An underwater mooring line cutting device and method

Abstract

The application relates to underwater anchor cable cutting equipment and a method, and belongs to the anchor cable cutting field.The equipment comprises a handle, an upper mounting plate connected at the bottom of the handle, a hydraulic oil cylinder with a first piston rod slidably connected in the interior, a rope hook part comprising a first rope hook piece and a second rope hook piece, a positioning anti-rotation assembly arranged on both sides of a cutting blade and sleeved on the first piston rod, and a rope breaking clamping assembly arranged on the cutting blade and the first rope hook piece; the hydraulic oil cylinder and the rope hook part are fixedly installed at the bottom of a lower mounting plate, the upper mounting plate is fixed with the lower mounting plate; the end of the first piston rod is fixedly connected with a connecting part, and the connecting part is provided with the cutting blade; under the driving of the hydraulic oil cylinder, the first piston rod drives the connecting part and the cutting blade to move, so that the anchor cable is cut into two sections. The method uses the equipment to cut the underwater anchor cable. The application realizes accurate positioning and efficient cutting of the underwater anchor cable, and collects the cut anchor cable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anchor cable cutting, in particular to an underwater anchor cable cutting device and method. BACKGROUND

[0002] In marine engineering, port facility maintenance, underwater salvage and other work, underwater anchor cable cutting is often required. The traditional underwater anchor cable cutting method relies on divers carrying tools to operate directly underwater. This method is inefficient and poses a significant safety risk to divers, such as water pressure injury and accidents caused by complex underwater environments. In addition, some underwater robots carry cutting equipment, which reduces the dependence on divers to some extent, but the equipment is expensive and complex to operate. Moreover, when cutting the root of the anchor cable, it is difficult to accurately position and efficiently cut due to the invisibility of the underwater environment and water flow.

[0003] In the underwater environment, water flow can cause the cutting device to sway or shift, making it difficult to maintain a stable cutting posture and affecting the accuracy and effectiveness of the cutting. In particular, when cutting thicker anchor cables, the influence of water flow on the cutting direction is more pronounced. From the perspective of the anchor cable itself, underwater anchor cables are usually made of high-strength metal materials such as steel wire and iron chain, or synthetic fiber materials such as polyester and nylon. After cutting, the cutting trajectory of the anchor cable is difficult to predict due to the influence of complex water flows such as underwater currents and eddies, and it is easy to float to the water surface. The anchor cable floating on the water surface will drift with the water flow and wind direction, covering a wide range and making it difficult for workers to search and collect. In open water environments, the anchor cable may drift far from the cutting point, significantly increasing the difficulty of search and recovery. Moreover, floating anchor cables are prone to entangling each other to form complex rope bundles, further increasing the collection and processing workload. If not handled in a timely manner, floating anchor cables not only pose a threat to ship navigation safety, but also may entangle marine life. SUMMARY

[0004] The present application aims to address the problem of accurate positioning and efficient cutting of existing underwater anchor cable cutting, as well as the difficulty of collecting cut anchor cables. The present application provides an underwater anchor cable cutting device and method that achieves accurate positioning and efficient cutting of underwater anchor cables, and collects cut anchor cables.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] An underwater anchor cable cutting device, comprising a handle, a lower mounting plate, a hydraulic cylinder, a rope hook portion, a positioning anti-rotation assembly, and a rope cutting and clamping assembly, the rope hook portion comprising a first rope hook member and a second rope hook member;

[0007] The bottom of the handle is connected with an upper mounting plate, the top of the hydraulic oil cylinder, the first rope hook member and the second rope hook member are fixedly installed at the bottom of the lower mounting plate, and the upper mounting plate and the lower mounting plate are fixed through bolts.

[0008] The first piston rod is slidably connected in the hydraulic oil cylinder, the end of the first piston rod is fixedly connected with a connecting portion, and a cutting blade for cutting the anchor cable is installed on the connecting portion; under the driving of the hydraulic oil cylinder, the first piston rod drives the connecting portion and the cutting blade to move, so that the anchor cable is cut into two sections;

[0009] The positioning anti-rotation assembly is arranged on both sides of the cutting blade and is sleeved on the first piston rod, moves synchronously with the cutting blade, and is used for positioning the anchor cable and preventing the anchor cable from rotating; the rope clamping assembly is arranged on the cutting blade and the first rope hook member and is used for clamping the upper section of the anchor cable.

[0010] Further, the handle comprises a holding portion and a sliding sleeve; the lower end of the sliding sleeve is fixedly connected with the top of the upper mounting plate, the side wall of the holding portion is threadedly connected with a locking member, and the side wall of the sliding sleeve is provided with a limiting groove matched with the locking member; the holding portion is slidably connected with the sliding sleeve and is locked through the clamping connection of the locking member and the limiting groove.

[0011] Further, a quick connector is arranged on the hydraulic oil cylinder, a hydraulic oil pipe is installed in the quick connector, and a plurality of guide rings for limiting the hydraulic oil pipe are installed on the side wall of the sliding sleeve; the hydraulic oil pipe is arranged on the sliding sleeve through the guide rings, one end of the hydraulic oil pipe is connected with a hydraulic pump station or a manual hydraulic pump through a manual pressure relief valve, and the other end of the hydraulic oil pipe is connected with the hydraulic oil cylinder through the quick connector; the top piston of the first piston rod and the inner bottom wall of the hydraulic oil cylinder are elastically connected through a first spring.

[0012] Further, the first rope hook member and the second rope hook member are respectively arranged on the left side and the right side of the cutting blade, the gap between the first rope hook member and the second rope hook member is matched with the thickness of the cutting blade, and one side of the cutting blade is located in the gap between the first rope hook member and the second rope hook member.

