Water zero-buoyancy floating cable

Abstract

The invention relates to the technical field of wire rods, and discloses an overwater zero-buoyancy floating cable, which comprises a first guide connection unit, a second guide connection unit and two cable wires, the cable wires are formed by weaving cotton threads and stretch yarns, the outer sides of the first guide connection unit, the second guide connection unit and the two cable wires are coated with a belting layer, and the belting layer is arranged on the outer side of the first guide connection unit and the second guide connection unit. The outer side of the belting layer is coated with a layer of inner sheath, and the outer side of the inner sheath is coated with a layer of outer sheath. Power supply and signal transmission are achieved through the arrangement of the first guide connection unit and the second guide connection unit, the inner sheath is made of TEP materials, the outer sheath is made of Foam TEP materials, the inner sheath and the outer sheath both have good flexibility, abrasion resistance, oil resistance, acid and alkali resistance and excellent waterproof performance and anti-aging performance, the first guide connection unit and the second guide connection unit can be protected, and the service life of the cable is prolonged. And meanwhile, the outer sheath has an excellent floating effect.

Description

Technical Field

[0001] The invention relates to the technical field of wire materials, and in particular to an above-water zero-buoyancy floating cable. Background Art

[0002] In the existing technology, marine exploration robots, underwater ROV drones, remote-controlled submersibles, underwater cameras, underwater construction, underwater search and rescue robots, pipeline detection robots, submersible pumps and various underwater working electrical equipment need to be connected with shore-based equipment through wires; providing signal transmission, power supply, equipment control system, etc. from underwater to surface. At the same time, it needs to meet the properties of flexibility, wear resistance, oil resistance, acid and alkali resistance, tensile strength, excellent waterproof performance and anti-aging performance, and the cable needs to be able to float on the water.

[0003] To this end, a floating cable with zero buoyancy on water is being developed; and the cable can be used in both freshwater and seawater environments. Summary of the invention

[0004] The purpose of the present invention is to provide an above-water zero-buoyancy floating cable, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an above-water zero-buoyancy floating cable, comprising a first conducting unit, a second conducting unit and two cables, wherein the cables are woven from cotton thread and elastic thread, the first conducting unit, the second conducting unit and the two cables are coated with a tape layer on the outside, the tape layer is coated with an inner sheath on the outside, and the inner sheath is coated with an outer sheath on the outside.

[0006] Preferably, the first conducting unit comprises a first insulating layer and two tinned copper wires 1 coated in the first insulating layer, wherein the diameter of the tinned copper wires 1 is between 0.63 mm and 0.66 mm.

[0007] Preferably, the first insulating layer is made of PVC, the thickness of the first insulating layer is between 0.20 mm and 0.30 mm, and the diameter of the first insulating layer is between 1.20 mm and 1.40 mm.

[0008] Preferably, the second conducting unit comprises a second insulating layer and two tinned copper wires 2 coated in the second insulating layer, and the diameter of the tinned copper wires 2 is between 0.318 mm and 0.35 mm.

[0009] Preferably, the second conductive layer is made of HDPE, the thickness of the second insulating layer is 0.18 mm-0.28 mm, and the outer diameter of the second insulating layer is between 0.80 mm and 1.00 mm.

[0010] Preferably, the wrapping layer is tissue paper.

[0011] Preferably, the inner sheath is made of TPE material, the thickness of the inner sheath is between 1.20 mm and 1.60 mm, and the outer diameter of the inner sheath is 6.70 mm and 7.30 mm.

[0012] Preferably, the outer sheath is made of Foam TPE material, the thickness of the outer sheath is between 2.20 mm and 3.40 mm, and the outer diameter of the outer sheath is between 12.50 mm and 13.50 mm.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention realizes power supply and signal transmission respectively by setting a first conducting unit and a second conducting unit. The inner sheath is made of TEP material and the outer sheath is made of Foam TEP material. Both have good flexibility, wear resistance, oil resistance, acid and alkali resistance, excellent waterproof performance and anti-aging performance, can protect the first conducting unit and the second conducting unit, and the outer sheath has an excellent floating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] See also Figure 1An embodiment of the present invention is as follows: an above-water zero-buoyancy floating cable comprises an outer sheath 1, an inner sheath 2 and a tape layer 3 which are sequentially coated from the outside to the inside, and the tape layer 3 coats a first conducting unit 10, a second conducting unit 20 and two cables 4, wherein the cables 4 are woven from cotton thread and elastic thread, and the structure can increase the tensile strength and elasticity of the entire cable, wherein the inner sheath 2 is made of TPE material, and the outer sheath 1 is made of Foam TPE material, both of which have good flexibility, wear resistance, oil resistance, acid and alkali resistance, excellent waterproof performance and anti-aging performance, and can protect the first conducting unit 10 and the second conducting unit 20, and the outer sheath 1 has an excellent floating effect, which can make the entire cable float on the water.

