Supporting device convenient for external operation of tower climbing ladder

By installing a support device on the wind turbine tower ladder, connecting the fixed components to the tower ladder, and adjusting the inclination angle of the steps, the problem of instability of the vertical ladder was solved, realizing a convenient main cable maintenance platform and improving the convenience and safety of operators.

CN223647972UActive Publication Date: 2025-12-09CHINA THREE GORGES RENEWABLES (GRP) CO LTD +2
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Patent Information

Application Number
CN202422857697.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-12-09
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The ladder on the outside of the wind turbine tower is a vertical ladder, which requires operators to hold on to maintain stability, making single-handed maintenance inconvenient.

Method used

A support device is provided to facilitate external operation on a tower ladder. It is connected to the tower ladder through a fixing component and the step plate is fixed to a suitable inclination position through an auxiliary support component to form an operating platform.

Benefits of technology

It allows operators to stand upright and perform main cable maintenance, improving the convenience and safety of maintenance work.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a supporting device capable of facilitating operation outside a tower climbing ladder, and relates to the technical field of supports. The supporting device convenient for the external operation of the tower climbing ladder comprises a supporting wall, a fixing assembly, a pedal and an auxiliary supporting assembly, one end of the pedal is rotationally connected to the supporting wall, the fixing assembly is arranged on the supporting wall and used for being connected with a tower tube crawling ladder, the auxiliary supporting assembly is arranged on the supporting wall and connected with the pedal, and the auxiliary supporting assembly is used for fixing the pedal so that an inclination angle can be formed between the pedal and the supporting wall. According to the supporting device, an operation platform is provided for an operator on the tower crawling ladder, and maintenance work on the main cable of the draught fan is facilitated.
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Description

Technical Field

[0001] This application relates to the field of support technology, and in particular to a support device that facilitates external operations on tower ladders. Background Technology

[0002] During wind power generation, it is usually necessary to regularly maintain and inspect the main cable of the generator set.

[0003] Maintenance of the main cable of a wind turbine generator requires workers to climb the ladder on the outside of the wind turbine tower and perform maintenance work on the main cable from the ladder.

[0004] However, the ladders on the outside of the wind turbine tower are vertical ladders. When operators stand on the ladders of the wind turbine tower, they need to hold onto the ladder to maintain their position. Therefore, operators can only perform maintenance work with one hand, which is inconvenient for operators. Utility Model Content

[0005] This application provides a support device that facilitates external operations on the tower ladder, thereby solving the problem of difficult maintenance of the main cable on the wind turbine tower.

[0006] This application provides a support device for facilitating external operations on tower ladders, including a support wall, a fixing component, a step, and an auxiliary support component;

[0007] One end of the pedal is rotatably connected to the support wall. The fixing component is disposed on the support wall for connection with the tower ladder. The auxiliary support component is disposed on the support wall and connected to the pedal. The auxiliary support component is used to fix the pedal so that the pedal and the support wall form an inclination angle.

[0008] In some embodiments, the fixing assembly includes a connecting horizontal plate and a limiting vertical plate. The connecting horizontal plate is disposed on the top of the support wall, and the limiting vertical plate is connected to the connecting horizontal plate so that the limiting vertical plate, the connecting horizontal plate, and the support wall form a placement cavity with a bottom opening. The placement cavity is used to be mounted on the tower ladder and to allow the support wall to abut against the tower ladder.

[0009] In some embodiments, a rotating shaft is provided at the bottom of the support wall, and one end of the pedal is rotatably sleeved on the rotating shaft.

[0010] In some embodiments, the auxiliary support assembly includes a first connecting rod and a second connecting rod, the first connecting rod being hinged to the end of the pedal away from the support wall, and one end of the second connecting rod being hinged to the first connecting rod and the other end being hinged to the support wall.

[0011] In some embodiments, the auxiliary support assembly further includes an adjustment member disposed on the first connecting rod for adjusting the hinge position of the first connecting rod and the second connecting rod.

[0012] In some embodiments, the adjusting member includes a fixing bolt, the second connecting rod has an adjusting groove, the fixing bolt is disposed on the first connecting rod, and the fixing bolt is slidably connected in the adjusting groove as a hinge axis of the first connecting rod.

[0013] In some embodiments, the angle between the pedal and the support wall is greater than or equal to 0° and less than or equal to 90°.

[0014] In some embodiments, the auxiliary support component is a connecting rope, one end of which is connected to the support wall and the other end of which is connected to the pedal.

[0015] In some embodiments, the support wall is provided with a handle.

[0016] In some embodiments, the pedal is provided with an anti-slip mat.

