Tower hoisting device and tower hoisting assembly comprising same

Abstract

The utility model discloses a tower drum hoisting device and contain its tower drum hoisting subassembly, this tower drum hoisting device includes first fixed seat, second fixed seat and support subassembly, and support subassembly includes a plurality of first and last movable connection's rod unit and two ends are connected two fixed seat, and the interval of two ends is adjustable. Through adding support subassembly and first fixed seat, support subassembly will the stress of first fixed seat along support subassembly and transmit to second fixed seat, avoid stress concentration, limit tower drum flange in radial direction and lose circle, and first fixed seat has the function of connecting external hoisting equipment and fixed support subassembly. Support subassembly is equipped with first and last movable connection's multiple rod unit, can save material cost, avoid single unit long and thin ratio too big and stiffness difference and transportation difficult, and the movable between rod unit makes it automatic adjustment straight and along specific direction transmission moment, and the interval of two ends is adjustable to satisfy the support demand of tower drum of different diameters.

Description

Technical Field

[0001] This utility model relates to tower hoisting equipment, and in particular to a tower hoisting device and a tower hoisting assembly including the same. Background Technology

[0002] Currently, during the process of rotating the tower of an offshore wind turbine from a horizontal to a vertical lifting position, a fixed seat is usually installed on the lower end face of the tower to form a lifting point for hoisting equipment to lift the tower. However, after the tower is lifted, its own rigidity may not be able to overcome the influence of its own weight. The stress will be concentrated at the lifting point and the corresponding fixed seat connecting to the tower flange, causing the flange of the tower to be subjected to greater stress and prone to deformation. This will cause the lower flange to lose its roundness, affecting the bolt hole alignment with the already installed tower surface.

[0003] Therefore, how to solve the problem of easy deformation of the lower flange of the tower during the hoisting process from horizontal to vertical position has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the lower flange of the tower is prone to deformation during the hoisting process of horizontal flipping to vertical position in the prior art. The present invention provides a tower hoisting device and a tower hoisting assembly including the present invention.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A tower hoisting device, comprising:

[0007] A first fixed seat and a second fixed seat, both of which can be connected to the lower flange of the tower, and the first fixed seat has a lifting point;

[0008] A support assembly is provided, with its two ends connected to the first fixed seat and the second fixed seat, respectively. The support assembly includes multiple rod-shaped units that are movably connected end-to-end. The distance between the two ends of the support assembly is adjustable, and it is used to transmit the force on the first fixed seat at the upper end of the lower flange to the second fixed seat at the lower end of the lower flange.

[0009] By adding a support assembly and a second fixed seat, the line connecting the first and second fixed seats passes through the diameter direction of the lower flange. The support assembly transfers the force on the first fixed seat to the second fixed seat, avoiding stress concentration at the first fixed seat and limiting the out-of-roundness of the tower flange in the direction of the support assembly. Simultaneously, the first fixed seat is equipped with lifting points, allowing it to serve both as a connection point for external lifting equipment and for securing the support assembly. Furthermore, the support assembly is designed as multiple rod-shaped units connected end-to-end. The rod-shaped design saves on material costs, while the segmented structure avoids excessive slenderness ratios in individual rod-shaped units, preventing poor rigidity and transportation difficulties caused by excessively long single rod-shaped units. The movable connection between the rod-shaped units allows the support assembly to automatically adjust and straighten during hoisting, transmitting torque in a specific direction. The adjustable spacing between the two ends of the support assembly allows it to meet the support requirements of towers with different diameters.

[0010] Preferably, at least one of the rod-shaped units comprises:

[0011] Rod body;

[0012] A rod connector is threaded to the end of the rod body. The length of the rod-shaped unit can be adjusted by the thread of the rod connector relative to the rod body. The rod connector is movably connected to another rod-shaped unit.

[0013] The threaded connection of the joint provides a robust and pre-tightened mechanical connection that can effectively transfer axial loads between the rod-like units, ensuring that the support assembly maintains overall rigidity and stability during hoisting. This avoids the risk of failure due to loosening or misalignment between the rod-like units, further enhancing the safety of tower hoisting. At the same time, the thread engagement length of the joint can be adjusted to accommodate tower sections of different diameters.

[0014] Preferably, the rod connector is connected to the threaded post at the end of the rod body through a threaded hole, and the outer surface of the rod connector also has an observation channel extending inward to the threaded hole so that the position of the threaded post in the threaded hole can be observed.