[0019] The first conducting unit 10 includes a first insulating layer 11 and two tinned copper wires 12 wrapped in the first insulating layer 11, wherein the diameter of the tinned copper wire 12 is between 0.63 mm and 0.66 mm; further, the tinned copper wire 12 uses an AWG wire gauge (American Wire Gauge, which is a standardized system for indicating the diameter, cross-sectional area and current carrying capacity of a wire, and is widely used in marking the specifications of wires, cables and other conductors in North America), which is AWG22, with a diameter of 0.644 mm and a cross-sectional area of ​​0.326 mm. 2 .

[0020] PVC material also has the following advantages:

[0021] Corrosion resistance: PVC material has good corrosion resistance, which can prevent the first conducting unit 10 from being corroded by corrosive substances such as water, oil, acid, etc., so that it has a longer service life;

[0022] Wear resistance: PVC material has good wear resistance, which can make the first conductive unit 10 resist the impact of external forces and have a longer service life;

[0023] Heat resistance: PVC material has good heat resistance, which enables the first conductive unit 10 to withstand high temperature environments and has a longer service life;

[0024] Impact resistance: PVC material has good impact resistance, which can make the first conducting unit 10 resist the impact of external force and make it have a longer service life;

[0025] UV resistance: PVC material has good UV resistance, which can make the first conducting unit 10 effectively resist the erosion of ultraviolet rays and make it have a longer service life;

[0026] Weather resistance: PVC material has good weather resistance, which can enable the first conducting unit 10 to withstand adverse weather conditions and have a longer service life;

[0027] Processability: PVC material has good processability, which allows the first conductive unit 10 to be flexibly processed in various ways, making it have a higher use value;

[0028] Cost advantage: PVC is a low-cost plastic, so the first conducting unit 10 can reduce the production cost of the product;

[0029] Durability: PVC material has good durability, so that the first conducting unit 10 can withstand most chemicals and corrosive substances;

[0030] Easy to process: PVC materials can be easily processed into various shapes and sizes through injection molding, extrusion, blow molding, etc.

[0031] Light weight: PVC material has low density, light weight, and low thermal conductivity. It is an excellent insulating material, which further reduces the weight of the overall wire and improves its floating performance;

[0032] Recyclable: PVC material is recyclable, so there is no need to worry about it causing pollution to the environment.

[0033] The thickness of the first insulating layer 11 is between 0.20 mm and 0.30 mm, the minimum thickness is 0.20 mm, the average thickness is 0.25 mm, and the diameter of the first insulating layer 11 is between 1.20 mm and 1.40 mm.

[0034] The second conducting unit 20 includes a second insulating layer 21 and two tinned copper wires 22 wrapped in the second insulating layer 21. The diameter of the tinned copper wires 22 is between 0.318 mm and 0.35 mm. Furthermore, the tinned copper wire 12 also uses an AWG wire gauge of AWG28, with a diameter of 0.321 mm and a cross-sectional area of ​​0.081 mm. 2 .

[0035] HDPE material has the following advantages:

[0036] Good chemical properties: cold and heat resistance, stable chemical reaction, even if mixed acid, alkali, solvent corrosion can make the second connection unit 20 remain stable;

[0037] Higher rigidity and toughness: the second conducting unit 20 has excellent wear resistance and electrical insulation;

[0038] Environmentally friendly and recyclable: HDPE itself has low water absorption and is also widely used as a surface protective film for cables and wires. It is an environmentally friendly and recyclable product among industrial products. After recycling, it can be dissolved and reused to produce new products;

