Corrosion detection device for offshore wind power foundation pile

Abstract

The invention discloses an offshore wind power foundation pile corrosion detection device, and relates to the technical field of detection devices. The device comprises two lifting frames, the inner sides of the two lifting frames are jointly provided with a base column, the inner sides of the two lifting frames are jointly provided with a lifting mechanism, the outer side of the lifting mechanism is provided with a plurality of annularly-distributed detection mechanisms, and the upper ends and the lower ends of the two lifting frames are jointly provided with mounting mechanisms. The detection position can be flexibly adjusted, comprehensive detection of different heights of the foundation pillar can be achieved, or detection camera equipment can be effectively protected through the detection mechanism, it is ensured that the detection camera equipment stably works in the severe marine environment, meanwhile, clear images are obtained through the detection opening, and the detection accuracy is improved; the lifting frame can be firmly fixed on the foundation pillar, and the connection stability is enhanced by the anti-loose gasket and the anti-skid grains, so that the long-term reliable operation of the detection device is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a corrosion detection device for offshore wind power foundation piles. Background Art

[0002] Existing technologies for offshore wind turbine foundation pile corrosion detection devices are developing in a diversified manner, focusing on electrochemical monitoring, optical imaging, and multi-technical integration. These technologies, combined with filtration structures and intelligent monitoring units, enhance detection accuracy and equipment durability. Specifically, electrochemical monitoring uses resistance probes, potentiometric probes, and linear polarization resistance to monitor corrosion rates and potential changes in real time, but suffers from issues such as low sensitivity to localized corrosion and temperature interference. Optical imaging utilizes camera arrays and sealed detection windows, combined with filtration structures to prevent impurity interference, enabling high-definition imaging and real-time detection. However, this requires high sealing and imaging stability. Multi-technical integration solutions integrate electrochemical impedance spectroscopy, photoelectrochemical analysis, and corrosion potential monitoring units, leveraging the Internet of Things and cloud platforms to create a remote, automated monitoring system. This system can simultaneously acquire vibration status, corrosion potential, and structural safety data, but this significantly increases system complexity and cost. Furthermore, sacrificial anode and cathodic protection and anti-corrosion coatings remain fundamental protection measures and require a corrosion potential monitoring unit (including a reference electrode, signal converter, and data acquisition module) to maintain a protection range between -0.78 and -1.05V to avoid accelerated corrosion caused by over- or under-protection.

[0003] However, the existing offshore wind power foundation pile corrosion detection technology often faces many problems. Due to the high height of offshore wind power foundation piles and the differences in corrosion conditions in different parts, most detection devices are difficult to flexibly adjust the detection position and cannot conduct comprehensive detection of different heights of the base piles, resulting in corrosion conditions in some areas being difficult to detect in time; the offshore environment is harsh, the seawater has high salinity, high humidity and is often accompanied by strong winds and waves, and the detection equipment is susceptible to erosion and damage. At the same time, the images obtained during the detection are easily blurred due to environmental interference, affecting the accuracy of the detection and causing deviations in the judgment of the degree of corrosion; in addition, the installation of the detection device on the base pile is not stable enough. Under the long-term impact of waves and the attachment of marine organisms, it is easy to loosen, shift or even fall off, seriously affecting the normal implementation of the detection work and the service life of the device.

[0004] In response to the above problems, the inventors proposed an offshore wind power foundation pile corrosion detection device to solve the above problems. Summary of the Invention

[0005] In order to solve the problems of difficulty in flexibly adjusting the detection position, susceptibility of detection equipment to corrosion and damage, and insufficient stability of installation; the purpose of the present invention is to provide an offshore wind power foundation pile corrosion detection device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: an offshore wind power foundation pile corrosion detection device, comprising two lifting frames, a base column is commonly provided on the inner side of the two lifting frames, a lifting mechanism is commonly provided on the inner side of the two lifting frames, a plurality of detection mechanisms distributed in a ring are provided on the outer side of the lifting mechanism, and an installation mechanism is commonly provided on the upper and lower ends of the two lifting frames.

