Dismounting and placing device for annular anchor

Abstract

The annular anchor comprises an annular cylinder and a lifting lug, the lifting lug is connected to the radial outer side of the annular cylinder and suitable for providing a connecting point for an anchor chain, the detaching and placing device comprises a suction cylinder, a suction cavity with an opening is defined in the suction cylinder, and the inner diameter of the suction cavity is larger than the outer diameter of the annular cylinder. An avoiding hole extending in the axial direction of the suction barrel is formed in the side wall of the suction barrel, the avoiding hole penetrates through the surface of one axial end of the suction barrel, and the lifting lug is suitable for being arranged in the avoiding hole in a penetrating mode; a through hole communicated with the suction cavity is formed in the top of the suction cylinder. According to the detaching and placing device, the sealing effect of the suction cavity can be improved, the change speed of the pressure intensity in the suction barrel is high, the lifting speed of the suction barrel is improved, the suction barrel can rapidly place the annular anchor into a seabed and rapidly pull the annular anchor out of the seabed, and the detaching and placing efficiency of the detaching and placing device is improved; and the reliability of the dismounting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore infrastructure engineering, in particular to a dismantling and releasing device for an annular anchor. Background Art

[0002] In the related art, the scheme of removing the annular anchor by arranging the suction cylinder and the annular anchor up and down has the risk of detachment between the suction cylinder and the annular anchor. When the suction cylinder and the annular anchor are disconnected, a larger gap exists between the suction cylinder and the annular anchor, and the exchange channel between the fluid in the suction chamber and the external fluid increases. This will cause the exchange speed between the fluid in the suction chamber and the external fluid to be faster, resulting in a decrease in the efficiency of changing the pressure in the suction chamber by injecting or extracting the fluid, and even causing the suction cylinder to fail, that is, causing the lifting speed of the suction cylinder in the seabed to be reduced, and even causing the suction cylinder to be unable to be reliably lifted and lowered in the seabed, and the reliability of the scheme is poor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a dismantling device, improve the sealing effect of the suction chamber, make the pressure change speed in the suction cylinder faster, increase the sinking speed of the suction cylinder, increase the rising speed of the suction cylinder, so that the suction cylinder can quickly place the annular anchor in the seabed, so that the suction cylinder can quickly pull the annular anchor out of the seabed, improve the dismantling efficiency of the dismantling device, and improve the reliability of the dismantling device.

[0004] According to the embodiment of the utility model, the dismantling device of the annular anchor is used for dismantling the annular anchor, the annular anchor comprises an annular tube and a lifting ear, the lifting ear is connected to the radial outer side of the annular tube and is suitable for providing a connection point for the anchor chain, the dismantling device comprises: a suction tube, the interior of the suction tube defines a suction cavity with an opening, the inner diameter of the suction cavity is larger than the outer diameter of the annular tube, a avoidance hole is provided on the side wall of the suction tube, the avoidance hole extends along the axial direction of the suction tube and passes through the surface of one axial end of the suction tube, the lifting ear is suitable for being inserted into the avoidance hole; a through hole is provided on the top of the suction tube, and the through hole is connected to the suction cavity.

[0005] According to the annular anchor releaser of the utility model, by providing an avoidance hole for avoiding the annular anchor, the annular anchor can be built into the suction chamber, the gap between the annular anchor and the suction cylinder is reduced, the sealing effect of the suction chamber is improved, the pressure in the suction cylinder changes faster, the sinking speed of the suction cylinder is increased, the rising speed of the suction cylinder is increased, the suction cylinder can quickly place the annular anchor on the seabed, and the suction cylinder can quickly pull the annular anchor out of the seabed, thereby improving the release efficiency of the releaser and improving the reliability of the releaser.

[0006] According to some embodiments of the present invention, a stop ring is provided inside the suction chamber, a radial outer surface of the stop ring is connected to the inner wall of the suction chamber, and an upper surface of the annular cylinder is suitable for abutting against the stop ring.

[0007] According to some embodiments of the present invention, the stop ring is inclined inwardly on the surface of the opening toward the suction chamber; and / or, the width of the stop ring in the radial direction gradually decreases in the direction toward the opening of the suction chamber; and / or, the thickness of the stop ring in the axial direction gradually decreases in the direction toward the center axis of the suction cylinder.

[0008] According to some embodiments of the utility model, a first sealing member is provided on a surface of the stop ring away from the through hole, and the annular tube and the stop ring are suitable for compressing the first sealing member to deform when stopping.

