Suspended depth-keeping suction anchor vertical tension mechanism

Abstract

The application discloses a suspension depth-keeping suction anchor vertical tension mechanism and belongs to the technical field of ocean engineering. The vertical winch is arranged on the top surface of the central platform. The vertical winch is internally wound with a central mooring cable. The central mooring cable is arranged through the inside of the net cage. The bottom end of the central mooring cable is connected with a suction anchor assembly. The top end of the suction anchor assembly is slidably sleeved with a protection assembly. The outer wall of the suction anchor assembly is slidably sleeved with a sealing assembly. The suction anchor assembly, the protection assembly and the sealing assembly are cooperatively designed. The anchor cylinder simultaneously has two working states. In the first state, the sealing assembly is attached to the sea bottom to realize the closure of the anchor cylinder and the sea bottom. The lifting lugs and the water guide valve are extended outward to facilitate operation and ensure the operation efficiency. In the second state, after the anchor cylinder is inserted into the inside of the sea bottom, the lifting lugs and the water guide valve are recycled into the inside of the protection assembly, the exposure corrosion risk is reduced, and the safety protection and the stability of the device are improved.

Description

Technical Field

[0001] This application relates to the field of marine engineering technology, and more specifically, to a vertical tension mechanism for a suspended, fixed-depth suction anchor. Background Technology

[0002] Suction anchors can provide mooring force for vessels, net cages, and other structures, and can also serve as the foundation structure for offshore platforms. Their core function is to provide vertical pull-out resistance through the stable connection between the suction anchor and the seabed soil. Combined with the tension adjustment of the vertical winch and the central mooring cable, this achieves precise levitation and depth control, as well as structural stability for floating facilities. In aquaculture, this mechanism can withstand the impact of wind, waves, and currents, maintaining net cages at suitable seawater depths (avoiding high surface temperatures or low oxygen levels at the bottom), providing a stable growth environment for farmed organisms. Simultaneously, its vertical tension control capability balances the weight and buoyancy of the net cages, preventing excessive tilting or vertical movement, ensuring the safety and efficiency of aquaculture operations. The performance of this mechanism directly determines the floating facility's resistance to wind and waves, depth accuracy, and long-term operational reliability, making it a key technological carrier for lightweight offshore mooring systems.

[0003] In existing technology, the suction anchor body is connected to the underwater pump unit through the water inlet valve at the top. A crane is used to lift the suction anchor body by the lifting lug at the top, and the suction anchor is lowered to the seabed so that the bottom opening of the suction anchor fits against the top surface of the seabed. Then, the pump unit is started to draw seawater from the chamber to create negative pressure, causing the anchor body to sink and drill into the seabed soil layer under the negative pressure, thus completing the anchoring. When the suction anchor is taken out, water is injected through the water inlet valve and the underwater pump unit to push the suction anchor out of the seabed soil layer. The operation is simple.

[0004] However, existing suction anchors still have the following shortcomings:

[0005] 1. After the suction anchor is anchored to the seabed, the inlet valve is prone to getting clogged with mud and sand due to its proximity to the seabed. Furthermore, due to long-term exposure to the seabed, the external structure of the inlet valve and the connection between the lifting lug and the suction anchor body are susceptible to seawater corrosion and damage, which may affect the subsequent removal and separation of the suction anchor from the seabed soil.

[0006] 2. When the bottom opening of the suction anchor is attached to the top surface of the seabed, the rigid structure of the bottom surface cannot adapt to the uneven seabed topography, making it difficult to ensure that the bottom surface of the suction anchor is sealed. Negative pressure leakage is likely to occur, making it difficult to insert the suction anchor body and reducing the efficiency and effectiveness of inserting the suction anchor body into the seabed.

[0007] In view of this, we propose a suspended fixed-depth suction anchor vertical tension mechanism with high protection and sealing performance. Summary of the Invention

[0008] 1. Technical problems to be solved

[0009] The purpose of this application is to provide a vertical tension mechanism for a suspended, fixed-depth suction anchor, which solves the technical problems mentioned in the background art.

[0010] 2. Technical Solution

[0011] The technical solution of this application provides a suspended fixed-depth suction anchor vertical tension mechanism, including a vertical winch set on the top surface of the central platform. A central mooring cable is wound inside the vertical winch and runs through the inside of the cage. A suction anchor assembly is connected to the bottom end of the central mooring cable. A protective assembly is slidably sleeved on the top end of the suction anchor assembly, and a sealing assembly is slidably sleeved on the outer wall of the suction anchor assembly.

[0012] The suction anchor assembly includes a fixed post that runs through the interior of the protective assembly. A rope-connecting post is fixed to the top of the fixed post, and a central mooring cable is connected to the top of the rope-connecting post. A deviation measuring component is installed on the top of the fixed post and is sleeved on the outer wall of the central mooring cable. An anchor tube with a through-hole structure is connected to the bottom of the fixed post. The top of the anchor tube is inserted into the interior of the protective assembly. A top cover is connected to the top of the anchor tube. A groove is opened on the top surface of the top cover. The fixed post is fixed inside the groove. Two lifting lugs are fixed to the top surface of the top cover and are inserted through the interior of the protective assembly. Two water-guiding valves are connected through the top surface of the top cover. The bottom of the water-guiding valves is connected through the interior of the anchor tube. The water-guiding valves are used by an external water pump to pump out seawater from the interior of the anchor tube so that the anchor tube can descend and insert into the seabed. The anchor tube can be set to descend in two states.

