CN210777911U - Underwater neutral buoyancy cable - Google Patents

Abstract

The utility model relates to the field of cables, concretely relates to underwater neutral buoyancy cable, including insulating heart yearn, cable core filler, enhancement layer, interior sheath and outer jacket, insulating heart yearn includes first power cord, second power cord, third power cord and fourth power cord, and insulating heart yearn center is copper wire stranded conductor, and the outside parcel has the insulating layer to copper wire stranded conductor is inside to be stranded and has a high tensile fiber, and first power cord and second power cord short pitch transposition back, again with third power cord and fourth power cord short pitch transposition; the outside parcel of insulating heart yearn has the enhancement layer, is equipped with the cable core filler between its clearance, and the enhancement layer is the fibre weaving layer, and the outer parcel of enhancement layer has interior sheath, the embedded electromagnetic signal shielding layer that is equipped with of interior sheath, and the outer parcel of interior sheath has the outer jacket, the utility model provides a cable pliability is good, and intensity is high and have zero buoyancy characteristic.

Description

Underwater neutral buoyancy cable

Technical Field

The utility model relates to a cable field, concretely relates to neutral buoyancy cable under water.

Background

With the more frequent ocean operation, the more and more strict requirements on the cable for the underwater engineering are met, the cable not only has small outer diameter and high tensile strength, but also has zero buoyancy, so that the cable can stay at any position in water, and the resistance of the water during navigation can be reduced; especially in deep water applications, achieving zero buoyancy at high pressures is very difficult.

The underwater robot or underwater equipment control signal cable sinks in seawater due to the fact that the density of the cable is larger than the water density, and therefore operation accuracy of the underwater equipment is seriously affected. The cable is formed by mixing a common signal wire and a power wire, the core wire of the cable is insulated by common PVC or PE, the stranding pitch of the core wire is large, the gaps of the core wires are filled by reticular belts or cotton wires, and the sheath is made of high-density PE or waterproof rubber.

The utility model with application number of CN201621424828.0 and publication number of 20170620 discloses a buoyancy photoelectric composite cable, which comprises a small-density cable and a large-density cable which are connected with each other; the small-density cable is connected with the large-density cable; the power line and the optical fiber spiral armor of the small-density cable are sequentially provided with a cable core filler, a multilayer water-blocking wrapping tape, a force-bearing component layer and a sheath from inside to outside; the power line pair and the optical fiber spiral armor of the large-density cable are sequentially provided with a cable core filler, at least one layer of water-blocking wrapping tape, a woven layer, a bearing component layer and a sheath from inside to outside.

Although the technical scheme makes the weight of the cable light, the bending performance good and has a certain waterproof effect, the strength of the cable is sacrificed, and an improvement space exists.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a neutral buoyancy cable under water mainly solves current cable life weak point under water, and the signal is poor, and is not wear-resisting, does not resist oil, and is not corrosion-resistant, the big problem of cable proportion.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

an underwater neutral buoyancy cable, comprising: the cable comprises an insulating core wire, a cable core filler, a reinforcing layer, an inner protective layer and an outer protective layer, wherein the insulating core wire comprises a first power line, a second power line, a third power line and a fourth power line, a copper wire stranded conductor is arranged in the center of the insulating core wire, an insulating layer is wrapped outside the insulating core wire, a strand of high-tensile fiber is stranded inside the copper wire stranded conductor, and the first power line and the second power line are stranded in short pitch and then stranded with the third power line and the fourth power line in short pitch; the outer portion of the insulating core wire is wrapped with the reinforcing layer, cable core fillers are arranged between gaps of the reinforcing layer, the reinforcing layer is a fiber woven layer, the reinforcing layer is wrapped with the inner protective layer, the inner protective layer is internally embedded with an electromagnetic signal shielding layer, and the outer protective layer is wrapped with the inner protective layer.

Preferably, the insulating layer is made of PE insulating material with tensile strength larger than 20 Mpa.

Preferably, an oxygen-free copper wire is adopted in the copper wire stranded conductor.

Preferably, the inner protective layer is made of a foamed polyurethane material.

Preferably, the outer protective layer is polyether polyurethane.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. high flexibility: and the fine stranded anaerobic thin copper wires are stranded, so that the flexibility and the flexibility of the wire core are ensured.

2. Anti-electromagnetic interference: the twisted core wires are twisted in a short pitch, so that external interference and interference inside the cable are effectively resisted, and the stability of signal transmission is ensured; the electromagnetic signal shielding layer is embedded in the inner protective layer, so that the influence of electromagnetic signals on the underwater machine is reduced.

3. Zero buoyancy property: the foamed polyurethane is adopted, so that the specific gravity of the cable is equivalent to that of seawater, and a zero-buoyancy phenomenon is generated.