[0013] Further, the positioning anti-rotation assembly comprises two connecting plates, one mounting cylinder is connected to each side of the connecting plate, the two connecting plates are fixed into an integral whole through screws and are sleeved on the first piston rod, and the bottom of the connecting plate abuts against the top of the connecting portion;

[0014] The mounting cylinder is hollow, the second piston rod is slidably and sealingly connected in the mounting cylinder, the top piston of the second piston rod and the inner bottom wall of the mounting cylinder are elastically connected through a second spring, the lower end of the second piston rod penetrates through the bottom wall of the mounting cylinder, and the lower ends of the two second piston rods on the same side of the connecting portion are connected with the same arc-shaped clamping block.

[0015] The second piston rod and the inner part of the arc-shaped clamp are hollow, the bottom wall of the arc-shaped clamp is symmetrically provided with two air bags, the air bags are in sealing connection with the inner cavities of the arc-shaped clamp, and the inner cavity of the mounting cylinder above the piston at the top of the second piston rod is in communication with the inner cavities of the arc-shaped clamp and the air bags through the air guide channel.

[0016] Further, when the cutting blade cuts the anchor cable, the bottom wall of the arc-shaped clamp and the bottom wall of the air bag are in abutment with the surface of the anchor cable, the arc-shaped clamp is elastically arranged, and the bottom wall of the arc-shaped clamp is provided with anti-skid lines.

[0017] Further, the broken rope clamping assembly comprises two pressing plates and two accommodating grooves symmetrically formed in the first rope hook part, the lower end of the pressing plate is connected with a connecting shaft, the connecting shaft is located between the first rope hook part and the second rope hook part, a gear is fixedly connected to the connecting shaft, the side wall of the pressing plate and the bottom wall of the corresponding accommodating groove are elastically connected through a bending spring, a rack part is arranged on the side wall of the cutting blade facing the corresponding gear, the rack part and the gear are in meshing connection, and the movement of the cutting blade will drive the pressing plate to rotate through the gear.

[0018] Further, the first rope hook part and the second rope hook part are both provided with through holes matched with the connecting shaft, and the two sides of the gear are in abutment with the side walls of the first rope hook part and the second rope hook part respectively;

[0019] When the cutting blade is above the anchor cable, the bending spring is in an initial state, and the pressing plate is accommodated in the corresponding accommodating groove;

[0020] When the hydraulic oil cylinder is not started, the gap between the top end of the pressing plate and the arc-shaped clamp is greater than the diameter of the anchor cable;

[0021] After the cutting blade cuts the anchor cable into upper and lower two sections, the side walls of the two pressing plates are in abutment with the outer side wall of the anchor cable of the upper section.

[0022] The application provides an underwater anchor cable cutting method using the underwater anchor cable cutting device, and the method comprises the following steps:

[0023] Step 1: The operator holds the handle, adjusts the length of the handle to adapt to the underwater operation requirements at different depths, inserts the cutting blade into the water, hooks the anchor cable by using the first rope hook part and the second rope hook part of the rope hook part, and then moves the cutting blade along the anchor cable to the bottom of the anchor cable;

[0024] Step 2: The hydraulic oil cylinder is filled with hydraulic oil, the hydraulic oil drives the first piston rod in the hydraulic oil cylinder to elongate, the first piston rod drives the connecting part and the cutting blade to move, and the anchor cable at the bottom is cut, in the cutting process, the positioning anti-rotation assembly moves synchronously with the cutting blade to position the anchor cable and prevent the anchor cable from rotating;

[0025] Step 3: After the anchor cable is cut into two sections, the broken rope clamping assembly clamps the anchor cable of the upper section.

[0026] The beneficial technical effects of the present application are as follows:

[0027] The underwater anchor cable cutting device and method of the present application can be directly operated on the shore, and through the setting of the hydraulic drive and the positioning anti-rotation assembly, the cooperation of cutting, clamping and other actions is realized. The elastic fitting of the arc-shaped clamping block to the anchor cable, the filling of the gap by the air bag and the increase of the friction by the anti-skid pattern effectively inhibit the shaking and rotation of the anchor cable during cutting. At the same time, the pressure plate can also drive the upper section of the anchor cable to be fixed, forming multi-directional clamping force. Even in complex underwater working conditions, the relative stability of the anchor cable during the cutting process can be ensured, so that the cutting process can continue and proceed smoothly, avoiding the interruption of cutting or damage to the cutter due to the rotation of the anchor cable. After cutting, the broken rope clamping assembly clamps the upper section of the anchor cable in time and moves upward with the cutter, which can avoid the floating and winding of the anchor cable, protect the order of the underwater operation environment, and also realize the effective separation of the upper and lower sections of the anchor cable, facilitating separate processing and reducing the threat of floating anchor cable to ship navigation.

