Marine rope cleaning device

Abstract

The present invention provides a marine cable cleaning device, comprising: a device body, which is annular and has a through hole; the device body is sleeved on the outer periphery of the cable to be cleaned through the through hole and can move along the cable; a cleaning nozzle is arranged on the device body; the water inlet of the cleaning nozzle is used to connect a high-pressure hose, and the water outlet of the cleaning nozzle faces the through hole to spray high-pressure water flow to the cable. Due to the high-pressure characteristics of the high-pressure water flow, once sprayed, the water flow impact force and cavitation effect can be used to effectively clean the attachments on the cable. Using the above-mentioned cleaning device, the staff can operate on the water surface without disassembling the cable and without affecting the normal function of the cable. At the same time, it does not require divers to clean underwater, and the operation is simple and safe.

Description

Technical Field

[0001] The invention relates to the technical field of marine equipment, and in particular to a marine cable cleaning device. Background Art

[0002] For offshore structures such as ships and cages, their cable devices such as anchor ropes and net tension ropes are located underwater for a long time, which are easily attached to marine organisms such as barnacles, which can easily accelerate the corrosion of metal ropes. In addition, the net tension rope causes the weight of the tension rope to increase, affecting the tensioning force and tensioning effect of the net, causing the slip ring to get stuck when the net is lifted, and easily wearing the net.

[0003] At present, the traditional method is generally to collect the cable on the water surface for cleaning. For example, the prior art discloses an automatic cleaning device for marine cables (patent application number CN201922242271.9), which is used to clean marine cables. It is necessary to clean while collecting the cables, using water to clean, a roller brush to brush, and then rinse off the brushed dirt, and then dry it. For another example, there is a public patent document-a cable cleaning device (patent application number CN201821793695.3) including a cable drum and a rope arrangement mechanism. When cleaning, the cable needs to be collected and wrapped around the cable drum. During the cable winding process, the water pipe moves so that the sprayed water mist is always aimed at the cable, thereby realizing automatic cleaning of the cable.

[0004] Yet above-mentioned cleaning mode can not realize for anchor rope and net clothing tension rope that need to be fixed underwater.To this, usually by diver underwater cleaning, not only cost high, efficiency is low, and danger is also big. Summary of the invention

[0005] The object of the present invention is to provide a marine cable cleaning device, so that the cable can be cleaned underwater without disassembling the cable.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A marine cable cleaning device comprises: a device body, which is annular and has a through hole; the device body is sleeved on the outer circumference of a cable to be cleaned through the through hole and can move along the cable; a cleaning nozzle is arranged on the device body; the water inlet of the cleaning nozzle is used to connect a high-pressure hose, and the water outlet of the cleaning nozzle faces the through hole to spray high-pressure water flow to the cable.

[0008] According to one aspect of the present invention, the marine cable cleaning device further comprises an underwater propeller; the underwater propeller is connected to the device body to push the device body to move along the cable underwater.

[0009] According to one aspect of the present invention, two underwater thrusters are provided and are symmetrically arranged on the device body.

[0010] According to one aspect of the present invention, the marine cable cleaning device further comprises a high-pressure hose and a high-pressure plunger pump, one end of the high-pressure hose is connected to the cleaning nozzle, and the other end is used to connect to the high-pressure plunger pump.

[0011] According to one aspect of the present invention, the interior of the cleaning nozzle is hollow and forms a stepped hole, and the cross-sectional dimension of the stepped hole is gradually reduced in a direction away from the high-pressure hose.

[0012] According to one aspect of the present invention, the marine cable cleaning device further comprises a winch; the winch is fixedly arranged above the water surface, and the high-pressure hose is wound around the winch to lift and lower the device body.

[0013] According to one aspect of the present invention, the device body includes an upper annular body and a lower annular body that are spaced apart from each other and a support column connected to the two annular bodies; the upper annular body and the lower annular body can both be sleeved on the outer circumference of the cable, and a plurality of cleaning nozzles are provided around the circumference of the lower annular body.