[0009] According to some optional embodiments of the utility model, a plurality of lifting ears are provided on the outer surface of the suction cylinder, and each of the lifting ears has a lifting hole for connecting the anchor chain; a plurality of the lifting ears are provided on the radial outer surface of the suction cylinder and are arranged at intervals along the axial direction of the suction cylinder; and / or a plurality of the lifting ears are provided on the top surface of the suction cylinder and are arranged at intervals along the radial direction of the suction cylinder.

[0010] According to some optional embodiments of the utility model, a reel is provided on the outer surface of the suction cylinder, and the reel includes a reeling bracket and a rotating shaft, the reeling bracket is connected to the suction cylinder, the rotating shaft is transmissively arranged on the reeling bracket, and the anchor chain is suitable for being connected to the rotating shaft.

[0011] According to some embodiments of the utility model, a second sealing member is provided on the hole wall of the avoidance hole, and the two surfaces of the avoidance hole in the circumferential direction of the suction cylinder are respectively a first surface and a second surface, a second sealing member is provided on the first surface, and a third sealing member is provided on the second surface, and the second seal and the third seal stop and press each other at two parts in the circumferential direction of the suction cylinder, and the lifting ear is suitable for being passed between the second seal and the third seal to compress the two to deform.

[0012] According to some embodiments of the utility model, the disassembler also includes: a plurality of positioning guide arms, one end of the positioning guide arm is on the inner wall of the suction chamber, and the connection point between the positioning guide arm and the suction cylinder is away from the avoidance hole in the axial direction of the suction cylinder, the other end of the positioning guide arm extends toward the center of the annular cylinder and extends out of the suction chamber, and the other end of the positioning guide arm is suitable for extending into the annular cylinder.

[0013] According to some embodiments of the present invention, in the direction toward the opening of the suction chamber, the width of the avoidance hole in the circumferential direction of the suction cylinder gradually increases.

[0014] According to some embodiments of the present invention, the disassembler further includes: a fluid pump, wherein an output end of the fluid pump is connected to the through hole to inject fluid into the suction chamber and / or to suck out the fluid in the suction chamber.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of a dismantling device and a ring anchor connected together according to some embodiments of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective when the releaser is connected to the annular anchor;

[0019] Figure 3 yes Figure 1 A schematic diagram of a disassembler in FIG.

[0020] Figure 4 yes Figure 1 A schematic diagram of a disassembler in FIG.

[0021] Figure 5 yes Figure 1 Top view of the ring anchor in FIG.

[0022] Reference numerals:

[0023] 100. Dismantler;

[0024] 1. Suction cylinder; 11. Suction chamber; 12. Cylinder body; 121. Avoidance hole; 13. Cover body; 131. Through hole;

[0025] 2. Fluid pump;

[0026] 3. Lifting ears;

[0027] 400, annular anchor;

[0028] 5. Annular cylinder; 6. Lifting lug; 7. Wing plate;

[0029] 800. Anchor chain. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes a release device 100 for a ring anchor 400 according to an embodiment of the present invention with reference to the accompanying drawings.

[0032] Reference Figure 1-Figure 5 According to the first embodiment of the utility model, the dismantling device 100 of the annular anchor 400 is used to dismantle the annular anchor 400, referring to Figure 4 and Figure 5 The annular anchor 400 includes an annular tube 5 and a lifting lug 6, the lifting lug 6 is connected to the radially outer side of the annular tube 5, and the lifting lug 6 is suitable for providing a connection point for the anchor chain 800. For example, the annular anchor 400 may also include a plurality of wing plates 7, the wing plates 7 are connected to the outer surface of the annular tube 5, so as to increase the contact area between the annular anchor 400 and the seabed, increase the friction between the annular anchor 400 and the seabed, so that the annular anchor 400 can be reliably anchored in the seabed.

[0033] Reference Figure 1-Figure 3 The dismantling device 100 includes a suction cylinder 1, the interior of the suction cylinder 1 defines a suction chamber 11 with an opening, the inner diameter of the suction chamber 11 is larger than the outer diameter of the annular cylinder 5, and an avoidance hole 121 is opened on the side wall of the suction cylinder 1. The avoidance hole 121 extends along the axial direction of the suction cylinder 1, and the avoidance hole 121 passes through the surface of one axial end of the suction cylinder 1, and the ear 6 is suitable for being inserted into the avoidance hole 121.

