Submarine cable outer sheath attached organism cleaning device

Abstract

The invention discloses a submarine cable outer sheath attached organism cleaning device, and relates to the technical field of submarine cable cleaning devices.The submarine cable outer sheath attached organism cleaning device comprises a cleaning device shell and a swing arm type friction walking mechanism, the cleaning device shell is of a cylindrical sleeve structure, and a horn-shaped extrusion part is arranged at the front end of the cleaning device shell; a rolling supporting shaft making contact with a submarine cable outer sheath is arranged above the inner side of the cleaning device shell. The swing arm type friction walking mechanism comprises swing arms symmetrically arranged on the two sides of the submarine cable outer sheath, a half-gear transmission assembly installed on the lower portion of the inner side of the cleaning device shell and a driving impeller driven by ocean current, and the driving impeller is in driving connection with the swing arms on the two sides through the half-gear transmission assembly and used for driving the swing arms to swing. And the device is driven to advance through the friction force with the submarine cable outer sheath. The marine organisms attached to the surface of the submarine cable outer sheath can be removed efficiently, safely and environmentally, and the problems of submarine cable damage, low efficiency and environmental pollution caused by a traditional cleaning mode are solved.

Description

Technical Field

[0001] This application relates to the technical field of submarine cable cleaning devices, and in particular, to a cleaning device for marine organisms attached to the outer sheath of a submarine cable. Background Art

[0002] With the rapid development of the global offshore wind power industry, submarine cables (hereinafter referred to as "submarine cables"), as the core infrastructure for offshore energy and communication transmission, their safe and stable operation is crucial. Submarine cables undertake the power and data transmission tasks between the fan platforms of offshore wind farms, booster stations, and onshore control centers, and are the key link for the development of deep-sea and large-scale wind power. However, submarine cables have been in service in a complex seabed environment for a long time, and a large number of marine organisms (such as shellfish, algae, microorganisms, etc.) are extremely likely to attach to the surface of their outer sheaths, forming a dense biological layer.

[0003] Biological attachment causes multiple hazards to the performance of submarine cables: on the one hand, the attached biological layer significantly increases the self-weight of the submarine cable, resulting in an increase in the tension borne by the submarine cable, exacerbating its mechanical loss under dynamic loads such as ocean currents and tides, reducing flexibility and increasing the risk of fracture; on the other hand, the thermal resistance formed by the biological layer will disrupt the temperature field distribution of the submarine cable, leading to heat accumulation, increased resistance when transmitting electric energy internally, exacerbating power loss and possibly causing local overheating, threatening insulation safety. In addition, biological attachment may also cause electrochemical corrosion, further shortening the service life of the submarine cable.

[0004] At present, there are obvious defects in the cleaning methods for biological attachment on the outer sheath of submarine cables: traditional manual cleaning has low efficiency, high cost, and is prone to physical damage to the outer sheath of the submarine cable; chemical cleaning methods may pollute the marine environment and do not meet the requirements of green environmental protection; existing mechanical automation devices have problems such as poor adaptability and incomplete cleaning. Therefore, there is an urgent need for an efficient, safe, and environmentally friendly cleaning device for marine organisms attached to the outer sheath of submarine cables to solve the deficiencies in the existing technology and ensure the long-term reliable operation of submarine cables. For this reason, the present invention proposes a cleaning device for marine organisms attached to the outer sheath of a submarine cable. Summary of the Invention

[0005] The embodiments of this application provide a cleaning device for marine organisms attached to the outer sheath of a submarine cable, which can efficiently, safely, and environmentally friendly remove the marine organisms attached to the surface of the outer sheath of the submarine cable, avoiding problems such as cable damage, low efficiency, and environmental pollution caused by traditional cleaning methods.