[0013] In the first state, the bottom surface of the anchor tube is attached to the top surface of the seabed, the sealing component is attached to the top surface of the seabed so that the anchor tube is attached to and sealed to the top surface of the seabed, the lifting lug extends outward and is set on the top of the sealing component, and the top of the water guide valve extends outward and is set on the top of the sealing component.

[0014] In the second state, the anchor tube is inserted into the seabed, the protective component is attached to the top surface of the sealing component, and the top cover slides downward inside the protective component to allow the lifting lug and water guide valve to descend and be retracted into the protective component.

[0015] Furthermore, the protective assembly includes a protective cover fitted onto the outer wall of the anchor cylinder. The inner wall of the protective cover has a stepped structure that is wider at the top and narrower at the bottom. The top cover is slidably connected to the inside of the protective cover. The side wall of the protective cover has multiple first slots. Two first protective cylinders are provided through the top surface of the protective cover. The side wall of the first protective cylinder is rotatably connected to a cylinder cover by a torsion spring. The cylinder cover fits and seals the top surface of the first protective cylinder. The top of the water guide valve is inserted into the inside of the first protective cylinder.

[0016] Furthermore, the protective assembly also includes an air valve that penetrates and connects to the top surface of the protective cover. The bottom end of the air valve is elastically inserted into the inner end face of the protective cover. A second protective cylinder is provided on the top surface of the protective cover. The top end of the air valve is inserted into the second protective cylinder. The top cover slides against the inner wall of the protective cover. A sealing ring is embedded in the inner wall of the protective cover. The sealing ring is against the outer wall of the anchor cylinder. An air cavity structure is formed between the top surface of the top cover and the inside of the protective cover. A pressure sensor is installed through the inside of the protective cover. The bottom end of the pressure sensor is located inside the air cavity structure. The air valve is used to inflate the inside of the air cavity structure through an external air pump.

[0017] Furthermore, the bottom end of the top cover is a cylindrical structure, which is threaded to the inner wall of the top end of the anchor cylinder, and the bottom end of the top cover is flush with the inner wall of the anchor cylinder.

[0018] Furthermore, the top cover has an air guide channel inside, one end of which is connected to the inner wall of the groove, and the other end of which is connected to the outer wall of the cylindrical structure at the bottom of the top cover. The anchor cylinder has an inner cavity inside, and the other end of the air guide channel is connected to the inner cavity. Both the air guide channel and the inner cavity have multiple sets of openings along the circumference of the top cover.

[0019] Furthermore, the sealing assembly includes a collar that slides onto the outer wall of the anchor cylinder. An air bladder with an annular structure is embedded in the bottom surface of the collar. A docking ring is fixed on the top surface of the collar. The inner wall of the bottom surface of the protective cover has a stepped structure. In the second state, the docking ring is inserted into the stepped structure of the bottom surface of the protective cover. A second slot is provided on the side wall of the docking ring. Multiple docking slots are provided through the top surface of the second slot. Multiple locking blocks are fixed on the inner wall of the stepped structure of the bottom surface of the protective cover. The locking blocks are inserted into the second slot through the docking slots. The locking blocks are locked into the second slot by rotating the protective cover.

[0020] Furthermore, the suction anchor assembly also includes a flipping component. One side of the flipping component is embedded in the outer wall of the anchor tube. The outer wall of the anchor tube has multiple storage grooves. One side of the flipping component is fitted inside the storage groove. Multiple sets of flipping components are arranged along the circumference of the anchor tube. The multiple sets of flipping components are pushed and flipped outward to the outside of the anchor tube by a collar.

[0021] Furthermore, the flipping resistance component includes a first resistance plate fitted inside the storage slot, a second resistance plate integrally bent on the top surface of the first resistance plate, sliding columns fixed on both sides of the first resistance plate, an inner slot provided on the inner wall of the storage slot, two sliding grooves provided on the inner wall of the inner slot, the sliding columns slidably connected inside the sliding grooves, and the first resistance plate being pushed by a collar to have two states.

[0022] In the first state, the first resistance plate is fitted inside the receiving groove, the outer wall of the first resistance plate is flush with the outer wall of the anchor cylinder, and the second resistance plate extends out of the receiving groove.

[0023] In the second state, the second resistance plate is fitted to the outside of the receiving groove, and the outer wall of the second resistance plate is flush with the outer wall of the anchor cylinder. The first resistance plate extends out of the receiving groove, and the outer wall of the second resistance plate is fitted to the inner wall of the collar.

[0024] Furthermore, the deviation measuring component includes a fixed cylinder sleeved and fixed to the outer wall of the center mooring cable. A connecting plate is fixed to the side wall of the fixed cylinder. Two connecting plates are arranged in a mirror image about the vertical centerline of the fixed cylinder. A guide rod is inserted into the inside of the connecting plate. A pressure sensor is connected to the bottom end of the guide rod. A spring is sleeved on the outer wall of the guide rod. A sliding support is rotatably sleeved on the outer wall of the pressure sensor. Two slide rails are fixed on the top surface of the fixed column. The sliding support is slidably inserted into the slide rails.

