Seabed anchoring device

Abstract

The utility model provides a seabed anchoring device. The seabed anchoring device comprises a vibroflotation mechanism and an expansion anchor, the vibroflotation mechanism comprises a vibroflotation body with a power unit and a vibration excitation body integrally connected with the vibroflotation body, the expansion anchor comprises a cylinder coaxially connected with the vibration excitation body in a sleeved mode, a locking piece is arranged on the vibration excitation body, and the cylinder is connected with the expansion anchor in a sleeved mode. The locking piece is used for fixedly connecting the vibration excitation body with the cylinder body, and the vibroflotation body is provided with an unlocking piece which can overcome the locking force of the locking piece so as to separate the vibroflotation mechanism from the expansion anchor. According to the seabed anchoring device, the expansion anchor and the vibroflotation mechanism are integrated, the power unit on the vibroflotation mechanism is used for fluidizing soil, the purpose of easily pouring the soil into a seabed soil layer is achieved, and the seabed anchoring device is short in installation time, high in working efficiency and large in pulling resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seabed anchoring system, especially to a seabed anchoring device. BACKGROUND

[0002] With the increasing interest and demand of human beings in exploring marine resources, deep sea technology has become a new research field. For the development of deep water resources, floating structures are more reliable than traditional fixed structures, and anchoring technology is one of the key technologies. Anchor is the key equipment for floating structure to be fixed to the seabed by mooring line and to protect the stability of the structure. Once the anchor fails (walks), it will cause a large displacement of the floating structure, resulting in a major or even catastrophic accident.

[0003] Due to the limitation of water depth, deck load and other loads, the traditional gravity anchor can only be applied to small water depth environment, and the vertical anchor such as suction anchor and pile anchor becomes the main equipment. However, the diameter and height of suction anchor are generally more than 10 meters, and the cost is high; pile anchor needs to be driven into hard rock, so the length of pile is long, and external equipment is needed for piling, which has long construction period, low efficiency and high cost. SUMMARY

[0004] The utility model aims at providing a seabed anchoring device with short installation time, high working efficiency and large pulling resistance.

[0005] The technical scheme of the utility model is: a seabed anchoring device, comprising a churning mechanism and an expanded body anchor, the churning mechanism comprises a churning body with a power unit and a vibration excitation body integrally connected with the churning body, the expanded body anchor comprises a barrel body coaxially sleeved with the vibration excitation body, a locking piece is arranged on the vibration excitation body, the locking piece is used for fixing the vibration excitation body and the barrel body, and an unlocking piece is arranged on the churning body, which can overcome the locking force of the locking piece to separate the churning mechanism and the expanded body anchor.

[0006] In the above scheme, the expanded body anchor and the churning mechanism are integrated, the power unit on the churning mechanism is used to fluidize the soil, so that the expanded body anchor can be easily poured into the seabed soil layer, and the seabed anchoring device with short installation time, high working efficiency and large pulling resistance is realized.

[0007] Preferably, a plurality of slides are arranged on the inner wall of the barrel body in a circular manner, the slides extend along the axial direction of the barrel body, the unlocking pieces are arranged one by one corresponding to the slides, and the unlocking pieces apply a pushing force to the slides in an extended manner, and the pushing force is greater than the locking force of the locking piece.

[0008] Preferably, the unlocking member is a hydraulic cylinder, and a limiting plate is arranged on the vibration body and located in the extending direction of the telescopic rod of the hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is arranged on the vibration body, and the telescopic rod of the hydraulic cylinder can contact the barrel when being extended.

[0009] Preferably, at least one side column is arranged on the vibration body in the axial direction, and a water pipe is arranged in the side column, and the side column is embedded in the slide.

[0010] Preferably, the expansion anchor further comprises expansion plates hinged to the lower end of the barrel through pivots, and the expansion plates are circumferentially arranged, and the expansion plates are connected with the barrel through telescopic push rods, and the expansion plates are unfolded relative to the barrel when the push rods are extended, and the expansion plates are folded relative to the barrel when the push rods are retracted.

[0011] Preferably, the upper end of the barrel is circumferentially arranged with a plurality of anchor bodies.

[0012] Preferably, the bottom of the barrel is a tapered head, and a water outlet hole is arranged at the bottom of the tapered head and communicates with the inside of the barrel.

[0013] Compared with the related art, the sea anchor device has the following beneficial effects:

[0014] I. The sea anchor device integrates the expansion anchor and the vibration mechanism, fluidizes the soil by using the power unit of the vibration mechanism, easily pours into the seabed soil, and realizes the sea anchor device with short installation time, high working efficiency and large pulling resistance;

[0015] II. The expansion anchor has expansion plates and anchor bodies that can be unfolded or folded, increases the contact area with the soil layer, and further improves the pulling resistance of the anchor;

[0016] III. When the expansion anchor is penetrated to the specified depth, the expansion anchor is anchored in the silt, and the vibration mechanism is separated from the expansion anchor, which realizes repeated use and greatly reduces the cost;

[0017] IV. The structure of the vibration mechanism can be applied to the drilling and anchoring of sandy soil, silt and cohesive soil. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure of the sea anchor device provided by the utility model is shown in the schematic view;

[0019] Figure 2 The structure of the vibration mechanism is shown in the schematic view;

[0020] Figure 3 The structure of the expansion anchor when the expansion plates are folded is shown in the schematic view;

[0021] Figure 4Schematic diagram of the structure when the expanded anchor and expanded plate are deployed.