[0006] In view of this, this application provides a cleaning device for marine organisms attached to the outer sheath of a submarine cable, including: a cleaning device housing for coaxially sleeving on the outer sheath of the submarine cable and a swing-arm friction walking mechanism provided on the cleaning device housing;

[0007] The cleaning device housing has a cylindrical sleeve structure, and a horn-shaped extrusion member is provided at the front end of the cleaning device housing;

[0008] The large-mouth end of the horn-shaped extruder is fixedly connected to the front end of the cleaning device housing, and the inner side of the small-mouth end is attached to the outer sheath of the submarine cable, for extruding the marine organisms attached to the outer sheath of the submarine cable;

[0009] A rolling support shaft is arranged above the inner side of the cleaning device housing;

[0010] The outer surface of the rolling support shaft contacts the outer sheath of the submarine cable, for supporting the device and assisting the device to move along the submarine cable by rolling friction;

[0011] The swing-arm friction walking mechanism includes swing arms symmetrically arranged on both sides of the outer sheath of the submarine cable, a semi-gear transmission assembly installed below the inner side of the cleaning device housing, and a driving impeller for rotating under the action of the ocean current;

[0012] The driving impeller is located directly below the cleaning device housing, and the driving impeller is drivingly connected to the swing arm through the semi-gear transmission assembly, for driving the swing arm to swing, so as to drive the device forward through the friction force between the swing arm and the outer sheath of the submarine cable.

[0013] Optionally, the swing arm includes a swing rod and an elastic friction block;

[0014] The elastic friction block is fixed at an angle in the horizontal direction on the side of the swing rod close to the outer sheath of the submarine cable, and the elastic friction block is in close contact with the outer sheath of the submarine cable, so that the elastic friction block only generates an effective driving friction force in a single direction during the swinging process of the swing rod.

[0015] Optionally, the semi-gear transmission assembly includes a vertical transmission shaft rotatably arranged at the bottom of the inner side of the cleaning device housing and a horizontal transmission shaft rotatably arranged in the cleaning device housing;

[0016] The horizontal transmission shaft is directly above the vertical transmission shaft;

[0017] One end of the vertical transmission shaft close to the horizontal transmission shaft is provided with a first semi-gear structure, and the end of the vertical transmission shaft far from the horizontal transmission shaft is coaxially connected to the driving impeller;

[0018] Correspondingly arranged on the horizontal transmission shaft are a second semi-gear structure and a third semi-gear structure for cooperating with the first semi-gear structure;

[0019] The second semi-gear structure and the third semi-gear structure are centrosymmetric, and both the second semi-gear structure and the third semi-gear structure are meshed and connected to the first semi-gear structure;

[0020] The number of the swing arms is two, and the two swing arms are symmetrically fixed at both ends of the horizontal transmission shaft in the vertical direction.

[0021] Optionally, the drive impeller includes a first central shaft arranged vertically and a plurality of blades uniformly installed on the first central shaft in the circumferential direction.

[0022] Optionally, a biaxial composite energy conversion device is fixed to the bottom of the cleaning device housing through a fixing frame;

[0023] The biaxial composite energy conversion device includes an energy storage unit, an upper shaft drive unit and a lower shaft power generation unit arranged coaxially;

[0024] The lower shaft power generation unit is electrically connected to the energy storage unit;

[0025] The energy storage unit is electrically connected to the upper shaft drive unit;

[0026] The biaxial composite energy conversion device is located directly below the drive impeller, and the upper shaft drive unit is coaxially drivingly connected to the drive impeller;

[0027] The lower shaft power generation unit is coaxially connected with a power generation impeller.

[0028] Optionally, the fixing frame includes horizontal connecting plates symmetrically fixed on both sides of the cleaning device housing in the radial direction of the cleaning device housing, a horizontal fixing disk arranged directly below the drive impeller, and support columns arranged between the horizontal connecting plates and the horizontal fixing disk;

[0029] One end of the support column is fixedly connected to the lower surface of the horizontal connecting plate, and the other end is fixedly connected to the upper surface of the horizontal fixing disk;

[0030] The biaxial composite energy conversion device is fixedly arranged on the horizontal fixing disk;

[0031] The power generation impeller is located below the horizontal fixing disk.

[0032] Optionally, the power generation impeller includes a second central shaft arranged vertically and a plurality of blades uniformly installed on the second central shaft in the circumferential direction;

[0033] The upper end of the second central shaft is fixedly connected to the lower shaft power generation unit.

[0034] Optionally, the installation angle of the blade is 30°.

[0035] Optionally, the number of the rolling support shafts is multiple;

[0036] The multiple rolling support shafts are uniformly distributed in the circumferential direction.

[0037] Optionally, the rolling support shaft is a gear shaft.

