CN215813474U

CN215813474U - 8-shaped self-supporting optical cable

Info

Publication number: CN215813474U
Application number: CN202121717304.1U
Authority: CN
Inventors: 陈桥; 赖厦丰; 李雪文; 赖标铃; 戴森华
Original assignee: Lifu Fujian Photoelectric Group Co ltd
Current assignee: Lifu Fujian Photoelectric Group Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-11
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses an 8-shaped self-supporting optical cable which comprises a metal stranded wire, a cable core and an 8-shaped sheath, wherein the metal stranded wire and the cable core are respectively arranged in inner cavities at the upper end and the lower end of the 8-shaped sheath, the cable core comprises optical fiber units, loose tubes, fiber paste, a cable core filling body, a water blocking layer and an armor layer, a plurality of optical fiber units are arranged at the center of the loose tubes, the fiber paste is filled in the loose tubes, the water blocking layer and the armor layer are arranged on the periphery of the loose tubes from inside to outside, and the cable core filling body is filled between the loose tubes and the water blocking layer. The waterproof structure sequentially adopts the four-stage waterproof structure of the fiber paste, the loose sleeve, the cable core filling body and the waterproof layer from inside to outside, greatly enhances the waterproof capability of the product, can be laid outdoors, and is particularly suitable for being used in rainy seasons in the south.

Description

8-shaped self-supporting optical cable

Technical Field

The utility model relates to the technical field of optical transmission systems, in particular to an 8-shaped self-supporting optical cable.

Background

Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic outer skin. The 8-shaped self-supporting optical cable is formed by stranding a plurality of sleeves containing optical fibers into a round cable core and integrating the cable core and a steel wire stranded wire into an 8-shaped sheath. The self-supporting optical cable is structurally characterized in that the optical fiber contained in the optical cable is large in number.

8 style of calligraphy self-supporting optical cable mainly uses in the scene of laying outdoors, because the optical cable directly exposes in the air, long-time wind blows the sun, and the outer jacket takes place ageing easily, behind the rainfall, especially south rainy season, inside the rainwater permeates the optical cable easily, has influenced the reliability and the life of product. The development of the optical cable which can be laid outdoors and in a rainwater environment is a powerful guarantee for improving the performance of products. In view of the above, the present inventors have studied and designed an 8-shaped self-supporting optical cable.

SUMMERY OF THE UTILITY MODEL

The purpose of the disclosure is to provide an 8-shaped self-supporting optical cable, and the waterproof purpose is realized by arranging a waterproof layer and a filling ointment on the periphery of an optical fiber unit, so that the service life of the product is prolonged, and the reliability of the product for transmitting data outdoors and in a rainwater environment is improved.

The utility model provides a 8 style of calligraphy self-supporting optical cable, including metal strand wires, cable core and 8 style of calligraphy sheath, metal strand wires reach the cable core sets up respectively in the upper and lower both ends inner chamber of 8 style of calligraphy sheath, the cable core includes optical fiber unit, loose sleeve pipe, fine cream, cable core obturator, water blocking layer and armor, and a plurality of quantity of optical fiber unit sets up loose sheathed tube center, fine cream is filled in the loose sheathed tube, water blocking layer reaches the armor sets up from inside to outside in a plurality of loose sheathed tube periphery, cable core obturator is filled loose sheathed tube reaches between the water blocking layer. The waterproof structure sequentially adopts the four-stage waterproof structure of the fiber paste, the loose sleeve, the cable core filling body and the waterproof layer from inside to outside, greatly enhances the waterproof capability of the product, can be laid outdoors, and is particularly suitable for being used in rainy seasons in the south.

According to at least one embodiment of the present disclosure, the water-blocking layer is one or more layers of a polyester non-woven fabric composite polymer absorption resin layer. The present disclosure may provide one or more water-resistant layers depending on the particular circumstances of the installation environment to provide water protection at different levels of strength.

According to at least one embodiment of the present disclosure, the optical cable further includes a filler rope, and a number of the filler rope layers are stranded inside the loose tube.

According to at least one embodiment of the present disclosure, a plurality of optical fiber units are spaced apart from each other such that the optical fiber units have an allowance space when being stretched or retracted.

According to at least one embodiment of the disclosure, the bottom of the 8-shaped sheath is provided with the water guide strip, the cross section of the water guide strip is of an inverted triangular structure, water drops gathered at the bottom of the optical cable after rainfall can drip from the bottom of the optical cable through the water guide strip, and the gathering of the water drops at the bottom of the optical cable is effectively avoided.

According to at least one embodiment of the present disclosure, the optical cable further includes an aluminum foil longitudinal wrapping tape, and the aluminum foil longitudinal wrapping tape is arranged between the water-blocking layer and the armor layer, and has the functions of moisture prevention, shielding and armor.

According to at least one embodiment of the present disclosure, the number of the optical fiber units is 4 to 144. The structure of the armor layer provides the protection function against external force, so that the core loading capacity in the optical cable is larger.

According to at least one embodiment of the present disclosure, the optical cable further includes an opening cable, the opening cable being disposed between the water blocking layer and an armor layer. The cable rope that opens that this disclosure set up can be so that operating personnel more quick when peeling off this disclosure optical cable, and is simple and convenient.

According to at least one embodiment of the present disclosure, air bubbles are distributed inside the 8-shaped sheath. This openly adopts the bubble of distribution to be favorable to alleviateing the holistic weight of optical cable, alleviates self weight when being convenient for lay.

