Trans-media photoelectric transmission umbilical

Abstract

The application provides a cross-media photoelectric transmission umbilical cable, comprising an optical unit, an electrical unit, an inner sheath, an outer sheath assembly and a floating assembly; the inner sheath is provided with a containing cavity, the optical unit and the electrical unit are located in the containing cavity; the outer sheath assembly is arranged around the outer periphery of the inner sheath; the floating assembly is arranged around the outer periphery of the outer sheath assembly, the floating assembly comprises a plurality of floating bases, a plurality of floating members and a plurality of elastic members, the plurality of floating bases are arranged at intervals in the circumferential direction, and a floating groove is formed between any two adjacent floating bases, the floating groove is provided with the floating member and the elastic member; wherein the floating member is slidably arranged in the floating groove in the radial direction, the elastic member is configured to provide an elastic force to the floating member, and based on the elastic force, the floating member moves away from one side of the inner sheath.

Description

Technical Field

[0001] This application relates to the field of cable technology, and in particular to a cross-medium optoelectronic transmission umbilical cable. Background Technology

[0002] For some drones that require underwater operations, these drones are mostly connected to the mother ship via an umbilical cable. The umbilical cable needs to accompany the drone not only on the surface but also underwater. Umbilical cables are mostly designed to be lightweight to minimize their impact on the drone operating on the surface. However, these cables have poor stability underwater, which affects the drone's underwater operations. As a result, the umbilical cable cannot meet the needs of both surface and underwater operations for the drone. Summary of the Invention

[0003] This application provides a cross-medium optoelectronic transmission umbilical cable to solve the problem that existing umbilical cables cannot meet the needs of both surface and underwater operations.

[0004] This application provides a cross-medium optoelectronic transmission umbilical cable, including an optical unit, an electrical unit, an inner sheath, an outer sheath assembly, and a floating assembly. The inner sheath has a receiving cavity, within which the optical unit and the electrical unit are located. The outer sheath assembly surrounds the outer periphery of the inner sheath. The floating assembly surrounds the outer periphery of the outer sheath assembly. The floating assembly includes multiple floating bases, multiple floating elements, and multiple elastic elements. The multiple floating bases are spaced circumferentially, and a floating groove is formed between any two adjacent floating bases. Each floating groove contains the floating element and the elastic element. The floating element is radially slidably disposed within the floating groove, and the elastic element is configured to provide an elastic force to the floating element. Based on this elastic force, the floating element moves away from the inner sheath.

[0005] In one possible implementation, the floating component has a first state and a second state; the first state is configured such that the floating component and the outer protective component are spaced apart and form a radial gap; the second state is configured such that the floating component abuts against the outer protective component. The floating component moves based on the elastic element, and the floating component can switch from the second state to the first state.

[0006] In one possible implementation, the floating base has limiting portions protruding on opposite sides in the circumferential direction. The limiting portions are used to radially abut against the floating member to limit the maximum travel of the floating member toward the side away from the inner sheath.

[0007] In one possible implementation, when the floating component is in the first state, the limiting portion abuts against the floating member, and the outer peripheral surfaces of the plurality of floating members and the outer peripheral surfaces of the plurality of floating bases are in contact with each other to form an annular surface.

[0008] In one possible implementation, the outer protective assembly has a plurality of mounting bases protruding on the side away from the inner protective sleeve, and each of the floating grooves has a mounting base located on the side of the floating member closer to the inner protective sleeve. One end of the elastic element is elastically connected to the mounting base, and the other end of the elastic element is elastically connected to the floating element.

[0009] In one possible implementation, the mounting base has a mounting groove on the side away from the inner sheath, the floating member is at least partially slidably disposed in the mounting groove, and the elastic member is located in the mounting groove.

[0010] In one possible implementation, the floating component includes a floating body and a floating support, the floating support being integrally formed on the side of the floating body near the inner sheath, the floating support being at least partially slidably disposed within the mounting groove, and the sum of the radial thicknesses of the floating body and the mounting base being less than the depth of the floating groove.

[0011] In one possible implementation, the floating base is configured to undergo elastic deformation, and the floating base contains a plurality of elastic polymer microspheres.

[0012] In one possible implementation, the floating groove is inclined to each other on its two opposing inner walls in the circumferential direction, and the size of the opening at the end of the floating groove away from the inner sheath is larger than the size of the opening at the end closer to the inner sheath.

