Underwater dynamic submarine cable system suitable for shallow sea areas

Abstract

The present invention relates to the technical field of dynamic submarine cables, and provides an underwater dynamic submarine cable system suitable for shallow sea areas. The underwater dynamic submarine cable system comprises a floating platform, a dynamic submarine cable and a fixing assembly. The dynamic submarine cable comprises an underwater configuration section and a pre-buried submarine cable section, wherein the underwater configuration section is configured to be in a waveform state, and the pre-buried submarine cable section is fixedly arranged on the seabed. The fixing assembly comprises a fixing base, a sleeve and an anchor system, wherein the fixing base is fixedly arranged on the seabed; the sleeve is sleeved on the submarine cable between the underwater configuration section and the pre-buried submarine cable section; and one end of the anchor system is fixedly connected to the fixing base, and the other end of the anchor system is slidably connected to the sleeve, so as to provide an additional linear allowance for the underwater configuration section and maintain the state stability of the underwater configuration section. By means of providing the fixing assembly on the cable between the underwater configuration section and the pre-buried submarine cable section, and by means of slidably connecting the anchor system to the sleeve, the underwater dynamic submarine cable system provides an additional length allowance when the dynamic submarine cable deviates to a distal position, and serves a limiting function in the process of the dynamic submarine cable approaching a proximal position, thereby maintaining the stability of the underwater configuration section.

Description

underwater dynamic submarine cable system suitable for shallow waters

[0001] This application claims priority to Chinese Patent Application No. 202411217318.5, filed on August 30, 2024, entitled "Underwater Dynamic Submarine Cable System Applicable to Shallow Sea Areas", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the technical field of dynamic submarine cables, and more specifically, to an underwater dynamic submarine cable system suitable for shallow sea areas. Background Technology

[0003] my country has a long coastline and abundant nearshore water resources. To utilize these nearshore waters, floating power generation systems are employed. These systems typically consist of a floating platform for power generation and underwater dynamic cables used for transmitting electrical energy and various signals.

[0004] Nearshore waters are characterized by shallow water depth and strong waves and currents. When surface navigation is required or other reasons prevent the installation of surface rigging, multi-wave dynamic submarine cable rigging is no longer suitable, necessitating the installation of underwater dynamic submarine cables. However, when the water depth is as low as 15 meters or even less, constructing underwater multi-wave rigging becomes difficult. At distant locations, dynamic submarine cables are prone to tautness and tension, while at closer locations, they are susceptible to twisting, bottoming out, or surfacing, significantly threatening the lifespan of the dynamic submarine cable system. Summary of the Invention

[0005] This invention provides an underwater dynamic submarine cable system suitable for shallow sea areas, which solves the problem of poor configuration stability of existing dynamic submarine cables in shallow water areas and achieves a stable configuration of dynamic submarine cables in shallow water areas.

[0006] This invention provides an underwater dynamic submarine cable system suitable for shallow sea areas, comprising: a floating platform, a dynamic submarine cable, a bending reinforcement, a buoyancy device, a counterweight device, and a fixing assembly; the dynamic submarine cable includes an underwater configuration section and a pre-buried submarine cable section, the underwater configuration section being constructed in a wave-like state, and the pre-buried submarine cable section being fixedly installed on the seabed; the fixing assembly includes a fixing base, a sleeve, and an anchor system, the fixing base being fixedly installed on the seabed, the sleeve being sleeved on the submarine cable between the underwater configuration section and the pre-buried submarine cable section, one end of the anchor system being fixedly connected to the fixing base, and the other end of the anchor system being slidably connected to the sleeve, providing additional margin for the underwater configuration section and maintaining the stability of the underwater configuration section.

[0007] According to the present invention, a dynamic submarine cable system suitable for shallow sea areas is provided, wherein the sleeve includes a tube body and a sliding structure, the tube body is sleeved on the submarine cable, the tube body is provided with a sliding groove, the sliding structure is disposed in the sliding groove so that the sliding structure slides along the sliding groove, and the anchor is connected to the sliding structure.

[0008] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, the sliding structure includes a slider, the slider being slidably engaged with the sliding groove, a lifting device being provided on the slider, the lifting device being rotatably connected to the slider, and the lifting device being used to connect to the anchorage.

[0009] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, the sliding groove is spirally arranged around the tube body.

[0010] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, the sliding structure includes a gear and a rack. The rack is embedded in one side wall of the sliding groove, the gear is slidably disposed in the sliding groove, and the gear is rotatable about its own central axis. The gear meshes with the rack, and a lifting device is provided on the gear. The lifting device is rotatably connected to the gear.

