CN220121524U - Floating cable for water surface operation - Google Patents

Abstract

The utility model relates to a floating cable for water surface operation, which comprises two power line subunits and a communication cable subunit; the outer protective layer sequentially comprises an inner protective layer, a shielding stable layer and an outer protective sleeve from inside to outside; the communication cable subunit comprises 4 pairs of wire core groups, each wire core group consists of two single wire cores, each single wire core is made by extruding a polypropylene insulating layer outside an inner core copper wire, and an aluminum foil armor shielding layer and a communication cable sheath are sequentially wrapped outside the cable formed by the 4 pairs of wire cores; total cable water-blocking yarns are filled between the inner cable core and the outer protective layer, and conductive plastic particles are filled between the total cable water-blocking yarns. When the cable is implemented, the communication cable subunit has the advantages of larger volume, lighter dead weight, convenience in cable floating, electromagnetic shielding effect, corrosion resistance, hydrolysis resistance and low temperature resistance, convenience in operation of the cable in water, high flexibility and high tensile strength, and capability of effectively preventing video interference.

Description

Floating cable for water surface operation

Technical Field

The utility model relates to the technical field of cables, in particular to a floating cable for water surface operation, and especially relates to a comprehensive floating cable for water surface operation.

Background

At present, with the increasing popularization of underwater operation, underwater equipment such as underwater robots, underwater salvage equipment, underwater detection, underwater construction, underwater photography, underwater hydraulic cutters and the like are widely applied, and power transmission, signal transmission or signal control connecting cables of the underwater equipment are necessary guarantees for guaranteeing the safety of the underwater operation. The finished cable is placed in water after being manufactured, water cannot be absorbed, and the finished cable is required to be exposed out of the water surface by at least one tenth.

For example, in the prior art, the application number is CN202222269416.6, and the name is an optical communication floating cable, and such a technical scheme is described that an optical communication floating cable comprises two tightly-packaged optical fibers, a reinforcing layer arranged on the outer sides of the two tightly-packaged optical fibers, two reinforcing cores arranged on the inner sides of the reinforcing layers and a sheath arranged on the outer sides of the reinforcing layers, one side of each reinforcing core is abutted against the inner wall of the reinforcing layer, and the other side of each reinforcing core is abutted against the two tightly-packaged optical fibers respectively.

Therefore, there is an urgent need in the market for a floating cable for water surface operation, which has the effects of acid resistance, alkali resistance, hydrolysis resistance and wear resistance, has high flexibility and high tensile strength, can effectively prevent video interference, and ensures that information feedback is smooth.

Disclosure of Invention

The utility model aims to provide an improved floating cable for water surface operation, which is easy to float by improving the cable structure, is corrosion-resistant, hydrolysis-resistant and wear-resistant, and has good shielding and anti-interference effects.

In order to achieve the above object, the technical scheme of the present utility model is as follows: a floating cable for surface operations, characterized in that: the floating cable for water surface operation comprises an inner cable core and an outer protective layer wrapping the inner cable core, wherein the inner cable core comprises two power line subunits and one communication cable subunit; the outer protective layer sequentially comprises an inner protective layer, a shielding stable layer and an outer protective sleeve from inside to outside; the communication cable subunit comprises 4 pairs of wire core groups, each wire core group consists of two single wire cores, each single wire core is made of an inner core copper wire with the outer diameter of 0.52+/-0.02 mm by extruding a polypropylene insulating layer, and the aluminum foil armor shielding layer and the communication cable sheath are sequentially wrapped outside the 4 pairs of wire core groups after the wires are formed into a cable; total cable water-blocking yarns are filled between the inner cable core and the outer protective layer, and conductive plastic particles are filled between the total cable water-blocking yarns.

Preferably, the shielding stabilizing layer comprises two layers of aramid yarn braiding layers, a copper wire braiding layer is arranged between the two layers of aramid yarn braiding layers, the density of the copper wire braiding layer is 70-80%, and a graphite coating is arranged on the surface of the aramid yarn braiding layer.

Further, the copper wire braiding layer is formed by braiding tinned copper wires, and the monofilament outer diameter of the tinned copper wires is 0.12-0.13mm.

Further, the inner protective layer is formed by extruding silane ethylene propylene crosslinked insulating material, and the thickness is 0.75-0.8mm.

Further, the conductive plastic particles are hollow cylindrical conductive plastic particles or hollow circular conductive plastic particles.

Further, the outer sheath comprises an inner sheath and an outer sheath, a layer of expansion water stop strip is arranged between the inner sheath and the outer sheath, and the thickness ratio of the inner sheath to the expansion water stop strip to the outer sheath is 1:2:2; the inner sheath and the outer sheath are made of thermoplastic foaming elastomer.