[0017] This application provides a support device for facilitating external operations on a tower ladder. It connects to the tower ladder using a fixing component and fixes the footboard to a suitable angle between it and the support wall using an auxiliary support component, thereby forming a platform for operators to stand and operate, so as to facilitate the maintenance of the main cable outside the tower. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 A schematic diagram of the structure of a support device for facilitating external operations on a tower ladder, provided in an embodiment of this application;

[0020] Figure 2 for Figure 1 Schematic diagram of the auxiliary support component Figure 1 ;

[0021] Figure 3 for Figure 1 Schematic diagram of the auxiliary support component Figure 2 .

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Support wall; 110. Rotating shaft; 120. Handle;

[0024] 200. Fixing component; 210. Connecting horizontal plate; 220. Limiting vertical plate; 230. Placement cavity;

[0025] 300. Pedal; 310. Anti-slip mat;

[0026] 400, Auxiliary support assembly; 410, First connecting rod; 420, Second connecting rod; 430, Adjusting component; 431, Fixing bolt; 432, Adjusting groove; 440, Connecting rope.

[0027] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] During wind power generation, it is usually necessary to regularly maintain and inspect the main cable of the generator set.

[0033] Maintenance of the main cable of a wind turbine generator requires workers to climb the ladder on the outside of the turbine tower and perform maintenance work on the main cable from there. However, the ladder on the outside of the turbine tower is an upright ladder, and operators need to hold onto it to maintain their position. Therefore, operators can only perform maintenance work with one hand, which is inconvenient for them.

[0034] To address the aforementioned issues, this application provides a support device that facilitates external operations on tower ladders. By using a fixing component to connect with the tower ladder and an auxiliary support component to fix the footboard at a suitable angle to the support wall, a platform is formed for operators to stand and work on, facilitating the maintenance of the main cable outside the tower.

[0035] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0036] This application provides a support device that facilitates external operations on tower ladders, referring to... Figure 1 The support device for facilitating external operations on the tower ladder includes a support wall 100, a fixing component 200, a step 300, and an auxiliary support component 400.

[0037] One end of the tread plate 300 is rotatably connected to the support wall 100. The fixing component 200 is disposed on the support wall 100 for connection with the tower ladder. The auxiliary support component 400 is disposed on the support wall 100 and connected to the tread plate 300. The auxiliary support component 400 is used to fix the tread plate 300 so that an angle is formed between the tread plate 300 and the support wall 100.

[0038] By adopting the above technical solution, the operator can bring the entire device to a suitable position on the tower ladder for main cable maintenance, connect the fixing component 200 to the tower ladder, and fix the step 300 to a suitable angle between it and the support wall 100 through the auxiliary support component 400 to form a platform for the operator to stand and operate. The operator can then stand on the step 300 to maintain the main cable, which facilitates the maintenance of the main cable outside the tower.

[0039] In some embodiments, refer to Figure 1 The fixing component 200 includes a connecting horizontal plate 210 and a limiting vertical plate 220. The connecting horizontal plate 210 is disposed on the top of the support wall 100, and the limiting vertical plate 220 is connected to the connecting horizontal plate 210 so that the limiting vertical plate 220, the connecting horizontal plate 210 and the support wall 100 form a placement cavity 230 with a bottom opening. The placement cavity 230 is used to be erected on the tower ladder and to make the support wall 100 abut against the tower ladder.

[0040] The connecting horizontal plate 210 is welded and fixed to the top of the support wall 100, which is in a vertical position. The connecting horizontal plate 210 is located on the side of the support wall 100 furthest from the pedal 300. The limiting vertical plate 220 is welded and fixed to the side of the connecting horizontal plate 210 furthest from the support wall 100, and is parallel to the support wall 100. Thus, the limiting vertical plate 220, the connecting horizontal plate 210, and the support wall 100 form a bottom-opening placement cavity 230, which is an inverted U-shaped groove.

[0041] During use, the support wall 100 is hung on the steps of the tower ladder, so that the steps are engaged in the placement cavity 230. At the same time, the support wall 100 is close to multiple steps. Thus, through the mutual cooperation of the limiting vertical plate 220 and the support wall 100, the entire device is fixed and easy to put on and take off, so that the entire device can be installed on any step of the tower ladder and adjusted quickly and easily.

[0042] For example, the fixing component 200 can also be a hook, which is directly fixed to the side of the support wall 100 away from the footplate 300. The hook is used to attach to the steps of the tower ladder. This also enables the connection between the device and the tower ladder.

[0043] For example, the fixing component 200 can also be a fixing clip, which is fixed by bolt adjustment and is installed on the side of the support wall 100 away from the footplate 300. In use, the two clamping plates of the fixing clip are clamped onto the steps of the tower ladder and fixed by bolts, which can also achieve the connection between the device and the tower ladder.

[0044] The load-bearing capacity of the fixed component 200 is greater than 150kg, in order to facilitate the support of operators.

