Seabed anchoring device with self-adaptive function and ocean engineering equipment

Abstract

The invention relates to the technical field of ocean engineering, and particularly discloses a seabed anchoring device with a self-adaptive function and ocean engineering equipment. The seabed anchoring device comprises an outer shell, an inner sinker and a rope chain type connecting piece. A movable cavity penetrating through the bottom is formed in the outer shell; the inner sinker is movably arranged in the movable cavity in the vertical direction; the rope chain type connecting piece penetrates through the top of the outer shell to be connected with the inner sinker. And the height of the inner sinker is smaller than that of the movable cavity. According to the scheme, the inner sinker can comprise a plurality of embedded bodies, so that the inner sinker and the outer shell form a multi-layer nested structure, and the multi-layer nested structure can adapt to concave-convex terrains of the seabed and can adapt to disturbance of sea waves. When the inner sinker and the outer shell are adsorbed to the seabed, the rope chain type connecting piece can pull the inner sinker to float upwards relative to the outer shell to damage the adsorption sealing effect of the bottom face, and the effect of adsorption force on the seabed anchoring device is reduced.

Description

Technical Field

[0001] The present application relates to the field of marine engineering technology, and in particular to a seabed anchoring device and marine engineering equipment with adaptive functions. Background Art

[0002] A subsea anchoring device is a device used to provide anchoring force to a subject in a marine environment. This subject can be a floating object such as a ship, an offshore platform, or aquaculture cage, or an underwater vehicle such as a submersible. A submersible weight is a type of subsea anchoring device. It generally consists of a weight and an anchor chain. The anchor chain connects the weight to the subject. Once the weight sinks to contact the seabed, it uses its own weight to provide anchoring force to the subject.

[0003] Taking the main body as a deep-sea submersible as an example, a number of sinking gravity parts are set at the bottom of the submersible; after the gravity parts sink to touch the seabed, they can enable the submersible to maintain a certain distance from the seabed and achieve hovering, thereby preventing the submersible from being contacted by rocks on the seabed and damaging it.

[0004] During actual operations, in soft geological environments such as clay or silt, a suction force is generated between the weight and the seabed. This suction force must be overcome when the weight is separated from the seabed. The magnitude of this suction force is related to the bottom area of ​​the weight.

[0005] When the weight's bottom area is designed to be large, the larger base area generates a greater suction force when the weight leaves the bottom. This requires the main body to provide a greater pulling force on the weight, thus increasing the required power. Furthermore, if the positive buoyancy provided by the main body is insufficient to overcome the suction force, the suction force can affect the main body's normal lifting function and, in severe cases, damage the main body.

[0006] When the weight's bottom area is designed to be small, the suction force it must overcome when lifting off the bottom is small. However, in soft geological environments, the risk of the weight sinking is high. If multiple weights are connected to the main body, different weights sinking to different depths can create the risk of the main body becoming unstable or tilting. Summary of the Invention

[0007] In view of this, the purpose of this application is to provide a seabed anchoring device and marine engineering equipment with adaptive functions, which are used to solve some or all of the above problems.

[0008] To achieve the above technical objectives, the present application provides, in a first aspect, a submarine anchoring device with an adaptive function, comprising: an outer shell, an inner sinker, and a rope-chain connector;

[0009] The outer shell is provided with an active cavity penetrating the bottom;

[0010] The inner sinker is movably arranged in the movable cavity along the vertical direction;

[0011] The rope chain type connecting piece passes through the top of the outer shell and is connected to the inner sinker;

[0012] The height of the inner sinker is smaller than the height of the active cavity.

[0013] Furthermore, the inner sinker includes: a plurality of inlays;

[0014] A plurality of inlays are sequentially embedded from the inside to the outside to form a telescopic sleeve structure;

[0015] The rope-chain connector connects the innermost layer of the inlays.

[0016] Furthermore, the inner sinker is a sphere or a cylinder arranged axially in a vertical direction.

[0017] Furthermore, the bottom of the active cavity is square.

[0018] Furthermore, a plurality of grooves are provided on the outer peripheral surface of the inner sinker in the horizontal direction;

[0019] The plurality of grooves are evenly distributed around the circumference;

[0020] The rope chain type connecting piece extends into the groove and is connected with the inner sinker.

