1 can be a triangle, such as an equilateral triangle. When there are four support columns 1, the center-to-center line of the four support columns 1 can be a rectangle, such as a square, to improve the structural stability of the lattice tower 100. Of course, the number of support columns 1 can also be five, six, or even more; this application does not specifically limit this.

[0037] Taking a configuration of four support columns 1 as an example, the four support columns 1 of the lower tower unit 10 and the four support columns 1 of the upper tower unit 10 are connected in groups to form four support column groups P. Only some of the support columns 1 in each support column group P can be connected via positioning grooves 11 and positioning plates 12, or all support columns 1 in each support column group P can be connected via positioning grooves 11 and positioning plates 12 to further improve the accuracy of the connection between the support columns 1.

[0038] The outer wall surfaces of the upper end of the lower support column 1 and the lower end of the upper support column 1 in the support column group P are provided with matching positioning grooves 11 and positioning plates 12. Alternatively, the positioning groove 11 can be located on the upper outer wall surface of the lower support column 1, and the matching positioning plate 12 on the lower outer wall surface of the upper support column 1; or the positioning plate 12 can be located on the upper outer wall surface of the lower support column 1, and the matching positioning groove 11 on the lower outer wall surface of the upper support column 1. This can be adjusted according to actual needs. Multiple sets of positioning plates 12 and positioning grooves 11 can be provided on the two support columns of the same support column group P. For example, but not limited to, the outer wall surface of the upper end of the lower support column 1 can have two positioning grooves 11, and the outer wall surface of the lower end of the upper support column 1 can have two matching positioning plates 12.

[0039] The positioning groove 11 and the positioning plate 12 are compatible, meaning that the positioning groove 11 and the positioning plate 12 are compatible with each other in terms of angles and structural parameters, so that the positioning plate 12 can be inserted and fitted into the positioning groove 11, realizing the accurate docking of the two support columns 1 of the support column group P. The positioning plate 12 and the positioning groove 11 have a simple structure, are easy to manufacture and assemble, and are easy to inspect for quality, which helps to improve the docking accuracy.

[0040] The connecting component 2 is used to firmly connect multiple support columns 1 together. The connecting component 2 can not only enhance the connection strength between support columns 1, but also effectively transmit horizontal loads and torques, so that the lattice tower 100 can remain stable under various complex external forces.

[0041] In some optional embodiments, the connecting component 2 includes a first crossbar 21, which connects two adjacent support columns 1 in a horizontal direction. The first crossbar 21 can be connected to the upper end of the two adjacent support columns 1 or to the lower end of the two adjacent support columns 1. In some embodiments, the first crossbar 21 and the support columns 1 can be connected by welding or bolts.

[0042] Optionally, the connecting assembly 2 further includes a second crossbar 22, which is located in the same plane as the first crossbar 21, and the arrangement direction of the second crossbar 22 forms an angle with the arrangement direction of the first crossbar 21. The second crossbar 22 connects the two first crossbars 21, thereby forming a transverse support grid and further improving the structural stability of the tower unit 10. In some non-limiting embodiments, the second crossbar 22 can be connected to the middle of the first crossbar 21, and the second crossbar 22 and the first crossbar 21 can be connected by welding or bolts.

[0043] Optionally, the connecting assembly 2 may further include a third crossbar 23, which lies in the same plane as the second crossbar 22 and the first crossbar 21, and the arrangement direction of the third crossbar 23 forms an angle with the arrangement direction of the second crossbar 22. The third crossbar 23 connects the two second crossbars 22 to further improve the structural stability of the tower unit 10. In some embodiments, the third crossbar 23 and the second crossbar 22 may be connected by welding or bolts.

[0044] In some optional embodiments, the connecting assembly 2 further includes diagonal bracing rods 24. Two diagonal bracing rods 24 are intersecting between two adjacent support columns 1 of the tower unit 10. Each diagonal bracing rod 24 connects the upper end of one support column 1 and the lower end of the other support column 1, thereby improving the overall deformation resistance of the lattice tower 100, and improving the reliability and lifespan of the lattice tower 100.

[0045] Alternatively, the diagonal brace 24 can be connected to the support column 1 by welding or bolting.

[0046] Please see Figure 1 and Figure 2 In some alternative embodiments, the multiple support columns 1 and connecting components 2 of each tower unit 10 can be combined into a whole, and in adjacent upper and lower tower units 10, the upper tower unit 10 is connected to the lower tower unit 10 as a whole.

[0047] The multiple support columns 1 and connecting components 2 of each tower unit 10 can be combined into a whole, meaning that the multiple support columns 1 and connecting components 2 of each tower unit 10 can be pre-assembled into a unit structure that can be installed as a whole. The support columns 1 of the upper tower unit 10 are not installed one by one and connected to the support columns 1 of the lower tower unit 10, but the upper tower unit 10 is installed as a whole and connected to the lower tower unit 10. By installing the tower unit 10 as a whole, the construction workers only need to connect the support columns 1 of the two adjacent tower units 10 at high altitudes, which can effectively reduce the difficulty of high-altitude operations and greatly improve construction efficiency.

