A protection and management device for a suspended submarine cable

Abstract

The present application relates to the technical field of submarine cable, in particular to a protection and management device for spanning submarine cable. The device comprises an arc plate, first pins, first rollers, movable plates, a horizontal moving assembly and a lifting assembly. A plurality of first pins are symmetrically arranged on the inner side of the arc plate, and the first pins and the arc plate form a first accommodating cavity with an open bottom. Two first rollers are rotatably installed on the two ends of the arc plate. The left and right sides of the cable are symmetrically provided with movable plates. The movable plates are connected with the horizontal moving assembly, and the horizontal moving assembly drives the movable plates to move horizontally to change the opening degree of the open bottom of the first accommodating cavity. The movable plates are connected with the lifting assembly, and the lifting assembly drives the movable plates to move up and down to make the cable abut against the first rollers. The outer surface of the arc plate is provided with bionic water grass. The device is used to solve the problem that the cable is easily damaged by anchor hooks and the suspension is aggravated by sea current after the cable is suspended, which affects the service life of the cable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submarine cables, in particular to a protection and management device for a suspended submarine cable. BACKGROUND

[0002] With the rapid development of new energy industries dominated by offshore wind power, submarine cables have been widely used in marine platform power supply, cross-sea energy transmission and cross-regional power transmission fields, and are widely recognized by the engineering industry as the most cost-effective solution. However, the safe operation of submarine cables faces many challenges. After the submarine cable is suspended due to improper construction and fixation, if the suspended cable is not treated over time, the seawater will continuously erode the suspended cable, causing the length and height of the suspended cable to gradually increase, eventually forming an ultra-large suspended section, affecting the service life of the cable.

[0003] Therefore, the present application provides a protection and management device for a suspended submarine cable to manage and protect the suspended cable. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the present application aims to provide a protection and management device for a suspended submarine cable to solve the problem that the suspended cable is easily damaged by anchor hooks and the suspension is aggravated by sea current erosion, affecting the service life of the cable.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides a protection and management device for a suspended submarine cable, comprising an arched plate, a first pin, a first roller, a movable plate, a horizontal movement assembly and a lifting assembly.

[0006] A plurality of first pins symmetrically distributed on the left and right and axially spaced are fixedly connected to the inner side of the arched plate, a plurality of first pins and the arched plate form a first accommodating cavity with an open bottom end for accommodating a cable, two first rollers are distributed at the two axial ends of the arched plate, and the two first rollers are rotatably installed on the inner side of the top end of the arched plate. The left and right sides of the cable are symmetrically provided with movable plates, the movable plates are connected with the horizontal movement assembly, the horizontal movement assembly drives the movable plates to move horizontally to change the opening degree of the open bottom end of the first accommodating cavity, the movable plates are connected with the lifting assembly, and the lifting assembly drives the movable plates to move up and down to make the cable abut against the first roller. The outer surface layer of the arched plate is provided with a bionic water grass.

[0007] Optionally, the horizontal movement assembly comprises a push plate, a push rod and a first limiting assembly.

[0008] The push plate is in abutment with the movable plate, the push plate is liftable, the top end of the push plate is always in contact with the inner side of the arched plate, one end of the push rod is fixedly connected with the push plate, and the other end of the push rod penetrates through the arched plate and can be unidirectionally limited by the first limiting assembly.

[0009] Optionally, the first limiting assembly comprises a ratchet, a first plug, a first elastic member and a protection seat, the protection seat is hollow inside and fixedly connected with the arched plate outside, the ratchets are fixedly connected with the push rod at intervals, the first plug is slidingly installed in the protection seat, the first elastic member is located in the protection seat, one end of the first elastic member is connected with the protection seat, and the other end of the first elastic member is connected with the first plug, and the elastic force of the first elastic member is used to insert the first plug into the gap between two adjacent ratchets.

[0010] Optionally, the lifting assembly comprises a clamping plate, a screw rod, a support plate and a second limiting assembly.

