70results about "Floating cables" patented technology

The utility model discloses a dynamic submarine cable system for multiple platforms, which comprises a dynamic submarine cable, a bending limiter, J-shaped cable protection pipes, a buoyancy block, a floating type photovoltaic platform and a fan tower drum, two groups of J-shaped cable protection pipes are respectively arranged on the floating type photovoltaic platform and the fan tower drum, and the bending limiter is arranged at the bottom of each J-shaped cable protection pipe; the dynamic submarine cable penetrates through the J-shaped cable protection pipes and the bending limiting devices on the two sides, and a plurality of buoyancy blocks are arranged on the dynamic submarine cable and located between the two bending limiting devices in a sleeving mode. The dynamic cable system can adapt to changes of marine environments such as waves, tides and ocean currents, and therefore the safety performance of submarine cables is improved; if the tension of the submarine cable is too large, the wet weight can be reduced by increasing the length of the submarine cable or adjusting the using number of the buoyancy blocks, and if the curvature of the submarine cable is too large, the dynamic section length of the submarine cable needs to be shortened, and meanwhile, the tension is increased and adjusted to meet the requirement.

The invention is suitable for the technical field of floating cables, and provides a floating power cable based on communication engineering, which comprises a conductive part, a signal part and two clamping parts, the conductive part and the signal part are clamped and matched through the two clamping parts; each of the conductive part and the signal part comprises a cross-linked polyethylene insulated flexible substrate; clamping rubber strips are symmetrically fixed on the surface of the cross-linked polyethylene insulating flexible substrate, and clamping grooves matched with the clamping rubber strips are symmetrically formed in the bottom surface of the cross-linked polyethylene insulating flexible substrate; the clamping part comprises two groups of U-shaped rubber seats which are arranged in parallel; a rubber plate is fixed between the end parts of the two U-shaped rubber seats; airbags are fixed on the side surfaces of the rubber plates; according to the floating power cable, the clamping parts are respectively clamped and matched with the conductive parts and the signal parts, so that a traditional cable integrated structure is replaced, and later targeted overhaul and maintenance are facilitated; through the arrangement of the flat structures of the conductive part and the signal part, the conductive part and the signal part are convenient to roll and transport, and the overall buoyancy effect of the cable is improved by cooperating with the use of the air bag.

A floating photovoltaic cable manufacturing device for offshore photovoltaic systems and a manufacturing method thereof are provided. The device includes a cable body that passes through a rack at a constant speed, a winding frame is provided on one side of the rack, the winding frame is connected to a driving motor through a transmission mechanism, a rotation of the winding frame drives armored steel sheets to be wound on a surface of the cable body; a spot-welding gun provided in the rack through a regulation mechanism, a bottom of the spot-welding gun is aligned with the armored steel sheets; and a resistance band sleeved on surfaces of two sets of driving shafts, the resistance band is attached to the armored steel sheets, and a movement of the cable body enables the driving shafts to rotate on two sides of a connection rack.

A jacket assembly 100 is provided for attachment to a subsea flexible line for facilitating passive control of movement of the flexible line. The jacket assembly comprises a plurality of jackets (FIG

A high-voltage electrical power supply line for the provides a secure and water-proof connection transfer of high-voltage electricity through an inner high-voltage electrical cable between a single point mooring (SPM) buoy and / or a caternary anchor leg mooring (CALM) buoy and an LNG vessel moored to the SPM CALM buoy, with a secured connection on each end of the high-voltage electrical cable, disallowing and prevent current flow through high-voltage electrical cable until a secure and confirmed connection is established between connectors attaching the high-voltage electrical power supply line to the SPM CALM buoy and the LNG vessel.

The invention belongs to the technical field of marine exploration equipment, and discloses an acquisition and transmission module and an offshore seismic exploration acquisition cable using the same. The acquisition and transmission module is embedded in a reserved window of an acquisition cable, and comprises two waterproof end blocks which are in fusion connection with a cable core wire and a cable sheath layer and are used for axial limiting and end sealing; the protective shell is internally provided with a space for accommodating the acquisition control circuit board; the two fixing end caps are used for fixing the shell; the limiting assembly is composed of a lining ring, a limiting block and a limiting supporting column and connected between the waterproof end block and the fixing end cap. The acquisition and transmission module fills gaps of all parts through an internal adhesive structure so as to be solidified into a whole, and the exterior is integrally wrapped by an injection molding protective layer. According to the acquisition and transmission module, the problems that the module is easy to loosen, poor in sealing and difficult to maintain in a complex marine environment are solved, and the stability and reliability of seismic data acquisition are remarkably improved.

