An adjustable concrete wind turbine tower hoisting platform

Abstract

This invention discloses an adjustable concrete wind turbine tower hoisting platform, relating to the field of wind turbine tower construction technology. It includes a first connecting seat and a second connecting seat. A square tube sleeve is fixedly installed at equal angles on the outer ring of the first connecting seat. An inner support square tube and an outer support square tube are connected between the square tube sleeves. A square tube sleeve is symmetrically installed on the outer ring of the second connecting seat. An inner connecting square tube and an outer connecting square tube are fixedly installed on both sides of the second square tube. The rear inner and outer connecting square tubes are fixedly connected to the front square tube sleeve via a connecting plate. Both the first and second square tube sleeves have a telescopic beam assembly inside. This invention, through its carefully designed connecting seats, square tube sleeves, telescopic beam assembly, telescopic transmission assembly, pedal assembly, and protective assembly, achieves flexible adjustment of the platform's size and position, meeting diverse needs in different hoisting construction scenarios.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower construction technology, specifically to an adjustable concrete wind turbine tower hoisting and construction platform. Background Technology

[0002] With the increasing global demand for clean energy, wind power has been widely applied and developed as a sustainable energy solution. In wind power systems, the tower, as a key structure supporting the wind turbine, is constantly increasing in height and size. Especially in some inland areas where wind speeds are relatively low, increasing tower height is necessary to access better wind resources and improve power generation efficiency. Concrete wind turbine towers are increasingly widely used in the wind power sector due to their high rigidity, good durability, and lower cost. Concrete towers are generally prefabricated in sections, then transported to the site for assembly and hoisting. During hoisting, after each concrete section is installed, a series of follow-up tasks are required, such as removing the hooks from the top of the section, measuring the levelness of the top surface, placing steel shims, and applying epoxy structural adhesive. These tasks all require construction personnel to work on a safe, stable, and easily accessible construction platform.

[0003] However, the existing adjustable concrete wind turbine tower hoisting platforms still have certain defects in use;

[0004] 1. Most existing concrete wind turbine tower hoisting platforms adopt a fixed structure and lack flexible adjustment functions. This makes the platform only suitable for hoisting wind turbine towers of specific sizes and types. When faced with wind turbine towers of different specifications, the size and position cannot be adjusted, resulting in poor applicability. At the same time, the operation process is relatively cumbersome, requiring a lot of time and effort in the assembly and disassembly stages. The inability to adjust flexibly during hoisting also leads to low construction efficiency.

[0005] 2. Regarding safety, the existing construction platform has significant shortcomings. On the one hand, protective measures are inadequate, the guardrails are rudimentary and have blind spots, making it easy for construction workers to fall when working at heights. On the other hand, the platform lacks stability and is prone to swaying or even overturning under external forces, especially in inclement weather or when hoisting large components, seriously threatening the safety of construction workers and equipment.

[0006] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0007] To address the aforementioned issues, an innovative design was developed based on the existing adjustable concrete wind turbine tower hoisting platform. Summary of the Invention

[0008] The purpose of this invention is to provide an adjustable concrete wind turbine tower hoisting platform to solve the problems mentioned in the background art, such as the fixed structure, lack of adjustment function, complex operation, poor maintainability, and insufficient safety and stability of existing concrete wind turbine tower hoisting platforms, which result in poor applicability, low construction efficiency and safety hazards.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an adjustable concrete wind turbine tower hoisting platform, comprising a connecting seat one and a connecting seat two;

[0010] A square tube sleeve is fixedly installed at equal angles on the outer ring of the first connecting seat. An inner supporting square tube and an outer supporting square tube are connected between the square tube sleeves. A square tube sleeve is symmetrically installed on the outer ring of the second connecting seat. An inner connecting square tube and an outer connecting square tube are fixedly installed on both sides of the square tube sleeve. The inner connecting square tube and the outer connecting square tube at the rear end are fixedly connected to the square tube sleeve at the front side through a connecting plate.

[0011] Both the first and second square tube sleeves are equipped with a telescopic beam assembly.

[0012] The connecting seat is provided with a telescopic transmission component, which is connected to the telescopic beam assembly.

[0013] A fixing frame is fixedly installed on the top of the inner connecting square tube and the outer connecting square tube on the front side, and a telescopic beam assembly two is provided inside the fixing frame;

[0014] The top surfaces of the telescopic beam assembly one and the telescopic beam assembly two are equipped with pedal assemblies;

[0015] The outer rings of the telescopic beam assembly one and the telescopic beam assembly two are connected to protective components.

[0016] Preferably, the rear end of the fixing frame is fixedly connected to the front square tube sleeve one via a connecting plate, and side pull rings are fixedly installed on the outer top surfaces of the square tube sleeve one, the square tube sleeve two, and the fixing frame.