[0015] And / or, the rod-shaped unit further includes a nut, which is fitted onto the outer surface of the connection between the rod joint and the rod body to achieve self-locking.

[0016] Through the thread inspection hole, operators can directly observe the specific details of the threaded connection of the connector into the rod-shaped unit, clearly determining whether the engagement length meets the design safety standards. During installation, no complex measuring tools are required; the inspection hole alone allows for quick assessment of tightening accuracy, thus accelerating the installation process.

[0017] Preferably, the rod-shaped unit is a high-strength alloy straight rod;

[0018] And / or, the rod-shaped unit is a hollow structure.

[0019] During tower hoisting, the support components (especially the rod-shaped units and joints near the main lifting platform) bear significant axial tensile and compressive forces. High-strength alloys provide extremely high yield strength and tensile strength, ensuring that the rod-shaped units do not undergo plastic deformation or fracture under enormous loads, providing reliable rigid support for the entire system. The hollow structure, while maintaining sufficient tensile and compressive strength, significantly reduces the weight of the entire support component, achieving a balance between high strength and lightweight design, thus lowering manufacturing costs and simplifying transportation and operation.

[0020] Preferably, the rod body is provided with rod joints at both ends, and the threads of the two rod joints that are threaded to the rod body are opposite in direction.

[0021] Because the threads at both ends rotate in opposite directions, with each rotation of the rod-shaped unit, the joints at both ends simultaneously screw into or out of the adjacent rod-shaped unit, simplifying operation and saving significant manpower and time. This is particularly suitable for large support components requiring high preload on tower hoisting equipment. Furthermore, the opposite thread design ensures that any attempt to rotate the rod-shaped unit will tighten both ends, creating a self-locking mechanism that effectively prevents accidental loosening due to vibration and enhances the safety of the device.

[0022] Preferably, the support assembly includes a first rod-shaped unit and a second rod-shaped unit connected to each other. The first rod-shaped unit and the second rod-shaped unit are respectively disposed close to the first fixed seat and the second fixed seat. The first rod-shaped unit includes a first rod body and a first rod connector and a second rod connector disposed at both ends of the first rod body. The second rod-shaped unit includes a second rod body and a third rod connector and a fourth rod connector disposed at both ends of the second rod body.

[0023] The first rod connector and the second rod connector are integrally formed;

[0024] And / or, the third rod connector and the fourth rod connector are separately connected.

[0025] Since the first fixed seat is in a state of stress concentration, the first rod joint and the second rod joint in the first rod-shaped unit that are directly connected to the first fixed seat adopt an integral molding structure to ensure that the first rod joint and the second rod joint have high yield strength, thereby improving the overall load-bearing capacity of the support assembly. The third rod joint and the fourth rod joint in the second rod-shaped unit that are not directly connected to the first fixed seat adopt a split docking structure, which can save manufacturing costs.

[0026] Preferably, two adjacent rod-shaped units are movably connected by a pivot structure.

[0027] The pivot structure allows the entire support assembly to bend at multiple points, enabling it to be housed in a relatively compact space, significantly reducing transportation costs and safety risks. Furthermore, during hoisting, the rod-like units are subjected to radial tensile forces, while the pivot structure allows these units to automatically adjust and transmit torque in a specific direction.

[0028] Preferably, the length of the support assembly is adapted to the diameter of the lower flange of the tower;

[0029] And / or, a connection hole is provided on the first fixed seat and / or the second fixed seat, the connection hole being used for bolt connection with the mounting hole of the lower flange of the tower;

[0030] And / or, the two ends of the support component are respectively connected to the first fixed seat and the second fixed seat via hinge structures.

[0031] The connection points are clearly located at both ends of the diameter, mechanically ensuring that the support components can provide maximum span and optimal restraint, effectively preventing the tower flange from becoming elliptical under lifting forces. Bolted connections are relatively simple to operate; installation and disassembly can be completed using appropriate tools, without complex processes or special equipment. During tower hoisting, the hoisting device can be quickly connected or disconnected from the tower, improving construction efficiency and facilitating subsequent equipment maintenance, repair, or replacement of the hoisting device.

[0032] This utility model also provides a tower hoisting assembly, which includes:

[0033] Tower;

[0034] As described above, in the tower hoisting device, the first fixed seat and the second fixed seat of the tower hoisting device are connected to the lower flange of the tower.