[0007] Preferably, the lifting mechanism includes two motors, the lower surfaces of the motors are fixedly matched with the upper ends of the lifting frames, the output ends of the motors are fixedly provided with threaded rods, the outer sides of the two threaded rods are commonly provided with a moving frame, the outer side of the moving frame is fixedly provided with a lifting plate, the inner side of the lifting plate is threadedly matched with the threaded rods, the lifting plate is located inside the moving frame, the outer side of the moving frame is fixedly provided with a plurality of positioning plates, the outer side of the mounting mechanism is fixedly provided with a plurality of positioning frames, one side of each two opposing surfaces of the positioning frames is commonly fixed with a positioning rod, and the outer side of the positioning rod is slidably fitted with the inner side of the positioning plate.

[0008] Preferably, the detection mechanism includes a waterproof shell, which is located on the outside of the mobile frame. A detection camera device is fixedly installed inside the waterproof shell. A sealed detection window is fixedly provided on one side of the waterproof shell, and the sealed detection window is located on one side of the detection camera device. A plurality of detection ports are opened on the outside of the mobile frame, and one side of the detection port is fixedly matched with one side of the waterproof shell.

[0009] Preferably, the mounting mechanism includes two arc-shaped hoops, the inner side of the arc-shaped hoop fits against the outer side of the base column, the outer side of the arc-shaped hoop is fixedly connected to one end of the lifting frame, both ends of the arc-shaped hoop are fixed with mounting plates, one side of each two mounting plates is jointly inserted with a mounting screw, both ends of the mounting screw are threaded with a fastening nut, one side of the fastening nut is provided with an anti-loosening washer, a plurality of fixing bolts distributed in a ring are inserted on the outer side of the arc-shaped hoop, and the fixing bolts are fixedly matched with the base column.

[0010] Preferably, an assembly frame is fixedly provided on the upper end of the lifting frame, and the upper surface of the assembly frame is fixedly connected to the motor.

[0011] Preferably, lifting slots are provided on both sides of the lifting frame, and the inner sides of the lifting slots are slidably fitted with the outer sides of the movable frame.

[0012] Preferably, a positioning hole is provided on the upper surface of the positioning plate, and the inner side of the positioning hole is slidably fitted with the positioning rod.

[0013] Preferably, a plurality of fixing holes distributed in a ring shape are opened on one side of the detection port, and the fixing holes are fixedly matched with one side of the waterproof housing.

[0014] Preferably, an anti-loosening rubber ring is provided on one side of the waterproof housing.

[0015] Preferably, anti-slip grooves are provided on the inner side of the arc-shaped hoop.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a lifting mechanism to drive the movable frame and the lifting plate to move up and down, which can flexibly adjust the detection position and realize comprehensive detection of different heights of the base column; 2. The present invention can effectively protect the detection camera equipment through the detection mechanism, ensuring its stable operation in harsh marine environments, while obtaining clear images through the detection port to improve detection accuracy; 3. The present invention can firmly fix the lifting frame on the base column through the installation mechanism, and the anti-loosening washers and anti-slip grooves enhance the stability of the connection, ensuring the long-term and reliable operation of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a partial structural diagram of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the lifting mechanism of the present invention.

[0021] Figure 4 It is a schematic cross-sectional view of the lifting mechanism structure of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the detection mechanism of the present invention.

[0023] Figure 6 It is an exploded schematic diagram of the detection mechanism structure of the present invention.

[0024] Figure 7 It is a schematic diagram of the installation mechanism structure of the present invention.

[0025] Figure 8 It is an exploded schematic diagram of the installation mechanism structure of the present invention.