[0011] The support plate is fixedly connected with the two sides of the arched plate, the clamping plate is slidingly connected with the first pins, the clamping plate is provided with a transverse through area, the bottom end of the movable plate is horizontally arranged and is provided with a plurality of movable grooves for the first pins to pass through at intervals, the movable plate is connected with the horizontal moving assembly after penetrating through the transverse through area, the top end of the screw rod is rotatably installed on the support plate, the screw rod is threadedly connected with the clamping plate, and the second limiting assembly limits the rotation of the screw rod.

[0012] Optionally, the second limiting assembly comprises an F-shaped limiting groove formed in the support plate and a second plug, the top of the screw rod is circumferentially provided with a plurality of plug holes, the second plug is L-shaped, the second plug is located in the F-shaped limiting groove, and the second plug is limited by the F-shaped limiting groove and has a first limiting position and a second limiting position.

[0013] When the second plug is in the first limiting position, the second plug is separated from the plug hole, and the screw rod is rotatable.

[0014] When the second plug is in the second limiting position, the second plug is located in the plug hole, and the screw rod is not rotatable.

[0015] Optionally, the top ends of the movable plates on the left and right sides jointly form a V-shaped structure.

[0016] Optionally, the outer surface layer of the arched plate is a reinforced concrete structure, and the inner surface layer is a steel structure.

[0017] A second roller is rotatably installed at the end of the movable plate in abutment with the horizontal moving assembly.

[0018] Optionally, the cover plate and the sliding seat are further included, the arched plate is provided with a closable opening, the cover plate and the sliding seat are matched with the arched plate, the sliding seat is fixedly connected with the arched plate, and the cover plate is slidingly connected with the sliding seat.

[0019] Optionally, the third limiting assembly comprises a movable column and a second elastic member, a through hole for inserting the movable column is formed in the sliding seat, the movable column is inserted into the through hole, and the movable column is movably connected with the cover plate through the second elastic member.

[0020] Optionally, the second pin and the reinforcing plate are further included, a plurality of the reinforcing plates are obliquely arranged, the number of the reinforcing plates corresponds to that of the first pins, one end of the reinforcing plate is fixedly connected with the first pin, and the other end is fixedly connected with the inner side of the arched plate.

[0021] As described above, the present application has the following beneficial effects:

[0022] 1. The present application can enhance the stability and safety of the cable, and the structure formed by the arched plate and the first pin can stably support and protect the submarine cable, prevent displacement or damage of the submarine cable due to factors such as water flow scouring and submarine geological changes, or prevent the cable from being damaged by the impact of the anchor and the hooking of the anchor during anchoring, thereby improving the reliability and safety of the cable operation.

[0023] 2. The present application has flexibility and strong adaptability: the introduction of the horizontal moving assembly and the lifting assembly enables the movable plate to move horizontally and lift according to the needs, thereby flexibly adjusting the opening degree of the first accommodating cavity bottom end opening and the contact state between the cable and the first roller. This design not only facilitates the installation, maintenance and replacement of the cable, but also adapts to different diameters and types of cables, thereby improving the versatility and adaptability of the device.

[0024] 3. The present application adopts an integrated structure and only needs to be precisely arranged once, the length of the reinforced concrete structure of the outer layer of the arched plate can be prefabricated in advance, which can adapt to different lengths of suspended submarine cable suspension areas, thereby improving the construction efficiency and reducing the cost. The device has a simple structure and is convenient to operate, and can significantly improve the construction efficiency of the submarine cable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The overall structure of the present application is shown.

[0026] Figure 2The whole structure of the invention is shown in the diagram. (Remove the cable)

[0027] Figure 3 The structure of the movable plate 6 of the invention is shown in the diagram.

[0028] Figure 4 The structure of the movable plate 6 and the horizontal moving assembly of the invention is shown in the diagram.

[0029] Figure 5 The structure of the horizontal moving assembly of the invention is shown in the diagram.

[0030] Figure 6 The structure of the arch plate 2 and the first pin 3 of the invention is shown in the diagram.

