A safety protection device in a wind turbine tower

Abstract

The utility model relates to the technical field of wind turbine tower, disclose a kind of safety protection device in wind turbine tower, including first protective plate, it is arranged in the climbing space between tower and ladder, it is close to the connecting flange of two towers, its lateral wall is provided with connecting block, connecting block lower end is provided with arc slot, arc slot is connected on the connecting bolt and connecting nut of connecting flange upper end;Clamping structure, the lateral wall of first protective plate is connected with clamping structure, it is oppositely arranged with connecting block, and it is abutted with the head of connecting flange lower end connecting bolt;Second protective plate, two second protective plates are respectively arranged in the two sides of first protective plate, it is integrally formed with first protective plate, it is smoothly transitioned between first protective plate, and one end is abutted with tower lateral wall.In the connection bolt and connecting nut of connecting flange of wind turbine tower inner ladder place are shielded, the utility model can avoid new jamming point formed due to its structural design.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower technology, and in particular to a safety protection device inside a wind turbine tower. Background Technology

[0002] As the core supporting structure of a wind turbine generator, the wind turbine tower typically has internal ladders for workers to periodically inspect and maintain the equipment. Since the tower is often composed of multiple sections joined together, with adjacent sections secured by connecting flanges, these flanges often protrude inwards. As workers climb the ladders, these protruding flanges can easily rub against their safety belts, tool bags, or clothing, causing them to become stuck and directly threatening operational safety.

[0003] Patent CN220185279U discloses a safety protection device inside a wind turbine tower. In use, a second protective plate and a first protective plate are connected by a damped rotation. The first and second protective plates shield the protruding connecting flange inside the tower. A first connecting plate is connected to the first protective plate via a second connecting plate. The second connecting plate is vertically positioned, and the first connecting plate has connecting holes for connecting to bolt holes on the connecting flange. However, this device has the following drawbacks: the damped rotation connection between the second and first protective plates, while creating a smooth transition, inevitably results in a gap between them in practical applications. When workers climb the ladder inside the tower, flexible items such as the edges of their clothing, tool bags, or webbing are highly likely to get caught in this gap. Once caught, this not only hinders the worker's normal movement but may also cause them to lose their balance, thus threatening their safety.

[0004] Therefore, when covering the connecting bolts and nuts of the connecting flange at the ladder inside the wind turbine tower, how to avoid the protective device from forming new jamming points due to its own structural design has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a safety protection device inside the tower of a wind turbine to overcome the shortcomings mentioned above.

[0006] To achieve the above objectives, the technical solution of this utility model is: a safety protection device inside a wind turbine tower, comprising:

[0007] The first protective plate is used to vertically install the crawling space between the tower and the ladder. It is close to the connecting flange of the two towers. A connecting block is provided on the upper part of its side wall. An arc groove is provided at the lower end of the connecting block. The arc groove is used to engage the connecting bolt and connecting nut at the upper end of the connecting flange.

[0008] A clamping structure is provided, wherein the sidewall of the first protective plate is connected to the clamping structure near its lower end, which is disposed opposite to the connecting block, and its clamping end is used to selectively abut against the head of the connecting bolt at the lower end of the connecting flange; and

[0009] The second protective plate consists of two inclined plates symmetrically arranged on both sides of the first protective plate. It is integrally formed with the first protective plate and has a smooth transition with the first protective plate. The end of the second protective plate away from the first protective plate is used to abut against the side wall of the tower.

[0010] Furthermore, the clamping structure includes a clamping plate, a fixing plate, and a lifting assembly. The fixing plate is fixedly connected to the side wall of the first protective plate near the lower end along the width direction. At least one lifting assembly is provided on the fixing plate. The lifting end of the lifting assembly slides through the fixing plate and is connected to one end of the clamping plate. The other end of the clamping plate is used to selectively abut against the head of the connecting bolt at the lower end of the connecting flange.

