Anti-falling device for wind power equipment assembly

Abstract

The utility model relates to the technical field of wind power equipment assembly, and discloses a wind power equipment assembly anti-falling device which comprises a guide rail, an anti-falling box is slidably connected to the inner wall of the guide rail, an anti-falling mechanism is installed in the anti-falling box and comprises clamping blocks slidably connected to the outer walls of the two sides of the anti-falling box, and a plurality of clamping teeth are arranged on the outer walls of the two sides of the guide rail. According to the anti-falling safety belt, the guide rail and the anti-falling box capable of freely sliding on the guide rail are arranged, the limitation that a traditional safety belt connecting point is relatively fixed is changed, when a worker carries out large-range moving operation in the wind power equipment assembling process, the anti-falling box can synchronously move along with the worker, and therefore the safety belt is not prone to falling. The situation that the safety belt is possibly loosened or stretched excessively is avoided, the anti-falling effect is effectively guaranteed, and the problem that a traditional safety belt is inconvenient to connect and use especially in special operation scenes with limited space such as the interior of a tower drum is solved.

Description

Technical Field

[0001] This application relates to the field of wind power equipment assembly technology, and in particular to a fall arrest device for wind power equipment assembly. Background Technology

[0002] During the assembly of wind turbine equipment, workers face a risk of falling due to the height of the towers and the need to operate at heights. Currently, common fall protection measures primarily involve the use of personal protective equipment such as safety belts, but these devices have limitations in practical application.

[0003] For example, since the connection points of safety belts are relatively fixed, when workers move around a large area, the safety belts may become loose or overstretched, thus reducing their effectiveness in preventing falls. Moreover, in some special work scenarios, such as performing complex assembly operations inside a tower, the connection and use of safety belts may be limited by space, leading to inconvenience.

[0004] Furthermore, most existing fall protection devices focus on the direct protection of workers, while offering less protection for tools and components used during assembly. When working at heights, falling tools or components can not only damage equipment but also cause serious injury to personnel below. Therefore, a fall protection device for wind power equipment assembly is proposed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a fall arrest device for wind power equipment assembly, so as to solve the problems mentioned in the background art.

[0006] The anti-fall device for wind power equipment assembly provided in this application adopts the following technical solution:

[0007] A fall arrestor for wind power equipment assembly includes a guide rail, an fall arrestor box slidably connected to the inner wall of the guide rail, a movable plate fixedly connected to the outer wall of the fall arrestor box via a connecting block, and a plurality of equally spaced linearly arrayed lifting rings welded to the outer wall of the movable plate.

[0008] The fall arrestor box is equipped with a fall arrestor mechanism, which includes locking blocks slidably connected to the outer walls of both sides of the fall arrestor box. The inner walls of both sides of the guide rail are provided with multiple locking teeth, which engage with the locking blocks. The fall arrestor mechanism also includes two connecting rods symmetrically rotatably connected to the inner wall of the fall arrestor box via a fixed axis. The two connecting rods are L-shaped, and the bottom ends of the connecting rods are movably connected to the end of the locking block located inside the fall arrestor box via a movable groove. A pull rod is slidably connected to the top middle outer wall of the fall arrestor box. The bottom end of the pull rod passes through the fall arrestor box and is hinged to the top ends of the two connecting rods via a pivot pin.

[0009] Preferably, a compression spring is sleeved on the outer wall of the pull rod, one end of the compression spring is fixedly connected to the top inner wall of the fall arrestor box, and the other end is fixedly connected to the outer wall of the pull rod, and a pull plate is fixedly connected to the top of the pull rod.

[0010] Preferably, the bottom outer wall of the movable plate is fixedly installed with multiple latches by fasteners. The multiple latches are evenly distributed in a linear array with equal spacing. Each latch includes a latch hook, a latch rod, a toggle block, a movable ring, and a return spring.

[0011] Preferably, the movable ring is movably connected inside the fixed member, the locking hook is rotatably connected to the bottom middle inner wall of the movable ring, and the locking rod is slidably connected inside the locking hook, with its bottom end abutting against the bottom end of the locking hook.