The utility model discloses a shore-based cable, which belongs to the field of cables and comprises a plurality of power wire cores which are cabled mutually. The first elastic protection layer, the braid layer assembly, the second elastic protection layer, the buoyancy layer and the third elastic protection layer sequentially wrap the power wire cores. The cable also comprises a plurality of control wire cores which wrap the outside of the braid layer assembly and are cabled with each other. The plurality of control wire cores are located in the second elastic protection layer. The technical effect of the utility model is that the control wire core is not easy to break, bulge and the like.

The application discloses a light storage straight flexible cable with corrosion resistance and a protection structure thereof, and particularly relates to the technical field of light storage straight flexible technology, and comprises a photovoltaic power generation mechanism, wherein the photovoltaic power generation mechanism comprises an annular floating body pipe floating on the water surface, the inner ring of the annular floating body pipe is provided with a high-elasticity film, and the high-elasticity film is uniformly provided with a plurality of photovoltaic panels; the annular floating body pipe is concentrically provided with a mounting ring, the mounting ring is arranged in parallel with the annular floating body pipe, the mounting ring is provided with a protection mechanism, and the protection mechanism comprises a plurality of protection sleeves fixedly mounted on the mounting ring. The protection mechanism is arranged, so that when the high-elasticity film fluctuates up and down with waves, the cable between the photovoltaic panel and the mounting ring is limited to swing in a small range in the protection sleeve, and thus the deformation range of the cable is effectively reduced, and the service life of the cable is significantly prolonged.

The invention discloses a long-service-life water floating light-emitting cable and a manufacturing method, and belongs to the technical field of cables, the long-service-life water floating light-emitting cable comprises a conductor, an insulating layer, a protective layer and a waterproof layer which are sequentially arranged from inside to outside, the conductor is a stranded conductor formed by stranding a plurality of strands of monofilaments, the insulating layer is made of crosslinked polyethylene, the insulating layer is of an 8-shaped structure, and the waterproof layer is made of polyethylene. Two annular rings are formed on the cross section of the 8-shaped structure, and the conductors are arranged in the annular rings; the air bags are symmetrically arranged outside the annular ring; the volume fraction configuration of the air bag enables the overall average density of the cable to be not greater than 0.90 g.cm. According to the invention, the sealed air bag extending axially is arranged in the cable, and the cable can float on the water surface, so that a lot of dependence on a shore-based fixed lamp or an external floating body is eliminated, the cost of on-site mounting and fixing components is remarkably reduced, and the mobility is improved; the air bags are continuously distributed in the axial direction to ensure the stability of the linear floating body, and the maintenance frequency and the labor cost are reduced.

The invention relates to the technical field of offshore wind power generation, and provides a submersible submarine cable. The cable comprises a cable core, a filling layer and a buoyancy adjusting unit. The filling layer is filled and wraps the outer side of the cable core, the buoyancy adjusting unit is embedded in the filling layer, the buoyancy can be flexibly adjusted, and the submarine cable is made to suspend at the target depth between the sea surface and the seabed. Grooves do not need to be excavated on the seabed, the cable is directly put and positioned during laying, the cable can automatically return to the preset depth after maintenance, the process is greatly simplified, and cost is reduced. Suspension design adapts to a complex geological area, geological activity damage is avoided, and the project site selection range is expanded; the heat dissipation mode of direct contact with flowing seawater effectively reduces the temperature of the conductor and avoids the reduction of the current-carrying capacity. The system has static cable stability and dynamic cable anti-fatigue performance and can be directly connected with a floating fan and a mainland power grid, the fault risk of an intermediate joint is eliminated, and the buoyancy adjusting unit can dynamically adapt to environmental changes and maintain suspension stability.