[0014] According to one aspect of the present invention, the upper annular body includes an upper quick-release block and a diverter block, both of which are arc-shaped; the arc length of the upper quick-release block is smaller than the arc length of the diverter block, and the upper quick-release block and the diverter block can be spliced ​​and enclosed to form a complete annular structure; removing the upper quick-release block forms a gap, and the gap allows the cable to enter the interior of the annular structure.

[0015] According to one aspect of the present invention, the diverter block has a lower surface facing the lower annular body and an upper surface opposite to the lower surface; the upper surface is provided with at least one diverter inlet, and the lower surface is provided with a plurality of diverter outlets spaced circumferentially along the diverter block, and the diverter inlet and the diverter outlet are interconnected inside the diverter block to form a high-pressure water channel; the diverter inlet is connected to a high-pressure hose, and the diverter outlet is connected to the cleaning nozzle via an adapter and a connecting pipe.

[0016] According to one aspect of the present invention, the lower annular body includes a lower quick-release block and a nozzle fixing block, both of which are arc-shaped; the arc length of the lower quick-release block is smaller than the arc length of the nozzle fixing block, and the lower quick-release block and the nozzle fixing block can be spliced ​​and enclosed to form a complete annular structure; removing the lower quick-release block forms a gap, and the gap allows the cable to enter the interior of the annular structure; the upper quick-release block and the lower quick-release block are opposite to each other up and down.

[0017] According to one aspect of the present invention, the nozzle fixing block is provided with a plurality of fixing holes extending vertically along its thickness direction, the fixing holes are opened toward the upper end of the upper annular body for connecting a high-pressure hose, and the lower end of the fixing holes is opened for connecting the cleaning nozzle.

[0018] According to one aspect of the present invention, the cleaning nozzle is arranged obliquely so that the water outlet of the cleaning nozzle faces inwards to align with the cable.

[0019] According to one aspect of the present invention, the upper annular body and the lower annular body are provided with a plurality of connection holes relative to each other; the upper and lower ends of the support column are respectively inserted into the connection holes, and the surface of the support column is provided with an anti-slip pattern.

[0020] According to one aspect of the present invention, the high-pressure hose may extend downward from the upper annular body to the lower annular body, and the high-pressure hose may be tied to the support column by a cable tie.

[0021] According to one aspect of the present invention, an eye plate for hoisting is provided on the device body.

[0022] It can be seen from the above technical solutions that the marine cable cleaning device provided by the present invention has at least the following advantages and positive effects:

[0023] The device body is annular, and is sleeved on the outer circumference of the cable through a through hole, and can move along the cable. During the movement, the device body can be lowered along the cable to below the water surface, and high-pressure water can be sprayed out through a cleaning nozzle; due to the high-pressure characteristics of the high-pressure water flow, once sprayed out, the water flow impact and cavitation effect can be used to effectively clean the attachments on the cable. With the above cleaning device, the staff can operate on the water surface, without the need for divers to clean underwater, and without the need to bring the cable to the water surface, which does not affect the normal function of the cable, and is easy and safe to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a marine cable cleaning device working underwater in an embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of a marine cable cleaning device being sleeved on a cable in an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of the connection between the diverter block and the nozzle fixing block in an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the connection between the upper quick-release block and the lower quick-release block in an embodiment of the present invention.

[0028] Figure 5 for Figure 2Top view of a marine cable cleaning device.

[0029] Figure 6 Schematic diagram of the structure of the shunt block in an embodiment of the present invention.

[0030] Figure 7 for Figure 6 AA section view of the shunt block.

[0031] Figure 8 for Figure 7 BB section view of the diverter block.

[0032] Fig. 9 for Figure 2 Bottom view of a marine cable cleaning device.

[0033] Fig.10 Schematic cross-sectional view of a cleaning nozzle in an embodiment of the present invention.

[0034] Fig.11 for Fig.10 Enlarged view of point C.

