A lifting platform for offshore pile top construction

Abstract

This invention discloses a lifting platform for offshore pile top construction, relating to the field of marine engineering technology. It includes a main structure with four lifting mechanisms movably inserted into its inner wall, and two drive mechanisms fixedly installed on the outer walls of each of the four lifting mechanisms. Each lifting mechanism includes a fixed pile. In this invention, after the device is started, the motor, through its shaft and transmission gear, enables two half-gears to rotate synchronously but in opposite directions, thereby sequentially driving the racks on the left and right sides to move, thus driving the platform to lift. The platform is secured by the cooperation between two types of metal locking blocks and positioning holes. Compared to traditional gear and rack locking structures, in harsh environments like the sea with high winds and waves, the locking blocks and fixing holes provide better resistance to external interference, ensuring the stability of the lifting platform. Furthermore, the structure is relatively simple and reliable, with a low failure rate, thereby improving construction safety.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, specifically to a lifting platform for offshore pile top construction. Background Technology

[0002] In the field of marine engineering, offshore pile foundation construction is a crucial task that directly relates to the stability and safety of offshore structures (such as offshore platforms, bridges, and wind turbine towers). The pile top construction phase, especially the installation of pile caps and the lowering of steel cages, often requires the use of lifting platforms. In the field of offshore pile top construction, rack and pinion lifting mechanisms, as a common lifting method, have long been widely used in various lifting platforms. However, with the continuous advancement of marine engineering technology and the increasing demands of construction, some inherent shortcomings of rack and pinion lifting mechanisms have gradually become apparent, adversely affecting the safety and efficiency of offshore pile top construction.

[0003] During offshore pile top construction, rack and pinion lifting mechanisms need to handle heavy components. This results in the gears and racks being subjected to continuous friction and uneven stress during prolonged and high-frequency meshing. This continuous mechanical stress not only accelerates the wear of the gears and racks but may also cause tooth surface peeling or breakage, thus seriously affecting the reliability and service life of the lifting mechanism. More importantly, during the lifting process, the lifting platform may be subjected to the impact and vibration of natural forces such as wind, waves, and tides. When the rack and pinion lifting mechanism is in a locked state, these external impacts and vibrations may cause the locking device to loosen or fail. Once the locking device cannot maintain a stable locking force, the stability and safety of the lifting platform will be seriously threatened. Summary of the Invention

[0004] The purpose of this invention is to provide a lifting platform for offshore pile top construction. The platform is raised and lowered by a motor-driven rack and pinion mechanism, while an electromagnet clamping device precisely positions the platform on the fixed pile, thus avoiding loosening that may occur during rack and pinion meshing. This solves the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lifting platform for offshore pile top construction, comprising a main body, wherein four lifting mechanisms are movably inserted into the inner surface wall of the main body, and two drive mechanisms are fixedly installed on the outer surface walls of the four lifting mechanisms.

[0006] The lifting mechanism includes a fixed pile, the outer wall of which has multiple sets of positioning holes. A set of retaining sleeves is movably fitted onto the outer wall of the fixed pile. Two sliding rods are movably inserted into the inner wall of each set of retaining sleeves. A spring is wound around the outer wall of each set of sliding rods, and the top of the springs is fixedly connected to the bottom of the retaining sleeves. A fixing ring is fixedly installed between the bottoms of the sliding rods, and the inner wall of the fixing ring is movably inserted into the outer wall of the fixed pile. The bottom of the springs is fixedly connected to the top of the fixing ring. Two mounting grooves are formed on the inner wall of each set of retaining sleeves. An electromagnet is fixedly installed on one side of the inner wall of each set of mounting grooves, and a second spring is fixedly installed on one side of the inner wall of each set of mounting grooves.

[0007] Preferably, a metal clip two is fixedly installed on one side of the outer wall of a set of springs two, and the outer wall of the set of metal clip two is movably inserted into the inner wall of a set of mounting grooves, while the outer wall of the set of metal clip two is movably inserted into the inner wall of a set of positioning holes.

[0008] Preferably, the main body includes a base, the bottom of which is fixedly connected to the top of four sets of sliding rods, the top of which has four mounting holes, a guardrail fixedly installed on the top of which, the inner surface of each of the four mounting holes has a set of movable grooves, and an electric telescopic rod is fixedly installed on one side of the inner wall of each of the four sets of movable grooves.

