Protection and treatment device for suspended span submarine cable

Abstract

The invention relates to the technical field of submarine cables, in particular to a protection and treatment device for a suspended span submarine cable. Comprising an arch-shaped plate, first inserting feet, first rolling wheels, a movable plate, a transverse moving assembly and a lifting assembly. A plurality of first pins which are in bilateral symmetry and are axially distributed at intervals are fixedly connected to the inner side of the arched plate, a first containing cavity with an opening in the bottom end is defined by the first pins and the arched plate, the two first rollers are rotatably installed at the two axial ends of the arched plate, movable plates are symmetrically arranged on the left side and the right side of the cable, and the movable plates are connected with the transverse moving assembly. The transverse moving assembly drives the movable plate to transversely move to change the opening degree of the opening in the bottom end of the first containing cavity, the movable plate is connected with the lifting assembly, the lifting assembly drives the movable plate to ascend and descend so that the cable can abut against the first rolling wheel, and bionic aquatic plants are arranged on the outer surface layer of the arch-shaped plate. The problem that the service life of a cable is affected due to the fact that the cable is easily hooked and damaged by an anchorage device and scoured by ocean current to aggravate suspended span after being suspended is solved.

Description

Technical Field

[0001] The invention relates to the technical field of submarine cables, in particular to a protection and management device for suspended submarine cables. Background Art

[0002] With the rapid development of new energy industries, mainly offshore wind power, submarine cables have been widely used in the fields of offshore platform power supply, cross-sea energy transmission and cross-regional power transmission, and are widely regarded by the engineering community 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, as time goes by, if the suspended cable is not treated, the seawater will continue to wash the suspended cable, causing the suspended length and height to gradually increase, eventually forming an oversized suspended section, affecting the service life of the cable.

[0003] To this end, the inventor proposes a protection and management device for suspended submarine cables to manage and protect the suspended cables. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a protection and management device for suspended submarine cables, which is used to solve the problem that after the cables are suspended in the air, they are easily damaged by anchor hooks and aggravated by current erosion, which affects the service life of the cables.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a protection and management device for suspended submarine cables, comprising an arch plate, a first pin, a first roller, a movable plate, a traverse assembly and a lifting assembly; A plurality of first pins which are symmetrical on the left and right and are distributed axially at intervals are fixedly connected to the inner side of the arch plate; the plurality of first pins and the arch plate surround to form a first accommodating cavity with an open bottom end; the first accommodating cavity is used to accommodate a cable; two first rollers are distributed on the axial ends of the arch plate; the two first rollers are rotatably installed on the inner side of the top end of the arch plate; movable plates are symmetrically provided on the left and right sides of the cable; the movable plates are connected to the transverse movement component; the transverse movement component drives the movable plate to move laterally to change the opening degree of the bottom end of the first accommodating cavity; the movable plate is connected to the lifting component; the lifting component drives the movable plate to move up and down so that the cable abuts against the first rollers; the outer layer of the arch plate is provided with bionic water plants.

[0006] Optionally, the transverse movement assembly includes a push plate, a push rod and a first limit assembly; The push plate is in contact with the movable plate, the push plate can be raised and lowered, 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 to the push plate, and the other end of the push rod passes through the arched plate and can be unidirectionally limited by the first limiting assembly.

[0007] Optionally, the first limiting assembly includes a ratchet platform, a first connector, a first elastic member and a protective seat, the protective seat is hollow inside and fixedly connected to the arch plate on the outside, the ratchet platform is fixedly connected to the push rod at intervals, the first connector is slidably installed on the protective seat, the first elastic member is located in the protective seat, one end of the first elastic member is connected to the protective seat, and the other end is connected to the first connector, and the elastic force of the first elastic member is used to make the first connector inserted into the gap between two adjacent ratchet platforms.

