A climbing device for offshore bollards

Abstract

The application relates to the technical field of offshore columns, and discloses a climbing device for an offshore column, which comprises a guide rail extending along the axial direction of the column and the inclined support column; a first sliding seat rotatably provided with a first driving wheel; a second sliding seat rotatably provided with a second driving wheel; a first rotating rod rotatably arranged on the first sliding seat; a second rotating rod rotatably arranged on the second sliding seat; an adapter ring, the first rotating rod and the second rotating rod being rotatably connected with the adapter ring, and the first sliding seat and the second sliding seat being connected together; a transition rod coaxially penetrating through the adapter ring, the transition rod being provided with a transition wheel; the guide rail is provided with first guide grooves and second guide grooves which are parallel to each other, the first driving wheel and the second driving wheel are rotatably arranged in the first guide grooves, and the transition wheel is rotatably arranged in the second guide grooves; the first driving wheel, the second driving wheel and the transition wheel form a three-point distribution; and a transport frame, the opening of the transport frame always faces upward. The application improves the convenience and safety of operation and maintenance.

Description

Technical Field

[0001] This application relates to the technical field of marine bollards, and in particular to a climbing device for marine bollards. Background Technology

[0002] With the development of offshore photovoltaics, there are more and more offshore photovoltaic farms. The construction of photovoltaic systems relies on pillars supported on the sea surface. After the construction is completed, the relevant supports are dismantled. When maintenance personnel carry out maintenance, they can only reach the top of the pillars by climbing by hand or by using a maintenance platform.

[0003] The maintenance platform is generally installed on the column by sliding up and down through a lifting drive mechanism. The lifting drive mechanism includes a drive motor, and the output end of the drive motor is connected to the drive wheel of the maintenance platform for transmission.

[0004] In practical applications, at least one inclined support column is installed at the top of the column to better support the offshore photovoltaic system. The setting of the inclined support column causes the column to split. The existing maintenance platform is biased towards verticality, which makes it less suitable for scenarios with inclined support columns. Summary of the Invention

[0005] To adapt to various scenarios, this application provides a climbing device for offshore bollards.

[0006] This application provides a climbing device for offshore bollards, employing the following technical solution:

[0007] A climbing device for offshore bollards, comprising:

[0008] The guide rail extends along the axial direction of the column and the diagonal support column;

[0009] The first slide block is rotatably mounted with the first drive wheel;

[0010] The second slide is rotatably mounted with a second drive wheel, and the first slide is located above the second slide with a gap between them;

[0011] The first rotating rod is rotatably mounted on the first slide block;

[0012] The second rotating rod is rotatably mounted on the second slide block;

[0013] The adapter ring connects the first rotating rod and the second rotating rod in a circumferential direction, thereby connecting the first slide block and the second slide block.

[0014] A transition rod is coaxially passed through the adapter ring. One axial end of the transition rod is connected to a transition wheel. The guide rail is provided with a first guide groove and a second guide groove that are parallel to each other. The first drive wheel and the second drive wheel pass through the second guide groove and are rotatably installed in the first guide groove. The transition wheel is rotatably installed in the second guide groove. The first drive wheel, the second drive wheel and the transition wheel form a three-point distribution.

[0015] A drive mechanism is used to drive the first drive wheel and the second drive wheel to move up and down along the guide rail;

[0016] A reversing control unit is used to control the first drive wheel and the second drive wheel to reverse along the extension path of the guide rail;

[0017] The transport frame is rotatably mounted on the second slide. When the second slide slides along the inclined support column, the transport frame and the second slide are rotatably connected, and the opening of the transport frame always faces upward.