[0031] Figure 7 The structure of the cover plate 16 of the invention is shown in the diagram.

[0032] Figure 8 The whole structure of the invention in one direction is shown in the diagram.

[0033] Figure 9 The structure of the invention Figure 8 is shown in the diagram.

[0034] Element number explanation

[0035] Among them: cable 1, arch plate 2, first pin 3, first roller 4, second roller 5, movable plate 6, push plate 7, push rod 8, ratchet 9, first plug 10, protection seat 11, clamp plate 12, screw 13, plug hole 1301, support plate 14, F type limiting groove 1401, opening 15, cover plate 16, sliding seat 17, movable column 18, second pin 19, reinforcing plate 20, second plug 21. Specific implementation

[0036] The following specific examples illustrate the implementation of the invention, and those skilled in the art can easily understand other advantages and effects of the invention from the disclosure of the specification.

[0037] Please refer to Figures 1 to 9. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0038] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0039] See also Figures 1 to 9 The present invention provides a protection and management device for suspended submarine cables, comprising an arch plate 2, a first pin 3, a first roller 4, a movable plate 6, a transverse movement assembly and a lifting assembly;

[0040] A plurality of first pins 3 that are symmetrical on the left and right and distributed at axial intervals are fixedly connected to the inner side of the arch plate 2. The plurality of first pins 3 and the arch plate 2 are surrounded to form a first accommodating cavity with an open bottom end. The first accommodating cavity is used to accommodate the cable 1. Two first rollers 4 are distributed at both axial ends of the arch plate 2. The two first rollers 4 are rotatably installed on the inner side of the top end of the arch plate 2. A movable plate 6 is symmetrically provided on the left and right sides of the cable 1. The movable plate 6 is connected to the transverse movement component. The transverse movement component drives the movable plate 6 to move laterally to change the opening degree of the bottom end of the first accommodating cavity. The movable plate 6 is connected to the lifting component. The lifting component drives the movable plate 6 to move up and down so that the cable 1 abuts against the first roller 4. The outer layer of the arch plate 2 is provided with bionic water plants. In this embodiment, the bottom end of the first pin 3 is pointed, which can be better inserted when fixed on the seabed. In this embodiment, the outer layer of the arch plate 2 is provided with bionic water plants, specifically as shown in FIG. Figure 1Bionic water grass is arranged on the left and right sides of the arched plate 2, is made of composite nylon, is fixed to the outer surface layer of the arched plate 2, and is installed at a position where the cable is suspended and spanned. The bionic water grass plays a flexible viscous damping role, reduces the flow velocity of the sea current, and makes the silt in the water flow deposit on the bionic water grass to form a seabed shoal, thereby playing a role in soil fixation on the surrounding soil. After the device completes the covering and pressing on the suspended and spanned cable, the probability of the cable being suspended and spanned again can be further reduced in the subsequent use environment. In the embodiment, the first roller 4 is designed. After the cable 1 is disengaged from the first roller 4 through the horizontal moving assembly and the lifting assembly, the cable 1 can be conveniently pulled out, the damaged cable 1 can be replaced, the replaced cable 1 can be re-entered into the first accommodating cavity, and then the horizontal moving assembly and the lifting assembly are adjusted to fix the cable 1. In the embodiment, the two sides of the first accommodating cavity are the second accommodating cavities, and the second accommodating cavities are used for accommodating the horizontal moving assembly and the lifting assembly. The seabed is relatively hard, and the cable 1 cannot be buried in the seabed soil. If a trench is dug, time and effort are consumed. According to the application, the first prong 3 can be directly inserted into the hard ground, which is very convenient. According to the application, the stability and safety of the cable 1 can be improved. The structure formed by the arched plate 2 and the first prong 3 can stably support and protect the submarine cable 1, prevent the submarine cable 1 from being displaced or damaged due to factors such as water flow scouring and seabed geological changes, prevent the submarine cable 1 from being damaged due to the impact of the anchor on the cable when the anchor is thrown and the anchor is hooked, and improve the reliability and safety of the operation of the cable 1. In the embodiment, the upper end of the first prong 3 can also pass through the outer surface of the arched plate 2 to form a knocking pile. Through the design of the knocking pile, the application can be better inserted into the seabed.