[0008] Optionally, the lifting assembly includes a clamping plate, a screw rod, a support plate and a second limiting assembly; The support plate is fixedly connected to both sides of the arch plate, the clamping plate is slidably connected to the first pin, the clamping plate is provided with a transverse through-area, the bottom end of the movable plate is horizontally arranged and is spaced apart with a plurality of movable grooves for the corresponding first pins to pass through, the movable plate is connected to the transverse moving component after passing through the transverse through-area, the top end of the screw is rotatably installed on the support plate, the screw is threadedly connected to the clamping plate, and the second limiting component limits the rotation of the screw.

[0009] Optionally, the second limiting assembly includes an F-shaped limiting groove and a second plug-in component provided on the support plate, a plurality of plug-in holes are provided on the top circumference of the screw rod, the second plug-in component is L-shaped, the second plug-in component is in the F-shaped limiting groove, the second plug-in component is limited by the F-shaped limiting groove and has a first limiting position and a second limiting position; When the second plug-in connector is in the first limit position, the second plug-in connector is disengaged from the plug-in hole, and the screw rod can rotate; When the second plug-in connector is at the second limit position, the second plug-in connector is located in the plug-in hole, and the screw rod cannot rotate.

[0010] Optionally, the top ends of the movable plates on the left and right sides together form a V-shape.

[0011] Optionally, the outer surface of the arched plate is a reinforced concrete structure, and the inner surface is a steel structure; A second roller is rotatably mounted on one end of the movable plate that abuts against the transverse movement assembly.

[0012] Optionally, it also includes a cover plate and a sliding seat, the arch plate is provided with a closable opening, the cover plate and the sliding seat match the arch plate, the sliding seat is fixedly connected to the arch plate, the cover plate is slidably connected to the sliding seat, and after the cover plate closes the opening, it is limited by a third limiting component.

[0013] Optionally, the third limiting assembly includes a movable column and a second elastic member, the sliding seat is provided with a through hole for plugging the movable column, the movable column can be plugged into the through hole, the movable column and the cover plate are movably connected via the second elastic member, and the elastic force of the second elastic member is used to enable the movable column to be plugged into the through hole.

[0014] Optionally, it also includes a reinforcement plate and a second pin, a plurality of the reinforcement plates are arranged obliquely, the number of the reinforcement plates corresponds to the number of the first pins, one end of the reinforcement plate is fixedly connected to the first pin, and the other end is fixedly connected to the inner side of the arch plate, the bottom end of the arch plate extends horizontally to both sides to form a mounting plate, and the mounting plate is fixedly connected to the second pin.

[0015] As described above, the present invention has the following beneficial effects: 1. The present application can enhance the stability and safety of the cable. The structure formed by the arch plate and the first pin can stably support and protect the submarine cable to prevent it from being displaced or damaged due to factors such as water erosion and seabed geological changes, or to prevent the impact of the anchor on the cable when anchoring and the damage of the cable caused by the hooking of the anchor, thereby improving the reliability and safety of the cable operation.

[0016] 2. This application has strong flexibility and adaptability: the introduction of the transverse movement component and the lifting component enables the movable plate to move horizontally and lift as needed, thereby flexibly adjusting the opening degree of the bottom opening of the first accommodating cavity and the contact state between the cable and the first roller. This design is not only convenient for the installation, maintenance and replacement of cables, but also can adapt to cables of different diameters and types, improving the versatility and adaptability of the device.

[0017] 3. This application adopts an integrated structure that only requires one precise arrangement. The length of the reinforced concrete structure of the outer surface of the arched plate can be prefabricated in advance, which can adapt to different suspended lengths of submarine cable suspension areas, improve construction efficiency and reduce costs. The device has a simple structure and is easy to operate, which can significantly improve the construction efficiency of submarine cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 The figure shows the overall structure of the present invention. (without the cable) Figure 3 It is a schematic structural diagram of the movable plate 6 of the present invention.

[0020] Figure 4 It is a schematic structural diagram showing the connection between the movable plate 6 and the transverse shifting assembly of the present invention.

[0021] Figure 5 Shown is a schematic structural diagram of the transverse shifting assembly in the present invention.