[0038] As can be seen from the above technical solutions, the embodiments of the present application have the following advantages: The biological cleaning device attached to the outer sheath of the submarine cable can effectively extrude marine organisms by setting a horn-shaped extrusion member, avoiding the problems of low efficiency, high cost and physical damage in manual cleaning, and at the same time overcoming the pollution defects of chemical cleaning. The rolling support shaft uses rolling friction to assist the movement of the device, which can reduce resistance and improve the movement stability. In the swing-arm friction walking mechanism, the driving impeller rotates by means of the ocean current, drives the swing arms on both sides to swing through the semi-gear transmission assembly, and drives the device forward by using friction. Compared with the existing mechanical devices, it has stronger adaptability and more stable movement, can ensure efficient and continuous cleaning, improve the cleaning effect, and ensure the reliable operation of the submarine cable. In addition, the device does not require manual intervention, can effectively reduce costs and avoid chemical pollution, and thus achieve the goals of efficient, safe and environmentally friendly cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 FIG. is a schematic structural diagram of the biological cleaning device attached to the outer sheath of the submarine cable in the embodiment of the present application when in use;

[0040] Figure 2 FIG. is a front view of the biological cleaning device attached to the outer sheath of the submarine cable in the embodiment of the present application when in use;

[0041] Figure 3 FIG. is a side view of the biological cleaning device attached to the outer sheath of the submarine cable in the embodiment of the present application when in use;

[0042] Figure 4 FIG. is a top view of the biological cleaning device attached to the outer sheath of the submarine cable in the embodiment of the present application when in use;

[0043] Figure 5 FIG. is a schematic structural diagram of the connection between the semi-gear transmission assembly and the swing arm in the embodiment of the present application;

[0044] Figure 6 FIG. is a schematic structural diagram of the connection between the swing rod, the elastic friction block and the outer sheath of the submarine cable in the embodiment of the present application.

[0045] Among them, the reference numerals are:

[0046] 1 - submarine cable, 2 - cleaning device housing, 3 - rolling support shaft, 4 - semi-gear transmission assembly, 41 - vertical transmission shaft, 42 - horizontal transmission shaft, 43 - first semi-gear structure, 44 - second semi-gear structure, 45 - third semi-gear structure, 5 - elastic friction block, 6 - swing rod, 7 - driving impeller, 8 - horn-shaped extrusion member, 9 - dual-axis composite energy conversion device, 10 - horizontal fixed disk, 11 - power generation impeller, 12 - support column, 13 - blade, 14 - horizontal connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0048] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0049] Unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] This application provides an embodiment of a biological cleaning device for attaching to the outer sheath of a submarine cable. For details, please refer to Figures 1 to 3 .

[0051] The device for cleaning organisms attached to the outer sheath of the submarine cable in this embodiment includes: a cleaning device housing 2 coaxially sleeved on the outer sheath of the submarine cable 1, and a swing-arm friction walking mechanism arranged on the cleaning device housing 2. The cleaning device housing 2 is in a cylindrical sleeve structure, and a horn-shaped extrusion member 8 is arranged at the front end of the cleaning device housing 2. The large-mouth end of the horn-shaped extrusion member 8 is fixedly connected to the front end of the cleaning device housing 2, and the inner side of the small-mouth end is attached to the outer sheath of the submarine cable 1 for extruding the marine organisms attached to the outer sheath of the submarine cable 1. Above the inner side of the cleaning device housing 2, a rolling support shaft 3 is arranged. The outer surface of the rolling support shaft 3 contacts the outer sheath of the submarine cable 1 for supporting the device and assisting the device to move along the submarine cable 1 through rolling friction. The swing-arm friction walking mechanism includes swing arms symmetrically arranged on both sides of the outer sheath of the submarine cable 1, a half-gear transmission assembly 4 installed below the inner side of the cleaning device housing 2, and a driving impeller 7 for rotating under the action of the ocean current. The driving impeller 7 is located directly below the cleaning device housing 2, and the driving impeller 7 is drivingly connected to the swing arms through the half-gear transmission assembly 4 for driving the swing arms on both sides to swing, so as to drive the device forward through the friction between the swing arms and the outer sheath of the submarine cable 1.