[0017] By adopting the above technical solution, the connecting seat one and connecting seat two, as well as the square tube sleeve one and square tube sleeve two on them, provide a stable support foundation for the entire hoisting construction platform. At the same time, the setting of telescopic beam assembly one, telescopic transmission assembly, telescopic beam assembly two, etc., allows the platform to flexibly adjust its size and position according to the actual hoisting construction needs, improving the applicability and flexibility of the construction platform. The footboard assembly and protective assembly provide a safe and reliable working environment for construction personnel.

[0018] The rear end of the fixed frame is connected to the square tube sleeve through a connecting plate, which enhances the stability of the structure. The side pull ring is designed to facilitate external pulling during the hoisting process, further ensuring the stability and safety of the construction platform during hoisting.

[0019] Preferably, the telescopic beam assembly includes a movable square tube 1 that is slidably installed inside square tube sleeve 1 and square tube sleeve 2. A limiting groove 1 is provided on the top of both square tube sleeve 1 and square tube sleeve 2. A limiting pin 1 is slidably connected inside the limiting groove 1. The bottom end of the limiting pin 1 is fixedly connected to the movable square tube 1. The movable square tube 1 forms a limiting sliding structure through the limiting pin 1 and the limiting groove 1.

[0020] Preferably, the telescopic beam assembly further includes a transmission seat fixedly installed at the bottom of the movable square tube. An adjusting screw is threaded through the internal thread of the transmission seat. Positioning shaft seats are rotatably sleeved at both ends of the adjusting screw. A driven bevel gear is fixedly installed at the inner end of the adjusting screw.

[0021] Preferably, the first and second square tube sleeves are slidably connected through the transmission seat corresponding to the bottom, and the first and second square tube sleeves are fixedly connected to the top of the positioning shaft seat corresponding to the bottom.

[0022] Using the above technical solution, the movable square tube 1 can slide inside the square tube sleeve 1 and the square tube sleeve 2. The cooperation between the limiting pin 1 and the limiting groove 1 limits the sliding of the movable square tube 1, making the telescopic beam assembly 1 more stable and reliable, avoiding shaking or displacement during the telescopic process, thereby ensuring the stability of the overall structure of the construction platform.

[0023] The transmission seat, adjusting screw, positioning shaft seat and driven bevel gear provide an effective transmission mechanism for the telescopic beam assembly one's telescopic movement. By rotating the adjusting screw, the movable square tube one can be driven to telescopically move, realizing flexible adjustment of the construction platform size. At the same time, the driven bevel gear meshes with the subsequent telescopic transmission assembly, so that the entire telescopic movement can be driven by an external power source, making the operation more convenient and efficient.

[0024] At the same time, it enables the square tube sleeve one and square tube sleeve two to work stably with the transmission seat and positioning shaft seat, ensuring the smoothness and stability of the telescopic beam assembly one during the telescopic process. It also facilitates the assembly and disassembly of the entire structure, improving the maintainability and operability of the construction platform.

[0025] Preferably, the telescopic transmission assembly includes a fixed shaft seat fixedly installed on the inner ring of the connecting seat, a connecting rod fixedly connected to the inner ring of the fixed shaft seat, and a driving bevel gear fixedly installed at the bottom end of the connecting rod, the driving bevel gear and the driven bevel gear being perpendicularly meshed.

[0026] Preferably, the telescopic transmission assembly further includes a worm gear fixedly installed at the top of the connecting rod. A worm is meshed with the outer side of the worm gear. One end of the worm is rotatably sleeved with a limit bearing. The bottom end of the limit bearing is fixedly connected to the top surface of the connecting seat. The other end of the worm is connected to a servo motor via a coupling. The bottom of the servo motor is fixedly connected to the top surface of the connecting seat.

[0027] By adopting the above technical solution, the fixed shaft seat, connecting rod, and the vertical meshing connection between the driving bevel gear and the driven bevel gear constitute an effective power transmission system. The connecting rod is driven to rotate by an external power source, which in turn drives the driving bevel gear to rotate. The driving bevel gear then transmits power to the driven bevel gear through meshing, thereby realizing the control of the telescopic beam assembly one's telescopic movement. This transmission method has the advantages of compact structure, high transmission efficiency and accurate transmission ratio, and can accurately control the telescopic length of the telescopic beam assembly one to meet the size adjustment requirements under different hoisting construction scenarios.

[0028] The addition of worm gear transmission enables the telescopic transmission assembly to have a self-locking function. When the servo motor stops working, the telescopic beam assembly can stably maintain the current telescopic position and will not accidentally extend or retract due to external forces, thereby improving the safety and reliability of the construction platform. At the same time, the use of servo motors can realize precise control and automated operation of telescopic movements, further improving construction efficiency and construction quality.