The utility model discloses a flat floating cable for an environment monitoring platform. The cable comprises collection units and an outer sheath collection, the four collection units which are used for two power transmission, one differential signal transmission and one signal control transmission and are arranged side by side in parallel are arranged in an outer sheath, and the periphery of each collection unit is wrapped by the outer sheath; in the collection unit, the peripheries of the cable cores and the filling assemblies are wrapped by a wrapping layer, and the filling assemblies are arranged in gaps between the cable cores and the wrapping layer and gaps in the cable cores. The cable is ingenious in structural design, each collection unit core wire unit, the Kevlar fiber and the water-blocking yarn filling assembly are integrated to form the cable, and due to the design of the flat structure, the installation space is effectively saved, the wiring flexibility is improved, and the cost is reduced. And normal power and signal transmission functions of the cable can be ensured in severe working environments such as deep sea monitoring and underwater construction for a long time.

The utility model discloses an epoxy resin data line comprising a first pipeline, the first pipeline is fixedly connected with a connecting block, the connecting block is fixedly connected with a second pipeline, the second pipeline is sleeved in the first pipeline, one side of the second pipeline is provided with a first shielding sleeve, and the other side of the second pipeline is provided with a second shielding sleeve. The second shielding sleeve is sleeved with an inner sheath, the first shielding sleeve is sleeved with the inner sheath, the inner sheath is fixedly connected with an outer sheath, and the inner wall of the outer sheath is provided with a second hemispherical groove; according to the utility model, the outer sheath and the inner sheath are made of low-density epoxy resin, and the buoyancy of the data line can be controlled by controlling the number of hemispherical grooves in the inner sheath and the outer sheath and the amount of filled helium, so that the data line can face a more complex underwater environment; the second pipeline and the spacer block are additionally arranged outside the power supply core wire, and the heat dissipation efficiency of the power supply core wire is improved by water flow, so that accelerated aging of the data line due to long-term high-temperature environment is avoided.

The utility model relates to a kind of floating luminous cable, cable appearance is flat strip, including mutually spaced first conductor and second conductor, for the insulator of separating and wrapping first conductor and second conductor, the cross section of insulator is dumbbell ball type, one air bag is respectively arranged in the upper and lower space of insulator, the periphery of insulator and two air bags is wrapped with a protective layer, the protective layer includes luminophor, the periphery of protective layer is wrapped with a water-blocking layer.Cable self-luminous changes point light source into line light source, so that fish distribution is more uniform.Water-resistant performance has, meet the requirement of long-term use in water, improve use safety, avoid electric leakage hidden danger.Cable can float on water surface, with warning line effect, float with water surface without affecting drag-net fishing and other production activities.Cable structure is symmetrical, simple, compact, processing is convenient, material cost is low, multipurpose is conducive to reducing breeder investment.

The present invention discloses a composite floating cable with a flat structure, belonging to the technical field of cables, comprising: a float box, inside which a cable body is slidably connected; a clamping unit, rotatably connected inside the float box; a cleaning unit, rotatably connected to the end of the clamping unit; a transmission unit, one end of which is fixed to the side of the clamping unit and the other end is connected to the cleaning unit; and a flushing unit, slidably connected to the side of the clamping unit. When the wind and waves on the water surface are large, the float box will slide on the surface of the cable body driven by the wind and waves, the clamping unit will rotate inside the float box driven by the cable body, and the transmission unit will drive the cleaning unit to revolve and rotate with the cooperation of the clamping unit, which helps the cleaning unit remove the adhesives on the surface of the cable body. At the same time, the flushing unit will quickly flush out the adhesives on the surface of the cable body and the accumulations inside the float box. The present invention has the advantages of high automation of cleaning and good cleaning effect.

A rigid submarine power cable joint including: an outer casing having a first axial end face and a second axial end face at an opposite axial end of the outer casing relative to the first axial end face, wherein the first axial end face includes a single opening configured to receive a multi-core dynamic submarine power cable, and wherein the second axial end face includes two openings, each configured to receive a respective single core submarine power cable.

This application relates to the field of cable technology, specifically disclosing a surface-floating reflective charging cable for ships and its manufacturing method. By applying the base material of this application, the tensile strength of the cable outer sheath can be significantly improved, making it less prone to tensile fracture and contributing to the stable operation of shore power systems. Furthermore, the addition of fluorescent powder provides the cable with increased visibility, making it more conspicuous at night and on rainy days, helping to prevent snagging by passing ships and port machinery. Moreover, the cable outer sheath is less prone to tensile fracture when snagged by ships, further contributing to the stable operation of shore power systems.