[0022] Figure 6 It is a schematic structural diagram of the arch plate 2 and the first plug pin 3 in the present invention when they are connected.

[0023] Figure 7 It is a schematic diagram of the structure of the cover plate 16 in the present invention.

[0024] Figure 8 It is a schematic diagram of the overall structure of one aspect of the present invention.

[0025] Fig. 9 Shown as the present invention Figure 8 Enlarged view of point A in the middle.

[0026] Component number description Wherein: cable 1, arch plate 2, first pin 3, first roller 4, second roller 5, movable plate 6, push plate 7, push rod 8, ratchet platform 9, first connector 10, protection seat 11, clamping plate 12, screw 13, plug hole 1301, support plate 14, F-type limit groove 1401, opening 15, cover plate 16, sliding seat 17, movable column 18, second pin 19, reinforcement plate 20, second connector 21. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] See also 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, so they have no substantial 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 effects and purposes 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.

[0029] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0030] 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 traverse assembly and a lifting assembly; A plurality of first pins 3 which are symmetrical on the left and right and are distributed axially at intervals are fixedly connected to the inner side of the arch plate 2. The plurality of first pins 3 and the arch plate 2 surround to form a first accommodating cavity with an opening at the bottom. The first accommodating cavity is used to accommodate the cable 1. Two first rollers 4 are distributed at the 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. The left and right sides of the cable 1 are symmetrically provided with movable plates 6. 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 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. 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, so that it 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, as shown in FIG. Figure 1, bionic water grass is arranged on the left and right sides of the arch plate 2. The bionic water grass is made of composite nylon and fixed on the outer surface of the arch plate 2. The current at the position where the cable is suspended is relatively strong. The bionic water grass plays a flexible viscous damping role, reduces the velocity of the current, and makes the silt in the water flow deposit on the bionic water grass to form a seabed sandbar, which plays a role in consolidating the surrounding soil. After the device completes the covering pressure on the suspended cable, the probability of the cable being suspended again in the subsequent use environment can be further reduced. In this embodiment, the first roller 4 is designed. After the transverse movement component and the lifting component release the contact between the cable 1 and the first roller 4, the cable 1 can be easily pulled out through the first roller 4, and the damaged cable 1 can be replaced. The replaced cable 1 can re-enter the first accommodating chamber, and then the transverse movement component and the lifting component are adjusted to fix the cable 1. In this embodiment, the two sides of the first accommodating chamber are second accommodating chambers, and the second accommodating chamber is used to accommodate the transverse movement component and the lifting component. Some of the seabed's surface geology is hard, and the cable 1 cannot be buried in the seabed soil. If the trench is dug, it will be time-consuming and labor-intensive. In this application, the first pin 3 can be directly inserted into the harder geology, which is very convenient. Through this application, the stability and safety of the cable 1 can be enhanced. The structure formed by the arch plate 2 and the first pin 3 can stably support and protect the submarine cable 1 to prevent it from being displaced or damaged due to factors such as water scouring and changes in seabed geology, or from being damaged by the impact of the anchor on the cable when anchoring and the hooking of the anchor, thereby improving the reliability and safety of the cable 1. In this embodiment, the upper end of the first pin 3 can also pass through the outer surface of the arch plate 2 to form a knocking pile. By designing the knocking pile, this application can be better inserted into the seabed ground.

