Submarine cable protection device

Abstract

The invention discloses a submarine cable protection device, and relates to the field of cable protection. The objective of the invention is to solve the problem that a sheath layer of a submarine suspension cable is damaged due to biological attachment. The device comprises a support mechanism, a cleaning mechanism and a shifting mechanism, the support mechanism comprises a first clamping ring, and a middle ring frame and an inclined ring frame are sequentially and fixedly connected outside the first clamping ring in a sleeving mode; the cleaning mechanism comprises a second clamping ring, the second clamping ring is connected with an annular plate, the annular plate is connected with a plurality of propeller hub blocks, blades are fixed to the outer sides of the propeller hub blocks, and cleaning brushes abutting against the outer layer of the cable are fixed to the inner sides of the propeller hub blocks; the shifting mechanism comprises a third clamping ring abutting against the outer side face of the second clamping ring, a plurality of installation bases are fixed to the outer side of the third clamping ring, rotating shafts are rotationally installed in the installation bases, and shifting rods are fixed to the rotating shafts. The device utilizes seabed water flow to drive the paddle to drive the cleaning brush to rotate to clean attachments on the surface of the cable, moves along the cable through the linkage mechanism, and is mainly used for automatically removing biological attachments on the surface of the suspended submarine cable, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This application relates to the field of cable protection technology, and in particular to a submarine cable protection device. Background Technology

[0002] After completion, modern offshore platforms connect to the coast via submarine cables for power transmission and network access, providing crucial technological support for marine energy development and digital management. Submarine cables are typically laid using specialized trenching vessels. These vessels create cable trenches by impacting the seabed, and the cables are then buried within these trenches, eventually being smothered by ocean currents. However, this method is inefficient in areas with complex seabed topography (such as the South China Sea continental shelf) and can disturb seabed sediments, damaging the marine ecosystem. Therefore, research has begun exploring the possibility of using suspended cables.

[0003] However, suspended cables still face the problem of biofouling during use. For example, barnacle larvae attaching to and growing on the cable surface can cause the cable sheath to break down more quickly. While using anti-biofouling coatings can significantly extend the cable's lifespan, it also greatly increases the cost. Furthermore, suspended cables are susceptible to impacts from fast-swimming fish, which can cause cracks in the cable sheath, and long-term accumulation can lead to sheath failure. Summary of the Invention

[0004] This application proposes a submarine cable protection device that has the advantage of cleaning the outer layer of the cable, thereby solving the problem of biological adhesion damaging the cable sheath.

[0005] To achieve the above objectives, this application adopts the following technical solution: a submarine cable protection device, comprising: The support mechanism includes a first retaining ring rotatably mounted on the cable, a middle ring frame fixedly sleeved on the outside of the first retaining ring, and an oblique ring frame fixedly sleeved on the outside of the middle ring frame. The cleaning mechanism includes a second retaining ring rotatably mounted on a first retaining ring. One end of the second retaining ring is fixedly connected to an annular plate. A plurality of propeller hub blocks are fixedly connected to one side of the annular plate. Propeller blades are fixedly connected to the outer side of the propeller hub blocks. A cleaning brush is fixedly connected inside the propeller hub blocks. The bristles of the cleaning brush abut against the outer layer of the cable. The actuating mechanism includes a third retaining ring abutting against the outer side of the second retaining ring. Multiple mounting seats are fixedly connected to the outer side of the third retaining ring. A rotating shaft is rotatably mounted in the mounting seat, and an actuating rod is fixedly connected to the rotating shaft.