[0048] Specifically, during the installation of the lattice tower 100, the first-layer tower unit 10 can be installed on the concrete foundation first. Then, on the ground, multiple support columns 1 and connecting components 2 are assembled using cranes to form the second-layer tower unit 10. The second-layer tower unit 10 is then lifted to the installation position. Construction workers can use the positioning grooves 11 and positioning plates 12 provided on the upper outer wall of the support column 1 of the first-layer tower unit 10 and the lower outer wall of the support column 1 of the second-layer tower unit 10 for positioning and fine-tuning, achieving overall docking between the second-layer tower unit 10 and the first-layer tower unit 10. Based on this, construction workers can check and confirm whether the structural positioning and dimensions of the two-layer tower units 10 meet the design and construction requirements. This process is repeated sequentially to complete the installation of the third-layer tower unit 10, the fourth-layer tower unit 10, and the uppermost tower unit 10, until the lattice tower 100 is fully installed.

[0049] When the tower unit 10 is modularly assembled as a whole, the positioning grooves 11 and positioning plates 12 provided on the outer wall of the support columns 1 facilitate construction personnel to simultaneously observe the docking status of each support column group P and adjust the overall posture of the upper tower unit 10 accordingly, thereby achieving synchronous alignment of all support columns 1. Compared with the method of installing each component of the tower unit 10 one by one in related technologies, this method can significantly reduce the operation time of the lattice tower 100, while greatly reducing the time construction personnel spend working at height and improving safety.

[0050] Please see Figures 1 to 4 , Figure 3 It shows Figure 1 Enlarged view at point B in the middle. Figure 4 It shows Figure 1 A magnified view of point C in the middle.

[0051] In some optional embodiments, in at least one support column group P of adjacent upper and lower tower units 10, the outer wall surface of the upper end of each lower support column 1 is provided with a positioning plate 12, and the outer wall surface of the lower end of each upper support column 1 is provided with a positioning groove 11 (not shown in the figure), or, the outer wall surface of the upper end of each lower support column 1 is provided with a positioning groove 11, and the outer wall surface of the lower end of each upper support column 1 is provided with a positioning plate 12.

[0052] In the support column group P equipped with positioning plates 12 and positioning grooves 11, the types of positioning components on the outer wall surface of the upper end of each lower support column 1 and the outer wall surface of the lower end of each upper support column 1 are completely consistent. This ensures that the docking operation method between the support columns 1 of the support column group P remains consistent, optimizes the docking operation process, reduces operational complexity, and is more suitable for the modular installation of the tower unit 10 in this embodiment of the application. This reduces installation difficulty, reduces high-altitude operation installation time, and reduces the operational intensity and safety risks for construction personnel.

[0053] When the support column groups P of adjacent upper and lower tower units 10 are all connected through positioning plates 12 and positioning slots 11, the upper outer wall surface of each support column 1 of the lattice tower 100 is provided with a positioning plate 12, and the lower outer wall surface is provided with a positioning slot 11; or, the upper outer wall surface of each support column 1 of the lattice tower 100 is provided with a positioning slot 11, and the lower outer wall surface is provided with a positioning plate 12. That is, the positioning components of all support columns 1 of the lattice tower 100 are set with the same structure, so as to facilitate the manufacturing and forming of the support columns 1 and improve the assembly efficiency of the tower unit 10.

[0054] In some alternative embodiments, the connecting component 2 and the plurality of support columns 1 enclose the tower cavity, and the positioning groove 11 and the positioning plate 12 are disposed on the outer wall surface of the support column 1 located outside the tower cavity.

[0055] The inner cavity of the tower does not refer to a completely sealed space, but rather to the polygonal space enclosed by the connecting component 2 and multiple support columns 1. In the circumference of the support columns 1, the outer wall surface is divided into a first region located inside the inner cavity of the tower and a second region located outside the inner cavity of the tower facing the external environment.

[0056] By placing the positioning groove 11 and the positioning plate 12 in the second area of ​​the outer wall, it is easier for construction personnel to observe the docking status of the positioning groove 11 and the positioning plate 12, and it is also easier to make real-time adjustments based on the docking status, further reducing the docking difficulty and improving installation efficiency.

[0057] Optionally, taking the tower unit 10 as an example, which includes four support columns 1, the positioning groove 11 and the positioning plate 12 can be set on the center line connecting two diagonally opposite support columns 1, thereby further ensuring the observation angle and improving the reliability of docking.

[0058] Please see Figures 1 to 6 , Figure 5 This paper shows a front view of the outer wall surface of the lower end of the support column 1 provided in some embodiments of this application. Figure 6 The diagram shows a front view of the outer wall surface of the upper end of the support column 1 provided in some embodiments of this application.

[0059] In some alternative embodiments, at least one of the inner sides of the positioning plate 12 and the positioning groove 11 is provided with a first guide slope S1. The first guide slope S1 is inclined relative to the height direction Z and is used to guide the positioning plate 12 to be inserted into the positioning groove 11 along the height direction Z.

[0060] At least one of the inner sides of the positioning plate 12 and the positioning groove 11 is provided with a first guide slope S1. The first guide slope S1 may be provided only at the insertion end of the positioning plate 12, or only at the inner side of the groove opening of the positioning groove 11, or both the insertion end of the positioning plate 12 and the inner side of the groove opening of the positioning groove 11 may be provided with a first guide slope S1.

[0061] The inclination direction of the first guide slope S1 of the positioning plate 12 and / or positioning groove 11 should facilitate the insertion of the positioning plate 12. For example, the insertion end of the positioning plate 12 may gradually shrink along the insertion direction, or the groove width of the positioning groove 11 may gradually decrease from the outside to the inside, so that the overall inclination direction conforms to the guiding function, so as to guide the positioning plate 12 to be inserted into the positioning groove 11 along the height direction Z.