[0009] Preferably, each of the four sets of electric telescopic rods has a metal locking block fixedly installed at its telescopic end, and the outer walls of the four sets of metal locking blocks are movably inserted into the inner wall of a set of movable slots, and the outer walls of the four sets of metal locking blocks are movably inserted into the inner wall of a set of positioning holes. A set of support legs is fixedly installed at the bottom of the base, a buoyancy seat is fixedly installed between the bottoms of the set of support legs, and a set of propellers is fixedly installed at the bottom of the buoyancy seat.

[0010] Preferably, a set of electric hoists is fixedly installed at the bottom of the base, and a fixed anchor is wound around the outer wall of the set of electric hoists. An electric valve is fixedly connected to the top of the buoyancy seat, and a water pump is fixedly installed at the bottom of the inner wall of the buoyancy seat. A water pipe is fixedly connected to the output end of the water pump, and the outer wall of the water pipe is fixedly inserted into the inside of the buoyancy seat.

[0011] Preferably, the drive mechanism includes a protective cover, the tops of the eight protective covers are fixedly connected to the bottom of the base, two shaft holes are opened on one side of the outer wall of the protective cover, and a set of shaft holes are opened on the outer wall of the protective cover.

[0012] Preferably, a motor is fixedly installed on one side of the outer wall of the protective cover, and a worm gear is fixedly installed at the output end of the motor, and the inner surface of a set of shaft holes is movably inserted into the outer surface of the worm gear.

[0013] Preferably, the inner surface of the protective cover has two grooves, and a slider is movably embedded in the inner surface of each of the two grooves. A rack is fixedly installed on one side of the outer wall of each of the two sliders.

[0014] Preferably, the outer walls of one set of the ferrules are fixedly connected to the outer walls of the four racks, and the inner walls of the two shaft holes are movably inserted with rotating shafts, and the outer walls of the two rotating shafts are fixedly fitted with half gears.

[0015] Preferably, transmission gears are fixedly sleeved on the outer walls of both shafts, and the outer walls of the two transmission gears mesh with each other. A worm gear is fixedly sleeved on the outer wall of one of the two shafts, and the outer wall of the worm gear meshes with the inner wall of the worm.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, after the device is started, the motor can drive the two half gears to rotate synchronously but in opposite directions through the rotating shaft and the transmission gear. This drives the racks on the left and right sides to move in sequence, thereby driving the platform to lift and lower. The platform is secured by the cooperation between two metal clips and positioning holes. Compared with the traditional gear and rack clamping structure, in harsh environments such as the sea with large waves, the cooperation between the clips and the fixing holes can better resist external interference and ensure the stability of the lifting platform. At the same time, the structure is relatively simple and reliable with a low failure rate, thereby improving the safety of construction.

[0018] In this invention, the self-locking characteristic of the worm gear mechanism in the lifting platform ensures that the load position remains stable even when the motor stops working, thus ensuring the stability of the lifting platform in the stopped state, preventing accidental movement or falls, and improving construction safety.

[0019] In this invention, when the platform needs to be fixed in deep water, seawater is drawn in by a water pump, causing most of the buoyancy seat to be submerged below the sea level. This significantly improves the overall stability of the platform and reduces the risk of swaying and tilting. The propeller at the bottom of the buoyancy seat can quickly generate a reverse thrust under the push of the waves, helping the platform to accurately adjust its position and ensuring that the platform always maintains the correct operating posture. Attached Figure Description

[0020] Figure 1 This is a perspective view of the main structure of a lifting platform for offshore pile top construction according to the present invention.

[0021] Figure 2 This is a top-down exploded view of the main structure of a lifting platform for offshore pile top construction according to the present invention;

[0022] Figure 3This is a sectional perspective view of the main structure of a lifting platform for offshore pile top construction according to the present invention;

[0023] Figure 4 This is a three-dimensional schematic diagram of the lifting mechanism in a lifting platform for offshore pile top construction according to the present invention;

[0024] Figure 5 This is a partial three-dimensional sectional view of the lifting mechanism in a lifting platform for offshore pile top construction according to the present invention;

[0025] Figure 6 This is a schematic diagram showing the disassembled drive mechanism of a lifting platform for offshore pile top construction according to the present invention.