[0006] This technical solution utilizes the coordinated operation of a support mechanism, a cleaning mechanism, and a toggle mechanism. Water flow drives the rotation of the cleaning mechanism's blades, which in turn moves the cleaning brush to clean the outer layer of the cable, effectively removing attached barnacle larvae, algae, and other organisms. The compact structure and coordinated rotation of each mechanism allow it to adapt to the seabed current environment, protecting the submarine cable and resolving the problem of sheath damage caused by biological attachment, thus ensuring the cable's safety. Specifically, water flow drives the blades to rotate, causing the cleaning brush inside the hub to mechanically scrub the cable surface, directly removing barnacle larvae, algae, and other attached organisms. Simultaneously, the toggle lever, rotating with the third retaining ring, links with the inclined ring frame, propelling the entire support mechanism along the cable, achieving a dual dynamic cleaning mechanism of "rotational cleaning + axial movement," expanding the cleaning coverage area. The first retaining ring of the support mechanism provides rotational support for the cleaning mechanism, and the toggle mechanism rotates synchronously by abutting the second retaining ring with the third retaining ring. The three mechanisms form a purely mechanical linkage system, driven only by tidal currents, requiring no electricity or manual intervention, making it suitable for deep-sea environments. The cleaning brush directly contacts the cable surface to remove deposits through physical contact; the combination of the inclined ring frame and the lever prevents the device from being fixed in a single point for a long time during movement, preventing excessive accumulation of local organisms and reducing the risk of sheath corrosion from the source.

[0007] Preferably, the inner side of the first retaining ring is provided with a plurality of first sliding grooves, and a rubber block is slidably connected in the first sliding groove, with one side of the rubber block abutting against the cable.

[0008] Preferably, a counterweight is fixedly connected to the side of the rubber block away from the cable, and a first spring is elastically connected between the rubber block and the first groove.

[0009] Preferably, the first retaining ring, the middle ring frame, and the inclined ring frame are all fixed by symmetrical components, and the sides of the middle ring frame and the inclined ring frame are provided with centrally symmetrical through grooves.

[0010] Preferably, a connecting ring is movably sleeved inside the inclined ring frame, and a clamping block is fixedly connected to the inner side of the connecting ring, and the clamping block is fixedly connected to the outer side of the blade.

[0011] Preferably, the second retaining ring and the connecting ring are both fixed by symmetrical components, and the plurality of the hub blocks are combined to form a hub sleeved outside the cable.

[0012] Preferably, the third retaining ring is internally threaded with a threaded rod, one end of which is rotatably mounted on one side of the annular plate, and the other end is rotatably mounted on the side of the second retaining ring.

[0013] Preferably, the axis of the rotating shaft is parallel to the axis of the cable, and symmetrical torsion springs are movably sleeved on the rotating shaft. One end of the torsion spring is fixedly connected to the side of the lever, and the other end is fixedly connected to the mounting base.

[0014] Preferably, the actuating lever has a second sliding groove inside, and a sliding column is slidably connected in the second sliding groove. One end of the sliding column is elastically connected to the second sliding groove by a second spring, and the second spring pulls the sliding column closer to the third retaining ring.

[0015] Preferably, the non-hinged end of the actuating rod passes through a slot opened on the inclined ring frame, and the actuating rod rotates after colliding with the inclined ring frame when the cleaning mechanism rotates slowly.

[0016] The beneficial effects of this invention are as follows: 1. In this invention, through the provided support mechanism, cleaning mechanism, and actuating mechanism, during high and low tides, the rapid flow of water causes the cleaning mechanism to rotate rapidly, thereby cleaning the surface of the cable with the cleaning brush and removing barnacle larvae and algae that flow with the water and adhere to the cable. As the cleaning mechanism rotates rapidly, the actuating rod in the actuating mechanism also rotates rapidly. Under the action of centrifugal force, the sliding column slides towards the non-hinged end of the actuating rod, thereby increasing the driving ability of the actuating rod on the inclined ring frame. At this time, as the friction between the rubber block and the cable is offset by the driving of the actuating rod, the first retaining ring rotates with the inclined ring frame. At this time, under the centrifugal action of the counterweight, the rubber block separates from the cable, allowing the support mechanism to move on the cable. Driven by the water flow, the support mechanism and the cleaning mechanism move together along the cable, so that the cleaning brush moves along the cable while rotating, removing the barnacle larvae and algae attached to the cable.