[0021] Furthermore, the inner layer of the outer shell is provided with a hollow cavity;

[0022] The hollow cavity is filled with sand and gravel.

[0023] Furthermore, the hollow cavities include a plurality of hollow cavities, and the plurality of hollow cavities are evenly distributed around the circumference.

[0024] Furthermore, a hollow cavity is provided inside the inner sinker;

[0025] The hollow cavity is filled with sand and gravel.

[0026] Furthermore, the outer shell and / or the inner sinker are made of plastic.

[0027] Furthermore, the outer shell and / or the inner sinker are made of concrete.

[0028] Furthermore, it also includes a limiter;

[0029] The limiting member is provided on the outer shell and is used for limiting the downward movement of the inner sinker relative to the outer shell.

[0030] A second aspect of the present application provides a marine engineering device, comprising: a device body and a plurality of the above-mentioned seabed anchoring devices with adaptive functions;

[0031] The rope-chain type connecting piece in the seabed anchoring device with adaptive function is connected to the equipment body.

[0032] It can be seen from the above technical solution that the present application provides a seabed anchoring device and marine engineering equipment with adaptive function; wherein, the seabed anchoring device includes: an outer shell, an inner sinker and a rope-chain connecting piece; a movable cavity running through the bottom is provided in the outer shell; the inner sinker can be movably arranged in the movable cavity along the vertical direction; the rope-chain connecting piece passes through the top of the outer shell to connect the inner sinker; the height of the inner sinker is less than the height of the movable cavity.

[0033] In this solution, the inner sinker and outer shell form a nested structure, allowing them to adapt to the uneven topography of the seabed and the disturbance of waves. When the inner sinker and outer shell are adsorbed to the seabed and the seabed anchor needs to be raised, the rope-chain connector can pull the inner sinker up relative to the outer shell, destroying the adsorption seal of the bottom surface, thereby reducing the impact of the adsorption force on the seabed anchor.

[0034] Therefore, the seabed anchoring device provided by this solution can be selected in a larger size, which can reduce the impact of the large bottom area by destroying the adsorption seal, and at the same time avoid the risk of sinking caused by the small bottom area. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A perspective structural diagram of a seabed anchoring device with an adaptive function provided in an embodiment of the present application, without showing a rope-chain connector;

[0037] Figure 2 A perspective structural diagram of the outer shell of a seabed anchoring device with adaptive function provided in an embodiment of the present application;

[0038] Figure 3 A perspective structural diagram of an inner sinker of a seabed anchoring device with adaptive function provided in an embodiment of the present application;

[0039] Figure 4A side cross-sectional view of a seabed anchoring device with adaptive function provided in an embodiment of the present application;

[0040] Figure 5 A three-dimensional diagram of a multi-layer structure of an inner sinker of a seabed anchoring device with adaptive function provided in an embodiment of the present application;

[0041] Figure 6 A side cross-sectional view of a submarine anchoring device with an adaptive function provided in an embodiment of the present application, with a limiter provided;

[0042] In the picture:

[0043] 10. Outer shell; 11. Active cavity; 12. Hollow cavity; 13. Sand injection hole; 14. Perforation; 15. Second hanging ring;

[0044] 20. Inner sinker; 21. Groove; 22. Inlay; 221. Second movable cavity; 23. Hollow cavity; 24. Hanging ring; 25. Second sand injection hole;

[0045] 30. Rope and chain connectors;

[0046] 40. Limiting parts. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions of the embodiments of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection requested by this application.

[0048] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0049] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, replaceable connections, or integral connections. They can also refer to mechanical connections or electrical connections. They can also refer to direct connections or indirect connections through an intermediate medium. They can also refer to internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0050] See also Figures 1 to 4 In the first aspect of the embodiments of the present application, there is provided a seabed anchoring device with adaptive function, which can be used as a bottom-sinking gravity member and can be applied to marine engineering equipment such as submersibles and offshore aquaculture cages; after the marine anchoring device sinks to the seabed, it can provide anchoring force to the connected marine engineering equipment through its own gravity and the friction force of the seabed.