[0026] Figure 7 This is a top-down exploded view of the drive mechanism in a lifting platform for offshore pile top construction according to the present invention;

[0027] Figure 8 This is a top perspective view of the lifting mechanism and drive mechanism in a lifting platform for offshore pile top construction according to the present invention.

[0028] In the diagram: 1. Main structure; 101. Base; 102. Mounting hole; 103. Guardrail; 104. Movable groove; 105. Electric telescopic rod; 106. Metal clamping block one; 107. Support leg; 108. Buoyancy seat; 109. Propeller; 110. Electric hoist; 111. Fixed anchor; 112. Electric valve; 113. Water pump; 114. Water pipe; 2. Lifting mechanism; 201. Fixed pile; 202. Positioning hole; 203. Sleeve; 204. Slide rod; 205. Spring 1; 206. Fixing ring; 207. Mounting groove; 208. Electromagnet; 209. Spring 2; 210. Metal clip 2; 3. Drive mechanism; 301. Protective cover; 302. Shaft hole 1; 303. Shaft hole 2; 304. Motor; 305. Worm gear; 306. Slide groove; 307. Slider; 308. Rack; 309. Rotating shaft; 310. Half gear; 311. Transmission gear; 312. Worm wheel. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Refer to Figure 1 - Figure 8As shown, the present invention provides a lifting platform for offshore pile top construction, including a main body 1, four lifting mechanisms 2 are movably inserted into the inner surface wall of the main body 1, and two drive mechanisms 3 are fixedly installed on the outer surface wall of each of the four lifting mechanisms 2.

[0031] The main body 1 includes a base 101, the bottom of which is fixedly connected to the top of four sets of sliding rods 204;

[0032] The lifting mechanism 2 includes a fixed post 201. The outer wall of the fixed post 201 has multiple sets of positioning holes 202. A set of retaining sleeves 203 are movably fitted onto the outer wall of the fixed post 201. Two sliding rods 204 are movably inserted into the inner wall of each retaining sleeve 203. Springs 205 are wound around the outer wall of each sliding rod 204, and the top of each spring 205 is fixedly connected to the bottom of each retaining sleeve 203. A fixing ring 206 is fixedly installed between the bottoms of each sliding rod 204, and the inner wall of the fixing ring 206 is movably inserted into the outer wall of the fixed post 201. The bottom of the first 205 is fixedly connected to the top of the fixing ring 206. The inner wall of the first set of sleeves 203 has two mounting grooves 207. An electromagnet 208 is fixedly installed on one side of the inner wall of the first set of mounting grooves 207. A spring 209 is fixedly installed on one side of the inner wall of the first set of mounting grooves 207. A metal block 210 is fixedly installed on one side of the outer wall of the first set of springs 209. The outer wall of the metal block 210 is movably inserted into the inner wall of the first set of mounting grooves 207. The outer wall of the metal block 210 is movably inserted into the inner wall of the first set of positioning holes 202.

[0033] The drive mechanism 3 includes a protective cover 301. The tops of the eight protective covers 301 are fixedly connected to the bottom of the base 101. Two shaft holes 302 are opened on one side of the outer wall of the protective cover 301. A set of shaft holes 303 is opened on the outer wall of the protective cover 301. A motor 304 is fixedly installed on one side of the outer wall of the protective cover 301. A worm gear 305 is fixedly installed on the output end of the motor 304. The inner surface of the set of shaft holes 303 is movably inserted into the outer surface of the worm gear 305. Two sliding grooves 306 are opened on the inner surface of the protective cover 301. A slider 307 is movably embedded in the inner surface of each of the two sliding grooves 306. A rack 308 is fixedly installed on one side of the outer wall of each of the two sliders 307. The outer walls of a set of sleeves 203 are fixedly connected to the outer walls of the four racks 308. A rotating shaft 309 is movably inserted into the inner wall of each of the two shaft holes 302. A half gear 310 is fixedly sleeved on the outer wall of each of the two rotating shafts 309. A transmission gear 311 is fixedly sleeved on the outer wall of each of the two rotating shafts 309, and the outer walls of the two transmission gears 311 mesh with each other. A worm gear 312 is fixedly sleeved on the outer wall of one of the two rotating shafts 309, and the outer wall of the worm gear 312 meshes with the inner wall of the worm 305.

