Multifunctional crawling ladder for overhauling offshore wind power plant

Abstract

The utility model discloses a multifunctional ladder stand for overhauling an offshore wind farm, which comprises a fixed base, a rotating groove is arranged on the fixed base, a rotating rod is rotatably connected in the rotating groove, an overhauling ladder stand is arranged outside the rotating rod, and a shield net is fixedly arranged outside the overhauling ladder stand. The rotatable maintenance ladder stand is installed on the fixed base, the maintenance ladder stand can be rapidly erected, so that the erecting difficulty is reduced, a reinforced protective cover net is installed outside the maintenance ladder stand, when a worker climbs on the maintenance ladder stand, the worker can be effectively prevented from accidentally falling off from the maintenance ladder stand, and the safety of the worker is improved. And through a positioning seat mounted at the end part of the rotating rod, a positioning insertion rod can be inserted into a positioning groove in the positioning seat, so that the positioning insertion rod limits the rotation of the overhauling ladder stand, and the overhauling ladder stand is prevented from rotating during use.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore ladders, in particular to a multifunctional ladder for maintenance of offshore wind farms. Background Technique

[0002] Offshore wind farms are usually built at places relatively high above sea level. As the use time of the wind farm increases, regular maintenance is required. After the ship responsible for the maintenance of the wind farm docks, it needs to climb onto the wind farm through a maintenance ladder for maintenance. The existing ladders for maintenance of offshore wind farms can basically meet the daily use requirements, but there are still some deficiencies that need to be improved.

[0003] Most of the widely used ladders for maintenance of offshore wind farms on the market adopt an integrated design, which not only cannot be quickly fixed, but also has a large erection difficulty, and there is no safety protection outside the ladder, which has certain potential safety hazards. For this reason, we propose a multifunctional ladder for maintenance of offshore wind farms to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multifunctional ladder for maintenance of offshore wind farms to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multifunctional ladder for maintenance of offshore wind farms, including a fixed base, a rotating groove is opened on the fixed base, a rotating rod is rotatably connected in the rotating groove, a maintenance ladder is installed outside the rotating rod, a protective net is fixedly installed outside the maintenance ladder, a positioning seat is installed at the side end of the rotating rod, two groups of positioning grooves are opened on the positioning seat, and a positioning insertion rod is connected to the outside of the fixed base through an elastic component, and the positioning insertion rod can be inserted into the positioning groove on the positioning seat.

[0006] As a further preference of this technical solution, the elastic component includes a sleeve, a guiding chute, a guiding slider, a vertical seat, a positioning seat, a positioning groove, a return spring and a pulling handle. A sleeve is arranged below the positioning seat, a guiding chute is opened inside the sleeve, a guiding slider is arranged inside the guiding chute, a vertical seat is installed at the top end of the guiding slider, the positioning insertion rod is fixed at the end of the vertical seat, a pulling handle is installed at the end of the vertical seat away from the positioning insertion rod, and a return spring is arranged inside the guiding chute.

[0007] As a further preference of this technical solution, the positioning seat is designed in an "L" shape, and the included angle between the two groups of positioning grooves is ninety degrees.

[0008] As a further preference of this technical solution, the outer diameter of the positioning insertion rod is the same as the inner diameter of the positioning groove on the positioning seat.

[0009] As a further preference of the present technical solution, the outer wall of the handle is provided with anti-slip lines.

[0010] As a further preference of the present technical solution, the outer wall of the guiding slider is fully attached to the inner wall of the guiding chute, and the guiding slider is slidably connected to the guiding chute.

[0011] As a further preference of the present technical solution, both ends of the return spring are respectively connected to the outer wall of the guiding slider and the inner wall of the guiding chute, and the guiding slider forms an elastic connection with the inner wall of the guiding chute through the return spring.

[0012] The utility model provides a multifunctional ladder for maintenance of an offshore wind farm, which has the following beneficial effects:

[0013] 1. In the utility model, a rotatable maintenance ladder is installed on the fixed base, so that the maintenance ladder can be quickly erected, thereby reducing the erection difficulty. A reinforced protective net is installed outside the maintenance ladder. When a worker climbs on the maintenance ladder, it can effectively prevent the worker from accidentally falling from the maintenance ladder. Then, through the positioning seat installed at the end of the rotating rod, the positioning plug can be inserted into the positioning groove on the positioning seat, so that the positioning plug limits the rotation of the maintenance ladder, thereby preventing the maintenance ladder from rotating during use.

