Turtle-shaped gravity anchor

Abstract

The turtle-shaped gravity anchor comprises an anchor body and a plurality of anchor feet installed at the bottom of the anchor body, the anchor body is provided with an arc-shaped arched back, at least one anchor body and an anchor head installed on one side of the anchor body, the shape of the anchor head is formed by gradually shrinking from the joint end of the anchor body to the other end, and an anchor chain installation hole is formed in the back of the anchor body. The anchor chain is connected with the anchor body through the anchor chain mounting hole. The arc-shaped arched back of the anchor body can reduce the impact force of water flow, the bottom surface is designed to be a plane to increase the adhesive force with a mud layer, the anchor foot structure is further inserted into the mud layer to be fixed, the tensile resistance is enhanced, and the effect of a gravity anchor is achieved; when the structure of the anchor head is used for fixing the floating platform, the anchor head can obliquely enter a mud layer and cannot move when an anchor chain is pulled, the position of the floating platform is fixed, and the requirement of the platform for the ocean current direction in ocean current power generation is met; the cement balls and the polyhedrons not only can increase the tensile resistance of the anchor chain, but also can reduce the seawater erosion speed and prolong the service life.

Description

Technical Field

[0001] The invention relates to a turtle-shaped gravity anchor, belonging to the technical field of anchors. Background Art

[0002] Anchor is a kind of fixed device used by ships or floating objects on the water to fix a certain position in the water. There are two main types in the existing technology. One is the ship anchor, which is mainly a hook-shaped anchor rod and anchor tooth structure; the other is the gravity anchor, which is mainly used in offshore floating photovoltaic systems, floating breakwaters, offshore floating production platforms, etc.

[0003] During the long-term research on offshore floating power generation platforms, our company found that the effect of using ship anchors on fixed floating platforms is poor. The platform will move due to wind and waves, which is extremely disadvantageous when a fixed direction is required for ocean current power generation.

[0004] For example, application number 202410556955.9 discloses a sea-sweeping anchor, comprising: an anchor rod, at least two anchor teeth, at least two connecting pins and at least two positioning pins, one end of the anchor rod extends radially outward to form at least two connecting wings, one end of the two anchor teeth are rotatably mounted on the two connecting wings through two connecting pins respectively, and the positioning pins are used to fix the relative position between the anchor teeth and the anchor rod. The invention can effectively hook up obstacles on the seabed, and the sea-sweeping anchor can adjust the deployment angle of the anchor teeth according to different seabed conditions; the sea-sweeping anchor is also convenient for replacing and storing the anchor teeth, which is convenient for transportation and storage, and is conducive to further improving the work efficiency of sea-sweeping operations and reducing the cost of use. However, when targeting floating platforms or large ships, it cannot serve the purpose of mooring in wind and waves.

[0005] As for gravity anchors, application number 202320689999.X discloses a filled gravity anchor, including a gravity anchor body, the gravity anchor body includes a cylinder, a plurality of anti-sinking plates are fixed to the bottom of the outer wall of the cylinder, and the filled gravity anchor is arranged on the seabed in the nearshore section, and is filled with gravel inside. The gravel is in direct contact with the seabed to generate friction that resists the mooring force. A plurality of mooring posts are provided at the bottom of the cylinder of the filled gravity anchor to provide mooring points for construction vessels. Compared with the traditional gravity anchor, the filled gravity anchor has a simple structure and can be installed and removed only by anchor boats in the shallow water and anchoring restricted areas in the nearshore section where large crane ships cannot enter, thereby reducing construction costs and providing mooring points and stable and reliable mooring forces for construction vessels in shallow water conditions. The comprehensive economic benefits are more significant.

[0006] Gravity anchors solve the problems of general ship anchors during use. However, since their structures are mostly cylindrical and fixed by weight, they need to be heavy enough. Otherwise, they will still be pulled and slide on the seabed. Moreover, being too heavy will lead to difficulties in processing and transportation, and make the cost too high.

[0007] It can be seen from the search of the above patent documents and prior art that the above two patents have made technical innovations in two different ways. However, there is still a problem of poor economic practicality, and it is impossible to meet the problem of mooring floating platforms or large ships in the water without excessive weight. Summary of the invention

[0008] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a turtle-shaped gravity anchor, which can meet the function of a heavy anchor but does not need to be too heavy and is economical and practical.