[0035] By installing a tower hoisting device at the lower flange of the tower, the second fixed seat in the tower hoisting device can transfer and share the force of the first fixed seat through the support components, thus preventing the lower flange of the tower from deforming under gravity during the tower hoisting process.

[0036] Preferably, the first fixing seat and the second fixing seat are respectively connected to both ends of the lower flange;

[0037] And / or, when the lower flange is lifted, the first fixing seat is located at the upper end and the second fixing seat is located at the lower end;

[0038] And / or, the tower hoisting assembly further includes an upper end face lifting device, which is connected to the upper flange of the tower, and the projections of the tower hoisting device and the upper end face lifting device in the height direction of the tower are perpendicular to each other.

[0039] When the tower is flipped from a horizontal to a vertical position, and the projections of the upper and lower lifting devices are perpendicular to each other, it is easier to rotate the tower around a specific axis by coordinating the main and auxiliary cranes and using the lifting action of the cranes. This makes it easier to flip and erect the tower, which helps to improve lifting efficiency and makes the lifting force distribution more even, avoiding swaying or tilting of the tower due to uneven force during the lifting process.

[0040] The positive and progressive effects of this utility model are as follows: By adding a support component and a second fixed seat, the line connecting the first and second fixed seats passes through the diameter direction of the lower flange. The support component transmits the force on the first fixed seat axially to the second fixed seat, avoiding stress concentration at the first fixed seat and limiting the out-of-roundness of the tower flange in the direction of the support component. Simultaneously, the first fixed seat is provided with lifting points, allowing it to serve both as a connection point for external lifting equipment and as a fixation point for the support component. Furthermore, the support component is configured as multiple rod-shaped units connected end-to-end. The rod-shaped design saves on material costs, while the segmented structure avoids excessive slenderness ratios in individual rod-shaped units, preventing poor rigidity and transportation difficulties caused by excessively long single rod-shaped units. The movable connection between the rod-shaped units allows the support component to automatically adjust and straighten during hoisting, transmitting torque in a specific direction. The adjustable distance between the two ends of the support component allows it to meet the support requirements of towers with different diameters. Attached Figure Description

[0041] Figure 1 This is a front view of the lower flange of the tower and the tower hoisting device in one embodiment of the present invention.

[0042] Figure 2 This is a side view of the lower flange of the tower and the tower hoisting device in one embodiment of the present invention.

[0043] Figure 3 This is a schematic diagram showing the positional relationship between the tower and the tower hoisting device in one embodiment of the present invention.

[0044] Figure 4 This is a three-dimensional schematic diagram (a) of the support component in one embodiment of the present invention.

[0045] Figure 5 This is a three-dimensional schematic diagram (II) of the support component in one embodiment of the present invention.

[0046] Figure 6This is a three-dimensional schematic diagram (III) of the support component in one embodiment of the present utility model.

[0047] Figure 7 for Figure 4 A magnified view of part A in the image.

[0048] Explanation of reference numerals in the attached figures:

[0049] Tower hoisting device 1

[0050] First fixed seat 10

[0051] Hanging point 11

[0052] Second fixing seat 20

[0053] Support component 30

[0054] Rod-shaped unit 31

[0055] Rod body 311

[0056] Nut 3121

[0057] Cotter pin 3122

[0058] Observation Channel 3123

[0059] First rod joint 321

[0060] Second rod connector 322

[0061] Third rod connector 323

[0062] Fourth joint 324

[0063] Pivot structure 33

[0064] Hinge structure 34

[0065] Tower 4

[0066] Lower flange 41 Detailed Implementation

[0067] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0068] like Figure 1As shown, this utility model provides a tower hoisting device 1, which includes: a first fixed seat 10, a second fixed seat 20, and a support assembly 30. The first fixed seat 10 and the second fixed seat 20 can both be connected to the lower flange 41 of the tower 4, and the first fixed seat 10 has a hoisting point 11. The two ends of the support assembly 30 are respectively connected to the first fixed seat 10 and the second fixed seat 20. The support assembly 30 includes two rod-shaped units 31, namely the first rod-shaped unit and the second rod-shaped unit. The two rod-shaped units 31 are movably connected end to end. The distance between the two ends of the support assembly 30 is adjustable, which is used to transmit the force on the first fixed seat at the upper end of the lower flange to the second fixed seat at the lower end of the lower flange.