[0022] Figure 5 for Figure 4 A top-down view;

[0023] Figure 6 This is a schematic diagram of the installation structure for the unlocking component.

[0024] In the attached diagram: 1. Vibratory compaction mechanism; 11. Vibratory compaction body; 12. Exciter body; 13. Unlocking component; 14. Limiting plate; 15. Locking component; 16. Side column; 2. Expanding anchor; 21. Anchor body; 22. Slide rail; 23. Expanding plate; 24. Rotating shaft; 25. Push rod; 26. Water outlet; 27. Cylinder. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0026] like Figure 1 As shown, the seabed anchoring device provided in this embodiment includes a vibratory compaction mechanism 1 and an expanded anchor 2. As... Figure 2 As shown, the vibratory compaction mechanism 1 includes a vibratory compaction body 11, an exciter body 12, an unlocking component 13, a limiting plate 14, a locking component 15, and a side post 16. The vibratory compaction body 11 has a power unit capable of generating vibrational impact power. The exciter body 12 is integrally connected to the vibratory compaction body 11. The vibratory compaction body 11 transmits the excitation force to the exciter body 12. The exciter body 12 receives the vibrational impact force transmitted by the vibratory compaction body 11 and outputs this force to extend into the soil layer. The extended anchor 2 can be structurally extended to improve its anchoring force and pull-out resistance in the soil layer. The unlocking component 13 is connected to the vibratory compaction body 11 and is close to the exciter body 12. Figure 6 As shown, the unlocking component 13 is a hydraulic cylinder, the cylinder barrel of which is fixed on the vibratory impact body 11, and multiple cylinders are arranged circumferentially along the vibratory impact body 11. The vibratory impact body 11 is also provided with a limiting plate 14, which is located in the extension direction of the telescopic rod of the hydraulic cylinder. The limiting plate 14 has a through hole for the telescopic rod to pass through, so as to guide the telescopic rod and ensure that the telescopic rod acts on the slide rail 22.

[0027] The vibrating body 12 is provided with multiple locking elements 15 along its axial direction, and the locking elements 15 are arranged circumferentially. The locking elements 15 can be springs and locking blocks, with the springs embedded inside the vibrating body 12 and the locking blocks placed outside the vibrating body 12. Under the action of the springs, the locking blocks abut against the inner wall of the cylinder 27 of the expanded anchor 2. Alternatively, the locking elements 15 can be upwardly inclined snap-fits that engage with a structure on the inner wall of the cylinder 27 of the expanded anchor 2.

[0028] The outer surface of the exciter 12 is provided with four circumferentially arranged side pillars 16, which extend along the axial direction of the exciter 12. Each side pillar 16 contains a water pipe, the upper end of which passes through the top of the expanded anchor 2. The water pipe separates the water from the important electronic components inside the expanded anchor 2, protecting these components. Simultaneously, the side pillars 16 can be embedded in the slide rails 22 inside the expanded anchor, achieving coaxial nesting between the vibratory impact mechanism 1 and the expanded anchor 2.

[0029] like Figure 3 , Figure 4 The expanded anchor 2 includes an anchor body 21, a slide rail 22, an expanded plate 23, a rotating shaft 24, a push rod 25, a water outlet 26, and a cylindrical body 27. The upper end of the cylindrical body 27 is open, and the lower end is a cone. The water outlet 26 is located at the bottom of the cone. The water pipe communicates with the water outlet 26 inside the cylindrical body 27. Figure 5 As shown, four sliding tracks 22 are arranged in a circular pattern inside the cylinder 27, as... Figure 6 As shown, the upper end of the slide 22 extends to the upper end of the cylinder 27 so that the unlocking member 13 can perform work.

[0030] The cylinder 27 is a hollow cylinder made of steel. Four anchor bodies 21 are arranged circumferentially at the top of the cylinder 27, making the expanded anchor 2 torpedo-shaped. This shape allows the expanded anchor 2 to penetrate the soil more easily, and at the same time, the anchor bodies 21 can increase the contact area with the surrounding soil, further improving the pull-out resistance of the expanded anchor.

[0031] like Figure 6 As shown, the vibrating body 12 is coaxially sleeved with the cylinder 27, and the slide rail 22 and the unlocking component 13 are set one-to-one. The size of the expanded anchor 2 is optimized according to its stress requirements, and then the appropriate power of the vibratory body 11 is selected according to the size of the expanded anchor 2 to ensure that the anchoring device can smoothly enter the soil.