4. Seawater resistance: the polyether polyurethane is adopted, so that seawater corrosion and other severe environments can be effectively prevented.

The utility model discloses simple structure, convenient to use, the practical function is outstanding.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a cross-sectional view of the present invention;

the reference numerals are as follows:

1. an outer jacket; 2. an inner protective layer; 3. a reinforcing layer; 4. a cable core filling layer; 5. an insulating layer; 6. Copper wire stranded conductors; A. a first power line; B. a second power supply line; C. a third power supply line; d. And a fourth power line.

Detailed Description

In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific situation.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein.

The underwater neutral buoyancy cable shown in fig. 1 comprises an insulating core wire, a cable core filler 4, a reinforcing layer 3, an inner protective layer 2 and an outer protective layer 1, wherein the insulating core wire comprises a first power wire A, a second power wire B, a third power wire C and a fourth power wire D, a copper wire stranded conductor 6 is arranged in the center of the insulating core wire, an insulating layer 5 is wrapped outside the insulating core wire, a strand of high-tensile fiber is stranded inside the copper wire stranded conductor 6, the tensile property of the conductor is effectively enhanced, and the first power wire A and the second power wire B are stranded in a short pitch manner and then are stranded with the third power wire C and the fourth power wire D in a short pitch manner, so that the cable has strong external electromagnetic interference resistance; the outside parcel of insulating heart yearn has enhancement layer 3, is equipped with cable core filler 4 between its clearance, and enhancement layer 3 is the fibre weaving layer, and 3 outer parcels in the enhancement layer have interior sheath 2, and the embedded electromagnetic signal shielding layer that is equipped with of interior sheath 2, and the outer parcel in interior sheath 2 has outer jacket 1.

In the embodiment, the insulating layer 5 is made of an insulating material with the tensile strength of more than 20 Mpa; the copper wire stranded conductor 6 is made of an oxygen-free copper wire. The cable core filler 4 and the reinforcing layer 3 are made of high-strength tensile fibers, can bear 100kg of tensile force to the maximum extent, and are used for enhancing the tensile property and the torsion resistance of the cable. The inner protection layer 2 is made of foamed polyurethane materials, has the characteristics of strong flexibility, high elasticity and compact and uniform foam holes, has the specific gravity of only 0.4-0.6g/cm3, can effectively reduce the specific gravity of the cable, enables the overall specific gravity of the cable to be 1.0g/cm3, reaches the degree equivalent to the specific gravity of seawater, enables the cable to stay at any position in water and has the function of zero buoyancy; the electromagnetic signal shielding layer is composed of a conductive fiber mesh or a conductive fiber felt, can play a certain shielding role on electromagnetic signals, and reduces the influence of the electromagnetic signals on underwater machines; the outer protective layer 1 is made of polyether polyurethane which is wear-resistant, oil-resistant, hydrolysis-resistant, microbial, oil-resistant, coolant-resistant, radiation-resistant and ozone-resistant, so that the cable can adapt to complex and severe working conditions in seawater.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. An underwater neutral buoyancy cable, comprising: the cable comprises an insulating core wire, a cable core filler (4), a reinforcing layer (3), an inner protective layer (2) and an outer protective layer (1), wherein the insulating core wire comprises a first power line (A), a second power line (B), a third power line (C) and a fourth power line (D), a copper wire stranded conductor (6) is arranged at the center of the insulating core wire, an insulating layer (5) is wrapped outside the insulating core wire, a strand of high-tensile fiber is stranded inside the copper wire stranded conductor (6), and the first power line (A) and the second power line (B) are twisted in a short-pitch mode and then twisted in a short-pitch mode with the third power line (C) and the fourth power line (D); the outside parcel of insulating heart yearn has enhancement layer (3), is equipped with between its clearance cable core filler (4), enhancement layer (3) are the fibre weaving layer, the outer parcel of enhancement layer (3) has interior sheath (2), the embedded electromagnetic signal shielding layer that is equipped with of interior sheath (2), the outer parcel of interior sheath (2) has outer sheath (1).

2. The underwater neutral buoyancy cable of claim 1, wherein: the insulating layer (5) is made of PE insulating material with tensile strength larger than 20 Mpa.

3. The underwater neutral buoyancy cable of claim 1, wherein: and the copper wire stranded conductor (6) is made of an oxygen-free copper wire.

4. The underwater neutral buoyancy cable of claim 1, wherein: the inner protective layer (2) is made of a foamed polyurethane material.

5. The underwater neutral buoyancy cable of claim 1, wherein: the outer protective layer (1) is made of polyether polyurethane.

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