The utility model discloses a high-strength tensile marine cable structure, which belongs to the technical field of cables and comprises cable cores, a waterproof film wrapped outside the cable cores, a shielding layer wrapped outside the waterproof film and an outer sheath layer outside the shielding layer. An inner tensile steel wire is arranged in the middle of the cable core, a tensile filling rope is filled between the outer side of the cable core and the waterproof film, and an inner anti-skid mechanism is arranged between the outer side of the waterproof film and the shielding layer. The tensile strength inside the cable is increased through the inner tensile steel wires among the cables and the tensile filling ropes outside the cable, and the friction force among the layers inside the cable can be increased through the outer anti-skid mechanism composed of the woven mesh layer and the outer tensile steel wires and the inner anti-skid mechanism composed of the gridding cloth and the magnesium carbonate powder. And the condition of relative sliding under the condition of tensile force is avoided, and the layers of the cable are mutually restricted, so that the tensile strength is further improved.

A high-voltage electrical power supply line for the provides a secure and water-proof connection transfer of high-voltage electricity through an inner high-voltage electrical cable between a single point mooring (SPM) buoy and / or a caternary anchor leg mooring (CALM) buoy and an LNG vessel moored to the SPM CALM buoy, with a secured connection on each end of the high-voltage electrical cable, disallowing and prevent current flow through high-voltage electrical cable until a secure and confirmed connection is established between connectors attaching the high-voltage electrical power supply line to the SPM CALM buoy and the LNG vessel.

The utility model provides a high-voltage single-core dynamic submarine cable. The optical cable sequentially comprises a water-blocking copper conductor, a semi-conductive water-blocking binding tape, a conductor shield, an XLPE insulator, an insulation shield, a water-blocking buffer layer, a metal shielding layer, a first non-metal sheath, an optical fiber unit, an optical unit filler, an enhanced wrapping tape, a second non-metal sheath, a first metal wire armor layer, an enhanced wrapping tape and a second metal wire armor layer from inside to outside. And an enhanced wrapping tape and a third non-metal sheath. According to the utility model, the corrugated copper sleeve is used as the metal shielding layer, and the three-layer non-metal sheath is used as the protection layer, so that the outer diameter can be effectively reduced, and a dynamic submarine cable with a higher voltage grade and a larger conductor cross section can be produced, thereby realizing high-voltage and large-capacity power transmission of floating type wind power generation projects in deep and far sea in the future.

The application belongs to the cable technical field, disclose a kind of cable for water conservancy project, including cable body, the cable body is wrapped with annular air bag, the annular air bag outside is fixed and is communicated with inflation pipe, the inflation pipe end is provided with the end cap of inflation pipe snap fit, the cable body is provided with the fixing assembly for fixing annular air bag, the annular air bag is equipped with multiple and about the uniform setting of cable body outer wall.This application, multiple annular air bags cooperate, so that the cable body has played good protection and buffering effect, the cable body has played effective protection effect, and it is favorable to prolong the service life of cable.

The invention discloses a self-induction high-tensile aluminum alloy floating cable and a connector thereof, and relates to the technical field of cables, a cable body is sequentially provided with a foaming TPU sheath, an aramid fiber filler and a foaming TPE inner protection layer from outside to inside, the foaming TPU sheath, the aramid fiber filler and the foaming TPE inner protection layer are combined to form a tensile outer sheath, and the tensile outer sheath is provided with an outer sheath. When the cable body is positioned and fixed, the cable body is firstly inserted along the open end of the slitting box body, and before insertion, the angle of the cable body is adjusted, so that the position of the reserved gap in the cable body corresponds to the position of the slitting knife in a one-to-one manner; the cutting knives cut the tensile outer sheath along the reserved gaps to form a plurality of groups of tensile parts, so that disconnection of the cable body and the electric connecting piece is avoided, meanwhile, the aluminum alloy conductors can be exposed, subsequent electric connection of the aluminum alloy conductors and the electric connecting piece is facilitated, manual cutting is not needed, and operation is convenient.

The invention discloses a memory alloy dynamic cable suitable for a shallow water floating fan, which comprises a body, one end of the body is fixedly connected with a floating fan platform (8) arranged in a shallow water area, the body floats in the shallow water in a plurality of wave shapes, the outer layer of the body comprises an armor layer (1) and an outer sheath layer (2), and the armor layer (1) is fixedly connected with the outer sheath layer (2). A memory alloy layer (3) mainly made of memory alloy is arranged between the armor layer (1) and the outer sheath layer (2), and the memory alloy layer (3) is used for enabling the body to recover a wavy laying state. The invention provides a memory alloy dynamic cable suitable for a shallow water floating fan. The memory alloy dynamic cable suitable for the shallow water floating fan is suitable for building the floating fan in a shallow water area and a middle area between the shallow water and deep water.