[0062] By providing a first guide slope S1 on at least one of the inner sides of the positioning plate 12 and the positioning groove 11, the insertion of the positioning plate 12 can be automatically guided by the first guide slope S1 without the need for manual adjustment by construction personnel, thereby improving construction safety, reducing processing and installation accuracy requirements, and lowering manufacturing costs. In addition, the first guide slope S1 can also widen the fit range between the positioning plate 12 and the positioning groove 11, further reducing the difficulty of connecting the support column 1.

[0063] Optionally, the positioning plate 12 is provided with a first guide slope S1 on both sides along its own thickness direction, and / or the positioning groove 11 is provided with a first guide slope S1 on both sides of the groove wall, so as to guide the positioning plate 12 from both sides at the same time and improve the guiding effect.

[0064] Optionally, the first guide slope S1 can be planar or arc-shaped.

[0065] In some optional embodiments, when both the positioning plate 12 and the positioning groove 11 are provided with a first guide slope S1, the inclination angle of the first guide slope S1 of the positioning plate 12 relative to the height direction Z can be equal to the inclination angle of the first guide slope S1 of the positioning groove 11, so as to ensure a smooth guiding process.

[0066] Optionally, the tilt angle α1 of the first guide slope S1 relative to the height direction Z can be set to 15° - 45°. By making the tilt angle α1 of the first guide slope S1 relative to the height direction Z greater than or equal to 15°, it is possible to ensure that a large range of positional deviations can be calibrated. By making the tilt angle α1 of the first guide slope S1 relative to the height direction Z less than or equal to 45°, it is beneficial to ensure smoother sliding during guidance. Furthermore, the positioning plate 12 and the positioning groove 11 have sufficient strength and rigidity for limiting, thereby achieving a balance between guidance tolerance, guidance smoothness, and rigidity.

[0067] As an optional implementation, the tilt angle α1 of the first guide slope S1 relative to the height direction Z can be set to 30°.

[0068] Please see Figures 1 to 7 , Figure 7 A partially enlarged view of the joint of the support column assembly P provided in some embodiments of this application is shown.

[0069] In some alternative embodiments, the support column 1 includes a column body 13 and flanges 14 located at the upper and lower ends of the column body 13, and the two support columns 1 of each support column group P are connected to each other through their respective flanges 14. In at least one support column group P of adjacent upper and lower tower units 10, the positioning plate 12 and the positioning groove 11 are engaged on the outer side of the radial edge of the flange 14 of the support column group P.

[0070] By aligning the positioning plate 12 and the positioning groove 11 on the outer side of the radial edge of the flange 14, i.e., the mating position of the positioning plate 12 and the positioning groove 11 extends radially beyond the edge of the flange 14 body, the positioning component can be prevented from occupying the bolt hole area of ​​the flange 14. This ensures that the alignment of the positioning plate 12 and the positioning groove 11 will not affect the mating of the flange 14 between the two support columns 1 of each support column group P, thus guaranteeing the edge strength of the flange 14.

[0071] As an optional implementation, the support column assembly P includes a first branch 121 forming a positioning plate 12. The first branch 121 is disposed outside the radial edge of the flange 14 of one support column 1 and extends along the height direction Z to at least the mating surface S2 of the flange 14 of one support column 1. The support column assembly P also includes two opposing second branches 111, forming a positioning groove 11 between the two second branches 111. The second branches 111 are disposed outside the radial edge of the flange 14 of the other support column 1 and extend along the height direction Z, extending at least to the opposing surfaces of the mating surface S2 of the flange 14 of one support column 1 when the two support columns 1 are mated.

[0072] The mating face S2 of flange 14 refers to the end face of flange 14 of one support column 1 that is used to mate with flange 14 of another support column 1. The opposite surface of the mating face S2 of flange 14 refers to the flange surface S3 of flange 14 of one support column 1 that is opposite to the mating face S2 along the height direction Z.

[0073] In this embodiment, by providing a first branch 121 on one support column 1 of the support column group P and two opposing second branches 111 on the other support column 1, a positioning plate 12 is formed by the first branch 121, and a positioning groove 11 is formed between the two opposing second branches 111. When the two support columns 1 are joined, the first branch 121 is inserted between the two second branches 111 along the height direction Z to achieve the joining and positioning. Furthermore, by setting the first branch 121 on the radial outer edge of the flange 14 of one support column 1 and extending at least to the mating surface S2 of the flange 14 of one support column 1 along the height direction Z, and by extending the second branch 111 along the height direction Z to the flange surface S3 opposite to the mating surface S2 of the flange 14 of one support column 1 when the two support columns 1 are joined, a complete positioning stroke can be provided for the joining, increasing the distance by which the first branch 121 is inserted into the second branch 111, avoiding positioning failure due to the first branch 121 being inserted too shortly, and improving the reliability of the joining.

[0074] Optionally, the first support 121 is disposed on the outer wall surface of the lower end of a support column 1, and the second support 111 is disposed on the outer wall surface of the upper end of another support column 1. The end face of the insertion end of the first support 121 along the height direction Z is coplanar with the mating surface S2 of the flange 14, so that the support column 1 can be stably kept upright when the support column 1 is transported in parts and placed on the ground assembly platform, so as to facilitate the pre-assembly of the tower unit 10 on the ground and reduce the installation difficulty.

[0075] Optionally, when the two support columns 1 are connected, the end of the second branch 111 that is away from the first branch 121 along the height direction Z, i.e., the bottom of the positioning groove 11, can be open or closed, as long as it can ensure that the first branch 121 is inserted between the two second branches 111 along the height direction Z and does not affect the connection and assembly of the support column group P.