[0051] In this embodiment, the seabed anchoring device includes an outer shell 10 , an inner sinker 20 and a rope-chain connector 30 .

[0052] The outer shell 10 serves as the primary load-bearing structure, capable of sinking to the bottom of the water under its own weight. The outer shell 10's external structure can be configured similarly to existing sinking weights, such as a rectangular block. Unlike existing sinking weights, this embodiment includes a movable cavity 11 extending through the bottom of the outer shell 10 and an inner sinker 20.

[0053] The inner sinker 20 is also a component that sinks to the bottom of the water by its own weight. Furthermore, the inner sinker 20 is vertically movable within the movable chamber 11, forming a nested structure with the outer shell 10 that can move relative to each other. The height of the inner sinker 20 is less than that of the movable chamber 11, allowing it to fully enter the movable chamber 11 or extend outside the movable chamber 11 through a through-structure at the bottom of the movable chamber 11. The inner sinker 20 is connected to the main body of the marine engineering equipment via a rope-chain connector 30.

[0054] The rope-chain connector 30 passes through the top of the outer shell 10 to connect to the inner sinker 20. In actual applications, the rope-chain connector 30 can be a chain-type structure, such as an existing anchor chain. In other embodiments, the rope-chain connector 30 can also adopt a rope-type structure that has high strength, wear resistance and good flexibility, such as a synthetic fiber rope made of ultra-high molecular weight polyethylene and configured in the form of a multi-strand braided rope. In order to facilitate the rope-chain connector 30 to pass through the outer shell 10, a perforation 14 can be provided at the top of the outer shell 10; the perforation 14 can allow the rope-chain connector 30 to pass through, and the aperture of the perforation 14 is smaller than the outer diameter of the inner sinker 20 to limit the inner sinker 20 from passing through. When the rope-chain connector 30 pulls the inner sinker 20 to rise, after the inner sinker 20 rises to abut the outer shell 10, it will push the outer shell 10 to rise synchronously.

[0055] For ease of explanation, the marine anchoring device provided in this embodiment is connected to a submersible as an example, that is, one end of the rope chain connector 30 is connected to the submersible, and the other end is connected to the inner sinker 20.

[0056] During use, the outer shell 10 and the inner sinker 20 sink together into the seawater until they touch the seabed. At this time, if the rope chain connector 30 is pulled up, the gravity of the outer shell 10 and the inner sinker 20 must be overcome at the same time, so the outer shell 10 and the inner sinker 20 can jointly provide anchoring force for the submersible.

[0057] When rocks or uneven surfaces are present on the seabed, traditional bottom-sinking weights can become unstable due to the uneven seabed topography, posing a risk of capsizing. Furthermore, when the bottom-sinking weight is unstable, its contact area with the seabed is small, resulting in insufficient anti-overturning torque and a tendency to drift. This can cause the bottom-sinking weight to shift under the influence of factors such as ocean currents, reducing the accuracy of its placement. The seabed anchoring device provided in this embodiment is adaptive to seabed topography, thus avoiding these problems.

[0058] Specifically, because the inner sinker 20 and outer shell 10 can move relative to each other, they can adapt to the seabed topography, increasing the contact area between the seabed anchor and the seabed, increasing its placement stability while reducing the risk of capsizing, thereby improving the overall balance and stability of the submersible during hovering. At the same time, the improved placement stability reduces the risk of the seabed anchor shifting, thereby also improving the placement accuracy of the seabed anchor.

[0059] When waves disturb a submersible, it rises and falls with the waves, transmitting the disturbance to the submerged weight via the rope-chain connector 30. Normally, the buoyancy generated by the disturbance is insufficient to lift the submerged weight. However, the disturbance causes the rope-chain connector 30 to undergo a reciprocating process of forced stretching and relaxation, causing significant damage to both the rope-chain connector 30 and the submerged weight. Furthermore, localized stress concentration occurs at the connection point between the submersible and the rope-chain connector 30, increasing the risk of damage or instability to the submersible. The seabed anchoring device provided in this embodiment can enhance its adaptability to wave disturbances, thereby avoiding the aforementioned problems.