[0013] In one possible implementation, the number of floating components is set to multiple, and the multiple floating components are arranged sequentially along the axial direction of the outer protective component, with any two adjacent floating components being closely connected to each other.

[0014] The cross-medium optoelectronic transmission umbilical cable of this application utilizes floating components on the outer periphery of the outer sheath assembly. These floating components can slide radially within floating grooves. When the umbilical cable operates on water, the floating groove design creates an axial gap in the cable, reducing axial wind resistance. When lateral airflow blows towards the umbilical cable, the floating components move inward within the floating grooves, forming a grooved structure on the entire outer periphery of the cable. This further reduces lateral wind resistance, improving the stability of the umbilical cable during surface operations and preventing interference with connected drones and other equipment. When the umbilical cable operates underwater, the water flow compresses the cable, causing the floating components to move inward within the floating grooves. This also creates a grooved structure on the entire outer periphery of the cable, reducing lateral flow resistance. Furthermore, the inward retraction of multiple floating components increases the cable's net weight in water, further enhancing its stability during underwater operations and preventing interference with connected drones and other equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-medium optoelectronic transmission umbilical cable of this application in one embodiment.

[0016] Figure 2 for Figure 1 A partially enlarged schematic diagram of region II corresponding to the cross-medium optoelectronic transmission umbilical cable.

[0017] Figure 3 This is a schematic diagram of the axial direction of the cross-medium optoelectronic transmission umbilical cable of this application in one embodiment.

[0018] Key component symbols: 100, Transmedium-based optoelectronic transmission umbilical cable; 10, Electrical unit; 11, Conductor; 12, Shielding layer; 13, Insulation layer; 20, Optical unit; 21, Fiber core; 22, Stainless steel tube; 30, Inner sheath; 31, Receiving cavity; 32, Wrapping layer; 33, Filler; 40, Outer sheath assembly; 41, Armor layer; 42, Outer sheath; 420, Mounting base; 421, Mounting groove; 50, Floating assembly; 51, Floating base; 511, Limiting part; 52, Floating component; 521, Floating body; 5210, Limiting groove; 522, Floating support; 53, Elastic component; 54, Floating groove; 60, Elastic polymer microsphere.

[0019] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0020] The following description will refer to the accompanying drawings to provide a more complete picture of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. The same reference numerals denote the same or similar components.

[0021] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0022] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0023] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 2 As shown, this embodiment provides a cross-medium optoelectronic transmission umbilical cable 100, including an optical unit 20, an electrical unit 10, an inner sheath 30, an outer sheath assembly 40, and a floating assembly 50.

[0025] The inner sheath 30 is generally annular in structure and may be made of cross-linked polyethylene or other insulating materials. A receiving cavity 31 is provided within the inner sheath 30, where the optical unit 20 and the electrical unit 10 are located. An outer sheath assembly 40 surrounds the outer periphery of the inner sheath 30, and a floating assembly 50 surrounds the outer periphery of the outer sheath assembly 40. The floating assembly 50 includes multiple floating bases 51, multiple floating elements 52, and multiple elastic elements 53. The multiple floating bases 51 are spaced apart circumferentially, and a floating groove 54 is formed between any two adjacent floating bases 51. The number of floating grooves 54, the number of floating elements 52, and the number of elastic elements 53 are all the same, and each floating groove 54 contains a floating element 52 and an elastic element 53. The floating element 52 is radially slidably disposed within the floating groove 54, and the elastic element 53 is configured to provide an elastic force to the floating element 52. Based on this elastic force, the floating element 52 moves radially away from the inner sheath 30.

[0026] Thus, the cross-medium optoelectronic transmission umbilical cable 100 of this application, by setting a floating component 50 on the outer periphery of the outer sheath component 40, allows the floating component 52 to slide radially within the floating groove 54. When the umbilical cable is operating on water, the design of the floating groove 54 creates an axial gap in the umbilical cable, reducing axial wind resistance. When lateral airflow blows towards the umbilical cable, the floating component 52 moves inward within the floating groove 54, thereby forming a groove structure on the entire outer periphery of the umbilical cable, reducing lateral wind resistance and improving the stability of the umbilical cable during water operations, preventing interference with the underwater operations of connected drones and other equipment. When the umbilical cable is operating underwater, the water flow compresses the umbilical cable, causing the floating component 52 to move inward within the floating groove 54, also forming a groove structure on the entire outer periphery of the umbilical cable, reducing lateral flow resistance. Furthermore, the inward retraction of multiple floating components 52 increases the net weight of the umbilical cable in water, thereby improving the stability of the umbilical cable during underwater operations and preventing interference with the underwater operations of connected drones and other equipment.

