Gravity anchor

Abstract

The invention relates to the technical field of marine equipment, and discloses a gravity anchor which comprises an anchor body, an anchor rod, a connecting rod, a connecting rod, a connecting rod and a connecting rod, the anchor body is provided with a mounting cavity, and an opening is formed in the side wall of the anchor body and communicates with the mounting cavity; the lifting ring assembly is arranged on the anchor body; the anchor plate assembly is arranged on the bottom surface of the anchor body and extends downwards; the hook arm assembly is contained in the mounting cavity, the hook arm assembly comprises a driving part and a hook arm, the power output end of the driving part is connected with the hook arm, the hook arm extends out of the opening, and the driving part is used for driving the hook arm to rotate so as to hook the seabed. The gravity anchor provided by the invention not only can anchor depending on the self weight of the anchor body, but also can be embedded into a seabed through the anchor plate, and the hook arm assembly hooks the seabed to improve the translation resistance of the anchor body, so that the anchoring is safe and stable.

Description

Technical Field

[0001] The invention relates to the technical field of marine equipment, in particular to a gravity anchor. Background Art

[0002] The mooring system is crucial for surface facilities and floating platforms. The selection of a suitable mooring system requires consideration of economy, stability, safety and reliability. In aquaculture mooring systems, the main anchor block structure currently used is the gravity anchor block.

[0003] Gravity anchor blocks rely on their own gravity and the friction coefficient of the seabed soil to generate grip, but the disadvantage is that their grip is only 0.25 to 0.4 times their own weight, and they are highly dependent on their own weight and the friction coefficient of the soil. Therefore, gravity anchors are easily affected by undercurrents on the seabed or by the pull of the floating platform, resulting in translational movement, unstable anchoring, and easily leading to safety problems for surface facilities. Summary of the invention

[0004] The purpose of the present invention is to provide a gravity anchor which can not only anchor by its own weight but also increase the anti-translation ability of the anchor by embedding the anchor plate into the seabed and hooking the seabed with the hook arm assembly, so that the anchoring is safe and stable.

[0005] In order to achieve the above object, the present invention provides a gravity anchor, comprising:

[0006] An anchor body, wherein the anchor body has a mounting cavity, and a side wall of the anchor body is provided with an opening, wherein the opening is in communication with the mounting cavity;

[0007] A lifting ring assembly, wherein the lifting ring assembly is arranged on the anchor body;

[0008] An anchor plate assembly, the anchor plate assembly is arranged on the bottom surface of the anchor body and extends downward;

[0009] A hook arm assembly is accommodated in the installation cavity, the hook arm assembly includes a driving part and a hook arm, the power output end of the driving part is connected to the hook arm, the hook arm extends out of the opening, and the driving part is used to drive the hook arm to rotate so as to hook the mud bed on the seabed.

[0010] Furthermore, the hook arm includes a hook portion, which is arc-shaped. When observed from the side of the hook arm assembly, the hook portion has a first arc surface and a second arc surface. The first arc surface is located on the outside of the second arc surface, and the first arc surface and the second arc surface are smoothly connected at the end of the hook portion.

[0011] Further, the anchor body comprises a first main body, the first main body is an octagonal prism, one side wall of the first main body in the first direction and two side walls of the first main body in the second direction are respectively provided with the opening, the first main body has three installation cavities, the three openings are connected with the three installation cavities in a one-to-one correspondence, and the hook arm assembly is installed in each installation cavity;

[0012] The first direction and the second direction are perpendicular to each other.

[0013] Further, the anchor plate assembly includes a first plate body, a second plate body, a third plate body and a fourth plate body. When observed from the bottom surface of the first main body, the first main body has a first side, a second side and a third side. The first side and the second side are two opposite edges of the first main body in the first direction, and the third side is an adjacent side of the first side. One end of the fourth plate body is arranged at the midpoint of the first side, and the other end of the fourth plate body is arranged at the vertex of the second side. One end of the third plate body is arranged at the vertex of the third side away from the first side. The other end of the third plate body is connected to the other end of the fourth plate body. The first plate body and the third plate body are parallel to each other, and the second plate body and the fourth plate body are parallel to each other. One end of the first plate body is connected to one end of the second plate body. The first plate body and the second plate body are both arranged between the third plate body and the fourth plate body. The first plate body, the second plate body, the third plate body, the fourth plate body and the bottom surface of the first main body are surrounded to define a seabed embedding groove, wherein one of the mounting chambers is arranged on the side wall where the second side of the first main body is located.