[0060] Specifically, when the submersible is affected by the waves and rises and falls, the submersible can more easily drive the inner sinker 20 to rise and fall due to the lighter mass of the inner sinker 20, thereby reducing the degree of reciprocating stretching and relaxation of the rope-chain connector 30, and at the same time reducing the stress on the submersible. When the inner sinker 20 is pulled up to abut the outer shell 10, due to the relatively heavier mass of the outer shell 10, the outer shell 10 can also ensure the overall stability of the seabed anchoring device. In general, in this embodiment, the structure in which the inner sinker 20 and the outer shell 10 can move relative to each other increases the movable stroke of the rope-chain connector 30, so that the seabed anchoring device has the adaptive ability to float and sink following the disturbance of the waves, which can reduce damage to the submersible and the seabed anchoring device while ensuring stability.

[0061] It should be noted that, in actual application, the movable stroke of the inner sinker 20 in the movable cavity 11 can be set according to actual application results.

[0062] In soft geological environments like clay or sludge, submerged weights form a seal with the seabed. Traditionally, submerged weights are pulled up directly by applying a pulling force that overcomes the suction force. This places high demands on the submersible's power system and can easily damage the submersible if the suction force is too strong. The submersible anchoring device provided in this embodiment overcomes this seal and suction effect, thereby addressing this issue.

[0063] Specifically, in the seabed anchoring device provided by this embodiment, perforations 14 allow seawater to enter the active chamber 11. Therefore, the degree of sealing and adsorption between the inner sinker 20 and the outer shell 10 is lower than that of a solid structure of the same volume. Furthermore, when the rope-chain connector 30 is pulled upward, it first pulls the inner sinker 20 upward. Because the height of the inner sinker 20 is less than that of the active chamber 11, it can be completely retracted into the active chamber 11. Consequently, the upward movement of the inner sinker 20 creates a height difference between its bottom surface and the bottom surface of the outer shell 10, destroying the sealing and adsorption effect between the two and the seabed. Once the sealing and adsorption effect is destroyed, the power system overcomes the gravity of the seabed anchoring device to recover the seabed anchoring device. Therefore, the seabed anchoring device provided by this embodiment can overcome the effects of adsorption forces on the submersible and the seabed anchoring device, while allowing the inner sinker 20 and the outer shell 10 to have larger bottom area design values, reducing the risk of them sinking.

[0064] Assume that, without an adsorption force, the power system requires a first tension value to recover the solid sinking weight. With an adsorption force, the power system requires a second tension value to recover the solid sinking weight. The second tension value is significantly greater than the first tension value. This embodiment provides a device for recovering a seabed anchor. The power system can apply a third tension value to the rope-chain connector 30, where the third tension value is greater than the first tension value but less than the second tension value.

[0065] Specifically, in the process where the inner sinker 20 is pulled up by the tension and rises to the top surface of the movable chamber 11, the inner sinker 20 does not rise completely because the adsorption force has not been completely eliminated at the beginning, so the outer shell 10 remains stationary. After a certain period of time, the sludge that rises with the inner sinker 20 gradually falls back, so that the sealing adsorption effect between the inner sinker 20 and the outer shell 10 and the seabed is destroyed. At this time, the power system still maintains the tension of the third tension value to achieve the recovery of the outer shell 10 and the inner sinker 20. In actual application, since the bottom of the outer shell 10 is annular, the adsorption force it generates is much smaller than the adsorption force under the solid state; therefore, the difference between the second tension value and the third tension value in this embodiment is large, which can effectively reduce the power requirements of the power system and reduce the risk of damage to the submersible.

[0066] This embodiment provides another implementation method for recovering the seabed anchoring device as follows: a pulling force of a third pulling force value is provided to the rope chain connector 30 through the power system; the inner sinker 20 is pulled up to the top surface of the movable cavity 11 by the pulling force, and then the pulling force is removed to make the inner sinker 20 sink. This is repeated a preset number of times to destroy the sealing adsorption effect between the inner sinker 20 and the outer shell 10 and the seabed. After that, the power system still maintains the pulling force of the third pulling force value to achieve the recovery of the outer shell 10 and the inner sinker 20.