[0032] like Figure 3 As shown, four expanding plates 23 are arranged circumferentially at the lower part of the cylindrical body 27. The expanding plates 23 are hinged to the cylindrical body 27 via rotating shafts 24. The expanding plates 23 are connected to the cylindrical body 27 via telescopic push rods 25. When the push rods 25 extend, the expanding plates 23 expand relative to the cylindrical body 27 (e.g., ...). Figure 4 ,Figure 5 As shown), the expanding plate 23 is embedded in the soil like a mechanical claw, thereby greatly improving the pull-out resistance of the expanding anchor. When the push rod 25 retracts, the expanding plate 23 folds relative to the cylinder 27 (as shown). Figure 3 As shown). Figure 5 As shown, the anchor body 21 and the expansion plate 23 are staggered. When the anchoring device is inserted downwards, the expansion plate 23 is in a folded state.

[0033] like Figure 4 As shown, the expansion plate 23 is an arc-shaped plate, and the radius of curvature on the arc-shaped plate is the same as the radius of the cylinder 27. When folded, the expansion plate 23 can fit seamlessly with the cylinder 27.

[0034] In use, the offshore crane vessel lifts the vibratory compaction mechanism 1 using a tower crane. After determining the anchor point location, the anchoring device is lowered at a constant speed under the traction of the basket. After the expanded anchor 2 touches the seabed, the power unit of the vibratory compaction body 11 is activated, and the power is transmitted to the exciter body 12 and the expanded anchor 2. Under the action of high-frequency vibration and high-pressure water, the seabed anchoring device quickly penetrates into the seabed soil layer.

[0035] Once the seabed anchoring device reaches the designated depth, the tower crane's traction rope moves up and down, and under the action of high-pressure water, water flows out from the outlet hole 26, dispersing the mud and sand around the expanded anchor 2. At this time, the push rod 25 extends, and the expanded plate 23 unfolds.

[0036] Once the expansion plate 23 is fully extended, the unlocking mechanism 13 is activated, causing the piston rod to extend and act on the slide rail 22. The piston rod pushes the slide rail 22 downwards; this thrust is greater than the locking force of the locking mechanism 15, causing the vibratory impact mechanism 1 to separate from the expansion anchor 2. The tower crane is then activated to pull the vibratory impact mechanism 1 out of the diagram, completing one anchoring installation.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A seabed anchoring device, characterized in that, The device includes a vibratory impact mechanism (1) and an expanded body anchor (2). The vibratory impact mechanism (1) includes a vibratory impact body (11) with a power unit and an exciter body (12) integrally connected to the vibratory impact body (11). The expanded body anchor (2) includes a cylinder (27) coaxially sleeved with the exciter body (12). The exciter body (12) is provided with a locking member (15) for fixing the exciter body (12) and the cylinder (27). The vibratory impact body (11) is provided with an unlocking member (13) that can overcome the locking force of the locking member (15) to separate the vibratory impact mechanism (1) and the expanded body anchor (2).

2. The seabed anchoring device according to claim 1, characterized in that, Multiple slides (22) are arranged in a circular pattern on the inner wall of the cylinder (27). The slides (22) extend along the axial direction of the cylinder (27). The unlocking member (13) is provided in a one-to-one correspondence with the slides (22). The unlocking member (13) extends outward to apply a thrust to the slides (22). This thrust is greater than the locking force of the locking member (15).

3. The seabed anchoring device according to claim 1 or 2, characterized in that, The unlocking component (13) is a hydraulic cylinder. The vibratory body (11) is also provided with a limiting plate (14). The limiting plate (14) is located in the extension direction of the telescopic rod of the hydraulic cylinder. The cylinder barrel of the hydraulic cylinder (31) is set on the vibratory body (11). After the telescopic rod of the hydraulic cylinder is extended, it can contact the cylinder (27).

4. The seabed anchoring device according to claim 2, characterized in that, At least one side column (16) is provided on the vibrator (12) along the axial direction. A water pipe is provided inside the side column (16), and the side column (16) is embedded in the slide (22).

5. The seabed anchoring device according to claim 1, characterized in that, The expanded anchor (2) also includes an expanded plate (23) hinged to the lower end of the cylinder (27) via a pivot (24). Multiple expanded plates (23) are arranged in a circle. The expanded plates (23) are connected to the cylinder (27) via a telescopic push rod (25). When the push rod (25) extends, the expanded plate (23) unfolds relative to the cylinder (27). When the push rod (25) retracts, the expanded plate (23) folds relative to the cylinder (27).

6. The seabed anchoring device according to claim 1, characterized in that, The upper end of the cylinder (27) is provided with multiple anchor bodies (21) arranged in a circular pattern.

7. The seabed anchoring device according to claim 1, characterized in that, The bottom of the cylinder (27) is a cone, and the bottom of the cone is provided with a water outlet (26), which is connected to the inside of the cylinder (27).

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