CN114994844A - A kind of two-color strip all-dielectric self-supporting optical cable - Google Patents

Abstract

The invention relates to the technical field of optical cable accessories, in particular to a dual-color strip all-dielectric self-supporting optical cable, which improves the mechanical properties of the optical cable, reduces the lateral friction force on the surface of the optical cable, and facilitates construction; In the outer outer sheath, the cable core includes stranded optical fiber components and two non-metallic reinforcing members, and the cross-sectional shape of the outer ring of the outer sheath is a circle with a plurality of raised ribs evenly distributed.

Description

A kind of two-color strip all-dielectric self-supporting optical cable

technical field

The invention relates to the technical field of optical cable attachment devices, in particular to a dual-color strip all-dielectric self-supporting optical cable.

Background technique

Optical fiber cable is manufactured to meet optical, mechanical or environmental performance specifications, it is a communication using one or more optical fibers placed in a sheath as the transmission medium and can be used individually or in groups cable assembly.

Nowadays, with the rapid development of the communication industry, optical cable products are widely used in various fields with excellent transmission performance, optimized structure size and low cost. With the large-scale application of optical cables, the existing reserved wiring space can no longer fully meet the needs. , With the network upgrade, a large number of optical cables are stored in the existing wiring space, so an optical cable that is easy to construct and easy to identify is particularly important.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a dual-color strip all-dielectric self-supporting optical cable, which improves the mechanical properties of the optical cable, reduces the lateral frictional force on the surface of the optical cable, and facilitates construction.

A dual-color strip all-dielectric self-supporting optical cable of the present invention includes a cable core and an outer sheath wrapped around the outside of the cable core. The cross-sectional shape of the ring is a circle with a plurality of ridges evenly distributed.

Further, each convex edge of the outer sheath is provided with a second non-metallic reinforcing member.

Further, the optical fiber assembly includes several optical fibers, fiber paste wrapping the optical fibers, and a loose tube wrapping the fiber paste.

Further, the optical fiber assembly also includes a threaded steel pipe sleeved on the outside of the loose tube.

Further, the cable core further includes a water blocking yarn 1 located in the center of the cable core.

Further, two water blocking yarns and a tearing rope are also arranged in the outer sheath.

Further, the first non-metallic reinforcing member and the second non-metallic reinforcing member are made of FRP.

Further, colored strips are provided at two opposite raised edges of the outer sheath.

Compared with the prior art, the beneficial effects of the present invention are as follows: the cross-sectional shape of the outer ring of the optical cable outer sheath of the present invention is a circle with a plurality of convex edges evenly distributed, which can greatly reduce the lateral frictional force on the surface of the cable, and simultaneously. , the cable core is made of optical fiber components and two non-metallic reinforcements, which are twisted together to form an S shape, which makes the overall structure of the cable core more compact and higher in strength, and it is easier to distinguish through the set color bars.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Symbols in the drawings: 1. Outer sheath; 2. Non-metallic reinforcement part 1; 3. Non-metallic reinforcement part 2; 4. Optical fiber; 5. Fiber paste; 6. Loose tube; 7. Threaded steel pipe; 8. Resistance Water yarn one; 9, water blocking yarn two; 10, tearing rope; 11, color strip.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in FIG. 1, a dual-color strip all-dielectric self-supporting optical cable of the present invention includes a cable core and an outer sheath 1 wrapped around the outside of the cable core. The cable core includes twisted optical fiber components and two non-metallic reinforcements Part 1 2, the cross-sectional shape of the outer ring of the outer sheath 1 is a circle with a plurality of ridges evenly distributed;

In this embodiment, the cross-sectional shape of the outer ring of the outer sheath of the optical cable of the present invention is a circle with a plurality of ridges evenly distributed, which can greatly reduce the lateral friction force on the surface of the cable. Two non-metallic reinforcements 1 and 2 are twisted together to form an S shape, which makes the overall structure of the cable core more compact and higher in strength.