According to at least one embodiment of the present disclosure, the outer surface of the 8-shaped sheath is provided with a hydrophobic layer, rainwater cannot be retained on the outer surface of the sheath through the hydrophobic layer, and raindrops slide down from top to bottom along the outer surface of the sheath under the action of gravity.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of a 8-shaped self-supporting optical cable according to the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the present disclosure discloses an 8-shaped self-supporting optical cable, which includes a steel wire strand 1, a cable core 2 and an 8-shaped sheath 3, the steel wire strand 1 and the cable core 2 are respectively disposed in inner cavities at upper and lower ends of the 8-shaped sheath 3, the cable core 2 includes an optical fiber unit 21, a loose tube 22, a water-blocking fiber ointment 23, a cable core filler 24, a water-blocking layer 25 and an armor layer 26, 12 optical fiber units are disposed in the center of the loose tube 22, of course, the number of the optical fiber units can be adjusted according to actual needs to be 4-144, the water-blocking fiber ointment 23 is a common optical fiber ointment on the market, for example, LT-420 type optical fiber filling ointment on the market is filled in the loose tube 22, the water-blocking layer 25 and the armor layer 26 are disposed on the periphery of the loose tubes 22 from inside to outside, the cable core filler 24 is a common filling ointment on the market, for example, ZLT-60 type filling ointment, is filled between the loose tube 22 and the water-proof layer 25, and the armor layer 26 is a plastic-coated steel band or a plastic-coated aluminum band. The waterproof structure sequentially adopts the four-stage waterproof structure of the fiber paste, the loose sleeve, the cable core filling body and the waterproof layer from inside to outside, greatly enhances the waterproof capability of the product, can be laid outdoors, and is particularly suitable for being used in rainy seasons in the south.

The water-resistant layer 25 of the present disclosure is one or more layers of polyester non-woven fabric composite polymer absorption resin layers. The present disclosure may provide one or more water-resistant layers depending on the particular circumstances of the installation environment to provide water protection at different levels of strength.

The optical fiber cable further comprises filling ropes 27, wherein 7 filling ropes 27 are stranded in the loose tube in layers, and the optical fiber cable plays a physical compression-resistant protection role for an optical fiber unit in the loose tube.

This disclosure is still including opening hawser 28, should open hawser 28 and locate between water-blocking layer 25 and armor 26, the rope that opens that this disclosure set up can make when operating personnel peels off this disclosed optical cable quicker, simple and convenient.

The waterproof and armored waterproof structure further comprises aluminum foil longitudinal wrapping strips (not shown), wherein the aluminum foil longitudinal wrapping strips are arranged between the waterproof layer and the armored layer and have the functions of damp proofing, shielding and armor.

The 8-shaped jacket 3 is internally distributed with air bubbles. The distributed air bubbles are beneficial to reducing the overall weight of the optical cable, and the weight of the optical cable is reduced when the optical cable is laid; the water guide strip 31 is arranged at the bottom of the 8-shaped sheath, the cross section of the water guide strip is of an inverted triangular structure, water drops gathered at the bottom of the optical cable after rainfall can drip from the bottom of the optical cable through the water guide strip, and the water drops are effectively prevented from gathering at the bottom of the optical cable; the surface of 8 style of calligraphy sheath is equipped with the hydrophobic layer, can not be detained at the surface of sheath through the hydrophobic layer rainwater, and the raindrop passes through the action of gravity and slides along sheath surface top-down.

This openly sets gradually waterproof, armor and sheath structure from inside to outside traditional self-supporting optical cable, has strengthened product waterproof performance and the tensile or impact performance of anti external force greatly. Through the special structural design, the stability of data transmission of the product is ensured. The outdoor laying method is suitable for laying outdoors, and is particularly suitable for being used in rainy seasons in the south.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. An 8-shaped self-supporting optical cable is characterized by comprising a metal stranded wire, a cable core and an 8-shaped sheath, wherein the metal stranded wire and the cable core are respectively arranged in inner cavities at the upper end and the lower end of the 8-shaped sheath, the cable core comprises optical fiber units, loose tubes, fiber paste, a cable core filling body, a water blocking layer and an armor layer, a plurality of optical fiber units are arranged at the center of the loose tubes, the fiber paste is filled in the loose tubes, the water blocking layer and the armor layer are arranged on the periphery of the loose tubes from inside to outside, and the cable core filling body is filled between the loose tubes and the water blocking layer;

air bubbles are distributed in the 8-shaped sheath; the bottom of the 8-shaped sheath is provided with a water guide strip, and the cross section of the water guide strip is of an inverted triangular structure; and the outer surface of the 8-shaped sheath is provided with a hydrophobic layer.

2. The optical cable of claim 1, wherein the water-resistant layer is one or more layers of a polyester non-woven fabric composite polymer absorbent resin layer.

3. The fiber optic cable of claim 1, further comprising a filler cord, a number of the filler cord layers stranded within the loose tube.

4. The optical cable of claim 1, wherein a plurality of the optical fiber units are spaced apart such that the optical fiber units have an allowance space when being stretched or retracted.

5. The fiber optic cable of claim 1, further comprising a longitudinal aluminum foil wrap disposed between the water-resistant layer and the armor layer.

6. The fiber optic cable of claim 1, wherein the number of the optical fiber units is 4-144.

7. The fiber optic cable of claim 1, further comprising an opening cable disposed between the water resistant layer and an armor layer.