[0012] Preferably, the actuating block is fixedly connected to the outer wall of the locking rod, and the end of the actuating block away from the locking rod extends out of the lock hook. The actuating block is slidably connected to the lock hook. The return spring is installed inside the lock hook. The bottom end of the return spring is fixedly connected to the top end of the locking rod, and its top end is fixedly connected to the top inner wall of the lock hook.

[0013] Preferably, the outer walls on both sides of the guide rail are fixedly connected with a plurality of fixing ears, which are evenly distributed at the four corner edges of the guide rail.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By setting up guide rails and fall arrestor boxes that can slide freely on them, the limitations of the relatively fixed connection points of traditional safety belts are changed. When workers move around a large area during the assembly of wind power equipment, the fall arrestor boxes can move synchronously with the workers, avoiding the possible loosening or excessive stretching of the safety belts, and effectively ensuring the fall arrest effect. Especially in special working scenarios with limited space, such as inside the tower, the problem of inconvenience in connecting and using traditional safety belts is solved.

[0016] 2. Unlike most existing fall protection devices that only focus on direct protection of workers and have few measures to prevent tools and parts from falling, this device has multiple latches on the outer wall of the bottom of the moving plate. These latches can securely lock tools and parts. Even in the event of an accident when working at height, the tools and parts connected to the latches will not fall. This not only avoids the risk of equipment being damaged by falling tools or parts, but more importantly, it eliminates the potential for serious injury to personnel below. It achieves comprehensive fall protection for workers, tools, and parts, significantly improving the safety of wind power equipment assembly operations. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0018] Figure 2 This is an exploded view of the first part of the structure in the embodiment of the application;

[0019] Figure 3 This is an exploded view of the second part of the structure in the embodiment of the application;

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached diagram: 1. Guide rail; 2. Fixing lug; 3. Clamping tooth; 4. Anti-fall box; 5. Clamping block; 6. Fixing shaft; 7. Connecting rod; 8. Movable groove; 9. Pull rod; 10. Pull plate; 11. Compression spring; 12. Connecting block; 13. Moving plate; 14. Lifting ring; 15. Lock; 1501. Locking hook; 1502. Locking rod; 1503. Actuating block; 1504. Movable ring; 1505. Return spring; 16. Fixing component. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a fall arrestor for wind turbine assembly. (Refer to...) Figure 1-4 A fall arrestor for wind power equipment assembly mainly consists of a guide rail 1 and a fall arrestor box 4. The guide rail 1 is the basic support component of the entire device. Multiple fixing ears 2 are fixedly connected to the outer walls on both sides of the guide rail 1. These fixing ears 2 are evenly distributed at the four corner edges of the guide rail 1. By using bolts or other connecting parts on the fixing ears 2, the guide rail 1 can be stably installed on a specific structure at the wind power equipment assembly site, such as the inner wall of the tower or other suitable support frame, providing a stable foundation for the installation and operation of subsequent components.

[0024] The fall arrestor box 4 and the guide rail 1 are slidably connected. Specifically, the fall arrestor box 4 has sliding structures on both sides that are adapted to the inner wall of the guide rail 1, allowing the fall arrestor box 4 to slide up and down along the length of the guide rail 1. The outer wall of the fall arrestor box 4 is fixedly connected to the moving plate 13 by the connecting block 12. The connecting block 12 can be connected by welding or bolts to ensure the connection is firm. The moving plate 13 will move synchronously with the sliding of the fall arrestor box 4. Multiple hanging rings 14 are welded to its outer wall in a linear array with equal spacing. The main purpose of the hanging rings 14 is to allow workers to hang safety ropes. When workers are working at heights while assembling wind power equipment, they hang their safety ropes on the hanging rings 14. In the event of an accident, the fall arrestor can prevent the worker from falling in time, providing reliable safety protection for the worker.