[0025] Furthermore, the inner wall of the bottom surface of the anchor tube has a right-angled structure, and an inner slice is fixed to the inner wall of the bottom surface of the anchor tube. Multiple inner slices are arranged along the circumference of the anchor tube.

[0026] 3. Beneficial effects

[0027] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0028] 1. Through the coordinated design of the suction anchor assembly, protective assembly, and sealing assembly, the anchor tube has two working states: In the first state, the sealing assembly fits against the seabed to seal the anchor tube from the seabed, and the lifting lug and water guide valve extend outward for easy operation, ensuring operational efficiency; In the second state, after the anchor tube is inserted into the seabed, the lifting lug and water guide valve are retracted into the protective assembly, reducing the risk of exposure corrosion and improving the safety and stability of the device.

[0029] 2. The center mooring cable is connected to the suction anchor assembly, and the tension is adjusted in conjunction with the vertical winch. The cable deflection is monitored by the deflection measuring component, which improves the overall anchoring stability and depth control accuracy.

[0030] 3. The air valve can be connected to an external air pump to inflate the air chamber formed by the protective cover and the top cover. The air pressure sensor monitors the air chamber pressure in real time and can remotely determine the sealing status of the protective components and whether the anchor cylinder floats (early warning when the pressure changes abnormally), which improves the anchoring efficiency and status monitoring capability.

[0031] 4. The cylindrical structure at the bottom of the top cover is threaded to the inner wall of the top of the anchor tube, and the inner walls of the two are flush, eliminating the steps and gaps at the connection point, ensuring that the seabed soil can smoothly enter the interior of the anchor tube, enhancing the negative pressure adsorption force, making the anchor tube easier to penetrate into the seabed, and improving the anchoring stability.

[0032] Furthermore, the top cover and the anchor tube are connected by a detachable threaded connection. When the anchor tube fails to be pulled out from the seabed or when the cage needs to be quickly transferred, the top cover can be rotated to separate from the anchor tube, leaving the anchor tube temporarily on the seabed, thereby improving the separation efficiency of the device from the seabed. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall connection structure between the suspended fixed-depth suction anchor vertical tension mechanism of the present invention and the cage.

[0034] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0035] Figure 3 This is a schematic diagram of the suction anchor assembly structure of the present invention.

[0036] Figure 4 This is a schematic diagram of the connection structure between the suction anchor assembly and the protective cover of the present invention.

[0037] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the diagram.

[0038] Figure 6 This is a structural schematic diagram of the top state of the water guide valve and the extended protective lug assembly of the present invention.

[0039] Figure 7 This is a schematic diagram of the internal structure of the protective component of the present invention.

[0040] Figure 8 This is a schematic diagram of the deviation measuring component of the present invention.

[0041] Figure 9 This is a schematic diagram of the sealing assembly structure of the present invention.

[0042] Figure 10 This is a schematic diagram of the suction anchor assembly of the present invention fully inserted into the seabed.

[0043] Figure 11 This is a cross-sectional view of the suction anchor assembly of the present invention fully inserted into the seabed.

[0044] Figure 12 for Figure 11 A magnified cross-sectional view of section B in the diagram.

[0045] Explanation of the labels in the diagram: 100, Vertical winch; 200, Center mooring cable; 300, Protective assembly; 310, Protective cover; 311, First slot; 312, Sealing ring; 313, Locking block; 320, First protective cylinder; 321, Cylinder cover; 330, Second protective cylinder; 340, Air valve; 350, Pressure sensor; 400, Suction anchor assembly; 410, Anchor cylinder; 411, Top cover; 4111, Groove; 4112, Air channel; 412, Storage slot; 4121, Inner slot; 4122, Slide groove; 413, Inner cut. 414. Plate; 420. Inner cavity; 421. Tilting resistance component; 422. First resistance plate; 423. Second resistance plate; 424. Sliding column; 430. Lifting lug; 440. Water guide valve; 450. Fixed column; 451. Rope connecting column; 460. Deviation measuring component; 461. Fixed cylinder; 462. Connecting plate; 463. Guide rod; 464. Spring; 465. Pressure sensor; 466. Sliding support frame; 467. Slide rail; 500. Sealing assembly; 510. Collar; 520. Airbag; 530. Docking ring; 531. Second slot; 532. Docking groove. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] Reference Figures 1-12 This application provides a suspended fixed-depth suction anchor vertical tension mechanism, including a vertical winch 100 set on the top surface of a central platform. A central mooring cable 200 is wound inside the vertical winch 100 and passes through the inside of the cage. A suction anchor assembly 400 is connected to the bottom end of the central mooring cable 200. A protective assembly 300 is slidably sleeved on the top end of the suction anchor assembly 400, and a sealing assembly 500 is slidably sleeved on the outer wall of the suction anchor assembly 400.

[0050] The suction anchor assembly 400 includes a fixed post 450 that penetrates and connects to the interior of the protective assembly 300. A rope receiving post 451 is fixed to the top surface of the fixed post 450, and a center mooring cable 200 is connected to the top of the rope receiving post 451. A deviation measuring component 460 is provided on the top surface of the fixed post 450 and is sleeved on the outer wall of the center mooring cable 200. An anchor cylinder 410 with a through-hole structure is connected to the bottom end of the fixed post 450. The top of the anchor cylinder 410 is inserted into the interior of the protective assembly 300, and a top cover 411 is connected to the top surface of the anchor cylinder 410. The top surface of the top cover 411 has a groove 4111, and the fixing column 450 is fixed inside the groove 4111. Two lifting lugs 430 are fixed on the top surface of the top cover 411. The two lifting lugs 430 are inserted through the protective component 300. Two water guide valves 440 are connected through the top surface of the top cover 411. The bottom end of the water guide valve 440 is connected through the inside of the anchor tube 410. The water guide valve 440 is used to pump out the seawater inside the anchor tube 410 through an external water pump so that the anchor tube 410 can be lowered and inserted into the seabed. The anchor tube 410 can be lowered in two states.

