CN217894847U - Hoisting equipment for tower barrel - Google Patents

Abstract

The utility model provides a lifting device for a tower section of thick bamboo. The tower section of thick bamboo includes a plurality of tower section, a lifting device for tower section of thick bamboo includes: a spreader assembly for connection with a crane and with the upper end of the tower section; a rail portion, which is annular and is fixed below the spreader assembly; and the people ladder assembly is connected below the track part and can move along the track part so as to move around the periphery of the tower barrel section. According to the utility model discloses a lifting device for a tower section of thick bamboo can realize hoisting, installation, maintaining and maintaining of a tower section of thick bamboo with simple, stable, safe and low-cost mode.

Description

Hoisting equipment for tower barrel

Technical Field

The utility model relates to a fan erection equipment technical field, more specifically relates to a lifting device for a tower section of thick bamboo.

Background

At present, a tower cylinder of a wind driven generator is generally formed by sequentially hoisting and connecting a plurality of tower cylinder sections. During the hoisting process, the hoisting ropes of the crane are firstly connected with the lifting lugs on the tower section, then the tower section is hoisted by the crane and placed on the installed tower section so as to align and connect the tower section and the installed tower section. In the hoisting process of the tower cylinder section, a hoisting point on the crane is positioned at the center of the tower cylinder section, the lower end of the hoisting rope is connected with the lifting lug of the tower cylinder section, and the upper end of the hoisting rope inclines upwards to be connected with the hoisting point, so that the tower cylinder section is subjected to radial force towards the inside of the tower cylinder section besides upward pulling force. Such radial forces can cause the upper end of the column section to deform or crack. Especially for precast concrete tower sections, such radial forces can lead to bursting of the upper end of the tower section. In order to reduce such radial forces, it is often necessary to select longer hoisting ropes and, correspondingly, to have a crane with a longer boom length, which results in limited crane options and in increased costs for installing the tower.

Furthermore, during installation of the tower segments, it is necessary to lift a gondola, which is carried by a worker, using a crane, so that the worker can perform maintenance and repair on the outer circumference of the tower segment (e.g., at the connection position between two tower segments adjacent in the axial direction). In addition, the staff can also maintain and trim the periphery of the tower cylinder section in a spider man mode. However, both baskets or "spiders" present personal safety problems and also result in a high installation cost of the tower due to the replacement of the basket or crane.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to provide a can realize hoisting equipment of hoisting, installation, maintaining and maintaining of tower section of thick bamboo section with simple, stable, safe and low-cost mode.

According to the utility model discloses an aspect provides a lifting device for a tower section of thick bamboo, a tower section of thick bamboo includes a plurality of tower sections, a lifting device for a tower section of thick bamboo includes: a spreader assembly for connection with a crane and with the upper end of the tower section; a track portion, which is annular and fixed below the spreader assembly; and the people ladder assembly is connected below the track part and can move along the track part so as to move around the periphery of the tower barrel section.

Preferably, the spreader assembly may further comprise: a deck plate having at least one manhole formed therein; at least two suspension beams secured to the deck; and the hoisting connecting pieces are arranged on the at least two hoisting beams and are used for being connected with a crane and the upper end of the tower barrel section respectively, wherein the people ladder assembly can move below the at least one manhole.

Preferably, the hoisting device for a tower can further comprise a moving assembly located below the rail portion and movable along the rail portion, the people ladder assembly being pivotally connected below the moving assembly to pivot towards or away from the tower section.

Preferably, the people ladder assembly may include a people ladder portion having a top end hinged to the moving assembly, and a telescopic rod having a lower end hinged to the people ladder portion at a position spaced apart from the top end, and an upper end hinged to the moving assembly and spaced apart from the top end of the people ladder portion by a predetermined distance in a radial direction of the tower section.

Preferably, the motion assembly may include a first frame and a second frame fixed to each other, the first frame being located below the rail part, the people ladder assembly being pivotably connected to the first frame, and the second frame extending upward from an outer side of the spreader assembly by a predetermined length with respect to the first frame.