[0076] Please see Figures 1 to 9 , Figure 8 This application shows a side view of the outer wall surface of the lower end of the support column 1 provided in some embodiments. Figure 9 A side view of the outer wall surface of the upper end of the support column 1 provided in some embodiments of this application is shown.

[0077] As an optional implementation, the support column assembly P further includes a third branch 112, which is plate-shaped and at least partially located outside the radial edge of the flange 14 of the other support column 1, and is disposed opposite to the first branch 121 in the height direction Z. The second branch 111 is disposed on opposite sides of the third branch 112 and together with the third branch 112 forms a positioning groove 11.

[0078] The third branch 112 is located on another support column 1 opposite to the first branch 121. The two opposing second branches 111 are respectively connected to the opposite sides of the third branch 112 in its thickness direction. The second branches 111 and the third branch 112 together form a U-shaped positioning groove 11 structure.

[0079] By providing a third branch 112 on the support column 1, when preparing the support column assembly P, the third branch 112 and the first branch 121 can be used as references. By aligning the central axes of the third branch 112 and the first branch 121 along the height direction Z, and then connecting the second branch 111 to the opposite sides of the third branch 112, the relative positional relationship between the second branch 111 and the first branch 121 can be indirectly guaranteed, so that the first branch 121 can be reliably inserted between the two second branches 111 along the height direction Z, simplifying the manufacturing difficulty.

[0080] In some alternative embodiments, the third branch 112 is connected to the outer wall of the column body 13 of another support column 1 and extends beyond the radial edge of the flange 14, and / or the support column group P further includes a fourth branch 122, which is plate-shaped and connects the outer wall of the column body 13 of a support column 1 and the first branch 121.

[0081] By including a fourth branch 122 in the support column assembly P, the first branch 121 is connected to the column body 13 of a support column 1 through the fourth branch 122, and / or the third branch 112 is connected to the column body 13 of another support column 1, the influence of the connection between the third branch 112, the fourth branch 122 and the support column 1 on the flange 14 can be reduced. For example, when the third branch 112 and the fourth branch 122 are welded to the column body 13 of the support column 1, it is easier to control the range and degree of the heat-affected zone, thereby reducing the adverse effects of changes in the microstructure properties of the heat-affected zone on the accuracy of the flange 14 mating surface S2, and improving the reliability of the lattice tower 100 installation.

[0082] Furthermore, since the first branch 121 is connected to a support column 1 via the fourth branch 122, and the second branch 111 is connected to another support column 1 via the third branch 112, the distances L1 and L2 of the first branch 121 and the second branch 111 extending radially beyond the outer edge of the flange 14 should not be too large to reduce the lever arm, for example, but not limited to 2 mm, in order to balance connection strength and structural rigidity and improve the reliability of the connection. On the other hand, when the two support columns 1 are connected, the flange of one support column 1 can slide along the second branch 111 radially inside the flange 14 onto the flange of the other support column 1. In order to align the bolt holes on the two flanges 14, the distance L2 of the second branch 111 extending radially beyond the outer edge of the flange 14 can be related to the fit clearance of the bolt and bolt hole. For example, if the fit clearance of the bolt and bolt hole is 2 mm, then L2 can be limited to less than or equal to 2 mm.

[0083] Furthermore, as a non-limiting example, such as Figure 5 and Figure 6 As shown, the first guide slope S1 is provided on both sides of the insertion end of the first branch 121, and the first guide slope S1 is provided on the inner side of the two second branches 111 facing each other, which forms a Y-shaped guide surface with the inner surface of the two second branches 111.

[0084] In some alternative embodiments, the positioning groove 11 is clearance-fitted with the positioning plate 12.

[0085] The width of the positioning groove 11 can be set to c, and the thickness of the insertion end of the positioning plate 12 can be set to a. The width c of the positioning groove 11 is greater than the thickness a of the insertion end of the positioning plate 12. By making the positioning groove 11 and the positioning plate 12 fit together with a clearance, a certain guiding margin can be formed, allowing for fine-tuning of the upper tower unit 10 and the lower tower unit 10 during installation. Furthermore, when at least two support column groups P of the upper tower unit 10 and the lower tower unit 10 cooperate with each other through the positioning groove 11 and the positioning plate 12, it is easier to install each support column group P synchronously, thereby improving installation efficiency.

[0086] Optionally, when the second branch 111 is connected to the opposite sides of the third branch 112, the distance between the two second branches 111, i.e. the width c of the positioning groove 11, is equal to the thickness of the third branch 112. Therefore, the thickness of the third branch 112 can be adjusted according to the width c of the positioning groove 11 to achieve the cooperation between the positioning groove 11 and the positioning plate 12.

[0087] In some alternative embodiments, the two flanges 14 of the support column assembly P are connected by bolts and threaded holes. The difference between the width c of the positioning groove 11 and the thickness a of the positioning plate 12 is related to the clearance between the bolts and the threaded holes. The clearance between the bolts and the threaded holes is the difference between the diameter of the threaded hole and the diameter of the bolt.

[0088] The difference between the width c of the positioning groove 11 and the thickness a of the positioning plate 12 can be understood as the guide allowance of the positioning groove 11. The selection of this guide allowance is not independently designed, but is based on the fitting clearance between the bolt and the screw hole, so that the guide allowance of the positioning groove 11 matches the fine adjustment allowance of the bolt installation. Thus, after the first support 121 is inserted between the two second supports 111, the screw holes on the two flanges 14 are aligned and within the error range where the bolt can pass through, without the need for repeated adjustments to the position of the flanges 14, which greatly improves the assembly efficiency.