[0069] In this embodiment, by adding a support assembly 30 and a second fixed seat 20 to the tower hoisting device 1, and arranging the line connecting the first fixed seat 10 and the second fixed seat 20 through the diameter direction of the lower flange 41, the force on the first fixed seat 10 is transferred to the second fixed seat 20 through the support assembly 30, thus avoiding stress concentration at the first fixed seat 10 and limiting the out-of-roundness of the tower 4 flange in the radial direction.

[0070] Meanwhile, a lifting point 11 is provided on the first fixed base 10, enabling the first fixed base 10 to serve as both a connection point for external lifting equipment and a fixation point for the support assembly 30. Furthermore, the support assembly 30 is configured as a series of rod-shaped units 31 connected end-to-end. The rod-shaped design saves on material costs, while the segmented structure avoids excessively large slenderness ratios in individual rod-shaped units 31, which could lead to poor rigidity, and also prevents excessively long single rod-shaped units 31 from causing transportation difficulties. The movable connection between the rod-shaped units 31 allows the support assembly 30 to automatically adjust and straighten during hoisting and transmit torque in a specific direction. The distance between the two ends of the support assembly 30 is adjustable to meet the support requirements of towers 4 with different diameters.

[0071] In this embodiment, as Figure 2 As shown, the support component 30 is formed by two rod-shaped units 31 connected end to end. In other embodiments, other lengths and numbers of rod-shaped units 31 can also be used to form the support component 30. The specific implementation scheme will not be described in detail.

[0072] like Figures 1-7 As shown, each of the two rod-shaped units 31 in the support assembly 30 includes its own rod body 311 and rod connector. The rod connector is threaded to the end of the rod body 311. The length of the rod-shaped unit 31 can be adjusted by the thread of the rod connector relative to the rod body 311. The rod connector is movably connected to the other rod-shaped unit 31.

[0073] In this embodiment, the threaded connection of the rod joint provides a robust and pre-tightened mechanical connection method, which can effectively transmit axial loads between each rod unit 31, ensuring that the support assembly 30 maintains overall rigidity and stability during hoisting, avoiding the risk of failure caused by loosening or misalignment between rod units 31, further enhancing the safety of hoisting the tower 4, and at the same time, the thread engagement length of the rod joint can be adjusted to adapt to tower sections of different diameters.

[0074] like Figure 6 As shown, the rod connector is connected to the threaded post at the end of the rod body 311 through a threaded hole. The outer surface of the rod connector also has multiple observation channels 3123 extending inward to the threaded hole. These observation channels 3123 are distributed axially so that the position of the threaded post within the threaded hole can be observed from the outside through the observation channels 3123. The rod-shaped unit 31 also includes a nut 3121, which is fitted onto the outer surface of the connection between the rod connector and the rod body 311 to achieve self-locking. Specifically, as shown... Figure 7 As shown, in this embodiment, the first rod connector 321 includes a nut 3121 and a cotter pin 3122. The nut 3121 is fitted onto one side of the cotter pin 3122 to achieve the effect of fixing the rod-shaped unit 31. In other embodiments, other mechanical connection methods can also be used to achieve the function of adjusting the length of the rod-shaped unit 31 and the self-locking effect.

[0075] In this embodiment, by observing the channels 3123 on the rod joint, specifically the position of the threaded post at the end of the rod body 311 within each channel 3123, the operator can directly observe the thread of the rod joint being screwed into the rod-shaped unit 31, clearly determining whether the engagement length meets the design safety standard. During installation, no complex measuring tools are needed; simply observing the channels 3123 allows for quick assessment of tightening, thus accelerating the installation process. In this embodiment, three observation channels 3123 are provided on a single rod joint, through which the thread of the rod body 311 can be observed to ensure the engagement length.

[0076] like Figures 1-7 As shown, the rod-shaped unit 31 is a high-strength alloy straight rod with a hollow structure to achieve a balance between structural strength and weight.

[0077] In this embodiment, during the hoisting of the tower 4, the support assembly 30 withstands enormous axial tensile and compressive forces. The high-strength alloy provides extremely high yield strength and tensile strength, ensuring that the rod-shaped unit 31 will not undergo plastic deformation or fracture under large loads, providing reliable rigid support for the entire device. The hollow structure, while ensuring sufficient tensile and compressive strength, significantly reduces the weight of the entire support assembly 30, achieving a balance between high strength and lightweight design, thus reducing manufacturing costs and the difficulty of transportation and operation.