Preferably, the moving assembly may further include a driving part that rolls or slides the first frame along the rail part.

Preferably, the track portion may include a first track and a second track spaced apart from each other in a radial direction of the tower section, and the moving assembly may include a catch caught on the first track and the second track, wherein the catch is a unitary member.

Preferably, the personnel ladder assembly may comprise a personnel ladder and a guard having a side wall and a bottom wall disposed around the personnel ladder, an opening being formed in the side wall of the guard facing the tower section.

Preferably, each of the plurality of hoist links may include a main body movable with respect to the hoist beam, and a hoist rope attachment lug and a tower segment attachment lug fixed to upper and lower portions of the main body, respectively, the tower segment attachment lug extending vertically downward with respect to the hoist beam, the hoist rope attachment lug extending obliquely upward toward a center of the platform plate.

Preferably, a cover plate may be provided on each of the at least one manhole, the cover plate being locked to the landing plate by a locking device, wherein the locking device is unlocked when the ladder assembly is moved to below the at least one manhole.

Preferably, the hoisting device for a tower may further comprise a guardrail disposed around each of the at least one manhole.

Preferably, the deck plate may be an annular plate having a circular hole at the center thereof, and formed by connecting a plurality of plate members to each other in a circumferential direction, the at least two suspension beams being fixed to the connection of adjacent two of the plurality of plate members.

Preferably, the hoisting device for a tower can further comprise a cross beam located in the circular hole of the annular plate, the cross beam being fixed to the platform plate and being spaced apart from the at least two hoisting beams in the vertical direction.

Through adopting above-mentioned lifting device for a tower section of thick bamboo, through lifting device's hoist and mount, not only can hoist tower section of thick bamboo section steadily, can realize the maintenance and the repairment to tower section of thick bamboo periphery with simple, safe and low-cost mode moreover. That is, the hoisting, installation, finishing and maintenance of the tower cylinder section can be completed by one hoisting of the crane, which greatly improves the efficiency of installing the tower cylinder section and reduces the installation cost. Meanwhile, by adopting the hoisting equipment for the tower barrel, the personal safety problem caused by a hanging basket or a spider man mode and the problem of higher installation cost caused by changing the hanging basket or a crane can be avoided.

Drawings

The above and other objects, features and advantages of the present invention will be more clearly understood when the following detailed description is taken in conjunction with the accompanying drawings, in which:

fig. 1 is a perspective view illustrating a hoisting device for a tower drum according to an embodiment of the present invention.

Figure 2 is a bottom perspective view showing a lifting device according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing the construction of a portion of the telescopic pull rod, motion assembly and spreader assembly.

Figure 4 shows a perspective view of the man step and guard.

Figure 5 shows a schematic view of the structure of the lifting beam and the lifting connection.

Reference numerals:

100: column section, 10: spreader assembly, 11: hoisting connector, 111: a main body, 112: lifting lug is connected to the lifting rope, 113: connecting lug of tower section, 12: platform board, 121: manhole, 122: guardrail, 13: hanging beam, 20: rail portion, 21: first rail, 22: second rail, 30: people ladder assembly, 31: human step, 32: retractable tension bar, 33: guard, 331: side wall, 332: bottom wall, 333: opening, 40: moving assembly, 41: first frame, 42: second frame, 43: drive unit, 44: buckle, 50: a cross beam.

Detailed Description

Embodiments in accordance with the present invention will be described in detail with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

Figure 1 is a perspective view showing a hoisting device for a tower according to an embodiment of the present invention, and showing the hoisting device for a tower laying a tower section on an installed tower section. Figure 2 is a bottom perspective view of a lifting device according to an embodiment of the present disclosure, wherein a portion of the components (e.g., tower segments) are omitted to show the specific structure of the spreader assembly and the track portion.