[0014] Furthermore, the gravity anchor also includes two anchor plate assemblies, and the two anchor plate assemblies are symmetrically arranged with the line connecting the midpoint of the first side and the midpoint of the second side as the symmetry axis. A cavity is provided between the two fourth plates, and a plurality of embedded parts are provided in the cavity. The embedded parts are evenly spaced and installed on the fourth plate body. An embedded rod is provided on the power output end of the embedded part, and the embedded rod can pass through the fourth plate body and be slidably inserted into the seabed groove.

[0015] Furthermore, the lifting ring assembly includes a first lifting ring and a second lifting ring, the first lifting ring and the second lifting ring are both U-shaped lifting rings, both ends of the first lifting ring and the second lifting ring are connected to the first body, and when viewed along the third direction, the first lifting ring and the second lifting ring are arranged in a cross shape;

[0016] The first direction, the second direction, and the third direction are perpendicular to each other.

[0017] Furthermore, the anchor body also includes a second body, which is arranged on the top surface of the first body, the ends of the first lifting ring and the second lifting ring pass through the second body and are connected to the first body, the second body is an octagonal pyramid, and the inclination angle of the inclined surface of the second body is 30°-45°.

[0018] Furthermore, the anchor body includes a steel cage, which is extended along the third direction and arranged inside the first main body and the second main body, and the steel cage is arranged around the outer periphery of the lifting ring assembly.

[0019] Compared with the prior art, a gravity anchor according to an embodiment of the present invention has the following beneficial effects: the anchor body sinks to the seabed by its own weight, the anchor plate assembly is inserted into the seabed along the third direction, and then the driving part of the hook arm assembly drives the hook arm to hook the seabed, the anchor plate assembly initially gives the anchor body the ability to resist horizontal movement, the hook arm is inserted into the seabed, and the hook arm assembly further gives the anchor body the ability to resist horizontal movement, and the anchoring is safe and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a cross-sectional view of a gravity anchor according to an embodiment of the present invention;

[0021] Figure 2 2 is a bottom view of a gravity anchor according to an embodiment of the present invention.

[0022] In the figure, 1, anchor body; 101, first body; 1011, first side; 1012, second side; 1013, third side; 102, second body; 103, installation cavity; 104, opening;

[0023] 2. Lifting ring assembly; 201. First lifting ring; 202. Second lifting ring;

[0024] 3. Anchor plate assembly; 301. First plate body; 302. Second plate body; 303. Third plate body; 304. Fourth plate body; 305. Seabed embedded groove; 306. Receptacle; 307. Embedded part; 308. Embedded rod;

[0025] 4. Hook arm assembly; 401. driving part; 402. hook arm; 4021. hook connection part; 40211. first arc surface; 40212. second arc surface; 403. mounting block;

[0026] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal" and the like used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only used to facilitate the description of the present invention and simplify the description, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0029] In the description of the present invention, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0031] The technical solution of the present invention is further described below in conjunction with embodiments and drawings.

[0032] like Figure 1 As shown, a gravity anchor according to an embodiment of the present invention comprises:

[0033] An anchor body 1, the anchor body 1 has a mounting cavity 103, and a side wall of the anchor body 1 is provided with an opening 104, the opening 104 is connected to the mounting cavity 103;

[0034] A lifting ring assembly 2, wherein the lifting ring assembly 2 is arranged on the anchor body 1;

[0035] An anchor plate assembly 3, which is arranged on the bottom surface of the anchor body 1 and extends downward;

[0036] The hook arm assembly 4 is accommodated in the installation cavity 103. The hook arm assembly 4 includes a driving part 401 and a hook arm 402. The power output end of the driving part 401 is connected to the hook arm 402. The hook arm 402 extends out of the opening 104. The driving part 401 is used to drive the hook arm 402 to rotate to hook the mud bed on the seabed.

[0037] Based on the above technical solution, the anchor body 1 sinks to the seabed by its own weight, the anchor plate assembly 3 is inserted into the seabed along the third direction Z, and then the driving part 401 of the hook arm assembly 4 drives the hook arm 402 to hook the seabed, the anchor plate assembly 3 initially gives the anchor body 1 the ability to resist horizontal movement, the hook arm 402 is inserted into the seabed, and the hook arm assembly 4 further gives the anchor body 1 the ability to resist horizontal movement, and the anchoring is safe and stable.