[0034] For example, the suction cylinder 1 may include a cylinder body 12 and a cover body 13, wherein the cover body 13 is disposed on one end of the cylinder body 12 in the axial direction to define a suction chamber 11 having an opening, wherein the inner diameter of the cylinder body 12 is greater than the inner diameter of the annular cylinder 5, and the avoidance hole 121 is provided at one end of the opening of the suction chamber 11. When the annular anchor 400 includes a wing plate 7, an avoidance hole 121 for avoiding the wing plate 7 may also be provided on the cylinder body 12. Specifically, the lifting lug 6 may be provided on the wing plate 7 to reduce the number of avoidance holes 121 provided, thereby reducing the processing cost of the suction cylinder 1.

[0035] A through hole 131 is provided on the top of the suction cylinder 1, and the through hole 131 is connected to the suction chamber 11, for example, the through hole 131 passes through the cover body 13. For example, the disassembler 100 may also include: a fluid pump 2, the output end of the fluid pump 2 is connected to the through hole 131, so as to inject fluid into the suction chamber 11, and / or to suck out the fluid in the suction chamber 11. For example, the fluid pump 2 may be an air pump, or the fluid pump 2 may be a hydraulic pump. When the fluid in the suction chamber 11 is extracted through the through hole 131, the pressure in the suction chamber 11 can be reduced, so that the seawater can press the suction cylinder 1 to move downward. When the fluid is injected into the suction cylinder 1 through the through hole 131, the pressure in the suction chamber 11 can be increased, and the fluid in the suction chamber 11 can push the suction cylinder 1 to move upward.

[0036] When placing the annular anchor 400, the annular tube 5 of the annular anchor 400 can be firstly placed inside the suction chamber 11, the lifting ear 6 can be inserted into the avoidance hole 121, and the annular anchor 400 and the suction tube 1 can be fixed together by using the anchor chain 800. Then, the assembly of the disassembler 100 and the annular anchor 400 can be moved to the seabed at a preset position. After that, the fluid in the suction chamber 11 can be extracted through the through hole 131 to reduce the pressure in the suction chamber 11 so that the seawater can press the suction tube 1 to move downward. When the suction tube 1 descends to a preset depth in the seabed, the anchor chain 800 between the suction tube 1 and the annular anchor 400 can be removed, and the fluid can be injected into the suction tube 1 to increase the pressure in the suction chamber 11, drive the suction tube 1 to move upward, push the suction chamber 11 out of the seabed, leave the annular anchor 400 in the seabed, anchor the annular anchor 400 at a preset position, and complete the installation of the annular anchor 400.

[0037] Since the annular tube 5 of the annular anchor 400 is left in the suction chamber 11, during the process of placing the annular anchor 400, when the fluid in the suction chamber 11 is pumped out, when the annular anchor 400 moves in the direction away from the suction tube 1, the change in the size of the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 can be reduced, or the size of the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 can be kept unchanged, thereby ensuring the sealing effect of the suction chamber 11, so that the pressure in the suction tube 1 can be reliably reduced, and the reliability of the dismantler 100 is improved.

[0038] Compared with the scheme of arranging the suction cylinder 1 and the annular anchor 400 up and down, when the annular anchor 400 moves in the direction away from the suction cylinder 1, the channel for exchanging fluid between the suction chamber 11 and the external environment can be made smaller. When the fluid in the suction chamber 11 is extracted through the through hole 131, the pressure in the suction chamber 11 can drop faster, so that the suction cylinder 1 sinks faster, so that the suction cylinder 1 can quickly place the annular anchor 400 to a preset depth in the seabed, thereby improving the efficiency of the dismantling device 100 in placing the annular anchor 400 and improving the reliability of the dismantling device 100.

[0039] When removing the annular anchor 400, the remover 100 can be first moved to the seabed where the annular anchor 400 is located, and then the fluid in the suction chamber 11 can be extracted through the through hole 131 to reduce the pressure in the suction chamber 11 so that the seawater can press the suction cylinder 1 to move downward. When the suction cylinder 1 covers the annular cylinder 5 and the lifting lug 6 is inserted into the avoidance hole 121, the anchor chain 800 can be used to fix the annular anchor 400 and the suction cylinder 1 together. Then, fluid is injected into the suction cylinder 1 to increase the pressure in the suction chamber 11, drive the suction cylinder 1 to move upward, and push the assembly of the suction cylinder 1 and the annular anchor 400 out of the seabed to complete the removal of the annular anchor 400.