[0011] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, a power generation module is provided on the floating platform, and the power generation module is electrically connected to the dynamic submarine cable.

[0012] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, the submarine cable body of the underwater configuration section is provided with a buoyancy device and a counterweight device, and the buoyancy device and the counterweight device are alternately arranged to form a waveform state through the buoyancy device and the counterweight device.

[0013] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, the fixed base includes a counterweight plate, the counterweight plate is disposed on the seabed, and the counterweight plate is provided with a connecting structure, the connecting structure being rotatably connected to the counterweight plate.

[0014] According to the dynamic submarine cable system for shallow sea areas provided by the present invention, a bending reinforcement is provided at the connection between the dynamic submarine cable and the floating platform, and the bending reinforcement is used to prevent the dynamic submarine cable from bending excessively.

[0015] According to the dynamic submarine cable system for shallow waters provided by the present invention, the sleeve extends from the underwater configuration section to the pre-buried submarine cable section to completely cover the section of the dynamic submarine cable in contact with the seabed, and the sleeve is used to prevent the dynamic submarine cable from directly contacting the seabed.

[0016] This invention provides an underwater dynamic cable system suitable for shallow waters. By installing fixing components on the cable between the underwater configuration section and the pre-buried cable section, and through a sliding connection between the anchor and the sleeve, the dynamic cable is provided with additional camber allowance when shifting to a distant position, and excess camber length is recovered during the process of bringing the dynamic cable closer to its destination, thus maintaining the stability of the underwater configuration section. Furthermore, the sleeve provides abrasion protection for the dynamic cable at the seabed contact point.

[0017] In addition to the technical problems solved by this application, the technical features constituting the technical solution, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the underwater dynamic submarine cable system for shallow sea areas provided by this application, other technical features contained in the technical solution, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the underwater dynamic submarine cable system provided by the present invention in its in-situ state.

[0020] Figure 2 is a schematic diagram of the end face structure of the sleeve in the underwater dynamic submarine cable system provided by the present invention;

[0021] Figure 3 is one of the main view structural schematic diagrams of the sleeve in the underwater dynamic submarine cable system provided by the present invention;

[0022] Figure 4 is a second schematic diagram of the main view structure of the sleeve in the underwater dynamic submarine cable system provided by the present invention.

[0023] Figure 5 is a top view of the fixed base in the underwater dynamic submarine cable system provided by the present invention.

[0024] Figure 6 is a schematic diagram of the underwater dynamic submarine cable system provided by the present invention in a near-position state;

[0025] Figure 7 is a schematic diagram of the underwater dynamic submarine cable system provided by the present invention in a remote position.

[0026] Explanation of reference numerals in the attached drawings: 1-Dynamic submarine cable; 2-Counterweight device; 3-Buoyancy device; 4-Casing; 41-Pipe body; 42-Metal skeleton; 43-Sliding groove; 44-Sliding structure; 441-Slider; 442-Gear; 45-Lifting device; 46-Rack; 47-Counterweight plate; 48-Connecting structure; 5-Floating platform; 6-Anchoring part; 7-Bending reinforcement; 8-Pre-buried submarine cable section; 9-Underwater configuration section. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in 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, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0031] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] In shallow waters, the shallow depth makes it difficult to construct the underwater wave crest profile of dynamic submarine cables. Furthermore, the shallowness of the water area limits the slack of the dynamic submarine cable waveform, making it prone to straggling and tension when the dynamic submarine cable is far from the water, and twisting, touching the bottom, or floating to the surface when it is close to the water, which greatly threatens the service life of the dynamic submarine cable system.