[0051] In the first state, the bottom surface of the anchor tube 410 is attached to the top surface of the seabed, and the sealing component 500 is attached to the top surface of the seabed so that the anchor tube 410 is attached to and sealed to the top surface of the seabed. The lifting lug 430 extends outward and is set on the top of the sealing component 500, and the top of the water guide valve 440 extends outward and is set on the top of the sealing component 500.

[0052] In the second state, the anchor tube 410 is inserted into the seabed, the protective component 300 is attached to the top surface of the sealing component 500, and the top cover 411 slides downward inside the protective component 300 so that the lifting lug 430 and the water guide valve 440 are lowered and retracted into the protective component 300.

[0053] Through the coordinated design of the suction anchor assembly 400, the protective assembly 300, and the sealing assembly 500, the anchor tube 410 has two working states: In the first state, the sealing assembly 500 fits against the seabed to seal the anchor tube 410 from the seabed, and the lifting lug 430 and the water guide valve 440 extend outward for easy operation; In the second state, after the anchor tube 410 is inserted into the seabed, the lifting lug 430 and the water guide valve 440 are retracted into the protective assembly 300, reducing the risk of exposure corrosion and improving the safety and stability of the device.

[0054] The center mooring cable 200 is connected to the suction anchor assembly 400, and the tension is adjusted in conjunction with the vertical winch 100. The cable deflection is monitored by the deflection measuring component 460, which improves the overall anchoring stability and depth control accuracy.

[0055] In this embodiment, the protective component 300 includes a protective cover 310 sleeved on the outer wall of the anchor cylinder 410. The inner wall of the protective cover 310 has a stepped structure that is wider at the top and narrower at the bottom. The top cover 411 is slidably connected to the inside of the protective cover 310. The side wall of the protective cover 310 is provided with a plurality of first slots 311. Two first protective cylinders 320 are provided through the top surface of the protective cover 310. The side wall of the first protective cylinder 320 is rotatably connected to a cylinder cover 321 by a torsion spring. The cylinder cover 321 fits and seals the top surface of the first protective cylinder 320. The top end of the water guide valve 440 is inserted into the inside of the first protective cylinder 320.

[0056] The protective cover 310 adopts a stepped structure that is wider at the top and narrower at the bottom, with the top cover 411 sliding inside it. The first protective cylinder 320, in conjunction with the cylinder cover 321 that rotates with a torsion spring, automatically closes its top surface when the water guide valve 440 retracts. After the anchor cylinder 410 is inserted into the seabed, this structure houses the water guide valve 440 inside the first protective cylinder 320, with the cylinder cover 321 providing protection and preventing seawater and sediment from entering, thus protecting the integrity of the water guide valve 440 and ensuring smooth subsequent filling and draining operations.

[0057] In this embodiment, the protective component 300 further includes an air valve 340 that penetrates and connects to the top surface of the protective cover 310. The bottom end of the air valve 340 is elastically inserted into the inner end face of the protective cover 310. A second protective cylinder 330 is provided on the top surface of the protective cover 310. The top end of the air valve 340 is inserted into the inside of the second protective cylinder 330. The top cover 411 slides against the inner wall of the protective cover 310. A sealing ring 312 is embedded in the inner wall of the protective cover 310. The sealing ring 312 is attached to the outer wall of the anchor cylinder 410. An air cavity structure is formed between the top surface of the top cover 411 and the inside of the protective cover 310. A pressure sensor 350 is penetrated inside the protective cover 310. The bottom end of the pressure sensor 350 is located inside the air cavity structure. The air valve 340 is inflated inside the air cavity structure by an external air pump.

[0058] The air valve 340 can be connected to an external air pump to inflate the air chamber formed by the protective cover 310 and the top cover 411. The air pressure sensor 350 monitors the air chamber pressure in real time and can remotely determine the sealing status of the protective component 300 and whether the anchor cylinder 410 floats (early warning when the pressure changes abnormally), thus improving the anchoring efficiency and status monitoring capability.

[0059] In this embodiment, the bottom end of the top cover 411 is a cylindrical structure, and the cylindrical structure at the bottom end of the top cover 411 is threadedly connected to the inner wall of the top end of the anchor cylinder 410. The cylindrical structure at the bottom end of the top cover 411 is flush with the inner wall of the anchor cylinder 410.

[0060] The bottom cylindrical structure of the top cover 411 is threadedly connected to the inner wall of the top of the anchor tube 410, and the inner walls of the two are flush, eliminating the steps and gaps at the connection point, ensuring that the seabed soil can smoothly enter the interior of the anchor tube 410, enhancing the negative pressure adsorption force, making the anchor tube 410 easier to penetrate into the seabed, and improving the anchoring stability.