[0089] Please see Figures 1 to 9 In some alternative embodiments, the two second branches 111 are provided with a second guide slope S4 on one side of the column 13 of the other support column 1. The second guide slope S4 is inclined relative to the height direction Z and is used to guide the two support columns 1 of the support column group P to connect radially.

[0090] The inclination direction of the second guide slope S4 should facilitate the radial connection of the two support columns 1. For example, it can be along the insertion direction. The radial distance between the second guide slope S4 and the column body 13 of the support column 1 gradually decreases, so that the overall inclination direction conforms to the guiding function and is used to guide the two support columns 1 to connect radially.

[0091] By providing a second guide slope S4 on one side of the column 13 near the other support column 1 in the two second branches 111, the radial deviation when the two support columns 1 are joined can be corrected by the guiding effect of the second guide slope S4 when the upper support column 1 falls along the height direction Z. This eliminates the need for construction personnel to repeatedly adjust the horizontal position of the support column 1, thus improving installation efficiency.

[0092] Optionally, the second guide slope S4 can be planar or arc-shaped.

[0093] Optionally, the tilt angle α2 of the second guide slope S4 relative to the height direction Z can be set to 15° - 45°. By making the tilt angle α2 of the second guide slope S4 relative to the height direction Z greater than or equal to 15°, it is possible to ensure that the positional deviation within a large range is calibrated. On the other hand, by making the tilt angle α2 of the second guide slope S4 relative to the height direction Z less than or equal to 45°, it is beneficial to reduce resistance, avoid jamming when the two support columns 1 are connected, ensure smooth sliding during guidance, and achieve a balance between guidance fault tolerance and guidance smoothness.

[0094] As an optional implementation, the tilt angle α2 of the second guide slope S4 relative to the height direction Z can be set to 30°.

[0095] Please see Figures 1 to 9In some optional embodiments, the support column 1 includes an inner steel pipe 15, an outer steel pipe (i.e., column body 13), and a concrete interlayer between the inner steel pipe 15 and the outer steel pipe. The lattice tower 100 also includes a sealant layer 3, which is sealed between two support columns 1 of at least one support column group P. The sealant layer 3 includes a first sealing part 31 and a second sealing part 32. The first sealing part 31 is disposed on the end face of the concrete interlayer, and the second sealing part 32 is disposed radially between the first sealing part 31 and the inner steel pipe 15. The fluidity of the second sealing part 32 is less than that of the first sealing part 31.

[0096] The lattice tower 100 can be configured as a steel-concrete composite structure to reduce the overall cost of the lattice tower 100.

[0097] For the steel-concrete lattice tower 100, unlike the all-steel lattice tower 100, the support column 1 includes inner and outer steel pipes and a concrete interlayer between the inner and outer steel pipes. Therefore, it is necessary to set a sealant layer 3 between the joint surfaces of the concrete interlayer. The sealant layer 3 fills the gap at the joint of the two support columns 1 to prevent moisture and impurities from entering and form a waterproof and dustproof seal.

[0098] The sealant layer 3 includes a first sealing part 31 and a second sealing part 32. The second sealing part 32 has a lower fluidity than the first sealing part 31. The first sealing part 31 directly adheres to the mating end face of the concrete interlayer. The first sealing part 31 has higher fluidity and can fill and smooth the depressions on the mating end face of the concrete interlayer. This ensures pressure transmission along the height direction Z of the concrete interlayer of the support column 1 after the two support columns 1 are joined, while also providing a seal for the support column 1. Because the first sealing part 31 has higher fluidity, by providing the second sealing part 32, which has lower fluidity, inside the first sealing part 31, the risk of the first sealing part 31 being pressed into the steel pipe inside the support column 1 can be reduced. This forms a double protective structure of the first sealing part 31 and the second sealing part 32, achieving a reliable seal.

[0099] Optionally, the second sealing part 32 may surround the inner side of the first sealing part 31 to further reduce the risk of the first sealing part 31 being pressed into the inner steel pipe of the support column 1.

[0100] Optionally, in the height direction Z, the thickness of the second sealing part 32 is greater than or equal to the thickness of the first sealing part 31, so as to improve the blocking effect of the second sealing part 32 on the first sealing part 31 and further reduce the risk of the first sealing part 31 being pressed and squeezed into the inner steel pipe of the support column 1.

[0101] Optionally, the first sealing part 31 can be made of a viscous liquid adhesive, such as epoxy resin, and the second sealing part 32 can be made of a solid adhesive, such as a sealing strip. Of course, the first sealing part 31 and the second sealing part 32 can also use other commonly used sealing materials in the art.

[0102] It is understood that the sealing method in this application embodiment, while using positioning groove 11 and positioning plate 12 to replace the sleeve docking method in related technologies, eliminates the sealing problem caused by the elimination of the sleeve by using the cooperation of the first sealing part 31 and the second sealing part 32, thus making it more suitable for the segmented modular installation of the lattice tower 100.

[0103] During the installation of the lattice tower 100, taking the installation of the first two tower units 10 as an example, before lifting the second-layer tower unit 10 to the installation position as a whole, a second sealing part 32 can be installed around the entire circumference of the concrete interlayer on the upper surface of the first-layer tower unit 10 near the inner steel pipe. Then, sealant is applied to the remaining concrete interlayer to form a first sealing part 31. After that, the second-layer tower unit 10 can be lifted to the installation position as a whole, achieving a complete connection between the second-layer tower unit 10 and the first-layer tower unit 10.