[0034] In this embodiment, after the fixed pile 201 is inserted and fixed on the seabed, the height of the base 101 is also fixed. When the user needs to raise or lower the platform, the motor 304 can be started first, which will drive the two half gears 310 to rotate synchronously. Since the tooth marks on the surfaces of the two half gears 310 are different, they will mesh with the two racks 308 in sequence. When the left half gear 310 meshes with the left rack 308, the two electromagnets 208 inside the left sleeve 203 are energized and generate magnetic force. The magnetic force generated by the electromagnets 208 will attract the metal clip 210, causing the metal clip 210 to be pulled out from the positioning hole 202 and retracted into the mounting groove 207. During this process, the spring 209 is squeezed to facilitate the corresponding sleeve 203 to be in place on the fixed pile 201. 01. Surface slides freely. At this time, rack 308 will descend under the action of half gear 310, and drive slider 307 on one side of the outer wall to slide inside groove 306. Slider 307 and groove 306 cooperate to effectively prevent rack 308 from deviating in the forward direction. At this time, rack 308 drives sleeve 203 on one side of the outer wall to descend on the surface of fixed post 201. Since the position of fixed ring 206 remains unchanged, the descending sleeve 203 squeezes the lower spring 205. When sleeve 203 drives internal metal block 210 to the lower positioning hole 202, the corresponding electromagnet 208 is de-energized and closed. After the metal block 210 loses its magnetic attraction, it will be pushed into the positioning hole 202 by the extended spring 209. Electric telescopic rod 1 05. The system starts operating. At this time, the electric telescopic rod 105 retracts, causing the metal locking block 106 to be pulled out from the positioning holes 202, releasing the metal locking block 106 from the fixing post 201. Simultaneously, the left half-gear 310 separates from the left rack 308, and the right half-gear 310 begins to mesh with the right rack 308. The two electromagnets 208 inside the right sleeve 203 are also energized, attracting the metal locking block 210 to be pulled out from the positioning holes 202, facilitating the sliding of the right sleeve 203. The right rack 308 is then driven to descend. Since the base 101 is only fixed by the two metal locking blocks 210 on the left side, when the rack 308 descends, it will cause the protective cover 301 and its top base 101 to descend together. Spring 205, compressed by the left sleeve 203, returns to its original position, pushing the fixing ring 206 downwards and assisting the top base 101 in descending, thus completing the platform's descent. When the two metal blocks 210 in the right sleeve 203 reach the corresponding positioning holes 202, the two electromagnets 208 are de-energized, causing the extended spring 209 to push the metal blocks 210 into the positioning holes 202. At this time, a set of electric telescopic rods 105 extend, pushing metal blocks 106 into the corresponding set of positioning holes 202, fixing the position of the base 101. As the motor 304 continues to start, the left and right racks 308 descend alternately, driving the base 101 downwards. When the top of the rack 308 engages with the half gear 310, preventing further descent, ...All electromagnets 208 activate simultaneously, causing all metal latches 210 to be pulled out. At this point, motor 304 reverses direction, pulling the two racks 308 back to their original positions. If the user needs to raise the base 101, this can be easily achieved by adjusting the rotation direction of motor 304. This device uses latches to secure the base 101, avoiding the loosening or misalignment problems that can occur with a single gear and rack mechanism. This ensures the stability and reliability of the lifting platform and reduces the risk of accidents caused by swaying or tilting.

[0035] Example 2: According to Figure 1 and Figures 6-8 As shown, the drive mechanism 3 includes a protective cover 301. The tops of the eight protective covers 301 are fixedly connected to the bottom of the base 101. Two shaft holes 302 are opened on one side of the outer wall of the protective cover 301. A set of shaft holes 303 is opened on the outer wall of the protective cover 301. A motor 304 is fixedly installed on one side of the outer wall of the protective cover 301. A worm gear 305 is fixedly installed on the output end of the motor 304. The inner surface of the set of shaft holes 303 is movably inserted into the outer surface of the worm gear 305. Two sliding grooves 306 are opened on the inner surface of the protective cover 301. A slider 307 is movably embedded in the inner surface of each of the two sliding grooves 306. A rack 308 is fixedly installed on one side of the outer wall of each of the two sliders 307. The outer walls of a set of sleeves 203 are fixedly connected to the outer walls of the four racks 308. A rotating shaft 309 is movably inserted into the inner wall of each of the two shaft holes 302. A half gear 310 is fixedly sleeved on the outer wall of each of the two rotating shafts 309. A transmission gear 311 is fixedly sleeved on the outer wall of each of the two rotating shafts 309, and the outer walls of the two transmission gears 311 mesh with each other. A worm gear 312 is fixedly sleeved on the outer wall of one of the two rotating shafts 309, and the outer wall of the worm gear 312 meshes with the inner wall of the worm 305.