[0017] 2. When the water flow is slow, causing the cleaning mechanism to rotate only slowly, the actuating rod also rotates slowly. The sliding column, pulled by the second spring, approaches the third retaining ring. As the actuating rod rotates with the cleaning mechanism, upon contacting the inclined ring frame, since the first retaining ring has not rotated, the rubber block, pushed by the first spring, abuts against the cable, counteracting the driving force exerted by the actuating rod on the inclined ring frame. That is, the first retaining ring still cannot rotate. As the actuating rod collides with the inclined ring frame, the support mechanism vibrates, causing one side... The device loosens and shakes off seaweed, barnacle larvae, and other attachments to the support structure. During high and low tides, the impact of the rapid water flow will peel off the loosened attachments, preventing excessive attachments from increasing the overall weight of the device and causing the cable to sag, thus affecting the actual service life of the cable. On the other hand, the sound generated by the collision between the lever and the inclined ring frame will also drive away small fish that gather nearby, preventing large fish from hitting the cable when preying on small fish, thus preventing damage to the cable sheath caused by the impact. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the left side view of the present invention; Figure 3 This is a schematic diagram of the support mechanism of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the cleaning mechanism structure of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the cleaning mechanism of the present invention in cooperation with the first retaining ring and the third retaining ring; Figure 8 This is a cross-sectional view of the toggle lever of the present invention.

[0020] The components are: 1. Cable; 2. Support mechanism; 21. First retaining ring; 22. Middle ring frame; 23. Inclined ring frame; 24. First slide groove; 25. Rubber block; 26. First spring; 27. Counterweight block; 3. Cleaning mechanism; 31. Second retaining ring; 32. Annular plate; 33. Hub block; 34. Blade; 35. Connecting ring; 36. Cleaning brush; 4. Actuating mechanism; 41. Third retaining ring; 42. Mounting base; 43. Rotating shaft; 44. Actuating rod; 45. Threaded rod; 46. Torsion spring; 47. Second slide groove; 48. Sliding column; 49. Second spring. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1 to 8 As shown in the figure, a submarine cable protection device in this embodiment mainly includes a support mechanism 2, a cleaning mechanism 3, and a toggle mechanism 4.

[0023] The support mechanism 2 includes a first retaining ring 21 rotatably mounted on the cable 1. The first retaining ring 21 is a convex-shaped cylindrical body with open ends. A middle ring frame 22 is fixedly sleeved on the outside of the first retaining ring 21, and the middle ring frame 22 is sleeved on the outer circumferential surface of the annular cylindrical body with a larger outer diameter of the first retaining ring 21. An inclined ring frame 23 is fixedly sleeved on the outside of the middle ring frame 22. The cleaning mechanism 3 includes a second retaining ring 31 rotatably mounted on the first retaining ring 21, and the second retaining ring 31 is rotatably connected to the cylindrical body with a smaller outer diameter of the first retaining ring 21. An annular plate 32 is fixedly connected to the end of the second retaining ring 31 away from the first retaining ring 21. Multiple propeller hub blocks 33 are fixedly connected between the two annular plates 32, and the multiple propeller hub blocks 33 are combined to form a propeller hub sleeved on the outside of the cable 1. A propeller blade 34 is fixedly connected to the outer circumferential surface of the propeller hub block 33, and a cleaning brush 36 is fixedly connected to the inner circumferential surface of the propeller hub block 33. The surface of the flexible cleaning column of the cleaning brush 36 abuts against the outer layer of the cable 1. The actuating mechanism 4 includes a third retaining ring 41 sleeved on the outer circumferential surface of the second retaining ring 31. Multiple mounting seats 42 are fixedly connected to the outer circumferential surface of the third retaining ring 41. A rotating shaft 43 is rotatably mounted inside the mounting seat 42, and an actuating lever 44 is fixedly connected to the rotating shaft 43.

[0024] The inner side of the first retaining ring 21 is provided with a plurality of first sliding grooves 24. A rubber block 25 is slidably connected in the first sliding groove 24. One side of the rubber block 25 abuts against the cable 1. A counterweight block 27 is fixedly connected to the side of the rubber block 25 away from the cable 1. A first spring 26 is elastically connected between the rubber block 25 and the first sliding groove 24.