[0040] Since the annular tube 5 of the annular anchor 400 is left in the suction chamber 11, during the process of removing the annular anchor 400 and injecting fluid into the suction chamber 1, when the annular anchor 400 moves in a direction away from the suction chamber 1, the change in the size of the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 can be reduced, or the size of the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 can be kept unchanged, thereby ensuring the sealing effect of the suction chamber 11, so that the pressure in the suction chamber 1 can be reliably increased, thereby improving the reliability of the remover 100.

[0041] Compared with the scheme of arranging the suction cylinder 1 and the annular anchor 400 up and down, when the annular anchor 400 moves in the direction away from the suction cylinder 1, the channel for exchanging fluid between the suction chamber 11 and the external environment can be made smaller. When the fluid in the suction chamber 11 is extracted through the through hole 131, the pressure in the suction chamber 11 can be increased faster, so that the rising speed of the suction cylinder 1 is faster, so that the suction cylinder 1 can quickly pull the annular anchor 400 out of the seabed, thereby improving the efficiency of the dismantling device 100 in dismantling the annular anchor 400 and improving the reliability of the dismantling device 100.

[0042] By providing a suction cavity 11 for accommodating the annular cylinder 5 and an avoidance hole 121 for avoiding the lifting ear 6, the annular anchor 400 can be left in the suction cavity 11, so that the annular anchor 400 can have a certain movable space relative to the suction cylinder 1, so that the anchor chain 800 connecting the annular anchor 400 and the suction cylinder 1 can be set longer, so that the tension when the anchor chain 800 connects the annular anchor 400 and the suction cylinder 1 together is not too large, and the anchor chain 800 can be more conveniently connected to the annular anchor 400 and the suction cylinder 1, thereby improving the connection efficiency of the anchor chain 800 and the dismantling efficiency of the dismantling device 100.

[0043] By inserting the lifting ear 6 into the avoidance hole 121, the suction cylinder 1 can limit the position of the lifting ear 6 through the avoidance hole 121, and limit the position of the annular anchor 400, thereby reducing the amplitude of the shaking of the annular anchor 400 relative to the suction cylinder 1. When placing the annular anchor 400, the annular anchor 400 can be more reliably anchored at a preset position in the seabed.

[0044] For example, the anchor chain 800 can be always connected to the lifting lug 6 of the annular anchor 400. When the annular anchor 400 is placed at a preset depth in the seabed, the end of the anchor chain 800 away from the annular anchor 400 can be placed on the seabed surface, and the end of the anchor chain 800 away from the annular anchor 400 can be placed as far as possible relative to the annular anchor 400. When the annular anchor 400 is removed, it is unnecessary to connect the annular anchor 400 with the anchor chain 800, thereby reducing the difficulty of connecting the suction cylinder 1 with the annular anchor 400 and improving the efficiency of disassembly and assembly.

[0045] For example, the width of the avoidance hole 121 in the direction close to the opening of the suction chamber 11 gradually increases, which makes it easier to insert the lifting ear 6 into the avoidance hole 121, and can reduce the efficiency of aligning the avoidance hole 121 with the lifting ear 6 on the seabed, so that the lifting ear 6 can be reliably and quickly inserted into the avoidance hole 121, thereby improving the connection efficiency between the suction cylinder 1 and the annular anchor 400 and improving the removal efficiency of the remover 100.

[0046] According to the dismantling device 100 of the utility model, by setting the avoidance hole 121 for avoiding the lifting ear 6 of the annular anchor 400, the annular anchor 400 can be built into the suction chamber 11, so that the annular anchor 400 can have a certain activity space relative to the suction cylinder 1, reducing the change of the gap between the annular anchor 400 and the suction cylinder 1 caused by the movement of the annular anchor 400 relative to the suction cylinder 1, improving the sealing effect of the suction chamber 11, improving the sealing effect of the suction chamber 11, making the pressure in the suction cylinder 1 change faster, increasing the sinking speed of the suction cylinder 1, and increasing the rising speed of the suction cylinder 1, so that the suction cylinder 1 can quickly place the annular anchor 400 on the seabed, and the suction cylinder 1 can quickly pull the annular anchor 400 out of the seabed, thereby improving the dismantling efficiency of the dismantling device 100 and improving the reliability of the dismantling device 100.

[0047] Reference Figure 1-Figure 3 According to some embodiments of the present invention, a stop ring is provided inside the suction chamber 11, and the radial outer surface of the stop ring is connected to the inner wall of the suction chamber 11, and the upper surface of the annular tube 5 is suitable for abutting against the stop ring. In this way, when the annular anchor 400 is connected to the suction tube 1, the stop ring can block the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11, further improving the sealing effect of the suction chamber 11.