[0011] Furthermore, two lifting assemblies are arranged on the fixed plate, located at the left and right ends of the first protective plate and arranged opposite to each other. Each lifting assembly also includes a fixed frame, a support rod, a fixing nut, and fasteners. The lower end of the fixed plate is fixedly connected to the fixed frame. One end of the support rod slides through the fixed frame and the fixed plate and is fixedly connected to one end of the clamping plate. A first cutting slit is arranged vertically on one side wall of the fixed frame near the bottom. A second cutting slit is arranged horizontally on one side wall of the fixed frame at the middle. The first cutting slit communicates with the second cutting slit. A third cutting slit is arranged horizontally on the opposite side walls of the fixed frame. The two ends of the second cutting slit communicate with the two third cutting slits respectively. Two fixing nuts are fixedly connected to one side wall of the fixed frame. The two fixing nuts are symmetrically arranged on both sides of the first cutting slit. Fasteners are threaded between the two fixing nuts.

[0012] Furthermore, the length of the third cutting slit is half the length of the sidewall in which it is located.

[0013] Furthermore, the fixing frame, fixing nut, and fastener are all located within the operating space enclosed by the second protective plate and the fixing plate below.

[0014] Furthermore, the end of the fastener away from the fixing nut is fixedly connected to the screw ring, which is located within the operating space.

[0015] Furthermore, the horizontal cross-section of the fixed frame is U-shaped, and the horizontal cross-section of the support rod is □-shaped.

[0016] Furthermore, the second protective plate has an arc-shaped structure, and the arc of the second protective plate faces the inner wall of the tower.

[0017] Furthermore, a first anti-collision pad is provided at the end of the second protective plate away from the first protective plate.

[0018] Furthermore, a second anti-collision pad is provided at the other end of the clamping plate.

[0019] Compared with the prior art, this utility model has at least the following advantages: In use, the fixing is achieved by the cooperation of the connecting block and the clamping structure: the arc groove at the lower end of the connecting block is engaged with the connecting bolt and connecting nut at the upper end of the connecting flange, while the clamping structure at the lower end of the first protective plate abuts against the head of the connecting bolt at the lower end of the connecting flange, forming a stable fixing method of upper and lower clamping, ensuring that the first protective plate is vertically arranged in the crawling space between the tower and the ladder, and close to the connecting flange position.

[0020] The protective function is achieved by the first protective plate and the second protective plate together: the first protective plate directly shields the connecting flange, bolts, and nuts, preventing workers from contacting the protruding parts; the second protective plates on both sides are set at an angle, and because they are integrally molded with the first protective plate and have a smooth transition, they eliminate the gaps that exist in traditional damping rotational connections, preventing workers' clothing, tool bags, webbing, and other flexible items from being caught. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the safety protection device inside the wind turbine tower of this utility model;

[0023] Figure 2 This is a sectional view of the safety protection device inside the wind turbine tower of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the safety protection device inside the wind turbine tower of this utility model from another angle;

[0025] Figure 4 This is a front view of the safety protection device inside the wind turbine tower of this utility model;

[0026] Figure 5 This is a schematic diagram of the lifting component of this utility model.

[0027] Reference numerals: 1. First protective plate; 2. Tower; 3. Ladder; 4. Connecting block; 5. Arc groove; 6. Connecting bolt; 7. Connecting nut; 8. Second protective plate; 9. Clamping plate; 10. Fixing plate; 11. Fixing frame; 12. Support rod; 13. First cutting seam; 14. Second cutting seam; 15. Third cutting seam; 16. Fixing nut; 17. Fastener; 18. Tightening ring; 19. Operating space; 20. First anti-collision pad; 21. Second anti-collision pad. Detailed Implementation

[0028] 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.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1-3 This utility model provides a safety protection device inside the tower of a wind turbine, including a first protective plate 1. The first protective plate 1 is vertically arranged in the crawling space between the tower 2 and the ladder 3, and its position is close to the connecting flange of the two towers 2. A connecting block 4 is provided on the side wall of the first protective plate 1 near the upper end. An arc-shaped groove 5 is provided at the lower end of the connecting block 4. The arc-shaped groove 5 is used to engage the connecting bolt 6 and the connecting nut 7 at the upper end of the connecting flange, thereby achieving the initial positioning of the first protective plate 1.

[0031] The side wall of the first protective plate 1 is connected to a clamping structure near the lower end, and the clamping structure is arranged opposite to the connecting block 4. The clamping end of the clamping structure and the head of the connecting bolt 6 at the lower end of the connecting flange selectively abut against each other. Through cooperation with the connecting block 4, the first protective plate 1 is fixed at the connecting flange.