[0029] Preferably, the telescopic beam assembly two includes a movable square tube two symmetrically slidably installed inside the fixed frame. The fixed frame has a limit groove two at the top of both ends. A limit pin two is slidably installed inside the limit groove two. The bottom end of the limit pin two is fixedly connected to the movable square tube two. The top surface of the movable square tube two has positioning grooves at equal intervals on both sides. The front ends of both sides of the fixed frame have symmetrical positioning pins that penetrate through it. The positioning pins are engaged with the movable square tube two through the positioning grooves.

[0030] By adopting the above technical solution, the symmetrical sliding installation of the movable square tube II inside the fixed frame, as well as the cooperation of the limiting groove II, limiting pin II, positioning groove and positioning pin, enables the telescopic beam assembly II to achieve flexible telescopic adjustment. After being adjusted to the appropriate position, it can be fixed by the engagement of the positioning pin and the positioning groove, thereby meeting the diverse needs of construction platform size under different hoisting construction scenarios and further improving the applicability and flexibility of the construction platform.

[0031] Preferably, fixed corner plates are installed at the outer ends of both movable square tube one and movable square tube two. A connecting corner plate is attached to the top of movable square tube one, which is slidably connected inside the square tube sleeve two. A pedal assembly is installed on the top surface of the connecting corner plate, movable square tube one, and movable square tube two. The pedal assembly includes a movable pedal movably installed on the top surface of the connecting corner plate, movable square tube one, and movable square tube two. The connecting corner plate is fixedly connected to the movable pedal corresponding to the top. Pull rods are installed on the top surfaces of both ends of the movable pedal. Elongated holes are opened at both ends of the movable pedal and inside the connecting corner plate. A pin movably passes through the elongated hole. Movable square tube one and movable square tube two are movably inserted into the pin corresponding to the top.

[0032] Using the above technical solution, the combination of the movable pedal, pull rod, elongated hole and pin allows the pedal assembly to be flexibly adjusted and fixed according to actual construction needs. The pin is fixed by passing through the elongated hole and being connected to the movable square tube one and movable square tube two. This allows the movable pedal to slide on the pin using the elongated hole during telescopic adjustment, which is beneficial for providing radial position adjustment for the movable pedal.

[0033] Preferably, the protective component includes multiple sets of guardrail posts, with the outer ring of guardrail posts fixedly connected to fixed corner plates, and the inner symmetrically distributed guardrail posts fixedly connected to fixed frames, and the guardrail posts are fixedly connected to each other by chains.

[0034] By adopting the above technical solution, the protective components provide comprehensive safety protection for construction workers. The fixed connection between the guardrail posts, fixed corner plates, and fixed frames, as well as the connection of the chains, form a solid protective barrier, effectively preventing construction workers from falling accidentally during the operation, ensuring the personal safety of construction workers, and also providing strong protection for the overall safety of the construction platform.

[0035] Compared with existing technologies, the beneficial effects of this invention are as follows: This adjustable concrete wind turbine tower hoisting platform, through its carefully designed connecting seat, square tube sleeve, telescopic beam assembly, telescopic transmission assembly, pedal assembly, and protective assembly, achieves flexible adjustment of the platform's size and position, meeting diverse needs in different hoisting scenarios. Its structure is stable and reliable, effectively ensuring safety and stability during construction. Simultaneously, it is convenient and efficient to operate, significantly improving construction efficiency and quality. It provides an efficient, safe, and reliable solution for wind turbine tower hoisting construction, as detailed below:

[0036] 1. Connecting seat one and connecting seat two, along with their outer square tube sleeves one and two, provide a stable support foundation for the entire construction platform. The connecting plate securely connects the inner and outer connecting square tubes at the rear end to the front square tube sleeve one, enhancing the overall structural stability of the platform and ensuring it can withstand significant loads during hoisting without deformation or damage. This stable support structure is a prerequisite for subsequent telescopic adjustments and hoisting operations.

[0037] 2. The design of the telescopic beam assembly one provides excellent adjustability of the platform in the length direction. The sliding of the movable square tube one within the square tube sleeve one and square tube sleeve two, as well as the limiting engagement of the limiting pin one and the limiting groove one, ensure the stability and reliability of the telescopic movement. The transmission mechanism of the transmission seat, adjusting screw, positioning shaft seat, and driven bevel gear allows the telescopic movement to be precisely controlled by an external power source, enabling flexible adjustment of the platform size to adapt to the length requirements of different hoisting construction scenarios.

[0038] The design of the second telescopic beam component further enhances the adjustability of the construction platform in the width direction. The symmetrical sliding installation of the second movable square tube within the fixed frame, along with the coordination of the second limiting groove, the second limiting pin, the positioning groove, and the positioning pin, allows the platform to be flexibly adjusted in the width direction according to actual construction needs. This design not only improves the applicability and flexibility of the construction platform but also better adapts to the requirements of different wind turbine tower structures and hoisting construction processes.