[0038] Specifically, the hook arm assembly 4 also includes a mounting block 403, one end of the hook arm 402 is rotatably connected to the mounting block 403, the driving part 401 is preferably an electric cylinder, one end of the driving part 401 is hinged to the mounting block 403, the power output end of the driving part 401 is hinged to the hook arm 402, and the mounting block 403 is installed in the mounting cavity 103.

[0039] Preferably, the hook arm 402 includes a hook portion 4021, which is arc-shaped. When observed from the side of the hook arm assembly 4, the hook portion 4021 has a first arc surface 40211 and a second arc surface 40212. The first arc surface 40211 is located on the outside of the second arc surface 40212, and the first arc surface 40211 and the second arc surface 40212 are smoothly connected at the end of the hook portion 4021.

[0040] The end of the hook portion 4021 is a first arc surface 40211 and a second arc surface 40212 that are smoothly connected, which can ensure that the hook portion 4021 can be more easily inserted into the seabed and can ensure the integrity of the seabed, avoiding damage to the seabed and causing the hook arm 402 to fail.

[0041] Preferably, if Figure 2 As shown, the anchor body 1 includes a first main body 101, the first main body 101 is an octagonal prism, one side wall of the first main body 101 in the first direction X and the two side walls of the first main body 101 in the second direction Y are respectively provided with openings 104, the first main body 101 has three installation cavities 103, the three openings 104 are connected with the three installation cavities 103 in a one-to-one correspondence, and a hook arm assembly 4 is installed in each installation cavity 103;

[0042] The first direction X and the second direction Y are perpendicular to each other.

[0043] A hook arm assembly 4 is provided on one of the side walls in the first direction X of the first main body 101, and a hook arm assembly 4 is provided on both side walls in the second direction Y of the first main body 101. The three hook arm assemblies 4 hook the seabed in multiple directions, thereby ensuring the ability to resist horizontal movement in all directions and stable anchoring.

[0044] More preferably, the anchor plate assembly 3 includes a first plate body 301, a second plate body 302, a third plate body 303 and a fourth plate body 304. When viewed from the bottom surface of the first body 101, the first body 101 has a first side 1011, a second side 1012 and a third side 1013. The first side 1011 and the second side 1012 are two opposite edges of the first body 101 in the first direction X. The third side 1013 is an adjacent side of the first side 1011. One end of the fourth plate body 304 is disposed at the midpoint of the first side 1011, the other end of the fourth plate body 304 is disposed at the vertex of the second side 1012, and one end of the third plate body 303 is disposed at the third side 1013 away from the first side 1011. 011, the other end of the third plate body 303 is connected to the other end of the fourth plate body 304, the first plate body 301 and the third plate body 303 are parallel to each other, the second plate body 302 and the fourth plate body 304 are parallel to each other, one end of the first plate body 301 is connected to one end of the second plate body 302, the first plate body 301 and the second plate body 302 are both arranged between the third plate body 303 and the fourth plate body 304, the first plate body 301, the second plate body 302, the third plate body 303, the fourth plate body 304 and the bottom surface of the first body 101 are surrounded to define a seabed embedded groove 305, wherein an installation cavity 103 is arranged on the side wall where the second side 1012 of the first body 101 is located.

[0045] The specific usage of this gravity anchor is as follows: when lowering the gravity anchor to the seabed, the first side 1011 of the anchor body 1 is first brought into contact with the seabed, and the soil of the seabed enters into the seabed groove 305 from the grooves of the seabed groove 305 of the first side 1011 and the third side 1013, ensuring that the soil entering the seabed groove 305 and between the first plate body 301 and the second plate body 302 is tight. At this time, the seabed is hooked and secured by the hook arms 402 of the three hook arm assemblies 4.

[0046] More preferably, the gravity anchor also includes two anchor plate assemblies 3, and the two anchor plate assemblies 3 are symmetrically arranged with the line connecting the midpoint of the first side 1011 and the midpoint of the second side 1012 as the symmetry axis. A cavity 306 is provided between the two fourth plates 304, and a plurality of embedded parts 307 are provided in the cavity 306. The embedded parts 307 are evenly spaced and installed on the fourth plate 304. An embedded rod 308 is provided on the power output end of the embedded part 307, and the embedded rod 308 can pass through the fourth plate 304 and be slidably inserted into the seabed groove 305.