The application provides a submarine communication cable, relates to the cable field, and comprises a core and an inner protective layer, a shielding layer and an outer protective layer which are sequentially wrapped from inside to outside, further comprises an elastic layer and a gas delivery assembly, the elastic layer is wrapped outside the outer protective layer, there is a gap between the outer protective layer and the elastic layer, and the gas delivery assembly is located in the gap; the gas delivery assembly comprises a gas delivery pipe, solenoid valves and a bus, the gas delivery pipe is connected with the solenoid valves, and the solenoid valves are arranged at equal intervals along the axial direction of the gas delivery pipe; a plurality of radial partitions are arranged in the gap, the radial partitions are arranged around the outer protective layer, the inner ring of the radial partitions is fixedly connected with the outer side surface of the outer protective layer, and the outer ring is fixedly connected with the inner side surface of the elastic layer; the radial partitions divide the gap into a plurality of annular cavities, the gas delivery pipe penetrates through the radial partitions, and the solenoid valves are located in the annular cavities, respectively; the bus is fixed to the outer surface of the gas delivery pipe, and the solenoid valves are connected with the bus, respectively.

A jacket assembly is provided for attachment to a subsea flexible line for facilitating passive control of movement of the flexible line. The jacket assembly comprises a plurality of jackets. Each jacket comprises a fluid displacing buoyancy element extending longitudinally between a first edge and a second edge and has a circumferential interior surface between the first edge and the second edge, the circumferential interior surface configured to bound a first inner cylindrical volume. The plurality of fluid displacing buoyancy elements comprises a first subset of fluid displacing buoyancy elements and a second subset of fluid displacing buoyancy elements. The first subset of the plurality of fluid displacing buoyancy elements has a first buoyancy value the second subset of the plurality of fluid displacing buoyancy elements has a second buoyancy value different from the first buoyancy value.

The utility model discloses a photovoltaic cable, which comprises a carbon fiber wire positioned in the center, a plurality of copper wires twisted on the carbon fiber wire to form a copper conductor, an insulating layer coated on the surface of the copper conductor, an inner sheath layer coated on the outer surface of the insulating layer, and an outer sheath layer coated on the outer surface of the inner sheath layer, a metal braid layer is arranged between the outer sheath layer and the inner sheath layer, and the metal braid layer is formed by weaving a plurality of metal wires; a plurality of holes are arranged in the outer sheath layer, and the volume of the holes accounts for 40-60% of the volume of the outer sheath layer. According to the photovoltaic cable provided by the utility model, the tensile property of the cable is improved, the cable pair is prevented from being damaged when the cable is dragged, so that the dragging construction of the cable is facilitated, and the layering between the outer sheath layer and the inner sheath layer after long-term use is also avoided.

The invention relates to the technical field of cables, and particularly discloses a high-reliability water-blocking double-core photovoltaic cable for floating on the sea, the cable comprises two cable cores which are distributed in parallel, each cable core comprises a conductor, an insulating layer wrapping the outer side of the conductor and a waterproof layer wrapping the outer side of the insulating layer, the two cable cores which are distributed in parallel are wrapped with a sheath, and the sheath is wrapped with a waterproof layer. The sheath connects the two cable cores along the transverse direction to form an integral double-core photovoltaic cable; and a plurality of steel wires distributed along the longitudinal direction of the sheath are also arranged in the sheath. The sheath is prepared from the following components in parts by weight: 15 to 30 parts of ethylene-vinyl acetate copolymer, 15 to 30 parts of polyethylene, 5 to 20 parts of ethylene-octylene copolymer, 5 to 20 parts of modified basalt, 4 to 10 parts of thermoplastic polyurethane, 2 to 6 parts of compatilizer, 0.5 to 5 parts of hyperbranched polyester, 0.5 to 4 parts of cross-linking agent, 60 to 100 parts of flame retardant and 0.5 to 5 parts of other auxiliaries. The cable has excellent mechanical properties, heat aging resistance and salt spray resistance.