[0028] The underwater anchor cable cutting device and method of the present application limit the transverse movement of the anchor cable through the specific cooperation of the rope hook and the cutting blade, cooperate with the positioning anti-rotation assembly and the broken rope clamping assembly, and together form stable cutting conditions and accurate cutting paths, making the cutting process more smooth and reducing the need for repeated adjustment of the cutting position or re-cutting due to unstable anchor cable. This greatly saves cutting time and improves work efficiency, enabling the completion of underwater anchor cable cutting tasks in a shorter time. The handle length-adjustable design adapts to different depths of underwater anchor cable cutting needs, and the camera or sonar realizes accurate positioning of the underwater anchor cable. Multiple measures ensure that the cutting blade cuts along the preset path, significantly improving cutting accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The structure schematic diagram of an embodiment of the underwater anchor cable cutting device of the present application;

[0030] Figure 2 The handle structure schematic diagram of an embodiment of the underwater anchor cable cutting device of the present application;

[0031] Figure 3 The rope hook part and hydraulic cylinder structure schematic diagram of an embodiment of the underwater anchor cable cutting device of the present application;

[0032] Figure 4 The installation cylinder cross-sectional structure schematic diagram of an embodiment of the underwater anchor cable cutting device of the present application;

[0033] Figure 5 The first rope hook part cross-sectional structure schematic diagram of an embodiment of the underwater anchor cable cutting device of the present application;

[0034] Figure 6 As Figure 5 Enlarged structural schematic view at A in the middle;

[0035] Figure 7 Structural schematic view of the anchor rope cutting device in the process of cutting anchor rope for an embodiment of the underwater anchor rope cutting device of the present application;

[0036] Figure 8 Structural schematic view of the anchor rope cutting device in the process of cutting anchor rope for an embodiment of the underwater anchor rope cutting device of the present application;

[0037] Figure 9 As Figure 8 Enlarged structural schematic view at B in the middle;

[0038] Figure 10 Structural schematic view of the position of the pressing plate in the process of cutting anchor rope for an embodiment of the underwater anchor rope cutting device of the present application;

[0039] Figure 11 Structural schematic view of the partial explosion for an embodiment of the underwater anchor rope cutting device of the present application;

[0040] Figure 12 Structural schematic view of the hydraulic cylinder profile for an embodiment of the underwater anchor rope cutting device of the present application;

[0041] Figure 13 As Figure 12 Enlarged structural schematic view at C in the middle.

[0042] In the figure, 1, handle; 2, upper mounting plate; 3, hydraulic cylinder; 4, rope hook part; 5, mounting cylinder; 6, pressing plate; 10, anchor rope; 11, holding part; 12, sliding sleeve; 21, lower mounting plate; 31, first piston rod; 32, first spring; 33, quick connector; 34, connecting part; 35, cutting blade; 41, first rope hook part; 42, second rope hook part; 50, connecting plate; 51, second piston rod; 52, second spring; 53, arc-shaped clamping block; 61, connecting shaft; 62, gear; 63, bending spring; 111, locking part; 121, guide ring; 122, limiting groove; 331, hydraulic oil pipe; 351, rack part; 411, containing groove; 511, air guide channel; 531, air bag. DETAILED DESCRIPTION

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "comprising", "containing", "containing" and "having" are to be construed as specifying the presence of the stated features but not precluding the presence of one or more other features; the use herein of terms such as "first", "second" and the like does not imply a particular order but is used for the purpose of nomenclature only.

[0044] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art upon reading this description, the embodiments described herein are merely examples of implementations and are not intended to limit the scope, applicability, or configuration of the application in any way. Rather, the foregoing summary of the application, as well as the following detailed description of the application, are intended to provide a functional description only.

[0045] The technical solutions of the application are described below in detail with reference to the drawings and specific embodiments.

[0046] Embodiment 1

[0047] Reference Figures 1-13 , the embodiment provides an underwater anchor cable cutting device, which comprises a handle 1, a lower mounting plate 21, a hydraulic oil cylinder 3, a rope hook part 4, a positioning anti-rotation assembly and a rope cutting and clamping assembly, the rope hook part 4 comprises a first rope hook piece 41 and a second rope hook piece 42;

[0048] The bottom of the handle 1 is connected with an upper mounting plate 2, the top of the hydraulic oil cylinder 3, the first rope hook piece 41 and the second rope hook piece 42 is fixedly installed at the bottom of the lower mounting plate 21, and the upper mounting plate 2 and the lower mounting plate 21 are fixed by bolts;

[0049] The inside of the hydraulic oil cylinder 3 is slidably connected with a first piston rod 31, the end of the first piston rod 31 is fixedly connected with a connecting part 34, and a cutting blade 35 for cutting the anchor cable 10 is installed on the connecting part 34; under the drive of the hydraulic oil cylinder 3, the first piston rod 31 drives the connecting part 34 and the cutting blade 35 to move, so as to cut the anchor cable 10 into two sections;

[0050] The positioning anti-rotation assembly is arranged on both sides of the cutting blade 35 and is sleeved on the first piston rod 31, moves synchronously with the cutting blade 35, and is used for positioning the anchor cable 10 and preventing the anchor cable 10 from rotating; the rope cutting and clamping assembly is arranged on the cutting blade 35 and the first rope hook piece 41, and is used for clamping the upper section of the anchor cable 10.

[0051] In the embodiment, the handle 1 comprises a holding part 11 and a sliding sleeve 12; the lower end of the sliding sleeve 12 is fixedly connected with the top of the upper mounting plate 2, the side wall of the holding part 11 is threadedly connected with a locking piece 111, and the side wall of the sliding sleeve 12 is provided with a limiting groove 122 matched with the locking piece 111; the holding part 11 is slidingly connected with the sliding sleeve 12 and is locked by the locking piece 111 and the limiting groove 122.

[0052] The holding part 11 can slide on the sliding sleeve 12 and is fixed in position by the locking piece 111, and the length of the handle 1 can be adjusted according to actual needs by an operator, so as to facilitate cutting of the anchor cable 10 at different depths underwater; the operator holds the handle 1 to put the cutting device into water, hooks the anchor cable 10 by the rope hook part 4, and then the anchor cable 10 falls into the rope groove after passing through the rope groove of the hook rope part 4, and then the cutting blade 35 is moved along the anchor cable 10 until the bottom of the anchor cable 10.

