A type of seabed anchor

Abstract

This utility model relates to the field of offshore facility fixing technology, and in particular, to a seabed anchor. To solve the technical problem of low production efficiency in existing technologies, this utility model provides a seabed anchor. To achieve the above technical objective, the technical solution adopted by this utility model is as follows: a seabed anchor includes a settling block with several fixing rings on it. The anchor is characterized by having a recessed cavity extending into the interior of the settling block at its bottom, and a through hole communicating with the recessed cavity at its top. Impacting the anchor through the through hole eliminates the need for traditional piling operations, significantly reducing operating costs.

Description

Technical Field

[0001] This utility model relates to the field of marine facility fixing technology, and in particular, to a seabed anchor. Background Technology

[0002] With the development of the near-shore economy, there is a need to construct various facilities in near-shore waters, such as marine aquaculture facilities, offshore platforms for sightseeing and experiences, and floating scenic facilities. All of these facilities require a secure connection to the seabed. Traditionally, this involves driving piles into the seabed using specialized piling vessels. The piles are typically driven to a depth of 3-10 meters, depending on the thickness of the seabed sediment layer. This method is time-consuming and labor-intensive, resulting in low efficiency and a significant consumption of manpower and resources, ultimately reducing production efficiency. Utility Model Content

[0003] To address the technical problem of low production efficiency in existing technologies, this utility model provides a seabed fixed anchor.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows: a seabed fixed anchor, which includes a settling block and a plurality of fixing rings on the settling block, characterized in that: the bottom of the settling block is provided with a recessed cavity extending into the interior of the settling block body, and the top of the settling block is provided with a through hole communicating with the recessed cavity.

[0005] Furthermore, the settlement block is in the shape of a cuboid or cube, and one or both sides of the settlement block have a slope that slopes towards the top.

[0006] Furthermore, the lower half of the settling block is cylindrical, while the upper half gradually narrows in diameter to form a truncated cone shape.

[0007] Furthermore, the recessed cavity is shaped like a truncated cone, with the cavity diameter gradually decreasing from the bottom upwards.

[0008] Furthermore, the depth of the recessed cavity is consistent with the height of the lower cylinder.

[0009] Furthermore, an impact tube clutch pin is provided on the settling block next to the through hole.

[0010] A method for securing a seabed anchor includes the following steps:

[0011] 1) Connect and secure one end of the cable that needs to be fixed to the fixing ring on the settlement block;

[0012] 2) Insert one end of the high-pressure pipe into the recessed cavity through the through hole, and connect the pipe body of the high-pressure pipe to the clutch pin;

[0013] 3) The settling block is lowered to the seabed, and the cable and high-pressure pipe are lowered simultaneously, so that the bottom surface of the settling block with the concave cavity sits steadily on the seabed.

[0014] 4) Connect the end of the high-pressure pipe that is above the water surface to the high-pressure pump;

[0015] 5) Start the high-pressure pump and impact the mud and sand in the depression cavity through the high-pressure pipe. The mud and sand in the depression cavity will return outward from the periphery of the depression cavity opening.

[0016] 6) As the sediment is returned, the sediment block sinks into the depths of the seabed until it reaches the designed depth.

[0017] The beneficial effects of this invention are as follows: 1. The narrow-at-the-top and wide-at-the-bottom structure of the settling block allows it to sit stably on the seabed sediment, preventing it from moving due to wave impact or pulling by the upper rope. 2. The recessed cavity at the bottom of the settling block acts like a suction cup after it is submerged in the seabed, effectively improving its stability. 3. Impact operations can be performed through the through holes in the settling block, eliminating the need for traditional piling steps and significantly reducing operating costs. Attached Figure Description

[0018] Figure 1 This is a top view of the structure of the seabed fixed anchor of the first embodiment.

[0019] Figure 2 for Figure 1 Sectional view of the structure along the AA direction.

[0020] Figure 3 for Figure 1 Sectional view of the structure along the BB direction.

[0021] Figure 4 This is a top view of the structure of the seabed fixed anchor in the second embodiment.

[0022] Figure 5 for Figure 4 Sectional view of the structure along the AA direction.

[0023] Figure 6 for Figure 4 Sectional view of the structure along the BB direction.

[0024] Figure 7 This is a top view of the structure of the seabed fixed anchor in the third embodiment.

[0025] Figure 8 for Figure 7 Sectional view of the structure along the AA direction. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] As attached Figure 1-3 As shown, a seabed anchor includes a settling block 1 made of concrete. The settling block 1 is rectangular in shape, with a length, width and height of 1400mm, 1000mm and 800mm respectively, a volume of 0.835m³ and a weight of about 2T.

[0029] As attached Figure 1-2 As shown, one side of the settlement block 1 has a slope 3 that slopes towards the top. The slope 3 has an inclination angle between 30 and 45° and a bottom height between 300 and 400 mm.

[0030] As attached Figure 1-2 As shown, while the settlement block 1 is being poured, several fixing rings 2 are simultaneously poured on the settlement block 1 to facilitate the hoisting of the settlement block 1 and the subsequent fixing of other devices on the settlement block 1.

[0031] like Figure 1-3 As shown, the bottom of the settlement block has a recessed cavity 4 extending into the interior of the settlement block. The recessed cavity 4 is truncated cone in shape, and the diameter of the cavity gradually narrows from the bottom to the top. The depth of the recessed cavity 4 is basically the same as the height of the settlement block below the slope 3.