Compared with the prior art, the technical scheme of the utility model comprises a plurality of improvements in detail besides the improvement of the whole technical scheme, and particularly has the following beneficial effects:

1. the floating cable for water surface operation comprises an internal power line subunit and a communication cable subunit, wherein the outside of the floating cable comprises a floating outer protective layer, the floating outer protective layer is sequentially provided with an inner protective layer, a shielding stable layer and an outer protective sleeve from inside to outside, the finished cable does not absorb water, and meanwhile, the cable has light specific gravity, can float on the water surface and has the functions of corrosion resistance, low temperature resistance, wear resistance and the like;

2. in the technical scheme of the utility model, the shielding stabilizing layer comprises two layers of aramid yarn braiding layers, and a copper wire braiding layer is arranged between the two layers of aramid yarn braiding layers, so that electromagnetic interference can be effectively prevented, and the shielding stabilizing layer has high flexibility and high tensile resistance;

4. the utility model has simple process steps, lower cost, improved working efficiency, light specific weight, good performance and strong corrosion and hydrolysis resistance of the manufactured cable, and is suitable for operation in water.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of a communication cable subunit of the present utility model.

Reference numerals:

a communication cable subunit 1, a power line subunit 2, a total cable water blocking tape 3, a total cable water blocking yarn 4, an inner protective layer 5, a shielding and stabilizing layer 6, an outer protective sleeve 7 and conductive plastic particles 8;

11 core groups, 12 inner core copper wires, 13 polypropylene insulation, 14 aluminum foil armor shielding layers, 15 communication cable jackets, 16 single cores, 17 communication cable water-blocking yarns and 18 communication cable water-blocking belts.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model provides a floating cable for surface operations, see in particular fig. 1, which differs from the prior art in that: the floating cable for water surface operation comprises an inner cable core and an outer protective layer wrapping the inner cable core, wherein the inner cable core comprises two power line subunits 2 and one communication cable subunit 1; the outer protective layer comprises an inner protective layer 5, a shielding stable layer 6 and an outer protective sleeve 7 from inside to outside in sequence; the communication cable subunit comprises 4 pairs of wire core groups 11, each wire core group consists of two single wire cores 16, each single wire core is made by extruding a polypropylene insulating layer 13 outside an inner core copper wire 12 with the outer diameter of 0.52+/-0.02 mm, and an aluminum foil armor shielding layer 14 and a communication cable sheath 15 are sequentially wrapped outside the wires after the wires are formed into the cable; total cable water-blocking yarns 4 are filled between the inner cable core and the outer protective layer, and conductive plastic particles 8 are filled between the total cable water-blocking yarns 4.

When the cable is implemented, the communication cable subunit has larger volume, lighter dead weight and convenience for cable floatation, the outer protective layer sequentially comprises the inner protective layer 5, the shielding stable layer 6 and the outer protective layer 7 from inside to outside, and the outer protective layer has the electromagnetic shielding effect, is corrosion-resistant, hydrolysis-resistant and low-temperature-resistant, is convenient for the operation and use of the cable in water, and ensures that the specific gravity of the cable is controlled to be 0.92-0.95g/cm ³ And enabling the cable to be exposed to at least 1/10 of the volume of the water surface.

Example 1

In this embodiment, the floating cable for water surface operation includes an inner cable core and an outer sheath wrapped outside the inner cable core, the inner cable core includes two power line subunits 2 and one communication cable subunit 1; the outer protective layer comprises an inner protective layer 5, a shielding stable layer 6 and an outer protective sleeve 7 from inside to outside in sequence; the communication cable subunit comprises 4 pairs of wire core groups 11, each wire core group consists of two single wire cores 16, each single wire core is made by extruding a polypropylene insulating layer 13 outside an inner core copper wire 12 with the outer diameter of 0.52+/-0.02 mm, and an aluminum foil armor shielding layer 14 and a communication cable sheath 15 are sequentially wrapped outside the wires after the wires are formed into the cable; total cable water-blocking yarns 4 are filled between the inner cable core and the outer protective layer, and conductive plastic particles 8 are filled between the total cable water-blocking yarns 4.

In practice, the communication cable water-blocking yarns 17 are filled between the 4 pairs of cores, and simultaneously the 1-layer communication cable water-blocking tape 18 is used for wrapping and tightening, and the thickness of the communication cable water-blocking tape is 0.25mm.

The polypropylene insulating layer 13 has better electrical property and heat resistance, hardly absorbs water, has insulating property not affected by humidity, has higher dielectric coefficient, high breakdown voltage, arc resistance and excellent high-frequency insulating property, and is particularly suitable for insulating signal transmission cables. Meanwhile, the specific gravity is relatively light and is 0.895-0.915g/cm ³ . The communication cable can be used as a signal control cable for transmitting control signals; and can also be used for network connection lines and transmission network signals.

