Climbing device for inside of wind power tower
By introducing components such as anti-slip pedals, pressure sensors, limit pins, and electric push rods into the wind turbine tower climbing device, the issues of safety and space utilization of the climbing device have been solved, achieving safe climbing and space optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI BAOTIANLI FASTENER MANUFACTURING CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-26
AI Technical Summary
The existing wind turbine tower climbing devices lack monitoring equipment, which makes it impossible to guarantee the safety of maintenance personnel during the climbing process. At the same time, the standing platform cannot be folded and stored, occupying internal space of the tower and affecting maintenance activities.
The design includes an anti-slip pedal, a pressure sensor, a limit pin, a retaining ring groove, an electric push rod, and a support plate. The pressure sensor monitors the pressure when maintenance personnel stand on it, and controls the electric push rod to insert into the retaining ring groove of the limit pin to fix the guardrail and the rotating rod, ensuring safety. The support plate can be stored when not in use.
This achieves safety assurance and improved space utilization efficiency during the climbing process, ensuring the safety of maintenance personnel while reducing the space occupied by equipment inside the tower.
Smart Images
Figure CN224411158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine tower technology, specifically to a climbing device for the inside of a wind turbine tower. Background Technology
[0002] Wind turbine towers typically have internal climbing ladders to facilitate maintenance personnel access to the top of the tower for repairs. The internal climbing mechanism is usually electrically powered, allowing for rapid ascent and descent, thus improving maintenance efficiency.
[0003] When using the existing climbing device, there is a lack of monitoring devices when maintenance personnel stand on the platform, which means that the guardrail cannot be locked when maintenance personnel are standing, thus compromising the safety of maintenance personnel during the climbing process. In addition, the existing climbing device cannot fold and store the standing platform, which occupies the internal space of the tower and affects the movement of maintenance personnel inside the tower. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a climbing device for the inside of wind turbine towers. Through the inclusion of anti-slip pedals, pressure sensors, limit pins, retaining ring grooves, electric push rods, and support plates, when maintenance personnel stand on the anti-slip pedals, the pressure sensor detects pressure, causing the electric push rod to receive a signal and extend and insert into the retaining ring groove of the limit pin. This connects and secures the guardrail and rotating rod, preventing the rotating rod from falling off and ensuring the safety of maintenance personnel standing on the anti-slip pedals. This effectively solves the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a climbing device for the inside of a wind turbine tower, including a ladder frame, a limit guide rail vertically installed at the center of the ladder frame, a pole frame installed on the limit guide rail, a sliding seat fixedly connected to the lower end of the pole frame, a support plate hinged to the upper side of the sliding seat, an anti-slip pedal provided on the upper side of the support plate, pressure sensors provided at the four corners of the lower side of the anti-slip pedal, guardrails rotatably connected to both sides of the pole frame, a rotating rod rotatably connected to one guardrail, a locking groove provided at one end of the other guardrail, a limit pin connected to one side of the locking groove via a signal line, a retaining ring groove provided in the middle of the limit pin, an alarm light provided on the upper side of the guardrail near the locking groove, anti-rotation limit rods provided at the rotatable connection points between the two guardrails and the pole frame, a safety ring provided at the center of the pole frame, and an electric push rod provided on the inner side of one end of the rotating rod.
[0006] Furthermore, the ladder frame is connected to a fixed leg, and a fixed pulley is installed at the upper end of the ladder frame, with a steel cable wound around the fixed pulley.
[0007] Furthermore, a drive motor is provided on the lower end of the ladder frame away from the sliding seat, and the output end of the drive motor is connected to a steel cable reel through a reducer.
[0008] Furthermore, the limiting guide rail is connected to the upright frame via a limiting pulley seat, and the steel cable is connected to the upright frame via a steel cable lock.
[0009] Furthermore, the fixed leg is bolted to the ladder frame, and the fixed pulley is bolted to the ladder frame.
[0010] Furthermore, the drive motor is bolted to the ladder frame, the support plate is hinged to the anti-slip pedal, and the lower side of the anti-slip pedal is fixedly connected to the pressure sensor.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model, through the design of an anti-slip pedal, pressure sensor, limit pin, retaining ring groove, electric push rod, and support plate, ensures that when maintenance personnel stand on the anti-slip pedal, the pressure sensor detects the pressure, causing the electric push rod to receive the signal. The electric push rod then extends and inserts into the retaining ring groove of the limit pin, thus connecting and fixing the guardrail and rotating rod together, preventing the rotating rod from falling off, and ensuring the safety of maintenance personnel standing on the anti-slip pedal.
