An offshore wind turbine maintenance escalator

Abstract

The utility model discloses an offshore wind turbine maintenance ladder, including a foundation pile and a sliding rod, a sliding mechanism is arranged on the rod body of the sliding rod, the sliding mechanism is used to move on the rod body of the sliding rod, and the sliding mechanism includes a sliding sleeve, a sliding groove is provided inside the sliding sleeve, the sliding groove corresponds to the sliding rod and is slidably sleeved therewith, and snap ring grooves are provided at the upper and lower ends of the sliding sleeve, and a fixing plate is fixedly connected to the outer side of the sliding sleeve, and a handrail is fixedly connected to the outer end of the fixing plate. The utility model gets rid of the traditional climbing method by adopting a sliding method, so that maintenance workers do not need to release the other hand when climbing; at the same time, a safety rope can be tied to the equipment, and it rises synchronously with the sliding mechanism. When a worker slips and falls, it will be automatically locked by pulling force, which greatly increases the safety factor of climbing, is more practical, and is suitable for wide promotion and use.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance escalators, in particular to an offshore wind turbine generator set maintenance escalator. Background Art

[0002] When maintaining offshore wind turbines, ladders are needed. However, most of the existing offshore wind turbine maintenance ladders are generally just a plurality of C-shaped steel bars welded to the inner wall of the foundation pile, or the ladder is directly welded to the inner wall of the foundation pile. This structure requires workers to climb with both hands alternately. When the other hand is released to move, only one hand holds the ladder and bears a large pulling force. If the hand slips accidentally, it will cause a safety accident. At the same time, this ladder cannot be connected to the safety rope by a buckle, because the position of the safety rope needs to be changed at each step, which is very inconvenient and poses a great safety hazard. Utility Model Content

[0003] The utility model provides an offshore wind turbine maintenance ladder, aiming to solve the above-mentioned technical problems that workers need to climb with both hands alternately when climbing, which poses a great safety hazard and at the same time, there is no way to connect the safety rope through a buckle.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An offshore wind turbine maintenance ladder comprises a foundation pile, two sliding rods arranged vertically side by side are arranged in front of the foundation pile, a plurality of pedals are arranged between the sliding rods, and the pedals cooperate with the sliding rods to form a ladder mechanism, and the sliding rods are fixedly matched with the foundation piles through the pedals;

[0006] The sliding rods are all provided with sliding mechanisms, each of which includes a sliding sleeve, a sliding groove is provided in the sliding sleeve, the sliding rod is embedded in the sliding groove to form a sliding fit, a side of the sliding sleeve away from the foundation pile is provided with a relatively arranged fixing plate, and a handrail is provided between the ends of the fixing plate;

[0007] Both ends of the sliding rod near the foundation pile are provided with a plurality of slots at equal intervals along the rod direction, the same control rod is movably and elastically installed in the fixed plate, the sliding sleeve is provided with two snap ring grooves, snap rings are slidably installed in the snap ring grooves, the side of the snap ring near the handrail forms a linkage fit with the control rod, and the side of the snap ring near the foundation pile forms a removable snap fit with the slot;

[0008] A safety rope ring is fixedly connected to the lower part of the sliding sleeve away from the foundation pile through a connecting plate, and a safety rope fixing ring is provided on the side of the clamping ring away from the foundation pile.

[0009] Preferably, the pedals are arranged at equal intervals along the sliding rod, and both ends of each pedal away from the foundation pile are fixedly matched with the corresponding sliding rod close to the foundation pile through a support frame.

[0010] As a more preferred embodiment, the slide groove and the clamping ring are provided with overlapping openings on the side close to the foundation pile, and the support frame passes through the opening when moving, and the width of the opening is not less than the width of the support frame.

[0011] Furthermore, the armrest is arranged vertically, and both ends of the armrest correspond to the fixing plates one by one, and both ends of the armrest form a fixed fit with the sliding sleeve through the corresponding fixing plates.