[0104] For the lattice tower 100 in this application embodiment, during the docking of the support column 1 and the bolt connection of the flange 14 of the support column 1, construction personnel are required to perform installation and inspection. Therefore, a work platform 4 needs to be set up within this range to facilitate the operation of construction personnel.

[0105] Please see Figures 1 to 13 , Figure 10 The present application shows a schematic diagram of the structure of a tower unit 10 provided in some embodiments. Figure 11 It shows Figure 10 Enlarged view at point D in the middle. Figure 12 This application shows a schematic diagram of the structure of the working platform 4 of the lattice tower 100 provided in some embodiments. Figure 13 This paper shows a schematic diagram of the structure of the hanging post 42 and the mounting frame 16 provided in some embodiments of this application.

[0106] In some alternative embodiments, a mounting frame 16 is also provided on the outer wall surface of the upper end of at least one support column 1 of the lattice tower 100. The lattice tower 100 also includes a working platform 4, which is arc-shaped and includes a platform body 41 and a hanging column 42 connected to the platform body 41. The hanging column 42 is detachably mounted on the mounting frame 16.

[0107] The work platform 4 is arc-shaped, meaning that the inner contour of the platform body 41 is consistent with the arc shape of the outer wall of the support column 1. This allows the work platform 4 to be arranged in close contact with the support column 1, avoiding waste of working space and improving platform stability.

[0108] The work platform 4 includes a platform body 41 and hanging columns 42 connected to the platform body 41. The platform body 41 is the main structure that allows construction workers to step on it and stand for extended periods of time. The hanging columns 42 are connected to the platform body 41 and can be cylindrical or square. The mounting frame 16 may have openings that match the hanging columns 42, allowing the hanging columns 42 to be inserted into the openings so that the work platform 4 can be detachably mounted on the support column 1.

[0109] Optionally, the mounting frame 16 is provided with an opening at the top along the height direction Z, and the hanging column 42 is inserted into and removed from the mounting frame 16 through the opening along the height direction Z, thereby better adapting to the hoisting of the work platform 4 in tower high-altitude operations, and improving the impact resistance of the work platform 4, thus enhancing the safety of high-altitude operations.

[0110] The lattice tower 100 in this embodiment of the application provides a mounting frame 16 on the outer wall of the upper end of at least one support column 1, and the working platform 4 is mounted on the mounting frame 16 of the support column 1 via the hanging column 42. Compared with the conventional bolt connection method, it is easier to quickly assemble and disassemble the working platform 4, thereby reducing the high-altitude operation time of construction personnel and improving installation efficiency and safety.

[0111] For the lattice-type tower 100 in this embodiment, each tower unit 10 can be equipped with a mounting frame 16, thereby reducing the number of working platforms 4 required during actual installation. By removing the working platform 4 from the installed lower tower unit 10, it can be reused for the installation and docking of the upper tower unit 10, reducing material consumption and installation costs.

[0112] Optionally, the mounting bracket 16 is set on the outer wall surface of the support column 1 outside the inner cavity of the tower, so that the working platform 4 can be mounted on the outer wall surface of the support column 1 outside the inner cavity of the tower. This makes it easier for construction personnel to fully observe the docking of the positioning slot 11 and the positioning plate 12, and also makes it easier to adjust and align according to the docking deviation and complete the bolt installation at the docking point of the support column, further reducing the docking difficulty and improving the installation efficiency.

[0113] Optionally, the platform body 41 includes an arc-shaped step 411, a platform frame 412, and a safety railing 413. The platform frame 412 is supported below the arc-shaped step 411 to provide sufficient load-bearing capacity. The safety railing 413 is installed around the arc-shaped step 411 to protect construction personnel and reduce the risks of working at height.

[0114] Optionally, the protective railing 413 of the platform body 41 is equipped with an openable safety door 414, and the support column 1 is equipped with a climbing nail structure 17, which extends along the height direction Z to the safety door 414. The climbing nail structure 17 includes multiple climbing nails spaced apart, which can be climbed or stood on by construction workers. Compared with other climbing structures, the climbing nail structure 17 has advantages such as less material usage, lower manufacturing and construction costs, and is easier to use in conjunction with the work platform 4.

[0115] Please see Figures 1 to 14 , Figure 14 It shows Figure 12 Enlarged view of point E in the middle.

[0116] In some alternative embodiments, a first connecting hole is provided through the mounting frame 16, and a second connecting hole is provided on the hanging post 42. The hanging post 42 also includes a pin 422, which passes through the first connecting hole and the second connecting hole in sequence, and can restrict the degree of freedom of movement of the hanging post 42 away from the mounting frame 16.

[0117] The first connecting hole of the mounting frame 16 is located in the area where the second connecting hole of the hanging post 42 overlaps with the second connecting hole of the hanging post 42 after the hanging post 42 is inserted. The pin 422 passes through the first connecting hole and the second connecting hole in sequence to physically block the movement of the hanging post 42 along the opening direction of the mounting frame 16, so as to prevent the work platform 4 from generating force under special circumstances, causing it to overturn or detach from the mounting frame 16, thereby improving the safety of the work platform 4.

[0118] Optionally, the end of the hanging post 42 may be provided with a pin ring 421, which forms a second connecting hole.

[0119] Optionally, the two ends of the inserted pin 422 can be exposed to facilitate the installation of anti-detachment components such as cotter pins.

[0120] It is understandable that, in addition to using the pin 422 for locking, any other suitable structure such as the elastic buckle can be used to achieve the connection between the hanging post 42 and the mounting frame 16, thereby reducing the risk of the hanging post 42 detaching from the mounting frame 16 while achieving quick assembly and disassembly.