[0047] Specifically, the embedded part 307 is preferably an electric cylinder.

[0048] Specifically, when the seabed groove 305 is not stably embedded in the seabed soil, the embedding rod 308 does not pass through the fourth plate body 304 and is inserted into the seabed groove 305. After the seabed soil enters the seabed groove 305, the embedding part 307 drives the embedding rod 308 to pass through the fourth plate body 304 and extend into the seabed groove 305, and is inserted into the seabed soil, thereby increasing the connection strength between the seabed and the gravity anchor, ensuring the stability of the anchoring, reducing the possibility of slippage of the gravity anchor in all directions, improving the ability of the gravity anchor to resist horizontal movement, and ensuring the stability of the anchoring.

[0049] More preferably, the lifting ring assembly 2 includes a first lifting ring 201 and a second lifting ring 202, both of which are U-shaped lifting rings, and both ends of the first lifting ring 201 and the second lifting ring 202 are connected to the first body 101, and when viewed along the third direction Z, the first lifting ring 201 and the second lifting ring 202 are arranged in a cross shape;

[0050] The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0051] Specifically, the first hanging ring 201 is arranged above the second hanging ring 202 , and the top of the second hanging ring 202 is connected to the U-shaped recess of the first hanging ring 201 .

[0052] When the hook of the crane is hoisting the gravity anchor, two hooks can be used to hook the second lifting ring 202, and the two lifting rings are separated by the first lifting ring 201. The first lifting ring 201 has the effect of limiting the rotation of the hook of the crane to prevent relative rotation between the hook of the crane and the gravity anchor. Since the gravity anchor is very heavy, safety problems are prone to occur. In addition, when two hooks are used to hoist the gravity anchor, the force on the hooks is evened out, and the hoisting is more stable and safe.

[0053] More preferably, the anchor body 1 further comprises a second body 102, the second body 102 is arranged on the top surface of the first body 101, the ends of the first lifting ring 201 and the second lifting ring 202 pass through the second body 102 and are connected to the first body 101, the second body 102 is an octagonal pyramid, and the inclination angle of the inclined surface of the second body 102 is 30°-45°. The inclination angle of the second body 102 is preferably 40°. When the inclination angle of the second body 102 is less than 30°, the thickness of the second body 102 is insufficient. When the crane hoists the gravity anchor, the connection performance of the lifting ring assembly 2 and the anchor body 1 is weak, and the anchor body 1 structure is easily damaged, and the lifting ring assembly 2 is easily disengaged, which is easy to cause a safety accident; when the inclination angle of the second body 102 is greater than 45°, the longitudinal cross-sectional area of ​​the anchor body 1 is large, and it is easy to be affected by the undercurrent on the seabed, resulting in the phenomenon of tilting and offsetting of the gravity anchor, which is not conducive to placing and anchoring.

[0054] More preferably, the anchor body 1 includes a steel cage, which is extended along the third direction Z and arranged inside the first body 101 and the second body 102 , and is arranged around the outer periphery of the lifting ring assembly 2 , so as to ensure the structural strength of the anchor body 1 .

[0055] In summary, an embodiment of the present invention provides a gravity anchor, wherein the anchor body 1 sinks to the seabed by its own weight, the anchor plate assembly 3 is inserted into the seabed along the third direction Z, and then the driving part 401 of the hook arm assembly 4 drives the hook arm 402 to hook the seabed, the anchor plate assembly 3 initially gives the anchor body 1 the ability to resist horizontal movement, the hook arm 402 is inserted into the seabed, and the hook arm assembly 4 further gives the anchor body 1 the ability to resist horizontal movement, and the anchoring is safe and stable.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A gravity anchor, characterized in that: include: An anchor body (1), the anchor body (1) having a mounting cavity (103), a side wall of the anchor body (1) being provided with an opening (104), the opening (104) being in communication with the mounting cavity (103); A lifting ring assembly (2), wherein the lifting ring assembly (2) is arranged on the anchor body (1); An anchor plate assembly (3), the anchor plate assembly (3) being arranged on the bottom surface of the anchor body (1) and extending downward; A hook arm assembly (4), the hook arm assembly (4) is accommodated in the installation cavity (103), the hook arm assembly (4) comprises a driving part (401) and a hook arm (402), the power output end of the driving part (401) is connected to the hook arm (402), the hook arm (402) extends out of the opening (104), and the driving part (401) is used to drive the hook arm (402) to rotate so as to hook the seabed.