As shown in fig. 1 and 2, the hoisting device for tower drum according to the present invention comprises: a spreader assembly 10 for connection to a crane and to the upper end of a tower section 100; a rail portion 20 having a ring shape and fixed below the spreader assembly 10; the people ladder assembly 30, connected below the track section 20, is movable along the track section 20 and thus movable around the circumference of the tower section 100. The hoisting equipment can stably hoist and place the tower sections on the installed tower sections through once hoisting, and after the tower sections are placed on the installed tower sections, workers can move around the peripheries of the tower sections along with the ladder assembly to maintain and repair the peripheries of the tower sections, for example, the workers can use high-strength sitting slurry to perform pointing processing on connecting positions between the adjacent tower sections. This avoids personal safety problems caused by the manner of a basket or "spider man" and problems with higher installation costs due to changing baskets or cranes.

The spreader assembly 10 may comprise, in addition to the lifting link 11: a deck plate 12 having at least one manhole 121 formed in the deck plate 12; at least two suspension beams 13 fixed to the deck plate 12; a plurality of lifting attachments 11 are provided on at least two lifting beams 13 for connection to a crane and to the upper end of the tower section 100, respectively. Specifically, an upper portion of each hoist link 11 may be coupled to a hoist rope (not shown) and a lower portion of each hoist link 11 may be coupled to an upper end of tower segment 100.

In addition, the people ladder assembly 30 can move through the underside of at least one manhole 121 so that a worker can conveniently crawl into the people ladder assembly 30 from the manhole 121 of the landing slab 12. Preferably, the manhole 121 is located at a position corresponding to a position of a ladder (not shown) inside the tower section 100 when the hoisting attachment 11 is attached to the lifting eye on the tower section 100, so that a worker can climb up the platform deck 12 through the ladder and then climb to the ladder assembly 30 through the manhole 121. In this manner, personnel may wait on the ladder inside the installed tower section before installing the tower section 100. After the spreader assembly 10 has placed the tower section 100 on the installed tower section and aligned therewith, the worker may climb up the ladder to the top of the tower section 100, then onto the deck 12, and then through the manhole 121 in the deck 12 to the personnel ladder assembly 30; after the maintenance and trimming of the outer circumference of the drum section 100 by the crew is completed, the crew can follow the reverse path through the manhole 121 back to the ladder inside the drum section 100 to wait for the next drum section to be installed. The safety of workers can be further ensured, and the walking path of the workers working at high altitude is shortened.

However, the embodiment of the present invention is not limited to this, and the position of the manhole 121 may not correspond to the position of the ladder inside the tower section 100, and after the worker climbs the platform 12, the worker walks on the platform 12 for a distance to reach the position of the manhole 121, and then crawls to the ladder assembly 30 through the manhole 121.

In an embodiment according to the present invention, the moving assembly 40 may be located below the track portion 20 and may be capable of moving along the track portion 20. As shown in fig. 2, the moving assembly 40 is located between the track portion 20 and the people ladder assembly 30, and can move the people ladder assembly 30 along the track portion 20. Further, the people ladder assembly 30 is pivotally connected to the underside of the locomotion assembly 40 to pivot either closer to the tower section 100 or further away from the tower section 100. Thus, before the tower section 100 is hoisted by the hoisting device, the people ladder assembly 30 is pivoted away from the tower section 100, so as to avoid the people ladder assembly 30 from colliding with the hoisted tower section 100 or an installed tower section during hoisting; after the spreader assembly 10 places the tower section 100 on an installed tower section, the people ladder assembly 30 may be pivoted into access to the tower section 100 to facilitate access to the outer perimeter of the tower section by personnel.