[0078] like Figures 1-7 As shown, rod joints are provided at both ends of the rod body 311, and the thread direction of the two rod joints at both ends is opposite to that of the threaded connection of the rod body 311.

[0079] In this embodiment, because the threads at both ends rotate in opposite directions, each rotation of the rod-shaped unit 31 causes the joints at both ends to simultaneously screw into or out of the adjacent rod-shaped unit 31, thus simplifying the operation and saving a significant amount of manpower and time. This is particularly suitable for large support components 30 requiring high preload on the tower hoisting device 1. Furthermore, by adopting the opposite thread design, any attempt to rotate the rod-shaped unit 31 will cause one end of the joint to tighten more, and the other end will also tighten more, thus forming a self-locking mechanism that effectively prevents accidental loosening due to vibration and improves the safety of the device.

[0080] like Figure 2 As shown, the support assembly 30 includes a first rod-shaped unit and a second rod-shaped unit connected to each other. The first rod-shaped unit and the second rod-shaped unit are respectively disposed near the first fixed seat 10 and the second fixed seat 20. The first rod-shaped unit includes a first rod body and a first rod connector 321 and a second rod connector 322 disposed at both ends of the first rod body. The second rod-shaped unit includes a second rod body and a third rod connector 323 and a fourth rod connector 324 disposed at both ends of the second rod body. The first rod connector 321 and the second rod connector 322 are integrally formed, while the third rod connector 323 and the fourth rod connector 324 are separately connected.

[0081] In this embodiment, since the first fixed base 10 is in a state of stress concentration, the first rod joint 321 and the second rod joint 322 in the first rod-shaped unit directly connected to the first fixed base 10 adopt an integral molding structure to ensure that the first rod joint 321 and the second rod joint 322 have high yield strength, thereby improving the overall load-bearing capacity of the support assembly 30. The third rod joint 323 and the fourth rod joint 324 in the second rod-shaped unit that are not directly connected to the first fixed base 10 adopt a split docking structure, which can relatively save manufacturing costs. In this embodiment, the first rod joint 321 and the second rod joint 322 are manufactured by forging, thereby improving their load-bearing capacity, while the third rod joint 323 and the fourth rod joint 324 are manufactured by welding to save manufacturing costs. In other embodiments, other manufacturing methods can be used to achieve the corresponding technical effects. This part belongs to the prior art in this field and will not be described in detail here.

[0082] like Figures 1-7 As shown, two adjacent rod-shaped units 31 are movably connected by a pivot structure 33.

[0083] In this embodiment, the pivot structure 33 allows the entire support assembly 30 to be bent at multiple points, enabling it to be stored in a relatively compact space, significantly reducing transportation costs and safety risks. Simultaneously, during hoisting, the rod-shaped unit 31 is subjected to radial tensile force, and the pivot structure 33 allows the rod-shaped unit 31 to automatically adjust and transmit torque along a specific direction.

[0084] like Figures 1-7 As shown, the length of the support assembly 30 is adapted to the diameter of the lower flange 41 of the tower 4. The first fixed seat 10 and / or the second fixed seat 20 are provided with connection holes, which are used to connect with the mounting holes of the lower flange 41 of the tower 4 by bolts. The two ends of the support assembly 30 are respectively connected to the first fixed seat 10 and the second fixed seat 20 by hinge structure 34.

[0085] In this embodiment, the connection points are clearly located at both ends of the diameter, mechanically ensuring that the support assembly 30 can provide the maximum span and optimal constraint effect, effectively preventing the flange of the tower 4 from becoming elliptical under the action of lifting force. The bolted connection method is relatively simple to operate; installation and disassembly can be completed using appropriate tools, without the need for complex processes or special equipment. During the lifting of the tower 4, the lifting device can be quickly connected or disconnected from the tower 4, improving construction efficiency and facilitating subsequent equipment maintenance, repair, or replacement of the lifting device.

[0086] like Figures 1-7 As shown, this utility model also provides a tower hoisting assembly, which includes: a tower 4, a tower hoisting device 1 as described above, and a first fixed seat 10 and a second fixed seat 20 of the tower hoisting device 1 connected to the lower flange 41 of the tower 4.

[0087] In this embodiment, by setting a tower hoisting device 1 at the lower flange 41 of the tower 4, the second fixed seat 20 in the tower hoisting device 1 can transmit and share the force of the first fixed seat 10 through the support component 30, so as to avoid the lower flange 41 of the tower 4 from deforming under gravity during the hoisting process of the tower 4.