[0061] Furthermore, the top cover 411 and the anchor tube 410 adopt this detachable threaded connection method. When the anchor tube 410 fails to be pulled out from the seabed or when the net cage needs to be quickly transferred, the top cover 411 can be rotated to separate from the anchor tube 410, and the anchor tube 410 can be temporarily left on the seabed, thereby improving the separation efficiency of the device from the seabed.

[0062] In this embodiment, the top cover 411 has an air guide channel 4112 inside. One end of the air guide channel 4112 is connected to the inner wall of the groove 4111, and the other end of the air guide channel 4112 is connected to the outer wall of the cylindrical structure at the bottom of the top cover 411. The anchor cylinder 410 has an inner cavity 414 inside. The other end of the air guide channel 4112 is connected to the inner cavity 414. Both the air guide channel 4112 and the inner cavity 414 have multiple sets of air guide channels along the circumference of the top cover 411.

[0063] Multiple sets of air guiding channels 4112 are opened along the circumferential direction inside the top cover 411, which are connected to multiple sets of inner cavities 414 inside the anchor tube 410. Hot air enters the inner cavity 414 of the anchor tube 410 through the air guiding channels 4112, heating the seabed soil to reduce its shear strength and reduce the insertion resistance of the anchor tube 410. The hot air can enter the various areas of the anchor tube 410 evenly through multiple paths, heating the soil inside in all directions, significantly reducing the overall shear strength of the soil, further reducing the insertion resistance of the anchor tube 410, and improving the insertion efficiency.

[0064] In this embodiment, the sealing assembly 500 includes a collar 510 that is slidably sleeved on the outer wall of the anchor cylinder 410. An airbag 520 with an annular structure is embedded in the bottom surface of the collar 510. A docking ring 530 is fixed on the top surface of the collar 510. The inner wall of the bottom surface of the protective cover 310 has a stepped structure. The docking ring 530 is inserted into the stepped structure of the bottom surface of the protective cover 310 in the second state. A second slot 531 is opened on the side wall of the docking ring 530. A plurality of docking slots 532 are opened through the top surface of the second slot 531. A plurality of locking blocks 313 are fixed on the inner wall of the stepped structure of the bottom surface of the protective cover 310. The locking blocks 313 are inserted into the second slot 531 through the docking slots 532. The locking blocks 313 are rotated and locked into the second slot 531 by the protective cover 310.

[0065] The annular airbag 520 on the bottom surface of the collar 510 can adaptively fit the shape of the seabed to achieve a tight seal between the anchor cylinder 410 and the seabed, preventing negative pressure leakage. The second slot 531 of the docking ring 530 cooperates with the locking block 313 of the protective cover 310. The locking block 313 is inserted into the second slot 531 through the docking groove 532 to enhance the overall structural stability. Then, the locking block 313 can be rotated and locked into the second slot 531 to fix the protective cover 310 and the sealing component 500. When the top cover 411 is separated from the anchor cylinder 410, the sealing component 500 can also be separated from the anchor cylinder 410 along with the protective cover 310 for continued use and cost savings.

[0066] In this embodiment, the suction anchor assembly 400 further includes a flipping and blocking component 420. One side of the flipping and blocking component 420 is embedded in the outer wall of the anchor cylinder 410. The outer wall of the anchor cylinder 410 is provided with a plurality of storage grooves 412. One side of the flipping and blocking component 420 is fitted into the storage groove 412. Multiple sets of flipping and blocking components 420 are arranged along the circumference of the anchor cylinder 410. The multiple sets of flipping and blocking components 420 are pushed and flipped outward to the outside of the anchor cylinder 410 by the collar 510.

[0067] The overturning and resisting component 420 on the outer wall of the anchor tube 410 is overturned and extended outward under the push of the collar 510, and embedded in the seabed soil. By increasing the friction with the soil and the mechanical blocking effect, the pull-out resistance of the anchor tube 410 is significantly improved, preventing it from floating up unexpectedly and ensuring long-term reliable anchoring.

[0068] In this embodiment, the flipping resistance component 420 includes a first resistance plate 421 fitted inside the storage groove 412, a second resistance plate 422 integrally bent on the top surface of the first resistance plate 421, and sliding posts 423 fixed on both sides of the first resistance plate 421. An inner slot 4121 is provided on the inner wall of the storage groove 412, and two sliding grooves 4122 are provided on the inner wall of the inner slot 4121. The sliding posts 423 are slidably connected inside the sliding grooves 4122. The first resistance plate 421 is pushed by the collar 510 to have two states.

[0069] In the first state, the first resistance plate 421 is fitted inside the storage groove 412, the outer wall of the first resistance plate 421 is flush with the outer wall of the anchor cylinder 410, and the second resistance plate 422 extends out of the storage groove 412.

[0070] In the second state, the second resistance plate 422 is attached to the outside of the receiving groove 412, the outer wall of the second resistance plate 422 is flush with the outer wall of the anchor cylinder 410, the first resistance plate 421 extends out of the receiving groove 412, and the outer wall of the second resistance plate 422 is attached to the inner wall of the collar 510.

[0071] The overturning resistance component 420 achieves two state switching by sliding the sliding column 423 within the sliding groove 4122: In the first state, the first resistance plate 421 is housed within the groove, and the second resistance plate 422 extends outward to guide the movement of the collar 510; in the second state, the collar 510 pushes the second resistance plate 422 to be housed and positioned, keeping the first resistance plate 421 extended and embedded in the soil. This design avoids obstruction of insertion in the non-working state and ensures that the resistance plate is fully extended in the working state, maximizing the pull-out resistance and improving structural adaptability and anchoring effect.