The extension length of the personnel ladder assembly 30 may be greater than the axial length of the tower sections 100 (in the case of multiple tower sections with different axial lengths, the extension length of the personnel ladder assembly 30 may be greater than the maximum axial length of the tower sections) so that a worker can crawl through the personnel ladder assembly 30 to the connection location between adjacent tower sections and maintain and repair the connection location. Furthermore, pivoting the personnel ladder assembly 30 away from the tower section 100 before the lifting device lifts the tower section 100 also prevents the lower portion of the personnel ladder assembly from interfering with the area carrying the tower section (e.g., the platform or ground of a transport vehicle).

Figure 3 is a schematic diagram showing the construction of a portion of the telescopic pull rod, motion assembly and spreader assembly. Fig. 4 shows a perspective view of the personnel ladder and the guard, wherein the personnel ladder is shown in dashed lines. As shown in fig. 3 and 4 in combination with fig. 2, the people ladder assembly 30 may include a people ladder 31 and a retractable tie 32, the top end of the people ladder 31 being hinged to the moving assembly 40, the lower end of the retractable tie 32 being hinged to the people ladder 31 at a position spaced apart from the top end, the upper end of the retractable tie 32 being hinged to the moving assembly 40 and spaced apart from the top end of the people ladder 31 by a predetermined distance in the radial direction of the tower section 100. The telescopic tension rods 32 may comprise sliding lead screws, and the length of the telescopic tension rods 32 may be adjusted by rotating the sliding lead screws after the personnel climbs the personnel ladder section 31 so that the personnel ladder assembly 30 approaches or departs from the tower section 100, and the adjusted sliding lead screws may be self-locked so that the personnel ladder assembly 30 can be fixed at a certain angle. The telescopic pull rod 32 with the sliding lead screw structure is convenient for the staff to adjust the length, and has high reliability and low cost. In addition, the retractable tension rods 32 can be pneumatically or hydraulically adjusted in length to effect pivoting of the people ladder assembly 30.

As shown in fig. 2 to 4, the moving assembly 40 includes a first frame 41 and a second frame 42 fixed to each other. The first frame 41 is located below the track portion 20, and the people ladder assembly 30 is pivotally connected to the first frame 41. Specifically, a plurality of protrusions are provided on the first frame 41, and the top end of the people ladder 31 of the people ladder assembly 30 and the upper end of the telescopic pull rod 32 are provided with hanging rings which are matched with the plurality of protrusions, so that the people ladder assembly 30 can be pivoted relative to the moving assembly 40 by adjusting the length of the telescopic pull rod 32, and the distance between the people ladder assembly 30 and the outer surface of the tower section 100 can be adjusted. The second frame 42 extends upward from the outside of the spreader assembly 10 (more specifically, from the outside of the platform 12) by a predetermined length with respect to the first frame 41, so that even if a worker stands on the platform 12, the position of the people ladder assembly 30 in the circumferential direction of the tower section 100 can be determined, and then the worker can adjust the people ladder assembly 30 to below the manhole 121. In addition, in the event of a failure of the moving assembly 40, a worker may tie a rope to the second frame 42 to pull the people ladder assembly 30 below the manhole 121 so that the worker in the people ladder assembly 30 can exit the people ladder assembly 30 through the manhole 121. In addition, in order to further ensure the personal safety of the working personnel, at least two safety ropes are connected between the personnel ladder assembly 30 and the moving assembly 40 to prevent the personnel ladder assembly 30 from falling down to endanger the personal safety of the working personnel when the protrusions on the first frame 41 are broken or the hanging rings on the personnel ladder part 31 and the telescopic pull rod 32 are dropped off.

The moving assembly 40 may further include a driving portion 43, and the driving portion 43 makes the first frame 41 roll or slide along the rail portion 20, so as to drive the people ladder assembly 30 connected with the first frame 41 to rotate along the rail portion 20. As shown in fig. 3, the driving part 43 may include a motor, a battery for supplying power to the motor, and a gear box, and the first frame 41 may include a driving shaft and a roller provided on the driving shaft. The power of the motor is transmitted to the rollers via the transmission and the transmission shaft, so that the rollers roll along the rail part 20, and thus the first frame 41 can move along the rail part 20. The driving unit 43 may be a pneumatic or hydraulic actuator that can drive the first frame 41 to slide along the rail unit 20. In this case, the pneumatic or hydraulic actuator may use the same pressure source as the pneumatically or hydraulically retractable pull rod 32, and the associated lines may be integrated.