[0053] In the embodiment, the hydraulic oil cylinder 3 is provided with a quick plug connector 33, the hydraulic oil pipe 331 is arranged in the quick plug connector 33, and a plurality of guide rings 121 for limiting the hydraulic oil pipe 331 are arranged on the side wall of the sliding sleeve 12; the hydraulic oil pipe 331 is arranged on the sliding sleeve 12 in an orderly manner through the guide rings 121, one end of the hydraulic oil pipe 331 is connected with a hydraulic pump station or a manual hydraulic pump through a hand pressure relief valve, and the other end of the hydraulic oil pipe 331 is connected with the hydraulic oil cylinder 3 through the quick plug connector 33; the top piston of the first piston rod 31 and the inner bottom wall of the hydraulic oil cylinder 3 are elastically connected through the first spring 32.

[0054] The quick plug connector 33 can realize quick and convenient connection and disconnection between the hydraulic oil pipe 331 and the hydraulic oil cylinder 3.

[0055] Because the underwater environment is complex, the hydraulic oil pipe 331 may be shaken and wound due to water flow, vibration and other factors during work, the guide rings 121 can keep the hydraulic oil pipe 331 in an orderly arrangement, avoid damage to the hydraulic oil pipe 331, and ensure smooth transmission of hydraulic oil; the end of the hydraulic oil pipe 331 is connected with the hydraulic pump station or the manual hydraulic pump through the hand pressure relief valve, the hand pressure relief valve plays a role in controlling the pressure of the hydraulic system, during use of the cutting device, the operator can adjust the pressure of the hydraulic system through the hand pressure relief valve according to actual cutting needs, and the pressure in the hydraulic system can be released through the hand pressure relief valve when cutting is completed or the cutting device needs to stop working, thereby ensuring the safety of the cutting device and the operator.

[0056] When the hydraulic oil cylinder 3 drives the first piston rod 31 to operate for cutting, the first spring 32 can relieve the impact force received by the first piston rod 31 and reduce damage to the hydraulic oil cylinder 3 and other components, and the elastic force of the first spring 32 can automatically reset the first piston rod 31 after pressure relief of the hydraulic system, thereby preparing for the next cutting.

[0057] In this embodiment, the first rope hook 41 and the second rope hook 42 are respectively located on the left side and the right side of the cutting blade 35, the gap between the first rope hook 41 and the second rope hook 42 matches the thickness of the cutting blade 35, and one side of the cutting blade 35 is located in the gap between the first rope hook 41 and the second rope hook 42.

[0058] The arrangement of the first rope hook 41 and the second rope hook 42 can effectively fix the anchor cable 10 at a specific position, providing a stable cutting object for the cutting blade 35. In the underwater environment, the anchor cable 10 may move due to factors such as water flow, and the rope hook part 4 can limit the lateral movement of the anchor cable 10, ensuring that the cutting blade 35 can accurately contact and cut the anchor cable 10. During the cutting process, the rope hook can play a certain guiding role, enabling the cutting blade 35 to cut along the correct path, improving the cutting precision and efficiency, and at the same time, this design can also help to reduce the wear of the cutting blade 35 and prolong its service life.

[0059] In this embodiment, the positioning anti-rotation assembly includes two connecting plates 50, each side of the connecting plate 50 is connected with an installation cylinder 5, the two connecting plates 50 are fixed as a whole by screws and are sleeved on the first piston rod 31, and the bottom of the connecting plate 50 abuts against the top of the connecting part 34, which enables the positioning anti-rotation assembly to move together with the first piston rod 31, ensuring the synchronization of the positioning anti-rotation assembly and the cutting blade 35.

[0060] The inside of the installation cylinder 5 is hollow, the second piston rod 51 is slidingly and sealingly connected in the inside of the installation cylinder 5, the top piston of the second piston rod 51 is elastically connected with the inner bottom wall of the installation cylinder 5 through the second spring 52, the lower end of the second piston rod 51 penetrates the bottom wall of the installation cylinder 5, and the lower ends of the two second piston rods 51 on the same side of the connecting part 34 are connected with the same arc-shaped clamping block 53; the inside of the second piston rod 51 and the arc-shaped clamping block 53 is hollow, two air bags 531 are symmetrically installed on the bottom wall of the arc-shaped clamping block 53, the air bags 531 are sealingly connected with the inner cavities of the arc-shaped clamping block 53, and the inner cavity of the installation cylinder 5 above the top piston of the second piston rod 51 is connected in communication with the inner cavities of the arc-shaped clamping block 53 and the air bags 531 through the air guide channel 511, so that the circulation of gas and the transmission of pressure can be realized when the cutting blade 35 moves.

[0061] In this embodiment, when the cutting blade 35 cuts the anchor cable 10, the bottom wall of the arc-shaped clamping block 53 and the bottom wall of the air bag 531 abut against the surface of the anchor cable 10, achieving clamping of the anchor cable 10.

[0062] The arc-shaped clamping block 53 is elastically arranged. Since the surface of the anchor cable 10 is not completely regular and smooth, the elastically arranged arc-shaped clamping block 53 can better fit the surface profile of the anchor cable 10. When in contact with the anchor cable 10, the arc-shaped clamping block 53 can deform to a certain extent according to the shape of the anchor cable 10, thereby increasing the contact area with the anchor cable 10;

[0063] The bottom wall of the arc-shaped clamping block 53 is provided with anti-skid lines, thereby increasing the friction between the arc-shaped clamping block 53 and the surface of the anchor cable 10. In the underwater environment, the surface of the anchor cable 10 can be attached with water or other substances, thereby causing the surface to be relatively smooth and easy to slide. The anti-skid lines can destroy this smooth surface state, so that the contact between the arc-shaped clamping block 53 and the anchor cable 10 is rougher, thereby effectively preventing the anchor cable 10 from rotating or sliding due to insufficient friction during the cutting process.