[0048] For example, according to some embodiments of the present invention, the surface of the stop ring facing the opening of the suction chamber 11 is inclined inward, that is, the portion of the stop ring close to the side wall of the suction chamber 11 is pointed downward; and / or, the width of the stop ring in the direction of the opening of the suction chamber 11 gradually decreases, that is, the portion of the stop ring close to the side wall of the suction chamber 11 is pointed downward; and / or, the thickness of the stop ring in the direction toward the central axis of the suction cylinder 1 gradually decreases, that is, the portion of the stop ring close to the side wall of the suction chamber 11 is pointed downward. With such an arrangement, when the suction cylinder 1 is lowered, the friction between the stop ring and the seabed can be reduced, making it easier to insert the suction cylinder 1 into the seabed.

[0049] Reference Figure 1-Figure 3 According to some embodiments of the present invention, a first sealing member is provided on the side surface of the stop ring away from the through hole 131, and the annular tube 5 and the stop ring are suitable for compressing the first sealing member to deform when abutting. By providing the first sealing member, the gap between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 can be more reliably and effectively blocked, further improving the sealing effect of the suction chamber 11.

[0050] For example, the first sealing member may be a rubber member. When the first sealing member is a rubber member, the first sealing member may be a nitrile rubber member, a silicone rubber member or a fluororubber member. In this way, the elastic variation space of the first sealing member can be larger, and under the condition of ensuring the sealing effect, the distance of the movement of the annular tube 5 relative to the stop ring can be larger, so that the annular anchor 400 has a larger activity space relative to the suction cylinder 1, so that the anchor chain 800 connecting the annular anchor 400 and the suction cylinder 1 can be set longer, so that the tension when the anchor chain 800 connects the annular anchor 400 and the suction cylinder 1 together is not too large, so that the anchor chain 800 can be more conveniently connected to the annular anchor 400 and the suction cylinder 1, thereby improving the connection efficiency of the anchor chain 800 and improving the dismantling efficiency of the dismantling device 100.

[0051] For example, the first sealing member may also be a soft metal member. When the first sealing member is a soft metal member, the first sealing member may be an aluminum member, a copper member or a lead member. In this way, the wear rate of the first sealing member may be reduced, the service life of the first sealing member may be extended, the replacement frequency of the first sealing member may be reduced, the reliability of the first sealing member may be improved, and the reliability of the disassembler 100 may be improved.

[0052] Reference Figure 1-Figure 3 According to some optional embodiments of the utility model, a plurality of lifting ears 3 are provided on the outer surface of the suction cylinder 1, and each lifting ear 3 has a lifting hole for connecting the anchor chain 800; the plurality of lifting ears 3 are provided on the radial outer surface of the suction cylinder 1, and the plurality of lifting ears 3 are arranged at intervals along the axial direction of the suction cylinder 1.

[0053] During the process of removing the annular anchor 400, when sinking the suction cylinder 1, when the soil between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11 prevents the annular anchor 400 from further extending into the suction chamber 11, the suction cylinder 1 and the annular anchor 400 can be connected together by the anchor chain 800, and the anchor chain 800 can be connected to the lifting lug 3 that can be tightened, and then the suction cylinder 1 is driven to rise by injecting fluid into the suction chamber 11. In this way, the soil can block the gap between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11, improve the sealing effect of the suction chamber 11, and enable the suction cylinder 1 to reliably drive the annular anchor 400 to rise.

[0054] By providing a plurality of lifting lugs 3 and arranging the plurality of lifting lugs 3 at intervals along the axial direction of the suction cylinder 1, when the annular anchor 400 is fixed at a plurality of positions relative to the suction cylinder 1, the anchor chain 800 can be connected to the lifting lugs 3 at different positions so that the anchor chain 800 can be in a relatively tensioned state, so that the suction cylinder 1 can reliably drive the annular anchor 400 to rise, thereby improving the compatibility of the dismantling device 100 and improving the overall performance of the dismantling device 100.

[0055] When the pressure of the fluid in the suction chamber 11 is too great and breaks open the soil between the outer surface of the annular tube 5 and the side wall of the suction chamber 11, the suction tube 1 can be lowered first, and the suction tube 1 can be lowered to the point where the annular anchor 400 cannot further extend into the suction chamber 11. After that, the anchor chain 800 can be removed from the current lifting ear 3, and the anchor chain 800 can be connected to the lifting ear 3 that is closer to the top surface of the suction tube 1. Then, by injecting fluid into the suction chamber 11, the suction tube 1 is driven to rise, so that the suction tube 1 is lifted.