[0027] Please combine Figures 1 to 2 In one embodiment, the optical unit 20 includes a plurality of fiber cores 21 and a stainless steel tube 22. The plurality of fiber cores 21 are inserted into the stainless steel tube 22, and the stainless steel tube 22 is filled with fiber grease. The number of optical units 20 can be multiple, and all optical units 20 are located in the receiving cavity 31. The optical units 20 can be used for signal transmission and can be used to monitor the temperature or strain status along the umbilical cable.

[0028] In this embodiment, the electrical unit 10 includes a conductor 11, a shielding layer 12, and an insulating layer 13 arranged sequentially from the inside out. The conductor 11 can be formed by twisting three wires together, or it can be formed by other numbers of wires, such as a single wire or five or more wires. The specific structure of the electrical unit 10 can be selected according to actual needs.

[0029] It is worth noting that the specific number and structure of the electrical unit 10 and optical unit 20 in the inner sheath 30 can be designed according to actual needs and are not limited to the above.

[0030] In addition, the inner sheath 30 is provided with multiple filler elements 33, which fill between multiple optical units 20 and multiple electrical units 10 to ensure roundness. The filler elements 33 may be of the form of filler rope or the like.

[0031] In this embodiment, the cross-medium optoelectronic transmission umbilical cable 100 further includes a wrapping layer 32, which covers the outer periphery of the structure formed by the twisting of multiple electrical units 10, multiple optical units 20, and multiple fillers 33. An inner sheath 30 is disposed around the outer periphery of the wrapping layer 32. The wrapping layer 32 may adopt a structure such as a water-blocking tape.

[0032] Please combine Figures 1 to 2In one embodiment, the outer protective assembly 40 includes an armor layer 41 and an outer sheath 42 arranged sequentially from the inside to the outside. The armor layer 41 covers the outer periphery of the inner sheath 30 and may be formed of high-strength fibers, such as aramid or polyethylene twisted together. The outer sheath 42 may be made of a wear-resistant and seawater-resistant polymer material and covers the outer periphery of the armor layer 41.

[0033] In addition, the outer protective component 40 may also include other layered structures such as a water-blocking layer, an electromagnetic shielding layer, and a foaming layer, and the specific composition of its layered structure can be selected according to actual needs.

[0034] Please combine Figures 1 to 2 In one embodiment, the floating component 50 has a first state and a second state. The first state is defined as a state in which the floating member 52 and the outer protective component 40 are spaced apart and form a radial gap, and the second state is defined as a state in which the floating member 52 abuts against the outer protective component 40. The floating component 50 can switch from the second state to the first state based on the movement of the floating member 52 driven by the elastic member 53.

[0035] When the umbilical cable is on water and not subjected to significant lateral airflow, the floating assembly 50 is in its first state, and the radial gap formed by the floating assembly 50 extends along the axial direction of the umbilical cable. In this state, axial airflow can pass through the radial gap, thereby reducing the axial flow resistance of the umbilical cable during towing. Furthermore, in this state, the outer peripheral surfaces of the multiple floating members 52 and the outer peripheral surfaces of the multiple floating bases 51 are in contact with each other to form an annular surface, thereby closing the openings of the multiple floating slots 54 through the multiple floating members 52, so that the entire umbilical cable generally presents a cylindrical structure.

[0036] When the umbilical cable is on the water and subjected to a large lateral airflow, the lateral airflow acts on the floating member 52 and pushes the floating member 52 to move inward, thereby forming a groove structure in the floating groove 54 of the umbilical cable. The airflow can enter the groove structure, which can reduce the lateral wind resistance compared to the cylindrical structure of the umbilical cable.

