An offshore trestle with wave compensation function

Abstract

The present invention relates to the technical field of marine engineering equipment, and provides an offshore trestle with a wave compensation function, comprising a lifting tower, an offshore trestle lifting platform, the offshore trestle lifting platform being slidably connected to a lifting track via a clamping seat; a locking device being provided between the offshore trestle lifting platform and the lifting tower; the offshore trestle being provided with an outer gangway ladder and an inner gangway ladder that are relatively telescopically movable; the outer gangway ladder having an end connected to a slewing mechanism, and the middle portion of the outer gangway ladder being connected to the slewing mechanism via a pitching mechanism; and a supporting device installed at the front end of the inner gangway ladder and provided with an impact compensation mechanism. The present invention can effectively buffer, compensate, and adapt to impacts caused by changes in the marine environment, thereby improving the stability of the connection between the offshore trestle and the wind power platform.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering equipment, and in particular to an offshore trestle with a wave compensation function. Background Art

[0002] With the transformation and upgrading of the global energy structure, offshore wind power, as a clean, renewable energy solution, is rapidly becoming a key direction for the development of new energy. The continuous expansion of offshore wind farms has placed higher demands on the performance and design of wind power operation and maintenance motherships, especially in deep-sea areas, where adaptability to sea conditions has become a key design focus. Equipped with advanced equipment and tools, wind power operation and maintenance motherships are key tools for inspecting, repairing, and maintaining wind power platforms. With the increasing complexity of operation and maintenance requirements, the traditional tower-based boarding method is no longer able to meet current needs. Therefore, operation and maintenance vessels equipped with boarding gangways have emerged. This design not only improves the safety of personnel transportation but also significantly enhances operation and maintenance efficiency, and is gradually becoming the mainstream choice for wind power operation and maintenance vessels.

[0003] The design and construction of a wind turbine operation and maintenance mothership equipped with an offshore pier presents numerous challenges. First, the complex and volatile marine environment, particularly the significant impact of wind and waves, can cause relative motion between the offshore pier and the wind turbine platform, leading to an offset in the connection position between the two. This offset can make docking between the pier and the platform difficult, or even impossible. Furthermore, the vertical and lateral dynamic loads caused by wind and waves increase structural stress on the pier and the wind turbine platform. Long-term exposure to these loads can lead to structural fatigue or even damage. The instability caused by wind and waves can make it more difficult for maintenance personnel to walk and operate on the pier, increasing operational risks and potentially subjecting the connecting components of the pier and the wind turbine platform to additional impact forces. Long-term impacts can damage the connecting equipment, impacting the stability and reliability of the entire system. Therefore, designing a supporting mechanism that can automatically compensate for positional deviations under the influence of wind and waves to ensure a stable connection between the offshore pier and the wind turbine platform has become a key issue in the design of wind turbine operation and maintenance vessels.

[0004] Secondly, in order to meet the operation and maintenance needs of wind power platforms at different heights, the wind power operation and maintenance mother ship needs to be equipped with a lifting tower, and the offshore trestle is raised and lowered along the lifting tower. The design of the offshore trestle's lifting tower needs to take into account lightness and stability to reduce the overall weight of the ship, improve the ship's cargo capacity and stability, and ensure safe and efficient operation in complex sea conditions. In addition, the reserved space for the elevator shaft and the installation of the elevator are also important aspects of the lifting tower design that cannot be ignored. They must be coordinated with the overall design of the lifting tower and meet the needs of elevator installation. In summary, an offshore trestle lifting tower with a light design, high stability and an effective locking device is of great significance for ensuring the safe and efficient operation of wind power operation and maintenance ships.

