CN212569220U

CN212569220U - Large-span aerial optical fiber ribbon optical cable

Info

Publication number: CN212569220U
Application number: CN202020644048.7U
Authority: CN
Inventors: 王俊吉; 张宁
Original assignee: Nanjing Institute of Mechatronic Technology
Current assignee: Nanjing Institute of Mechatronic Technology
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-02-19
Anticipated expiration: 2030-04-24

Abstract

The utility model discloses a large-span aerial fiber ribbon optical cable, including outer protective layer, the inside of outer protective layer has the waterproof layer around the package, and the inside of waterproof layer has the insulating layer around the package, and the inside of insulating layer has interior protective layer around the package, and the inside of interior protective layer has four loose tubes and a cable core around the package, and the cable core is located between four loose tubes, and four loose tube crowded packages have a plurality of optic fibre and cable core. This kind of large-span aerial fiber ribbon optical cable makes interior protective layer through outer protective layer and the polyethylene of making by polyurethane, makes it not only have good barrier propterty and wear resistance to its quality is lighter, has reduced weight, and coefficient of friction is little, has made things convenient for people to be under construction, and has good pliability, can protect loose sleeve pipe and cable core, has promoted the practicality.

Description

Large-span aerial optical fiber ribbon optical cable

Technical Field

The utility model relates to an aerial optical cable specifically is a big span aerial optical fiber ribbon optical cable.

Background

The aerial optical cable is an optical cable which is hung on an electric pole, the aerial optical cable can be laid by utilizing the original aerial open circuit pole line, the construction cost is saved, the construction period is shortened, the aerial optical cable is hung on the electric pole, the aerial optical cable is required to be capable of adapting to various natural environments, is generally used for long-distance second-class or below-second-class lines, and is suitable for special network optical cable lines or some local special sections.

At present, most of aerial optical cables are erected outdoors, so that the aerial optical cables have enough strength, the self weight of the aerial optical cables is heavy, and the aerial optical cables are inconvenient to lay. Therefore, the large-span aerial optical fiber ribbon optical cable is improved.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a big span aerial fiber area optical cable.

The utility model discloses a realize with following technical scheme: the utility model provides a large-span aerial fiber ribbon optical cable, includes the outer protective layer, the inside of outer protective layer has the waterproof layer around the package, the inside of waterproof layer has the insulating layer around the package, the inside of insulating layer has interior protective layer around the package, the inside of interior protective layer has four loose tubes and a cable core around the package, the cable core is located between four loose tubes, four the crowded package of loose tube has a plurality of optic fibre and cable core.

As an optimized technical scheme of the utility model, the outer protective layer is made by polyurethane material, the thickness of outer protective layer is 2 mm.

As an optimal technical scheme of the utility model, the waterproof layer is made by polyvinyl chloride, and the outer wall and the inner wall of waterproof layer all convolute waterproof sticky tape.

As an optimized technical scheme of the utility model, insulating layer glass fiber makes, the thickness of insulating layer is 1.1 mm.

As an optimized technical scheme of the utility model, the inner protective layer is made by polyethylene, the thickness of inner protective layer is 1.5 mm.

As an optimized technical scheme of the utility model, the inside packing of pine sleeve pipe has the filler that blocks water, the filler that blocks water is made by polyacrylamide.

The utility model has the advantages that:

1. this kind of large-span aerial fiber ribbon optical cable makes interior protective layer through outer protective layer and the polyethylene of making by polyurethane, makes it not only have good barrier propterty and wear resistance to its quality is lighter, has reduced weight, and coefficient of friction is little, has made things convenient for people to be under construction, and has good pliability, can protect loose sleeve pipe and cable core, has promoted the practicality.

2. This kind of large-span aerial fiber ribbon optical cable, through the waterproof layer of making by polyvinyl chloride, makes it have good waterproof performance to cooperation waterproof sticky tape, reduction rainwater weather that can be great, the possibility of rainwater infiltration cable core department has promoted the practicality, through the filler that blocks water in the pine sleeve, can be fine prevent that liquid from permeating to the inside of pine sleeve, prevents the use of liquid influence optic fibre, has promoted waterproof performance.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the loose tube construction.