[0064] The anti-skid lines cooperate with the elastic clamping action of the arc-shaped clamping block 53, thereby further enhancing the fixing effect on the anchor cable 10, so as to ensure that the cutting blade 35 can smoothly perform the cutting operation. Even in the case of being disturbed by a large external force such as water flow force, the position of the anchor cable 10 can also be kept relatively stable, thereby reducing the cutting error and improving the cutting quality.

[0065] In the embodiment, the broken rope clamping assembly includes two pressing plates 6 and two accommodating grooves 411 symmetrically formed in the first rope hook member 41. The lower end of the pressing plate 6 is connected with a connecting shaft 61, the connecting shaft 61 is located between the first rope hook member 41 and the second rope hook member 42, the connecting shaft 61 is fixedly connected with a gear 62, the side wall of the pressing plate 6 and the bottom wall of the corresponding accommodating groove 411 are elastically connected through a bending spring 63, the pressing plate 6 is connected with the gear 62 through the connecting shaft 61 and can move in the accommodating groove 411, the bending spring 63 provides an elastic restoring force, the side wall of the cutting blade 35 corresponding to the gear 62 is provided with a gear rack part 351, the gear rack part 351 is meshingly connected with the gear 62, and the movement of the cutting blade 35 drives the pressing plate 6 to rotate through the gear 62.

[0066] In the embodiment, the first rope hook member 41 and the second rope hook member 42 are both provided with through holes matched with the connecting shaft 61, and the two sides of the gear 62 are respectively abutted against the side walls of the first rope hook member 41 and the second rope hook member 42;

[0067] When the cutting blade 35 is located above the anchor cable 10, the bending spring 63 is in an initial state, and the pressing plate 6 is accommodated in the corresponding accommodating groove 411;

[0068] When the hydraulic oil cylinder 3 is not started, the gap between the top end of the pressing plate 6 and the arc-shaped clamping block 53 is greater than the diameter of the anchor cable 10, so that the anchor cable 10 is not hindered, and the anchor cable 10 can be smoothly fixed by the rope hook part 4 and the cutting blade 35 can normally descend and cut;

[0069] After the cutting blade 35 cuts the anchor cable 10 into two segments, the side walls of the two pressing plates 6 abut against the outer side walls of the upper segment of the anchor cable 10, thereby clamping the cut cable.

[0070] In this embodiment, the hydraulic pump station or the hydraulic oil pipe 331 with a manual pressure relief valve on the manual hydraulic pump is connected to the hydraulic oil cylinder 3 through the guide ring 121 on the handle 1 and the quick connector 33, thereby completing the connection of the hydraulic system. The operator holds the handle 1 and adjusts the length of the handle 1 to adapt to the requirements of underwater operation at different depths. The cutting blade 35 is inserted into the water, and the first and second rope hook members 41 and 42 of the rope hook part 4 are hooked on the anchor cable 10. The anchor cable 10 falls into the bottom of the rope groove through the rope groove, and then the cutting tool is moved along the anchor cable 10 to the bottom of the anchor cable 10. In this process, the guide ring 121 limits the hydraulic oil pipe 331 to prevent it from being damaged by shaking and winding in the complex underwater environment.

[0071] In this embodiment, the hydraulic pump station or the manual hydraulic pump is filled with oil, and the hydraulic oil pushes the first piston rod 31 in the hydraulic oil cylinder 3 to extend. The first piston rod 31 drives the connecting part 34 and the cutting blade 35 to move and cut the bottom of the anchor cable 10. In the cutting process, as the first piston rod 31 moves, the positioning anti-rotation assembly installed on both sides thereof moves synchronously. When the cutting blade 35 approaches the anchor cable 10, the arc-shaped clamping block 53 first contacts the surface of the anchor cable 10 and fits due to elastic deformation. At the same time, the second piston rod 51 slides upward under the reaction force of the anchor cable 10, stretches the second spring 52, and makes the air in the installation cylinder 5 enter the inner cavity of the arc-shaped clamping block 53 and the air bag 531 through the air guide channel 511. The air bag 531 inflates and expands, cooperates with the anti-skid pattern on the bottom wall of the arc-shaped clamping block 53, increases the friction with the anchor cable 10, prevents the anchor cable 10 from rotating, and fixes the anchor cable 10 at a specific position to limit its lateral movement, thereby providing a stable object for cutting and guiding the cutting blade 35 to cut along the correct path.