[0067] In another embodiment provided in this application, please refer to Figures 1 to 5 The inner sinker 20 includes: a plurality of inlays 22; a plurality of inlays 22 are sequentially embedded from the inside to the outside to form a telescopic sleeve structure; a rope chain connecting member 30 connects the innermost inlay 22.

[0068] As an implementation method, Figure 5 As shown, the inner sinker 20 can include multiple inlays 22 to form a multi-layered, telescopic sleeve structure. The inlays 22 are provided with second movable cavities 221. The inner inlays 22 are positioned within the second movable cavities 221 of the adjacent outer inlays 22. Furthermore, the height of the inlays 22 is less than the height of the second movable cavities 221 within which they are placed.

[0069] In this embodiment, the inner sinker 20 includes four inlays 22, which, from the outside in, are Inlay 1, Inlay 2, Inlay 3, and Inlay 4. Inlay 4 is shorter than the height of the second active cavity 221 of Inlay 3; Inlay 3 is shorter than the height of the second active cavity 221 of Inlay 2; and Inlay 2 is shorter than the height of the second active cavity 221 of Inlay 1. Furthermore, Inlay 4, the innermost inlay 22, is connected to the rope-chain connector 30.

[0070] In this embodiment, the multi-layer nested structure increases the flexibility of the rope-chain connector 30. For example, in uneven seabed terrain, the inlays 22 can move relative to each other, thereby further improving the seabed anchoring device's ability to adapt to the terrain. When facing wave disturbances, since the mass of the innermost inlay 22 is relatively small, the rope-chain connector 30 is also easier to drive its movement, and the upward pull resistance of the rope-chain connector 30 will be transmitted from the inside to the outside to each inlay 22 to achieve a step-by-step increase; compared to the case where the rope-chain connector 30 needs to bear the upward pull resistance equivalent to the overall weight of the inner sinker 20 at one time, the rope-chain connector 30 in this embodiment is more flexible and therefore has a stronger ability to adapt to wave disturbances.

[0071] When the sealing adsorption effect needs to be destroyed, when the rope chain connector 30 pulls the inner sinker, the existence of the multi-layer nested structure allows the inner sinker 20 to be separated from the seabed layer by layer. Therefore, the adsorption force to be resisted is smaller, which can effectively reduce the impact of the adsorption force.

[0072] It should be noted that the innermost inlay 22 is relatively prone to sinking due to its small bottom area. However, due to its small mass, even if it does sink, the impact on the submersible is also small, and thus it will not cause the submersible to become unstable or tilt.

[0073] In addition, a limiting structure can be provided on the inlay 22 to limit the sliding stroke of adjacent inlays 22 through the limiting structure, thereby preventing multiple inlays 22 from completely detaching. This is illustrated with inlay one and inlay two. In the case where the inlay 22 is made of metal, the limiting structure can be, for example, a protrusion provided on the top of the outer periphery of inlay two, and after inlay two is movably installed in the second movable cavity 221 of inlay one, a positioning block is welded to the bottom of inlay one to limit the sliding out of the protrusion through the positioning block, thereby achieving the limitation of the movable stroke of inlay two. Similarly, when the inlay 22 is made of plastic material, the positioning block can be provided at the bottom of the inlay 22 by hot melt welding or the like to achieve the limitation of the movable stroke of the inlay 22.

[0074] In other embodiments, Figure 3 As shown, the inner sinker 20 may include an inlay 22 , that is, the inner sinker 20 is a single-layer structure.

[0075] In one embodiment, the inner sinker 20 is a sphere or a cylinder arranged axially in a vertical direction, which can reduce the wear between the outer periphery of the inner sinker 20 and the active cavity 11 .

[0076] Based on the above embodiment, the bottom of the movable cavity 11 is square. In the case where no limiting structure is provided and the inner sinker 20 completely slides out of the movable cavity 11, the inner sinker 20 is easier to reinstall into the movable cavity 11, reducing the risk of the inner sinker 20 and the bottom of the outer shell 10 getting stuck.

[0077] In one embodiment, a plurality of grooves 21 are provided on the outer peripheral surface of the inner sinker 20 in the horizontal direction; the plurality of grooves 21 are evenly distributed around the circumference; and the rope chain connector 30 extends into the grooves 21 to connect with the inner sinker 20 .