[0025] The first retaining ring 21, the middle ring frame 22 and the inclined ring frame 23 are all fixed by symmetrical components, and the sides of the middle ring frame 22 and the inclined ring frame 23 are provided with centrally symmetrical through grooves.

[0026] The inclined ring frame 23 has a connecting ring 35 that is movably sleeved inside. The inner side of the connecting ring 35 is fixedly connected to a clamping block, which is fixedly connected to the outer side of the blade 34. The second retaining ring 31 and the connecting ring 35 are both fixedly composed of symmetrical components. Multiple hub blocks 33 are combined to form a hub that is sleeved outside the cable 1.

[0027] The third retaining ring 41 is internally threaded with a threaded rod 45. One end of the threaded rod 45 is rotatably mounted on one side of the annular plate 32, and the other end is rotatably mounted on the side of the second retaining ring 31.

[0028] The axis of the rotating shaft 43 is parallel to the axis of the cable 1. A symmetrical torsion spring 46 is movably sleeved on the rotating shaft 43. One end of the torsion spring 46 is fixedly connected to the side of the actuating rod 44, and the other end is fixedly connected to the mounting base 42. A second sliding groove 47 is provided inside the actuating rod 44. A sliding column 48 is slidably connected in the second sliding groove 47. A second spring 49 is elastically connected between one end of the sliding column 48 and the second sliding groove 47. The second spring 49 pulls the sliding column 48 to bring it closer to the third retaining ring 41. The non-hinged end of the actuating rod 44 passes through the through groove opened on the inclined ring frame 23. When the cleaning mechanism 3 rotates slowly, the actuating rod 44 collides with the inclined ring frame 23 and then rotates.

[0029] In this invention, through the support mechanism 2, cleaning mechanism 3, and actuating mechanism 4, during high and low tides, the rapid flow of water causes the cleaning mechanism 3 to rotate rapidly, thereby enabling the cleaning brush 36 to clean the surface of the cable 1, removing barnacle larvae and algae that flow with the water and adhere to the cable 1. As the cleaning mechanism 3 rotates rapidly, the actuating rod 44 in the actuating mechanism 4 also rotates rapidly. Under the action of centrifugal force, the sliding column 48 slides towards the non-hinged end of the actuating rod 44, thereby lifting the actuating rod. The driving force of the inclined ring frame 23 is reduced by the driving force of the lever 44. At this time, as the friction between the rubber block 25 and the cable 1 is offset by the driving force of the lever 44, the first retaining ring 21 rotates together with the inclined ring frame 23. At this time, under the action of the counterweight 27, the rubber block 25 separates from the cable 1, so that the support mechanism 2 can move on the cable 1. At this time, driven by the water flow, the support mechanism 2 and the cleaning mechanism 3 move together along the cable 1, so that the cleaning brush 36 moves along the cable 1 while rotating, and removes the barnacle larvae and seaweed attached to the cable 1.

[0030] When the water flow is slow, causing the cleaning mechanism 3 to rotate only slowly, the actuating rod 44 also rotates slowly. The sliding column 48, pulled by the second spring 49, approaches the third retaining ring 41. As the actuating rod 44 rotates with the cleaning mechanism 3, upon contact with the inclined ring frame 23, since the first retaining ring 21 is not rotating, the rubber block 25, pushed by the first spring 26, abuts against the cable 1, counteracting the driving force exerted by the actuating rod 44 on the inclined ring frame 23. Thus, the first retaining ring 21 still cannot rotate. As the actuating rod 44 collides with the inclined ring frame 23, the support... When the support mechanism 2 vibrates, on the one hand, it loosens and shakes off the seaweed, barnacle larvae, and other attachments attached to the support mechanism 2. During high and low tides, the impact of the rapid water flow will peel off the loose attachments, preventing the overall weight of the device from increasing due to excessive attachments, which would cause the device to pull the cable 1 down and affect the actual service life of the cable 1. On the other hand, the sound generated by the collision between the lever 44 and the inclined ring frame 23 will also drive away small fish that gather around, preventing large fish from hitting the cable 1 when preying on small fish, and preventing damage to the cable 1's sheath layer due to the impact.