[0005] Furthermore, many wind turbine operation and maintenance motherships currently lack effective locking devices between the offshore trestle and the lifting tower. Under the influence of natural forces, the unlocked connection between the offshore trestle and the lifting tower is unstable and prone to relative displacement or shaking, increasing safety risks for operators and affecting operation speed and accuracy. Long-term unstable connections can also lead to wear and damage to the connecting components, affecting the structural stability and service life of the entire mothership. Summary of the Invention

[0006] In order to solve the problems existing in the background technology, the present invention provides an offshore pier with wave compensation function, which includes:

[0007] A lifting tower, the front side of the main body of the lifting tower is fixed with a track steel structure, the width of the track steel structure is larger than the main body, and the part of the track steel structure extending out of the main body is provided with a lifting track for installing the offshore trestle lifting platform;

[0008] The offshore trestle lifting platform is slidably connected to the lifting track through a clamping seat; a locking device is provided between the offshore trestle lifting platform and the lifting tower; a rotary mechanism is installed in the offshore trestle lifting platform;

[0009] An offshore trestle is provided with an outer gangway ladder and an inner gangway ladder which are relatively telescopically movable; the end of the outer gangway ladder is connected to the slewing mechanism, and the middle part of the outer gangway ladder is connected to the slewing mechanism through a pitching mechanism;

[0010] The supporting device is installed at the front end of the inner gangway ladder and is provided with an impact compensation mechanism.

[0011] In a preferred solution, the supporting device includes:

[0012] base;

[0013] A connecting rod support and a connecting rod mechanism connected to the connecting rod support;

[0014] A telescopic rod with two ends connected to the connecting rod and the base of the connecting rod mechanism through joint bearings;

[0015] A plurality of buffer blocks installed at the front end of the connecting rod mechanism;

[0016] An impact compensation mechanism is installed between the connecting rod support and the base to realize an elastic connection between the connecting rod support and the base; the impact compensation mechanism includes an elastic shock-absorbing block 1 and an elastic shock-absorbing block 2, and the elastic shock-absorbing block 1 and the elastic shock-absorbing block 2 are provided with pin holes, and the connecting rod support, the elastic shock-absorbing block 1 and the elastic shock-absorbing block 2 are connected in series by pins; the elastic shock-absorbing block 2 is installed in the base; four pin holes distributed in a diamond structure are provided in the middle parts of the connecting rod support, the elastic shock-absorbing block 1 and the elastic shock-absorbing block 2, and the elastic shock-absorbing block 1 and the elastic shock-absorbing block 2 are connected in series by four pins; a clamping seat is provided between the elastic shock-absorbing block 2 and the base, the elastic shock-absorbing block 2 is clamped in the clamping seat, and the clamping seat is fixed to the base; the material of the elastic shock-absorbing block 1 and the elastic shock-absorbing block 2 is any one of polyurethane and rubber.

[0017] In a preferred embodiment, the connecting rod mechanism includes a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod that are hinged to each other, and the three connecting rods and the fourth connecting rod have an arch structure; the first connecting rod and the second connecting rod are hinged to the connecting rod support, and the buffer block is installed on the third connecting rod and the fourth connecting rod.

[0018] In a preferred solution, the telescopic rod includes a first telescopic rod and a second telescopic rod, and the first telescopic rod and the second telescopic rod are respectively connected to the fourth connecting rod and the third connecting rod through joint bearings.

[0019] In a preferred embodiment, the lifting tower comprises:

[0020] The main body of the hollow tower structure;

[0021] A plurality of reinforcing ribs arranged at intervals along the vertical direction inside the main body;

[0022] Trapezoidal grooves and corner grooves opened on the reinforcing ribs;

[0023] Reinforcement ribs installed in the trapezoidal groove to connect reinforcing ribs of different heights;

[0024] Channel steel installed in the corner groove to connect reinforcing ribs of different heights;

[0025] A track steel structure fixedly mounted on the front side of the main body, the track steel structure is wider than the main body, and the portion extending out of the main body is provided with a lifting track for installing the offshore trestle lifting platform;

[0026] The reinforcing ribs, reinforcing bars and channel steels are fixedly connected to the inner wall of the main body;

[0027] There are elevator windows on the front and rear sides of the main body.

[0028] In a preferred solution, a lug plate for mounting the power mechanism is provided on the top of the main body.

[0029] In a preferred solution, the reinforcing ribs are steel plates with a U-shaped structure.