[0041] In the embodiment, the horizontal moving assembly includes a push plate 7, a push rod 8, and a first limiting assembly.

[0042] The push plate 7 is in abutment with the movable plate 6, the push plate 7 is liftable, the top end of the push plate 7 is always in contact with the inner side of the arched plate 2, one end of the push rod 8 is fixedly connected with the push plate 7, and the other end of the push rod 8 passes through the arched plate 2 and can be unidirectionally limited by the first limiting assembly. In the embodiment, the push plate 7 is provided with a second limiting assembly. Figure 4The push plate 7 can be lifted, and one implementation manner can be that the push plate 7 comprises a first push plate and a second push plate, the first push plate is slidingly connected to the second push plate, and a spring is arranged between the first push plate and the second push plate, the elastic force of the spring drives the first push plate to always contact the inner side of the arched plate 2, and in order to make the movable plate 6 more smoothly lifted, a 45° inclined chamfer is arranged at the connection position of the first push plate and the second push plate. Another implementation manner of the push plate 7 that can be lifted is that the push plate 7 comprises a third push plate and a fourth push plate, the fourth push plate is provided with a sliding cavity, the third push plate is sealingly slidingly connected to the sliding cavity, the axial hollow of the push rod 8 is communicated with the sliding cavity, the hollow section of the push rod 8 is provided with a switch valve, and the switch valve is located on the outer side of the arched plate 2. When the push plate 7 needs to be lifted, the switch valve is opened, liquid is injected into the hollow section of the push rod 8, the liquid drives the third push plate to contact the inner side of the arched plate 2, and then the switch valve is closed. The advantage of this design is that compared with the spring, the push plate 7 can not only push the movable plate 6 to move horizontally, but also can support the inner side of the arched plate 2, and the supporting effect is better. Similarly, in order to make the movable plate 6 more smoothly lifted, a 45° inclined chamfer is arranged at the connection position of the third push plate and the fourth push plate. Regardless of which implementation manner is adopted, a rubber layer is designed at the top end of the first push plate or the third push plate, which can make the push plate 7 move better and at the same time maintain a certain supporting effect on the inner side of the arched plate 2.

[0043] In the embodiment, the lifting assembly comprises a push plate 7, a push rod 8 and a push rod 9. Figure 5 The first limiting component comprises a ratchet 9, a first plug-in part 10, a first elastic part and a protection seat 11. The protection seat 11 is hollow inside and is fixedly connected with the arched plate 2 outside. The ratchet 9 is fixedly connected with the push rod 8 at intervals. The first plug-in part 10 is slidingly installed in the protection seat 11. The first elastic part is located in the protection seat 11. One end of the first elastic part is connected with the protection seat 11, and the other end is connected with the first plug-in part 10. The elastic force of the first elastic part is used to make the first plug-in part 10 be plugged into the gap between two adjacent ratchets 9. In the embodiment, the shape of the ratchet 9 can be a straight-angled trapezoid with an inclined section. In this way, when the push rod 8 pushes towards the inner side of the arched plate 2, the first plug-in part 10 does not need to be lifted by external force. When the push rod 8 is pulled out towards the outer side of the arched plate 2, the first plug-in part 10 needs to be lifted by external force, and then the push rod 8 can be pulled out towards the outer side of the arched plate 2. Therefore, it is very convenient to clamp the cable 1.

[0044] In the embodiment, the lifting assembly comprises a push plate 7, a push rod 8 and a push rod 9. Figure 2 The lifting assembly comprises a clamping plate 12, a screw rod 13, a supporting plate 14 and a second limiting component.