[0031] Finally, each component in the bracket mechanism 2, cleaning mechanism 3, and actuation mechanism 4 of this device is composed of multiple identical parts, which not only facilitates installation but also makes it easier to replace damaged parts during later maintenance.

[0032] like Figure 4 As shown, when the cleaning mechanism 3 rotates slowly, the actuating rod 44 of the actuating mechanism 4 comes into contact with the inclined ring frame 23 and is about to actuate the inclined ring frame 23. Due to the friction between the rubber block 25 and the surface of the cable 1, the support mechanism 2 cannot rotate. Therefore, the actuation of the actuating rod 44 will form intermittent knocking of the inclined ring frame 23, thereby making a sound to drive away the fish. When the cleaning mechanism 3 is driven by the fast water flow and rotates quickly, as the contact interval between the actuating rod 44 and the inclined ring frame 23 shortens, the inclined ring frame 23 is driven to rotate. At this time, due to the inertia of the counterweight 27, the rubber block 25 no longer contacts the cable 1, so that the inclined ring frame 23 can rotate with the cleaning mechanism 3, avoiding the support mechanism 2 affecting the water flow and causing the rotation speed of the cleaning mechanism 3 to be insufficient, so as not to clean the surface of the cable 1.

[0033] Since submarine cables are usually very long, using a sleeve method to install the support mechanism 2 on the cable 1 is not only time-consuming and labor-intensive, but also not conducive to replacement during later maintenance. Therefore, by using a symmetrical component assembly method, the support mechanism 2 can be disassembled from the cable 1 at any time, which facilitates the installation and replacement of corresponding components. The through slots opened on the middle ring frame 22 and the inclined ring frame 23 not only allow seawater to pass through, increasing the contact area between the blade 34 and the seawater, but also allow the actuating rod 44 of the actuating mechanism 4 to pass through the through slots and strike the support mechanism 2 when rotating, preventing seaweed, barnacles and other attachments from adhering to the support mechanism 2, which would increase the overall weight of the device, pull the cable 1 downward, and cause the cable 1 to deform and be damaged.

[0034] like Figure 5 , Figure 6 and Figure 7 As shown, the connecting ring 35 is used to fix the blade 34, ensuring that the hub block 33 and the blade 34 are more stable when rotating, and preventing the hub block 33 from scratching the sheath layer of the cable 1 due to the misalignment of the rotation axis of the hub block 33 with the axis of the cable 1 during rotation, thus affecting the service life of the cable 1.

[0035] Similar to the first retaining ring 21, the second retaining ring 31 and the connecting ring 35, which are composed of symmetrical parts, are easy to install, inspect and replace. Multiple hub blocks 33 are used to form a hub, and blades 34 are fixed on the outer side of the hub blocks 33 to form a propeller. This not only makes it easy to install, inspect and replace, but also allows the number of hub blocks 33 to be determined according to the parameters of the relevant water area, so that the propeller can be used in different water areas.

[0036] like Figure 6 As shown, the threaded rod 45 passes through the third retaining ring 41, so that the position of the third retaining ring 41 can be controlled when the threaded rod 45 is rotated. Since one end of the actuating rod 44 extends into the through groove on the inclined ring frame 23, the contact gap between the actuating rod 44 and the inclined ring frame 23 can be changed after adjusting the position of the third retaining ring 41, thereby changing the interval of the knocking sound, and thus obtaining the most effective data through testing.