[0045] Furthermore, an anti-slip layer can be provided on the side wall of the placement cavity 230. The anti-slip layer can be a rubber pad. The anti-slip layer helps reduce the sliding and displacement of the fixing component 200 after it is connected to the tower ladder, improves the stability of the connection, and thus improves the safety of the operators.

[0046] The pedal 300 is configured with a length of 400mm and a width of 300mm; and the pedal 300 has a thickness of not less than 10mm, so that the load-bearing capacity of the pedal 300 is greater than or equal to 120kg. In other embodiments, the dimensions of the pedal 300 can be adapted to actual needs.

[0047] In some embodiments, refer to Figure 1 A rotating shaft 110 is provided at the bottom of the support wall 100, and one end of the pedal 300 is rotatably sleeved on the rotating shaft 110.

[0048] By adopting the above technical solution, one end of the pedal 300 is rotatably connected to the rotating shaft 110, so that the pedal 300 can rotate around the bottom of the support wall 100, so as to rotate the pedal 300 to the required angle to form a platform for the operator to stand on. It also facilitates the stacking of the pedal 300 and the support wall 100, which is beneficial for the transportation and carrying of the device.

[0049] Specifically, a bearing is fitted onto the rotating shaft 110, and one end of the pedal 300 is connected to the outer ring of the bearing to facilitate the rotation of the pedal 300. The bearing used in this application should have a load-bearing capacity greater than 150 kg.

[0050] In some embodiments, refer to Figure 1 and Figure 2 The auxiliary support assembly 400 includes a first connecting rod 410 and a second connecting rod 420. The first connecting rod 410 is hinged to the end of the pedal 300 away from the support wall 100. One end of the second connecting rod 420 is hinged to the first connecting rod 410, and the other end is hinged to the support wall 100.

[0051] The auxiliary support assembly 400 is provided in two sets, which are symmetrically arranged on both sides of the pedal 300 to make the connection of the pedal 300 more stable.

[0052] One end of the first connecting rod 410 is hinged to the end of the first pedal 300 away from the support wall 100, and the other end is hinged to the second connecting rod 420. The other end of the second connecting rod 420 is hinged to the top of the support wall 100. Furthermore, the first connecting rod 410 is hinged to the side wall of the pedal 300, and the second connecting rod 420 is hinged to the side wall of the support wall 100, thereby reducing the impact of the auxiliary support assembly 400 on the retraction and extension of the pedal 300.

[0053] The included angle between the pedal 300 and the support wall 100 is greater than or equal to 0° and less than or equal to 90°.

[0054] When the first connecting rod 410 and the second connecting rod 420 are fully extended, the angle between the pedal 300 and the support wall 100 is 90°, and the pedal 300 is perpendicular to the support wall 100. Normally, the pedal 300 in this state is used as a platform for the operator to stand on.

[0055] In some embodiments, the auxiliary support assembly 400 further includes an adjustment member 430 disposed on the first connecting rod 410 for adjusting the hinge position of the first connecting rod 410 and the second connecting rod 420.

[0056] By changing the hinge position of the first connecting rod 410 and the second connecting rod 420, the connection length of the first connecting rod 410 and the second connecting rod 420 is changed, thereby adjusting the angle between the pedal 300 and the support wall 100, so as to adjust the position of the pedal 300.

[0057] In some embodiments, refer to Figure 2 The adjusting component 430 includes a fixing bolt 431, and an adjusting groove 432 is provided on the second connecting rod 420. The fixing bolt 431 is disposed on the first connecting rod 410 and is slidably connected in the adjusting groove 432 as a hinge axis of the first connecting rod 410.

[0058] The adjusting groove 432 is arranged along the length of the second connecting rod 420, and the fixing bolt 431 slides within the adjusting groove 432 along its length. A through hole is provided at the end of the first connecting rod 410 furthest from the pedal 300. The fixing bolt 431 passes through the through hole and into the adjusting groove 432 to connect the first connecting rod 410 to the second connecting rod 420. Furthermore, when the fixing bolt 431 is not tightened, the first connecting rod 410 can rotate around the fixing bolt 431 to adjust its position.

[0059] When the fixing bolt 431 is located at the end of the adjusting groove 432 near the pedal 300, the included angle between the pedal 300 and the support wall 100 is 90°.

[0060] By adopting the above technical solution, during use, the position of the fixing bolt 431 can be adjusted according to the actual situation, and then the fixing bolt 431 can be tightened to fix the first connecting rod 410 and the second connecting rod 420, thereby facilitating the fixing of the pedal 300 to different angles with the supporting wall 100. For example, adjusting the angle between the pedal 300 and the supporting wall 100 to 85° gives the pedal 300 a certain tilt angle, reducing the possibility of the operator accidentally stepping off the pedal 300 while standing on it. At the same time, it also reduces the possibility of tools placed on the pedal 300 slipping off.