As shown in fig. 2 and 3, the track portion 20 includes two tracks (i.e., a first track 21 on the radially outer side and a second track 22 on the radially inner side) spaced apart from each other in the radial direction of the tower segment 100, and the moving assembly 40 includes a catch 44 that catches on the first track 21 and the second track 22 to prevent the moving assembly 40 from disengaging from the track portion 20. The catch 44 may be a one-piece component, so that even if the catch 44 is in direct contact with the first and second rails 21, 22 (there is friction between them) and is subjected to a large force (e.g., the weight of the people ladder assembly 30 and the worker), the safety of the worker on the people ladder assembly 30 can be reliably ensured.

In addition, fig. 3 also shows a portion of the first track and the second track. As shown in fig. 3, each of the first and second rails 21 and 22 may be formed by bending an i-steel, and thus may have an i-shaped section. In addition, the clip 44 surrounds lower portions of the i-shaped first and second rails 21 and 22, and the roller is disposed between the lower portions of the first and second rails 21 and 22 and the clip 44. However, the embodiment of the present invention is not limited thereto, and the clip may also have a structure that is embedded in a radially inner portion of the i-shaped first rail 21 and a radially outer portion of the i-shaped second rail 22, and the roller may be disposed between the radially inner portion of the first rail 21 and the radially outer portion of the i-shaped second rail 22 and the clip.

In addition, as shown in fig. 2 and 4, the people ladder assembly 30 may further include a guard 33 in addition to the people ladder 31, the guard 33 having a sidewall 331 and a bottom wall 332 disposed around the people ladder 31, and an opening 333 formed on the sidewall 331 of the guard 33 facing the tower section 100. In the event that personnel are required to perform maintenance and repair at the connection locations of adjacent tower sections 100, the location of the opening 333 may generally correspond to the connection locations of adjacent tower sections 100. Although fig. 2 and 4 show that only one opening 333 is provided on the guard portion 33, embodiments of the present invention are not limited thereto, and two or more openings may be provided on the side wall 331 of the guard portion 33 as needed.

Figure 5 shows a schematic view of the structure of the lifting beam and the lifting connection. As shown in FIG. 5, each of the plurality of hoist links 11 includes a main body 111, and a hoist rope attachment lug 112 and a tower section attachment lug 113 secured to upper and lower portions of the main body 111, respectively. The body 111 is movable relative to the lifting beam 13 and is fixed to the lifting beam 13 by means of pins, so that the hoisting device can be adapted to hoist tower sections having different diameters. Furthermore, the hoist rope attachment lugs 112 extend diagonally upwards towards the centre of the platform 12, which allows the direction in which the hoist rope attachment lugs 112 extend to be adapted to the direction in which the hoist rope extends when the tower section is hoisted, so that the hoist rope attachment lugs 112 are able to withstand greater tension. In addition, the tower section connecting lugs 113 extend vertically downwards relative to the suspension beams 13, so that the hoisted tower section will not be subjected to radial forces towards the inside of the tower section, thereby avoiding deformation or damage of the upper end of the tower section and enhancing the stability of hoisting. In addition, under the condition that the lifted tower barrel section does not bear radial force, a longer lifting rope does not need to be selected, and accordingly the model selection space of the crane is enlarged, so that the installation cost of the tower barrel can be reduced.

However, the structure of the hoisting connector 11 according to the embodiment of the present invention is not limited thereto. For example, the hoist rope attachment lugs 112 may be secured to the lifting beam 13 instead of the main body 111, and the tower segment attachment lugs 113 may be secured to the main body 111 such that only the tower segment attachment lugs 113 move with the main body 111 along the lifting beam 13 to accommodate the lifting of tower segments having different diameters. As another example, the hoist rope attachment lugs 112 and tower section attachment lugs 113 may each be secured to the lifting beams 13 to accommodate hoisting tower sections of the same diameter or of lesser diameter.