[0032] Reference Figure 3-5The clamping structure includes a clamping plate 9, a fixing plate 10, and a lifting assembly. The fixing plate 10 is fixedly connected to the side wall of the first protective plate 1 near the lower end along the width direction. At least one lifting assembly is arranged on the fixing plate 10. In this embodiment, two lifting assemblies are arranged on the fixing plate 10. The two lifting assemblies are located at the left and right ends of the first protective plate 1 and are arranged opposite to each other. The lifting end of the lifting assembly slides through the fixing plate 10 and is connected to one end of the clamping plate 9. The other end of the clamping plate 9 is used to selectively abut against the head of the connecting bolt 6 at the lower end of the connecting flange. A second anti-collision pad 21 is provided at the other end of the clamping plate 9. The second anti-collision pad 21 is made of rubber.

[0033] Reference Figure 5 The lifting assembly also includes a fixed frame 11, a support rod 12, a fixing nut 16, and fasteners 17. The lower end of the fixing plate 10 is fixedly connected to the fixed frame 11. The horizontal cross-section of the fixed frame 11 is U-shaped, and the horizontal cross-section of the support rod 12 is U-shaped. One end of the support rod 12 slides through the fixed frame 11 and the fixed plate 10 in sequence and is fixedly connected to one end of the clamping plate 9. A first cutting slit 13 is provided vertically on the side wall of one end of the fixed frame 11 near the bottom, and a second cutting slit 14 is provided horizontally on the side wall of one end of the fixed frame 11 in the middle. The first cutting slit 13 and the second cutting slit 14 are connected. The cutting seam 14 is connected, and the side walls opposite to the fixed frame 11 are provided with a third cutting seam 15 in the horizontal direction. The two ends of the second cutting seam 14 are connected to the two third cutting seams 15 respectively. The length of the third cutting seam 15 is half the length of the side wall. Two fixing nuts 16 are fixedly connected to the side wall at one end of the fixed frame 11. The two fixing nuts 16 are symmetrically arranged on both sides of the first cutting seam 13. Fasteners 17 are threadedly connected between the two fixing nuts 16. The fasteners 17 are bolts. The end of the fastener 17 away from the fixing nut 16 is fixedly connected to the screw ring 18.

[0034] Reference Figure 2 The fixing frame 11, fixing nut 16, fastener 17, and tightening ring 18 are all located within the operating space 19 enclosed by the lower second protective plate 8 and fixing plate 10. The operator puts their hand into the operating space 19 and then rotates the tightening ring 18 in both directions, causing the end face of the head of the fastener 17 to approach or move away from the side wall of the outermost fixing nut 16. This causes the two fixing nuts 16 to move closer or further apart. At this time, the first cutting slit 13 shrinks and enlarges accordingly. When the first cutting slit 13 shrinks, the clamping force of the fixing frame 11 on the support rod 12 increases, thereby fixing the support rod 12. When the first cutting slit 13 enlarges, the clamping force of the fixing frame 11 on the support rod 12 decreases, and the support rod 12 can be raised and lowered freely to adjust the position of the clamping plate 9.

[0035] Reference Figure 1-2Two inclined second protective plates 8 are symmetrically arranged on both sides of the first protective plate 1. The second protective plate 8 and the first protective plate 1 are integrally formed. The second protective plate 8 has an arc-shaped structure, and the arc of the second protective plate 8 faces the inner wall of the tower 2. The second protective plate 8 and the first protective plate 1 are smoothly transitioned. The end of the second protective plate 8 away from the first protective plate 1 is used to abut against the side wall of the tower 2. A first anti-collision pad 20 is provided at the end of the second protective plate 8 away from the first protective plate 1. The first anti-collision pad 20 is also made of rubber.