[0030] In a preferred embodiment, a locking device is installed in the clamping seat, and the locking device includes an L-shaped curved arm and a locking cylinder;

[0031] The corner position of the L-shaped curved arm is rotatably connected to the clamping seat;

[0032] The two ends of the locking cylinder are hinged to the clamping seat and the right end of the L-shaped crank arm through pins respectively;

[0033] The left end of the L-shaped crank arm is in contact with the lifting tower. A friction plate is installed on the left end of the L-shaped crank arm. The locking cylinder drives the L-shaped crank arm to rotate, increasing the friction between the friction plate at the left end of the L-shaped crank arm and the lifting tower to achieve locking.

[0034] In a preferred solution, the friction plate is made of rubber material, and the contact portion with the lifting tower is a curved surface structure.

[0035] In a preferred embodiment, a hinge hole is provided at the corner of the L-shaped curved arm, and a pin hole is provided at the clamping seat correspondingly. The hinge hole and the pin hole are connected by a pin shaft to realize the rotational connection between the L-shaped curved arm and the clamping seat.

[0036] The beneficial effects achieved by the present invention are:

[0037] First, the offshore trestle with wave compensation function provided by the present invention is designed with a combination of a lifting tower and an offshore trestle lifting platform. The setting of the lifting track enables the offshore trestle lifting platform to slide stably on the lifting tower, thereby ensuring the smooth lifting and lowering of the entire trestle; the design of the outer gangway and the inner gangway makes the length of the offshore trestle adjustable, and the combination of the slewing mechanism and the pitching mechanism enables the offshore trestle to achieve lifting, telescoping, rotation, and pitching multi-degree-of-freedom adjustment, which can effectively perform wind and wave compensation adjustment. At the same time, a supporting mechanism for connecting with the wind power platform is designed, including a connecting rod mechanism. The connecting part of the connecting rod mechanism and the offshore wind power platform is designed to be an arched connecting rod equipped with a buffer block. The arched connecting rod is connected by a telescopic rod and a joint bearing. When the connecting rod mechanism is impacted, part of the impact is absorbed by the buffer block. At the same time, the connecting rod mechanism can buffer the impact by passively changing its shape, and the shape change mode includes telescoping and left and right swinging; through the above method, the impact caused by changes in the marine environment can be effectively buffered, compensated and adapted, thereby improving the stability of the connection between the offshore trestle and the wind power platform.

[0038] Second, an impact compensation mechanism consisting of two elastic shock-absorbing blocks is designed between the connecting rod mechanism and the base. The two elastic shock-absorbing blocks are made of polyurethane or rubber materials. The two elastic shock-absorbing blocks are connected to the connecting rod support and the base through pins. When the connecting rod mechanism is impacted, even if the impact comes from different directions, the connecting rod mechanism can absorb the impact energy through various methods such as pitching, flipping, and twisting by relying on the deformation of the elastic shock-absorbing blocks. The deformation of the elastic shock-absorbing blocks can be in the form of compression, shearing, bending, or stretching, depending on the design of the shock-absorbing blocks and the direction of the force they are subjected to. The elastic shock-absorbing blocks can quickly return to their original shape after being impacted, which helps maintain the stability of the structure and reduce residual vibration after the impact. At the same time, the design of two elastic shock-absorbing blocks connected in series by pins helps the two elastic shock-absorbing blocks to generate mutual friction during the deformation process. This friction consumes part of the impact energy, achieving a better shock absorption effect.

[0039] Third, the lifting tower of the present invention adopts a hollow tower structure, and a number of reinforcing ribs are arranged at intervals along the vertical direction inside. This design not only optimizes the overall structure, but also significantly improves the load-bearing capacity and stability of the lifting tower. Especially in the case of changeable marine environment, this structure can resist the impact of external factors such as wind, waves, and tides, ensuring the safety of operation and maintenance personnel and the smooth progress of operations; by opening trapezoidal grooves and corner grooves on the reinforcing ribs, and installing reinforcing ribs and channel steels, the strength and rigidity of the lifting tower are effectively enhanced. This design not only improves the wind resistance of the lifting tower, but also ensures its stability and reliability during long-term use. The reinforcing ribs adopt U-shaped structural steel plates, which not only increases the stability of the structure, but also the opening is connected to the front side of the main body, further improving the wind resistance and stability of the lifting tower.