[0045] The support plate 14 is fixed to both sides of the arch plate 2, the splint 12 is slidably connected to the first pin 3, the splint 12 is provided with a horizontal through-area, the bottom end of the movable plate 6 is horizontally arranged and is spaced apart with a plurality of movable grooves for the corresponding first pins 3 to pass through, the movable plate 6 is connected to the horizontal movement component after passing through the horizontal through-area, the top end of the screw 13 is rotatably installed on the support plate 14, the screw 13 is threadedly connected to the splint 12, and the second limiting component limits the rotation of the screw 13.

[0046] In this embodiment, Figure 8 and Figure 9 The second limiting assembly includes an F-shaped limiting groove 1401 and a second plug-in connector 21 provided on the support plate 14. A plurality of plug-in holes 1301 are provided circumferentially on the top of the screw rod 13. The second plug-in connector 21 is L-shaped. The second plug-in connector 21 is in the F-shaped limiting groove 1401. The second plug-in connector 21 is limited by the F-shaped limiting groove 1401 and has a first limiting position and a second limiting position.

[0047] When the second plug-in connector 21 is in the first limit position, the second plug-in connector 21 is disengaged from the plug-in hole 1301 and the screw rod 13 can rotate;

[0048] When the second connector 21 is in the second limit position, the second connector 21 is located in the plug-in hole 1301, and the screw 13 cannot rotate. In this embodiment, the rotation of the screw 13 drives the splint 12 to rise and fall, and the lifting and lowering of the splint 12 drives the movable plate 6 to rise and fall. After the rotation and adjustment of the screw 13 are completed, the second connector 21 is in the second limit position, the second connector 21 is located in the plug-in hole 1301, and the screw 13 cannot rotate. This can prevent the surging seawater from causing impact on the screw 13, thereby loosening the screw 13. In this embodiment, the F-type limit groove 1401 can be filled with a magnetic layer, the outer layer of the second connector 21 is a rubber waterproof layer, and the inner layer is wrapped with iron parts. The magnetic layer in the F-type limit groove 1401 absorbs the iron parts of the second connector 21. This design increases the stability of the second connector 21 after it is plugged into the plug-in hole 1301.

[0049] In this embodiment, Figure 2 and Figure 3 , the top ends of the movable plates 6 on the left and right sides together form a V-shape. In this embodiment, the top ends of the movable plates 6 on the left and right sides together form a V-shape, which can better clamp the cable 1.

[0050] In this embodiment, the outer surface of the arched plate 2 is a reinforced concrete structure, while the inner surface is a steel structure. A second roller 5 is rotatably mounted on the end of the movable plate 6 that abuts the traverse assembly. In this embodiment, the reinforced concrete outer surface of the arched plate 2 reduces steel usage and costs, and the concrete structure can be prefabricated in advance, improving construction efficiency. In this embodiment, the second roller 5 is designed to facilitate the raising and lowering of the movable plate 6. The second roller 5 can be a rubber wheel.

[0051] In the embodiment, the arch-shaped plate 2 is provided with a closable opening 15, and the cover plate 16 and the sliding seat 17 are matched with the arch-shaped plate 2. Figure 6 And Figure 7 The cover plate 16 and the sliding seat 17 are fixedly connected with the arch-shaped plate 2, the cover plate 16 is slidingly connected with the sliding seat 17, and the cover plate 16 is limited by a third limiting assembly after closing the opening 15. In the embodiment, when the operation is performed on the seabed, the sliding mode is adopted, so that personnel can more conveniently open or close the opening 15. Through the design of the opening 15, subsequent inspection and maintenance of the cable 1 are facilitated.

[0052] In the embodiment, the third limiting assembly includes a movable column 18 and a second elastic member, the sliding seat 17 is provided with a through hole for inserting the movable column 18, the movable column 18 is insertable into the through hole, and the movable column 18 is movably connected with the cover plate 16 through the second elastic member. The elastic force of the second elastic member is used to insert the movable column 18 into the through hole. In the embodiment, when the opening 15 needs to be closed, the cover plate 16 is slid to insert the movable column 18 into the through hole of the sliding seat 17. If the opening 15 needs to be opened, the movable column 18 is pressed by external force to be separated from the through hole of the sliding seat 17, and then the cover plate 16 is slid.