[0025] The fall arrest mechanism is installed inside the fall arrest box 4 and is the core part of the fall arrest function of the device. The outer walls on both sides of the fall arrest box 4 are slidably connected with the locking blocks 5. The outer inclined surface of the locking block 5 is in contact with the inclined surface of the locking teeth 3 on both sides of the inner wall of the guide rail 1. Under normal upward movement, the locking block 5 and the locking teeth 3 cooperate with each other, but are in a state of relative sliding, so that the fall arrest box 4 can slide smoothly on the guide rail 1. When an accident occurs, such as a worker falling or a part suddenly falling, causing the fall arrest box 4 to slide down abnormally, the locking block 5 will engage with the locking teeth 3 to prevent the fall arrest box 4 from continuing to slide down.

[0026] In the fall arrestor mechanism, two connecting rods 7 are symmetrically rotatably connected to the inner wall of the fall arrestor box 4 via a fixed shaft 6. The fixed shaft 6 is fixedly installed at a specific position on the inner wall of the fall arrestor box 4, providing a support point for the rotation of the connecting rods 7. The two connecting rods 7 are L-shaped, which allows the connecting rods 7 to effectively transmit force to the locking block 5 during rotation. The bottom end of the connecting rod 7 is movably connected to the end of the locking block 5 located inside the fall arrestor box 4 via a movable groove 8. The movable groove 8 provides a certain amount of space for the movement of the locking block 5. When the connecting rods 7 rotate, they will drive the locking block 5 to slide on the outer wall of the fall arrestor box 4 through the movable groove 8.

[0027] A pull rod 9 is slidably connected to the outer wall of the top center of the fall arrestor box 4. A guide structure is provided between the pull rod 9 and the top of the fall arrestor box 4 to ensure that the pull rod 9 can slide smoothly in the vertical direction. The bottom end of the pull rod 9 passes through the fall arrestor box 4 and is hinged to the top of the two connecting rods 7 through a pivot pin. The pivot pin provides a rotatable connection point, so that the up and down movement of the pull rod 9 can be converted into the rotation of the connecting rods 7. When the pull rod 9 is pulled upward, the pull rod 9 drives the top of the two connecting rods 7 to rotate outward through the pivot pin, thereby causing the bottom end of the connecting rods 7 to push the locking block 5 to slide inward through the movable groove 8, so that the locking block 5 disengages from the locking tooth 3. At this time, the fall arrestor box 4 can slide freely on the guide rail 1. When the pull rod 9 is released, under the action of gravity, the pull rod 9 moves downward, driving the connecting rods 7 to rotate, causing the locking block 5 to slide outward, and the locking block 5 re-engages with the locking tooth 3, realizing the fall arrest function.

[0028] A compression spring 11 is sleeved on the outer wall of the pull rod 9. One end of the compression spring 11 is fixedly connected to the top inner wall of the fall arrestor box 4, and the other end is fixedly connected to the outer wall of the pull rod 9. The compression spring 11 provides a downward elastic force to the pull rod 9, ensuring that the pull rod 9 can automatically reset when there is no external force, thereby ensuring the engagement state of the locking block 5 and the locking tooth 3, and enhancing the reliability of the fall arrestor. A pull plate 10 is fixedly connected to the top of the pull rod 9. The pull plate 10 increases the contact area with the operator's hand, making it convenient for the operator to manually pull the pull rod 9.

[0029] Multiple latches 15 are fixedly installed on the bottom outer wall of the movable plate 13 by a fastener 16. The fastener 16 can be a mounting base welded to the bottom of the movable plate 13 or other connecting structure. The latches 15 are directly connected to the fastener 16 by a movable ring 1504. The multiple latches 15 are evenly distributed in a linear array with equal spacing. The latches 15 are composed of a latch hook 1501, a latch rod 1502, a toggle block 1503, a movable ring 1504 and a return spring 1505.

[0030] The movable ring 1504 is movably connected inside the fixed member 16. The connection between the movable ring 1504 and the fixed member 16 allows the movable ring 1504 to rotate within a certain range within the fixed member 16. This movable connection structure allows the latch 15 to adjust its angle according to actual needs, facilitating connection with components or tools. The locking hook 1501 is rotatably connected to the bottom middle inner wall of the movable ring 1504. By setting a rotating shaft or other rotating structure between the movable ring 1504 and the locking hook 1501, the locking hook 1501 can rotate around a specific axis to adapt to different connection requirements.