In addition, a cover plate (not shown) may be provided on each manhole 121 to secure the structural strength of the deck 12 and improve the safety of workers on the deck 12. The cover plate may be locked to the deck 12 by a locking device (not shown) that unlocks when the ladder assembly 30 is moved below the manhole 121 so that a worker on the ladder assembly 30 climbs up the deck 12 through the manhole 121. Furthermore, the locking device can also be unlocked manually by a worker when the people ladder assembly 30 is moved below the manhole 121.

Furthermore, as shown in fig. 1, the hoisting device for a tower further comprises a guardrail 122 arranged around each manhole 121. The guard rails 122 may protect personnel safety of the workers as they crawl from the deck 12 to the people ladder assembly 30, or climb onto the deck 12 from the people ladder assembly 30, and may provide a gripping point for the workers.

In the embodiment of the present invention, the platform plate 12 is a ring plate having a circular hole in the center thereof to reduce the weight of the platform plate 12 and save materials. Further, the ring plate is formed by connecting a plurality of plate members to each other in a circumferential direction to facilitate the processing, transportation, and installation of the deck plate 12. Correspondingly, the rail part 20 may also be assembled from several parts, the rail part 20 being threaded into the catch 44 of the first frame 41 before the last part of the rail part 20 is assembled. The platform deck 12 in fig. 2 may be formed of four plate members and the rail portion 20 may comprise four parts, and fig. 3 shows one of the plate members of the platform deck 12 and one of the parts of the rail portion 20.

The suspension beam 13 may be fixed to a connection of adjacent two of the plurality of panels. Specifically, an upwardly extending plate is provided at the junction of two adjacent plate members and defines a recess for receiving the end of the suspension beam 13, so that the end of the suspension beam 13 can be bolted together with the upwardly extending plate, and the two adjacent plate members are each fixed to the same end of the suspension beam 13, so that the two adjacent plate members can also be fixed together. The lifting beams 13 may carry the weight of the tower section being lifted and the weight of the entire lifting apparatus, and the spreader assembly 10 may therefore comprise at least two lifting beams 13 arranged across each other and secured to each other. The lifting beam 13 may also comprise multiple segments for ease of handling, transport and installation.

The hoisting device for the tower further comprises a cross beam 50 in the circular hole of the annular plate, the cross beam 50 being fixed to the platform plate 12 and spaced apart from at least two hoisting beams 13 in the vertical direction to avoid that the hoisting connection 11 interferes with the cross beam 50 when the hoisting beams 13 are moved.

Through adopting above-mentioned lifting device for a tower section of thick bamboo, through lifting device's hoist and mount once, not only can stably hoist the tower section of thick bamboo and lay it on the tower section of thick bamboo section of installing, can realize the maintenance and the repairment to the periphery of tower section of thick bamboo with simple, safe and low-cost mode moreover. That is, the lifting, installation, finishing and maintenance of the tower section can be accomplished by one lifting of the crane, which greatly improves the efficiency of installing the tower section and reduces the installation cost. Meanwhile, by adopting the hoisting equipment for the tower barrel, the personal safety problem caused by a hanging basket or a spider man mode and the problem of higher installation cost caused by changing the hanging basket or a crane can be avoided.

Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims (13)

1. Hoisting device for a tower comprising a plurality of tower segments, characterized in that it comprises:

a spreader assembly (10) for connection to a crane and to an upper end of the tower section (100);

a rail portion (20), the rail portion (20) being annular and fixed beneath the spreader assembly (10);

a people ladder assembly (30) connected below the track part (20) and capable of moving along the track part (20) so as to move around the periphery of the tower section (100).