[0031] In this embodiment, 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 limit assembly. Figure 4The push plate 7 can be raised and lowered, and one implementation method may be: the push plate 7 includes a first push plate and a second push plate, the first push plate is slidably connected to the second push plate, and a spring is provided between the first push plate and the second push plate, and the elastic force of the spring drives the first push plate to always contact the inner side of the arch plate 2. In order to make the movable plate 6 smoother when lifting and lowering, a 45° chamfer is provided at the connection between the first push plate and the second push plate. Another implementation method of the push plate 7 being liftable is that the push plate 7 includes a third push plate and a fourth push plate, the fourth push plate is provided with a sliding cavity, the third push plate is sealed and slidably connected in the sliding cavity, the axial hollow of the push rod 8 is connected with the sliding cavity, the hollow section of the push rod 8 is provided with a switch valve, and the switch valve is located outside the arch plate 2. When the push plate 7 needs to be lifted, the switch valve is opened, and 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 arch 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 laterally, but also play a certain supporting role on the inner side of the arch plate 2, and the supporting effect is better. Similarly, in order to make the movable plate 6 smoother when lifting, the connection between the third push plate and the fourth push plate is inverted with a 45° chamfer. Regardless of which implementation method is adopted, a rubber layer is designed at the top of the first push plate or the third push plate. The design of the rubber layer can make the push plate 7 move better, while maintaining a certain supporting effect on the inner side of the arch plate 2.

[0032] In this embodiment, Figure 5 The first limit assembly includes a spur 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 outside. The spur 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 make the first connector 10 plug into the gap between two adjacent spur platforms 9. In this embodiment, the shape of the spur platform 9 can be a right-angle trapezoid with an inclined cross section. In this design, when the push rod 8 is pushed toward the inner side of the arch plate 2, no external force is required to lift the first connector 10; when the push rod 8 is pulled out toward the outer side of the arch plate 2, the first connector 10 needs to be lifted by external force before the push rod 8 can be pulled out toward the outer side of the arch plate 2. Therefore, it is very convenient to clamp the cable 1.

[0033] In this embodiment, Figure 2 , the lifting assembly includes a clamping plate 12, a screw rod 13, a support plate 14 and a second limiting assembly; The support plate 14 is fixedly connected 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 moving component after passing through the transverse through-area, the top end of the screw rod 13 is rotatably installed 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.

[0034] In this embodiment, Figure 8 and Fig. 9 The second limiting assembly includes an F-shaped limiting groove 1401 and a second plug-in component 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 component 21 is L-shaped. The second plug-in component 21 is in the F-shaped limiting groove 1401. The second plug-in component 21 is limited by the F-shaped limiting groove 1401 and has a first limiting position and a second limiting position. When the second plug-in connector 21 is at 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; When the second connector 21 is in the second limit position, the second connector 21 is located in the plug hole 1301, and the screw 13 cannot rotate. In this embodiment, the rotation of the screw 13 drives the clamp 12 to rise and fall, and the lifting and lowering of the clamp 12 drives the movable plate 6 to rise and fall. When the rotation and adjustment of the screw 13 is completed, the second connector 21 is in the second limit position, the second connector 21 is located in the plug hole 1301, and the screw 13 cannot rotate. This can prevent the surging sea water 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 adsorbs 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 hole 1301.

[0035] In this embodiment, Figure 2 and Figure 3 , the tops of the movable plates 6 on the left and right sides together form a V-shape. In this embodiment, the tops of the movable plates 6 on the left and right sides together form a V-shape, which can better clamp the cable 1.

[0036] In this embodiment, the outer surface of the arch plate 2 is a reinforced concrete structure, and the inner surface is a steel structure; the second roller 5 is rotatably mounted on one end of the movable plate 6 that abuts against the transverse displacement assembly. In this embodiment, the outer surface of the arch plate 2 is a reinforced concrete structure, which can reduce the use of steel and reduce costs, and the concrete structure can be prefabricated in advance, improving construction efficiency. In this embodiment, the second roller 5 is designed to make it more convenient for the movable plate 6 to be raised and lowered. The second roller 5 can be a rubber wheel.

[0037] In this embodiment, Figure 6 and Figure 7 , and also includes a cover plate 16 and a sliding seat 17. 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. After the cover plate 16 closes the opening 15, it is limited by the third limit assembly. In this embodiment, when operating on the seabed, a sliding method is adopted, which is more convenient for personnel to open or close the opening 15. By designing the opening 15, it is convenient to check and maintain the cable 1 later.