The shielding stabilization layer 6 comprises two layers of aramid yarn braiding layers, a copper wire braiding layer is arranged between the two layers of aramid yarn braiding layers, the density of the copper wire braiding layer is 70-80%, and a graphite coating is arranged on the surface of the aramid yarn braiding layer. The aramid yarn plays a role in tensile strength, and has the special properties of small specific gravity, very high tensile modulus, high breaking strength, low breaking elongation and the like; at higher temperatures, the inherent stability, very low shrinkage, lower creep and very high glass transition temperature are maintained, and in addition, the material has higher corrosion resistance, stronger chemical resistance and is a superior reinforcing unit material.

Specifically, the copper wire braiding layer is formed by braiding tinned copper wires, and the monofilament outer diameter of each tinned copper wire is 0.12-0.13mm. The inner protective layer is formed by extruding silane ethylene propylene crosslinked insulating material, and the thickness is 0.75-0.8mm. The conductive plastic particles are hollow cylindrical conductive plastic particles or hollow round conductive plastic particles. The conductive plastic particles not only can play a good role in electromagnetic shielding, but also can increase the integral buoyancy of the cable, and ensure that the cable floats on the water surface. The conductive plastic particles can be made of a poly-Siro conductive material (carbon fiber reinforced composite PEEKIC10J, PEEKIC J).

The outer sheath comprises an inner sheath and an outer sheath, an expansion water stop strip is arranged between the inner sheath and the outer sheath, and the thickness ratio of the inner sheath to the expansion water stop strip to the outer sheath is 1:2:2; the inner sheath and the outer sheath are made of thermoplastic foaming elastomer, when the cable is in use, once the outer sheath is broken or defective, and the like, and water seepage and the like occur, the expansion water stop bar can be rapidly expanded to block gaps or gaps, so that the inside of the cable is prevented from being corroded, meanwhile, the buoyancy of the cable can be ensured due to the expansion of the volume, the cable is helped to continuously float on the water surface, the effectiveness of work is guaranteed, and the service life of the cable is prolonged.

The cable has the following advantages:

1. the finished cable is not absorbed in water, and the specific gravity of the cable is 0.92-0.92g/cm ³ And floats on the water surface.

2. The floating cable for water surface operation has the advantages of oil resistance, acid and alkali resistance, hydrolysis resistance, low temperature resistance, wear resistance, microorganism resistance and mould resistance.

3. The robot cable for detection has the advantages of high flexibility, high tensile strength, bearing stress and the like, and the shielding layer effectively prevents video interference, so that information feedback is clear, and the robot cable for detection has good flexibility.

4. Environmental protection type: no heavy metal, no toxicity, no smell, and no influence on human body and environment.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described above. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (6)

1. A floating cable for surface operations, characterized in that: the floating cable for water surface operation comprises an inner cable core and an outer protective layer wrapping the inner cable core, wherein the inner cable core comprises two power line subunits and one communication cable subunit; the outer protective layer sequentially comprises an inner protective layer, a shielding stable layer and an outer protective sleeve from inside to outside; the communication cable subunit comprises 4 pairs of wire core groups, each wire core group consists of two single wire cores, each single wire core is made of an inner core copper wire with the outer diameter of 0.52+/-0.02 mm by extruding a polypropylene insulating layer, and the aluminum foil armor shielding layer and the communication cable sheath are sequentially wrapped outside the 4 pairs of wire core groups after the wires are formed into a cable; total cable water-blocking yarns are filled between the inner cable core and the outer protective layer, and conductive plastic particles are filled between the total cable water-blocking yarns.

2. A floating cable for surface operations according to claim 1, wherein: the shielding and stabilizing layer comprises two layers of aramid yarn braiding layers, a copper wire braiding layer is arranged between the two layers of aramid yarn braiding layers, the density of the copper wire braiding layer is 70-80%, and a graphite coating is arranged on the surface of the aramid yarn braiding layer.

3. A floating cable for surface operations according to claim 2, wherein: the copper wire braiding layer is formed by braiding tinned copper wires, and the outer diameter of monofilaments of the tinned copper wires is 0.12-0.13mm.

4. A floating cable for surface operations according to claim 1, wherein: the inner protective layer is formed by extruding silane ethylene propylene crosslinked insulating material, and the thickness is 0.75-0.8mm.

5. A floating cable for surface operations according to claim 1, wherein: the conductive plastic particles are hollow cylindrical conductive plastic particles or hollow round conductive plastic particles.

6. A floating cable for surface operations according to claim 1, wherein: the outer sheath comprises an inner sheath and an outer sheath, an expansion water stop strip is arranged between the inner sheath and the outer sheath, and the thickness ratio of the inner sheath to the expansion water stop strip to the outer sheath is 1:2:2; the inner sheath and the outer sheath are made of thermoplastic foaming elastomer.