[0009] The purpose of the present invention is to solve the above-mentioned problems in the prior art and to provide a turtle-shaped gravity anchor, comprising an anchor body and a plurality of anchor feet installed at the bottom of the anchor body, wherein the anchor body has an arc-shaped arched back, at least one anchor body and an anchor head installed on one side of the anchor body, the shape of the anchor head is gradually contracted from the end of the anchor body joint to the other end, the anchor chain mounting hole is arranged on the back of the anchor body, and the anchor chain is connected to the anchor body through the anchor chain mounting hole.

[0010] Furthermore, the anchor body is also provided with an anchor tail, which has the same or similar structure as the anchor head and is symmetrically arranged with the anchor body.

[0011] Furthermore, the length of the anchor head or anchor tail is 1 / 2 of the length of the anchor body.

[0012] Furthermore, the bottom surface of the anchor body is a plane, the anchor foot is a cone, and the end of the cone with a larger diameter is connected to the bottom surface of the anchor body.

[0013] Furthermore, the anchor foot is vertically connected to the bottom surface of the anchor body, or the center line of the anchor foot has an inclined angle with the bottom surface of the anchor body.

[0014] Furthermore, the inclination angle is an acute angle toward the anchor head side.

[0015] Furthermore, the anchor chain includes a lying anchor chain and a suspended anchor chain. The lying anchor chain is composed of several metal rings connected in series, and a counterweight is arranged on each metal ring. One end of the suspended anchor chain is connected to the lying anchor chain, and the other end is used to connect to a floating platform or a ship. When connecting to a floating platform, the anchor chain mounting hole is arranged on the back of the anchor body close to the anchor head side, and when connecting to a ship, the anchor chain mounting hole is arranged in the middle position of the back of the anchor body.

[0016] Furthermore, when connected to the floating platform, the metal ring of the lying anchor chain located on one side of the suspended anchor chain is wrapped with cement to form a polyhedron.

[0017] Furthermore, the suspended anchor chain is made of a light and tough material, connected to a surface buoy at the water surface, and a portion of the floating cable on the buoy is connected to the ship as a mooring chain.

[0018] Furthermore, a light emitting component and a transmitting coordinate position component are provided on the buoy.

[0019] The beneficial effects of the present invention compared to the prior art are: 1. The arched back of the anchor body can reduce the impact of water flow. The bottom surface is designed to be flat to increase the adhesion with the mud layer, and the anchor foot structure is further embedded in the mud layer for fixation. Therefore, it can achieve the function of gravity anchor without excessive weight. 2. The structural design of the anchor head allows the anchor head to tilt into the mud layer without moving when the anchor chain is pulled, thus fixing the position of the floating platform and meeting the platform's requirements for the direction of the ocean current in ocean current power generation; 3. The design of cement spheres and polyhedrons on the anchor chain can not only increase the tensile strength of the anchor chain, but also reduce the speed of erosion in seawater and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the anchor structure of Example 1 of the present invention; Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention; In the figure: 1. anchor body, 11. anchor head, 12. anchor body, 13. anchor tail, 14. anchor chain installation hole, 2. anchor foot, 3. anchor chain, 31. lying anchor chain, 32. suspended anchor chain, 33. buoy, 34. floating cable, 4. floating platform. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Example

[0022] like Figure 1 , 2 The turtle-shaped gravity anchor shown comprises an anchor body 1 and 8 to 10 anchor feet 2 installed at the bottom of the anchor body 1. The anchor body 1 has an arc-shaped arched back, an anchor body 12 and an anchor head 11 installed on one side of the anchor body 12. An anchor tail 13 is symmetrically arranged with the anchor body 12. The anchor tail 11 has the same structure as the anchor head 13. The shape of the anchor head 11 is gradually contracted from the joint end of the anchor body 12 to the other end. The anchor chain mounting hole 14 is arranged on the back of the anchor body 1 close to the anchor head side, and the anchor chain 3 is connected to the anchor body 1 through the anchor chain mounting hole 14.

[0023] The bottom surface of the anchor body 1 is a plane, the anchor foot 2 is a cone, the end of the cone with a larger diameter is connected to the bottom surface of the anchor body, the center line of the anchor foot 2 has an inclination angle with the bottom surface of the anchor body 1, and the inclination angle is an acute angle toward the anchor head 11 side.

[0024] The anchor chain 3 includes a lying anchor chain 31 and a suspended anchor chain 32. The lying anchor chain 31 is composed of a plurality of metal rings connected in series, and each metal ring is wrapped with cement. One end of the suspended anchor chain 32 is connected to the lying anchor chain 31, and the other end is used to connect to the floating platform 4.