[0072] In this embodiment, the deviation measuring component 460 includes a fixed cylinder 461 that is sleeved and fixed to the outer wall of the center mooring cable 200. A connecting plate 462 is fixed to the side wall of the fixed cylinder 461. Two connecting plates 462 are arranged in a mirror image about the vertical centerline of the fixed cylinder 461. A guide rod 463 is inserted into the connecting plate 462. A pressure sensor 465 is connected to the bottom end of the guide rod 463. A spring 464 is sleeved on the outer wall of the guide rod 463. A sliding support frame 466 is rotatably sleeved on the outer wall of the pressure sensor 465. Two slide rails 467 are fixed on the top surface of the fixed column 450. The sliding support frame 466 is slidably inserted into the slide rails 467.

[0073] The fixed cylinder 461 of the deflection measuring component 460 deflects with the cable, pushing the guide rod 463 through the connecting plate 462. The pressure sensor 465 detects pressure changes under the action of the sliding support frame 466 and the slide rail 467, enabling remote monitoring of the cable deflection angle. Based on this, the buoyancy of the cage is adjusted in a timely manner to ensure the connection angle between the cable and the suction anchor assembly 400, avoiding uneven tension and improving the accuracy of depth control.

[0074] In this embodiment, the inner wall of the bottom surface of the anchor cylinder 410 has a chamfered right angle structure, and an inner slice 413 is fixed on the inner wall of the bottom surface of the anchor cylinder 410. Multiple inner slices 413 are arranged along the circumference of the anchor cylinder 410. The chamfered right angle structure of the inner wall of the bottom surface of the anchor cylinder 410 guides the soil to enter. Multiple inner slices 413 cut the clumps of soil along the circumference to avoid blockage, making it easier for the soil to be sucked into the interior of the anchor cylinder 410, reducing insertion resistance, and improving the insertion efficiency and depth of the anchor cylinder 410.

[0075] Specifically, according to Figures 1-12 As shown, the worker operates an external crane that is attached to two lifting lugs 430. The lifting lugs 430 extend out of the top surface of the protective cover 310. The top of the water guide valve 440 extends out of the first protective cylinder 320, opening the cylinder cover 321. At the same time, the top cover 411 is attached to the inner end face of the protective cover 310. The top cover 411 pushes the air guide valve 340 out from inside the second protective cylinder 330. The second protective cylinder 330 and the first protective cylinder 320 have the same structure. Then, the water guide valve 440 is connected to a water pump, and the air guide valve 340 is connected to an air pump. Both the water guide valve 440 and the air guide valve 340 are bidirectional check valves.

[0076] After the crane hoists the entire suction anchor assembly 400 to the top of the seabed, under the pressure of the suction anchor assembly 400, the airbag 520 adapts to the shape of the seabed to ensure a seal on the outer wall of the bottom end of the anchor cylinder 410. Then, the water pump is started, and the seawater inside the anchor cylinder 410 is extracted through the water guide valve 440. During the seawater extraction process, a negative pressure is generated inside the anchor cylinder 410, which draws seabed soil into the anchor cylinder 410, causing the anchor cylinder 410 to begin to insert into the seabed. At the same time, the air pump is activated. Hot air is introduced into the protective cover 310 through the air valve 340. The hot air enters the inner cavity 414 of the anchor tube 410 through each air channel 4112, thereby heating the anchor tube 410. This allows the anchor tube 410 to heat the seabed soil when it is inserted into the low temperature seabed soil, thereby reducing the shear strength of the seabed soil. At the same time, the soil sucked into the anchor tube 410 is cut by the inner slice 413, making it easier for the anchor tube 410 to be inserted into the seabed soil.

[0077] As the anchor cylinder 410 is inserted into the soil, the airbag 520 remains attached to the seabed. The collar 510 slides against the outer wall of the anchor cylinder 410. The collar 510 first passes through the first resistance plate 421 attached to the inside of multiple receiving slots 412. The first resistance plate 421 is inserted into the seabed soil as the anchor cylinder 410 descends. Then, it passes through the bent and protruding second resistance plate 422, which pushes the second resistance plate 422 to flip over. It slides and rotates inside the sliding groove 4122 using the sliding column 423. The bent structure of the first resistance plate 421 and the second resistance plate 422 extends into the inner slot 4121 so that the collar 510 can continue to move along the outer wall of the anchor cylinder 410 until the collar 510 pushes and restricts the second resistance plate 422 to be completely attached to the inside of the receiving slot 412. The first resistance plate 421 is then completely flipped over and positioned and blocked inside the seabed soil.