[0039] 3. The telescopic transmission assembly provides effective power transmission and control for the telescopic beam assembly one's telescopic movement. The fixed shaft, connecting rod, and the perpendicular meshing of the driving and driven bevel gears achieve efficient power transmission and accurate control. The addition of a worm gear drive not only further improves transmission efficiency but also gives the telescopic transmission assembly a self-locking function, ensuring that the telescopic beam assembly one can stably maintain its current position after telescopic movement, preventing accidental extension or retraction due to external forces, thereby improving the safety and reliability of the construction platform. The use of a servo motor automates and precisely controls the telescopic movement, improving construction efficiency and quality.

[0040] 4. The flexible design of the pedal assembly provides construction workers with a comfortable and convenient working platform. The combination of the movable pedal, pull rod, elongated hole, and pin allows construction workers to freely adjust the position of the movable pedal according to their work habits and comfort requirements, and secure it firmly with the pull rod and pin. This adjustable pedal design not only improves the working comfort of construction workers, but also effectively reduces their fatigue during long-term work, thereby improving construction efficiency and quality.

[0041] 5. The protective components provide comprehensive safety protection for construction personnel. The fixed connections of multiple guardrail posts, fixed angle plates, and fixed frames, as well as the chain connections between the guardrail posts, form a robust protective barrier, effectively preventing accidental falls by construction personnel during operations. This safety measure not only ensures the personal safety of construction personnel but also provides strong safety assurance for the entire hoisting process, allowing them to work with greater peace of mind and further improving the safety and reliability of the construction. Attached Figure Description

[0042] Figure 1 This is a side view of the external structure of the present invention;

[0043] Figure 2 This is a schematic diagram of the distribution structure of square tube sleeve one and square tube sleeve two of the present invention;

[0044] Figure 3 This is a schematic diagram of the adjusting screw distribution structure of the present invention;

[0045] Figure 4 This is a schematic diagram of the connection structure between the square tube sleeve II and the fixing frame of the present invention;

[0046] Figure 5 This is a schematic diagram of the connection structure between the inner supporting square tube and the outer supporting square tube and the square tube sleeve of the present invention;

[0047] Figure 6 This is a schematic diagram of the adjusting screw and the drive bevel gear transmission structure of the present invention;

[0048] Figure 7 This is a schematic diagram of the worm gear and drive bevel gear transmission structure of the present invention;

[0049] Figure 8 This is a schematic diagram of the connection structure between a side section of the square tube sleeve and the movable square tube of the present invention;

[0050] Figure 9 This is a schematic diagram of the connection structure between the fixed frame and the movable square tube of the present invention;

[0051] Figure 10 This is a schematic diagram of the two-part structure of the fixed frame and the movable square tube of the present invention.

[0052] Figure 11 This is an exploded structural diagram of the movable pedal and the movable square tube of the present invention.

[0053] In the diagram: 1. Connecting seat one; 2. Connecting seat two; 3. Square tube sleeve one; 4. Inner supporting square tube; 5. Outer supporting square tube; 6. Square tube sleeve two; 7. Inner connecting square tube; 8. Outer connecting square tube; 9. Connecting plate; 10. Fixing bracket; 11. Side pull ring; 12. Movable square tube one; 13. Fixed angle plate; 14. Limiting groove one; 15. Limiting pin one; 16. Transmission seat; 17. Adjusting screw; 18. Positioning shaft seat; 19. From 20. Moving bevel gear; 21. Fixed shaft seat; 22. Connecting rod; 23. Driving bevel gear; 24. Worm gear; 25. Limiting shaft seat; 26. Servo motor; 27. Movable square tube II; 28. Limiting groove II; 29. ​​Limiting pin II; 30. Positioning groove; 31. Positioning pin; 32. Movable pedal; 33. Pull rod; 34. Oblong hole; 35. Pin; 36. Guardrail post; 37. Chain; 38. Connecting corner plate. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Please see Figure 1-11This invention provides a technical solution: an adjustable concrete wind turbine tower hoisting platform, including a connecting seat 1 and a connecting seat 2. A square tube sleeve 3 is fixedly installed at equal angles on the outer ring of the connecting seat 1. An inner supporting square tube 4 and an outer supporting square tube 5 are connected between the square tube sleeves 1 and 3. A square tube sleeve 6 is symmetrically installed on the outer ring of the connecting seat 2. An inner connecting square tube 7 and an outer connecting square tube 8 are fixedly installed on both sides of the square tube sleeve 6. The rear inner connecting square tube 7 and the outer connecting square tube 8 are fixedly connected to the front square tube sleeve 3 via a connecting plate 9. The rear end of a fixing frame 10 is fixedly connected to the front square tube sleeve 3 via a connecting plate 9. Side-pulling rings 11 are fixedly installed on the top outer surfaces of the square tube sleeves 1, 2, and 10. A telescopic beam assembly 1 is provided inside both the square tube sleeves 1, 2, and 2. The telescopic beam assembly 1 includes components slidably installed on... The movable square tube 12 inside the square tube sleeve 3 and the square tube sleeve 2 6, and the top of the square tube sleeve 3 and the square tube sleeve 2 6 are all provided with a limit groove 14. The limit groove 14 is slidably connected to the limit pin 15. The bottom end of the limit pin 15 is fixedly connected to the movable square tube 12. The movable square tube 12 forms a limit sliding structure with the limit pin 15 and the limit groove 14. The telescopic beam assembly also includes a transmission seat 16 fixedly installed at the bottom of the movable square tube 12. The square tube sleeve 3 and the square tube sleeve 2 6 are slidably connected to the corresponding transmission seat 16 at the bottom. The internal thread of the transmission seat 16 is threaded through an adjusting screw 17. The two ends of the adjusting screw 17 are rotatably sleeved with positioning shaft seats 18. The top ends of the square tube sleeve 3 and the square tube sleeve 2 6 are fixedly connected to the corresponding positioning shaft seats 18 at the bottom. The inner end of the adjusting screw 17 is fixedly installed with a driven bevel gear 19.