[0014] 2. In the utility model, a movable guiding slider is installed outside the fixed base. When the angle of the maintenance ladder needs to be adjusted, the maintenance ladder can be rotated by 90 degrees, and then the return spring releases elastic force to push the guiding slider to move, so that the positioning plug on the upright seat can be quickly inserted into the positioning groove on the positioning seat, thereby quickly forming a limit on the rotation angle of the maintenance ladder and improving the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 is a partial sectional structural schematic diagram of the utility model;

[0017] Figure 3 is for the Figure 1 enlarged structural schematic diagram of part A of the utility model;

[0018] Figure 4 is for the Figure 2 enlarged structural schematic diagram of part B of the utility model;

[0019] In the figure: 1, fixed base; 2, rotating groove; 3, rotating rod; 4, maintenance ladder; 5, protective net; 6, sleeve; 7, guiding chute; 8, guiding slider; 9, vertical seat; 10, positioning insertion rod; 11, positioning seat; 12, positioning groove; 13, return spring; 14, pull handle. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The present invention provides a technical solution: As Figures 1 to 4 shown, in this embodiment, a multifunctional ladder for maintenance of an offshore wind farm includes a fixed base 1. A rotating groove 2 is opened on the fixed base 1. A rotating rod 3 is rotatably connected in the rotating groove 2. A maintenance ladder 4 is installed outside the rotating rod 3. A protective net 5 is fixedly installed outside the maintenance ladder 4. A positioning seat 11 is installed at the side end of the rotating rod 3. Two groups of positioning grooves 12 are opened on the positioning seat 11. A positioning insertion rod 10 is connected to the outside of the fixed base 1 through an elastic component. The positioning insertion rod 10 can be inserted into the positioning groove 12 on the positioning seat 11.

[0022] By installing a rotatable maintenance ladder 4 on the fixed base 1, the maintenance ladder 4 can be quickly erected, thereby reducing the erection difficulty. And a reinforced protective net 5 is installed outside the maintenance ladder 4. When the staff climbs on the maintenance ladder 4, it can effectively prevent the staff from accidentally falling from the maintenance ladder 4. Then, through the positioning seat 11 installed at the end of the rotating rod 3, the positioning insertion rod 10 can be inserted into the positioning groove 12 on the positioning seat 11, so that the positioning insertion rod 10 limits the rotation of the maintenance ladder 4, thereby preventing the maintenance ladder 4 from rotating during use.

[0023] In other embodiments, the elastic component includes a sleeve 6, a guiding chute 7, a guiding slider 8, a vertical seat 9, a positioning seat 11, a positioning groove 12, a return spring 13 and a pull handle 14. A sleeve 6 is arranged below the positioning seat 11. A guiding chute 7 is opened inside the sleeve 6. A guiding slider 8 is arranged inside the guiding chute 7. A vertical seat 9 is installed at the top end of the guiding slider 8. The positioning insertion rod 10 is fixed at the end of the vertical seat 9. A pull handle 14 is installed at one end of the vertical seat 9 away from the positioning insertion rod 10. A return spring 13 is arranged inside the guiding chute 7;

[0024] By installing a movable guiding slider 8 outside the fixed base 1, when it is necessary to adjust the angle of the maintenance ladder 4, the pull handle 14 can be pulled, so that the guiding slider 8 drives the positioning plug rod 10 to move horizontally along the inside of the guiding chute 7. When the positioning plug rod 10 completely leaves the inside of the positioning groove 12 on the positioning seat 11, the maintenance ladder 4 can be rotated by ninety degrees. Then, the pulling force on the pull handle 14 is released, and the return spring 13 releases its elastic force to push the guiding slider 8 to move, so that the positioning plug rod 10 on the vertical seat 9 can quickly insert into the positioning groove 12 on the positioning seat 11, thereby quickly forming a limit on the rotation angle of the maintenance ladder 4 and improving the stability of the device during use.