[0034] To address the problems in related technologies, as shown in Figures 1-4, this embodiment provides an underwater dynamic submarine cable system suitable for shallow sea areas, including a floating platform 5, a dynamic submarine cable 1, and a fixing component. The dynamic submarine cable 1 includes an underwater configuration section 9 and a pre-buried submarine cable section 8. The underwater configuration section 9 is constructed in a wave-like state, and the pre-buried submarine cable section 8 is fixedly installed on the seabed. The fixing component includes a fixing base, a sleeve 4, and an anchor system. The fixing base is fixedly installed on the seabed, the sleeve 4 is sleeved on the submarine cable between the underwater configuration section 9 and the pre-buried submarine cable section 8, one end of the anchor system is fixedly connected to the fixing base, and the other end of the anchor system is slidably connected to the sleeve 4, providing additional margin for the underwater configuration section 9 and maintaining the stability of the underwater configuration section 9. The dynamic submarine cable 1 is located below the sea surface and is used to transmit electrical energy and various signals. Because the dynamic submarine cable is constantly subjected to fatigue due to waves, ocean currents, and platform offset, in this embodiment, the underwater configuration segment 9 is designed with a waveform state to ensure the cable's linear stability and service life. This waveform state provides a greater displacement margin, allowing the dynamic cable to maintain its configuration at a distance, reducing the vertical span used and preventing collisions with the seabed. Furthermore, the sliding connection between the anchor and the sleeve 4 provides additional margin at a distance, maintaining the stability of the dynamic submarine cable 1 configuration, and allows for the recovery of excess length at close range, further maintaining the stability of the dynamic submarine cable 1 configuration.

[0035] Understandably, the limited depth of shallow waters makes the configuration of submarine cables challenging. This means ensuring that, under strong waves and currents, the cable will not be taut or stretched at a distance, nor will it interfere with the seabed at close range. In this embodiment, a sliding connection between the anchor and the sleeve 4 provides extra slack for the submarine cable in the underwater configuration section 9 at a distance, preventing tautness. At close range, the anchor can retract the excess length to prevent interference between the underwater configuration section 9 and the seabed.

[0036] As shown in Figures 6 and 7, the far position refers to the far position where the dynamic submarine cable 1 extends under the influence of seawater waves and currents, while the near position refers to the near position where the dynamic submarine cable 1 contracts under the influence of seawater waves and currents. That is, the dynamic submarine cable 1 will move between the far position and the near position under the influence of seawater waves and currents. Ensuring the stability of the configuration of the dynamic submarine cable 1 at both the far and near positions is the key to ensuring the good condition of the dynamic submarine cable 1. In this embodiment, the sliding connection between the anchor and the sleeve 4 can improve the stability of the underwater configuration section 9, thereby ensuring that the cable can have a stable underwater configuration in shallow waters.

[0037] The sleeve 4 is fixedly fitted onto the cable. One end of the anchor is connected to the fixed base, and the other end is slidably connected to the sleeve 4, allowing the anchor to slide relative to the extension direction of the sleeve 4. This allows the anchor to move along the sleeve 4 towards the seabed when in a distant position, providing extra leeway for the underwater configuration section 9 and ensuring high overall stability. When in a near position, the anchor slides relative to the sleeve 4 to the end closest to the underwater configuration section 9, retrieving excess length to maintain the shape of the underwater configuration section 9, preventing interference with the seabed, and avoiding dangerous situations such as twisting. Overall, this improves the operational reliability of the dynamic submarine cable 1 system.

[0038] According to a specific embodiment of the present invention, the sleeve 4 includes a tube body 41 and a sliding structure 44. The tube body 41 is sleeved on the submarine cable, and a sliding groove 43 is provided on the tube body 41. The sliding structure 44 is disposed in the sliding groove 43 so that the sliding structure 44 slides along the sliding groove 43. The anchor system is connected to the sliding structure 44. The sleeve 4 is generally a tube body 41 structure. The tube body 41 of the sleeve 4 is fixedly sleeved on the outside of the cable. A sliding groove 43 is provided on the sleeve 4. The sliding structure 44 slides in cooperation with the sliding groove 43. The anchor system is connected to the sliding structure 44 so that the sliding structure 44 can drive the anchor system to slide together during the sliding process, so that the sliding structure 44 is located in different positions at different positions.

[0039] It is understandable that the sliding structure 44 slides within the sliding groove 43 of the sleeve 4. The sliding structure 44 is connected by an anchor, so that when the dynamic submarine cable 1 is in different positions, the sliding structure 44 can provide assistance at different positions to improve the stability of the underwater configuration segment 9 submarine cable.

[0040] In specific configurations, in some embodiments, the sliding structure 44 includes a slider 441, which slides in conjunction with a sliding groove 43. A lifting device 45 is provided on the slider 441, and the lifting device 45 is rotatably connected to the slider 441. The lifting device 45 is used to connect to the anchor system. The lifting device 45 is used for fixed connection to the anchor system, and the rotatable connection of the lifting device 45 enables the anchor system to achieve stable operation in various postures.