[0036] In this embodiment, after the motor 304 starts, it drives the worm gear 305 to rotate inside the protective cover 301. At this time, the worm wheel 312, which is meshed with the worm gear 305, is also driven to rotate. The mechanism composed of the two can withstand large radial and axial loads, meeting the heavy load requirements in offshore pile top construction. It also has a self-locking characteristic, ensuring that the lifting platform can maintain a stable load position during vertical transportation or positioning, even without external force. This effectively prevents the load from slipping due to unexpected situations such as wind and waves, greatly improving the safety and reliability of the operation. At this time, the worm wheel 312 causes the internal rotating shaft 309 to rotate inside the shaft hole 302. The transmission gear 311 fixedly sleeved on the outer wall of the rotating shaft 309 rotates synchronously and drives another transmission gear 311 meshing with it and the rotating shaft 309 to rotate in the opposite direction. At this time, the two relatively rotating rotating shafts 309 drive the two half gears 310 to rotate, driving the movement of other structures.

[0037] Example 3: According to Figures 1-3 As shown, the main body 1 includes a base 101. The bottom of the base 101 is fixedly connected to the top of four sets of sliding rods 204. Four mounting holes 102 are provided on the top of the base 101. A guardrail 103 is fixedly installed on the top of the base 101. A set of movable grooves 104 are provided on the inner surface of each of the four mounting holes 102. An electric telescopic rod 105 is fixedly installed on one side of the inner wall of each of the four movable grooves 104. A metal clip 106 is fixedly installed on the telescopic end of each of the four electric telescopic rods 105. The outer walls of the four metal clips 106 are movably inserted into the inner surface of each movable groove 104. A set of positioning holes 202 are located on the inner wall of the base 101. A set of support legs 107 are fixedly installed on the bottom of the base 101. A buoyancy seat 108 is fixedly installed between the bottoms of the support legs 107. A set of propellers 109 are fixedly installed on the bottom of the buoyancy seat 108. A set of electric hoists 110 are fixedly installed on the bottom of the base 101. A fixing anchor 111 is wound around the outer wall of the electric hoist 110. An electric valve 112 is fixedly connected to the top of the buoyancy seat 108. A water pump 113 is fixedly installed on the bottom of the inner wall of the buoyancy seat 108. A water pipe 114 is fixedly connected to the output end of the water pump 113, and the outer wall of the water pipe 114 is fixedly inserted into the inside of the buoyancy seat 108.

[0038] In this embodiment, the guardrail 103 can prevent workers and equipment from accidentally falling. When the platform is transported on the sea surface, the buoyancy seat 108 is filled with air, thus providing sufficient buoyancy for the platform. When the platform is too far from the seabed to be fixed by the anchor pile 201, the electric hoist 110 can be started after the platform arrives at the work site to lower the anchor 111 and fix the platform with the anchor 111. This allows for fine-tuning according to different sea conditions and construction needs, improving the platform's adaptability and flexibility. Subsequently, the water pump 113 is started, and some seawater is drawn into the buoyancy seat 108 through the water pipe 114, so that... With most of the buoyancy seat 108 below sea level, the stability of the lifting platform is improved. A stable lifting platform can reduce the risk of accidents caused by swaying or tilting, such as personnel falling or equipment damage, thereby ensuring the safety of construction personnel and the integrity of equipment. At this time, the electric valve 112 is activated to facilitate the discharge of air from the buoyancy seat 108, preventing excessive internal pressure from damaging the device. At the same time, a set of propellers 109 at the bottom of the buoyancy seat 108 can generate thrust in the opposite direction when it is pushed by waves, thereby more accurately controlling the position of the platform and ensuring that the platform always maintains the correct position during the construction of the offshore pile top.