[0037] When the umbilical cable is operating underwater, the water pressure acts on the floating member 52 and pushes the floating member 52 to move inward, thereby forming a groove structure at the floating groove 54. Water can enter the groove structure from the side, which can reduce the lateral flow resistance compared to the cylindrical structure of the umbilical cable.

[0038] In this embodiment, the cross-sectional shape of the floating base 51 is approximately an isosceles trapezoid, and the floating base 51 is integrally formed with the outer sheath 42. Along the radial direction of the umbilical cable, the inner surface of the floating base 51 is an arc surface and fits against the outer surface of the outer sheath 42. The outer surface of the floating base 51 is also an arc surface, and the arc length of the inner surface of the floating base 51 is smaller than the arc length of its outer surface.

[0039] Along the circumference of the outer sheath 42, the two opposite sides of the floating base 51 are inclined to each other to guide the sliding of the floating member 52. Correspondingly, the cross-sectional shape of the floating groove 54 is also approximately an isosceles trapezoid. Along the circumference of the outer sheath 42, the two opposite inner walls of the floating groove 54 are inclined to each other in the circumferential direction, and the size of the opening at the end of the floating groove 54 away from the inner sheath 30 is larger than the size of the opening at the end closer to the inner sheath 30.

[0040] Furthermore, the floating base 51 is configured to undergo elastic deformation, for example, by using materials such as rubber, to ensure smooth sliding of the floating component 52. The floating base 51 contains multiple elastic polymer microspheres 60, each with a spherical structure. The outer shell of the elastic polymer microspheres 60 is made of thermoplastic polymer materials, such as acrylonitrile copolymer or PDMS elastomer, and the microspheres 60 are encapsulated with a diluted inert gas such as carbon dioxide or nitrogen. The elastic polymer microspheres 60 can undergo elastic deformation under pressure and return to their original position when the pressure is released, thereby achieving density adjustment of the floating base 51. When the floating base 51 is not subjected to external pressure, its overall density is low and its buoyancy is high.

[0041] In this embodiment, the outer protective component 40 has a plurality of mounting bases 420 protruding from the side away from the inner protective sleeve 30. The mounting bases 420 are made of the same material as the outer protective sleeve 42, and the plurality of mounting bases 420 are integrally formed on the outer peripheral surface of the outer protective sleeve 42. The number of the plurality of mounting bases 420 is the same as the number of the plurality of floating grooves 54, and the plurality of mounting bases 420 are arranged in a one-to-one correspondence with the plurality of floating grooves 54. Each floating groove 54 has a mounting base 420, and the mounting base 420 is located on the side of the floating member 52 closer to the inner protective sleeve 30.

[0042] The shape and size of the mounting base 420 are adapted to the area of ​​the floating groove 54 in which it is located, so that the floating base 51 is supported by the mounting base 420 on both opposite sides in the circumferential direction. This prevents the floating base 51 from undergoing large deformation in the circumferential direction when subjected to radial compression, which would compress the floating member 52 and the elastic member 53 and affect the subsequent operation of the floating member 52 and the elastic member 53.

[0043] Along the radial direction of the outer sheath 42, the mounting base 420 has two mounting grooves 421 on the side away from the inner sheath 30. Viewed radially from the outer sheath 42, the two mounting grooves 421 are located at the two circumferential ends of the surface of the mounting base 420 on the side away from the inner sheath 30. Viewed circumferentially from the outer sheath 42, the two mounting grooves 421 are located on opposite sides of the mounting base 420. Furthermore, along the circumference of the outer sheath 42, the groove walls of the mounting grooves 421 are parallel to the side surfaces of adjacent floating bases, such that the extending direction of the mounting grooves 421 is parallel to the inclination direction of the side surfaces of adjacent floating bases.

[0044] Along the radial direction of the outer sheath 42, the depth of the mounting groove 421 is less than the thickness of the mounting base 420, so that the side of the mounting base 420 without the mounting groove 421 can abut against the floating base.

[0045] In this embodiment, the floating member 52 is at least partially slidably disposed within the mounting groove 421, and the elastic member 53 is located within the mounting groove 421. One end of the elastic member 53 is elastically connected to the mounting base 420, and the other end of the elastic member 53 is elastically connected to the floating member 52.

[0046] Specifically, the floating component 52 includes a floating body 521 and a floating support 522. The floating support 522 is integrally formed on the side of the floating body 521 near the inner sheath 30, and the floating support 522 is at least partially slidably disposed in the mounting groove 421.