[0053] In the embodiment, the second pin 19 and a reinforcing plate 20 are further included, the reinforcing plate 20 is obliquely arranged, the number of the reinforcing plate 20 corresponds to the number of the first pin 3, one end of the reinforcing plate 20 is fixedly connected with the first pin 3, the other end is fixedly connected with the inner side of the arch-shaped plate 2, the bottom end of the arch-shaped plate 2 extends horizontally to both sides to form a mounting plate, and the mounting plate is fixedly connected with the second pin 19. In the embodiment, the reinforcing plate 20 is designed to strengthen the performance of the overall structure. The bottom end of the second pin 19 is a sharp angle, which can be better inserted into the seabed ground during fixing. The second pin 19 is designed to strengthen the connection between the application and the seabed, so that the whole is more stable and reliable.

[0054] Working principle of the application:

[0055] After the cable 1 is suspended, the application is made according to the length of the suspension, or if the length of the suspension is too long, multiple applications can be made to cover the suspended cable 1 in sections. The operator first carries the application to the corresponding suspended section of the cable 1, aligns the first accommodating cavity with the suspended section of the cable 1, and then opens the opening 15 to facilitate sinking. The application gradually sinks to the seabed under the action of its own weight, is inserted into the seabed through the first prong 3 and the second prong 19 to form a fixed connection, and can also be further reinforced by knocking the knocking pile above the first prong 3. Then, the transverse assembly and the lifting assembly are moved according to the thickness specifications of the cable 1. Specifically, the push rod 8 is first pushed, the push rod 8 drives the push plate 7 to move, the push plate 7 drives the movable plate 6, the movable plate 6 is clamped to the cable 1, the screw rod 13 is rotated, the screw rod 13 drives the clamping plate 12 to move up and down, the clamping plate 12 drives the movable plate 6 to move up and down, the movable plate 6 drives the cable 1 to abut against the first roller 4, thereby completing the fixation of the cable 1, i.e. realizing the covering of the suspended section of the cable 1, and then the opening 15 is closed.

[0056] The above embodiments are only illustrative of the principles and effects of the application, and are not intended to limit the application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical idea of the application should be covered by the claims of the application.

Claims

1. A protection and management device for suspended submarine cables, characterized in that: It comprises an arched plate (2), a first pin (3), a first roller (4), a movable plate (6), a transverse movement component and a lifting component; A plurality of first pins (3) that are symmetrical on the left and right and distributed at intervals in the axial direction are fixedly connected to the inner side of the arch plate (2); the plurality of first pins (3) and the arch plate (2) are surrounded to form a first accommodating cavity with an open bottom end; the first accommodating cavity is used to accommodate the cable (1); two first rollers (4) are distributed at both axial ends of the arch plate (2); the two first rollers (4) are rotatably installed on the inner side of the top end of the arch plate (2); movable plates (6) are symmetrically provided on the left and right sides of the cable (1); the movable plates (6) are connected to the transverse movement component; the transverse movement component drives the movable plates (6) to move laterally to change the opening degree of the bottom end opening of the first accommodating cavity; the movable plates (6) are connected to the lifting component; the lifting component drives the movable plates (6) to move up and down so that the cable (1) abuts against the first rollers (4); and the outer surface of the arch plate (2) is provided with bionic water plants.

2. The protection and management device for suspended submarine cables according to claim 1, characterized in that: The transverse movement assembly includes a push plate (7), a push rod (8) and a first limit assembly; The push plate (7) is in contact with the movable plate (6), and the push plate (7) can be raised and lowered. The top end of the push plate (7) is always in contact with the inner side of the arch plate (2). One end of the push rod (8) is fixedly connected to the push plate (7), and the other end of the push rod (8) passes through the arch plate (2) and can be unidirectionally limited by the first limiting component.