[0039] The working principle of the entire mechanism is as follows: After the motor 304 starts, its power is transmitted to the worm 305, driving it to rotate inside the protective cover 301. The worm 305 and the worm wheel 312 are precisely meshed, causing the worm wheel 312 to rotate as well. Even if the motor 304 stops working and there is no external driving force, the mechanism can ensure that the load position remains stable. As the worm wheel 312 rotates, the internal shaft 309 also begins to rotate in the shaft hole 302. The transmission gear 311 fixedly sleeved on the outer wall of the shaft 309 forms a meshing connection with another transmission gear 311, so the two will rotate synchronously but in opposite directions. This design allows the two relatively rotating shafts 309 to drive the two half gears 310 respectively. The rotation of the fixed pile 201, in turn, drives the movement of other structures on the lifting platform. Once the fixed pile 201 is firmly inserted into the seabed, its height is determined, providing a stable reference for the platform's lifting operation. If the platform height needs to be adjusted, the user can start the motor 304, which then drives the two half-gears 310 to rotate synchronously. These two half-gears 310 can precisely mesh with the racks 308 on both sides in sequence. When the left half-gear 310 meshes with the left rack 308 and begins to drive its descent, the electromagnet 208 in the left sleeve 203 is energized, generating magnetic force to attract the metal clip 210 from the positioning hole 202 and retract it into the mounting slot 207. During this process, the spring 209 is compressed. This design allows the sleeve 203 to move on the fixed pile 201. Simultaneously, the descent of the rack 308 causes its outer slider 307 to slide smoothly within the groove 306, effectively preventing deviation and ensuring that the rack 308 moves along the predetermined trajectory. As the rack 308 descends, it drives the sleeve 203 to slide down along the fixed post 201, while simultaneously compressing the lower spring 205. When the sleeve 203 and its internal metal block 210 reach the next positioning hole 202, the electromagnet 208 is de-energized, and the metal block 210, pushed by the spring 209, inserts into the positioning hole 202, achieving fixation. At this time, the electric telescopic rod 105 begins to retract, causing the metal block 106 to be pulled out of the positioning hole 202, releasing the fixation of the fixed post 201. At the same time, the left half gear 310 and the left rack 308... Upon separation, the right half-gear 310 begins to mesh with the right rack 308, driving it to descend. Since the base 101 is currently only secured by the left-side metal clip 210, when the right rack 308 descends, it causes the protective cover 301 and its top base 101 to descend together. Simultaneously, the compressed left-side spring 205 resets, pushing the fixing ring 206 downwards, further assisting in the smooth descent of the base 101. When the metal clip 210 in the right-side sleeve 203 is also inserted into the corresponding positioning hole 202, the electromagnet 208 is de-energized, and the metal clip 210 is fixed in place. At this point, a set of electric telescopic rods 105 extends, pushing the metal clip 106 into the corresponding set of positioning holes 202, thereby fixing the position of the base 101.As the motor 304 continues to run, the left and right racks 308 descend alternately, driving the base 101 to gradually descend. When the top of the rack 308 engages with the half gear 310 to its limit and can no longer descend, all electromagnets 208 are activated simultaneously, pulling out all metal clips 210. At this time, the motor 304 reverses, easily pulling the two racks 308 back to their initial positions. If the user needs to raise the height of the base 101, simply adjust the rotation direction of the motor 304. The guardrail 103 effectively prevents workers and equipment from accidentally falling during operation, providing the first line of safety for construction. When the lifting platform is transported on the sea, the buoyancy seat 108 is filled with air, providing sufficient buoyancy for the platform and ensuring its stable navigation on the water. When the depth of the water area where the platform needs to operate exceeds the fixed range of the fixed pile 201, once the platform arrives at the predetermined work location, the electric hoist 11... The system will then be activated, deploying anchor 111 to the seabed to secure the platform to the surface. Immediately afterward, water pump 113 starts, drawing seawater into the buoyancy seat 108 via water pipe 114. This submerges most of the buoyancy seat 108 below sea level, significantly improving the overall stability of the lifting platform and greatly reducing the risk of accidents caused by swaying or tilting. Simultaneously, the timely activation of electric valve 112 opens a channel for air release from the buoyancy seat 108, effectively preventing damage due to excessive internal pressure. A set of propellers 109 at the bottom of the buoyancy seat 108, propelled by waves, quickly generates thrust in the opposite direction, helping the platform precisely adjust its position. This design ensures that the platform maintains the correct operating posture during offshore pile construction, providing strong technical support for efficient and safe construction.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting platform for offshore pile top construction, comprising a main structure (1), characterized in that: The inner wall of the main body (1) is movably fitted with four lifting mechanisms (2), and the outer walls of the four lifting mechanisms (2) are each fixedly fitted with two drive mechanisms (3). The lifting mechanism (2) includes a fixed post (201). The outer wall of the fixed post (201) has multiple sets of positioning holes (202). A set of retaining sleeves (203) is movably fitted onto the outer wall of the fixed post (201). Two sliding rods (204) are movably inserted into the inner wall of each retaining sleeve (203). A spring (205) is wound around the outer wall of each sliding rod (204), and the top of each spring (205) is fixedly connected to the bottom of each retaining sleeve (203). A fixing ring (206) is fixedly installed between the bottom of the fixed ring (204), and the inner surface of the fixing ring (206) is movably inserted into the outer surface of the fixing post (201). A set of springs (205) is fixedly connected between the bottom of the fixed ring (206). Two mounting grooves (207) are opened on the inner surface of each set of the sleeves (203). An electromagnet (208) is fixedly installed on one side of the inner wall of each set of the mounting grooves (207). A spring (209) is fixedly installed on one side of the inner wall of each set of the mounting grooves (207). A metal clip 2 (210) is fixedly installed on one side of the outer wall of a set of springs 2 (209), and the outer wall of the set of metal clips 2 (210) is movably inserted into the inner wall of a set of mounting grooves (207), while the outer wall of the set of metal clips 2 (210) is movably inserted into the inner wall of a set of positioning holes (202). The main body (1) includes a base (101), the bottom of which is fixedly connected to the top of four sets of slide bars (204); The drive mechanism (3) includes a protective cover (301), the tops of the eight protective covers (301) are fixedly connected to the bottom of the base (101), and two shaft holes (302) are opened on one side of the outer wall of the protective cover (301), and a set of shaft holes (303) are opened on the outer wall of the protective cover (301). A motor (304) is fixedly installed on one side of the outer wall of the protective cover (301). A worm gear (305) is fixedly installed at the output end of the motor (304), and the inner surface of a set of shaft holes (303) is movably inserted into the outer surface of the worm gear (305). The inner surface of the protective cover (301) has two grooves (306), and the inner surface of the two grooves (306) is movably fitted with sliders (307). A rack (308) is fixedly installed on one side of the outer wall of the two sliders (307). The outer walls of a set of the ferrules (203) are fixedly connected to the outer walls of the four racks (308), and the inner walls of the two shaft holes (302) are movably inserted with shafts (309), and the outer walls of the two shafts (309) are fixedly fitted with half gears (310). The outer walls of both shafts (309) are fixedly fitted with transmission gears (311), and the outer walls of the two transmission gears (311) mesh with each other. The outer wall of one of the shafts (309) is fixedly fitted with a worm gear (312), and the outer wall of the worm gear (312) meshes with the inner wall of the worm (305).