[0018] By adopting the above technical solution, the first drive wheel, the second drive wheel, and the transition wheel are distributed at three points. Mechanically, these three points define a plane. This layout creates a stable support structure for the device on the guide rails, effectively resisting lateral forces and overturning moments caused by wind and waves, whether on a vertical column or an inclined support column, thus improving the safety of high-altitude operations. The rotating rod system connecting the first and second slides is not a rigid whole but a movable connection. When the device moves from the vertical column to the inclined support column with an angle, the relative angle between the two guide rails changes. The movable connection allows relative deflection between the first and second slides, thus adapting to this angle change. When climbing on the inclined support column, the second slide itself is inclined, but the transport frame suspended on it will rotate around the hinge point due to the gravitational moment, ultimately keeping the frame horizontal and ensuring that the internal tools or equipment will not slip. This greatly improves the convenience and safety of maintenance operations, creating a system that can climb stably, adapt to angle changes, and automatically level, thus addressing the pain point that offshore photovoltaic maintenance platforms can only transport equipment vertically.

[0019] Optionally, both the first slide and the second slide are connected to a mounting rod, and the other end of both the first rotating rod and the second rotating rod is connected to a collar, which is coaxially sleeved on the mounting rod.

[0020] By adopting the above technical solution, the collar is fitted onto the mounting rod, allowing the rotating rod to rotate freely around the axis of the mounting rod.

[0021] Optionally, the transport frame and the mounting rod on the second slide are rotatably connected. The transport frame has a stroke groove on the side near the second slide. One end of the transition rod is located in the stroke groove. When the transport frame rotates about the mounting rod as the rotation center, the transition rod slides along the stroke groove.

[0022] By adopting the above technical solution, one end of the transition rod extends into the stroke groove. When the transport frame rotates for leveling, it will push and pull the transition rod to slide in the stroke groove, which restricts the rotation range of the transport frame and prevents it from shaking excessively.

[0023] Optionally, the guide rail is connected to a sub-rail, which has an arc-shaped structure. The central axis of the sub-rail coincides with the rotation center line of the transport frame. The sub-rail is located between the upright column and the inclined support column. When the transition wheel slides into the sub-rail, the first slide block stops at the inclined support column, and the second slide block stops on the upright column. The sub-rail is provided with a positioning block. When the transition wheel and the positioning block abut, the first rotating rod and the second rotating rod form a coaxial structure. The four positions of the transition wheel, the orthographic projection of the transition wheel, the first driving wheel, and the second driving wheel are connected to form a triangular structure.

[0024] By adopting the above technical solution, when the transition wheel abuts against the positioning block, the first and second rotating rods become coaxial, and the device structure becomes a temporary rigid triangular body. This provides a relatively stable and safe pausing platform for performing the next operation (such as personnel relocation or material handling), preventing swaying due to wind and waves at the turning point. This is a key guarantee for transitioning from automated operation to safe operation.

[0025] Optionally, the rotation center line of the transition wheel coincides with the central axis of the transition rod.

[0026] By adopting the above technical solution, the force on the transition wheel on the guide rail is directly transmitted along the axis of the transition rod, avoiding the generation of additional bending moment and allowing the transition wheel to slide smoothly into the rail.

[0027] Optionally, both the first drive wheel and the second drive wheel are gear structures, and a rack is installed on the wall of the first guide groove for meshing between the first drive wheel and the second drive wheel.

[0028] By adopting the above technical solution, gear meshing provides a definite and powerful driving force and precise displacement control, ensuring accurate climbing position, preventing accidental slippage, and achieving a high level of safety.

[0029] Optionally, both the first driving wheel and the second driving wheel are provided with a second annular groove, and the driving mechanism includes:

[0030] Two rotating seats are rotatably mounted on the first slide and the second slide, respectively, for connection with the reversing control unit;

[0031] The connecting frame is fixedly installed on the rotating seat at one end and sleeved in the second annular groove at the other end, forming a rotatable connection with the inner wall of the second annular groove.

[0032] The first drive gear is fixedly sleeved on the inner wall of the second annular groove;

[0033] The second drive gear is rotatably mounted on the rotating base;

[0034] A chain is fitted onto the first drive gear and the second drive gear;

[0035] A drive source, mounted on the rotating base, is used to drive the second drive gear.