[0056] A plurality of lifting ears 6 are provided, and a plurality of lifting ears 3 are spaced apart along the axial direction of the suction cylinder 1. When the fluid flushes away the soil between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11, the anchor chain 800 can be connected to the lifting ear 3 closer to the top surface of the suction cylinder 1, and the anchor chain 800 can be tensioned to reliably fix the annular anchor 400 relative to the suction cylinder 1 and more deeply fixed in the suction chamber 11, so that the annular anchor 400 is reliably fixed relative to the suction chamber 11, and the distance that the annular anchor 400 moves relative to the suction cylinder 1 is not too large, thereby reducing the change in the gap between the annular anchor 400 and the suction cylinder 1 caused by the movement of the annular anchor 400 relative to the suction cylinder 1, and improving the sealing effect of the suction chamber 11.

[0057] Reference Figure 1-Figure 3 According to some optional embodiments of the utility model, a plurality of lifting ears 3 are provided on the outer surface of the suction cylinder 1, each lifting ear 3 has a lifting hole for connecting the anchor chain 800, and the plurality of lifting ears 3 are provided on the top surface of the suction cylinder 1, and the plurality of lifting ears 3 are arranged at intervals along the radial direction of the suction cylinder 1.

[0058] During the process of removing the annular anchor 400, when sinking the suction cylinder 1, when the soil between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11 prevents the annular anchor 400 from further extending into the suction chamber 11, the suction cylinder 1 and the annular anchor 400 can be connected together by the anchor chain 800, and the anchor chain 800 can be connected to the lifting lug 3 that can be tightened, and then the suction cylinder 1 is driven to rise by injecting fluid into the suction chamber 11. In this way, the soil can block the gap between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11, improve the sealing effect of the suction chamber 11, and enable the suction cylinder 1 to reliably drive the annular anchor 400 to rise.

[0059] By providing a plurality of lifting lugs 3 and arranging the plurality of lifting lugs 3 at intervals along the axial direction of the suction cylinder 1, when the annular anchor 400 is fixed at a plurality of positions relative to the suction cylinder 1, the anchor chain 800 can be connected to the lifting lugs 3 at different positions so that the anchor chain 800 can be in a relatively tensioned state, so that the suction cylinder 1 can reliably drive the annular anchor 400 to rise, thereby improving the compatibility of the dismantling device 100 and improving the overall performance of the dismantling device 100.

[0060] When the pressure of the fluid in the suction chamber 11 is too great and breaks open the soil between the outer surface of the annular tube 5 and the side wall of the suction chamber 11, the suction tube 1 can be lowered first, and the suction tube 1 can be lowered to the point where the annular anchor 400 cannot extend further into the suction chamber 11. After that, the anchor chain 800 can be removed from the current lifting ear 3, and the anchor chain 800 can be connected to the lifting ear 3 that is closer to the central axis of the suction tube 1. Then, by injecting fluid into the suction chamber 11, the suction tube 1 is driven to rise, so that the suction tube 1 is lifted.

[0061] A plurality of lifting ears 6 are provided, and a plurality of lifting ears 3 are spaced apart along the axial direction of the suction cylinder 1. When the fluid flushes away the soil between the outer surface of the annular cylinder 5 and the side wall of the suction chamber 11, the anchor chain 800 can be connected to the lifting ear 3 closer to the central axis of the suction cylinder 1, and the anchor chain 800 can be tensioned to fix the annular anchor 400 reliably relative to the suction cylinder 1 and more deeply into the suction chamber 11, so that the annular anchor 400 is reliably fixed relative to the suction chamber 11, and the movement distance of the annular anchor 400 relative to the suction cylinder 1 is not too large, thereby reducing the change in the gap between the annular anchor 400 and the suction cylinder 1 caused by the movement of the annular anchor 400 relative to the suction cylinder 1, and improving the sealing effect of the suction chamber 11.

[0062] Reference Figure 1-Figure 3 According to some optional embodiments of the utility model, a reel is provided on the outer surface of the suction cylinder 1, and the reel includes a reeling bracket and a rotating shaft. The reeling bracket is connected to the suction cylinder 1, and the rotating shaft is transmissively arranged on the reeling bracket, and the anchor chain 800 is suitable for being connected to the rotating shaft.

