Portable mobile maintenance platform

The design of the portable mobile maintenance platform solves the problem of lack of footholds for maintaining the conductive rails of wind turbines, providing a solution for stable standing and mobile maintenance, thus improving maintenance efficiency and safety.

CN224532894UActive Publication Date: 2026-07-21INNER MONGOLIA SIHUA NEW ENERGY DEVELOPMENT CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA SIHUA NEW ENERGY DEVELOPMENT CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The conductive rails of the wind turbine are suspended vertically on the inner wall of the tower, leaving maintenance personnel with no foothold and making it impossible to effectively inspect and maintain the conductive rails.

Method used

Design a portable mobile maintenance platform, including a ladder and a maintenance platform. The platform is connected to the ladder beam and a fixed structure by a rotating connection, providing a stable standing platform. The stability is enhanced by a connecting arm and a rope structure, enabling the maintenance platform to be moved and protected safely.

Benefits of technology

It enables maintenance personnel to stand and move stably on the conductive rail for maintenance, improving maintenance efficiency and safety, and is suitable for maintenance of suspended connection nodes.

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Abstract

The utility model belongs to the technical field of overhaul tool, propose a kind of portable mobile maintenance platform, comprising: cat ladder and maintenance platform, maintenance platform is rotatably connected with the crossbeam of any height on cat ladder, and cat ladder and maintenance platform are detachably connected, and maintenance platform is connected with maintenance conductor rail and the side of cat ladder corresponding preset fixed structure respectively by connecting structure. Through maintenance platform, it is convenient for maintenance personnel to stand, and maintenance platform is rotatably connected with the crossbeam of any height on cat ladder, so that maintenance platform can move left and right, realize to the maintenance of conducting rail, and the cooperation of connecting structure and fixed structure can be more stable to the maintenance platform suspended in the air.
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Description

Technical Field

[0001] This utility model belongs to the field of maintenance tool technology, and specifically relates to a portable mobile maintenance platform. Background Technology

[0002] For ease of manufacturing and transportation, the conductive rails of wind turbines are constructed by interlocking small components, with each component secured by bolts at the joints. Maintenance personnel need to periodically check whether the bolt tightening torque meets requirements. To inspect the conductive rails, personnel need to carry tools such as wrenches to check the joints of each component; loose bolts can be tightened with a wrench. Ladders are installed on the wind turbine tower, allowing maintenance personnel to access the joints of the conductive rail components to check the bolt tightening torque.

[0003] However, the conductive rails of the wind turbine are suspended vertically on the inner wall of the tower, with all connection nodes suspended in the air, leaving maintenance personnel with no foothold and making it impossible to inspect the conductive rails. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a portable mobile maintenance platform, comprising: a ladder and a maintenance platform. The maintenance platform is rotatably connected to a crossbeam at any height on the ladder, and the ladder and the maintenance platform are detachably connected. The maintenance platform is connected to a maintenance conductive rail and a corresponding preset fixed structure on one side of the ladder via a connecting structure.

[0005] Optionally, the maintenance platform includes a connecting arm and a platform. One end of the connecting arm is rotatably connected to a crossbeam at any height on the ladder, and the other end is connected to the platform. The platform is connected to the maintenance conductive rail and a corresponding fixed structure on one side of the ladder through the connecting structure.

[0006] Optionally, the platform includes a base plate and a surrounding frame, the connecting arm is connected to the base plate, one end of the connecting structure is connected to the base plate, and the other end is connected to the corresponding fixing structure, and the surrounding frame is arranged along the circumference of the base plate.

[0007] Optionally, a first connection point, a second connection point, and a third connection point are provided on the base plate. The first connection point and the second connection point are located at the edge of the base plate and away from the ladder, and the first connection point and the second connection point are on the periphery of the frame. The third connection point is located in the central area of ​​the base plate and on the opposite side of the frame. The first connection point and the second connection point are respectively connected to the connecting structure, and the connecting arm is connected to the third connection point.

[0008] Optionally, the connection structure includes two pull ropes, one end of which is connected to the inspection platform, and the other end of which is connected to a corresponding preset fixing structure.

[0009] Optionally, the fixing structure has two hanging points, and the two hanging points are respectively connected to the two corresponding pull ropes.

[0010] Optionally, it also includes a pivot shaft that rotatably connects the ladder and the maintenance platform.

[0011] Optionally, two connection holes are provided at both ends of the connecting arm, one of which mates with the third connection point, and the other connection hole corresponds to the rotation hole of the crossbeam on the ladder.

[0012] Optionally, the enclosure has an opening facing the direction of the ladder.

[0013] Optionally, the first connection point, the second connection point, and the third connection point may be connecting posts.