[0035] The following are the descriptions of the reference numerals:

[0036] 200-cables, 300-offshore structures,

[0037] 1-device body, 101-through hole,

[0038] 11-upper annular body, 111-upper quick release block, 112-diverter block, 1121-diverter inlet, 1122-diverter outlet, 1123-channel, 13-lower annular body, 131-lower quick release block, 132-nozzle fixing block, 1321-fixing hole, 15-support column, 151-anti-slip pattern, 161-screw plug, 162-adapter, 171-slot, 172-pin hole, 173-protrusion, 174-pin with hole, 175-opening pin, 181-connecting hole, 182-hexagon socket bolt, 19-eye plate,

[0039] 2-cleaning nozzle, 21-step hole, 211-head, 212-transition part, 213-tail, 23-vacuum area,

[0040] 31-high pressure hose, 32-connecting pipe, 33-cable tie,

[0041] 4- underwater propeller, 41- controller,

[0042] 5-Winch,

[0043] 6- High pressure plunger pump. DETAILED DESCRIPTION

[0044] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0045] A new marine cable cleaning device is invented in order to be able to clean underwater rope locks of offshore structures (offshore structures are artificially constructed offshore detention objects, including offshore platforms, offshore ship artificial islands, oil and gas facilities, buoys and floating docks, etc.) underwater without affecting the normal function of the ropes, while meeting the requirements of good cleaning effect and simplicity of cleaning.

[0046] Please refer to Figure 1 and Figure 2 , which together illustrate the specific structure of a marine cable cleaning device provided by this embodiment. Figure 1 As shown, the cable 200 has an above-water fixing point fixed on the offshore structure 300, and an underwater fixing point fixed on the seabed. The marine cable cleaning device mainly includes a device body 1 and a cleaning nozzle 2. The device body 1 is annular and has a through hole 101. The device body 1 is sleeved on the outer periphery of the cable 200 through the through hole 101 and can move along the cable 200. The cleaning nozzle 2 is arranged on the device body 1; the water inlet of the cleaning nozzle 2 is used to connect the high-pressure hose 31, and the water outlet of the cleaning nozzle 2 faces the through hole 101 to spray high-pressure water to the cable 200.

[0047] like Figure 2 As shown, the device body 1 includes an upper annular body 11 and a lower annular body 13 which are spaced apart from each other and a support column 15 connected to the two annular bodies.

[0048] Both the upper annular body 11 and the lower annular body 13 can be sleeved on the outer circumference of the cable 200 to stably clamp the device on the cable 200. A plurality of cleaning nozzles 2 are arranged on the circumference of the lower annular body 13.

[0049] Please refer to Figure 3 and Figure 4 The upper annular body 11 includes an upper quick-release block 111 and a diverter block 112 both of which are arc-shaped.

[0050] The upper quick-release block 111 and the diverter block 112 can be spliced ​​together to form a complete annular structure, and the through hole 101 of the annular structure is not a common circle, but is approximately a U-shaped runway. Removing the upper quick-release block 111 can form a gap, which can allow the cable 200 to enter the interior of the annular structure.

[0051] Please combine Figure 5The arc length of the upper quick-release block 111 is smaller than that of the diverter block 112, and the central angle corresponding to the upper quick-release block 111 is close to 90 degrees. The volume of the upper quick-release block 111 is smaller than that of the diverter block 112, and the weight is light, which facilitates the disassembly of the upper quick-release block 111 and achieves the purpose of quick disassembly.

[0052] Please refer to Figures 6 to 8 The flow dividing block 112 has a lower surface facing the lower annular body 13 and an upper surface opposite to the lower surface. The upper surface is provided with a flow dividing inlet 1121, and the flow dividing inlet 1121 is connected to the high-pressure hose 31. The lower surface is provided with three flow dividing outlets 1122 spaced along the circumference of the flow dividing block 112, and each flow dividing outlet 1122 is connected to each cleaning nozzle 2 through an adapter 162 and a pipe 32.

[0053] like Figure 8 As shown, the diversion inlet 1121 and the diversion outlet 1122 are interconnected inside the diversion block 112 to form a high-pressure water channel, which divides one water inlet into three water outlets, thereby dispersing and spraying the high-pressure water flow, thereby cleaning the periphery of the cable 200 and improving the uniformity of the cleaning.