As a preferred solution of the above-mentioned embodiment, each convex edge of the outer sheath 1 is provided with a non-metallic reinforcing member II 3;

In this embodiment, during the extrusion process of the outer sheath 1, a non-metallic reinforcing member 2 3 is dragged into each convex edge of the outer sheath 1 to further improve the tensile resistance of the optical cable itself.

As a preferred solution of the above embodiment, the optical fiber assembly includes a plurality of optical fibers 4, a fiber paste 5 that wraps the optical fibers 4, and a loose tube 6 that wraps the fiber paste 5;

As a preferred solution of the above-mentioned embodiment, the optical fiber assembly further includes a threaded steel pipe 7 sleeved on the outside of the loose tube 6;

In this embodiment, the threaded steel pipe 7 is sheathed outside the loose tube 6 to make the optical fiber assembly more resistant to compression.

As a preferred solution of the above embodiment, the cable core further comprises a water blocking yarn-8 at the center of the cable core;

In this embodiment, when the optical fiber assembly and the non-metallic reinforcing member one 2 pass through the S twist, the water blocking yarn one 8 is added at the same time to form a cable core to prevent moisture from entering the interior of the optical fiber assembly.

As a preferred solution of the above embodiment, the outer sheath 1 is also provided with two water blocking yarns 9 and a tearing rope 10;

In this embodiment, the two water blocking yarns are respectively located between the two non-metallic reinforcing members 1 2 and the cable core, and the tearing rope 10 is located between the two non-metallic reinforcing members 1 2. 9. The waterproof ability of the optical cable is further improved. The tearing rope 10 provided can further improve the anti-pulling ability of the optical cable, and can also absorb the heat generated by the optical cable during use.

As a preferred solution of the above embodiment, the non-metallic reinforcing member 1 2 and the non-metallic reinforcing member 2 3 are both made of FRP;

In this embodiment, the FRP material has the advantages of light weight and high strength, and also has excellent chemical corrosion resistance, heat resistance and thermal insulation, which further improves the tensile and compressive resistance of the optical cable.

As a preferred solution of the above embodiment, colored strips 11 are provided at the two opposite ridges of the outer sheath 1;

In this embodiment, the color bar 11 and the outer sheath 1 are integrated into one body, and the color bar 11 can be of any color through the provided color bar 11, which can make it easier to distinguish different optical cables.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. A dual-color strip all-dielectric self-supporting optical cable, characterized in that it comprises a cable core and an outer sheath (1) wrapped around the outside of the cable core, and the cable core comprises a twisted optical fiber assembly and two non-metallic reinforcements One (2), the cross-sectional shape of the outer ring of the outer sheath (1) is a circle with a plurality of raised ribs evenly distributed. 2 . The dual-color strip all-dielectric self-supporting optical cable according to claim 1 , wherein a non-metallic reinforcing member two ( 3 ) is provided at each convex edge of the outer sheath ( 1 ). 3 . 3. A kind of dual-color strip all-dielectric self-supporting optical cable according to claim 2, characterized in that, the optical fiber assembly comprises several optical fibers (4), fiber paste (5) wrapping the optical fibers (4), and wrapping Hold the loose tube (6) of the fiber paste (5). 4. The dual-color strip all-dielectric self-supporting optical cable according to claim 3, characterized in that the optical fiber assembly further comprises a threaded steel pipe (7) sleeved on the outside of the loose tube (6). 5. The dual-color strip all-dielectric self-supporting optical cable according to claim 4, wherein the cable core further comprises a water blocking yarn one (8) at the center of the cable core. 6. A kind of two-color strip all-dielectric self-supporting optical cable according to claim 5, characterized in that, two water blocking yarns (9) and a tearing rope (10) are also provided in the outer sheath (1). ). 7 . The dual-color strip all-dielectric self-supporting optical cable according to claim 6 , wherein the non-metallic reinforcing member one (2) and the non-metallic reinforcing member two (3) are both made of FRP material. 8 . 8 . The dual-color strip all-dielectric self-supporting optical cable according to claim 7 , wherein two opposite ridges of the outer sheath ( 1 ) are provided with colored strips ( 11 ). 9 .

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