[0047] The density of the material of the floating component 52 is greater than that of seawater, and the floating component 52 can be made of materials such as polyvinyl chloride. The cross-section of the floating body 521 is approximately fan-shaped. When the floating assembly 50 is in the first state, the surface of the floating body 521 away from the inner sheath 30 is in contact with the outer surface of the floating base 51, and the sidewalls of the floating component 52 on opposite sides in the circumferential direction abut against their adjacent floating bases 51. Thus, when the floating component 52 slides inward in the floating groove 54, the floating component 52 abuts against the two floating bases 51 on both sides in the circumferential direction, thereby causing the floating bases 51 to undergo elastic deformation. The elastic deformation of the floating bases 51 compresses the elastic polymer microspheres 60, thereby increasing the density of the entire floating base 51, reducing the buoyancy of the umbilical cable in the water, and thus ensuring the stability of the umbilical cable during underwater operation. Furthermore, since the floating member 52 will squeeze the floating base 51 during the inward movement, the floating member 52 can be in a tightened state after moving inward, avoiding the floating member 52 from moving back and forth in the radial direction due to changes in airflow or water flow, thus ensuring the stability of the umbilical cable operation. After the umbilical cable enters the air from underwater, the floating member 52 can move directly outward to the first state under the drive of the elastic member 53.

[0048] Furthermore, along the radial direction of the outer sheath 42, the floating body 521 is located on the side of the mounting base 420 away from the outer sheath 42. Two floating supports 522 are provided, integrally formed on the side of the floating body 521 near the mounting base 420. Both floating supports 522 are fitted against adjacent floating bases 51 and the sidewalls of the mounting base 420 forming the mounting groove 421, thereby ensuring that the sliding direction of the floating supports 522 remains unchanged and improving the sliding stability of the floating component 52. The extending directions of the two floating supports 522 are parallel to the sidewalls of their adjacent floating bases 51.

[0049] Specifically, the sum of the radial thicknesses of the floating body 521 and the mounting base 420 is less than the depth of the floating groove 54, to ensure that the floating member 52 can move relative to the mounting base 420 to form a radial gap between the floating body 521 and the mounting base 420.

[0050] In this embodiment, the elastic polymer microspheres 60 can be concentrated in the regions at both ends of the floating base 51 in the circumferential direction, so that when the floating member 52 squeezes these two regions of the floating base 51, it can better act on the elastic polymer microspheres 60.

[0051] In this embodiment, the elastic element 53 can be an elastic structure such as a helical spring, and the extension direction of the elastic element 53 is parallel to the extension direction of the floating support 522 to which it is connected. Multiple elastic elements 53 can be provided in each mounting groove 421, and the multiple elastic elements 53 are arranged sequentially at intervals along the axial direction of the umbilical cable. Furthermore, one end of the elastic element 53 is elastically connected to the floating support 522, and the other end of the elastic element 53 is elastically connected to the bottom wall of the mounting groove 421 near the outer sheath 42.

[0052] Please combine Figures 1 to 2 In one embodiment, the floating base 51 has a limiting portion 511 protruding on opposite sides in the circumferential direction. The limiting portion 511 is used to abut against the floating member 52 in the radial direction to limit the maximum stroke of the floating member 52 moving away from the inner sheath 30.

[0053] The limiting part 511 is integrally formed with the floating base 51, and the material of the limiting part 511 is the same as that of the floating base 51. Along the radial direction of the outer sheath 42, the outer surface of the limiting part 511 is in contact with the outer surface of the floating base 51. Along the circumferential direction of the outer sheath 42, the surface of the limiting part 511 on the side away from the floating base 51 is parallel to the adjacent surface of the floating base 51.

[0054] Correspondingly, along the circumference of the outer sheath 42, limiting grooves 5210 are provided on both opposite sides of the floating body 521. The shape and size of the limiting grooves 5210 are adapted to the limiting part 511, and the limiting part 511 is accommodated within the limiting grooves 5210. Along the sliding direction of the floating member 52, the limiting part 511 abuts against the bottom wall of the limiting groove 5210 near the outer sheath 42, thereby limiting the floating member 52 to the first state by the limiting part 511, preventing the floating member 52 from continuing to slide outward in the first state and partially leaving the floating groove 54.