[0052] It should be noted that: by setting the horn-shaped extrusion member 8, the device for cleaning organisms attached to the outer sheath of the submarine cable can effectively extrude the marine organisms, avoiding the problems of low efficiency, high cost and physical damage in manual cleaning, and at the same time overcoming the pollution defects in chemical cleaning. The rolling support shaft 3 assists the device to move through rolling friction, which can reduce the resistance and improve the moving stability. In the swing-arm friction walking mechanism, the driving impeller 7 rotates by means of the ocean current and drives the swing arms on both sides of the outer sheath of the submarine cable 1 to swing through the half-gear transmission assembly 4, and drives the device forward by using the friction force. Compared with the existing mechanical devices, it has stronger adaptability and more stable movement, can ensure efficient and continuous cleaning, improve the cleaning effect, and ensure the reliable operation of the submarine cable 1. In addition, the device does not require manual intervention, can effectively reduce costs and avoid chemical pollution, and thus achieve the goals of efficient, safe and environmental protection cleaning.

[0053] The above is the first embodiment of a device for cleaning organisms attached to the outer sheath of a submarine cable provided by this application. The following is the second embodiment of a device for cleaning organisms attached to the outer sheath of a submarine cable provided by this application. For details, please refer to Figures 1 to 6 .

[0054] The device for cleaning organisms attached to the outer sheath of the submarine cable in this embodiment includes: a cleaning device housing 2 coaxially sleeved on the outer sheath of the submarine cable 1 and a swing-arm friction walking mechanism arranged on the cleaning device housing 2. The cleaning device housing 2 is in a cylindrical sleeve structure, and a horn-shaped extrusion member 8 is arranged at the front end of the cleaning device housing 2; the large-mouth end of the horn-shaped extrusion member 8 is fixedly connected to the front end of the cleaning device housing 2, and the inner side of the small-mouth end is attached to the outer sheath of the submarine cable 1. The horn-shaped extrusion member 8 can use the extrusion effect generated by the tapered cross-section to peel off the organisms attached to the outer sheath of the submarine cable 1; a rolling support shaft 3 is arranged above the inner side of the cleaning device housing 2, and the outer surface of the rolling support shaft 3 contacts the outer sheath of the submarine cable 1, which is used to support the device and assist the device to move along the submarine cable 1 through rolling friction, helping the device to move forward stably on the submarine cable 1 and ensuring the continuity of the cleaning work; the swing-arm friction walking mechanism includes swing arms symmetrically arranged on both sides of the outer sheath of the submarine cable 1, a semi-gear transmission assembly 4 installed below the inner side of the cleaning device housing 2, and a driving impeller 7 for rotating under the action of the ocean current. The semi-gear transmission assembly 4 is used to convert the rotational motion of the driving impeller 7 into the swinging motion of the swing arms; the driving impeller 7 is located directly below the cleaning device housing 2, and the driving impeller 7 drives and connects the swing arms on both sides of the outer sheath of the submarine cable 1 through the semi-gear transmission assembly 4, which is used to drive the swing arms to swing, so as to drive the device forward through the friction between the swing arms and the outer sheath of the submarine cable 1. Preferably, the small-mouth end of the horn-shaped extrusion member 8 can be attached to the surface of the outer sheath of the submarine cable 1 through an elastic sealing ring, which can improve the extrusion effect while not damaging the submarine cable 1.

[0055] It can be understood that the cleaning device housing 2 is in a cylindrical sleeve structure, which is beneficial to reducing resistance in seawater and facilitating the movement of the device along the submarine cable 1; during the movement of the device along the submarine cable 1, the horn-shaped extrusion member 8 can directly contact the organisms attached to the outer sheath of the submarine cable 1, and extrude the attached organisms from the surface of the outer sheath of the submarine cable 1 through the forward thrust of the device, so as to achieve the cleaning effect; the rolling support shaft 3 is installed above the inner side of the cleaning device housing 2, and the semi-gear transmission assembly 4 is installed below the inner side, providing an installation basis and movement space for other components inside the device.

[0056] The swing arm includes a swing rod 6 and an elastic friction block 5. The elastic friction block 5 is fixed at an angle in the horizontal direction on the side of the swing rod 6 close to the outer sheath of the submarine cable 1, and the elastic friction block 5 is in close contact with the outer sheath of the submarine cable 1, so that the elastic friction block 5 generates an effective driving frictional force only in a single direction during the swinging process of the swing rod 6. Specifically, the swing rod 6 plays a role in supporting and fixing the elastic friction block 5, and the material of the swing rod 6 can be metal; the elastic friction block 5 can be a rubber gasket. By using the high friction characteristic of rubber, it provides the frictional force required for the device to move forward. At the same time, the rubber gasket has a certain flexibility, which can avoid damaging the outer sheath of the submarine cable 1 while ensuring the frictional force; the thickness and hardness of the rubber gasket can be selected according to the material and surface condition of the submarine cable 1 to provide appropriate frictional force.