[0036] By adopting the above technical solution, the drive source is started, which drives the second drive gear to rotate. The second drive gear drives the first drive gear to rotate through the chain. The first drive gear is fixed to the inner wall of the second ring groove, thereby driving the drive wheel to rotate and realizing the movement of the device.

[0037] Optionally, the commutation control unit includes:

[0038] Two servo motors are fixedly mounted on the first slide and the second slide, respectively, and the output shaft of the servo motor is connected to the rotating base;

[0039] The sensor is mounted on the connecting frame and electrically connected to the servo motor.

[0040] By adopting the above technical solution, when a change of direction is required (such as when encountering an obstacle or reaching the destination), the servo motor can precisely control the rotation of the rotating seat, realizing active and precise up and down switching.

[0041] Optionally, the rotating seat is fixedly connected to a guide rod, and the first slide and the second slide are fixedly connected to guide blocks. One end of the guide rod is inserted into the guide block, and the guide rod slides on the guide block as the rotating seat rotates.

[0042] By adopting the above technical solution, the cooperation between the guide rod and the guide block provides precise guidance for the rotation of the rotating seat, preventing the rotating seat from deviating or shaking during rotation, and ensuring the smoothness and accuracy of the rotating seat rotation; this helps to improve the working reliability of the entire drive mechanism and reversing control unit.

[0043] In summary, this application includes at least one of the following beneficial effects:

[0044] 1. The first drive wheel, the second drive wheel, and the transition wheel form a three-point distribution to construct a stable support structure, which can effectively resist the lateral force and overturning moment caused by wind and waves, and improve the safety of high-altitude operations. At the same time, the connection between the first and second slides is movable. When the device moves from the vertical column to the inclined support column with an angle, it can adapt to the relative angle change of the guide rail, and the transport frame can automatically level itself, ensuring that the internal tools or equipment will not slip, greatly improving the convenience and safety of operation and maintenance.

[0045] 2. The first and second drive wheels adopt a gear meshing structure, which provides the device with powerful driving force and precise displacement control, ensuring accurate climbing position. In addition, the reversing control unit can precisely control the rotation of the rotating seat through servo motors and sensors, realizing active and precise up and down switching, and providing a guarantee for safe operation. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of the climbing device according to an embodiment of this application applied to a photovoltaic column;

[0047] Figure 2 This is a partial structural cross-sectional view of the climbing device of this application applied to a photovoltaic column;

[0048] Figure 3 This is a schematic diagram of the overall structure of the climbing device according to an embodiment of this application;

[0049] Figure 4 This is a schematic diagram of the overall structure of the drive mechanism according to an embodiment of this application;

[0050] Figure 5 This is a cross-sectional view illustrating the cooperation between the guide rod and the guide block in an embodiment of this application;

[0051] Figure 6 This is a partial structural cross-sectional view of the climbing device applied to a photovoltaic column according to an embodiment of this application;

[0052] Figure 7 This is a schematic diagram of the overall structure of the transport frame according to an embodiment of this application;

[0053] Figure 8 This is a schematic diagram of the transition wheel entering the rail section according to an embodiment of this application;

[0054] Figure 9 This is a cross-sectional view of the transition wheel and the positioning block abutting in an embodiment of this application.

[0055] Explanation of reference numerals in the attached drawings: 10, column; 20, inclined support column; 100, guide rail; 110, first guide groove; 120, second guide groove; 130, rack; 140, clearance groove; 200, first slide; 210, first drive wheel; 201, second annular groove; 300, second slide; 310, second drive wheel; 400, drive mechanism; 410, rotating seat; 411, guide rod; 412, guide block; 420, connecting frame; 430, first drive gear. ; 440, Second drive gear; 450, Chain; 460, Drive source; 500, Reversing control unit; 510, Servo motor; 610, First rotating rod; 611, Slider; 612, Mounting rod; 613, Collar; 620, Second rotating rod; 630, Adapter ring; 631, First ring groove; 640, Transition rod; 641, Transition wheel; 700, Transport frame; 710, Stroke groove; 720, Protective door; 800, Rail divider; 810, Positioning block. Detailed Implementation

[0056] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail.