[0013] 2. This utility model, through the setting of a sliding seat and a support plate, allows the support plate to be rotated upwards and stored when not in use, avoiding the support plate and anti-slip pedal occupying the internal space of the tower and facilitating maintenance operations for maintenance personnel. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;
[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;
[0017] Figure 4 This utility model Figure 1 A schematic diagram of the main structure of the anti-slip pedal;
[0018] Figure 5 This utility model Figure 1 A side sectional view of the structure when the rotating rod is connected to the limiting pin.
[0019] In the diagram: 1. Ladder frame; 2. Fixed leg; 3. Limiting guide rail; 4. Fixed pulley; 5. Steel cable; 6. Support plate; 7. Anti-slip pedal; 8. Guardrail; 9. Steel cable reel; 10. Drive motor; 11. Sliding seat; 12. Rotating rod; 13. Safety ring; 14. Upright frame; 15. Limiting pin; 16. Locking rod groove; 17. Pressure sensor; 18. Anti-rotation limiting rod; 19. Electric push rod; 20. Alarm light; 21. Locking ring groove. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5 This embodiment provides a technical solution: a climbing device inside a wind turbine tower, including a ladder frame 1. A limit guide rail 3 is vertically installed at the center of the ladder frame 1. A pole frame 14 is installed on the limit guide rail 3. A sliding seat 11 is fixedly connected to the lower end of the pole frame 14. A support plate 6 is hinged to the upper side of the sliding seat 11. An anti-slip pedal 7 is provided on the upper side of the support plate 6. Pressure sensors 17 are provided at the four corners of the lower side of the anti-slip pedal 7. Guardrails 8 are rotatably connected to both sides of the pole frame 14. One guardrail 8 is rotated... A rotating rod 12 is connected to the other guardrail 8. One end of the guardrail 8 is provided with a locking groove 16. A limit pin 15 is connected to one side of the locking groove 16 via a signal line. A retaining ring groove 21 is opened in the middle of the limit pin 15. An alarm light 20 is provided on the upper side of the guardrail 8 near the locking groove 16. An anti-rotation limit rod 18 is provided at the rotatable connection position between the two guardrails 8 and the upright frame 14. A safety ring 13 is provided at the center of the upright frame 14. An electric push rod 19 is provided on the inner side of one end of the rotating rod 12.
[0022] like Figure 1-5As shown, during use, the ladder frame 1 is fixedly connected to the inner wall of the tower by the fixing legs 2, so that the side of the ladder frame 1 with the anti-slip pedal 7 faces the tower wall. The fixing legs 2 are evenly spaced on the ladder frame 1 to effectively fix the ladder frame 1. The drive motor 10 is connected to the power supply. The sliding seat 11 and the upright frame 14 are equipped with control switches for the drive motor 10, so that maintenance personnel standing on the anti-slip pedal 7 can control the start and stop of the drive motor 10. In turn, the drive motor 10 drives the steel cable reel 9 to rotate, winding the steel cable 5 onto the steel cable reel 9, or releasing the steel cable wound on the steel cable reel 9. This allows the sliding seat 11 and the upright frame 14 to move up and down along the limit guide rail 3, so that maintenance personnel on the anti-slip pedal 7 can move freely inside the tower. When the maintenance personnel are standing on the anti-slip pedal 7, the guardrail 8 is rotated downwards to a horizontal position. The anti-rotation limit rod 18 prevents the guardrail 8 from rotating further downwards, thus maintaining a horizontal position and providing protection for the standing maintenance personnel. Then, the rotating rod 12 is rotated out of the guardrail 8, and one end of the rotating rod 12 is rotated into the locking rod groove 16. The guardrail 8 and the rotating rod 12 are then connected by a limit pin 15. When the limit pin 15 is inserted into the rotating rod 12, the pressure sensor 17 detects that someone is standing and sends a signal to the electric push rod 19 through the control device. This causes the electric push rod 19 to extend and engage in the retaining ring groove 21, ensuring a secure connection between the rotating rod 12 and the guardrail 8 and guaranteeing the safety of the maintenance personnel.
[0023] A fixed leg 2 is connected to the ladder frame 1, and a fixed pulley 4 is installed at the upper end of the ladder frame 1. A steel cable 5 is wound on the fixed pulley 4.
[0024] A drive motor 10 is installed on the side of the lower end of the ladder frame 1 away from the sliding seat 11. The output end of the drive motor 10 is connected to a steel cable reel 9 through a reducer.
[0025] The limiting guide rail 3 is connected to the upright frame 14 through the limiting pulley seat, and the steel cable 5 is connected to the upright frame 14 through the steel cable lock.
[0026] The fixed leg 2 is connected to the ladder frame 1 by bolts, and the fixed pulley 4 is connected to the ladder frame 1 by bolts.