[0031] The locking rod 1502 is slidably connected inside the locking hook 1501. The locking hook 1501 has a sliding channel that matches the locking rod 1502, ensuring that the locking rod 1502 can slide smoothly inside the locking hook 1501. The bottom end of the locking rod 1502 can abut against the bottom end of the locking hook 1501. When the locking rod 1502 extends, it can lock the components or tools inside the locking hook 1501. The actuating block 1503 is fixedly connected to the outer wall of the locking rod 1502. The end of the actuating block 1503 away from the locking rod 1502 extends out of the outside of the locking hook 1501, and the actuating block 1503 is slidably connected to the locking hook 1501.

[0032] The latch 15 is used to connect relevant components or tools during the assembly of wind power equipment. In use, first push the actuating block 1503 upwards. Since the actuating block 1503 is fixedly connected to the outer wall of the locking rod 1502, it will cause the locking rod 1502 to retract into the locking hook 1501 along the sliding channel inside the hook 1501, thus opening the hook 1501. Next, hang the connection part of the component or tool to be fixed on the hook 1501, and then release the actuating block 1503. At this time, the return spring 1505 takes effect. The return spring 1505 is installed inside the hook 1501, with its bottom end fixedly connected to the top end of the locking rod 1502 and its top end fixedly connected to the inner top wall of the hook 1501. Under the elastic force of the return spring 1505, the locking rod 1502 will automatically return to its original position, with its bottom end abutting against the bottom end of the hook 1501, locking the tool or component inside the hook 1501. In this way, when the fall arrestor is activated, it can promptly prevent the connected component or tool from falling.

[0033] The implementation principle of the anti-fall device for wind power equipment assembly in this application embodiment is as follows: Before the worker performs high-altitude work assembling wind power equipment, he securely hangs one end of the safety rope on the hanging ring 14 on the moving plate 13. At the same time, for the tools and related parts that need to be used, according to the actual situation, their connecting parts are hung on the locking hook 1501 of the lock buckle 15, and the locking rod 1502 is extended to lock the tools or parts in the locking hook 1501.

[0034] As the worker begins his work, the fall arrestor box 4 slides upward on the guide rail 1 as the worker climbs. At this time, the locking blocks 5 on both sides of the fall arrestor box 4 and the locking teeth 3 on both sides of the guide rail 1 are in a state of mutual cooperation and relative sliding, ensuring that the fall arrestor box 4 can slide smoothly. At the same time, the locking buckle 15 securely locks the tools and parts to prevent them from falling accidentally.

[0035] When a worker slips, falls, or experiences other accidents during operation, causing the fall arrest box 4 to slide down at an abnormally high speed, the fall arrest mechanism kicks in. The abnormal speed of the fall arrest box 4 triggers the internal fall arrest mechanism, causing the pull rod 9 to move downward under the action of the compression spring 11. The pull rod 9 drives the tops of the two connecting rods 7 to rotate inward through the shaft pin, which in turn causes the bottom of the connecting rods 7 to push the locking block 5 to slide outward through the movable groove 8. The locking block 5 quickly engages with the locking teeth 3 on both sides of the guide rail 1, preventing the fall arrest box 4 from continuing to slide down, thus ensuring the safety of the worker. At the same time, as the fall arrest box 4 stops sliding down, the tools and parts connected to the lock 15 also stop falling.

[0036] When the danger has passed and the worker needs to continue working, the fall arrestor box 4 can be directly pulled up in the guide rail 1 by the safety rope. When it needs to be moved down, the pull plate 10 at the top of the pull rod 9 is pulled up. The pull rod 9 drives the top of the two connecting rods 7 to rotate outward through the shaft pin, so that the bottom of the connecting rods 7 pushes the locking block 5 to slide inward through the movable groove 8. The locking block 5 disengages from the locking tooth 3, and the fall arrestor box 4 returns to the state of freely sliding on the guide rail 1.