[0040] Fourth, the installation of the track steel structure enables the offshore trestle lift to move smoothly and smoothly along the lifting track, greatly improving the efficiency and safety of operators and maintenance personnel ascending and descending the gangway. Furthermore, the track steel structure is wider than the main body, increasing its stability and further ensuring operational safety. Elevator windows on the front and rear sides of the main body facilitate installation and maintenance, while also enhancing the tower's ventilation and extending its service life. The lugs on the top of the main body provide a convenient interface for installing the power mechanism, ensuring efficient and stable operation of the tower's power system.

[0041] Fifth, the present invention incorporates an effective locking device to ensure the secure connection of the offshore trestle platform to the lifting tower. This device utilizes an L-shaped curved arm and a locking cylinder, which pushes the L-shaped curved arm, increasing the friction between the left end of the L-shaped curved arm and the lifting tower to achieve locking. This design is not only simple in structure and easy to operate, but also provides a significant locking effect. The pivoting connection between the L-shaped curved arm and the clamping seat utilizes a pin-shaped hinge, making rotation more flexible and smooth, and less prone to jamming.

[0042] Sixth, a friction plate is installed on the left end of the L-shaped crank arm to further enhance the locking effect. Its curved surface allows it to better conform to the tower surface and improve friction. Furthermore, its rubber material ensures a sufficient friction coefficient while also providing a certain degree of elasticity and wear resistance, ensuring long-term use without damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 1. It is a schematic diagram of the structure of the supporting device from the upper rear perspective;

[0045] Figure 3 1. It is a schematic diagram of the structure of the supporting device from the front upper perspective;

[0046] Figure 4 1. It is a schematic diagram of the structure of the supporting device from a rear lower perspective;

[0047] Figure 5 It is a structural diagram of the impact compensation mechanism;

[0048] Figure 6 yes Figure 5 Schematic diagram of the explosion structure;

[0049] Figure 7 This is a schematic diagram of the installation structure of the supporting device and the offshore trestle;

[0050] Figure 8 This is a schematic diagram of the connection between the present invention and an offshore wind power platform;

[0051] Figure 9 It is a schematic diagram of the overall structure of the lifting tower;

[0052] Figure 10 yes Figure 9 Front-upper angle cross-sectional structural diagram;

[0053] Figure 11 yes Figure 9 The posterior superior angle cross-sectional structure diagram;

[0054] Figure 12 yes Figure 11 A top view of the structure;

[0055] Figure 13 This is a schematic diagram of the connection structure between the lifting tower, the offshore trestle lifting platform and the locking device;

[0056] Figure 14 This is a schematic diagram of the connection structure between the offshore trestle lifting platform and the locking device;

[0057] Figure 15This is a schematic diagram of the offshore trestle lift structure;

[0058] Figure 16 1. It is a schematic diagram of the locking device structure;

[0059] Figure 17 It is a rear view structural diagram of the connection between the offshore trestle lifting platform and the locking device.

[0060] Numbers in the figure:

[0061] 1. Lifting tower; 11. Main body; 12. Track steel structure; 13. Reinforced ribs; 131. Trapezoidal groove; 132. Corner groove; 14. Channel steel; 15. Reinforcement ribs; 16. Drag chain bracket; 17. Ear plate; 18. Elevator window; 2. Offshore trestle lift platform; 21. Crossbeam; 22. Clamping seat; 3. Support device; 31. Impact compensation mechanism; 311. Elastic shock absorber block 1; 312. Elastic shock absorber block 2; 313. Clamping seat; 32. Telescopic Rod; 321, first telescopic rod; 322, second telescopic rod; 33, connecting rod support; 34, base; 35, buffer block; 36, connecting rod mechanism; 361, first connecting rod; 362, second connecting rod; 363, third connecting rod; 364, fourth connecting rod; 37, joint bearing; 4, offshore pier; 5, locking device; 51, locking cylinder; 52, L-shaped crank arm; 53, hinge hole; 54, friction plate; 6, rotary mechanism; 7, pitch mechanism. DETAILED DESCRIPTION