[0037] like Figure 8As shown, because the sliding column 48 slides within the second sliding groove 47, when the blade 34 rotates slowly due to a small water flow impact, the centrifugal force on the sliding column 48 is small, causing the sliding column 48 to move closer to the third retaining ring 41 under the pull of the second spring 49. At this time, after the end of the actuating rod 44 away from the hinge contacts the inclined ring frame 23, the force exerted by the actuating rod 44 on the inclined ring frame 23 is small, so the actuating rod 44 only rotates around the rotating shaft 43 after contacting the inclined ring frame 23 and cannot move the inclined ring frame 23. When the actuating rod 44 enters the next through groove, Under the action of the torsion spring 46, the actuating rod 44 returns to the center. At the same time, due to the friction between the rubber block 25 and the cable 1, the impact of the actuating rod 44 on the inclined ring frame 23 cannot cause the inclined ring frame 23 to rotate. Thus, when the water flow is small and slow, the actuating rod 44 in the actuating mechanism 4 intermittently collides with the inclined ring frame 23 and causes the inclined ring frame 23 to vibrate, thereby shaking off the attachments on the support mechanism 2. At the same time, the sound emitted by the vibration between the two will also drive away small fish in the vicinity, thereby preventing large fish from approaching the cable when preying on small fish and causing damage to the cable.

[0038] As the tide rises and falls, the water flow velocity increases, and the blades 34 are impacted by the faster water flow. This causes the blades 34 to drive the hub block 33 to rotate rapidly. At the same time, driven by the water flow, the blades 34 also move along the direction of the cable 1. At this time, the cleaning brush 36 on the inner side of the hub block 33 will clean the surface of the cable 1, thereby brushing away barnacle larvae and algae that have attached to the cable 1 with the rise and fall of the tide. This prevents barnacle larvae from attaching and growing on the cable 1 and damaging the sheath layer of the cable 1. It also prevents algae from growing on the cable 1 and attracting small fish to gather and eat the algae on the sheath layer, thereby preventing large fish from approaching the cable 1 and causing cable damage or other accidents.

[0039] In this invention, when the water flow is small, the function is to strike the inclined ring frame 23 rather than to clean it. At this time, the entire structure is similar to being fixed to the cable and not moving with the cable. The blade 34 is affected by the water flow and drives the hub block 33 to rotate. At this time, the rotation of the blade 34 does not clean the cable surface, but causes the actuating rod 44 of the actuating mechanism 4 to strike the inclined ring frame 23 to make a sound to drive away the fish and prevent them from gathering. When the water flow is large, the blade 34 rotates at high speed, causing the actuating mechanism 4 to rotate at high speed. The contact gap between the actuating rod 44 and the inclined ring frame 23 is reduced, thereby driving the support mechanism 2 to rotate.

[0040] In this invention, the cleaning mechanism 3 cleans the barnacle larvae and algae attached to the cable surface every day with the rise and fall of the tide. Since barnacle larvae and algae need at least 3 days to grow, they are cleaned by the cleaning mechanism 3 before they have a chance to grow, thus preventing the barnacle larvae from growing into barnacles and firmly attaching to the cable surface.

[0041] Working principle: When the water flow is relatively gentle, due to insufficient driving force, the cleaning mechanism 3 only drives the actuating mechanism 4 to rotate. At this time, the actuating rod 44 will collide with the inclined ring frame 23 as the actuating mechanism 4 rotates, causing the inclined ring frame 23 to vibrate. This will drive away small fish by making a sound. At the same time, the vibration of the inclined ring frame 23 will also loosen and shake off the attachments on the support mechanism 2. These attachments will be washed away by the faster water flow during high and low tides, preventing the accumulation of attachments from increasing the weight of the device and pulling the cable 1 downward.