[0057] Reference Figure 1 and Figure 2 This application discloses a climbing device for offshore bollards, including a guide rail 100, a first slide block 200, a second slide block 300, a drive mechanism 400, a reversing control unit 500, a first rotating rod 610, a second rotating rod 620, a transition ring 630, a transition rod 640, and a transport frame 700. The guide rail 100 extends along the axial direction of the bollard 10 and the inclined support column 20, and the guide rail 100 passes between the bollard 10 and the inclined support column 20 through an arc transition, providing a climbing path for the entire device.

[0058] Reference Figure 2When the climbing device climbs on the column 10 or the inclined support column 20, the first slide 200 is located above the second slide 300, maintaining a certain distance between them. The first slide 200 is rotatably mounted with a first drive wheel 210, and the second slide 300 is rotatably mounted with a second drive wheel 310. Both the first drive wheel 210 and the second drive wheel 310 are gear-structured and have the same dimensions. A first guide groove 110 is provided on the guide rail 100 to guide the first drive wheel 210 and the second drive wheel 310 to move along the guide rail 100. A rack 130 is fixedly installed on the inner wall of the first guide groove 110, and the first drive wheel 210, the second drive wheel 310, and the rack 130 mesh with each other. The drive mechanism 400 is used to drive the first drive wheel 210 and the second drive wheel 310 to move upwards or downwards along the guide rail 100. The lower end of the guide rail 100 is provided with a clearance groove 140 for the first drive wheel 210 and the second drive wheel 310 to enter the first guide groove 110. After maintenance is completed, the climbing device can also be disengaged from the guide rail 100.

[0059] Reference Figure 3 and Figure 4 The drive mechanism 400 includes two rotating seats 410, a connecting frame 420 mounted on the rotating seats 410, a first drive gear 430, a second drive gear 440, a chain 450, and a drive source 460. The two rotating seats 410 are rotatably mounted on one side of the first slide 200 and the second slide 300, respectively. The rotating seats 410 are controlled by a reversing control unit 500. The rotating seats 410 and the connecting frame 420 are fixedly connected. One end of the connecting frame 420 extends into the first guide groove 110. A second annular groove 201 is formed at the axial midpoint of the first drive wheel 210 and the second drive wheel 310. The connecting frame 420 and the second annular groove 201 are rotatably connected. The first drive gear 430 is coaxially fixed within the second annular groove 201. The second drive gear 440 is rotatably mounted on the rotating seat 410. The outer diameter of the second drive gear 440 is smaller than the outer diameter of the first drive gear 430. A drive source 460 is mounted on a rotating base 410. The drive source 460 is a motor, and the output shaft of the motor is fixedly connected to the second drive gear 440. A toothed chain 450 is sleeved on the first drive gear 430 and the second drive gear 440. The motor drives the second drive gear 440 to rotate, and the power is transmitted to the first drive gear 430 through the chain 450, ultimately driving the first drive wheel 210 or the second drive wheel 310 to roll on the rack 130, thereby realizing the movement of the device.

[0060] Reference Figure 4The reversing control unit 500 includes two servo motors 510 respectively fixedly mounted on the first slide 200 and the second slide 300. The output shafts of the servo motors 510 are directly connected to the rotating seat 410 of the drive mechanism 400. A sensor (such as a torque sensor) mounted on the connecting bracket 420 is electrically connected to the servo motors 510. When the sensor detects an abnormality (such as obstruction) or receives a reversing command, the servo motors 510 start, precisely driving the rotating seat 410 to rotate, thereby driving the first drive wheel 210 to move along the rack 130.

[0061] The motor that drives the second drive gear 440 to rotate and the servo motor 510 are connected to a battery. The battery is installed on the side wall of the first slide 200 and the second slide 300, or installed in the transport frame 700. The battery can be removed for charging, or a charging socket can be provided for charging.