[0036] The working principle of this utility model is as follows: Workers can operate on the operating platform of the tower 2. A cover plate (not shown in the figure) is also provided at the ladder opening. During use, the worker first engages the arc-shaped groove 5 of the connecting block 4 at the upper end of the first protective plate 1 with the connecting bolt 6 and connecting nut 7 at the upper end of the connecting flange, achieving initial positioning. Then, the worker reaches into the operating space 19 and drags the support rod 12 to move the clamping plate 9 up and down until the second anti-collision pad 21 at the other end of the clamping plate 9 abuts against the head of the connecting bolt 6 at the lower end of the flange. At this time, the rotating ring 18 is rotated forward, causing the end face of the fastener 17 head to approach the side wall of the outermost fixing nut 16, thereby causing the two fixing nuts 16 to move closer to each other. At this time, the first cutting slit 13 shrinks accordingly. When the first cutting slit 13 shrinks, the clamping force of the fixing frame 11 on the support rod 12 increases, thereby fixing the support rod 12 and completing the installation of the entire protective device.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A safety protection device inside the tower of a wind turbine generator, characterized in that, include: The first protective plate (1) is used to be vertically arranged in the crawling space between the tower (2) and the ladder (3). It is close to the connecting flange of the two towers (2). A connecting block (4) is provided on the side wall near the upper end. An arc groove (5) is provided at the lower end of the connecting block (4). The arc groove (5) is used to snap the connecting bolt (6) and connecting nut (7) at the upper end of the connecting flange. A clamping structure is provided on the side wall of the first protective plate (1) near its lower end, and is disposed opposite to the connecting block (4). Its clamping end is used to selectively abut against the head of the connecting bolt (6) at the lower end of the connecting flange; and The second protective plate (8) is arranged symmetrically on both sides of the first protective plate (1) with two inclined second protective plates (8). It is integrally formed with the first protective plate (1) and has a smooth transition with the first protective plate (1). The end of it away from the first protective plate (1) is used to abut against the side wall of the tower (2).

2. The safety protection device inside the wind turbine tower according to claim 1, characterized in that, The clamping structure includes a clamping plate (9), a fixing plate (10), and a lifting assembly. The fixing plate (10) is fixedly connected to the side wall of the first protective plate (1) near the lower end along the width direction. At least one lifting assembly is provided on the fixing plate (10). The lifting end of the lifting assembly slides through the fixing plate (10) and is connected to one end of the clamping plate (9). The other end of the clamping plate (9) is used to selectively abut against the head of the connecting bolt (6) at the lower end of the connecting flange.

3. The safety protection device inside the wind turbine tower according to claim 2, characterized in that, Two lifting components are arranged on the fixed plate (10). The two lifting components are located at the left and right ends of the first protective plate (1) and are arranged opposite to each other. The lifting components also include a fixed frame (11), a support rod (12), a fixing nut (16), and a fastener (17). The lower end of the fixed plate (10) is fixedly connected to the fixed frame (11). One end of the support rod (12) slides through the fixed frame (11) and the fixed plate (10) in sequence and is fixedly connected to one end of the clamping plate (9). A first cutting slit (13) is provided vertically on the side wall of one end of the fixed frame (11) near the bottom. (11) A second cutting slit (14) is provided on one side wall and in the middle of the horizontal direction. The first cutting slit (13) is connected to the second cutting slit (14). The opposite side walls of the fixed frame (11) are provided with a third cutting slit (15) in the horizontal direction. The two ends of the second cutting slit (14) are respectively connected to the two third cutting slits (15). Two fixing nuts (16) are fixedly connected to one side wall of the fixed frame (11). The two fixing nuts (16) are respectively symmetrically arranged on both sides of the first cutting slit (13). Fasteners (17) are threaded between the two fixing nuts (16).

4. The safety protection device inside the wind turbine tower according to claim 3, characterized in that, The length of the third cutting seam (15) is half the length of the side wall in which it is located.

5. The safety protection device inside the wind turbine tower according to claim 3, characterized in that, The fixed frame (11), fixed nut (16) and fastener (17) are all located within the operating space (19) enclosed by the second protective plate (8) and the fixed plate (10) below.

6. The safety protection device inside the wind turbine tower according to claim 5, characterized in that, The fastener (17) is fixedly connected to a screw ring (18) at one end away from the fixing nut (16), and the screw ring (18) is located within the operating space (19).

7. The safety protection device inside the wind turbine tower according to claim 3, characterized in that, The horizontal cross-section of the fixed frame (11) is U-shaped, and the horizontal cross-section of the support rod (12) is □-shaped.

8. The safety protection device inside the wind turbine tower according to any one of claims 1 to 2, characterized in that, The second protective plate (8) has an arc-shaped structure, and the arc of the second protective plate (8) faces the inner wall of the tower (2).

9. The safety protection device inside the wind turbine tower according to any one of claims 1 to 2, characterized in that, The second protective plate (8) is provided with a first anti-collision pad (20) at the end away from the first protective plate (1).

10. The safety protection device inside the wind turbine tower according to claim 2, characterized in that, A second anti-collision pad (21) is provided at the other end of the clamping plate (9).

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