The invention relates to a floating type water photovoltaic dynamic cable and a manufacturing method thereof, and relates to the technical field of cables. The floating type overwater photovoltaic dynamic cable comprises a core body, an isolation sleeve layer, a first armor layer and a first sheath layer, the core body comprises a cable core assembly and optical fiber sensing units, the cable core assembly comprises a plurality of power line cores and elastic filling pieces which are twisted, the optical fiber sensing units are continuously arranged among the power line cores, and the first armor layer is arranged between the power line cores. The optical fiber sensing unit is at least used for detecting the propagation characteristic change of an optical signal in the optical fiber so as to monitor temperature and vibration parameters in real time, and the first sheath layer comprises salt-fog-resistant high-density polyethylene, an anti-ultraviolet auxiliary agent and an anti-biological adhesion auxiliary agent. According to the application, the power wire cores and the elastic filling member are twisted, and the salt-fog-resistant high-density polyethylene, the anti-ultraviolet auxiliary agent and the anti-biological adhesion auxiliary agent are arranged in the first sheath layer, so that the flexibility, the fatigue resistance, the corrosion resistance and the aging resistance are improved.

The invention discloses an optical storage straight flexible cable with a corrosion-resistant effect and a protection structure thereof, and particularly relates to the technical field of optical storage straight flexible, the optical storage straight flexible cable comprises a photovoltaic power generation mechanism, the photovoltaic power generation mechanism comprises an annular floating body pipe floating on the water surface, and a high-elastic film is arranged on the inner ring of the annular floating body pipe; a plurality of photovoltaic panels are uniformly laid on the high-elastic film; an installation ring is concentrically arranged on the annular floating body pipe, the installation ring and the annular floating body pipe are arranged in parallel, a protection mechanism is arranged on the installation ring, and the protection mechanism comprises a plurality of protection sleeves fixedly installed on the installation ring. According to the invention, by arranging the protection structure, when the high-elastic film fluctuates up and down along with waves, the cable between the photovoltaic panel and the mounting ring can be limited in the protection sleeve to swing in a small range, so that the deformation amplitude of the cable is effectively reduced, and the service life of the cable is remarkably prolonged.

The application provides a manufacturing method of an anti-fatigue submarine high-voltage dynamic cable for deep-sea floating wind power, and relates to the technical field of submarine cable manufacturing.The method comprises the following steps: treating oxygen-free copper wire to form a water-blocking copper conductor; coating a semiconductive material on the surface to form a semiconductive conductor shielding layer; coating XLPE cross-linked polyethylene material to form an XLPE cross-linked polyethylene insulation layer; coating a semiconductive material on the surface to form a semiconductive insulation shielding layer; twisting copper wire on the surface of the semiconductive insulation shielding layer to form a copper wire shielding layer, and winding copper tape to form a copper tape shielding layer; extruding an inner layer of high-density polyethylene sheath layer on the surface of the copper tape shielding layer; arranging an optical fiber unit and aramid fiber reinforcing rib on the outer surface of the inner layer of high-density polyethylene sheath layer to form an optical fiber unit and aramid fiber reinforcing rib filling layer; coating high-carbon steel wire to form a double-layer galvanized steel wire armor layer; and extruding an outer layer of high-density polyethylene sheath layer on the surface of the double-layer galvanized steel wire armor layer to form a cable.

The utility model provides a photovoltaic cable with a self-floating water-blocking function, and the cable comprises a plurality of wire cores, insulating layers which wrap the peripheries of the wire cores, a water-blocking layer group which wraps the peripheries of the insulating layers, a buoyancy filling assembly which is disposed between the insulating layers and the water-blocking layer group, and a reinforcing layer group which wraps the peripheries of the water-blocking layers. The buoyancy filling assemblies are made of materials with the buoyancy density ranging from 0.78 g / cm < 3 > to 0.85 g / cm < 3 >, after the buoyancy filling assemblies are filled in the cable, the cable can be laid on the sea surface by means of the buoyancy of the cable, the cable does not need to be arranged on a floating body support, the cable can be directly placed on the sea surface to complete cable routing work, the cable routing difficulty is reduced, and the service life of the cable is prolonged. The cable can be prevented from being directly exposed in the sun, the aging speed of the cable is reduced, the service life of the cable is prolonged, and the cable has the advantages of simple structure, labor cost saving and convenience in popularization and implementation.