2. The lifting platform for offshore pile top construction according to claim 1, characterized in that: The base (101) has four mounting holes (102) on its top. A guardrail (103) is fixedly installed on the top of the base (101). A set of movable grooves (104) is opened on the inner surface of each of the four mounting holes (102). An electric telescopic rod (105) is fixedly installed on one side of the inner wall of each of the four sets of movable grooves (104).

3. A lifting platform for offshore pile top construction according to claim 2, characterized in that: The telescopic ends of the four sets of electric telescopic rods (105) are all fixedly installed with metal clips (106), and the outer walls of the four sets of metal clips (106) are movably inserted into the inner wall of a set of movable slots (104), and the outer walls of the four sets of metal clips (106) are movably inserted into the inner wall of a set of positioning holes (202). A set of support legs (107) is fixedly installed at the bottom of the base (101), and a buoyancy seat (108) is fixedly installed between the bottoms of the set of support legs (107). A set of propellers (109) is fixedly installed at the bottom of the buoyancy seat (108).

4. A lifting platform for offshore pile top construction according to claim 3, characterized in that: A set of electric hoists (110) is fixedly installed at the bottom of the base (101). The outer wall of the set of electric hoists (110) is wrapped with a fixed anchor (111). An electric valve (112) is fixedly connected to the top of the buoyancy seat (108). A water pump (113) is fixedly installed at the bottom of the inner wall of the buoyancy seat (108). The output end of the water pump (113) is fixedly connected to a water pipe (114), and the outer wall of the water pipe (114) is fixedly inserted into the inside of the buoyancy seat (108).

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