[0025] In other embodiments, the positioning seat 11 is designed in an "L" shape, and the included angle between the two groups of positioning grooves 12 is ninety degrees;

[0026] With this design, after the rotating rod 3 drives the maintenance ladder 4 to rotate by ninety degrees, the positioning plug rod 10 can be inserted into the second positioning groove 12 on the positioning seat 11 after it rotates by ninety degrees.

[0027] In other embodiments, the outer diameter of the positioning plug rod 10 is the same as the inner diameter of the positioning groove 12 on the positioning seat 11;

[0028] With this design, when the positioning plug rod 10 is inserted into the positioning groove 12 on the positioning seat 11, it can effectively prevent the positioning plug rod 10 from shaking in the positioning groove 12 and improve the stability of the device during use.

[0029] In other embodiments, the outer wall of the pull handle 14 is provided with anti-slip lines;

[0030] With this design, it can effectively increase the friction between the pull handle 14 and the user's hand, facilitating the pulling of the pull handle 14.

[0031] In other embodiments, the outer wall of the guiding slider 8 fits closely with the inner wall of the guiding chute 7, and the guiding slider 8 is slidably connected to the guiding chute 7;

[0032] With this design, the guiding slider 8 can slide smoothly and quickly along the inside of the guiding chute 7, improving the stability of the device during use.

[0033] In other embodiments, both ends of the return spring 13 are respectively connected to the outer wall of the guiding slider 8 and the inner wall of the guiding chute 7, and the guiding slider 8 forms an elastic connection with the inner wall of the guiding chute 7 through the return spring 13;

[0034] With this design, the return spring 13 can continuously release the elastic force towards the fixed base 1 on the guiding slider 8, enabling the guiding slider 8 to drive the positioning plug rod 10 to quickly insert into the positioning groove 12 on the positioning seat 11.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional climbing ladder for maintenance of an offshore wind farm, comprising a fixed base (1), characterized in that: A rotating groove (2) is formed in the fixed base (1). A rotating rod (3) is rotatably connected in the rotating groove (2). A maintenance ladder (4) is installed outside the rotating rod (3). A protective net (5) is fixedly installed outside the maintenance ladder (4). A positioning seat (11) is installed at the side end of the rotating rod (3). Two positioning grooves (12) are formed in the positioning seat (11). A positioning insertion rod (10) is connected to the outside of the fixed base (1) through an elastic component. The positioning insertion rod (10) can be inserted into the positioning groove (12) on the positioning seat (11).

2. The multi-functional ladder for maintenance of an offshore wind farm according to claim 1, wherein: The elastic component includes a sleeve (6), a guiding chute (7), a guiding slider (8), a vertical seat (9), a positioning seat (11), a positioning groove (12), a return spring (13) and a pull handle (14). A sleeve (6) is arranged below the positioning seat (11). A guiding chute (7) is formed inside the sleeve (6). A guiding slider (8) is arranged inside the guiding chute (7). A vertical seat (9) is installed at the top end of the guiding slider (8). The positioning insertion rod (10) is fixed at the end of the vertical seat (9). A pull handle (14) is installed at the end of the vertical seat (9) away from the positioning insertion rod (10). A return spring (13) is arranged inside the guiding chute (7).

3. The multi-functional climbing ladder for maintenance of an offshore wind farm according to claim 1, characterized in that: The positioning seat (11) is designed in an "L" shape, and the included angle between the two positioning grooves (12) is ninety degrees.

4. A multifunctional ladder for maintenance of an offshore wind farm according to claim 1, characterized in that: The outer diameter of the positioning insertion rod (10) is the same as the inner diameter of the positioning groove (12) on the positioning seat (11).

5. The multi-functional ladder for maintenance of an offshore wind farm according to claim 2, characterized in that: Anti-slip patterns are arranged on the outer wall of the pull handle (14).

6. The multi-functional ladder for maintenance of an offshore wind farm according to claim 2, characterized in that: The outer wall of the guiding slider (8) is fully attached to the inner wall of the guiding chute (7), and the guiding slider (8) is slidably connected to the guiding chute (7).

7. The multi-functional ladder for maintenance of an offshore wind farm according to claim 2, characterized in that: Both ends of the return spring (13) are respectively connected to the outer wall of the guiding slider (8) and the inner wall of the guiding chute (7). The guiding slider (8) forms an elastic connection with the inner wall of the guiding chute (7) through the return spring (13).

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