[0078] In this embodiment, a hanging ring 24 can be provided in the groove 21, and the rope chain connector 30 is connected through the hanging ring 24. Through the multiple grooves 21 evenly distributed around the circumference, the force uniformity between the rope chain connector 30 and the inner sinker 20 can be increased, and the tilting of the inner sinker 20 relative to the outer shell 10 can be reduced.

[0079] It should be noted that when multiple inlays 22 are provided, if the diameter of the innermost inlay 22 is small and it is not convenient to provide the groove 21 , the rope chain connector 30 can be configured to directly extend into the interior of the inlay 22 and connect to the inlay 22 .

[0080] In one embodiment, the inner layer of the outer shell 10 is provided with a hollow cavity 12 ; the hollow cavity 12 is filled with sand and gravel.

[0081] The sand and gravel in the outer shell 10 can play a tuning role and a damping effect of the particle damping, and at the same time can lower the center of gravity of the outer shell 10 to improve stability.

[0082] As an embodiment, the outer shell 10 may be provided with a sand injection hole 13 connected to the hollow cavity 12; sand and gravel can be injected into the hollow cavity 12 through the sand injection hole 13, and then the sand injection hole 13 can be sealed by sealing plugs or other means.

[0083] In practical applications, the center of gravity of the outer shell 10 can be adjusted by adjusting the amount of sand filling.

[0084] In a more specific embodiment, the hollow cavities 12 include a plurality of hollow cavities 12 , and the plurality of hollow cavities 12 are evenly distributed around the circumference.

[0085] The multiple hollow cavities 12 can separate the sand and gravel, thereby preventing the outer shell 10 from tilting during the sinking process or when contacting the seabed, which may cause the sand and gravel to excessively shift to the same side, thereby improving the overall stability of the outer shell 10.

[0086] In application, the interior of the outer shell 10 can be divided into a plurality of hollow cavities 12 by providing partitions in the outer shell 10 .

[0087] In one embodiment, a hollow cavity 23 is provided inside the inner sinker 20 ; the hollow cavity 23 is filled with sand and gravel.

[0088] Similarly, the top surface of the inner sinker 20 can be provided with a second sand injection hole 25. Sand and gravel can be injected into the hollow cavity 23 through the second sand injection hole 25, and then the second sand injection hole 25 can be sealed by a sealing plug or other means. Furthermore, when the inner sinker 20 is configured to include multiple inlays 22, the hollow cavity 23 can be configured to have a sandwich cavity structure similar to the hollow cavity 12.

[0089] During application, when the seabed terrain is undulating or the geology is soft, the inner sinker 20 and the outer shell 10 can not only form a height difference and adapt to the terrain, but also adaptively adjust the overall center of gravity according to the landing position and landing posture to increase the stability of the seabed anchoring device.

[0090] In one embodiment, the outer shell 10 and / or the inner sinker 20 are made of plastic. Specific plastic materials include glass fiber reinforced plastic (GFRP), polyetheretherketone (PEEK), or modified engineering plastics, which are characterized by wear resistance, corrosion resistance, and ease of manufacture. After fabrication, the outer shell 10 and inner sinker 20 can be self-sinking using the aforementioned sand injection method.

[0091] As an embodiment, the outer shell 10 and / or the inner sinker 20 are made of metal.

[0092] As an embodiment, the outer shell 10 and / or the inner sinker 20 are made of concrete.

[0093] In one embodiment, see Figures 1 to 6 The seabed anchoring device further includes a limit member 40 ; the limit member 40 is disposed on the outer shell 10 and is used to limit the downward movement of the inner sinker 20 relative to the outer shell 10 .

[0094] As in the embodiment in which a limiting structure is provided on the inlay 22 , the limiting member 40 may be a raised block provided on the bottom of the outer shell 10 so as to form a limiting fit with the raised block on the outer periphery of the inner sinker 20 .

[0095] As an embodiment, based on the outer shell 10 being made of metal, the limiter 40 can be a chain structure. Specifically, a second hanging ring 15 can be provided in the movable cavity 11; the limiter 40 is connected between the hanging ring 24 and the second hanging ring 15, thereby providing travel limit for the inlay 22 through its chain structure.