[0062] The device can be controlled for emergency stop and normal operation via remote control or a handgrip (with an operating switch). The handgrip can be mounted on the transport frame 700 for operation by maintenance personnel inside the frame. A fault alarm and indicator light can also be installed; if the drive mechanism 400 or the reversing control unit 500 malfunctions, an alarm will sound and the fault indicator light will flash. Before operating the climbing device, check for any faults and ensure they are resolved before use.

[0063] Reference Figure 5 To ensure the smoothness and precision of the rotating seat 410 during rotation, a guide rod 411 is fixedly connected to the rotating seat 410, and guide blocks 412 are fixed to the first slide 200 and the second slide 300. One end of the guide rod 411 is inserted into the guide block 412. When the rotating seat 410 rotates, the guide rod 411 slides within the guide block 412, providing linear guidance and support.

[0064] Reference Figure 5The first rotating rod 610 and the second rotating rod 620 are arranged parallel to the guide rail 100. Mounting rods 612 are mounted on both the first slide block 200 and the second slide block 300. One end of the first rotating rod 610 and the second rotating rod 620 are rotatably mounted on the mounting rod 612 via a collar 613, which can accommodate a bearing. The other ends of the first rotating rod 610 and the second rotating rod 620 are rotatably connected to a transition ring 630, forming a movable connection between the first slide block 200 and the second slide block 300. The transition ring 630 has a first annular groove 631. A slider 611 is connected to the other end of both the first rotating rod 610 and the second rotating rod 620, and the slider 611 is slidably mounted within the first annular groove 631 of the transition ring 630. When the first slide block 200 and the second slide block 300 slide on the column 10, there is a gap between the slider 611 and the inner ring wall of the first annular groove 631, so that the first slide block 200 and the second slide block 300 are flexibly connected, allowing the first slide block 200 and the second slide block 300 to generate relative deflection.

[0065] Reference Figure 6 The transition rod 640 passes through the adapter ring 630, and the transition rod 640 and the adapter ring 630 are coaxially arranged and fixedly connected. One axial end of the transition rod 640 is rotatably connected to the transition wheel 641 via a bearing, and the rotation center line of the transition wheel 641 coincides with the central axis of the transition rod 640. The guide rail 100 has a second guide groove 120 for the transition wheel 641 to move, and the guide rail 100 also has a relief groove 140 for the transition wheel 641 to enter the second guide groove 120. The end face of the transition wheel 641 is in contact with the inner wall of the second guide groove 120, so that the transition wheel 641 slides stably in the second guide groove 120. The second guide groove 120 and the first guide groove 110 are interconnected and arranged in parallel, and the first guide groove 110 and the second guide groove 120 are arranged sequentially along the radial direction of the column 10. The first drive wheel 210, the second drive wheel 310, and the transition wheel 641 are distributed in three points in space, forming a stable support surface that effectively resists overturning caused by wind and waves.

[0066] After the climbing device leaves the column 10, the first rotating rod 610 and the second rotating rod 620 move around the adapter ring 630, and the first slide 200 and the second slide 300 move closer to each other, reducing the size of the climbing device and making it more convenient to carry.

[0067] Reference Figure 6The transport frame 700 is used to carry maintenance materials or personnel. It is rotatably mounted on the second slide 300 via the mounting rod 612. A travel groove 710 is formed on the side of the transport frame 700 near the second slide 300, and the end of the transition rod 640 away from the transition wheel 641 extends into this travel groove 710. When the second slide 300 moves on the inclined support column 20, the transport frame 700 will automatically rotate around the hinge point of the mounting rod 612 under the action of gravity, and form a relative movement with the transition rod 640 through the travel groove 710. The transition rod 640 has a limiting effect, preventing the transport frame 700 from rotating excessively, thus keeping the opening of the transport frame 700 in a horizontal state and ensuring that the internal items will not spill out.

[0068] Reference Figure 7 The transport frame 700 is equipped with a protective door 720. When the protective door 720 is closed, a locking rod locks the protective door 720 onto the transport frame 700, thus providing a safety protection function.