[0072] In this embodiment, when the cutting blade 35 approaches the anchor cable 10, the arc-shaped clamping block 53 first contacts the surface of the anchor cable 10 and fits due to elastic deformation, can tightly wrap the anchor cable 10, reduce the anchor cable 10 in the cutting direction of the shake, at the same time, the air bag 531 inflates and expands further fills the irregular part of the anchor cable 10 surface, so that the anchor cable 10 is more fixed in position when cutting, thereby ensuring that the cutting blade 35 can cut along the preset path, greatly improving the cutting precision, avoiding the cutting deviation caused by the movement of the anchor cable 10; The first rope hook 41 and the second rope hook 42 fix the anchor cable 10 at a specific position, limit its lateral movement, provide a stable cutting object for the cutting blade 35, effectively prevent the cutting inaccuracy caused by the lateral displacement of the anchor cable 10, and ensure the cutting accuracy; The elastic deformation of the arc-shaped clamping block 53 and the inflation and expansion of the air bag 531 cooperate with the anti-skid lines of the bottom wall, increase the friction with the anchor cable 10, in the underwater environment, the anchor cable 10 may be affected by water flow, water pressure and other external forces, and the increased friction can effectively resist these external forces to prevent the anchor cable 10 from rotating, even in complex underwater working conditions, the relative stability of the anchor cable 10 during cutting can be ensured, so that the cutting process can continue and proceed smoothly, avoiding cutting interruption or tool damage caused by anchor cable 10 rotation; Stable cutting conditions and accurate cutting path make the cutting process more smooth, reducing the need for repeated adjustment of the cutting position or re-cutting due to unstable anchor cable 10, which greatly saves the cutting time and improves the work efficiency, and the underwater anchor cable cutting task can be completed in a shorter time.

[0073] In this embodiment, when the anchor cable 10 is completely cut off, the shore personnel pull up the upper anchor cable 10, and the operator recovers the cutting tool, at this time, the manual pressure relief valve on the hydraulic pump station or the manual hydraulic pump is opened, the pressure of the hydraulic system is released, the first spring 32 is elastically reset, the first piston rod 31 is retracted, the cutting tool returns to the initial open state, the bottom cutting process of the entire anchor cable 10 is completed, and the elastic force of the second spring 52 makes the second piston rod 51 slide downward and reset, at this time, the air in the air bag 531 flows back to the installation cylinder 5 through the air guide channel 511, the air bag 531 contracts, and the arc-shaped clamping block 53 separates from the anchor cable 10, ready for the next cutting.

[0074] In this embodiment, the sliding connection and locking design of the grip part 11 of the handle 1 and the sliding sleeve 12 can flexibly adjust the length of the handle 1 according to the depth of underwater operation, which is convenient for the operator to cut the anchor cable 10 at different depths; the first rope hook part 41 and the second rope hook part 42 of the rope hook part 4 are matched with the cutting blade 35 through a specific gap, which can effectively fix the anchor cable 10 through the rope groove, limit its transverse movement, guide the precise cutting of the cutting blade 35, reduce the cutting error, and improve the cutting precision; through the cooperation of the arc-shaped clamping block 53, the air bag 531 and the anti-skid pattern, through elastic deformation fitting, inflation and increasing friction, the rotation of the anchor cable 10 during cutting is effectively prevented, and the cutting stability and quality are guaranteed.

[0075] In this embodiment, the underwater anchor cable 10 can also be accurately positioned by matching the camera or sonar, which enhances its operation ability in complex underwater environment. In complex underwater environment, the light is dim, the visibility is low, and the flow, silt and other factors will interfere with the operator's judgment of the position of the anchor cable 10. At this time, the camera or sonar is matched with the underwater cutting equipment, which can greatly enhance its operation ability. The camera can shoot underwater pictures in real time, and the actual situation of the anchor cable 10 is clearly transmitted to the display terminal of the operator. Even in turbid water, the specific position and shape of the anchor cable 10 can be locked through image analysis. The sonar uses the principle of sound wave reflection to penetrate water and obstacles to present the position information of the anchor cable 10 in the form of sound wave image, which is especially suitable for deep water area where light cannot reach or environment with obstacles. Through these devices, the operator can plan the cutting path in advance, accurately control the rope hook part 4 to reach the bottom of the anchor cable 10, avoid low efficiency or equipment damage caused by blind operation, and make the underwater cutting equipment successfully complete the accurate positioning and cutting of the anchor cable 10 in the dark current surging and complex underwater environment, which significantly improves the success rate and safety of the operation.

[0076] In the cutting process of the bottom of the anchor cable 10 in this embodiment, the first rope hook 41 is above the anchor cable 10, and as the hydraulic cylinder 3 is started, the first piston rod 31 drives the cutting blade 35 to cut the anchor cable 10 downward, and in the process of the cutting blade 35 descending, the rack part 351 of the side wall thereof will be engaged with the corresponding gear 62, and the gear 62 will be driven to rotate, and then the connecting shaft 61 will make the pressing plate 6 extend out of the containing groove 411, and after the anchor cable 10 is cut into two segments, the side walls of the two pressing plates 6 will be just in abutment with the outer side wall of the upper segment of the anchor cable 10, so as to realize the clamping of the broken rope. This design makes the action of the pressing plate 6 synchronous with the cutting process, and no additional power source is needed, and the broken rope clamping function is cleverly realized through mechanical transmission. In the underwater environment, if the anchor cable 10 is not fixed in time after being cut, it will easily drift due to the water flow and other factors, and may be entangled with other equipment or cause interference to the subsequent operation. The broken rope clamping assembly clamps the upper segment of the anchor cable in time, effectively avoids the occurrence of such a situation, ensures the orderliness of the underwater operation environment, provides convenience for the subsequent salvage, cleaning and other work, and improves the overall operation efficiency.