[0121] In some alternative embodiments, a plurality of mounting brackets 16 are provided on the outer wall surface of the support column 1. The plurality of mounting brackets 16 are spaced apart along the circumference of the support column 1. The working platform 4 includes a plurality of hanging columns 42, each hanging column 42 being detachably mounted on one of the mounting brackets 16.

[0122] By setting up multiple mounting frames 16 and hanging columns 42, with each hanging column 42 corresponding to a different mounting frame 16, multiple independent mounting structures are formed, increasing the stability of the working platform 4 and the load-bearing capacity redundancy of the hanging columns 42. The multiple hanging columns 42 can be located at the same height along the Z-direction, or they can be located at different heights along the Z-direction. For example, the multiple hanging columns 42 can be grouped into two groups of hanging columns 42, spaced apart along the Z-direction. Each group of hanging columns 42 includes multiple hanging columns 42 spaced apart circumferentially, allowing for a tighter fit between the working platform 4 and the supporting columns 1, providing a stable base for the workers' operations.

[0123] Optionally, multiple mounting frames 16 are evenly arranged along the circumference of the support column 1 to form a multi-point load-bearing structure, reducing the risk of overturning of the work platform 4.

[0124] Optionally, the number of mounting brackets 16 can be greater than or equal to three, for example, three, four or even more. Compared with two-point support, this can further reduce the risk of tilting of the work platform 4, while increasing the load-bearing capacity and improving safety.

[0125] Please see Figures 1 to 16 , Figure 15 A top view of the working platform 4 provided in some embodiments of this application is shown. Figure 16 It shows Figure 12 Enlarged view of point F in the middle.

[0126] In some alternative embodiments, the work platform 4 further includes a plurality of lifting lugs 43, which are respectively disposed on the platform body 41 and / or the hanging column 42, so as to achieve stable lifting of the work platform 4 through the plurality of lifting lugs 43.

[0127] Optionally, the number of lifting lugs 43 is greater than or equal to three. The three lifting lugs 43 can be partially set on the inner side of the arc of the working platform 4 and partially set on the outer side of the arc of the working platform 4. In this way, the distributed layout of multiple lifting lugs 43 can reduce the problem of easy tilting and difficulty in control of the working platform 4 during hoisting, and make it easier to achieve stable hoisting of the working platform 4.

[0128] Please see Figures 1 to 17 , Figure 17 It shows Figure 12 A magnified view of point G in the middle.

[0129] In some alternative embodiments, the hanging column 42 has rotational freedom relative to the mounting frame 16, and the extension direction of the rotation axis intersects the height direction Z. The working platform 4 also includes an adjusting member 44 located on one side of the hanging column 42 along the height direction Z. The adjusting member 44 has a fixed end 441 and a free end 442. The fixed end 441 is connected to the platform body 41, and the free end 442 protrudes relative to the platform body 41 toward the support column 1 and abuts against the outer wall surface of the support column 1. The protrusion distance of the free end 442 relative to the platform body 41 is adjustable.

[0130] When multiple hanging columns 42 are at the same height in the Z direction, an adjusting member 44 is installed on one side of the hanging column 42 of the working platform 4 along the Z direction. The adjusting member 44 can adjust the protrusion distance of the free end 442 relative to the platform body 41, so that the working platform 4 can rotate a certain angle around the hanging column 42 as the axis, thereby fine-tuning the angle between the working platform 4 and the support column 1, and clamping the working platform 4 onto the support column 1. There will be no obstruction when the working platform 4 is removed. In addition, it can also make the plane of the arc-shaped step 411 parallel to the horizontal plane, so that it is easier for construction personnel to step on the arc-shaped step 411 and perform the installation operation of the lattice tower 100.

[0131] Optionally, the number of adjusting members 44 can be set to multiple, with multiple adjusting members 44 spaced apart along the circumference of the support column 1, so that the plane where the arc-shaped pedal 411 is located is parallel to the horizontal plane by adjusting the protrusion distance of the free end 442 of the multiple adjusting members 44 relative to the platform body 41.

[0132] Optionally, the adjusting component 44 can be configured as an adjusting plate, a telescopic rod, etc. Taking the adjusting component 44 as an adjusting plate as an example, the fixed end 441 of the adjusting plate can be provided with an adjusting groove. The adjusting component 44 can also include a connecting member 443, which passes through the adjusting groove to fix the fixed end 441 of the adjusting plate to the platform body 41. By adjusting the relative position of the connecting member 443 in the adjusting groove, the protrusion distance of the free end 442 of the adjusting plate relative to the platform body 41 can be adjusted.

[0133] Optionally, the free end 442 of the adjusting plate can be configured as an outwardly convex arc-shaped structure, which makes it easier to abut against the outer wall surface of the support column 1 and can be adapted to support columns 1 of different specifications, thereby improving the applicability of the adjusting member 44.

[0134] In summary, the lattice-type tower 100 in this embodiment includes multiple tower units 10 arranged along the height direction Z. By providing matching positioning grooves 11 and positioning plates 12 on the outer wall surfaces of the upper ends of the support columns 1 of the lower tower unit 10 and the upper tower unit 10, the modular docking of adjacent tower units 10 can be achieved more intuitively and reliably by using the positioning grooves 11 and positioning plates 12 to connect on the outer wall surfaces of the support columns 1. Furthermore, a work platform 4 can be detachably mounted on the support columns 1 of the tower unit 10. This platform has a simple structure, is easy to mount, requires minimal installation work, and allows for quick assembly and disassembly of the work platform 4. This facilitates the modular assembly of the tower units 10, reducing installation difficulty, shortening operation time, and improving installation efficiency.