[0062] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0063] Reference Figures 1-17 The present invention provides an offshore trestle 4 with a wave compensation function, which is provided with a lifting tower 1. A track steel structure 12 is fixedly installed on the front side of the main body 11 of the lifting tower 1. The track steel structure 12 is wider than the main body 11, and the part extending out of the main body 11 is provided with a lifting track for installing the offshore trestle lifting platform 2; the offshore trestle lifting platform 2 is slidably connected to the lifting track through a clamping seat 22; a locking device 5 is provided between the offshore trestle lifting platform 2 and the lifting tower 1; a slewing mechanism 6 is installed in the offshore trestle lifting platform 2; the offshore trestle 4 is provided with an outer gangway ladder and an inner gangway ladder that can be relatively telescopically moved; the end of the outer gangway ladder is connected to the slewing mechanism 6, and the middle part of the outer gangway ladder is connected to the slewing mechanism 6 through a pitching mechanism 7; a leaning device 3, the leaning device 3 is installed at the front end of the inner gangway ladder, and the leaning device 3 is provided with an impact compensation mechanism 31.

[0064] The supporting device 3 includes a base 34, a telescopic rod 32, a connecting rod support 33, and a connecting rod mechanism 36 connected to the connecting rod support 33. The connecting rod mechanism 36 includes a first connecting rod 361, a second connecting rod 362, a third connecting rod 363, and a fourth connecting rod 364 that are hinged to each other. The first connecting rod 361 and the second connecting rod 362 are hinged to the connecting rod support 33. The first connecting rod 361, the second connecting rod 362, the third connecting rod 363, and the fourth connecting rod 364 form a frame structure, which helps to increase stability. The third connecting rod 363 and the fourth connecting rod 364 are connecting rods that connect to the offshore wind power platform and are preferably designed as an arched structure, such as a polygonal structure or an arc structure. The buffer block 35 is mounted on the third connecting rod 363 and / or the fourth connecting rod 364. The buffer block 35 is preferably made of rubber material. The telescopic rod 32 includes a first telescopic rod 321 and a second telescopic rod 322 , which are respectively connected to a fourth connecting rod 364 and a third connecting rod 363 via joint bearings 37 . The joint bearings 37 enable the linkage mechanism 36 to change in multiple degrees of freedom.

[0065] When the connecting rod mechanism 36 is impacted, part of the impact is absorbed by the buffer block 35. At the same time, the connecting rod mechanism 36 can buffer the impact by passively changing its shape, and the shape change methods include extension and contraction and left and right swinging. Through the above methods, the impact caused by changes in the marine environment can be effectively buffered, compensated and adapted, thereby improving the stability of the connection between the offshore pier 4 and the wind power platform.

[0066] An impact compensation mechanism 31 is installed between the connecting rod support 33 and the base 34 to achieve an elastic connection between the connecting rod support 33 and the base 34. The impact compensation mechanism 31 includes an elastic shock-absorbing block 1 311 and an elastic shock-absorbing block 2 312. The elastic shock-absorbing block 1 311 and the elastic shock-absorbing block 2 312 are provided with pin holes. The connecting rod support 33, the elastic shock-absorbing block 1 311, and the elastic shock-absorbing block 2 312 are connected in series by pins. The elastic shock-absorbing block 2 312 is installed in the base 34. The preferred installation method is to provide a clamping seat 313 between the elastic shock-absorbing block 2 312 and the base 34. The elastic shock-absorbing block 2 312 is clamped in the clamping seat 313, and the clamping seat 313 is fixed to the base 34 by screws.