[0055] Furthermore, when the floating component 50 is in the first state, the limiting part 511 abuts against the floating member 52, and the outer peripheral surfaces of the plurality of floating members 52 and the outer peripheral surfaces of the plurality of floating bases 51 are in contact with each other to form an annular surface.

[0056] Please combine Figure 3In one embodiment, the number of floating components 50 is set to multiple, and multiple floating components 50 are arranged sequentially along the axial direction of the outer protective component 40, and any two adjacent floating components 50 are closely connected to each other.

[0057] Any two adjacent floating components 50 are tightly connected to each other, that is, there is no gap between any two adjacent floating components 50 along the axial direction of the umbilical cable, thereby improving the continuity of the umbilical cable. Furthermore, when the umbilical cable is partially underwater and partially above water, the states of the floating components 50 underwater and above water can be inconsistent to ensure the stability of the umbilical cable's operation in both underwater and above-water sections, thus increasing the usability of the umbilical cable.

[0058] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A cross-medium optoelectronic transmission umbilical cable, comprising an optical unit and an electrical unit; characterized in that, The cross-medium optoelectronic transmission umbilical cable also includes: An inner sheath has a cavity inside, in which the optical unit and the electrical unit are located; An outer protective assembly is disposed around the outer periphery of the inner protective sleeve; A floating assembly is arranged around the outer periphery of the outer protective assembly. The floating assembly includes multiple floating bases, multiple floating elements, and multiple elastic elements. The multiple floating bases are arranged circumferentially at intervals, and a floating groove is formed between any two adjacent floating bases. Each floating groove is provided with the floating element and the elastic element. The floating member is slidably disposed radially within the floating groove, and the elastic member is configured to provide an elastic force to the floating member, based on which the floating member moves toward a side away from the inner sheath. The floating component has a first state and a second state; the first state is a state in which the floating component and the outer protective component are spaced apart and form a radial gap; the second state is a state in which the floating component abuts against the outer protective component; the floating component can switch from the second state to the first state based on the movement driven by the elastic element. The floating base has limiting portions protruding on opposite sides in the circumferential direction. When the floating component is in the first state, the limiting portions abut against the floating member, and the outer peripheral surfaces of the multiple floating members and the outer peripheral surfaces of the multiple floating bases are connected to each other to form an annular surface.

2. The cross-medium optoelectronic transmission umbilical cable as described in claim 1, characterized in that, The limiting portion is used to radially abut against the floating member to limit the maximum travel of the floating member toward the side away from the inner sheath.

3. The cross-medium optoelectronic transmission umbilical cable as described in claim 1, characterized in that, The outer protective component has multiple mounting bases protruding on the side away from the inner protective sleeve, and each of the floating grooves has a mounting base located on the side of the floating component closer to the inner protective sleeve. One end of the elastic element is elastically connected to the mounting base, and the other end of the elastic element is elastically connected to the floating element.

4. The cross-medium optoelectronic transmission umbilical cable as described in claim 3, characterized in that, The mounting base is provided with a mounting groove on the side away from the inner sheath, the floating member is at least partially slidably disposed in the mounting groove, and the elastic member is located in the mounting groove.

5. The cross-medium optoelectronic transmission umbilical cable as described in claim 4, characterized in that, The floating component includes a floating body and a floating support. The floating support is integrally formed on the side of the floating body near the inner sheath. The floating support is at least partially slidably disposed in the mounting groove. The sum of the radial thicknesses of the floating body and the mounting base is less than the depth of the floating groove.

6. The cross-medium optoelectronic transmission umbilical cable as described in claim 1, characterized in that, The floating base is configured to undergo elastic deformation, and the floating base contains a plurality of elastic polymer microspheres.

7. The cross-medium optoelectronic transmission umbilical cable as described in claim 1, characterized in that, The floating groove is inclined to each other on its two opposite inner walls in the circumferential direction, and the size of the opening at the end of the floating groove away from the inner sheath is larger than the size of the opening at the end closer to the inner sheath.

8. The cross-medium optoelectronic transmission umbilical cable as described in claim 1, characterized in that, The number of floating components is set to multiple, and the multiple floating components are arranged sequentially along the axial direction of the outer protective component, with any two adjacent floating components being closely connected to each other.

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