[0135] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lattice-type tower, characterized in that, The tower unit includes a multi-layer tower unit arranged along the height direction. Each tower unit includes a plurality of spaced-apart support columns and a connecting assembly connecting the plurality of support columns. The support columns include upper and lower ends in the height direction. The support columns of adjacent upper and lower tower units in the height direction are connected in groups to form a plurality of support column groups. In at least one of the support column groups, the outer wall surface of the upper end of the lower support column and the outer wall surface of the lower end of the upper support column are provided with matching positioning grooves and positioning plates. The positioning plates can be inserted into the positioning grooves along the height direction so that the two support columns of the support column group are connected to each other.

2. The lattice tower according to claim 1, characterized in that, The multiple support columns of each tower unit and the connecting components can be combined into a whole. In adjacent upper and lower tower units, the upper tower unit is connected to the lower tower unit as a whole.

3. The lattice tower according to claim 1, characterized in that, In the at least one support column group of two adjacent upper and lower tower units, the upper outer wall surface of each lower support column is provided with the positioning plate, and the lower outer wall surface of each upper support column is provided with the positioning groove; or, the upper outer wall surface of each lower support column is provided with the positioning groove, and the lower outer wall surface of each upper support column is provided with the positioning plate.

4. The lattice tower according to claim 1, characterized in that, The connecting assembly and the plurality of support columns enclose the tower cavity, and the positioning groove and the positioning plate are disposed on the outer wall surface of the support columns located outside the tower cavity.

5. The lattice tower according to claim 1, characterized in that, At least one of the positioning plate and the inner side of the positioning groove is provided with a first guide slope. The first guide slope is inclined relative to the height direction and is used to guide the positioning plate to be inserted into the positioning groove along the height direction.

6. The lattice tower according to claim 1, characterized in that, The support column includes a column body and flanges located at the upper and lower ends of the column body, and the two support columns of each support column group are connected to each other through their respective flanges; In at least one support column group of two adjacent upper and lower tower units, the positioning plate and the positioning groove engage with each other on the outer side of the radial edge of the flange of the support column group.

7. The lattice tower according to claim 6, characterized in that, The support column assembly includes a first branch that forms the positioning plate. The first branch is disposed outside the radial edge of the flange of a support column and extends at least along the height direction to the mating surface of the flange of the support column. The support column assembly further includes two opposing second branches, with the positioning groove formed between the two second branches. The second branches are disposed outside the radial edge of the flange of the other support column and extend along the height direction, extending at least to the opposing surfaces of the mating surfaces of the flange of one support column when the two support columns are mated.

8. The lattice tower according to claim 7, characterized in that, The support column assembly further includes a third branch, which is plate-shaped and at least partially located outside the radial edge of the flange of the other support column, and is disposed opposite to the first branch in the height direction; the second branch is disposed on opposite sides of the third branch and together with the third branch forms the positioning groove.

9. The lattice tower according to claim 8, characterized in that, The third branch is connected to the outer wall of the body of the other support column and extends beyond the radial edge of the flange; and / or, the support column assembly further includes a fourth branch, which is plate-shaped and connects the outer wall of the body of the support column to the first branch.

10. The lattice tower according to claim 6, characterized in that, The flanges of the support column assembly are connected by bolts and screw holes. The difference between the width of the positioning groove and the thickness of the positioning plate is related to the fit clearance between the bolts and the screw holes.

11. The lattice tower according to claim 7, characterized in that, Two second branches are provided with a second guide ramp on one side of the column near the other support column. The second guide ramp is inclined relative to the height direction and is used to guide the two support columns of the support column group to connect with each other in the radial direction.

12. The lattice tower according to any one of claims 1 to 11, characterized in that, The support column includes an inner steel pipe, an outer steel pipe, and a concrete interlayer between the inner and outer steel pipes. The lattice tower also includes a sealant layer, which is sealed and connected between two support columns of at least one of the support column groups. The sealant layer includes a first sealing part and a second sealing part. The first sealing part is disposed on the concrete interlayer, and the second sealing part is disposed between the first sealing part and the inner steel pipe. The fluidity of the second sealing part is less than that of the first sealing part.

13. The lattice tower according to any one of claims 1 to 11, characterized in that, At least one of the support columns of the lattice tower is provided with a mounting frame on the outer wall surface at the upper end. The lattice tower also includes a working platform. The working platform is arc-shaped and includes a platform body and a hanging column connected to the platform body. The hanging column is detachably mounted on the mounting frame.

14. The lattice tower according to claim 13, characterized in that, The mounting frame has a first connecting hole, and the hanging post has a second connecting hole. The hanging post also includes a pin, which passes through the first connecting hole and the second connecting hole in sequence, and can restrict the degree of freedom of movement of the hanging post from the mounting frame.

15. The lattice tower according to claim 13, characterized in that, The outer wall of the support column is provided with a plurality of mounting brackets, which are spaced apart along the circumference of the support column. The working platform includes a plurality of hanging columns, and each hanging column can be detachably mounted on one of the mounting brackets.

16. The lattice tower according to claim 13, characterized in that, The hanging column has rotational freedom relative to the mounting frame, and the extension direction of the rotation axis intersects the height direction; The working platform also includes an adjusting member located on one side of the hanging column along the height direction. The adjusting member has a fixed end and a free end. The fixed end is connected to the platform body, and the free end protrudes relative to the platform body toward the support column and abuts against the outer wall surface of the support column. The protrusion distance of the free end relative to the platform body is adjustable.

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