[0042] As the water flow speed increases due to the rising and falling tides, the water flow drives the blade 34 to rotate at a faster speed than when the water flow is gentle. At the same time, the cleaning mechanism 3 also drives the actuating mechanism 4 to rotate rapidly. Under the action of centrifugal force, the sliding column 48 moves away from the hinge end of the actuating rod 44. When the actuating rod 44 contacts the inclined ring frame 23, the actuating force on the inclined ring frame 23 increases, thereby offsetting the friction between the rubber block 25 and the cable 1. This allows the cleaning mechanism 3 and the actuating mechanism 4 to drive the support mechanism 2 to rotate together. As the support mechanism 2 rotates, the counterweight 27 slides into the first sliding groove 24 under the action of centrifugal force, so that the rubber block 25 no longer contacts the cable 1. Due to the increased water flow speed, the blade 34 is not only driven to rotate by the water flow, but also moves along the cable 1 with the water flow, thereby cleaning the outer sheath of the cable 1 with the cleaning brush 36.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A submarine cable protection device, characterized in that, include: The support mechanism (2) includes a first retaining ring (21) rotatably mounted on the cable (1), a middle ring frame (22) is fixedly sleeved on the outside of the first retaining ring (21), and an oblique ring frame (23) is fixedly sleeved on the outside of the middle ring frame (22). The cleaning mechanism (3) includes a second retaining ring (31) rotatably mounted on a first retaining ring (21). One end of the second retaining ring (31) is fixedly connected to an annular plate (32). A plurality of propeller hub blocks (33) are fixedly connected to one side of the annular plate (32). Propeller blades (34) are fixedly connected to the outer side of the propeller hub blocks (33). A cleaning brush (36) is fixedly connected inside the propeller hub blocks (33). The bristles of the cleaning brush (36) abut against the outer layer of the cable (1). The actuating mechanism (4) includes a third retaining ring (41) abutting against the outer side of the second retaining ring (31). Multiple mounting seats (42) are fixedly connected to the outer side of the third retaining ring (41). A rotating shaft (43) is rotatably installed in the mounting seat (42). An actuating rod (44) is fixedly connected to the rotating shaft (43).

2. The submarine cable protection device according to claim 1, characterized in that, The inner side of the first retaining ring (21) is provided with a plurality of first sliding grooves (24), and a rubber block (25) is slidably connected in the first sliding groove (24). One side of the rubber block (25) abuts against the cable (1).

3. The submarine cable protection device according to claim 2, characterized in that, A counterweight (27) is fixedly connected to the side of the rubber block (25) away from the cable (1), and a first spring (26) is elastically connected between the rubber block (25) and the first groove (24).

4. A submarine cable protection device according to claim 3, characterized in that, The first retaining ring (21), the middle ring frame (22) and the inclined ring frame (23) are all fixed by symmetrical components. The sides of the middle ring frame (22) and the inclined ring frame (23) are provided with centrally symmetrical through grooves.

5. A submarine cable protection device according to claim 1, characterized in that, The inclined ring frame (23) is movably sleeved with a connecting ring (35), and a clamping block is fixedly connected to the inner side of the connecting ring (35), and the clamping block is fixedly connected to the outer side of the blade (34).

6. A submarine cable protection device according to claim 5, characterized in that, The second retaining ring (31) and the connecting ring (35) are both fixed by symmetrical components, and multiple hub blocks (33) are combined to form a hub that is set outside the cable (1).

7. A submarine cable protection device according to claim 6, characterized in that, The third retaining ring (41) is internally threaded with a threaded rod (45). One end of the threaded rod (45) is rotatably mounted on one side of the annular plate (32), and the other end is rotatably mounted on the side of the second retaining ring (31).

8. A submarine cable protection device according to claim 3, characterized in that, The axis of the rotating shaft (43) is parallel to the axis of the cable (1). A symmetrical torsion spring (46) is movably sleeved on the rotating shaft (43). One end of the torsion spring (46) is fixedly connected to the side of the lever (44), and the other end is fixedly connected to the mounting base (42).

9. A submarine cable protection device according to claim 8, characterized in that, The inside of the lever (44) is provided with a second groove (47), and a sliding column (48) is slidably connected in the second groove (47). One end of the sliding column (48) is elastically connected to the second groove (47) with a second spring (49). The second spring (49) pulls the sliding column (48) to bring it closer to the third retaining ring (41).

10. A submarine cable protection device according to claim 9, characterized in that, The non-hinged end of the actuating rod (44) passes through the through slot opened on the inclined ring frame (23). When the cleaning mechanism (3) rotates slowly, the actuating rod (44) collides with the inclined ring frame (23) and then rotates.

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