[0012] Furthermore, the fixing plates are all provided with sliding holes, the sliding holes of the two fixing plates overlap, and the same control rod is embedded in the overlapping sliding holes, each sliding hole is provided with a spring, and the control rod forms an elastic fit with the sliding hole through the spring, and in the initial state, the spring is in a compressed state, one end of the spring is fixedly fitted with a side of the control rod away from the sliding sleeve, and the other end of the spring is fixedly fitted with a side of the sliding hole close to the armrest.

[0013] Specifically, the control rod is parallel to the handrail, and the control rod and the handrail are located on the same plane perpendicular to the foundation pile.

[0014] More specifically, the two ends of the control rod close to the sliding sleeve form a fixed fit with the corresponding snap rings respectively, the snap ring grooves are symmetrically arranged about the middle position of the sliding groove, and the snap ring grooves are all coaxial with the sliding grooves, and the corresponding snap rings are slidably installed in the snap ring grooves, and the snap rings slide back and forth in the corresponding snap ring grooves along the vertical direction from the armrest to the sliding sleeve.

[0015] In detail, both ends of the opening of the snap ring are provided with a clamping block, which corresponds to and fits with the clamping groove on the sliding rod. When the control rod is pulled close to the armrest, the spring is in an energy storage state, the snap ring slides along the snap ring groove toward the armrest, and the clamping block is embedded in the clamping groove at the corresponding position to form a limited clamping fit;

[0016] When the control rod is released by the spring and approaches the sliding sleeve, the snap ring slides along the snap ring groove toward the sliding sleeve, and the clamping block is disengaged from the clamping groove at the corresponding position to release the limit clamping engagement.

[0017] In more detail, the snap ring groove is communicated with the slide groove.

[0018] Beneficial effects of the utility model:

[0019] The utility model gets rid of the traditional climbing method by adopting a sliding method, so that the maintenance workers do not need to release the other hand when climbing; at the same time, a safety rope can be tied to the equipment and rise synchronously with the sliding mechanism. When the worker loses his footing and falls, the rope will be automatically locked by pulling force, which greatly increases the safety factor of climbing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the armrest mechanism of the utility model;

[0022] Figure 3 It is a rear view schematic diagram of the utility model;

[0023] Figure 4 It is a disassembly schematic diagram of the utility model;

[0024] Figure 5 This is a top view schematic diagram of the handrail of the utility model;

[0025] Figure 6 It is a side view schematic diagram of the clamping ring of the utility model;

[0026] In the figure: 1. foundation pile; 2. sliding rod; 3. pedal; 4. support frame; 5. slot; 6. handrail; 7. sliding sleeve; 8. snap ring; 9. control rod; 10. fixing plate; 11. safety rope ring; 12. safety rope fixing ring; 13. block; 14. snap ring groove; 15. slide groove; 16. slide hole; 17. spring; 18. opening. DETAILED DESCRIPTION

[0027] As follows, embodiments are further described with reference to the accompanying drawings.

[0028] like Figure 1 to Figure 6 As shown, as a preferred embodiment 1, an offshore wind turbine maintenance ladder comprises a foundation pile 1, two sliding rods 2 arranged vertically side by side are provided on the front side of the foundation pile 1, a plurality of pedals 3 are provided between the sliding rods 2, and the pedals 3 cooperate with the sliding rods 2 to form a ladder mechanism, and the sliding rods 2 are fixedly matched with the foundation pile 1 through the pedals 3;

[0029] The sliding rods 2 are all provided with sliding mechanisms, each of which includes a sliding sleeve 7, a sliding groove 15 is provided in the sliding sleeve 7, and the sliding rod 2 is embedded in the sliding groove 15 to form a sliding fit. A side of the sliding sleeve 7 away from the foundation pile 1 is provided with a fixed plate 10 arranged opposite to each other, and a handrail 6 is provided between the ends of the fixed plate 10;

[0030] Both ends of the sliding rod 2 on the side close to the foundation pile 1 are provided with a plurality of slots 5 at equal intervals along the rod direction, a same control rod 9 is movably and elastically installed in the fixed plate 10, two snap ring grooves 14 are provided on the sliding sleeve 7, a snap ring 8 is slidably installed in the snap ring groove 14, the snap ring 8 is in linkage cooperation with the control rod 9 on the side close to the handrail 6, and the snap ring 8 is in removable engagement with the slot 5 on the side close to the foundation pile 1;

[0031] A safety rope ring 11 is fixedly connected to the lower part of the sliding sleeve 7 away from the foundation pile 1 through a connecting plate, and a safety rope fixing ring 12 is provided on the side of the clamping ring 8 away from the foundation pile 1 .