[0054] Specifically, during the assembly process, a diversion inlet 1121 and three diversion outlets 1122 are drilled on the diversion block 112, and each port is NPT pipe thread (National Pipe Thread, cylindrical pipe thread) for sealing connection with the high-pressure hose 31. Each port is connected through mutually perpendicular channels 1123 inside the diversion block 112, so that one water inlet is divided into three water outlets. Figure 7 As shown, one of the flow diversion outlets 1122 is correspondingly connected to the flow diversion inlet 1121. The opening of the channel 1123 located on the outer side of the diversion block 112 is blocked by a screw plug 161.

[0055] Please refer back to Figure 2 The diversion inlet 1121 and the diversion outlet 1122 are respectively screwed with adapters 162 (NPT to JIC 37° adapter). The adapter 162 at the diversion inlet 1121 is screwed with a high-pressure hose 31, and the adapters 162 of the three diversion outlets 1122 are screwed with connecting pipes 32.

[0056] It should be noted that, in the implementation of the present invention, a relatively long external high-pressure hose 31 and three relatively short high-pressure hose-like connecting pipes 32 are used.

[0057] Among them, the above-mentioned external high-pressure hose 31 can be up to several tens of meters in length and can be provided by the external environment (not included in the device). The high-pressure hose 31 is connected to the diversion inlet 1121 on the diversion block 112, and is mainly used as a pipeline for conveying high-pressure water flow. At the same time, the high-pressure hose 31 itself is a high-strength flexible pipeline, which can be used as a lifting rope to lift and pull the device body 1 to slide on the cable 200. The other three shorter pipes 32 are respectively connected to the three diversion outlets 1122 on the diversion block 112 to guide the high-pressure water flow to the cleaning nozzle 2 below. In this embodiment, the pipe 32 can extend downward from the upper annular body 11 to the lower annular body 13, and the pipe 32 can be tied to the support column 15 by a cable tie 33, so as to maintain a vertical and stable working state.

[0058] Please refer to Fig. 9 Combined with Figure 3 and Figure 4 The lower annular body 13 includes a lower quick-release block 131 and a nozzle fixing block 132 both of which are arc-shaped.

[0059] like Fig. 9 As shown, the outer dimensions of the lower quick release block 131 are similar to those of the upper quick release block 111, and the two are opposite to each other. The arc length of the lower quick release block 131 is close to a quarter of a circle arc, and is smaller than the arc length of the nozzle fixing block 132. The lower quick release block 131 and the nozzle fixing block 132 can be spliced ​​and enclosed to form a complete annular structure. Removing the lower quick release block 131 forms a gap, which allows the cable 200 to enter the interior of the annular structure to achieve quick release.

[0060] like Figure 3 As shown, the nozzle fixing block 132 is provided with three fixing holes 1321 extending vertically along its thickness direction, which are equivalent to three inlets and three outlets. The upper opening (inlet) of the fixing hole 1321 facing the upper annular body 11 is screwed with an adapter 162 for connecting the lower end of the pipe 32, and the lower opening (outlet) of the fixing hole 1321 is screwed with a cleaning nozzle 2. The cleaning nozzle 2 is arranged at an angle so that the water outlet of the cleaning nozzle 2 can be inwardly aligned with the central cable 200 to achieve effective high-pressure cleaning.

[0061] The upper annular body 11 and the lower annular body 13 are provided with a plurality of connecting holes 181. The upper and lower ends of the support column 15 are respectively inserted into the connecting holes 181 to connect the two annular bodies into one. Specifically, the support column 15 has threaded holes at both ends, and the connecting holes 181 on the upper quick-release block 111 and the lower quick-release block 131 are countersunk holes, and the two are connected by hexagon socket bolts 182. The countersunk holes can avoid the protrusion of the screws and ensure the flatness of the installation plane. In the same way, the diverter block 112 and the nozzle fixing block 132 are connected by three support columns 15 and fixed by hexagon socket bolts 182.