[0027] The drive motor 10 is bolted to the ladder frame 1, the support plate 6 is hinged to the anti-slip pedal 7, and the lower side of the anti-slip pedal 7 is fixedly connected to the pressure sensor 17.
[0028] The working principle of the climbing device inside the wind turbine tower provided by this utility model is as follows: Figures 1-5As shown, during use, the ladder frame 1 is fixedly connected to the inner wall of the tower by the fixing legs 2, so that the side of the ladder frame 1 with the anti-slip pedal 7 faces the tower wall. The fixing legs 2 are evenly spaced on the ladder frame 1 to effectively fix the ladder frame 1. The drive motor 10 is connected to the power supply. The sliding seat 11 and the upright frame 14 are equipped with control switches for the drive motor 10, so that maintenance personnel standing on the anti-slip pedal 7 can control the start and stop of the drive motor 10. In turn, the drive motor 10 drives the steel cable reel 9 to rotate, winding the steel cable 5 onto the steel cable reel 9, or releasing the steel cable wound on the steel cable reel 9. This allows the sliding seat 11 and the upright frame 14 to move up and down along the limit guide rail 3, so that maintenance personnel on the anti-slip pedal 7 can move freely inside the tower. When the maintenance personnel are standing on the anti-slip pedal 7, the guardrail 8 is rotated downwards to a horizontal position. The anti-rotation limit rod 18 prevents the guardrail 8 from rotating further downwards, thus maintaining a horizontal position and providing protection for the standing maintenance personnel. Then, the rotating rod 12 is rotated out of the guardrail 8, and one end of the rotating rod 12 is rotated into the locking rod groove 16. The guardrail 8 and the rotating rod 12 are then connected by a limit pin 15. When the limit pin 15 is inserted into the rotating rod 12, the pressure sensor 17 detects that someone is standing and sends a signal to the electric push rod 19 through the control device. This causes the electric push rod 19 to extend and engage in the retaining ring groove 21, ensuring a secure connection between the rotating rod 12 and the guardrail 8 and guaranteeing the safety of the maintenance personnel.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A climbing device for the inside of a wind turbine tower, including a ladder frame (1), characterized in that: The ladder frame (1) is vertically equipped with a limiting guide rail (3) at its center. A vertical support frame (14) is installed on the limiting guide rail (3). A sliding seat (11) is fixedly connected to the lower end of the vertical support frame (14). A support plate (6) is hinged to the upper side of the sliding seat (11). An anti-slip pedal (7) is provided on the upper side of the support plate (6). Pressure sensors (17) are provided at the four corners of the lower side of the anti-slip pedal (7). Guardrails (8) are rotatably connected to both sides of the vertical support frame (14). A rotating rod (12) is rotatably connected to one of the guardrails (8). The other guardrail... One end of the guardrail (8) is provided with a locking groove (16). One side of the locking groove (16) is connected to a limit pin (15) via a signal line. The limit pin (15) has a locking ring groove (21) in the middle. An alarm light (20) is provided on the upper side of the guardrail (8) near the locking groove (16). An anti-rotation limit rod (18) is provided at the rotatable connection position between the two guardrails (8) and the upright frame (14). A safety ring (13) is provided at the center of the upright frame (14). An electric push rod (19) is provided on the inner side of one end of the rotating rod (12).
2. The climbing device for the inside of a wind turbine tower according to claim 1, characterized in that: The ladder frame (1) is connected to a fixed leg (2), and a fixed pulley (4) is installed at the upper end of the ladder frame (1). A steel cable (5) is wound on the fixed pulley (4).
3. The climbing device for the inside of a wind turbine tower according to claim 1, characterized in that: A drive motor (10) is provided on the side of the lower end of the ladder frame (1) away from the sliding seat (11), and the output end of the drive motor (10) is connected to a steel cable reel (9) through a reducer.
4. The climbing device for the inside of a wind turbine tower according to claim 2, characterized in that: The limiting guide rail (3) is connected to the pole frame (14) through a limiting pulley seat, and the steel cable (5) is connected to the pole frame (14) through a steel cable lock.
5. The climbing device for the inside of a wind turbine tower according to claim 2, characterized in that: The fixed leg (2) is connected to the ladder frame (1) by bolts, and the fixed pulley (4) is connected to the ladder frame (1) by bolts.
6. The climbing device for the inside of a wind turbine tower according to claim 3, characterized in that: The drive motor (10) is bolted to the ladder frame (1), the support plate (6) is hinged to the anti-slip pedal (7), and the lower side of the anti-slip pedal (7) is fixedly connected to the pressure sensor (17).