[0041] It is understandable that the underwater dynamic submarine cable 1 will continuously move and have various postures under the action of seawater waves and currents. In this embodiment, the stability of the anchor connection can be ensured by the rotation connection of the lifting device 45, and the anchor system can be prevented from being pulled and rotated, thereby causing damage to the anchor system.

[0042] In a specific example, as shown in Figures 2 and 3, the outer surface of the sleeve 4 is made of polyurethane material, and the sleeve 4 has a metal skeleton 42 inside. The metal skeleton 42 and the outer shell of the sleeve 4 are provided with sliding grooves 43. The slider 441 slides along the sliding groove 43. The metal skeleton 42 improves the overall structural strength of the sleeve 4, making it more load-bearing.

[0043] In some embodiments of the present invention, the sliding groove 43 is spirally arranged around the tube body 41. That is, the sliding groove 43 is formed into a spiral structure, which allows the sliding structure 44 to have more degrees of freedom of displacement when the attitude of the tail of the dynamic submarine cable 1 changes, enabling better adjustment of the linear allowance, and also allowing all parts of the surface of the sleeve 4 to bear the load, avoiding deformation caused by local overuse, improving the fatigue life of the sleeve 4, and reducing the design cost of the sleeve 4.

[0044] According to another embodiment of the present invention, as shown in FIG. 4, the sliding structure 44 includes a gear 442 and a rack 46. The rack 46 is embedded in one side wall of the sliding groove 43, and the gear 442 is slidably disposed in the sliding groove 43. The gear 442 is rotatable about its own central axis and meshes with the rack 46. A lifting device 45 is provided on the gear 442, and the lifting device 45 is rotatably connected to the gear 442. In addition to sliding directly through the slider 441, this embodiment provides a sliding structure 44 that can be achieved through the engagement of the gear 442 and the rack 46. The arrangement of the gear 442 and the rack 46 makes the sliding smoother, thereby achieving stable adjustment of the sleeve.

[0045] In a specific configuration, gear 442 and rack 46 are made of metal, and an anti-corrosion coating is applied to the exterior of gear 442 and rack 46 to facilitate their use in seawater environments and improve the service life of the structure. Alternatively, gear 442 and rack 46 can be made of high-strength plastic to prevent corrosion in seawater. Of course, since the solution of this invention is applied to shallow water areas, the anti-corrosion coating is sufficient to meet the usage requirements and ensures a guaranteed service life.

[0046] Understandably, during the change in position of the dynamic submarine cable 1, the fixed component moves the gear 442 on the rack 46 to adjust the length of the near-seabed section of the dynamic submarine cable 1. When the floating platform 5 is far away, it provides an additional linear length margin to prevent the submarine cable from being straightened and taut. When the floating platform is near the floating platform, it retracts the excess linear length margin to prevent the submarine cable from twisting.

[0047] In the specific setup, the sleeve 4 is relatively long, extending from the underwater configuration section 9 to the pre-buried submarine cable section 8, so as to completely cover the section of the dynamic submarine cable 1 that is in contact with the seabed. The sleeve 4 is used to prevent the dynamic submarine cable from directly contacting the seabed, so as to provide anti-abrasion protection for the lower part of the dynamic submarine cable 1 and improve the service life of the submarine cable.

[0048] It is understandable that during the attitude change of the dynamic submarine cable 1, the lower part of the submarine cable comes into contact with the seabed and rubs against it, which causes severe wear to the lower part of the submarine cable. In this embodiment, the lower part of the submarine cable is protected by the sleeve 4, which avoids severe wear of the lower part of the submarine cable during attitude change and improves the service life of the submarine cable.

[0049] According to one embodiment of the present invention, a power generation module is provided on the floating platform 5, and the power generation module is electrically connected to the dynamic submarine cable 1. The power generation module can make full use of the resources of the nearshore waters to generate electricity, thereby providing electrical energy to the entire system and realizing the transmission of electrical energy.

[0050] In a specific configuration, the power generation modules include at least one of the following: photovoltaic power generation modules, wind power generation modules, and tidal power generation modules. By setting up these power generation modules, the resources of nearshore waters can be fully utilized, achieving effective power generation.

[0051] According to the dynamic submarine cable 1 system for shallow sea areas provided by the present invention, the submarine cable body of the underwater configuration section 9 is provided with a buoyancy device 3 and a counterweight device 2, which are alternately arranged to form a waveform state through the buoyancy device 3 and the counterweight device 2.