[0038] In this embodiment, the third limit assembly includes a movable column 18 and a second elastic member. A through hole for the movable column 18 to be inserted is provided on the sliding seat 17. The movable column 18 can be inserted into the through hole. The movable column 18 is movably connected to 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 this 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 needs to be pressed with external force to make the movable column 18 disengage from the through hole of the sliding seat 17, and then the cover plate 16 is slid.

[0039] In this embodiment, a reinforcing plate 20 and a second pin 19 are also included. A plurality of reinforcing plates 20 are arranged obliquely. The number of reinforcing plates 20 corresponds to the number of first pins 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. 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. In this embodiment, the performance of the structure is strengthened as a whole by designing the reinforcing plate 20. The bottom end of the second pin 19 is pointed, and when it is fixed on the seabed, it can be better inserted. By designing the second pin 19, the connection between the present application and the seabed can be strengthened, making the whole more stable and reliable.

[0040] Working principle of the present invention: After the cable 1 on the seabed is suspended, the present application is made according to the suspended length, or if the suspended length is too long, multiple present applications can be made to cover the suspended cable 1 in sections. The operator first moves the present 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 for easy sinking. The present application gradually sinks to the seabed under its own weight, and the first pin 3 and the second pin 19 are inserted into the seabed to form a fixed connection, and the knocking pile above the first pin 3 can also be knocked for further reinforcement. Then, the transverse movement component and the lifting component are moved according to the thickness specifications of the cable 1. Specifically, the push rod 8 is pushed first, and the push rod 8 drives the push plate 7 to move, and the push plate 7 drives the movable plate 6. After the movable plate 6 clamps the cable 1, the screw 13 is rotated, and the screw 13 rotates to drive the clamping plate 12 to move up and down, and the clamping plate 12 drives the movable plate 6 to move up and down, and the movable plate 6 drives the cable 1 to contact the first roller 4, thereby completing the fixation of the cable 1, that is, achieving the covering pressure of the suspended section of the cable 1, and then closing the opening 15.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A protection and management device for suspended submarine cables, characterized in that: It comprises an arched plate (2), a first plug pin (3), a first roller (4), a movable plate (6), a transverse movement component and a lifting component; A plurality of first pins (3) which are symmetrical and axially spaced are fixedly connected to the inner side of the arch plate (2); the plurality of first pins (3) and the arch plate (2) surround 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 two axial ends of the arch plate (2); the two first rollers (4) are rotatably mounted on the inner side of the top end of the arch plate (2); movable plates (6) are symmetrically arranged 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 transversely 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. A protection and management device for suspended submarine cables according to claim 1, characterized in that: The transverse movement assembly comprises 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), 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 assembly.

3. A protection and management device for suspended submarine cables according to claim 2, characterized in that: The first limiting component comprises 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) outside; the ratchet platform (9) is fixedly connected to the push rod (8) at intervals; the first connector (10) is slidably mounted 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 is 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 fixedly connected 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 penetration 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 moving component after passing through the transverse penetration 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 is characterized in that: The second limiting assembly comprises an F-shaped limiting groove (1401) provided on the support plate (14) and a second plug-in component (21); a plurality of plug-in holes (1301) are provided in the circumferential direction of the top of the screw rod (13); the second plug-in component (21) is L-shaped; the second plug-in component (21) is in the F-shaped limiting groove (1401); the second plug-in component (21) is limited by the F-shaped limiting groove (1401) and has a first limiting position and a second limiting position; 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) is rotatable; When the second plug-in connector (21) is in the second limit position, the second plug-in connector (21) is located in the plug-in hole (1301), and the screw rod (13) cannot rotate.

6. The protection and management device for suspended submarine cables according to claim 1 is 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 is 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 is characterized in that: The invention also comprises a cover plate (16) and a sliding seat (17); 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); after the cover plate (16) closes the opening (15), it is limited by a third limiting component.

9. A protection and management device for suspended submarine cables according to claim 8, characterized in that: The third limiting assembly comprises 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 via the second elastic member, and the elastic force of the second elastic member is used to enable the movable column (18) to be plugged into the through hole.

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

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