[0078] As the anchor cylinder 410 continues to descend, the top surface of the collar 510 adheres to the bottom surface of the protective cover 310. When the collar 510 moves along the outer wall of the anchor cylinder 410, it maintains stable vertical movement using friction with the anchor cylinder 410, while exhibiting minimal circumferential rotation. This allows the locking block 313 to pass vertically through the docking groove 532 and insert into the second locking groove 531 when the collar 510 adheres to the bottom surface of the protective cover 310. Simultaneously, the collar 510 lifts the protective cover 310, elastically compressing the airbag 520, causing the top cover 411 to slide inside the protective cover 310. This allows the water guide valve 440 and the lifting lug 430 to begin retracting into the protective cover 310, completing the insertion of the anchor cylinder 410 into the seabed. The top of the water guide valve 440 is then... After the connection is separated, the air pump is started to fill the protective cover 310 with gas. The gas temperature is the same as the seawater temperature. The water guide valve 440 is completely retracted into the first protective cylinder 320. The cylinder cover 321 flips and fits against the top surface of the first protective cylinder 320, storing and protecting the top of the water guide valve 440. The airbag 520 elastically recovers and remains in contact with the top surface of the seabed. After the air pressure inside the protective cover 310 is filled to a preset air pressure, it is monitored by the air pressure sensor 350 and transmitted to the remote terminal to monitor the air pressure data in real time. The external air pump structure is separated from the air guide valve 340. The air guide valve 340 elastically retracts into the second protective cylinder 330. The remote terminal is a computer or other common existing technology that plays a control role.

[0079] Then, the ballast structure around the cage is adjusted, and the cage is anchored at multiple points on the seabed by high-holding-force anchors connected by multiple anchor chains. Tension buoys are installed on the anchor chains to maintain a constant tension state of the anchor chains, so as to adjust the depth of the cage in the seawater. A central column is set in the middle of the cage, and a central platform is set at the top of the central column. Then, the vertical winch 100 is started on the central platform to tighten the central mooring cable 200, adjust the tension of the central mooring cable 200, control the suspension depth of the cage, and when the central mooring cable 200 deflects from the connecting post 451, the connecting plate 462 pushes the spring 464, and the sliding support frame 466 drives the pressure sensor 465 to move on the slide rail 467 and generate pressure on the pressure sensor 465, thereby remotely monitoring the deflection of the central mooring cable 200, and thus adjusting the buoyancy of the cage at various angles in a timely manner to ensure the connection angle between the central mooring cable 200 and the suction anchor assembly 400.

[0080] If the anchor cylinder 410 rises and causes the airbag 520 to separate from the top of the seabed, the protective cover 310 will lack support. Under the gravity of the protective cover 310, the internal gas will be compressed, resulting in increased air pressure. The air pressure sensor 350 will then send feedback to the remote terminal, thereby adjusting the depth of the cage in a timely manner.

[0081] Finally, after completing the seabed anchoring task, the external crane clamps the claw structure into the first slot 311 of the protective cover 310. By pressing the protective cover 310, the airbag 520 is compressed, and the water guide valve 440 extends out from the first protective cylinder 320. Then, an external water pump is connected to fill the anchor cylinder 410 with water through the water guide valve 440. At the same time, the external crane attaches the hook to the lifting lug 430 and works with the claw to pull the anchor cylinder 410 out of the seabed.

[0082] When the anchor cylinder 410 becomes difficult to remove from the seabed due to corrosion, or when it is necessary to quickly separate it from the seabed and transfer the cage, the protective cover 310 can be rotated using the claws. The top cover 411 rotates synchronously with the protective cover 310 and separates from the anchor cylinder 410. At the same time, the locking block 313 rotates and engages with the second locking slot 531. The protective cover 310 and the sealing component 500 are then locked together. The anchor cylinder 410 can then be left on the seabed, and the disassembled structure can be taken away for subsequent use. This improves the efficiency of separating the device from the seabed, allowing the cage to be transferred first, while the anchor cylinder 410 left on the seabed can be excavated and processed later.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. Suspended weight mooring suction anchor vertical tension mechanism, characterized by: The utility model provides a kind of net cage, including the vertical winch (100) of being arranged on the top surface of central platform, the inside of the vertical winch (100) is wound and is provided with center mooring cable (200), center mooring cable (200) is arranged in net cage inside, center mooring cable (200) bottom end is connected with suction anchor assembly (400), suction anchor assembly (400) top end sliding sleeve is connected with protection assembly (300), suction anchor assembly (400) outer wall sliding sleeve is connected with sealing assembly (500); The utility model provides a kind of net cage, including the vertical winch (100) of being arranged on the top surface of central platform, the inside of the vertical winch (100) is wound and is provided with center mooring cable (200), center mooring cable (200) is arranged in net cage inside, center mooring cable (200) bottom end is connected with suction anchor assembly (400), suction anchor assembly (400) top end sliding sleeve is connected with protection assembly (300), suction anchor assembly (400) outer wall sliding sleeve is connected with sealing assembly (500); The utility model provides a kind of net cage, including the vertical winch (100) of being arranged on the top surface of central platform, the inside of the vertical winch (100) is wound and is provided with center mooring cable (200), center mooring cable (200) is arranged in net cage inside, center mooring cable (200) bottom end is connected with suction anchor assembly (400), suction anchor assembly (400) top end sliding sleeve is connected with protection assembly (300), suction anchor assembly (400) outer wall sliding sleeve is connected with sealing assembly (500). ​ 2. Suspended depth-keeping suction anchor vertical tensioning mechanism according to claim 1, characterized in that: ​ 3. Suspended depth-keeping suction anchor vertical tensioning mechanism according to claim 2, characterized in that: The protection assembly (300) further comprises a gas guide valve (340) connected to the top surface of the protection cover (310) in a penetrating mode, the bottom end of the gas guide valve (340) is elastically inserted into the inner end surface of the protection cover (310), the top surface of the protection cover (310) is provided with a second protection cylinder (330), the top end of the gas guide valve (340) is inserted into the inside of the second protection cylinder (330), the top cover (411) is slidably attached to the inner wall of the protection cover (310), the inner wall of the protection cover (310) is embedded with a sealing ring (312), the sealing ring (312) is attached to the outer wall of the anchor cylinder (410), the top surface of the top cover (411) and the inside of the protection cover (310) form an air cavity structure, the inside of the protection cover (310) is provided with a gas pressure sensor (350) in a penetrating mode, the bottom end of the gas pressure sensor (350) is arranged in the air cavity structure, and the gas guide valve (340) is inflated in the air cavity structure by an external air pump.

4. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 2, wherein: The bottom end of the top cover (411) is a cylindrical structure, the bottom end of the top cover (411) is threadedly connected to the inner wall of the top end of the anchor cylinder (410), and the bottom end of the top cover (411) is flush with the inner wall of the anchor cylinder (410).

5. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 4, wherein: The inside of the top cover (411) is provided with a gas guide channel (4112), one end of the gas guide channel (4112) is connected to the inner wall of the groove (4111) in a penetrating mode, the other end of the gas guide channel (4112) is connected to the outer wall of the bottom end of the top cover (411) in a penetrating mode, the inside of the anchor cylinder (410) is provided with an inner cavity (414), the other end of the gas guide channel (4112) is connected to the inside of the inner cavity (414) in a penetrating mode, and the gas guide channel (4112) and the inner cavity (414) are all provided with multiple groups along the circumferential direction of the top cover (411).

6. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 4, wherein: The sealing assembly (500) comprises a sleeve ring (510) slidably sleeved on the outer wall of the anchor cylinder (410), the bottom surface of the sleeve ring (510) is embedded with an annular structure air bag (520), the top surface of the sleeve ring (510) is fixed with a butt joint ring (530), the inner wall of the bottom surface of the protection cover (310) is a stepped structure, the butt joint ring (530) is inserted into the stepped structure of the bottom surface of the protection cover (310) in the second state, the side wall of the butt joint ring (530) is provided with a second clamping groove (531), the top surface of the second clamping groove (531) is provided with multiple butt joint grooves (532) in a penetrating mode, the inner wall of the stepped structure of the bottom surface of the protection cover (310) is fixed with multiple clamping blocks (313), the clamping blocks (313) are inserted into the second clamping groove (531) through the butt joint grooves (532), and the clamping blocks (313) are rotatably clamped in the second clamping groove (531) through the protection cover (310).

7. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 6, wherein: The suction anchor assembly (400) further comprises a turning resistance component (420), one side of the turning resistance component (420) is embedded on the outer wall of the anchor cylinder (410), the outer wall of the anchor cylinder (410) is provided with multiple receiving grooves (412), one side of the turning resistance component (420) is attached to the inside of the receiving groove (412), and multiple groups of the turning resistance component (420) are arranged along the circumferential direction of the anchor cylinder (410).

8. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 7, wherein: The turning resistance component (420) comprises a first resistance plate (421) arranged in the accommodation groove (412), the top surface of the first resistance plate (421) is integrally bent to be provided with a second resistance plate (422), both sides of the first resistance plate (421) are fixedly provided with sliding columns (423), the inner wall of the accommodation groove (412) is provided with an inner insertion groove (4121), the inner wall of the inner insertion groove (4121) is provided with two sliding grooves (4122), the sliding columns (423) are slidingly connected in the sliding grooves (4122), and the first resistance plate (421) is provided with two states through the sleeve ring (510); In the first state, the first resistance plate (421) is arranged in the accommodation groove (412), the outer wall of the first resistance plate (421) is flush with the outer wall of the anchor cylinder (410), and the second resistance plate (422) is arranged outside the accommodation groove (412); In the second state, the second resistance plate (422) is arranged outside the accommodation groove (412), the outer wall of the second resistance plate (422) is flush with the outer wall of the anchor cylinder (410), the first resistance plate (421) is arranged outside the accommodation groove (412), and the outer wall of the second resistance plate (422) is arranged on the inner wall of the sleeve ring (510).

9. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 1, wherein: The measurement bias component (460) comprises a fixed cylinder (461) fixedly sleeved on the outer wall of the central mooring cable (200), the side wall of the fixed cylinder (461) is fixedly provided with a connecting plate (462), the connecting plate (462) is mirror-symmetrically arranged about the vertical center line of the fixed cylinder (461), the inner portion of the connecting plate (462) is inserted with a guide rod (463), the bottom end of the guide rod (463) is connected with a pressure sensor (465), the outer wall of the guide rod (463) is sleeved with a spring (464), the outer wall of the pressure sensor (465) is rotatably sleeved with a sliding support frame (466), the top surface of the fixed column (450) is fixedly provided with two sliding rails (467), and the sliding support frame (466) is slidingly inserted into the sliding rails (467).

10. The suspended depth-keeping suction anchor vertical tensioning mechanism of claim 1, wherein: The inner wall of the bottom surface of the anchor cylinder (410) is in an inverted right angle structure, the inner wall of the bottom surface of the anchor cylinder (410) is fixedly provided with an inner cutting piece (413), and a plurality of inner cutting pieces (413) are arranged along the circumferential direction of the anchor cylinder (410).

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