[0052] According to the embodiment provided by the present invention, the fixed base includes a counterweight plate 47, which is disposed on the seabed. A connecting structure 48 is provided on the counterweight plate 47, and the connecting structure 48 is rotatably connected to the counterweight plate 47. The counterweight plate 47 is the main structure of the fixed base, which can serve as an anchoring foundation, constrain the anchoring system within the near-surface range of the dynamic submarine cable, and maintain the stability of the underwater configuration section 9 in both near and far-surface positions, thereby improving the stability of the entire system.

[0053] Among them, the connecting structure 48 is a lifting device. The connecting structure 48 can be rotated in all directions through a rotating connection, thereby avoiding damage to the anchorage during the dynamic change of attitude of the submarine cable 1.

[0054] According to one embodiment of the present invention, a bending reinforcement 7 is provided at the connection between the dynamic submarine cable 1 and the floating platform 5, wherein the bending reinforcement 7 is used to prevent the dynamic submarine cable 1 from bending excessively. Specifically, an anchoring part 6 is provided at the bottom of the floating platform 5, and the bending reinforcement 7 is connected to the anchoring part 6. The connection between the bending reinforcement 7 and the dynamic submarine cable 1 can prevent the dynamic submarine cable 1 from bending excessively, thereby achieving protection for the platform portion of the dynamic submarine cable 1.

[0055] Through the above description of the embodiments, those skilled in the art can clearly understand that in shallow sea waters, where the water depth is shallow and the waves and currents are large, the operating environment of the floating platform using the dynamic submarine cable 1 is quite harsh. The hull shape of the dynamic submarine cable 1 must meet the platform's offset requirements while ensuring that it does not float above the water surface or interfere with the seabed in the vertical direction, making the hull shape construction quite difficult. Using the underwater dynamic submarine cable 1 system provided by this invention, the dynamic submarine cable 1 can meet the usage requirements of the floating platform in shallow waters. It has sufficient margin to allow the cable to offset with the large requirements of the floating platform, while reducing the risk of the dynamic submarine cable 1 floating above the water surface or interfering with the seabed in the vertical direction, enabling the floating platform to operate stably in shallow sea areas.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dynamic submarine cable system suitable for shallow sea areas, characterized in that, include: floating platform; A dynamic submarine cable, comprising an underwater configuration section and a pre-buried submarine cable section, wherein the underwater configuration section is constructed in a wave-like state and the pre-buried submarine cable section is fixedly installed on the seabed; The fixing component includes a fixing base, a sleeve, and an anchor system. The fixing base is fixedly installed on the seabed. The sleeve is fitted onto the submarine cable between the underwater configuration section and the pre-buried submarine cable section. One end of the anchor system is fixedly connected to the fixing base, and the other end of the anchor system is slidably connected to the sleeve, providing additional linear margin for the underwater configuration section and maintaining the stability of the underwater configuration section.

2. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, The sleeve includes a tube body and a sliding structure. The tube body is sleeved on the submarine cable and has a sliding groove. The sliding structure is disposed in the sliding groove so that the sliding structure slides along the sliding groove. The anchor system is connected to the sliding structure.

3. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 2, characterized in that, The sliding structure includes a slider that slides into the sliding groove. A lifting device is provided on the slider and is rotatably connected to the slider. The lifting device is used to connect to the anchor system.

4. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 2, characterized in that, The sliding groove is spirally arranged around the tube body.

5. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 2, characterized in that, The sliding structure includes a gear and a rack. The rack is embedded in one side wall of the sliding groove. The gear is slidably disposed in the sliding groove and can rotate around its own central axis. The gear meshes with the rack. A lifting device is provided on the gear and is rotatably connected to the gear.

6. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, The floating platform is equipped with a power generation module, which is electrically connected to the dynamic submarine cable.

7. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, The underwater cable body of the underwater configuration section is equipped with a buoyancy device and a counterweight device. The buoyancy device and the counterweight device are arranged alternately to form a waveform state.

8. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, The fixed base includes a counterweight plate, which is disposed on the seabed. The counterweight plate is provided with a connecting structure, which is rotatably connected to the counterweight plate.

9. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, A bending reinforcement is provided at the connection between the dynamic submarine cable and the floating platform to prevent the dynamic submarine cable from bending excessively.

10. The underwater dynamic submarine cable system suitable for shallow sea areas according to claim 1, characterized in that, The sleeve extends from the underwater configuration section to the pre-buried submarine cable section to completely cover the section of the dynamic submarine cable that is in contact with the seabed. The sleeve is used to prevent the dynamic submarine cable from directly contacting the seabed.

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