[0037] For tools and parts connected to the latch 15, if they need to be removed for use, push the toggle block 1503 upwards to cause the locking rod 1502 to retract into the locking hook 1501, open the locking hook 1501, remove the tool or part, and after use, hang the tool or part on the locking hook 1501 again and release the toggle block 1503 so that the locking rod 1502 is reset under the action of the return spring 1505, and relock the tool or part;

[0038] After the wind turbine assembly is completed, the workers remove the safety rope from the lifting ring 14 and organize the tools and components. They then check all parts of the fall arrestor for damage, repairing or replacing any damaged parts to prepare for future use.

[0039] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fall arrest device for use in the assembly of a wind power plant comprising a guide rail (1), characterised in that: The inner wall of the guide rail (1) is slidably connected to a fall arrestor box (4), and the outer wall of the fall arrestor box (4) is fixedly connected to a moving plate (13) via a connecting block (12). The outer wall of the moving plate (13) is welded with multiple equally spaced linear array hanging rings (14). The fall arrestor box (4) is equipped with a fall arrestor mechanism. The fall arrestor mechanism includes a locking block (5) that is slidably connected to the outer walls of both sides of the fall arrestor box (4). The inner walls of both sides of the guide rail (1) are provided with multiple locking teeth (3). The locking teeth (3) are engaged with the locking block (5). The fall arrestor mechanism also includes two connecting rods (7) that are symmetrically rotated and connected to the inner wall of the fall arrestor box (4) through a fixed shaft (6). The two connecting rods (7) are designed in an L shape. The bottom end of the connecting rod (7) is movably connected to one end of the locking block (5) located inside the fall arrestor box (4) through a movable groove (8). A pull rod (9) is slidably connected to the middle outer wall of the top of the fall arrestor box (4). The bottom end of the pull rod (9) passes through the fall arrestor box (4) and is hinged to the top of the two connecting rods (7) through a shaft pin.

2. The fall protection device for use in assembling a wind power plant according to claim 1, characterized in that A compression spring (11) is sleeved on the outer wall of the pull rod (9). One end of the compression spring (11) is fixedly connected to the top inner wall of the fall arrestor box (4), and the other end is fixedly connected to the outer wall of the pull rod (9). A pull plate (10) is fixedly connected to the top of the pull rod (9).

3. The fall protection device for use in assembling a wind power plant according to claim 1, characterized in that The bottom outer wall of the movable plate (13) is fixedly installed with multiple latches (15) by fasteners (16). The multiple latches (15) are evenly distributed in a linear array with equal spacing. Each latch (15) includes a latch hook (1501), a latch rod (1502), a toggle block (1503), a movable ring (1504), and a return spring (1505).

4. The fall protection device for use in assembling a wind power plant according to claim 3, characterized in that The movable ring (1504) is movably connected inside the fixing member (16), and the locking hook (1501) is rotatably connected to the inner wall of the bottom middle of the movable ring (1504). The locking rod (1502) is slidably connected inside the locking hook (1501), and its bottom end abuts against the bottom end of the locking hook (1501).

5. A fall arrest device for use in the assembly of a wind turbine according to claim 4, characterised in that: The actuating block (1503) is fixedly connected to the outer wall of the locking rod (1502). The end of the actuating block (1503) away from the locking rod (1502) extends out of the outside of the locking hook (1501), and the actuating block (1503) is slidably connected to the locking hook (1501). The return spring (1505) is installed inside the locking hook (1501). The bottom end of the return spring (1505) is fixedly connected to the top end of the locking rod (1502), and its top end is fixedly connected to the top inner wall of the locking hook (1501).

6. The fall protection device for use in assembling a wind power plant according to claim 1, characterized in that: Multiple fixing ears (2) are fixedly connected to the outer walls on both sides of the guide rail (1), and the multiple fixing ears (2) are evenly distributed at the four corner edges of the guide rail (1).

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