[0026] In the figure: 1. Lifting frame; 2. Lifting mechanism; 3. Testing mechanism; 4. Mounting mechanism; 5. Base column; 20. Motor; 21. Assembly frame; 22. Threaded rod; 23. Moving frame; 24. Lifting slot; 25. Positioning frame; 26. Positioning rod; 27. Lifting plate; 28. Positioning hole; 29. ​​Positioning plate; 30. Testing port; 31. Waterproof housing; 32. Testing camera equipment; 33. Fixing hole; 34. Sealed testing window; 35. Anti-loosening rubber ring; 40. Arc hoop; 41. Mounting plate; 42. Anti-loosening washer; 43. Fastening nut; 44. Mounting screw; 45. Anti-slip groove; 46. Fixing bolt. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1: Figure 1-4 As shown, the present invention provides an offshore wind power foundation pile corrosion detection device, comprising two lifting frames 1, a base column 5 is commonly provided on the inner side of the two lifting frames 1, a lifting mechanism 2 is commonly provided on the inner side of the two lifting frames 1, a plurality of detection mechanisms 3 distributed in a ring are provided on the outer side of the lifting mechanism 2, and a mounting mechanism 4 is commonly provided on the upper and lower ends of the two lifting frames 1.

[0029] The lifting mechanism 2 includes two motors 20, the lower surface of the motor 20 is fixedly matched with the upper end of the lifting frame 1, the output end of the motor 20 is fixedly provided with a threaded rod 22, and the outer sides of the two threaded rods 22 are commonly provided with a moving frame 23, the outer side of the moving frame 23 is fixedly provided with a lifting plate 27, the inner side of the lifting plate 27 is threadedly matched with the threaded rod 22, and the lifting plate 27 is located inside the moving frame 23, the outer side of the moving frame 23 is fixedly provided with a plurality of positioning plates 29, and the outer side of the mounting mechanism 4 is fixedly provided with a plurality of positioning frames 25, and one side of each two opposing surfaces of the positioning frames 25 is commonly fixed with a positioning rod 26, and the outer side of the positioning rod 26 slides and fits with the inner side of the positioning plate 29.

[0030] By adopting the above technical solution, when using the offshore wind power foundation pile corrosion detection device, first start the motor 20, which is fixed to the assembly frame 21 at the upper end of the lifting frame 1. After the motor 20 is running, its output end drives the threaded rod 22 to rotate. Since the inner side of the lifting plate 27 is threadedly matched with the threaded rod 22, and the lifting plate 27 is fixed to the movable frame 23, and the outer side of the movable frame 23 is slidably fitted with the lifting groove 24 opened on both sides of the lifting frame 1, under the rotation of the threaded rod 22, the lifting plate 27 will move up and down along the threaded rod 22, thereby driving the movable frame 23 to slide up and down in the lifting groove 24. A plurality of positioning plates 29 are fixed on the outer side of the movable frame 23, and the positioning holes 28 opened on the upper surface of the positioning plates 29 are slidably fitted with the positioning rods 26 fixed on the positioning frame 25 outside the mounting mechanism 4. The cooperation between the positioning rods 26 and the positioning holes 28 can ensure the stability of the movable frame 23 during the up and down movement, prevent it from shaking, thereby driving the detection mechanism 3 to detect different height positions of the base column 5.

[0031] An assembly frame 21 is fixedly provided on the upper end of the lifting frame 1 , and the upper surface of the assembly frame 21 is fixedly connected to the motor 20 .

[0032] By adopting the above-mentioned technical solution, the installation of the assembly frame 21 provides a stable installation platform for the motor 20. Due to the complex marine environment, strong winds and waves, and the presence of factors such as seawater corrosion, if the motor 20 is directly installed on the lifting frame 1, it may be affected by vibration and shaking due to loose installation, resulting in unstable operation or even damage to the motor 20. However, by being fixedly connected to the lifting frame 1, the assembly frame 21 increases the stability and reliability of the motor 20 installation, effectively dissipates the vibration generated by the motor 20 during operation, and reduces the impact on the lifting frame 1. It also better protects the motor 20 from seawater corrosion, extends the service life of the motor 20, ensures the normal operation of the lifting mechanism 2, and drives the detection mechanism 3 to accurately detect the different heights of the base column 5.