[0077] In this embodiment, the first rope hook 41 is above as a premise, and after the hydraulic cylinder 3 is started, the first piston rod 31 drives the cutting blade 35 to descend to perform the cutting task, the rack part 351 of the side wall of the cutting blade 35 is engaged with the gear 62, the linear motion of the cutting blade 35 is converted into the rotary motion of the gear 62, and then the connecting shaft 61 drives the pressing plate 6 to extend out of the containing groove 411, so as to realize the clamping of the upper segment of the anchor cable 10. After the anchor cable 10 is cut, the side wall of the pressing plate 6 is in abutment with the outer side wall of the upper segment of the anchor cable 10, cooperates with the arc-shaped clamping block 53 and the air bag 531 in the positioning anti-rotation assembly, forms multi-directional clamping force, the arc-shaped clamping block 53 elastically fits the surface of the anchor cable 10, and the air bag 531 is inflated and expanded to further fill the gap, increase the contact area and friction force; the pressing plate 6 applies pressure from the side, and the three work together to ensure that the upper segment of the anchor cable is clamped firmly, and even in the complex underwater environment such as water flow impact, the stable clamping state can be maintained.

[0078] In this embodiment, since only the pressing plate 6 on the first rope hook 41 participates in clamping, the lower segment of the anchor cable lacks the extrusion action of the pressing plate 6, and when the cutter moves upward, the upper segment of the anchor cable is clamped and fixed, while the lower segment of the anchor cable cannot be driven, so as to realize the effective separation of the upper and lower segments, avoid the accidental lifting of the lower segment of the anchor cable, and ensure the accuracy and safety of the operation; the broken rope clamping assembly is synchronous with the cutting process, and the operator does not need to operate the clamping device additionally, so time is saved and the operation efficiency is improved. At the same time, the interference caused by the drifting and entanglement of the broken rope is effectively avoided, the time wasted in handling unexpected situations is reduced, the subsequent salvage, cleaning and other work can be carried out quickly, and the smooth progress of the entire underwater operation process is ensured.

[0079] In this embodiment, the specific model and specification of the hydraulic cylinder 3 need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0080] Embodiment 2

[0081] The embodiment provides an underwater anchor cable cutting method using the underwater anchor cable cutting device, and comprises the following steps:

[0082] Step 1, the hydraulic oil pipe 331 with a manual pressure relief valve on the hydraulic pump station is inserted through the guide ring 121 on the handle 1, connected with the hydraulic cylinder 3 through the quick connector 33, and the connection of the hydraulic system is completed. The operator holds the handle 1, controls the sliding of the holding part 11 along the sliding sleeve 12 and fixes it through the locking part 111, adjusts the length of the handle 1 to adapt to the underwater operation requirements at different depths, inserts the cutting blade 35 into the water, hooks the anchor cable 10 by using the first rope hook part 41 and the second rope hook part 42 of the rope hook part 4, and the anchor cable 10 gradually falls into the bottom of the rope groove through the rope groove, and then the cutting blade 35 is moved along the anchor cable 10 to the bottom of the anchor cable 10;

[0083] Step 2, the hydraulic pump station or the manual hydraulic pump is filled with oil, the hydraulic oil drives the first piston rod 31 in the hydraulic cylinder 3 to elongate, the first piston rod 31 drives the connecting part 34 and the cutting blade 35 to move, and the bottom of the anchor cable 10 is cut. During the cutting process, when the cutting blade 35 approaches the anchor cable 10, the arc-shaped clamp block 53 first contacts the surface of the anchor cable 10 and is fitted due to elastic deformation, and at the same time, the second piston rod 51 slides upward under the reaction force of the anchor cable 10, stretches the second spring 52, so that the air in the mounting cylinder 5 enters the inner cavity of the arc-shaped clamp block 53 and the air bag 531 through the air guide channel 511, the air bag 531 inflates and expands, cooperates with the anti-skid lines on the bottom wall of the arc-shaped clamp block 53, increases the friction with the anchor cable 10, and prevents the anchor cable 10 from rotating;

[0084] Step 3, during the descent of the cutting blade 35, the rack part 351 of the side wall thereof is engaged with the corresponding gear 62, and drives the gear 62 to rotate, and then drives the pressing plate 6 to extend out of the containing groove 411 through the connecting shaft 61; when the anchor cable 10 is cut into two segments, the side walls of the two pressing plates 6 abut against the outer side wall of the upper segment of the anchor cable 10, so as to clamp the broken rope, and after the anchor cable 10 is cut, it is fixed in time, which provides convenience for subsequent salvage, cleaning and other work.