[0056] In the adjustable concrete wind turbine tower hoisting platform of the present invention, the above-mentioned structure design includes connecting seat 1 and connecting seat 2 forming the basic support structure of the platform. The outer ring of connecting seat 1 is fixedly installed with square tube sleeve 3 at equal angles. These square tube sleeves 3 are connected to each other through inner support square tube 4 and outer support square tube 5 to form a stable support frame. The outer ring of connecting seat 2 is symmetrically installed with square tube sleeve 6. The two sides of square tube sleeve 6 are respectively fixedly installed with inner connecting square tube 7 and outer connecting square tube 8. The inner connecting square tube 7 and outer connecting square tube 8 at the rear end are fixedly connected to the square tube sleeve 3 at the front side through connecting plate 9, which further enhances the stability of the entire platform structure. The rear end of the fixing frame 10 is also fixedly connected to the square tube sleeve 3 at the front side through connecting plate 9. The top surface of the outer ring of square tube sleeve 3, square tube sleeve 6 and fixing frame 10 are all fixedly installed with side pull rings 11. These side pull rings 11 can be used to assist in pulling by external force during hoisting to ensure the stability and safety of the platform during hoisting.

[0057] Both square tube sleeve 3 and square tube sleeve 6 are equipped with telescopic beam assembly 1. The core component of telescopic beam assembly 1 is movable square tube 12, which is slidably installed inside square tube sleeve 3 and square tube sleeve 6. The setting of limiting groove 14 and limiting pin 15 allows movable square tube 12 to slide inside square tube sleeve 3 and square tube sleeve 6. At the same time, the cooperation of limiting pin 15 and limiting groove 14 limits the sliding of movable square tube 12, ensuring the stability and reliability of telescopic movement, avoiding shaking or deviation during telescopic movement, and thus ensuring the stability of the overall structure of the construction platform.

[0058] When the telescopic beam assembly needs to be telescopically adjusted, the driving bevel gear 22, which meshes with the driven bevel gear 19, is driven by an external power source. The rotation of the driving bevel gear 22 drives the driven bevel gear 19 to rotate, which in turn causes the adjusting screw 17 to rotate within the transmission seat 16. Since the adjusting screw 17 and the transmission seat 16 are connected by a thread, the rotation of the adjusting screw 17 is converted into linear motion of the movable square tube 12 within the square tube sleeve 3 and the square tube sleeve 6, thus realizing the telescopic action of the movable square tube 12. This transmission mechanism allows the telescopic action to be precisely controlled by an external power source, enabling flexible adjustment of the construction platform size, making the operation more convenient and efficient.

[0059] A telescopic transmission assembly is provided on the connecting seat 1. The telescopic transmission assembly is connected to the telescopic beam assembly. The telescopic transmission assembly includes a fixed shaft seat 20 fixedly installed on the inner ring of the connecting seat 1. A connecting rod 21 is fixedly connected to the inner ring of the fixed shaft seat 20. A driving bevel gear 22 is fixedly installed at the bottom end of the connecting rod 21. The driving bevel gear 22 is perpendicularly meshed with the driven bevel gear 19. The telescopic transmission assembly also includes a worm gear 23 fixedly installed on the top end of the connecting rod 21. A worm 24 is meshed with the outer side of the worm gear 23. One end of the worm 24 is rotatably sleeved with a limit shaft seat 25. The bottom end of the limit shaft seat 25 is fixedly connected to the top surface of the connecting seat 1. The other end of the worm 24 is connected to a servo motor 26 through a coupling. The bottom of the servo motor 26 is fixedly connected to the top surface of the connecting seat 1.