[0032] Embodiment 1 provides an offshore wind turbine maintenance ladder, which uses a sliding method to get rid of the traditional climbing method, so that maintenance workers do not need to release the other hand when climbing; at the same time, a safety rope can be tied to the equipment, rising synchronously with the sliding mechanism, and when the worker slips and falls, it will be automatically locked by tension, greatly increasing the safety factor of climbing;

[0033] When the worker is in a hurry to climb up, the shackle 8 is pulled outward by the handrail 6 and the control rod 9 is pressed by the finger, and the shackle 8 is pulled outward to slide, so that the shackle 8 is engaged with the card slot 5 on the back of the sliding rod 2, and the sliding sleeve 7 is locked. Then the body can be pulled up to climb. When climbing up, if the sliding sleeve 7 needs to be moved upward, the control rod 9 can be loosened a little without loosening the handrail 6. At this time, the elastic installation can release energy to push the shackle 8 inward through the control rod 9, and the shackle 8 is separated from the card slot 5, thereby unlocking the sliding sleeve 7 and sliding. When the worker accidentally slips, he only needs to hold the handrail 6 and the control rod 9 tightly with both hands to lock the two sliding sleeves 7, so as to ensure the safety of the worker.

[0034] As a preferred embodiment 2, the pedals 3 are arranged at equal intervals along the rod direction of the sliding rod 2, and both ends of each pedal 3 away from the foundation pile 1 are fixedly matched with the corresponding side of the sliding rod 2 close to the foundation pile 1 through the support frame 4. The fixed installation of the ladder structure body is ensured, so that it can maintain stability when the sliding mechanism is used.

[0035] As a preferred embodiment 3, the pedal 3 extends outward and does not extend beyond the sliding rod 2, which is convenient for standing.

[0036] As a preferred embodiment 4, the slide groove 15 and the clamping ring 8 are provided with overlapping openings 18 on the side close to the foundation pile 1, and the support frame 4 passes through the opening 18 when moving, and the width of the opening 18 is not less than the width of the support frame 4. It is ensured that the sliding mechanism is not blocked by the support frame 4 during movement, thereby causing no conflict.

[0037] As a preferred embodiment 5, the armrest 6 is arranged vertically, and the two ends of the armrest 6 correspond to the fixing plate 10 one by one, and the two ends of the armrest 6 form a fixed fit with the sliding sleeve 7 through the corresponding fixing plate 10, so as to facilitate holding with both hands.

[0038] As a preferred embodiment 6, the fixing plates 10 are each provided with a sliding hole 16, the sliding holes 16 of the two fixing plates 10 overlap, and the same control rod 9 is embedded in the overlapping sliding holes 16, each sliding hole 16 is provided with a spring 17, and the control rod 9 forms an elastic fit with the sliding hole 16 through the spring 17, in the initial state, the spring 17 is in a compressed state, one end of the spring 17 is fixedly fitted with a side of the control rod 9 away from the sliding sleeve 7, and the other end of the spring 17 is fixedly fitted with a side of the sliding hole 16 close to the armrest 6.

[0039] Example 6 provides a specific method of elastic installation, in which the reaction force is provided by releasing energy through the compressed spring 17. When locking is required, the control rod 9 is held tightly, and the spring 17 is in a further compressed state. When unlocking is required, only the control rod 9 needs to be slightly loosened, and the spring 17 releases energy to a certain extent.