[0096] In practical applications, when preparing the outer shell 10 and the inner sinker 20, the outer shell 10 can be divided into multiple parts to facilitate the installation of other components. After the stopper 40, the rope chain connector 30, and the inner sinker 20 are installed, the above multiple parts are packaged by welding or other methods to form a seabed anchoring device.

[0097] The limiter 40 can limit the moving range of the inner sinker 20, so that the inner sinker 20 can transfer the sinking force to the outer shell 10 after sinking to a certain extent. On the one hand, this makes the overall structure more stable. On the other hand, when the inner sinker 20 sinks, the outer shell 10 can provide supporting force to the inner sinker 20 through the limiter 40 to prevent the inner sinker 20 from sinking excessively.

[0098] The second aspect of the present application provides a marine engineering equipment, comprising: an equipment body and several of the above-mentioned seabed anchoring devices with adaptive functions; the rope chain connector 30 in the seabed anchoring devices with adaptive functions connects the equipment body.

[0099] The marine engineering equipment provided in this embodiment can be an offshore aquaculture cage, an offshore operation platform, a submersible, etc. The seabed anchoring device with adaptive function can increase the stability of the marine engineering equipment when it is hovering and reduce the interference of waves.

[0100] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the aforementioned examples or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A seabed anchoring device with adaptive function, characterized in that: include: An outer shell (10), an inner sinker (20) and a rope chain connecting member (30); The outer shell (10) is provided with an active cavity (11) penetrating the bottom; The inner sinker (20) is movably arranged in the movable cavity (11) along the vertical direction; The rope chain connector (30) passes through the top of the outer shell (10) and is connected to the inner sinker (20); The height of the inner sinker (20) is smaller than the height of the active cavity (11).

2. The seabed anchoring device with adaptive function according to claim 1, characterized in that: The inner sinker (20) includes: a plurality of inlays (22); A plurality of inlays (22) are sequentially embedded from the inside to the outside to form a telescopic sleeve structure; The rope chain connector (30) connects the innermost layer of the inlay (22).

3. The seabed anchoring device with adaptive function according to claim 1, characterized in that: The inner sinker (20) is a sphere or a cylinder arranged axially in a vertical direction.

4. The seabed anchoring device with adaptive function according to claim 3, characterized in that: The bottom of the active cavity (11) is square.

5. The seabed anchoring device with adaptive function according to claim 3, characterized in that: The inner sinker (20) is provided with a plurality of grooves (21) on its outer peripheral surface in the horizontal direction; The plurality of grooves (21) are evenly distributed around the circumference; The rope chain connecting piece (30) extends into the groove (21) to connect with the inner sinker (20).

6. The seabed anchoring device with adaptive function according to claim 1, characterized in that: The inner layer of the outer shell (10) is provided with a hollow cavity (12); The hollow cavity (12) is filled with sand and gravel.

7. The seabed anchoring device with adaptive function according to claim 6, characterized in that: The hollow cavities (12) include a plurality of hollow cavities (12), and the plurality of hollow cavities (12) are evenly distributed around the circumference.

8. The seabed anchoring device with adaptive function according to claim 6 or 7, characterized in that: A hollow cavity (23) is provided inside the inner sinker (20); The hollow cavity (23) is filled with sand and gravel.

9. The seabed anchoring device with adaptive function according to claim 1, characterized in that: The outer shell (10) and / or the inner sinker (20) are made of plastic.

10. The seabed anchoring device with adaptive function according to claim 1, characterized in that: The outer shell (10) and / or the inner sinker (20) are made of concrete.

11. The seabed anchoring device with adaptive function according to claim 1, characterized in that: Also includes a limiter (40); The limiting member (40) is provided on the outer shell (10) and is used to limit the downward movement of the inner sinker (20) relative to the outer shell (10).

12. A marine engineering equipment, characterized in that: include: The device body and several seabed anchoring devices with adaptive functions as claimed in any one of claims 1 to 11; The rope chain type connecting piece (30) in the seabed anchoring device with self-adaptive function is connected to the equipment body.

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