[0063] When the annular anchor 400 and the suction cylinder 1 need to be connected, one end of the anchor chain 800 can be first connected to the lifting ear 6 of the annular anchor 400, and the other end of the anchor chain 800 can be connected to the rotating shaft, and then the rotating shaft is rotated to tighten the anchor chain 800, so that the anchor chain 800 can reliably connect and fix the annular anchor 400 and the suction cylinder 1; and in this way, the anchor chain 800 can be set longer, which is convenient for the connection between the anchor chain 800 and the annular anchor 400, and the connection between the anchor chain 800 and the suction cylinder 1.

[0064] When there is soil between the outer surface of the annular tube 5 and the side wall of the suction chamber 11, resulting in the annular anchor 400 not being fixed relative to the suction tube 1 at the deepest position of the suction chamber 11, the rotating shaft can be ensured to be in a started state. When the pressure of the fluid in the suction chamber 11 is too high and the soil between the outer surface of the annular tube 5 and the side wall of the suction chamber 11 is flushed away, the rotating shaft can reel in the anchor chain 800 in time, so that the anchor chain 800 drives the annular anchor 400 to further penetrate into the suction chamber 11, preventing the annular anchor 400 from moving outside the suction chamber 11 and causing the gap between the annular anchor 400 and the suction chamber 1 to become larger, so that the gap between the annular anchor 400 and the suction chamber 1 is smaller, thereby ensuring the sealing effect of the suction chamber 11.

[0065] For example, when a stop ring is provided in the suction chamber 11, the gap between the annular tube 5 and the stop ring can be kept small by tensioning the anchor chain 800 with the rotating shaft, so that the sealing effect of the suction chamber 11 is better. Specifically, when a first sealing member is provided on the surface of the stop ring suitable for abutting the annular tube 5, the first sealing member can be always in a compressed and deformed state by tensioning the anchor chain 800 with the rotating shaft, so that the first sealing member has a better sealing effect on the gap between the annular tube 5 and the stop ring, further improving the sealing effect of the suction chamber 11.

[0066] When the anchor chain 800 needs to be removed from the rotating shaft, the rotating shaft can be rotated in the opposite direction to loosen the anchor chain 800 and remove the anchor chain 800 from the rotating shaft. This facilitates the disassembly of the anchor chain 800 and the disassembly between the suction cylinder 1 and the annular anchor 400, and can improve the disassembly efficiency of the disassembler 100.

[0067] For example, the reel is disposed on the cover 13 of the suction cylinder 1 , which can prevent the reel from interfering with the seabed when the suction cylinder 1 is lowered, thereby effectively ensuring the reliability of the reel and improving the reliability of the dismantling device 100 .

[0068] Reference Figure 1-Figure 2According to some embodiments of the utility model, a second sealing member is provided on the hole wall of the avoidance hole 121, and the two surfaces of the avoidance hole 121 in the circumferential direction of the suction cylinder 1 are respectively a first surface and a second surface, a second sealing member is provided on the first surface, and a third sealing member is provided on the second surface, the second sealing member and the third sealing member stop at two parts in the circumferential direction of the suction cylinder 1, and the second sealing member and the third sealing member press each other, and the lifting ear 6 is suitable for being passed through between the second sealing member and the third sealing member to compress the two to deform.

[0069] Setting the second seal and the third seal to press against each other can make the second seal and the third seal reliably seal the avoidance hole 121, reduce the size of the channel for the suction cylinder 1 to exchange fluid with the external environment, further improve the sealing effect of the suction chamber 11, make the pressure in the suction chamber 11 change faster, make the lifting and lowering speed of the suction cylinder 1 faster, improve the removal efficiency of the remover 100, and improve the reliability of the remover 100.

[0070] According to some embodiments of the present utility model, the disassembler 100 further includes: a plurality of positioning guide arms, one end of the positioning guide arm is on the inner wall of the suction chamber 11, and the connection point between the positioning guide arm and the suction cylinder 1 is away from the avoidance hole 121 in the axial direction of the suction cylinder 1, the other end of the positioning guide arm extends toward the center of the annular cylinder 5, and the other end of the positioning guide arm extends out of the suction chamber 11, and the other end of the positioning guide arm is suitable for extending into the annular cylinder 5. For example, when a stop ring is provided in the suction chamber 11, the positioning guide arm can be connected to the inner ring of the stop ring.