[0033] Lifting slots 24 are provided on both sides of the lifting frame 1 , and the inner sides of the lifting slots 24 are slidably fitted with the outer sides of the moving frame 23 .

[0034] By adopting the above-mentioned technical solution, the design of the lifting groove 24 slidingly fitting with the outer side of the mobile frame 23 provides precise guidance for the up and down movement of the mobile frame 23. During the process of the lifting mechanism 2 driving the mobile frame 23 to rise and fall, if there is no guidance from the lifting groove 24, the mobile frame 23 may deviate, shake, etc., resulting in the detection mechanism 3 being unable to accurately detect the surface of the base column 5, affecting the accuracy of the detection results. The lifting groove 24 can limit the movement trajectory of the mobile frame 23, so that it can only move up and down along the direction of the lifting groove 24, ensuring the stability and linearity of the movement of the mobile frame 23, thereby ensuring that the detection mechanism 3 can perform comprehensive and accurate detection of the base column 5 at the appropriate position, thereby improving the working efficiency and detection quality of the entire detection device.

[0035] A positioning hole 28 is formed on the upper surface of the positioning plate 29 , and the inner side of the positioning hole 28 is slidably fitted with the positioning rod 26 .

[0036] By adopting the above technical solution, the sliding fit between the positioning hole 28 and the positioning rod 26 further enhances the stability of the mobile frame 23 during the lifting process. When the lifting mechanism 2 is working, the mobile frame 23 may be affected by various external forces during the up and down movement, such as shaking caused by wind and waves. The sliding fit between the positioning hole 28 on the positioning plate 29 and the positioning rod 26 can play a role in secondary positioning and restraining the mobile frame 23, preventing the mobile frame 23 from shifting in the horizontal direction, and ensuring that the mobile frame 23 always moves stably along the predetermined path. This not only helps to improve the accuracy of the detection of the detection mechanism 3, but also reduces the wear of the mobile frame 23 caused by shaking, extends the service life of the mobile frame 23, and reduces the maintenance cost of the device.

[0037] Working principle: When using the offshore wind power foundation pile corrosion detection device, first start the motor 20, which is fixed to the assembly frame 21 at the upper end of the lifting frame 1. After the motor 20 is running, its output end drives the threaded rod 22 to rotate. Since the inner side of the lifting plate 27 is threadedly matched with the threaded rod 22, and the lifting plate 27 is fixed on the movable frame 23, and the outer side of the movable frame 23 slides and fits with the lifting grooves 24 opened on both sides of the lifting frame 1, under the rotation of the threaded rod 22, the lifting plate 27 will move up and down along the threaded rod 22, thereby driving the movable frame 23 to slide up and down in the lifting grooves 24. A plurality of positioning plates 29 are fixed on the outer side of the movable frame 23, and the positioning holes 28 opened on the upper surface of the positioning plates 29 slide and fit with the positioning rods 26 fixed on the positioning frame 25 outside the mounting mechanism 4. The cooperation between the positioning rods 26 and the positioning holes 28 can ensure the stability of the movable frame 23 during the up and down movement, and prevent it from shaking, thereby driving the detection mechanism 3 to detect different height positions of the base column 5.

[0038] Example 2: Figure 5-6As shown, the detection mechanism 3 includes a waterproof shell 31, which is located on the outside of the mobile frame 23. A detection camera 32 is fixedly provided inside the waterproof shell 31. A sealed detection window 34 is fixedly provided on one side of the waterproof shell 31. The sealed detection window 34 is located on one side of the detection camera 32. A plurality of detection ports 30 are opened on the outside of the mobile frame 23, and one side of the detection port 30 is fixedly matched with one side of the waterproof shell 31.