2. Hoisting device for a tower according to claim 1, characterized in that the spreader assembly (10) further comprises:

a deck plate (12) having at least one manhole (121) formed in the deck plate (12);

at least two lifting beams (13) fixed to the platform plate (12);

a plurality of hoisting connectors (11) arranged on the at least two hoisting beams (13) for connection with a crane and with the upper end of the tower section (100), respectively,

wherein the people ladder assembly (30) is movable through below the at least one manhole (121).

3. Hoisting device for a tower according to claim 1, characterized in that it further comprises a moving assembly (40), said moving assembly (40) being located below said rail part (20) and being movable along said rail part (20), said people ladder assembly (30) being pivotably connected below said moving assembly (40) to be pivoted closer to said tower section (100) or farther from said tower section (100).

4. Hoisting device for a tower according to claim 3, characterized in that said personnel ladder assembly (30) comprises a personnel ladder (31) and a telescopic pull rod (32), the top end of said personnel ladder (31) being hinged to said moving assembly (40), the lower end of said telescopic pull rod (32) being hinged to said personnel ladder (31) in a position spaced apart from said top end, the upper end of said telescopic pull rod (32) being hinged to said moving assembly (40) and spaced apart from the top end of said personnel ladder (31) by a predetermined distance in the radial direction of said tower section (100).

5. Hoisting device for a tower according to claim 3, characterized in that the movement assembly (40) comprises a first frame (41) and a second frame (42) fixed to each other, the first frame (41) being located below the track portion (20), the people ladder assembly (30) being pivotably connected to the first frame (41), and the second frame (42) extending a predetermined length upwards relative to the first frame (41) from the outside of the spreader assembly (10).

6. Hoisting device for a tower according to claim 5, characterized in that said moving assembly (40) further comprises a driving portion (43), said driving portion (43) causing said first frame (41) to roll or slide along said rail portion (20).

7. Hoisting device for a tower according to claim 3, characterized in that the rail part (20) comprises a first rail (21) and a second rail (22) spaced apart from each other in the radial direction of the tower segment (100), the movement assembly (40) comprising a catch (44) that catches on the first rail (21) and the second rail (22), wherein the catch (44) is a one-piece component.

8. Hoisting device for a tower according to claim 1, characterized in that the people ladder assembly (30) comprises a people ladder (31) and a guard (33), the guard (33) having a side wall (331) and a bottom wall (332) arranged around the people ladder (31), an opening (333) being formed in the side wall (331) of the guard (33) facing the tower section (100).

9. Hoisting device for a tower according to claim 2, characterized in that each of said plurality of hoisting connectors (11) comprises a main body (111) and a hoisting rope attachment lug (112) and a tower segment attachment lug (113) fixed to the upper and lower part of said main body (111), respectively, wherein said main body (111) is movable relative to said hoisting beam (13), said tower segment attachment lug (113) extending vertically downwards relative to said hoisting beam (13), said hoisting rope attachment lug (112) extending obliquely upwards towards the centre of said platform plate (12).

10. Hoisting device for a tower according to claim 2, characterized in that a cover plate is provided on each of the at least one manhole (121), which cover plate is locked on the platform plate (12) by means of locking means, wherein the locking means are unlocked when the people ladder assembly (30) is moved below the at least one manhole (121).

11. Hoisting device for a tower according to claim 2, characterized in that it further comprises a guardrail (122) arranged around each of said at least one manhole (121).

12. Hoisting device for a tower according to claim 2, characterized in that the platform plate (12) is an annular plate with a circular hole in its center and formed by a plurality of plates connected to each other in the circumferential direction, the at least two hoisting beams (13) being fixed to the connection of two adjacent plates of the plurality of plates.

13. Hoisting device for a tower according to claim 12, characterized in that the hoisting device for a tower further comprises a cross beam (50) in the circular hole of the annular plate, which cross beam is fixed to the platform plate (12) and is spaced apart from the at least two hoisting beams (13) in the vertical direction.

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