[0071] When removing the annular anchor 400 and sinking the suction cylinder 1, the positioning guide arm can be first inserted into the annular cylinder 5, and then the positioning guide arm can stop against the inner wall of the annular anchor 400 to guide the shape of the suction cylinder 1, so that the suction cylinder 1 can descend along the inner wall of the annular anchor 400, so that the suction cylinder 1 can be securely sleeved on the circumferential outer side of the annular cylinder 5, so that the annular anchor 400 can be securely extended into the suction cylinder 1, so as to facilitate the alignment of the suction cavity 11 with the annular anchor 400, shorten the time for sleeve- ing the suction cylinder 1 outside the annular cylinder 5, and improve the removal efficiency of the remover 100.

[0072] In the description of the present utility model, it is to be understood that relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A release device for a ring anchor, characterized in that: Used for dismantling an annular anchor, the annular anchor comprises an annular tube and a lifting lug, the lifting lug is connected to the radial outer side of the annular tube and is suitable for providing a connection point for the anchor chain, the dismantling device comprises: A suction cylinder, wherein the interior of the suction cylinder defines a suction cavity with an opening, the inner diameter of the suction cavity is larger than the outer diameter of the annular cylinder, a avoidance hole is provided on the side wall of the suction cylinder, the avoidance hole extends along the axial direction of the suction cylinder and passes through the surface of one axial end of the suction cylinder, and the lifting ear is suitable for being inserted into the avoidance hole; a through hole is provided on the top of the suction cylinder, and the through hole is connected to the suction cavity.

2. The release device for the annular anchor according to claim 1, characterized in that: A stop ring is provided inside the suction chamber, a radial outer surface of the stop ring is connected to the inner wall of the suction chamber, and the upper surface of the annular cylinder is suitable for abutting against the stop ring.

3. The release device for the annular anchor according to claim 2, characterized in that: The stop ring is inclined inwardly on a surface facing the opening of the suction chamber; and / or, in a direction toward the opening of the suction chamber, the width of the stop ring in the radial direction gradually decreases; And / or, in the direction toward the central axis of the suction cylinder, the thickness of the stop ring in the axial direction gradually decreases.

4. The release device for the annular anchor according to claim 2, characterized in that: A first sealing member is provided on a surface of the stop ring on one side away from the through hole, and the annular tube and the stop ring are suitable for compressing the first sealing member to deform when stopping.

5. The release device for the annular anchor according to any one of claims 1 to 4, characterized in that: A plurality of lifting lugs are provided on the outer surface of the suction cylinder, and each of the lifting lugs has a lifting hole for connecting the anchor chain; The plurality of lifting lugs are arranged on the radial outer surface of the suction cylinder and are spaced apart along the axial direction of the suction cylinder; and / or the plurality of lifting lugs are arranged on the top surface of the suction cylinder and are spaced apart along the radial direction of the suction cylinder.

6. The releaser according to any one of claims 1 to 4, characterized in that: A reel is provided on the outer surface of the suction cylinder, and the reel includes a reel bracket and a rotating shaft. The reel bracket is connected to the suction cylinder, and the rotating shaft is rotatably arranged on the reel bracket. The anchor chain is suitable for being connected to the rotating shaft.

7. The release device for the annular anchor according to any one of claims 1 to 4, characterized in that: A second sealing member is provided on the hole wall of the avoidance hole, and the two surfaces of the avoidance hole in the circumferential direction of the suction cylinder are respectively a first surface and a second surface, a second sealing member is provided on the first surface, and a third sealing member is provided on the second surface, and the second sealing member and the third sealing member stop and press each other at two parts in the circumferential direction of the suction cylinder, and the lifting ear is suitable for being passed between the second sealing member and the third sealing member to compress the two to deform.

8. The release device for the annular anchor according to any one of claims 1 to 4, characterized in that: Also includes: A plurality of positioning guide arms, one end of each positioning guide arm is on the inner wall of the suction cavity, and a connection point between each positioning guide arm and the suction cylinder is axially away from the avoidance hole of the suction cylinder, and the other end of each positioning guide arm extends toward the center of the annular cylinder and extends out of the suction cavity, and the other end of each positioning guide arm is suitable for extending into the annular cylinder.

9. The release device for the annular anchor according to any one of claims 1 to 4, characterized in that: In the direction toward the opening of the suction chamber, the width of the avoidance hole in the circumferential direction of the suction cylinder gradually increases.

10. The release device for an annular anchor according to any one of claims 1 to 4, characterized in that: Also includes: A fluid pump, wherein the output end of the fluid pump is connected to the through hole so as to inject fluid into the suction chamber and / or to suck out the fluid in the suction chamber.

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