[0039] By adopting the above technical solution, when the lifting mechanism 2 drives the mobile frame 23 to move to the appropriate detection height, the detection mechanism 3 starts to work. The waterproof shell 31 of the detection mechanism 3 is fixed to one side of the detection port 30 opened on the outside of the mobile frame 23, and is tightly fixed to one side of the waterproof shell 31 through a plurality of annular fixing holes 33 opened on one side of the detection port 30. A detection camera 32 is fixed inside the waterproof shell 31, and a sealed detection window 34 is provided on one side of the waterproof shell 31. The detection camera 32 shoots and detects the surface of the base column 5 through the sealed detection window 34. An anti-loosening rubber ring 35 is also provided on one side of the waterproof shell 31, which can further enhance the tightness of the connection between the waterproof shell 31 and the mobile frame 23, ensure that the detection camera 32 works stably in harsh marine environments, and obtains clear images of the surface of the base column 5, so as to accurately judge the corrosion condition of the base column 5.

[0040] A plurality of fixing holes 33 distributed in a ring shape are formed on one side of the detection port 30 , and the fixing holes 33 are fixedly matched with one side of the waterproof housing 31 .

[0041] By adopting the above-mentioned technical solution, the design of multiple annularly distributed fixing holes 33 allows the waterproof housing 31 to be more firmly fixed to one side of the detection port 30. In the harsh environment at sea, the device will be subjected to the impact of seawater, the shaking of wind and waves, and other forces. If the waterproof housing 31 is not firmly fixed, it is easy to loosen or fall off, causing the detection camera 32 to be exposed to the external environment and corroded and damaged by seawater. The multiple fixing holes 33 can tightly fix the waterproof housing 31 to the detection port 30 through connectors such as bolts, thereby enhancing the strength and stability of the connection, effectively preventing the waterproof housing 31 from loosening, protecting the detection camera 32 from the influence of the external environment, ensuring that the detection camera 32 can operate normally, and obtaining clear detection images, providing a reliable basis for accurately judging the corrosion condition of the base column 5.

[0042] An anti-loosening rubber ring 35 is provided on one side of the waterproof housing 31 .

[0043] By adopting the above technical solution, the provision of the anti-loosening rubber ring 35 further improves the sealing and stability of the connection between the waterproof housing 31 and the mobile frame 23. In the marine environment, seawater contains a large amount of salt and impurities. If there is a gap at the connection between the waterproof housing 31 and the mobile frame 23, seawater and impurities can easily enter the waterproof housing 31 and damage the detection camera equipment 32. The anti-loosening rubber ring 35 can fill the tiny gap at the connection, enhance the sealing effect, and effectively prevent seawater and impurities from entering. At the same time, the anti-loosening rubber ring 35 also has a certain elasticity, which can play a buffering role when the device is vibrated and shaken, reduce the impact force on the connection part, prevent the connection from loosening, and ensure that the waterproof housing 31 is always tightly fixed on the mobile frame 23, providing a safe and stable working environment for the detection camera equipment 32.

[0044] Working principle: When the lifting mechanism 2 drives the mobile frame 23 to move to the appropriate detection height, the detection mechanism 3 starts to work. The waterproof shell 31 of the detection mechanism 3 is fixed to one side of the detection port 30 opened on the outside of the mobile frame 23, and is tightly fixed with one side of the waterproof shell 31 through a plurality of annular fixing holes 33 opened on one side of the detection port 30. A detection camera device 32 is fixed inside the waterproof shell 31, and a sealed detection window 34 is provided on one side of the waterproof shell 31. The detection camera device 32 shoots and detects the surface of the base column 5 through the sealed detection window 34. An anti-loosening rubber ring 35 is also provided on one side of the waterproof shell 31, which can further enhance the tightness of the connection between the waterproof shell 31 and the mobile frame 23, ensure that the detection camera device 32 works stably in harsh marine environments, and obtains clear images of the surface of the base column 5, so as to accurately judge the corrosion condition of the base column 5.