[0032] As attached Figure 1-2 As shown, a through hole 5 communicating with the recessed cavity 4 is provided at the top of the settling block 1.

[0033] Example 2

[0034] The seabed anchor provided in this embodiment is a further improvement on the one in Embodiment 1.

[0035] As attached Figure 4-6 As shown, a seabed anchor includes a settling block 1 made of concrete. The settling block 1 is rectangular in shape, and its volume and weight are basically consistent with those of Example 1.

[0036] As attached Figure 4-5 As shown, the two sides of the settlement block 1 are respectively equipped with slopes 3 that slope towards the top. The slope angle of the slope 3 is between 30-45° and the height of the bottom of the slope is between 300-400mm.

[0037] As attached Figure 4-5 As shown, while the settlement block 1 is being poured, several fixing rings 2 are simultaneously poured on the settlement block 1 to facilitate the hoisting of the settlement block 1 and the subsequent fixing of other devices on the settlement block 1.

[0038] like Figure 4-6As shown, the bottom of the settlement block has a recessed cavity 4 extending into the interior of the settlement block. The recessed cavity 4 is truncated cone in shape, and the diameter of the cavity gradually narrows from the bottom to the top. The depth of the recessed cavity 4 is basically the same as the height of the settlement block below the slope 3.

[0039] As attached Figure 4-5 As shown, a through hole 5 communicating with the recessed cavity 4 is provided at the top of the settling block 1.

[0040] The method for fixing the seabed anchor described in Embodiments 1 and 2 above includes the following steps:

[0041] 1) First, connect and fix one end of the cable that needs to be fixed to the fixing ring 2 on the settlement block;

[0042] 2) Insert one end of the high-pressure pipe into the recessed cavity 4 through the through hole 5;

[0043] 3) Determine the construction area, and place the settlement block 1 provided in Example 1 on the outermost side of the area where the facility needs to be fixed, with the slope facing the interior of the area where the facility needs to be fixed;

[0044] 4) Within the area requiring fixed facilities, the settling blocks 1 provided in Example 2 are sequentially settling on the seabed in rows and columns;

[0045] 5) During the settling process, the cables and high-pressure pipes descend synchronously, so that the bottom surface of the settling block with the recessed cavity 4 sits stably on the seabed.

[0046] 4) Connect the end of the high-pressure pipe that is above the water surface to the high-pressure pump;

[0047] 5) Start the high-pressure pump and impact the mud and sand in the depression 4 through the high-pressure pipe. The mud and sand in the depression 4 will return outward from the periphery of the opening of the depression 4.

[0048] 6) As the sediment is returned, the sediment block sinks to the depth of the seabed until it reaches the designed depth, which is generally determined by contact with hard rock seabed.

[0049] 7) The high-pressure pipe is retrieved from the seabed, while one end of the cable extends out of the sea surface to be used for the construction and fixation of various facilities.

[0050] Example 3

[0051] This embodiment further improves upon the seabed anchor provided in Embodiments 1 and 2.

[0052] As attached Figure 7 and appendix Figure 8 As shown, a seabed anchor includes a settling block 1 made of concrete. The lower half of the settling block 1 is cylindrical, and the upper half gradually narrows in diameter to form a truncated cone shape.

[0053] The lower cylinder has a diameter of 1200mm, the top diameter of the truncated cone is 800mm, the overall height is about 800mm, of which the lower cylinder is 300mm high, the truncated cone is 500mm high, and the weight is about 2T.

[0054] As attached Figure 7-8 As shown, while the settlement block 1 is being poured, several fixing rings 2 are simultaneously poured on the settlement block 1 to facilitate the hoisting of the settlement block 1 and the subsequent fixing of other devices on the settlement block 1.

[0055] like Figure 1-3 As shown, the bottom of the settling block has a recessed cavity 4 extending into the interior of the settling block. The recessed cavity 4 is truncated cone in shape, and the diameter of the cavity gradually narrows from the bottom to the top. The depth of the recessed cavity 4 is basically the same as the height of the lower half of the cylindrical shape of the settling block 1.

[0056] As attached Figure 1-2 As shown, a through hole 5 communicating with the recessed cavity 4 is provided at the top of the settling block 1.

[0057] The method for fixing the seabed anchor provided in this embodiment is consistent with the steps provided in Embodiment 1 or Embodiment 2.

Claims

1. A seabed fixing anchor comprising a sinker block, a plurality of fixing rings being provided on the sinker block, characterized in that: The bottom of the settling block has a recessed cavity extending into the interior of the settling block, and the top of the settling block has a through hole communicating with the recessed cavity.

2. A subsea fixed anchor according to claim 1, characterised in that: The settlement block is in the shape of a cuboid or cube, and one or both sides of the settlement block have a slope that slopes towards the top.

3. An anchor according to claim 1, wherein: The lower half of the settling block is cylindrical, while the upper half gradually narrows in diameter to form a truncated cone shape.

4. An anchor according to claim 1, wherein: The recessed cavity is shaped like a truncated cone, with its diameter gradually decreasing from the bottom upwards.

5. A seabed anchor according to claim 1 or 4, characterized in that: The depth of the recessed cavity is the same as the height of the lower cylinder.

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