CN215005998U - Optical cable convenient to open and shell - Google Patents

Abstract

The utility model relates to an optical cable convenient to open and shell belongs to light conductivity transmission technical field. The cable comprises a cable core, wherein the surface of the cable core is coated with a sheath, the sheath is provided with a plurality of annular grooves along the length direction, and the annular grooves are uniformly arranged at intervals. The annular groove is arc-shaped or trapezoidal. The sheath is made of flame-retardant materials. The cable core comprises at least one optical fiber, and when the number of the optical fibers is more than 1, the optical fiber is sleeved with a coloring layer or a tight coating layer or the coloring layer and the tight coating layer. The optical fiber is sleeved with a reinforcing element or a water blocking material. The reinforcing element is a non-metallic reinforcing material. The water-blocking material piece is a dry water-blocking material piece. This application is equipped with the annular groove on the sheath surface, can directly press the annular groove with the hand, need not with the help of any appurtenance, just can break the sheath, and then peel the optical cable. Not only greatly improve the efficiency of construction, also avoided construction danger such as being cut that the use of tools brought simultaneously.

Description

Optical cable convenient to open and shell

Technical Field

The utility model relates to an optical cable convenient to open and shell belongs to light conductivity transmission technical field.

Background

Optical fiber communication is widely used as an information transmission medium due to its unique advantages of interference resistance, light weight, large capacity and the like. With the advance of strategic process of broadband China, the optical communication industry in China shows a high-speed growth situation. Especially, optical fibers extend to a user end, the density of optical fiber cables in cities is higher and higher, meanwhile, the construction path of the optical cables is complex when the optical cables are led into a corridor, the optical cables are required to have excellent bending performance when passing through a plurality of bending points, meanwhile, the workload of optical cable leading-in end users is higher and higher, the optical cables need to be stripped by means of a plurality of tools, the working efficiency is low, the risk of being cut in the construction process is also brought, ointment is filled in a conventional optical cable sleeve, the structure is complex, inconvenience is brought to branch connection of the optical cables, and the quick construction and laying of the optical cables are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an optical cable convenient to open and shell is provided to above-mentioned prior art, not only the optical cable is easily crooked, need not moreover to open the sheath of shelling the optical cable with the help of opening the instrument of shelling. The efficiency of optical cable construction laying is improved.

The utility model provides a technical scheme that above-mentioned problem adopted does: the optical cable convenient to peel comprises a cable core, wherein the surface of the cable core is coated with a sheath, a plurality of annular grooves are formed in the surface of the sheath along the length direction, and the annular grooves are uniformly arranged at intervals.

The section of the annular groove is arc-shaped or trapezoidal.

The sheath is made of flame-retardant materials.

The cable core comprises at least one optical fiber, and when the number of the optical fibers is larger than 1, the optical fibers are sleeved with a coloring layer and/or a tight wrapping layer.

The number of the optical fibers is 1-48.

The optical fiber is sleeved with a reinforcing element or a water blocking material.

The reinforcing element is a non-metallic reinforcing material.

The water-blocking material piece is a dry water-blocking material piece.

Compared with the prior art, the utility model has the advantages of:

1. the utility model provides an optical cable convenient to open and shell, is equipped with the annular groove on the sheath surface, can directly press the annular groove with the hand, need not with the help of any appurtenance, just can break the sheath, and then open and shell the optical cable. Not only greatly improve the efficiency of construction, also avoided construction danger such as being cut that the use of tools brought simultaneously.

2. The sheath adopts the fire-retardant sheath that has certain hardness, and the optical cable just can not laminate at the pipeline inner wall during the poling, has promoted the laying performance of optical cable in the pipeline, and the sheath still has fire behaviour simultaneously, is applicable to indoor outer access and uses.

3. The outer sheath with the annular groove enables the optical cable to have good bending performance, is suitable for various laying paths with small bending radius, and is easy to bind, lay and fix.

4. The optical cable is of a full-dry structure, and whether dry-type water-blocking materials are added in the optical cable is determined according to requirements of laying places. Wet water-blocking materials such as factice and the like do not need to be cleaned in the construction process, so that the construction period and the cost are greatly reduced.

5. Whether or not reinforcing material is added to the cable and the amount of addition is determined according to the tensile strength required for the application.

Drawings

Fig. 1-2 are schematic views of an optical cable convenient to peel according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cable core formed by optical fibers and a colored layer;

FIG. 4 is a schematic view of an optical fiber and a tight-clad layer forming a cable core;

FIG. 5 is a schematic view of an optical fiber, a coloring layer, a reinforcing element, and a water blocking material forming a cable core;

FIG. 6 is a schematic view of the optical fibers, coloring layers, binders, reinforcing elements and water blocking material forming the cable core;

in the figure, 1 optical fiber, 2 coloring layers, 3 tightly-covered layers, 4 reinforcing elements, 5 water-blocking material pieces, 6 protective sleeves, 7 annular grooves and 8 binder yarns.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 and 2, in the embodiment, the optical cable convenient to strip includes a cable core, the surface of the cable core is coated with a sheath 6 made of a flame retardant material, a plurality of annular grooves 7 are formed in the surface of the sheath 6 along the length direction, the annular grooves 7 are uniformly arranged at intervals, and the annular grooves 7 are arc-shaped or trapezoidal. When the optical cable is required to be stripped, the annular groove 7 is pressed by hands, the sheath 6 can be broken off, any auxiliary tool is not needed, the construction efficiency is greatly improved, and construction dangers such as cut injury and the like caused by stripping with tools are avoided. The sheath 6 with the annular groove 7 enables the optical cable to have good bending performance and is suitable for various laying paths with small bending radii, and meanwhile, the sheath 6 with the annular groove 7 is easy to bind, lay and fix.