[0060] In the above-described structure, after the servo motor 26 is powered on, its output shaft drives the worm 24 to rotate around its own axis via a coupling. One end of the worm 24 is supported by a limiting bearing 25 to ensure its rotational stability. The rotating worm 24 engages with the worm wheel 23 via a thread, converting the horizontal rotational motion into the vertical rotational motion. Because the worm 24-worm wheel 23 transmission has a self-locking characteristic, when the servo motor 26 stops, the worm wheel 23 cannot drive the worm 24 in the reverse direction, thus locking the current position.

[0061] The worm gear 23 is fixedly connected to the connecting rod 21. Therefore, the rotation of the worm gear 23 drives the connecting rod 21 to rotate synchronously around the axis of the fixed shaft seat 20. The fixed shaft seat 20 is rigidly connected to the connecting seat 1 by bolts, providing stable support for the entire transmission system. The driving bevel gear 22 at the bottom of the connecting rod 21 rotates together and meshes perpendicularly with multiple driven bevel gears 19. Since the driven bevel gears 19 are respectively fixed to the inner ends of each adjusting screw 17, the rotation of the driving bevel gear 22 simultaneously drives all adjusting screws 17 to rotate synchronously. The rotation of the screw 17 drives the transmission seat 16 to move along the screw axis via the thread. Since the transmission seat 16 is fixedly connected to the movable square tube 12, and the movable square tube 12 restricts the rotational freedom of the movable square tube 12 through the limiting pin 15 and the limiting groove 14, the rotational motion of the screw is finally converted into the linear extension and retraction motion of the movable square tube 12. When the servo motor 26 rotates clockwise, the adjusting screw 17 drives the movable square tube 12 to extend outward, and the platform diameter increases; when it rotates counterclockwise, the movable square tube 12 retracts inward, and the platform diameter decreases.

[0062] A fixed frame 10 is fixedly installed on the top of the inner connecting square tube 7 and the outer connecting square tube 8 on the front side. A telescopic beam assembly 2 is provided inside the fixed frame 10. The telescopic beam assembly 2 includes a movable square tube 27 that is symmetrically slidably installed inside the fixed frame 10. Limiting grooves 28 are opened at the top of both ends of the fixed frame 10. Limiting pins 29 are slidably installed inside the limiting grooves 28. The bottom end of the limiting pins 29 is fixedly connected to the movable square tube 27. Positioning grooves 30 are equally spaced on both sides of the top surface of the movable square tube 27. Positioning pins 31 are symmetrically inserted through the front ends of both sides of the fixed frame 10. The positioning pins 31 are engaged with the movable square tube 27 through the positioning grooves 30.

[0063] When the lateral working range of the construction platform needs to be expanded, the positioning pin 31 is first pulled out from the engagement state between the fixed frame 10 and the top positioning groove 30 of the movable square tube 27, thus releasing the position restriction on the movable square tube 27. At this time, due to the cooperation between the limiting pin 29 and the limiting groove 28, the movable square tube 27 is limited to sliding in a straight line along the inside of the fixed frame 10, thus avoiding deviation or rotation during the sliding process.

[0064] Pull the movable square tube 27 along the direction of the fixed frame 10. The limiting pin 29 slides synchronously in the limiting groove 28 to ensure the accurate sliding path of the movable square tube 27. After the movable square tube 27 slides to the position that meets the construction requirements, insert the positioning pin 31 into the corresponding positioning groove 30 so that the positioning pin 31 passes through the fixed frame 10 and the movable square tube 27, re-establishing a stable locking connection, thereby locking the movable square tube 27 in the current extended position and preventing it from being displaced due to external forces during construction. When it is necessary to retract the platform, pull out the positioning pin 31 again and slide the movable square tube 27 back along the fixed frame 10 until it returns to the initial position. Then insert the positioning pin 31 to fix it, completing the process of adjusting the lateral dimensions of the platform. The whole process, through the guidance of the limiting pin 29 and the limiting groove 28, and the locking of the positioning pin 31 and the positioning groove 30, realizes the convenient and reliable extension and retraction adjustment and position fixation of the telescopic beam assembly 2.