[0062] Furthermore, if Figure 2 As shown, a mesh-like anti-slip pattern 151 is provided on the surface of the support column 15 disposed between the upper quick-release block 111 and the lower quick-release block 131 through knurling processing to facilitate holding and disassembly.

[0063] Please refer to Figure 3 and Figure 4 The upper quick-release block 111 is provided with recessed slots 171 at the left and right ends along its circumference, and the upper quick-release block 111 is provided with pin holes 172 at the positions corresponding to the slots 171. The left and right ends of the diverter block 112 are provided with horizontal protrusions 173, and the protrusions 173 are provided with openings corresponding to the pin holes 172. The protrusions 173 can be inserted into the slots 171 to complete the splicing of the upper quick-release block 111 and the diverter block 112.

[0064] The lower quick-release block 131 and the nozzle fixing block 132 are connected in the same manner as described above.

[0065] When working, first remove the upper quick-release block 111 and the lower quick-release block 131, insert the cable 200 into the center holes of the diverter block 112 and the nozzle fixing block 132, then respectively insert the upper quick-release block 111 and the lower quick-release block 131 into the diverter block 112 and the nozzle fixing block 132 through the card slot 171, and then insert the perforated pin 174 at the pin hole 172, and fix the perforated pin 174 with the cotter pin 175.

[0066] In this embodiment, an eye plate 19 is welded on the diverter block 112 and connected to a lifting device via a shackle, so that personnel can easily lift and move the device.

[0067] In this embodiment, the marine cable cleaning device further includes an underwater propeller 4 .

[0068] The underwater propeller 4 is connected to the device body 1 to push the device body 1 to move along the cable 200 underwater. Specifically, the underwater propeller 4 is composed of an integrated motor, a fairing, a propeller and other components. The motor is used to directly drive the propeller to generate a driving force. The stator and the fairing of the motor are designed as one body, and the rotor of the motor and the rotor of the pump-jet propeller are designed as one body; the rotor and stator of the motor need to be insulated and sealed respectively, and the entire motor works in water, which is conducive to the heat dissipation of the motor.

[0069] In this embodiment, two underwater thrusters 4 are provided. The two underwater thrusters 4 are symmetrically arranged on both sides of the upper annular body 11 through a bracket to push the entire device to move along the cable 200.

[0070] The functions of the underwater propeller 4 are: first, if the cable 200 is bent, the device may be stuck, resulting in poor lowering, and the propeller can be turned on; second, when the device is lowered to a certain depth, the buoyancy will increase. At this time, turning on the underwater propeller 4 can provide underwater assistance, so that the device can be moved to a deeper depth underwater, and the cable 200 can be cleaned more comprehensively.

[0071] Please refer back to Figure 1 The marine cable cleaning device also includes a winch 5 and a high-pressure plunger pump 6.

[0072] The winch 5 and the high-pressure plunger pump 6 are both fixedly installed on the offshore structure 300 and are above the water surface.

[0073] The high-pressure hose 31 and the cable of the underwater thruster 4 are wound together on the winch 5, and the controller 41 of the underwater thruster 4 is correspondingly arranged on the outer wall of the winch 5. One end of the high-pressure hose 31 bypasses the winch 5 to connect to the high-pressure plunger pump 6, and the other end is connected to the diversion inlet 1121 on the device body to transport and spray the high-pressure water flow to the cable 200.

[0074] The high-pressure hose 31 and the cable of the underwater propeller 4 are used together as a traction rope, which is released and stored on the winch 5 to lift and lower the device body 1. The high-pressure hose 31 and the cable of the underwater propeller 4 are made of zero buoyancy material to better adapt to the underwater environment, and the device can be raised and lowered by retracting the hose and the cable.

[0075] During use, the winch 5 can be used to control the device to move up and down along the cable 200. When it moves to the part that needs cleaning, the high-pressure plunger pump 6 is started, and the cleaning nozzle 2 at the lower end of the device will spray out a high-speed water flow, using the water flow impact and cavitation effect to clean the cable 200.