The optical cable needs to have certain rigidity when laying in the pipeline, and sheath 6 adopts low smoke and zero halogen to hinder fuel, polyphenyl ether or other fire-retardant materials that have certain hardness, and the optical cable just can not laminate at the pipeline inner wall when the poling like this, has improved the laying performance of optical cable in the pipeline, and is applicable to indoor outer access and uses.

The cable core comprises 1-48 optical fibers, and when the number of the optical fibers 1 is 1, the surface of the optical fiber 1 does not need to be provided with a coloring layer 2 or a tight cladding layer 3; when the number of the optical fibers 1 is larger than 1, the optical fibers 1 are sleeved with the coloring layer 2 or the tight cladding layer 3 or both the coloring layer 2 and the tight cladding layer 3.

The optical fiber 1 can be sleeved with a reinforcing element 4, the reinforcing element 4 can be of a water-blocking type or a non-water-blocking type, and whether a reinforcing material is added into the optical cable or not and the adding amount are determined according to the tensile strength required by an application occasion. The reinforcing element 4 may also be sleeved with a water-blocking material 5, the water-blocking material 5 is a dry water-blocking material, and the dry water-blocking material may be water-blocking yarn or water-blocking powder or other dry water-blocking materials. The optical cable is of a full-dry structure, and whether dry-type water-blocking materials are added in the optical cable is determined according to requirements of laying places. Wet water-blocking materials such as factice and the like do not need to be cleaned in the construction process, so that the construction period and the cost are greatly reduced.

Example one

As shown in FIG. 3, an optical cable easy to strip, the optical fiber 1 is externally light-cured with a colored layer 2, and the colored layer 2 is in different colors for distinguishing the optical fiber 1. The optical fiber 1 and the coloring layer 2 form a cable core, and the cable core is coated with a sheath 6.

Example two

As shown in FIG. 4, in an optical cable for easy stripping, a tight cladding layer 3 is extruded outside an optical fiber 1, and the tight cladding layer 3 has different colors for distinguishing the optical fibers 1. The optical fiber 1 and the tight cladding layer 3 form a cable core, and the cable core is coated with a sheath 6.

EXAMPLE III

As shown in fig. 5, the optical cable convenient to strip comprises an optical fiber 1, a light-cured coloring layer 2 outside the optical fiber 1, a reinforcing element 4 and a water-blocking material piece 5 sequentially arranged on the coloring layer 2 from inside to outside, the optical fiber 1, the coloring layer 2, the reinforcing element 4 and the water-blocking material piece 5 form a cable core, and a sheath 6 is coated on the cable core.

Example four

As shown in fig. 6, in the optical cable convenient to strip, the light-cured coloring layer 2 outside the optical fiber 1, 12 optical fibers 1 form a bundle of optical fiber bundles, the bundle yarns 8 are respectively arranged outside the 4 bundles of optical fiber bundles, the bundle yarns 8 are different in color to distinguish different optical fiber bundles, the 4 bundles of optical fiber bundles coat the reinforcing element 4 and the water-blocking material piece 5, the optical fiber 1, the coloring layer 2, the bundle yarns 8, the reinforcing element 4 and the water-blocking material piece 5 form a cable core, and the cable core is coated with the sheath 6.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides an optical cable convenient to open and shell which characterized in that: the cable comprises a cable core, wherein the surface of the cable core is coated with a sheath (6), a plurality of annular grooves (7) are formed in the surface of the sheath (6) along the length direction, and the annular grooves (7) are uniformly arranged at intervals.

2. An optical cable for facilitating stripping as claimed in claim 1, wherein: the section of the annular groove (7) is arc-shaped or trapezoidal.

3. An optical cable for facilitating stripping as claimed in claim 1, wherein: the sheath (6) is made of a flame-retardant material.

4. An optical cable for facilitating stripping as claimed in claim 1, wherein: the cable core comprises at least one optical fiber (1), and when the number of the optical fibers (1) is larger than 1, the optical fibers (1) are sleeved with a coloring layer (2) and/or a tight cladding layer (3).

5. An optical cable for facilitating stripping as claimed in claim 4, wherein: the number of the optical fibers (1) is 1-48.

6. An optical cable for facilitating stripping as claimed in claim 4, wherein: the optical fiber (1) is sleeved with a reinforcing element (4) or a water blocking material piece (5).

7. An optical cable for facilitating stripping as claimed in claim 6, wherein: the reinforcing element (4) is a non-metallic reinforcing material piece.

8. An optical cable for facilitating stripping as claimed in claim 6, wherein: the water-blocking material piece (5) is a dry water-blocking material piece.

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