[0057] It can be understood that there is a certain included angle between the elastic friction block 5 and the outer sheath of the submarine cable 1. When the elastic friction block 5 moves along the acute angle direction, its deformation amount during the movement is small, and the frictional force between it and the outer sheath of the submarine cable 1 is not enough to drive the device to move. However, when the elastic friction block 5 moves along the obtuse angle direction, it will be deformed and extruded during the movement, increasing the contact pressure between it and the outer sheath of the submarine cable 1, and then generating a larger frictional force to drive the device forward.

[0058] The half-gear transmission assembly 4 includes a vertical transmission shaft 41 rotatably arranged at the inner bottom of the cleaning device housing 2 and a horizontal transmission shaft 42 rotatably arranged in the cleaning device housing 2. The horizontal transmission shaft 42 is located directly above the vertical transmission shaft 41. One end of the vertical transmission shaft 41 close to the horizontal transmission shaft 42 is provided with a first half-gear structure 43, and the end of the vertical transmission shaft 41 far from the horizontal transmission shaft 42 is coaxially connected to the drive impeller 7; correspondingly arranged on the horizontal transmission shaft 42 are a second half-gear structure 44 and a third half-gear structure 45 for cooperating with the first half-gear structure 43. The second half-gear structure 44 and the third half-gear structure 45 are centrosymmetric, and both the second half-gear structure 44 and the third half-gear structure 45 are meshed with the first half-gear structure 43; the number of swing arms is two, and the two swing arms are symmetrically fixed at both ends of the horizontal transmission shaft 42 in the vertical direction.

[0059] It should be noted that: when the drive impeller 7 drives the vertical transmission shaft 41 to rotate, the first half-gear structure 43 arranged at the top of the vertical transmission shaft 41 will first mesh with the second half-gear structure 44 on one side (at this time, the third half-gear structure 45 on the other side is disengaged from the mesh), and at this time the horizontal transmission shaft 42 will drive the swing arms on both sides to swing in the first direction; as the first half-gear structure 43 continues to rotate, the first half-gear structure 43 disengages from the second half-gear structure 44 and enters into mesh with the third half-gear structure 45 on the other side. At this time, the horizontal transmission shaft 42 will drive the swing arms on both sides to swing in the second direction opposite to the first direction. Through the switching of the above meshing relationship, the synchronous forward and backward swinging of the swing arms on both sides is realized.

[0060] The driving impeller 7 includes a first central axis arranged vertically and a plurality of blades 13 uniformly installed on the first central axis in the circumferential direction. Specifically, the upper end of the first central axis is fixedly connected to the lower end of the vertical transmission shaft 41; the number of the blades 13 can be adjusted according to actual needs and is not limited herein.

[0061] At the bottom of the cleaning device housing 2, a dual-axis composite energy conversion device 9 is fixed through a fixing frame. The dual-axis composite energy conversion device 9 includes an energy storage unit, an upper shaft driving unit and a lower shaft power generation unit arranged coaxially. The lower shaft power generation unit is electrically connected to the energy storage unit, and the energy storage unit is electrically connected to the upper shaft driving unit; the dual-axis composite energy conversion device 9 is located directly below the driving impeller 7, and the upper shaft driving unit is coaxially drivingly connected to the driving impeller 7; the lower shaft power generation unit is coaxially connected with a power generation impeller 11. During use, the ocean current drives the power generation impeller 11 to rotate, and the energy storage unit is charged through the lower shaft power generation unit. Specifically, the dual-axis composite energy conversion device 9 can be an existing ocean current charging motor, which has a unique energy conversion mechanism. Under the action of the ocean current, the motor can be charged. When the device encounters a large resistance and may get stuck during the cleaning process, the charged motor can continue to drive the device forward to ensure the smooth progress of the cleaning work and effectively prevent the device from being unable to complete the cleaning task due to jamming.