[0039] Good low-temperature impact resistance: The low-temperature brittle temperature of polyethylene is extremely low, so that the second connection unit 20 can be safely used in the temperature range of -60-60℃; Good stress cracking resistance: HDPE has low notch sensitivity, high shear strength and excellent scratch resistance, and its environmental stress cracking resistance is also very outstanding;

[0040] Good chemical corrosion resistance: the second conducting unit 20 can resist corrosion from a variety of chemical media, and the chemical substances in the water will not cause any degradation to the second conducting unit 20;

[0041] Aging resistance, long service life: Polyethylene pipes containing 2-2.5% evenly distributed carbon black can be stored or used outdoors for 50 years without being damaged by ultraviolet radiation

[0042] The thickness of the second insulating layer 21 is 0.18 mm-0.28 mm, the minimum thickness is 0.18 mm, the average thickness is 0.23 mm, and the outer diameter of the second insulating layer is between 0.80 mm and 1.00 mm.

[0043] The wrapping tape layer 3 is cotton paper, which can further enhance the waterproof effect of the cable.

[0044] The thickness of the inner sheath 2 is between 1.20 mm and 1.60 mm, and the outer diameter of the inner sheath is between 6.70 mm and 7.30 mm.

[0045] The thickness of the outer sheath 1 is between 2.20 mm and 3.40 mm, and the outer diameter of the outer sheath is between 12.50 mm and 13.50 mm.

[0046] The inner sheath 2 is made of TPE, a thermoplastic elastomer, which has both the elasticity of rubber and the plasticity of plastic. It can be repeatedly processed and formed by heating, and has the advantages of high strength, wear resistance and chemical corrosion resistance. The outer sheath 1 is made of Foam TPE, which is made through physical or chemical foaming process on the basis of TEP. It has lightweight and good cushioning properties, making it lighter and softer, so it has good buoyancy, allowing the cable to float on the water as a whole, but its mechanical strength is relatively low. The high strength performance of the inner sheath 2 can be used to improve the overall tensile resistance of the cable.

[0047] At 20 degrees Celsius, the conductor resistance of the first conducting unit 10 is less than or equal to 59.4Ω / km; the conductor resistance of the second conducting unit 20 is less than or equal to 239Ω / km; the insulation impedance of the cable can reach 10MΩ*km; the wire can withstand a tensile force of more than 12KG.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A floating cable with zero buoyancy on water, characterized in that: It includes a first conducting unit, a second conducting unit and two cables, wherein the cables are woven from cotton thread and elastic thread, the first conducting unit, the second conducting unit and the two cables are coated with a tape layer on the outside, the tape layer is coated with an inner sheath on the outside, and the inner sheath is coated with an outer sheath on the outside.

2. The zero-buoyancy floating cable according to claim 1, characterized in that: The first conducting unit includes a first insulating layer and two tinned copper wires 1 coated in the first insulating layer, wherein the diameter of the tinned copper wires 1 is between 0.63 mm and 0.66 mm.

3. The zero-buoyancy floating cable according to claim 2, characterized in that: The first insulating layer is made of PVC, the thickness of the first insulating layer is between 0.20 mm and 0.30 mm, and the diameter of the first insulating layer is between 1.20 mm and 1.40 mm.

4. The above-water zero-buoyancy floating cable according to claim 1, characterized in that: The second conducting unit includes a second insulating layer and two tinned copper wires 2 coated in the second insulating layer, and the diameter of the tinned copper wires 2 is between 0.318 mm and 0.35 mm.

5. An above-water zero-buoyancy floating cable according to claim 4, characterized in that: The second conductive layer is made of HDPE, the thickness of the second insulating layer is 0.18 mm-0.28 mm, and the outer diameter of the second insulating layer is between 0.80 mm and 1.00 mm.

6. The above-water zero-buoyancy floating cable according to claim 1, characterized in that: The wrapping layer is tissue paper.

7. The above-water zero-buoyancy floating cable according to claim 1, characterized in that: The inner sheath is made of TPE material, the thickness of the inner sheath is between 1.20mm and 1.60mm, and the outer diameter of the inner sheath is between 6.70mm and 7.30mm.

8. The above-water zero-buoyancy floating cable according to claim 1, characterized in that: The outer sheath is made of FoamTPE material, the thickness of the outer sheath is between 2.20mm and 3.40mm, and the outer diameter of the outer sheath is between 12.50mm and 13.50mm.

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