[0069] Reference Figure 8 The guide rail 100 has an arc-shaped section 800 connected at the connection between the vertical column 10 and the inclined support column 20. The central axis of the section 800 coincides with the central axis of the mounting rod 612 of the second slide block 300, that is, the stroke groove 710 and the section 800 coincide, and the transition rod 640 can slide into the section 800 with the transition wheel 641.

[0070] Reference Figure 6 and Figure 8 When the first slide 200 has entered the inclined support column 20, the second slide 300 is still on the column 10, and the stroke groove 710 and the rail 800 are overlapping, the drive source 460 is turned off, and the transition rod 640 is pushed to make the transition wheel 641 slide into the rail 800.

[0071] Reference Figure 8 and Figure 9 A positioning block 810 is installed inside the rail 800. When the transition wheel 641 enters the rail 800 and abuts against the positioning block 810, the slider 611 of the first rotating rod 610 will press against the inner ring wall of the first annular groove 631 of the transition ring 630, and the first rotating rod 610 and the second rotating rod 620 will form a coaxial state. At this time, the center points of the orthographic projections of the first driving wheel 210, the second driving wheel 310 and the transition wheel 641 are not on a straight line. The four center points of the transition wheel 641, the orthographic projection of the transition wheel 641 on the plane of the guide rail 100, the first driving wheel 210 and the second driving wheel 310 are connected by straight lines to form a stable triangular structure, making the entire device a stable temporary working platform, which is convenient for personnel to operate or for material transfer.

[0072] With sea level as the reference, the overall height of the column 10 and the inclined support column 20 after fixed installation is about 3-5 meters. When the whole device becomes a stable temporary working platform, the personnel standing in the transport frame 700 can receive materials from the maintenance ship and pass them to the maintenance personnel on the photovoltaic bracket, which can speed up the transportation of materials.

[0073] The implementation principle of a climbing device for offshore bollards according to an embodiment of this application is as follows:

[0074] The first slide 200 and the second slide 300 are guided by the guide rail 100, and the first drive wheel 210 and the second drive wheel 310 are driven by the drive mechanism 400 to move on the guide rail 100. The first drive wheel 210, the second drive wheel 310 and the transition wheel 641 form a three-point distribution to build a stable support structure. The first slide 200 and the second slide 300 are movably connected. When the device moves from the vertical column 10 to the inclined support column 20 with an included angle, it can adapt to the change in the relative angle of the guide rail 100, and the transport frame 700 passes through the stroke groove. The relative movement of 710 and transition rod 640 enables automatic leveling, ensuring that internal tools or equipment will not slip, greatly improving the convenience and safety of operation and maintenance. At the same time, the first drive wheel 210 and the second drive wheel 310 adopt a gear meshing structure, providing the device with powerful driving force and precise displacement control, ensuring accurate climbing position. In addition, the reversing control unit 500 can precisely control the rotation of the rotating seat 410 through the servo motor 510 and sensors, realizing active and precise up and down switching, providing a guarantee for safe operation.