[0045] Example 3: Figure 7-8 As shown, the mounting mechanism 4 includes two arc-shaped hoops 40, the inner side of the arc-shaped hoop 40 fits with the outer side of the base column 5, and the outer side of the arc-shaped hoop 40 is fixedly connected to one end of the lifting frame 1. Both ends of the arc-shaped hoop 40 are fixed with mounting plates 41, and one side of each two mounting plates 41 is jointly inserted with a mounting screw 44, and both ends of the mounting screw 44 are threaded with a fastening nut 43, and one side of the fastening nut 43 is provided with an anti-loosening washer 42, and a plurality of fixing bolts 46 distributed in a ring are inserted on the outer side of the arc-shaped hoop 40, and the fixing bolts 46 are fixedly matched with the base column 5.

[0046] By adopting the above technical solution, when installing the offshore wind power foundation pile corrosion detection device, first put the two arc hoops 40 on the outside of the base column 5, so that the anti-slip grooves 45 on the inner side of the arc hoop 40 are tightly fitted with the outer side of the base column 5, thereby enhancing the friction between the arc hoop 40 and the base column 5 and preventing sliding. Then, one end of the lifting frame 1 is fixedly connected to the outer side of the arc hoop 40. Next, align the mounting plates 41 at both ends of each two arc hoops 40, insert the mounting screws 44 on one side of the mounting plates 41, and thread the fastening nuts 43 on both ends of the mounting screws 44. Set the anti-loosening washers 42 on one side of the fastening nuts 43, and by tightening the fastening nuts 43, use the anti-loosening washers 42 to prevent the fastening nuts 43 from loosening, and the two arc hoops 40 are firmly fixed on the base column 5. Finally, a plurality of fixing bolts 46 distributed in a ring shape are inserted on the outside of the arc hoop 40 so that the fixing bolts 46 are fixedly matched with the base column 5, further enhancing the stability of the connection between the entire device and the base column 5, and ensuring that the detection device can operate reliably for a long time in complex marine environments.

[0047] The inner side of the arc-shaped hoop 40 is provided with anti-slip grooves 45 .

[0048] By adopting the above-mentioned technical solution, the anti-slip grooves 45 on the inner side of the arc hoop 40 can significantly increase the friction between the arc hoop 40 and the base column 5. In the complex environment at sea, the device will be affected by various external forces such as wind, waves, and ocean currents. If the friction between the arc hoop 40 and the base column 5 is insufficient, the arc hoop 40 will easily slide on the base column 5, causing the entire detection device to shift or fall off, and unable to perform normal detection work. The anti-slip grooves 45 increase the friction between the arc hoop 40 and the base column 5 by increasing the roughness of the contact surface, allowing the arc hoop 40 to be more firmly fixed to the base column 5. Even when subjected to large external forces, it can remain stable, ensuring the long-term and reliable operation of the detection device, and providing strong protection for corrosion detection of offshore wind power foundation piles.

[0049] Working principle: When installing the offshore wind power foundation pile corrosion detection device, first put the two arc hoops 40 on the outside of the base column 5, so that the anti-slip grooves 45 on the inner side of the arc hoop 40 fit tightly with the outside of the base column 5, thereby enhancing the friction between the arc hoop 40 and the base column 5 and preventing sliding. Then fix one end of the lifting frame 1 to the outside of the arc hoop 40. Next, align the mounting plates 41 at both ends of each two arc hoops 40, insert the mounting screws 44 on one side of the mounting plates 41, and thread the fastening nuts 43 on both ends of the mounting screws 44. Set an anti-loosening washer 42 on one side of the fastening nut 43, and by tightening the fastening nut 43, use the anti-loosening washer 42 to prevent the fastening nut 43 from loosening, and firmly fix the two arc hoops 40 on the base column 5. Finally, a plurality of fixing bolts 46 distributed in a ring shape are inserted on the outside of the arc hoop 40 so that the fixing bolts 46 are fixedly matched with the base column 5, further enhancing the stability of the connection between the entire device and the base column 5, and ensuring that the detection device can operate reliably for a long time in complex marine environments.