[0025] The metal ring on the side of the lying anchor chain close to the anchor body is wrapped with cement to form a sphere, and the metal ring on the side close to the suspended anchor chain is wrapped with cement to form a polyhedron.

[0026] This embodiment is a structure used for a floating platform. The anchors are installed at the four corners of the floating platform. Even if there are strong winds and waves on any side, the structural design of the anchor head and anchor foot will only pull the anchor into the mud layer, making it more stable.

[0027] The anchor body is made of steel bars and cement into a turtle-shaped structure. This structure does not need to be too heavy to withstand the pulling force on the floating platform. At the same time, it has the advantages of slow erosion by seawater, long service life, and very low manufacturing cost. Example

[0028] As a turtle-shaped gravity anchor different from the first embodiment, it is used for offshore ships in shallow water near the shore and in areas where anchoring is restricted, and the anchor foot 2 is vertically connected to the bottom surface of the anchor body 1. The length of the anchor head or anchor tail is 1 / 2 of the length of the anchor body.

[0029] One end of the suspended anchor chain 32 is connected to the lying anchor chain 31 , and the other end is used to be connected to the ship. The anchor chain installation hole 14 is arranged in the middle position of the back of the anchor body 1 .

[0030] The suspended anchor chain 32 is made of light and tough material and is connected to the surface buoy 33 at the water surface. A floating cable 34 is arranged on the buoy 33 to be connected to the ship as an anchor chain. The buoy 33 is provided with a light-emitting component and a transmitting coordinate position component for easy finding and use.

[0031] The above embodiments are merely explanations and illustrations of the technical solution of the present invention and cannot be used to limit the protection scope of the technical solution of the present invention. All simple variations based on this solution are within the protection scope of the present invention.

Claims

1. A turtle-shaped gravity anchor, characterized in that: The anchor body comprises an anchor body and a plurality of anchor feet installed at the bottom of the anchor body, wherein the anchor body has an arc-shaped arched back, at least one anchor body and an anchor head installed at one side of the anchor body, the shape of the anchor head is gradually contracted from the anchor body joint end to the other end, the anchor chain installation hole is arranged at the back of the anchor body, and the anchor chain is connected to the anchor body through the anchor chain installation hole.

2. The turtle-shaped gravity anchor according to claim 1, characterized in that: The anchor body is also provided with an anchor tail, which has the same or similar structure as the anchor head and is symmetrically arranged with the anchor body.

3. The turtle-shaped gravity anchor according to claim 2, characterized in that: The length of the anchor head or anchor tail is 1 / 2 of the length of the anchor body.

4. The turtle-shaped gravity anchor according to claim 1, characterized in that: The bottom surface of the anchor body is a plane, the anchor foot is a cone, and the end of the cone with a larger diameter is connected to the bottom surface of the anchor body.

5. The turtle-shaped gravity anchor according to claim 4, characterized in that: The anchor foot is vertically connected to the bottom surface of the anchor body, or the center line of the anchor foot and the bottom surface of the anchor body have an inclined angle.

6. The turtle-shaped gravity anchor according to claim 5, characterized in that: The inclination angle is an acute angle toward the anchor head side.

7. The turtle-shaped gravity anchor according to claim 1, characterized in that: The anchor chain includes a lying anchor chain and a suspended anchor chain. The lying anchor chain is composed of a plurality of metal rings connected in series, and each metal ring is wrapped with cement. One end of the suspended anchor chain is connected to the lying anchor chain, and the other end is used to connect to a floating platform or a ship. When connecting to a floating platform, the anchor chain mounting hole is arranged on the back of the anchor body close to the anchor head side, and when connecting to a ship, the anchor chain mounting hole is arranged in the middle position of the back of the anchor body.

8. The turtle-shaped gravity anchor according to claim 7, characterized in that: When connected to the floating platform, the lying anchor chain is located on a metal ring on the side of the suspended anchor chain and is wrapped with cement to form a polyhedron.

9. The turtle-shaped gravity anchor according to claim 7, characterized in that: The suspended anchor chain is made of light and tough material, and is connected to a surface buoy at the water surface. Part of the floating cable on the buoy is connected to the ship as a mooring chain.

10. The turtle-shaped gravity anchor according to claim 9, characterized in that: The buoy is provided with a light emitting component and a transmitting coordinate position component.

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