[0062] It can be understood that the lower shaft power generation unit is used to convert fluid kinetic energy into electrical energy; the energy storage unit is used to store the electrical energy generated by the lower shaft power generation unit and supply power to the upper shaft driving unit, and the upper shaft driving unit is used to convert electrical energy into mechanical energy for output.

[0063] Specifically, the fixing frame includes horizontal connecting plates 14 symmetrically fixed on both sides of the cleaning device housing 2 along the radial direction of the cleaning device housing 2, a horizontal fixing disk 10 arranged directly below the driving impeller 7, and support columns 12 arranged between the horizontal connecting plates 14 and the horizontal fixing disk 10. One end of the support column 12 is fixedly connected to the lower surface of the horizontal connecting plate 14, and the other end is fixedly connected to the upper surface of the horizontal fixing disk 10; the dual-axis composite energy conversion device 9 is fixedly arranged on the horizontal fixing disk 10, and the power generation impeller 11 is located below the horizontal fixing disk 10. The shape of the horizontal fixing disk 10 can be circular.

[0064] It should be noted that: when installing the dual-axis composite energy conversion device 9, waterproof and sealing measures need to be taken to prevent seawater from entering the interior of the dual-axis composite energy conversion device 9 and causing damage. Specifically, a waterproof sealing ring can be used at the connection between the dual-axis composite energy conversion device 9 and the horizontal fixing disk 10 to prevent seawater from entering the interior of the dual-axis composite energy conversion device 9 along the gap; waterproof sealant can be applied at the wiring part of the dual-axis composite energy conversion device 9 to ensure that the electrical connection part is not eroded by seawater, so as to ensure the normal operation of the dual-axis composite energy conversion device 9 in the marine environment.

[0065] The power generation impeller 11 includes a vertically arranged second central shaft and a plurality of blades 13 uniformly installed on the second central shaft along the circumferential direction. The upper end of the second central shaft is fixedly connected to the lower shaft power generation unit. Specifically, the number of the blades 13 can be adjusted according to actual needs and is not limited herein.

[0066] Preferably, the installation angle of the blade 13 is 30°, enabling it to utilize the ocean current energy to the greatest extent. The material of the blade 13 is corrosion-resistant material to adapt to the complex marine environment. Specifically, the corrosion-resistant material can be selected from nickel-aluminum bronze, carbon fiber composite material, titanium alloy, etc.

[0067] The number of the rolling support shafts 3 is multiple, and the multiple rolling support shafts 3 are uniformly distributed along the circumferential direction. Preferably, the rolling support shaft 3 can be a gear shaft.

[0068] During the actual use process, the biological cleaning device for the submarine cable outer sheath of the present invention is installed on the submarine cable 1. At this time, the ocean current acts on the blades 13 of the power generation impeller 11 and the driving impeller 7, causing the power generation impeller 11 and the driving impeller 7 to rotate. The driving impeller 7 drives the swing arms on both sides of the outer sheath of the submarine cable 1 to swing through the semi-gear transmission assembly 4, providing forward power for the device and enabling the device to move along the submarine cable 1. During the movement of the device, the tapered structure of the horn-shaped extruding member 8 is used to extrude the marine organisms attached to the outer sheath of the submarine cable 1, achieving the purpose of cleaning the submarine cable 1. When encountering a large resistance that may cause the device to jam, the ocean current drives the power generation impeller 11 to charge the dual-axis composite energy conversion device 9. After being charged, the dual-axis composite energy conversion device 9 drives the driving impeller 7 to rotate, thereby driving the device to continue moving forward to ensure the smooth progress of the cleaning work.

[0069] As described above, the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A biological cleaning device for attaching to the outer sheath of a submarine cable, characterized in that, Comprising: A cleaning device housing coaxially sleeved on the outer sheath of the submarine cable and a swing-arm friction walking mechanism arranged on the cleaning device housing; The cleaning device housing is in a cylindrical sleeve structure, and a horn-shaped extrusion member is arranged at the front end of the cleaning device housing; The large-mouth end of the horn-shaped extrusion member is fixedly connected to the front end of the cleaning device housing, and the inner side of the small-mouth end is attached to the outer sheath of the submarine cable for extruding the marine organisms attached to the outer sheath of the submarine cable; A rolling support shaft is arranged above the inner side of the cleaning device housing; The outer surface of the rolling support shaft contacts the outer sheath of the submarine cable, for supporting the device and assisting the device to move along the submarine cable through rolling friction; The swing-arm friction walking mechanism includes swing arms symmetrically arranged on both sides of the outer sheath of the submarine cable, a semi-gear transmission assembly installed below the inner side of the cleaning device housing, and a driving impeller for rotating under the action of the ocean current; The driving impeller is located directly below the cleaning device housing, and the driving impeller is drivingly connected to the swing arm through the semi-gear transmission assembly for driving the swing arm to swing, so as to drive the device forward through the friction between the swing arm and the outer sheath of the submarine cable.