[0050] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An offshore wind power foundation pile corrosion detection device, comprising two lifting frames (1), characterized in that: A base column (5) is commonly provided on the inner sides of the two lifting frames (1), a lifting mechanism (2) is commonly provided on the inner sides of the two lifting frames (1), a plurality of detection mechanisms (3) distributed in a ring shape are provided on the outer sides of the lifting mechanism (2), and a mounting mechanism (4) is commonly provided on the upper and lower ends of the two lifting frames (1).

2. The offshore wind power foundation pile corrosion detection device according to claim 1, characterized in that: The lifting mechanism (2) includes two motors (20), the lower surface of the motor (20) is fixedly matched with the upper end of the lifting frame (1), the output end of the motor (20) is fixedly provided with a threaded rod (22), the outer sides of the two threaded rods (22) are commonly provided with a moving frame (23), the outer side of the moving frame (23) is fixedly provided with a lifting plate (27), the inner side of the lifting plate (27) is threadedly matched with the threaded rod (22), the lifting plate (27) is located inside the moving frame (23), the outer side of the moving frame (23) is fixedly provided with a plurality of positioning plates (29), the outer side of the mounting mechanism (4) is fixedly provided with a plurality of positioning frames (25), and one side of each two positioning frames (25) facing each other is commonly fixed with a positioning rod (26), and the outer side of the positioning rod (26) is slidably fitted with the inner side of the positioning plate (29).

3. The offshore wind power foundation pile corrosion detection device according to claim 1, characterized in that: The detection mechanism (3) includes a waterproof shell (31), the waterproof shell (31) is located outside the mobile frame (23), a detection camera (32) is fixedly provided inside the waterproof shell (31), a sealed detection window (34) is fixedly provided on one side of the waterproof shell (31), and the sealed detection window (34) is located on one side of the detection camera (32), and a plurality of detection ports (30) are opened on the outside of the mobile frame (23), and one side of the detection port (30) is fixedly matched with one side of the waterproof shell (31).

4. The offshore wind power foundation pile corrosion detection device according to claim 1, characterized in that: The mounting mechanism (4) includes two arc-shaped hoops (40), the inner side of the arc-shaped hoops (40) is fitted with the outer side of the base column (5), and the outer side of the arc-shaped hoops (40) is fixedly connected to one end of the lifting frame (1). Both ends of the arc-shaped hoops (40) are fixedly provided with mounting plates (41), and one side of each of the two mounting plates (41) is jointly inserted with a mounting screw (44), and both ends of the mounting screw (44) are threadedly provided with a fastening nut (43), and one side of the fastening nut (43) is provided with an anti-loosening washer (42), and the outer side of the arc-shaped hoops (40) is inserted with a plurality of fixing bolts (46) distributed in an annular shape, and the fixing bolts (46) are fixedly matched with the base column (5).

5. The offshore wind power foundation pile corrosion detection device according to claim 1, characterized in that: An assembly frame (21) is fixedly provided on the upper end of the lifting frame (1), and the upper surface of the assembly frame (21) is fixedly connected to the motor (20).

6. The offshore wind power foundation pile corrosion detection device according to claim 1, characterized in that: Both sides of the lifting frame (1) are provided with lifting grooves (24), and the inner sides of the lifting grooves (24) are slidably fitted with the outer sides of the movable frame (23).

7. The offshore wind power foundation pile corrosion detection device according to claim 2, characterized in that: A positioning hole (28) is provided on the upper surface of the positioning plate (29), and the inner side of the positioning hole (28) is slidably fitted with the positioning rod (26).

8. The offshore wind power foundation pile corrosion detection device according to claim 3, characterized in that: A plurality of fixing holes (33) distributed in an annular shape are provided on one side of the detection port (30), and the fixing holes (33) are fixedly matched with one side of the waterproof housing (31).

9. The offshore wind power foundation pile corrosion detection device according to claim 3, characterized in that: An anti-loosening rubber ring (35) is provided on one side of the waterproof housing (31).

10. The offshore wind power foundation pile corrosion detection device according to claim 4, characterized in that: Anti-slip grooves (45) are provided on the inner side of the arc-shaped hoop (40).

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