[0040] As a preferred embodiment 7, the control rod 9 is parallel to the handrail 6, and the control rod 9 and the handrail 6 are located on the same plane perpendicular to the foundation pile 1. It is convenient to hold the handrail 6 and the control rod 9 at the same time, so that the locking and unlocking operations can be completed without completely releasing the hand.

[0041] As a preferred embodiment 8, the two ends of the control rod 9 close to the sliding sleeve 7 are fixedly matched with the corresponding snap rings 8, the snap ring grooves 14 are symmetrically arranged about the middle position of the sliding groove 15, and the snap ring grooves 14 are coaxial with the sliding groove 15. The corresponding snap rings 8 are slidably installed in the snap ring grooves 14, and the snap rings 8 reciprocate in the corresponding snap ring grooves 14 along the vertical direction from the handrail 6 to the sliding sleeve 7. The smooth movement of the snap ring 8 is ensured.

[0042] As a preferred embodiment 9, both ends of the opening 18 of the snap ring 8 are provided with a clamping block 13, and the clamping block 13 corresponds to and fits with the clamping groove 5 on the sliding rod 2. When the control rod 9 is pulled close to the armrest 6, the spring 17 is in an energy storage state, and the snap ring 8 slides along the snap ring groove 14 toward the armrest 6, and the clamping block 13 is embedded in the clamping groove 5 at the corresponding position to form a limited clamping fit;

[0043] When the control rod 9 releases energy through the spring 17 and approaches the sliding sleeve 7, the snap ring 13 slides along the snap ring groove 14 toward the sliding sleeve 7, and the clamping block 13 is disengaged from the clamping groove 5 at the corresponding position to release the limit clamping engagement.

[0044] Example 9 provides the specific state of the relevant structure when locking and unlocking. When climbing upward, if you need to move the sleeve 7 upward, just loosen the control rod 9 slightly without loosening the handrail 6. At this time, the spring 17 will push the retaining ring 8 inward through the control rod 9, disengaging the block 13 from the slot 5, thereby unlocking the sleeve 7 and allowing it to slide.

[0045] As a preferred embodiment 10, the snap ring groove 14 is communicated with the slide groove 15, so as to facilitate the arrangement and installation of the snap ring 7.

[0046] The working principle of this utility model:

[0047] The utility model provides an offshore wind turbine maintenance ladder, which uses a sliding method to get rid of the traditional climbing method, so that maintenance workers do not need to release the other hand when climbing; at the same time, a safety rope can be tied to the equipment, and it rises synchronously with the sliding mechanism. When the worker slips and falls, it will be automatically locked by pulling force, which greatly increases the safety factor of climbing;

[0048] When the worker is in a hurry to climb up, the spring 17 can push the clamping ring 8 inward through the control rod 9 to disengage the clamping block 13 from the clamping groove 5, thereby unlocking the sliding sleeve 7 and allowing it to slide; when the worker accidentally slips, he only needs to hold the handrail 6 and the control rod 9 tightly with both hands to lock the two sliding sleeves 7, thereby ensuring the safety of the worker.

Claims

1. An offshore wind turbine maintenance ladder, comprising a foundation pile (1), characterized in that: Two sliding rods (2) arranged vertically side by side are provided on the front side of the foundation pile (1); a plurality of pedals (3) are provided between the sliding rods (2); the pedals (3) cooperate with the sliding rods (2) to form a ladder mechanism; the sliding rods (2) are fixedly matched with the foundation pile (1) via the pedals (3); The sliding rods (2) are all provided with sliding mechanisms, each of the sliding mechanisms comprising a sliding sleeve (7), a sliding groove (15) being provided in the sliding sleeve (7), the sliding rod (2) being embedded in the sliding groove (15) to form a sliding fit, a side of the sliding sleeve (7) away from the foundation pile (1) being provided with a fixing plate (10) arranged opposite to each other, and a handrail (6) being provided between the ends of the fixing plate (10); Both ends of the sliding rod (2) on the side close to the foundation pile (1) are provided with a plurality of slots (5) at equal intervals along the rod direction; a same control rod (9) is movably and elastically installed in the fixing plate (10); two snap ring slots (14) are provided on the sliding sleeve (7); a snap ring (8) is slidably installed in the snap ring slot (14); the side of the snap ring (8) close to the handrail (6) forms a linkage fit with the control rod (9); the side of the snap ring (8) close to the foundation pile (1) forms a removable snap fit with the slot (5); A safety rope ring (11) is fixedly connected to the lower part of the sliding sleeve (7) at a side away from the foundation pile (1) via a connecting plate, and a safety rope fixing ring (12) is provided at a side of the clamping ring (8) away from the foundation pile (1).