[0065] Fixed corner plates 13 are installed at the outer ends of movable square tube 12 and movable square tube 27. The top of movable square tube 12, which is slidably connected inside square tube sleeve 26, is fitted with a connecting corner plate 38. A pedal assembly is installed on the top surface of the connecting corner plate 38, movable square tube 12 and movable square tube 27. The pedal assembly includes a movable pedal 32 that is movably installed on the top surface of the connecting corner plate 38, movable square tube 12 and movable square tube 27. The connecting corner plate 38 is fixedly connected to the corresponding movable pedal 32 at the top. Pull rods 33 are installed on the top surface of both ends of the movable pedal 32. Elongated holes 34 are opened at both ends of the movable pedal 32 and inside the connecting corner plate 38. A pin 35 is movably inserted through the elongated hole 34. Movable square tube 12 and movable square tube 27 are movably inserted into the corresponding pin 35 at the top.

[0066] Before installing the movable pedal 32, the movable pedal 32 is placed on the top surface of the connecting angle plate 38, the movable square tube 12, and the movable square tube 27. The connecting angle plate 38 is fixedly connected to the movable pedal 32 that fits against the top. The connecting angle plate 38 has an elongated hole 34 corresponding to the movable pedal 32 inside, ensuring that the elongated holes 34 at both ends of the movable pedal 32 align with the slots opened inside the movable square tube 12 and the movable square tube 27. Then, the pin 35 is passed through the elongated holes 34 at both ends of the movable pedal 32 and inserted into the corresponding insertion hole of the movable square tube 12 or the movable square tube 27 below, so as to achieve a fixed connection between the movable pedal 32 and the supporting structure below.

[0067] The design of the elongated hole 34 serves a dual purpose: firstly, it allows for a certain installation error tolerance between the movable pedal 32 and the supporting structure when the pin 35 is inserted, reducing installation difficulty; secondly, when the movable square tube 12 of the telescopic beam assembly one and the movable square tube 27 of the telescopic beam assembly two are telescopically adjusted, the movable pedal 32 can slide along with the telescopic adjustment, facilitating the reduction and expansion of the distance between the movable pedals 32, ensuring that the movable pedal 32 will not fall off or shift during the telescopic process. If the movable pedal 32 needs to be disassembled, the operator only needs to pull the pin 35 to pull the pin 35 out of the insertion hole of the elongated hole 34 and the hole of the supporting structure below, so that the movable pedal 32 can be easily removed, which facilitates the maintenance and replacement of the pedal, or reduces space occupation during platform transportation and storage.

[0068] The outer rings of telescopic beam assembly one and telescopic beam assembly two are connected to protective components. The protective components include multiple sets of guardrail posts 36. The guardrail posts 36 arranged in a ring on the outer ring are fixedly connected to the fixed corner plate 13. The guardrail posts 36 arranged symmetrically on the inner side are fixedly connected to the fixed frame 10. Chains 37 are fixedly connected between the guardrail posts 36.

[0069] The design of the above structure achieves safety protection through the linkage design of the protective components with the telescopic beam components. The outer guardrail posts 36 are connected to the fixed corner plates 13 at the outer ends of the movable square tubes 12 and 27, while the inner guardrail posts 36 are fixed to the fixed frame 10. When the telescopic beam components 1 and 2 are adjusted for extension and retraction, the outer guardrail posts 36 move synchronously with the movable square tubes 12 and 27, while the inner guardrail posts 36 remain fixed. The chains 37 between the guardrail posts 36 remain taut throughout the movement of the posts, forming a continuous protective barrier that effectively prevents personnel and tools from falling and cushions collisions through its flexible structure. Furthermore, this structure can automatically adjust the protection range according to the platform's extension and retraction without requiring additional disassembly or installation, ensuring the integrity and convenience of the protective function during construction.