[0067] Four pin holes distributed in a diamond structure are opened in the middle of the connecting rod support 33, the elastic shock-absorbing block 1 311, and the elastic shock-absorbing block 2 312. The elastic shock-absorbing block 1 311 and the elastic shock-absorbing block 2 312 are connected in series by four pins. This design helps the elastic shock-absorbing block 1 311 and the elastic shock-absorbing block 2 312 to generate mutual friction during the deformation process. This friction consumes part of the impact energy and achieves a better shock-absorbing effect.

[0068] The material of the elastic shock-absorbing block 1 311 and the elastic shock-absorbing block 2 312 can be selected from any one of polyurethane and rubber. The elastic shock-absorbing blocks made of polyurethane or rubber are prone to various forms of deformation such as compression, shearing, bending or stretching, and the elastic shock-absorbing blocks can quickly return to their original shape after being impacted, which helps to maintain the stability of the structure and reduce residual vibration after the impact.

[0069] The lifting tower 1 includes a main body 11, which is a hollow tower structure and is preferably made of an integrally formed steel plate. The interior of the main body 11 can be set as an elevator shaft to install an elevator, and elevator windows 18 are provided on the front and rear sides of the main body 11. The number of elevator windows 18 can be set according to the height of the main body 11. Preferably, 3-8 elevator windows 18 are provided on the front side of the main body 11. People or materials can enter the elevator windows 18 on the rear side of the main body 11 and reach the offshore trestle lifting platform 2 through the elevator windows 18 on the front side of the main body 11. An ear plate 17 for installing a power mechanism is provided on the top of the main body 11. A winch, motor, etc. can be connected through the ear plate 17. The wire rope of the winch is connected to the offshore trestle lifting platform 2 through a pulley, driving the offshore trestle lifting platform 2 to rise and fall.

[0070] Several reinforcing ribs 13 are vertically spaced apart within the main body 11. These ribs 13 are preferably U-shaped steel plates, with the opening of the U-shaped structure connected to the front side of the main body 11. The ribs 13 are formed with trapezoidal grooves 131 and corner grooves 132. Ribs 15 are installed in the trapezoidal grooves 131 to connect the ribs 13 at different heights. Channel steel 14 is installed in the corner grooves 132 to connect the ribs 13 at different heights. The ribs 13, ribs 15, and channel steel 14 are fixedly attached to the inner wall of the main body 11.

[0071] A steel track structure 12 is fixedly mounted on the front side of the main body 11. This track structure 12 has a reserved opening for an elevator window 18. The track structure 12 is designed to be wider than the main body 11. The portion of the track structure 12 that extends beyond the main body 11 is equipped with a lifting track for mounting the offshore trestle lift 2. This allows the offshore trestle lift 2 to be clamped to the lifting track, enabling stable lifting.

[0072] In addition, in order to meet the layout needs of various cables, a drag chain bracket 16 for installing a drag chain is provided on the left side of the main body 11. The drag chain is installed in the drag chain bracket 16. When the drag chain rises and falls with the offshore pier lifting platform 2, the drag chain bracket 16 is used to ensure the stable movement of the drag chain.

[0073] The clamping base 22 of the offshore pier lift platform 2 is equipped with a locking device 5, which includes an L-shaped curved arm 52 and a locking cylinder 51. The corner of the L-shaped curved arm 52 is rotatably connected to the clamping base 22. A hinge hole 53 is provided at the corner of the L-shaped curved arm 52, and a corresponding pin hole is provided in the clamping base 22. The hinge hole 53 and the pin hole are connected by a pin shaft, realizing the rotational connection between the L-shaped curved arm 52 and the clamping base 22. The two ends of the locking cylinder 51 are respectively hinged to the clamping base 22 and the right end of the L-shaped curved arm 52 via a pin shaft. The left end of the L-shaped curved arm 52 is in contact with the lifting tower 1. The locking cylinder 51 drives the L-shaped curved arm 52 to rotate, increasing the friction between the left end of the L-shaped curved arm 52 and the lifting tower 1 to achieve locking. The left end of the L-shaped curved arm 52 is equipped with a friction plate 54, which preferably has a curved surface structure and is made of rubber material.