3. The protection and management device for suspended submarine cables according to claim 2, characterized in that: The first limiting component includes a ratchet platform (9), a first connector (10), a first elastic member and a protective seat (11); the protective seat (11) is hollow inside and fixedly connected to the arch plate (2) on the outside; the ratchet platform (9) is fixedly connected to the push rod (8) at intervals; the first connector (10) is slidably installed on the protective seat (11); the first elastic member is located in the protective seat (11); one end of the first elastic member is connected to the protective seat (11) and the other end is connected to the first connector (10); the elastic force of the first elastic member is used to enable the first connector (10) to be inserted into the gap between two adjacent ratchet platforms (9).

4. The protection and management device for suspended submarine cables according to claim 1, characterized in that: The lifting assembly comprises a clamping plate (12), a screw rod (13), a support plate (14) and a second limiting assembly; The support plate (14) is fixed to both sides of the arch plate (2), the clamping plate (12) is slidably connected to the first pin (3), the clamping plate (12) is provided with a transverse through-area, the bottom end of the movable plate (6) is horizontally arranged and is provided with a plurality of movable grooves for the corresponding first pins (3) to pass through, the movable plate (6) is connected to the transverse movement component after passing through the transverse through-area, the top end of the screw rod (13) is rotatably mounted on the support plate (14), the screw rod (13) is threadedly connected to the clamping plate (12), and the second limiting component limits the rotation of the screw rod (13).

5. The protection and management device for suspended submarine cables according to claim 4, characterized in that: The second limiting component comprises an F-shaped limiting groove (1401) and a second plug-in connector (21) provided on the support plate (14); a plurality of plug-in holes (1301) are provided on the top of the screw rod (13) in a circumferential direction; the second plug-in connector (21) is L-shaped; the second plug-in connector (21) is within the F-shaped limiting groove (1401); the second plug-in connector (21) is limited by the F-shaped limiting groove (1401) and has a first limiting position and a second limiting position; When the second connector (21) is in the first limit position, the second connector (21) is disengaged from the connector hole (1301), and the screw rod (13) can rotate; When the second connector (21) is in the second limit position, the second connector (21) is located in the connector hole (1301), and the screw rod (13) cannot rotate.

6. The protection and management device for suspended submarine cables according to claim 1, characterized in that: The top ends of the movable plates (6) on the left and right sides together form a V shape.

7. The protection and management device for suspended submarine cables according to claim 1, characterized in that: The outer surface of the arched plate (2) is a reinforced concrete structure, and the inner surface is a steel structure; A second roller (5) is rotatably mounted on one end of the movable plate (6) that abuts against the transverse movement assembly.

8. The protection and management device for suspended submarine cables according to claim 1, characterized in that: The invention also includes a cover plate (16) and a sliding seat (17), wherein the arch plate (2) is provided with a closable opening (15), the cover plate (16) and the sliding seat (17) match the arch plate (2), the sliding seat (17) is fixedly connected to the arch plate (2), the cover plate (16) is slidably connected to the sliding seat (17), and after the cover plate (16) closes the opening (15), it is restricted by a third limiting component.

9. The protection and management device for suspended submarine cables according to claim 8, characterized in that: The third limiting component includes a movable column (18) and a second elastic member. The sliding seat (17) is provided with a through hole for plugging the movable column (18). The movable column (18) can be plugged into the through hole. The movable column (18) and the cover plate (16) are movably connected through the second elastic member. The elastic force of the second elastic member is used to plug the movable column (18) into the through hole.

10. The protection and management device for suspended submarine cables according to claim 1, characterized in that: It also includes a reinforcing plate (20) and a second pin (19), wherein a plurality of the reinforcing plates (20) are arranged obliquely, and the number of the reinforcing plates (20) corresponds to the number of the first pin (3), one end of the reinforcing plate (20) is fixedly connected to the first pin (3), and the other end is fixedly connected to the inner side of the arch plate (2), and the bottom end of the arch plate (2) extends horizontally to both sides to form a mounting plate, and the mounting plate is fixedly connected to the second pin (19).

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