[0070] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0071] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable concrete wind power tower hoisting construction platform, comprising a connecting seat one (1) and a connecting seat two (2), characterized in that: the outer circle of the connecting seat one (1) is fixedly installed with square tube sleeves one (3) at equal angles, the square tube sleeves one (3) are connected with inner support square tubes (4) and outer support square tubes (5), the outer circle of the connecting seat two (2) is symmetrically installed with square tube sleeves two (6), the two sides of the square tube sleeves two (6) are fixedly installed with inner connecting square tubes (7) and outer connecting square tubes (8), the rear end of the inner connecting square tubes (7) and the outer connecting square tubes (8) are fixedly connected with the front side of the square tube sleeves one (3) through connecting plates (9); the interiors of the square tube sleeves one (3) and the square tube sleeves two (6) are both provided with telescopic beam assemblies one; the connecting seat one (1) is provided with a telescopic transmission assembly, which is in transmission with the telescopic beam assemblies one; the top of the inner connecting square tubes (7) and the outer connecting square tubes (8) on the front side is fixedly installed with a fixing frame (10), the interior of the fixing frame (10) is provided with a telescopic beam assembly two; the top surfaces of the telescopic beam assemblies one and the telescopic beam assembly two are installed with pedal assemblies; the outer circles of the telescopic beam assemblies one and the telescopic beam assembly two are connected with protection assemblies; the telescopic beam assembly one comprises a movable square tube one (12) slidingly installed in the interiors of the square tube sleeves one (3) and the square tube sleeves two (6), the top of each of the square tube sleeves one (3) and the square tube sleeves two (6) is provided with a limiting groove one (14), the interior of the limiting groove one (14) is slidingly connected with a limiting pin one (15), the bottom end of the limiting pin one (15) is fixedly connected with the movable square tube one (12), the movable square tube one (12) forms a limiting sliding structure with the limiting groove one (14) through the limiting pin one (15); the telescopic beam assembly one further comprises a transmission seat (16) fixedly installed at the bottom of the movable square tube one (12), the interior of the transmission seat (16) is threadedly penetrated with an adjusting screw rod (17), the two ends of the adjusting screw rod (17) are rotatably sleeved with positioning shaft seats (18), the inner end of the adjusting screw rod (17) is fixedly installed with a driven bevel gear (19); the square tube sleeves one (3) and the square tube sleeves two (6) are slidingly connected with the corresponding transmission seats (16) at the bottom, the top ends of the positioning shaft seats (18) corresponding to the square tube sleeves one (3) and the square tube sleeves two (6) are fixedly connected; the telescopic transmission assembly comprises a fixed shaft seat (20) fixedly installed at the inner circle of the connecting seat one (1), the inner circle of the fixed shaft seat (20) is fixedly connected with a connecting rod (21), the bottom end of the connecting rod (21) is fixedly installed with a driving bevel gear (22), the driving bevel gear (22) is perpendicularly meshingly connected with the driven bevel gear (19); The telescopic beam assembly two comprises a movable square tube two (27) symmetrically and slidingly installed in the fixed frame (10), limit grooves two (28) are formed in the top of the two ends of the fixed frame (10), limit pins two (29) are slidingly installed in the limit grooves two (28), the bottom end of the limit pin two (29) is fixedly connected with the movable square tube two (27), and positioning grooves (30) are equidistantly formed in the top surface of the two sides of the movable square tube two (27); the front end of the two sides of the fixed frame (10) is symmetrically penetrated through a positioning pin (31), and the positioning pin (31) is clamped and connected with the movable square tube two (27) through the positioning groove (30).

2. The adjustable hoisting construction platform for a concrete wind power tower of claim 1, wherein: The rear end of the fixed frame (10) is fixedly connected with the square tube sleeve one (3) on the front side through a connecting plate (9), and the outer end top surface of the square tube sleeve one (3), the square tube sleeve two (6) and the fixed frame (10) is fixedly installed with a side pull lifting ring (11).

3. The adjustable hoisting construction platform for a concrete wind power tower of claim 1, wherein: The telescopic transmission assembly further comprises a worm gear (23) fixedly installed at the top end of the connecting rod (21), the outer side of the worm gear (23) is meshed with a worm (24), one end of the worm (24) is rotatably sleeved with a limit shaft seat (25), the bottom end of the limit shaft seat (25) is fixedly connected with the top surface of the connecting seat one (1), the other end of the worm (24) is connected with a servo motor (26) through a shaft coupling, and the bottom of the servo motor (26) is fixedly connected with the top surface of the connecting seat one (1).

4. The adjustable concrete wind tower hoisting construction platform of claim 1, wherein: The outer end of the movable square tube one (12) and the movable square tube two (27) is installed with a fixed angle plate (13), the top of the movable square tube one (12) slidingly connected in the square tube sleeve two (6) is attached with a connecting angle plate (38), the top surface of the connecting angle plate (38), the movable square tube one (12) and the movable square tube two (27) is installed with a pedal assembly, the pedal assembly comprises a movable pedal (32) movably installed at the top of the connecting angle plate (38), the movable square tube one (12) and the movable square tube two (27), the connecting angle plate (38) is fixedly connected with the corresponding movable pedal (32) at the top, the top surface of the two ends of the movable pedal (32) is installed with a pull rod (33), the inside of the two ends of the movable pedal (32) and the connecting angle plate (38) is formed with an oblong hole (34), the inside of the oblong hole (34) is movably penetrated through a bolt (35), and the movable square tube one (12) and the movable square tube two (27) are movably inserted with the corresponding bolt (35) at the top.

5. The adjustable concrete wind tower hoisting construction platform of claim 4, wherein: The protection assembly comprises a plurality of guardrail uprights (36), the guardrail uprights (36) arranged in a ring shape on the outer side are fixedly connected with the fixed angle plate (13), the guardrail uprights (36) symmetrically distributed on the inner side are fixedly connected with the fixed frame (10), and the guardrail uprights (36) are fixedly connected with a chain (37) between them.

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