[0074] When the present invention is in use, when the offshore trestle platform 2 needs to carry the offshore trestle 4 for lifting, the locking cylinder 51 contracts, driving the L-shaped curved arm 52 to rotate away from the lifting tower 1, causing the friction plate 54 to disengage from the lifting tower 1, and the locking device 5 is in the released state, and the offshore trestle 4 is raised or lowered. When the offshore trestle 4 reaches the designated position and needs to be locked, the locking cylinder 51 extends, driving the L-shaped curved arm 52 to rotate toward the lifting tower 1, increasing the pressure between the friction plate 54 and the lifting tower 1, so that the friction plate 54 and the lifting tower 1 are in close contact. The friction between the friction plate 54 and the lifting tower 1 achieves the locking between the offshore trestle platform 2 and the lifting tower 1.

[0075] When the offshore trestle 4 is impacted by environmental factors such as wind and waves, the offshore trestle lifting platform 2, the telescopic drive winch, the slewing mechanism 6, and the pitching mechanism 7 of the offshore trestle 4 are controlled to perform related actions, so that the offshore trestle 4 can achieve multi-degree-of-freedom adjustment of lifting, telescoping, rotation, and pitching, and actively compensate for the wind and waves;

[0076] At the same time, the supporting device 3 performs passive wind and wave compensation. The buffer block 35 installed in the connecting rod mechanism 36 absorbs part of the impact energy. The connecting rod mechanism 36 changes its shape by telescoping and swinging left and right to cushion the impact. For impacts from different directions, the connecting rod mechanism 36 can absorb the impact energy by various means, such as pitching, flipping, and twisting, relying on the deformation of the elastic shock-absorbing block. The deformation of the elastic shock-absorbing block can be in the form of compression, shearing, bending, or stretching, depending on the design of the shock-absorbing block and the direction of the force it is subjected to. The elastic shock-absorbing block can quickly return to its original shape after an impact to maintain the stability of the structure and reduce residual vibration after the impact.

[0077] The present invention buffers, compensates and adapts to the impact caused by changes in the marine environment in the above manner, thereby improving the stability of the connection between the offshore trestle 4 and the wind power platform.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An offshore pier (4) with wave compensation function, characterized in that: It includes: A lifting tower (1), wherein a track steel structure (12) is fixedly installed on the front side of a main body (11) of the lifting tower (1), wherein the track steel structure (12) is wider than the main body (11), and a portion thereof extending from the main body (11) is provided with a lifting track for installing an offshore trestle lifting platform (2); An offshore trestle lifting platform (2) is slidably connected to a lifting track via a clamping seat (22); a locking device (5) is provided between the offshore trestle lifting platform (2) and the lifting tower (1); and a rotary mechanism (6) is installed in the offshore trestle lifting platform (2); An offshore trestle (4) is provided with an outer gangway ladder and an inner gangway ladder that are relatively telescopically movable; the end of the outer gangway ladder is connected to a slewing mechanism (6), and the middle of the outer gangway ladder is connected to the slewing mechanism (6) via a pitching mechanism (7); A leaning device (3), the leaning device (3) being installed at the front end of the inner gangway ladder, and the leaning device (3) being provided with an impact compensation mechanism (31); The supporting device (3) comprises: Base (34); A connecting rod support (33) and a connecting rod mechanism (36) connected to the connecting rod support (33); A telescopic rod (32) with two ends connected to the connecting rod of the connecting rod mechanism (36) and the base (34) through joint bearings (37); A plurality of buffer blocks (35) mounted on the front end of the connecting rod mechanism (36); An impact compensation mechanism (31) is installed between a connecting rod support (33) and a base (34) to realize elastic connection between the connecting rod support (33) and the base (34); the impact compensation mechanism (31) comprises an elastic shock absorbing block 1 (311) and an elastic shock absorbing block 2 (312); the elastic shock absorbing block 1 (311) and the elastic shock absorbing block 2 (312) are provided with pin holes; the connecting rod support (33), the elastic shock absorbing block 1 (311) and the elastic shock absorbing block 2 (312) are connected in series by pins; the elastic shock absorbing block 2 (312) is installed in the base (34); the connecting rod support (33) ), the elastic shock absorbing block 1 (311) and the elastic shock absorbing block 2 (312) are both provided with four pin holes distributed in a diamond structure in the middle, and the elastic shock absorbing block 1 (311) and the elastic shock absorbing block 2 (312) are connected in series by four pins; a clamping seat (313) is provided between the elastic shock absorbing block 2 (312) and the base (34), the elastic shock absorbing block 2 (312) is clamped in the clamping seat (313), and the clamping seat (313) is fixed to the base (34); the material of the elastic shock absorbing block 1 (311) and the elastic shock absorbing block 2 (312) is any one of polyurethane and rubber; The connecting rod mechanism (36) comprises a first connecting rod (361), a second connecting rod (362), a third connecting rod (363), and a fourth connecting rod (364) which are hinged to each other, and the three connecting rods and the fourth connecting rod (364) have an arch structure; the first connecting rod (361) and the second connecting rod (362) are hinged to the connecting rod support (33), and the buffer block (35) is installed on the third connecting rod (363) and the fourth connecting rod (364); The telescopic rod (32) comprises a first telescopic rod (321) and a second telescopic rod (322). The first telescopic rod (321) and the second telescopic rod (322) are respectively connected to the fourth connecting rod (364) and the third connecting rod (363) through joint bearings (37).