2. The gravity anchor according to claim 1, characterized in that: The hook arm (402) includes a hook portion (4021), and the hook portion (4021) is arc-shaped. When observed from the side of the hook arm assembly (4), the hook portion (4021) has a first arc surface (40211) and a second arc surface (40212). The first arc surface (40211) is located on the outside of the second arc surface (40212), and the first arc surface (40211) and the second arc surface (40212) are smoothly connected at the end of the hook portion (4021).

3. The gravity anchor according to claim 1, characterized in that: The anchor body (1) comprises a first main body (101), the first main body (101) is in the form of an octagonal prism, one side wall of the first main body (101) in the first direction (X) and two side walls of the first main body (101) in the second direction (Y) are respectively provided with the opening (104), the first main body (101) has three installation cavities (103), the three openings (104) are connected to the three installation cavities (103) in a one-to-one correspondence, and each installation cavity (103) is provided with the hook arm assembly (4); The first direction (X) and the second direction (Y) are perpendicular to each other.

4. The gravity anchor according to claim 3, characterized in that: The anchor plate assembly (3) comprises a first plate body (301), a second plate body (302), a third plate body (303) and a fourth plate body (304); when viewed from the bottom surface of the first body (101), the first body (101) has a first side (1011), a second side (1012) and a third side (1013); the first side (1011) and the second side (1012) are two opposite edges of the first body (101) in the first direction (X); the third side (1013) is an adjacent side of the first side (1011); one end of the fourth plate body (304) is arranged at the midpoint of the first side (1011); the other end of the fourth plate body (304) is arranged at the vertex of the second side (1012); one end of the third plate body (303) is arranged at the third side (1013) away from the first side (1011); The other end of the third plate body (303) is connected to the other end of the fourth plate body (304) at the vertex, the first plate body (301) and the third plate body (303) are parallel to each other, the second plate body (302) and the fourth plate body (304) are parallel to each other, one end of the first plate body (301) is connected to one end of the second plate body (302), the first plate body (301) and the second plate body (302) are both arranged between the third plate body (303) and the fourth plate body (304), the first plate body (301), the second plate body (302), the third plate body (303), the fourth plate body (304) and the bottom surface of the first main body (101) are surrounded to form a seabed embedded groove (305), wherein one of the installation cavities (103) is arranged on the side wall where the second edge (1012) of the first main body (101) is located.

5. The gravity anchor according to claim 4, characterized in that: It also comprises two anchor plate assemblies (3), the two anchor plate assemblies (3) are symmetrically arranged with the line connecting the midpoint of the first side (1011) and the midpoint of the second side (1012) as the symmetry axis, a cavity (306) is provided between the two fourth plate bodies (304), a plurality of embedded parts (307) are provided in the cavity (306), the embedded parts (307) are evenly spaced and installed on the fourth plate body (304), an embedded rod (308) is provided on the power output end of the embedded part (307), and the embedded rod (308) can pass through the fourth plate body (304) and be slidably inserted into the seabed embedded groove (305).

6. The gravity anchor according to claim 5, characterized in that: The lifting ring assembly (2) comprises a first lifting ring (201) and a second lifting ring (202), wherein the first lifting ring (201) and the second lifting ring (202) are both U-shaped lifting rings, both ends of the first lifting ring (201) and the second lifting ring (202) are connected to the first main body (101), and when viewed along a third direction (Z), the first lifting ring (201) and the second lifting ring (202) are arranged in a cross shape; The first direction (X), the second direction (Y), and the third direction (Z) are perpendicular to each other.

7. The gravity anchor according to claim 6, characterized in that: The anchor body (1) further comprises a second body (102), wherein the second body (102) is arranged on the top surface of the first body (101), the ends of the first lifting ring (201) and the second lifting ring (202) pass through the second body (102) and are connected to the first body (101), the second body (102) is an octagonal pyramid, and the inclination angle of the inclined surface of the second body (102) is 30°-45°.

8. The gravity anchor according to claim 7, characterized in that: The anchor body (1) comprises a steel cage, which is extended along the third direction (Z) and arranged inside the first main body (101) and the second main body (102), and the steel cage is arranged around the outer periphery of the lifting ring assembly (2).

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