2. The submarine cable outer sheath biological attachment cleaning device according to claim 1, characterized in that, The swing arm includes a swing rod and an elastic friction block; The elastic friction block is fixed at an angle in the horizontal direction on the side of the swing rod close to the outer sheath of the submarine cable, and the elastic friction block is closely attached to the outer sheath of the submarine cable, so that the elastic friction block only generates an effective driving friction force in a single direction during the swinging process of the swing rod.

3. The submarine cable outer sheath biofouling cleaning device according to claim 1, wherein The semi-gear transmission assembly includes a vertical transmission shaft rotatably arranged at the bottom of the inner side of the cleaning device housing and a horizontal transmission shaft rotatably arranged in the cleaning device housing; The horizontal transmission shaft is directly above the vertical transmission shaft; One end of the vertical transmission shaft close to the horizontal transmission shaft is provided with a first semi-gear structure, and the end of the vertical transmission shaft far from the horizontal transmission shaft is coaxially connected to the driving impeller; Correspondingly arranged on the horizontal transmission shaft are a second semi-gear structure and a third semi-gear structure for cooperating with the first semi-gear structure; The second semi-gear structure and the third semi-gear structure are centrosymmetric, and both the second semi-gear structure and the third semi-gear structure are meshingly connected to the first semi-gear structure; The number of the swing arms is two, and the two swing arms are symmetrically fixed at both ends of the horizontal transmission shaft in the vertical direction.

4. The submarine cable outer sheath biofouling cleaning device according to claim 1, wherein, The driving impeller includes a vertically arranged first central shaft and a plurality of blades uniformly installed on the first central shaft in the circumferential direction.

5. The submarine cable outer sheath biological attachment cleaning device according to claim 1, characterized in that A double-axis composite energy conversion device is fixed to the bottom of the cleaning device housing through a fixing frame; The double-axis composite energy conversion device includes an energy storage unit, and an upper-axis driving unit and a lower-axis power generation unit coaxially arranged; The lower-axis power generation unit is electrically connected to the energy storage unit; The energy storage unit is electrically connected to the upper-axis driving unit; The double-axis composite energy conversion device is located directly below the driving impeller, and the upper-axis driving unit is coaxially drivingly connected to the driving impeller; The lower-axis power generation unit is coaxially connected to a power generation impeller.

6. The submarine cable outer sheath biological attachment cleaning device according to claim 5, characterized in that, The fixing frame includes horizontal connecting plates symmetrically fixed on both sides of the cleaning device housing along the radial direction of the cleaning device housing, a horizontal fixing disk arranged directly below the driving impeller, and support columns arranged between the horizontal connecting plates and the horizontal fixing disk; One end of the support column is fixedly connected to the lower surface of the horizontal connecting plate, and the other end is fixedly connected to the upper surface of the horizontal fixing disk; The dual-axis composite energy conversion device is fixedly arranged on the horizontal fixing disk; The power generation impeller is located below the horizontal fixing disk.

7. The seabed cable outer sheath biological attachment cleaning device according to claim 5, wherein, The power generation impeller includes a vertically arranged second central shaft and a plurality of blades uniformly installed on the second central shaft along the circumferential direction; The upper end of the second central shaft is fixedly connected to the lower shaft power generation unit.

8. The submarine cable outer sheath attached biological cleaning device according to claim 4 or 7, characterized in that The installation angle of the blade is 30°.

9. The submarine cable outer sheath biofouling cleaning device according to claim 1, characterized in that The number of the rolling support shafts is multiple; The multiple rolling support shafts are uniformly distributed along the circumferential direction.

10. The submarine cable outer sheath attached biological cleaning device according to claim 1, characterized in that, The rolling support shaft is a gear shaft.

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