2. The offshore pier (4) with wave compensation function according to claim 1, characterized in that: The lifting tower (1) comprises: A main body (11) of a hollow tower structure; A plurality of reinforcing ribs (13) are arranged in a vertical direction at intervals within the main body (11); Trapezoidal grooves (131) and corner grooves (132) are provided on the reinforcing ribs (13); A reinforcing rib (15) installed in the trapezoidal groove (131) and connecting reinforcing ribs (13) of different heights; Channel steel (14) installed in the corner groove (132) and connecting reinforcing ribs (13) of different heights; A track steel structure (12) is fixedly mounted on the front side of the main body (11), wherein the track steel structure (12) is wider than the main body (11), and a portion thereof extending from the main body (11) is provided with a lifting track for mounting an offshore trestle lifting platform (2); The reinforcing ribs (13), reinforcing ribs (15), and channel steels (14) are fixedly connected to the inner wall of the main body (11); The front side and the rear side of the main body (11) are both provided with elevator windows (18).

3. The offshore pier (4) with wave compensation function according to claim 2, characterized in that: The top of the main body (11) is provided with an ear plate (17) for installing a power mechanism.

4. The offshore pier (4) with wave compensation function according to claim 2, characterized in that: The reinforcing ribs (13) are steel plates with a U-shaped structure.

5. The offshore trestle (4) with wave compensation function according to claim 1, characterized in that: A locking device (5) is installed in the clamping seat (22), and the locking device (5) includes an L-shaped curved arm (52) and a locking cylinder (51); The corner position of the L-shaped curved arm (52) is rotatably connected to the clamping seat (22); The two ends of the locking cylinder (51) are respectively hinged to the clamping seat (22) and the right end of the L-shaped curved arm (52) through a pin shaft; The left end of the L-shaped crank arm (52) is in contact with the lifting tower (1). A friction plate (54) is installed on the left end of the L-shaped crank arm (52). The locking cylinder (51) drives the L-shaped crank arm (52) to rotate, thereby increasing the friction force between the friction plate (54) at the left end of the L-shaped crank arm (52) and the lifting tower (1) to achieve locking.

6. The offshore trestle (4) with wave compensation function according to claim 5, characterized in that: The friction plate (54) is made of rubber material, and the contact portion with the lifting tower (1) is a curved surface structure.

7. The offshore pier (4) with wave compensation function according to claim 5, characterized in that: A hinge hole (53) is provided at a corner of the L-shaped curved arm (52), and a pin hole is correspondingly provided on the clamping seat (22). The hinge hole (53) and the pin hole are connected via a pin shaft to realize the rotational connection between the L-shaped curved arm (52) and the clamping seat (22).

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