[0061] In some embodiments, refer to Figure 1 and Figure 3 The auxiliary support component 400 is a connecting rope 440, one end of which is connected to the support wall 100, and the other end of which is connected to the pedal 300.

[0062] The connecting rope 440 is used as an auxiliary support component 400. One end of the connecting rope 440 is fixed to the top of the support wall 100, and the other end of the connecting rope 440 is fixed to the pedal 300. When the connecting rope 440 is straightened, the angle between the pedal 300 and the support wall 100 is 90 degrees.

[0063] The pedal 300 is held in place by the connecting rope 440 to support the weight of the operator. The connecting rope 440 is a flexible rope, which is beneficial for the storage and placement of the device.

[0064] The connecting rope 440 is a steel cable with a diameter of 8mm or more and a load-bearing capacity of 150kg or more. Holes are provided on the pedal 300 and the support wall 100 for installing the connecting rope 440. Protective measures are taken at the connection points between the connecting rope 440 and the pedal 300 and support wall 100. For example, a protective pad, such as a rubber pad, is placed at the connection point to reduce wear on the connecting rope 440, extend its service life, and improve operator safety.

[0065] In some embodiments, a handle 120 is provided on the support wall 100.

[0066] In this embodiment, two handles 120 are provided, and the two handles 120 are symmetrically arranged on both sides of the support wall 100 to facilitate the operator to move and carry the device.

[0067] In some embodiments, the pedal 300 is provided with an anti-slip pad 310.

[0068] The anti-slip mat 310 can be a rubber mat. The anti-slip mat 310 helps to reduce the possibility of operators slipping on the pedal 300 and improves the safety of operators.

[0069] This application provides a support device that facilitates external operations on a tower ladder. The operator brings the entire device to a suitable location on the tower ladder for main cable maintenance, connects the fixing component 200 to the tower ladder, and makes the support wall 100 close to the steps of the tower ladder. The auxiliary support component 400 fixes the step 300 to a suitable angle between it and the support wall 100, forming a platform for the operator to stand and operate. The operator can then stand on the step 300 to maintain the main cable, thus facilitating the maintenance of the main cable outside the tower.

[0070] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0071] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A support device for facilitating external operations on a tower ladder, characterized in that, Includes support walls, fixing components, pedals, and auxiliary support components; One end of the pedal is rotatably connected to the support wall. The fixing component is disposed on the support wall for connection with the tower ladder. The auxiliary support component is disposed on the support wall and connected to the pedal. The auxiliary support component is used to fix the pedal so that the pedal and the support wall form an inclination angle.

2. The support device for facilitating external operation of the tower ladder according to claim 1, characterized in that, The fixing assembly includes a connecting horizontal plate and a limiting vertical plate. The connecting horizontal plate is disposed on the top of the support wall, and the limiting vertical plate is connected to the connecting horizontal plate so that the limiting vertical plate, the connecting horizontal plate, and the support wall form a placement cavity with a bottom opening. The placement cavity is used to be mounted on the tower ladder and to allow the support wall to abut against the tower ladder.

3. The support device for facilitating external operation of the tower ladder according to claim 1, characterized in that, The bottom of the support wall is provided with a rotating shaft, and one end of the pedal is rotatably sleeved on the rotating shaft.

4. The support device for facilitating external operation of the tower ladder according to claim 1, characterized in that, The auxiliary support assembly includes a first connecting rod and a second connecting rod. The first connecting rod is hinged to the end of the pedal away from the support wall. One end of the second connecting rod is hinged to the first connecting rod, and the other end is hinged to the support wall.

5. The support device for facilitating external operation of the tower ladder according to claim 4, characterized in that, The auxiliary support assembly also includes an adjusting member disposed on the first connecting rod for adjusting the hinge position of the first connecting rod and the second connecting rod.

6. The support device for facilitating external operation of the tower ladder according to claim 5, characterized in that, The adjusting component includes a fixing bolt, and the second connecting rod has an adjusting groove. The fixing bolt is disposed on the first connecting rod and is slidably connected in the adjusting groove as a hinge axis of the first connecting rod.

7. The support device for facilitating external operation of the tower ladder according to claim 6, characterized in that, The angle between the pedal and the supporting wall is greater than or equal to 0° and less than or equal to 90°.

8. The support device for facilitating external operation of tower ladders according to any one of claims 1-3, characterized in that, The auxiliary support component is a connecting rope, one end of which is connected to the support wall and the other end of which is connected to the pedal.

9. The support device for facilitating external operation of the tower ladder according to any one of claims 1-7, characterized in that, The support wall is equipped with a handle.

10. The support device for facilitating external operation of the tower ladder according to any one of claims 1-7, characterized in that, The pedal is equipped with an anti-slip mat.