[0014] This utility model provides a portable mobile maintenance platform. The maintenance platform allows maintenance personnel to stand comfortably, and the platform is rotatably connected to a crossbeam at any height on the ladder, enabling the platform to move left and right for maintenance of the conductive rail. The combination of the connecting and fixing structures ensures greater stability of the platform suspended in the air.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the portable mobile maintenance platform in an embodiment of this utility model is shown; Figure 2 A schematic diagram of the portable mobile maintenance platform in an embodiment of this utility model is shown. Figure 3 A side view of the portable mobile maintenance platform station in an embodiment of this utility model is shown; Figure 4 A schematic diagram of the connecting arm of the portable mobile maintenance platform in an embodiment of this utility model is shown.

[0018] In the diagram, 1 is the ladder; 2 is the maintenance platform; 3 is the pivot; 21 is the connecting arm; 22 is the platform; 23 is the first connection point; 24 is the second connection point; 25 is the third connection point; 211 is the connecting hole; 221 is the base plate; and 222 is the frame. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figure 1 As shown, this utility model provides a portable mobile maintenance platform, including: a ladder 1 and a maintenance platform 2. The maintenance platform 2 is rotatably connected to a crossbeam at any height on the ladder 1, and the ladder 1 and maintenance platform 2 are detachably connected. The maintenance platform 2 is connected to the maintenance conductive rail and a corresponding preset fixed structure (not shown) on one side of the ladder 1 via a connecting structure (not shown). By adding a mechanical connection between the maintenance platform and the ladder 1 inside the tower for rotation during maintenance of the conductive rail, it is convenient for maintenance personnel to stand, and a protective frame 222 is provided to effectively protect personnel. It can also move left and right to perform maintenance on the conductive rail of the wind turbine. In addition, it can also be used to repair other equipment, achieving multiple uses. It should be noted that the maintenance conductive rail and the ladder 1 are both inside a circular tower cavity, with a gap between them. The maintenance conductive rail is set along the inner wall of the cavity, and the ladder 1 can be set at an angle relative to the inner wall of the cavity or along the inner wall of the cavity. The fixed structures are respectively installed on the inner wall of the tower, close to ladder 1 and maintenance conductive rail.

[0021] In one embodiment, the maintenance platform 2 includes a connecting arm 21 and a platform 22. One end of the connecting arm 21 is rotatably connected to a crossbeam at any height on the ladder 1, and the other end is connected to the platform 22. The platform 22 is connected to the maintenance conductive rail and a corresponding preset fixed structure on one side of the ladder 1 via a connecting structure. The connecting arm 21 extends the suspended position of the platform 22, thereby facilitating the maintenance of distant fault points. The connecting arm 21 can be made of alloy material, or other metal materials, depending on actual needs. The platform 22 can be made of alloy material, or other materials such as wood. The connecting arm 21 has an elliptical or rectangular shape. The platform 22 has a circular or rectangular shape. The connecting arm 21 and the platform 22 can be designed according to actual conditions, and no shape restrictions are imposed here.

[0022] like Figure 2 As shown, in one embodiment, the platform 22 includes a base plate 221 and a surrounding frame 222. A connecting arm 21 is connected to the base plate 221. One end of the connecting structure is connected to the base plate 221, and the other end is connected to a corresponding fixed structure. The surrounding frame 222 is arranged circumferentially around the base plate 221. The surrounding frame 222 provides a barrier, effectively protecting maintenance personnel and preventing them from being in a dangerous situation during work. The structure of the surrounding frame 222 can be consistent with the shape of the base plate 221.

[0023] In one embodiment, a first connection point 23, a second connection point 24, and a third connection point 25 are provided on the base plate 221. The first connection point 23 and the second connection point 24 are located at the edge of the base plate 221 and away from the ladder 1, and are on the periphery of the enclosure 222. The third connection point 25 is located in the central area of ​​the base plate 221 and on the opposite side of the enclosure 222. The first connection point 23 and the second connection point 24 are respectively connected to the connecting structure, and the connecting arm 21 is connected to the third connection point 25. The connection with the connecting structure is achieved through the first connection point 23 and the second connection point 24, making the platform 22 structure more stable under the tension of the connecting structure. The connection between the connecting arm 21 and the base plate 221 is achieved through the third connection point 25, making the base plate 221 stably fixed on the connecting arm 21.

[0024] In one embodiment, the connecting structure includes two pull ropes, one end of which is connected to the maintenance platform 2, and the other end is connected to a corresponding preset fixing structure. Optionally, the pull ropes can be made of nylon braid or metal wire braid. The two pull ropes allow the platform 22 to be suspended more stably in the air, further improving safety. It should be noted that the two pull ropes and the connecting arm 21 together provide support for the platform 22, improving its stability and safety.