[0085] The above embodiment only expresses several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An underwater anchor cable cutting device, characterized in that, The device includes a handle (1), a lower mounting plate (21), a hydraulic cylinder (3), a rope hook (4), a positioning anti-rotation component, and a rope breakage clamping component. The rope hook (4) includes a first rope hook (41) and a second rope hook (42). The bottom of the handle (1) is connected to an upper mounting plate (2). The tops of the hydraulic cylinder (3), the first rope hook (41), and the second rope hook (42) are all fixedly installed on the bottom of the lower mounting plate (21). The upper mounting plate (2) and the lower mounting plate (21) are fixed together by bolts. The hydraulic cylinder (3) has a first piston rod (31) slidably connected inside. The end of the first piston rod (31) is fixedly connected to a connecting part (34). A cutting blade (35) for cutting the anchor cable (10) is installed on the connecting part (34). Driven by the hydraulic cylinder (3), the first piston rod (31) drives the connecting part (34) and the cutting blade (35) to move, cutting the anchor cable (10) into upper and lower sections. The positioning anti-rotation component is set on both sides of the cutting blade (35) and sleeved on the first piston rod (31). It moves synchronously with the cutting blade (35) to position the anchor cable (10) and prevent the anchor cable (10) from rotating. The broken rope clamping component is set on the cutting blade (35) and the first rope hook (41) to clamp the upper section of the anchor cable (10). The positioning anti-rotation component includes two connecting plates (50). Each side of the connecting plate (50) is connected to an installation cylinder (5). The two connecting plates (50) are fixed into a whole by screws and sleeved on the first piston rod (31). The bottom of the connecting plate (50) abuts against the top of the connecting part (34). The interior of the mounting cylinder (5) is hollow. The interior of the mounting cylinder (5) is slidably sealed with a second piston rod (51). The top piston of the second piston rod (51) is elastically connected to the inner bottom wall of the mounting cylinder (5) by a second spring (52). The lower end of the second piston rod (51) penetrates the bottom wall of the mounting cylinder (5). The lower ends of the two second piston rods (51) on the same side of the connecting part (34) are connected to the same arc-shaped clamp (53). The interiors of the second piston rod (51) and the arc-shaped clamp (53) are hollow. Two air bladders (531) are symmetrically installed on the bottom wall of the arc-shaped clamp (53). The air bladders (531) are sealed to the inner cavity of the arc-shaped clamp (53). The inner cavity of the mounting cylinder (5) located above the piston at the top of the second piston rod (51) is connected to the inner cavities of the arc-shaped clamp (53) and the air bladders (531) through the air guide channel (511). The broken rope clamping assembly includes two pressure plates (6) and two symmetrically opened receiving slots (411) in the first rope hook (41). The lower end of the pressure plate (6) is connected to a connecting shaft (61). The connecting shaft (61) is located between the first rope hook (41) and the second rope hook (42). A gear (62) is fixedly connected to the connecting shaft (61). The side wall of the pressure plate (6) and the bottom wall of the corresponding receiving slot (411) are elastically connected by a bending spring (63). A rack part (351) is provided on the side wall of the cutting blade (35) facing the corresponding gear (62). The rack part (351) and the gear (62) are meshed together.

2. The underwater anchor cable cutting device according to claim 1, characterized in that, The handle (1) includes a grip (11) and a sliding sleeve (12); the lower end of the sliding sleeve (12) is fixedly connected to the top of the upper mounting plate (2); the side wall of the grip (11) is threaded with a locking member (111); the side wall of the sliding sleeve (12) is provided with a limiting groove (122) that matches the locking member (111); the grip (11) and the sliding sleeve (12) are slidably connected, and are locked by engaging the locking member (111) with the limiting groove (122).

3. The underwater anchor cable cutting device according to claim 2, characterized in that, The hydraulic cylinder (3) is equipped with a quick-connect fitting (33), and a hydraulic oil pipe (331) is installed inside the quick-connect fitting (33). Several guide rings (121) for limiting the hydraulic oil pipe (331) are installed on the side wall of the sliding sleeve (12). The hydraulic oil pipe (331) is arranged on the sliding sleeve (12) through the guide rings (121). One end is connected to the hydraulic pump station or manual hydraulic pump through a manual pressure relief valve, and the other end is connected to the hydraulic cylinder (3) through the quick-connect fitting (33). The top piston of the first piston rod (31) is elastically connected to the inner bottom wall of the hydraulic cylinder (3) through a first spring (32).

4. The underwater anchor cable cutting device according to claim 1, characterized in that, The first rope hook (41) and the second rope hook (42) are located on the left and right sides of the cutting blade (35), respectively. The gap between the first rope hook (41) and the second rope hook (42) matches the thickness of the cutting blade (35). One side of the cutting blade (35) is located in the gap between the first rope hook (41) and the second rope hook (42).

5. The underwater anchor cable cutting device according to claim 1, characterized in that, When the cutting blade (35) cuts the anchor cable (10), the bottom wall of the arc-shaped clamp (53) and the bottom wall of the airbag (531) are both in contact with the surface of the anchor cable (10). The arc-shaped clamp (53) is elastically set, and the bottom wall of the arc-shaped clamp (53) is provided with anti-slip texture.

6. The underwater anchor cable cutting device according to claim 1, characterized in that, Both the first rope hook (41) and the second rope hook (42) are provided with through holes that match the connecting shaft (61), and the two sides of the gear (62) abut against the side walls of the first rope hook (41) and the second rope hook (42) respectively. When the cutting blade (35) is above the anchor cable (10), the bending spring (63) is in its initial state and the pressure plate (6) is stored in the corresponding receiving groove (411); When the hydraulic cylinder (3) is not started, the gap between the top of the pressure plate (6) and the arc-shaped clamp (53) is greater than the diameter of the anchor cable (10); After the cutting blade (35) cuts the anchor cable (10) into upper and lower sections, the sidewalls of the two pressure plates (6) abut against the outer sidewall of the upper section of the anchor cable (10).

7. A method for cutting underwater anchor cables, characterized in that, Using the underwater anchor cable cutting device according to any one of claims 1-6 includes the following steps: Step 1: The construction worker holds the handle (1), adjusts the length of the handle (1) to adapt to the needs of underwater operations at different depths, inserts the cutting blade (35) into the water, and uses the first rope hook (41) and the second rope hook (42) of the rope hook part (4) to hook the anchor cable (10). Then, the cutting blade (35) is moved along the anchor cable (10) to the bottom of the anchor cable (10). Step 2: Hydraulic oil is introduced into the hydraulic cylinder (3). The hydraulic oil pushes the first piston rod (31) inside the hydraulic cylinder (3) to extend. The first piston rod (31) drives the connecting part (34) and the cutting blade (35) to move and cut the bottom of the anchor cable (10). During the cutting process, the positioning anti-rotation component moves synchronously with the cutting blade (35) to position the anchor cable (10) and prevent the anchor cable (10) from rotating. Step 3: After the anchor cable (10) is cut into two sections, the broken rope clamping assembly clamps the upper section of the anchor cable (10).

Images