[0076] Please refer to further Fig.10 The interior of the cleaning nozzle 2 is hollow, and the upper and lower ends are connected to form a stepped hole 21. The cross-sectional dimensions of the stepped hole 21 are gradually reduced from bottom to top (in the direction away from the adapter 162), thereby generating a cavitation effect. The specific principle is as follows:

[0077] The stepped hole 21 includes a head 211, a transition portion 212 and a tail 213 which are connected in sequence. The head 211 is columnar, has the longest length and the largest diameter, and the lower end of the head 211 is used to connect the adapter 162. The transition portion 212 is inverted cone shape, and its diameter decreases as it goes up. The tail 213 is columnar, has a shorter length, and its diameter is consistent with the minimum diameter of the transition portion 212. The upper end opening of the tail 213 is used to spray high-pressure water.

[0078] The diameters of the tail portion 213 and the head portion 211 are relatively large, which is equivalent to a sudden change in the cross-sectional size of the stepped hole 21 .

[0079] Please refer to Fig.11 When high-pressure water flows through the stepped hole 21 at high speed, a vacuum is generated at the narrow tail portion 213, specifically at the region 23 adjacent to the tail portion 213 and the transition portion 212, due to the sudden change in the cross section (the vacuum region 23 is Fig.11 The bubbles explode in the downstream non-vacuum area, instantly generating a huge local impact force and achieving the cleaning effect.

[0080] When cleaning the cable 200, first remove the upper quick release block 111 and the lower quick release block 131 from the device as a whole (remove the split pin 175 and the pin with hole 174), clamp the device on the cable 200, install the upper and lower quick release components, and then install the pin with hole 174 and the split pin 175. Connect the high-pressure hose 31 to the device. The other end of the high-pressure hose 31 is wound around the winch 5 and then connected to the high-pressure plunger pump 6. In addition, the cable of the underwater propeller 4 is also wound around the winch 5.

[0081] The device is lowered along the cable 200 by gravity using a high-pressure hose 31 and a cable. When lowered to a position on the water surface where there are many marine organisms, the high-pressure plunger pump 6 is started to provide high-pressure water, which is divided into three paths through the diverter block 112 and then connected to the nozzle fixing block 132 through three pipes 32. Finally, the high-pressure water is ejected through the cleaning nozzle 2 on the nozzle fixing block 132, and the high-pressure water is sprayed toward the central cable 200 to remove the attached marine organisms, thereby achieving a cleaning effect.

[0082] Continue to lower the device. If there are many marine organisms on the cable 200 and the device is stuck and cannot be lowered, the winch 5 can be used to repeatedly lift and lower the device, and high-pressure water can be used to repeatedly clean it. In this way, the cable 200 can be cleaned while being lowered, so that the entire cable 200 can be cleaned. If the cable 200 is bent and the device cannot be lowered smoothly, the underwater propeller 4 can be turned on to provide assistance. By adjusting the flow rate of the high-pressure plunger pump 6 and the flow rate of the cleaning nozzle 2, different attached marine organisms can be removed. In addition, an underwater camera can also be fixed on the device to view the cleaning results of the cable 200.

[0083] In summary, the invention provides a device for cleaning underwater rope locks of offshore structures using high-pressure water. The device is operated on the water surface without diving.

[0084] This device is mainly used for cleaning the anchor ropes and net tension ropes of offshore structures 300, such as cables 200 that are located underwater for a long time. The cavitation effect of high-pressure water is utilized, which is more efficient than traditional brushing and has a good cleaning effect. It overcomes the disadvantage that traditional cleaning requires divers to enter the water to use high-pressure water guns for cleaning, and has low cost, high efficiency and good safety. It can achieve cleaning without disassembling the cable 200 and without affecting its normal operation. By installing the underwater propeller 4, the device can be smoothly raised and lowered when the cable 200 is loose and bent.