[0075] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A climbing device for offshore columns, characterized in that: The utility model relates to a kind of vertical transportation device, including: Guide rail (100), extend along the axial direction of column (10) and inclined support column (20); First sliding seat (200), rotatably installed with first driving wheel (210); Second sliding seat (300), rotatably installed with second driving wheel (310), the first sliding seat (200) is located above the second sliding seat (300) and leaves interval; First rotating rod (610), rotatably installed on first sliding seat (200); Second rotating rod (620), rotatably installed on second sliding seat (300); Adapter ring (630), the first rotating rod (610) and the second rotating rod (620) are slidably connected along the circumferential direction of the adapter ring (630), connect the first sliding seat (200) and the second sliding seat (300); Transition rod (640), the transition rod (640) is coaxially arranged through the adapter ring (630), and the transition rod (640) is rotatably installed in the second guide groove (120) after being arranged through the second guide groove (120) of the guide rail (100), and the first driving wheel (210) and the second driving wheel (310) are rotatably installed in the first guide groove (110); Driving mechanism (400), for driving the first driving wheel (210) and the second driving wheel (310) to move up and down along the guide rail (100); Reversing control unit (500), for controlling the first driving wheel (210) and the second driving wheel (310) to reverse along the extension path of guide rail (100); Transport frame (700), rotatably installed on the second sliding seat (300), when the second sliding seat (300) slides along the inclined support column (20), the transport frame (700) and the second sliding seat (300) are rotatably connected, and the opening of the transport frame (700) is always upward; The first sliding seat (200) and the second sliding seat (300) are connected with mounting rod (612), and the other end of the first rotating rod (610) and the second rotating rod (620) is connected with sleeve ring (613), and the sleeve ring (613) is coaxially sleeved on the mounting rod (612); The mounting rod (612) on the transport frame (700) and the second sliding seat (300) is rotatably connected, one side of the transport frame (700) close to the second sliding seat (300) is provided with stroke groove (710), one end of the transition rod (640) is located in the stroke groove (710), and when the transport frame (700) rotates with the mounting rod (612) as the rotation center, the transition rod (640) slides along the stroke groove (710). The guide rail (100) is communicated with a sub-track (800), the sub-track (800) is in a circular arc structure, the central axis of the sub-track (800) and the rotation center line of the transport frame (700) coincide, the sub-track (800) is located between the vertical column (10) and the inclined support column (20), when the transition wheel (641) slides into the sub-track (800), the first sliding seat (200) stops at the inclined support column (20), the second sliding seat (300) stops on the vertical column (10), the sub-track (800) is provided with a positioning block (810), when the transition wheel (641) and the positioning block (810) abut, the first rotating rod (610) and the second rotating rod (620) are coaxial, the transition wheel (641), the orthographic projection of the transition wheel (641), the first driving wheel (210) and the second driving wheel (310) form a triangular structure.

2. A climbing device for offshore columns according to claim 1, characterized in that: The rotation center line of the transition wheel (641) and the central axis of the transition rod (640) coincide.

3. A climbing device for offshore columns according to claim 1, characterized in that: The first driving wheel (210) and the second driving wheel (310) are both gear structures, the first guide groove (110) is provided with a rack (130) on the groove wall, for engaging the first driving wheel (210) and the second driving wheel (310).

4. A climbing device for offshore columns according to claim 3, characterized in that: The first driving wheel (210) and the second driving wheel (310) are both provided with a second ring groove (201), the driving mechanism (400) comprises: Two rotating seats (410) are respectively rotatably installed on the first sliding seat (200) and the second sliding seat (300), for connecting with the reversing control unit (500); A connecting frame (420) is fixedly installed on one end of the rotating seat (410) and sleeved on the other end in the second ring groove (201), and forms a rotating connection relationship with the inner wall of the second ring groove (201); A first driving gear (430) is fixedly sleeved on the inner wall of the second ring groove (201); A second driving gear (440) is rotatably installed on the rotating seat (410); A chain (450) is sleeved on the first driving gear (430) and the second driving gear (440); A driving source (460) is installed on the rotating seat (410), for driving the second driving gear (440).

5. A climbing device for offshore columns according to claim 4, characterized in that: The reversing control unit (500) comprises: Two servo motors (510) are respectively fixedly installed on the first sliding seat (200) and the second sliding seat (300), the output shaft of the servo motor (510) is connected with the rotating seat (410); A sensor is installed on the connecting frame (420) and electrically connected with the servo motor (510).

6. A climbing device for offshore columns according to claim 5, characterized in that: The rotating base (410) is fixedly connected with a guide rod (411), the first sliding base (200) and the second sliding base (300) are fixedly connected with guide blocks (412), one end of the guide rod (411) is inserted into the guide blocks (412), and the guide rod (411) slides on the guide blocks (412) along with rotation of the rotating base (410).

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