[0025] In one embodiment, the fixing structure consists of two hanging points, each connected to one of the corresponding pull ropes. Optionally, the hanging point can be a column structure with a fixing hole for connecting to the pull rope. Alternatively, the hanging point can be on a dedicated fixing block, specifically positioned near the corresponding ladder 1 and conductive rail; multiple fixing blocks may be used.

[0026] like Figure 4 As shown, in one embodiment, a rotating shaft 3 is also included, which rotatably connects the ladder 1 and the maintenance platform 2. The rotating shaft 3 enables the maintenance platform 2 to rotate, facilitating its movement to a predetermined position, thereby enabling the repair of faults at the target location and improving repair efficiency. The rotating shaft 3 can be any existing structure.

[0027] like Figure 3 and Figure 4 As shown, in one embodiment, two connecting holes 211 are provided at both ends of the connecting arm 21. One connecting hole 211 mates with the third connecting point 25, and the other connecting hole 211 corresponds to the rotation hole of the crossbeam on the ladder 1. It should be noted that the rotating shaft 3 is located within the connecting hole 211 and the rotation hole, thereby enabling the connecting arm 21 to rotate. The connection hole 211 mates with the third connecting point 25, achieving a fixed connection between the connecting arm 21 and the platform 22.

[0028] In one embodiment, the enclosure 222 has an opening facing the ladder 1. The opening in the enclosure 222 facilitates maintenance personnel to enter or exit the enclosure 222.

[0029] In one embodiment, the first connection point 23, the second connection point 24, and the third connection point 25 can be connecting posts. It should be noted that threads can be provided on the connecting posts to facilitate mating with the connecting structure; that is, corresponding nuts can be provided at both ends of the pull rope in the connecting structure, making installation or disassembly more convenient.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable mobile maintenance platform, characterized in that, include: The ladder (1) and the inspection platform (2) are rotatably connected to a crossbeam at any height on the ladder (1), and the ladder (1) and the inspection platform (2) are detachably connected. The inspection platform (2) is connected to the inspection conductive rail and a corresponding preset fixed structure on one side of the ladder (1) through a connection structure.

2. The portable mobile maintenance platform according to claim 1, characterized in that, The maintenance platform (2) includes a connecting arm (21) and a platform (22). One end of the connecting arm (21) is rotatably connected to a crossbeam at any height on the ladder (1), and the other end is connected to the platform (22). The platform (22) is connected to the maintenance conductive rail and the fixed structure corresponding to one side of the ladder (1) respectively through the connecting structure.

3. The portable mobile maintenance platform according to claim 2, characterized in that, The platform (22) includes a base plate (221) and a surrounding frame (222). The connecting arm (21) is connected to the base plate (221). One end of the connecting structure is connected to the base plate (221), and the other end is connected to the corresponding fixing structure. The surrounding frame (222) is arranged around the base plate (221).

4. The portable mobile maintenance platform according to claim 3, characterized in that, A first connection point (23), a second connection point (24), and a third connection point (25) are provided on the base plate (221). The first connection point (23) and the second connection point (24) are located at the edge of the base plate (221) and away from the ladder (1). The first connection point (23) and the second connection point (24) are on the periphery of the frame (222). The third connection point (25) is located in the central area of ​​the base plate (221) and on the opposite side of the frame (222). The first connection point (23) and the second connection point (24) are respectively connected to the connecting structure. The connecting arm (21) is connected to the third connection point (25).

5. The portable mobile maintenance platform according to claim 1, characterized in that, The connection structure includes two pull ropes, one end of which is connected to the inspection platform (2), and the other end is connected to the corresponding preset fixing structure.

6. The portable mobile maintenance platform according to claim 5, characterized in that, The fixing structure has two hanging points, and the two hanging points are respectively connected to the two corresponding pull ropes.

7. The portable mobile maintenance platform according to claim 1, characterized in that, It also includes a pivot (3) through which the ladder (1) and the maintenance platform (2) are rotatably connected.

8. The portable mobile maintenance platform according to claim 4, characterized in that, Two connecting holes (211) are provided at both ends of the connecting arm (21), one of the connecting holes (211) is engaged with the third connecting point (25), and the other connecting hole (211) corresponds to the rotating hole of the crossbeam on the ladder (1).

9. The portable mobile maintenance platform according to claim 3, characterized in that, The enclosure (222) has an opening facing the ladder (1).

10. The portable mobile maintenance platform according to claim 4, characterized in that, The first connection point (23), the second connection point (24) and the third connection point (25) can be connecting posts.