[0085] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A marine cable cleaning device, characterized in that: include: The device body is annular and has a through hole; the device body is sleeved on the outer circumference of the cable to be cleaned through the through hole and can move along the cable; A cleaning nozzle is arranged on the device body; the water inlet of the cleaning nozzle is used to connect the high-pressure hose, and the water outlet of the cleaning nozzle faces the through hole to spray high-pressure water flow toward the cable; The marine cable cleaning device further comprises a high-pressure hose and a high-pressure plunger pump, one end of the high-pressure hose is connected to the cleaning nozzle, and the other end is used to connect to the high-pressure plunger pump; the interior of the cleaning nozzle is hollow and forms a stepped hole, and the cross-sectional size of the stepped hole is gradually reduced in the direction away from the high-pressure hose; The device body comprises an upper annular body and a lower annular body which are spaced opposite to each other, and a support column connected to the two annular bodies; both the upper annular body and the lower annular body can be sleeved on the outer circumference of the cable, and a plurality of cleaning nozzles are arranged on the circumference of the lower annular body; in the moving direction of the device body, the upper annular body is located at the rear end, the lower annular body is located at the front end, the high-pressure hose is connected to the rear side of the upper annular body, the cleaning nozzle is arranged at the front end of the lower annular body, and during the moving process of the device body, the high-pressure hose is located behind the upper annular body; The upper annular body comprises an upper quick-release block and a diverter block, both of which are arc-shaped; the arc length of the upper quick-release block is smaller than the arc length of the diverter block, and the upper quick-release block and the diverter block can be spliced ​​and enclosed to form a complete annular structure; a gap is formed by removing the upper quick-release block, and the gap allows the cable to enter the interior of the annular structure; The diverter block has a lower surface facing the lower annular body and an upper surface opposite to the lower surface; the upper surface is provided with at least one diverter inlet, and the lower surface is provided with a plurality of diverter outlets spaced along the circumference of the diverter block, the diverter inlet and the diverter outlet are interconnected inside the diverter block to form a high-pressure water channel, the diverter inlet is used to disperse and spray out the high-pressure water flow; the diverter inlet is connected to a high-pressure hose, and the diverter outlet is connected to the cleaning nozzle through an adapter and a pipe; The marine cable cleaning device further comprises an underwater propeller; the underwater propeller is connected to the device body and is used to push the device body to move along the cable underwater; The lower annular body includes a lower quick-release block and a nozzle fixing block, both of which are arc-shaped; the arc length of the lower quick-release block is smaller than the arc length of the nozzle fixing block, and the lower quick-release block and the nozzle fixing block can be spliced ​​and enclosed to form a complete annular structure; removing the lower quick-release block forms a gap, and the gap allows the cable to enter the interior of the annular structure; the upper quick-release block and the lower quick-release block are opposite to each other up and down.

2. The marine cable cleaning device according to claim 1, characterized in that: The underwater thrusters are provided with two and are symmetrically arranged on the device body.

3. The marine cable cleaning device according to claim 1, characterized in that: The marine cable cleaning device also includes a winch; the winch is fixedly arranged above the water surface, and the high-pressure hose is wound around the winch to lift and lower the device body.

4. The marine cable cleaning device according to claim 1, characterized in that: The nozzle fixing block is provided with a plurality of fixing holes extending vertically along its thickness direction. The fixing holes are opened toward the upper end of the upper annular body for connecting with a high-pressure hose, and the lower end of the fixing holes is opened for connecting with the cleaning nozzle.

5. The marine cable cleaning device according to claim 4, characterized in that: The cleaning nozzle is arranged obliquely so that the water outlet of the cleaning nozzle faces inwards to align with the cable.

6. The marine cable cleaning device according to claim 1, characterized in that: The upper annular body and the lower annular body are provided with a plurality of connection holes opposite to each other; the upper and lower ends of the support column are respectively inserted into the connection holes, and the surface of the support column is provided with anti-slip patterns.

7. The marine cable cleaning device according to claim 1, characterized in that: The high-pressure hose may extend downward from the upper annular body to the lower annular body, and the high-pressure hose may be tied to the support column by a cable tie.

8. The marine cable cleaning device according to claim 1, characterized in that: An eye plate for hoisting is arranged on the device body.

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