2. An offshore wind turbine maintenance escalator according to claim 1, characterized in that: The pedals (3) are arranged at equal intervals along the rod direction of the sliding rod (2), and both ends of each pedal (3) on the side away from the foundation pile (1) are fixedly matched with the corresponding side of the sliding rod (2) close to the foundation pile (1) through a support frame (4).

3. An offshore wind turbine maintenance escalator according to claim 2, characterized in that: The slide groove (15) and the clamping ring (8) are provided with overlapping openings (18) on one side close to the foundation pile (1); the support frame (4) passes through the opening (18) when moving, and the width of the opening (18) is not less than the width of the support frame (4).

4. An offshore wind turbine maintenance escalator according to claim 3, characterized in that: The armrest (6) is arranged vertically, and the two ends of the armrest (6) correspond to the fixing plates (10) one by one, and the two ends of the armrest (6) form a fixed fit with the sliding sleeve (7) through the corresponding fixing plates (10).

5. An offshore wind turbine maintenance escalator according to claim 4, characterized in that: The fixing plates (10) are each provided with a sliding hole (16), the sliding holes (16) of the two fixing plates (10) overlap, and the same control rod (9) is embedded in the overlapping sliding holes (16), each sliding hole (16) is provided with a spring (17), and the control rod (9) forms an elastic fit with the sliding hole (16) through the spring (17), in an initial state, the spring (17) is in a compressed state, one end of the spring (17) is fixedly fitted with a side of the control rod (9) away from the sliding sleeve (7), and the other end of the spring (17) is fixedly fitted with a side of the sliding hole (16) close to the handrail (6).

6. An offshore wind turbine maintenance escalator according to claim 5, characterized in that: The control rod (9) is parallel to the handrail (6), and the control rod (9) and the handrail (6) are located on the same plane perpendicular to the foundation pile (1).

7. An offshore wind turbine maintenance escalator according to claim 6, characterized in that: The two ends of the control rod (9) close to the sliding sleeve (7) are respectively fixedly matched with the corresponding snap rings (8), the snap ring grooves (14) are symmetrically arranged about the middle position of the sliding groove (15), and the snap ring grooves (14) are all coaxial with the sliding groove (15), and the corresponding snap rings (8) are slidably installed in the snap ring grooves (14), and the snap rings (8) reciprocate in the corresponding snap ring grooves (14) along the vertical direction from the handrail (6) to the sliding sleeve (7).

8. An offshore wind turbine maintenance escalator according to claim 7, characterized in that: Both ends of the opening (18) of the snap ring (8) are provided with a clamping block (13), the clamping block (13) corresponds to and fits with the clamping groove (5) on the sliding rod (2), when the control rod (9) is pulled close to the armrest (6), the spring (17) is in an energy storage state, the snap ring (8) slides along the snap ring groove (14) toward the armrest (6), and the clamping block (13) is embedded in the clamping groove (5) at the corresponding position to form a limit clamping fit; When the control rod (9) releases energy through the spring (17) and approaches the sliding sleeve (7), the snap ring (8) slides along the snap ring groove (14) toward the sliding sleeve (7), and the clamping block (13) is disengaged from the clamping groove (5) at the corresponding position to release the limit clamping engagement.

9. An offshore wind turbine maintenance escalator according to claim 8, characterized in that: The snap ring groove (14) is in communication with the slide groove (15).

Images