[0088] like Figures 1-7 As shown, the first fixed seat 10 and the second fixed seat 20 are respectively connected to the two ends of the lower flange 41. When the lower flange 41 is lifted, the first fixed seat 10 is located at the upper end and the second fixed seat 20 is located at the lower end. The tower lifting assembly also includes an upper end face lifting device. The upper end face lifting device is connected to the upper flange of the tower 4. The projections of the tower lifting device 1 and the upper end face lifting device in the height direction of the tower 4 are perpendicular to each other.

[0089] In this embodiment, when the tower 4 is flipped from a horizontal state to a vertical state, the projections of the upper and lower lifting devices are perpendicular to each other. This makes it easier to rotate the tower 4 around a specific axis by coordinating the main and auxiliary cranes and using the lifting action of the cranes. This makes it easier to flip and erect the tower 4, which is beneficial to improving the lifting efficiency and can make the lifting force distribution more uniform, thus avoiding the tower 4 from swaying or tilting due to uneven force during the lifting process.

[0090] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A tower hoisting device, characterized in that, It includes: A first fixed seat and a second fixed seat, both of which can be connected to the lower flange of the tower, and the first fixed seat has a lifting point; A support assembly is provided, with its two ends connected to the first fixed seat and the second fixed seat, respectively. The support assembly includes multiple rod-shaped units that are movably connected end-to-end. The distance between the two ends of the support assembly is adjustable, and it is used to transmit the force on the first fixed seat at the upper end of the lower flange to the second fixed seat at the lower end of the lower flange.

2. The tower hoisting device as described in claim 1, characterized in that, At least one of the rod-shaped units comprises: Rod body; A rod connector is threaded to the end of the rod body. The length of the rod-shaped unit can be adjusted by the thread of the rod connector relative to the rod body. The rod connector is movably connected to another rod-shaped unit.

3. The tower hoisting device as described in claim 2, characterized in that, The rod connector is connected to the threaded post at the end of the rod body through a threaded hole. The outer surface of the rod connector also has an observation channel that extends inward to the threaded hole so that the position of the threaded post in the threaded hole can be observed. And / or, the rod-shaped unit further includes a nut, which is fitted onto the outer surface of the connection between the rod joint and the rod body to achieve self-locking.

4. The tower hoisting device as described in claim 2, characterized in that, The rod-shaped unit is a high-strength alloy straight rod; And / or, the rod-shaped unit is a hollow structure.

5. The tower hoisting device as described in claim 2, characterized in that, Both ends of the rod body are provided with rod joints, and the threads of the two rod joints that are threaded to the rod body are opposite in direction.

6. The tower hoisting device as described in claim 2, characterized in that, The support assembly includes a first rod-shaped unit and a second rod-shaped unit connected to each other. The first rod-shaped unit and the second rod-shaped unit are respectively disposed close to the first fixed seat and the second fixed seat. The first rod-shaped unit includes a first rod body and a first rod connector and a second rod connector disposed at both ends of the first rod body. The second rod-shaped unit includes a second rod body and a third rod connector and a fourth rod connector disposed at both ends of the second rod body. The first rod connector and the second rod connector are integrally formed; And / or, the third rod connector and the fourth rod connector are separately connected.

7. The tower hoisting device as described in claim 1, characterized in that, The two adjacent rod-shaped units are movably connected by a pivot structure.

8. The tower hoisting device as described in claim 1, characterized in that, The length of the support assembly is adapted to the diameter of the lower flange of the tower. And / or, a connection hole is provided on the first fixed seat and / or the second fixed seat, the connection hole being used for bolt connection with the mounting hole of the lower flange of the tower; And / or, the two ends of the support component are respectively connected to the first fixed seat and the second fixed seat via hinge structures.

9. A tower hoisting assembly, characterized in that, It includes: Tower; The tower hoisting device according to any one of claims 1-8, wherein the first fixed seat and the second fixed seat of the tower hoisting device are connected to the lower flange of the tower.

10. The tower hoisting assembly as described in claim 9, characterized in that, The first fixing seat and the second fixing seat are respectively connected to both ends of the lower flange; And / or, when the lower flange is lifted, the first fixing seat is located at the upper end and the second fixing seat is located at the lower end; And / or, the tower hoisting assembly further includes an upper end face lifting device, which is connected to the upper flange of the tower, and the projections of the tower hoisting device and the upper end face lifting device in the height direction of the tower are perpendicular to each other.

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