In the figure: 1. an outer protective layer; 2. a waterproof layer; 3. a thermal insulation layer; 4. an inner protective layer; 5. loosening the sleeve; 6. a water-blocking filler; 7. an optical fiber; 8. and a cable core.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-2, a large-span aerial optical fiber ribbon cable comprises an outer protection layer 1, a waterproof layer 2 is wound inside the outer protection layer 1, a heat insulation layer 3 is wound inside the waterproof layer 2, an inner protection layer 4 is wound inside the heat insulation layer 3, four loose tubes 5 and a cable core 8 are wound inside the inner protection layer 4, the cable core 8 is located between the four loose tubes 5, and the four loose tubes 5 are wrapped with a plurality of optical fibers 7 and the cable core 8 in an extruding mode.

Wherein, outer protective layer 1 is made by polyurethane material, and outer protective layer 1's thickness is 2mm, and outer protective layer 1 through making by polyurethane not only has good barrier propterty and wear resistance to its quality is lighter and coefficient of friction is little, has made things convenient for people to construct.

Wherein, waterproof layer 2 is made by polyvinyl chloride, and waterproof layer 2's outer wall and inner wall all convolute waterproof tape, through waterproof layer 2 made by polyvinyl chloride, make it have good waterproof performance to cooperate waterproof tape, reduction rainwater weather that can be great, possibility that rainwater infiltration cable core 8 was located has promoted the practicality.

Wherein, 3 glass fiber of insulating layer make, and the thickness of insulating layer 3 is 1.1mm, through the insulating layer 3 of making by glass fiber, makes it have good heat-proof quality, makes it isolated to external heat that can be fine under high temperature weather, reduces the influence that cable core 8 and optic fibre 7 received in high temperature weather.

Wherein, interior protective layer 4 is made by polyethylene, and the thickness of interior protective layer 4 is 1.5mm, through making interior protective layer 4 by polyethylene, makes it have good pliability, and then when making four loose tube 5 at interior protective layer 4 removal, can reduce the wearing and tearing between loose tube 5 and the interior protective layer 4, has promoted the practicality.

Wherein, the inside of loose tube 5 is filled with the filler 6 that blocks water, and the filler 6 that blocks water is made by polyacrylamide, through the filler 6 that blocks water in the loose tube 5, can be fine prevent that liquid from permeating to the inside of loose tube 5, prevent that liquid from influencing the use of optic fibre 7.

Make inner protective layer 4 through outer protective layer 1 and the polyethylene of making by polyurethane, make it not only have good barrier propterty and wear resistance, and its quality is lighter, weight has been reduced, and coefficient of friction is little, people's construction has been made things convenient for, and have good pliability, can protect loose tube 5 and cable core 8, the practicality has been promoted, through waterproof layer 2 made by polyvinyl chloride, make it have good waterproof performance, and cooperate waterproof sticky tape, can be great reduce rainy weather, the possibility of rainwater infiltration cable core 8 department, the practicality has been promoted, filler 6 blocks water through in the loose tube 5, can be fine prevent that liquid from permeating to the inside of loose tube 5, prevent that liquid from influencing the use of optic fibre 7, waterproof performance has been promoted.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a large-span aerial optical fiber ribbon cable, includes outer protective layer (1), its characterized in that, the inside of outer protective layer (1) is wrapped there is waterproof layer (2), the inside of waterproof layer (2) is wrapped there is insulating layer (3), the inside of insulating layer (3) is wrapped there is inner protective layer (4), the inside of inner protective layer (4) is wrapped there are four loose tubes (5) and one cable core (8), cable core (8) are located between four loose tubes (5), four the crowded package of loose tube (5) has a plurality of optic fibre (7) and cable core (8).

2. Large span overhead optical fiber ribbon cable according to claim 1, wherein the outer protective layer (1) is made of a polyurethane material, the thickness of the outer protective layer (1) being 2 mm.

3. The large-span overhead optical fiber ribbon cable according to claim 1, wherein the waterproof layer (2) is made of polyvinyl chloride, and waterproof tapes are wound around both outer and inner walls of the waterproof layer (2).

4. Large span overhead optical fiber ribbon cable according to claim 1, wherein the insulation layer (3) is made of glass fibers, the thickness of the insulation layer (3) being 1.1 mm.

5. Large span overhead optical fiber ribbon cable according to claim 1, wherein the inner protective layer (4) is made of polyethylene, the thickness of the inner protective layer (4) being 1.5 mm.

6. Large span overhead optical fiber ribbon cable according to claim 1, wherein the inside of the loose tube (5) is filled with a water blocking filler (6), the water blocking filler (6) being made of polyacrylamide.