CN210166541U

CN210166541U - Lightweight indoor device optical cable

Info

Publication number: CN210166541U
Application number: CN201920377413.XU
Authority: CN
Inventors: 符剑松
Original assignee: Changfei Fiber Optic Cable (shanghai) Co Ltd
Current assignee: Changfei Fiber Optic Cable (shanghai) Co Ltd; Yangtze Optical Fibre and Cable Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-03-20
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses a lightweight indoor device optical cable, including high fire-retardant oversheath 1 and optic fibre unit, be provided with at least a set of tear hole group along radial arrangement on the mantle wall of high fire-retardant oversheath 1, every group tear hole group contains a tear hole 2 at least, tear hole 2 along the axial extension of optical cable, be provided with nonmetal aramid fiber 3 that blocks water in tear hole 2; when the tearing hole groups are more than one group, the tearing hole groups are uniformly distributed along the circumference of the outer sheath. The utility model discloses an indoor device optical cable of lightweight when keeping oversheath bulk strength basically, has both reached convenient tearing function, has alleviateed whole weight again to effectively increase the tensile strength and the water blocking performance of optical cable.

Description

Lightweight indoor device optical cable

Technical Field

The utility model relates to an optical fiber cable especially relates to an indoor device optical cable.

Background

With the development of indoor device optical cables, the requirements of the device optical cables are continuously updated, and the optical cables are required to be light, convenient to carry, and capable of being quickly stripped, preferably manually stripped without tools according to different use environments; can have smaller bending diameter, higher optical fiber core number and small optical cable size. But also has the conventional properties of tensile resistance, lateral pressure resistance and the like. Traditional multicore optical cable is mostly aramid fiber parcel tight sleeve optical unit, leads to the optical cable external diameter big like this, and the butt fusion is peeled off the process troublesome, waste time, and the optical cable volume is big on the contrary in addition, inconvenient removal, and weight is big, lets end user use more troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a lightweight indoor device optical cable is provided, when keeping oversheath bulk strength basically, both reached convenient tearing function, alleviateed whole weight again to effectively increase the tensile strength and the water blocking performance of optical cable.

The utility model discloses a solve above-mentioned technical problem and the technical scheme who adopts is:

a lightweight indoor device optical cable comprises a high flame-retardant outer sheath 1 and an optical fiber unit, wherein at least one group of tearing hole groups arranged along the radial direction are arranged on the sleeve wall of the high flame-retardant outer sheath 1, each group of tearing hole groups at least comprises one tearing hole 2, the tearing holes 2 extend along the axial direction of the optical cable, and nonmetal water-blocking aramid fibers 3 are arranged in the tearing holes 2; when the tearing hole groups are more than one group, the tearing hole groups are uniformly distributed along the circumference of the outer sheath.

Furthermore, the optical fiber unit comprises a plurality of optical fibers 5, the optical fibers 5 are wrapped into a circle by the easily-stripped polyacrylic resin 4, and the optical fibers 5 are uniformly distributed in the circle polyacrylic resin 4.

Further, six groups of tearing holes are arranged on the sleeve wall of the high flame-retardant outer sheath 1.

Further, the tearing hole 2 is a circular hole with the diameter of 0.5 mm.

Further, the outer diameter of the easily-stripped polyacrylic resin 4 is 1.0mm, the overall outer diameter of the optical cable is 5.0mm, and the wall thickness of the optical cable is 2.0 mm.

The utility model discloses an optical cable is with original concentrated setting but the tear groove that influences overall structure and intensity decompose into the tiny unique form in a plurality of tear hole ingeniously, and the tear hole has both reached convenient tearing function when keeping oversheath bulk strength basically, has alleviateed whole weight again to inlay the nonmetal aramid fiber of establishing through the tear hole and reached effective increase bulk strength, increase tensile strength's effect.

Compared with the prior art, the optical cable of the utility model, have following advantage:

(1) the optical fibers are wrapped by the easily-stripped polyacrylic resin material, so that the optical fibers are separated from each other and are not contacted, the optical fibers are integrally formed, the structural size is small, the optical fibers cannot generate signal transmission interference, and the optical fibers are easy to strip manually during welding;

(2) the high-flame-retardant outer sheath is made of thermoplastic polyolefin elastomer materials, so that the high-flame-retardant outer sheath has strong protection on internal easily-stripped polyacrylic resin, and the optical cable has certain combustion and side pressure resistance, and also has the properties of ageing resistance, oil resistance, ultraviolet resistance and the like;

(3) the oversheath extrusion molding in the sheath in the formation diameter be 0.5mm tear the hole to set up nonmetal aramid fiber that blocks water, guaranteed the tensile resistance and the water blocking performance of whole cable, through the setting of a large amount of holes of tearing simultaneously, under the circumstances of guaranteeing the sheath integrality, the effectual weight that alleviates the oversheath lets the light of whole cable change easily carry, easily crooked can have less bending diameter. The overall outer diameter of the optical cable is 5.0mm, and the wall thickness is 2.0 mm.

Drawings

Fig. 1 is the utility model discloses the structural schematic diagram of lightweight indoor device optical cable.

In the figure:

1. high flame-retardant outer sheath 2 and tearing hole

3. Nonmetal water-blocking aramid 4 and easily-stripped polyacrylic resin

5. Optical fiber

Detailed Description

The invention is further described with reference to the following figures and examples.

Fig. 1 shows a lightweight optical cable for indoor devices, which comprises a highly flame-retardant outer sheath 1 and an optical fiber unit, wherein six groups of tearing holes arranged along the radial direction are arranged on the wall of the highly flame-retardant outer sheath 1, each group of tearing holes comprises four tearing holes 2 (namely four tearing holes arranged along the radial direction), the tearing holes 2 extend along the axial direction of the optical cable, and the diameter of each tearing hole 2 is a circular hole of 0.5 mm; a nonmetal water-resistant aramid fiber 3 is arranged in the tearing hole 2, and the nonmetal water-resistant aramid fiber 3 is a high-strength water-resistant synthetic fiber material; six groups of the tearing hole groups are uniformly distributed along the circumference of the outer sheath.

The optical fiber unit comprises a plurality of optical fibers 5, the optical fibers 5 are wrapped into a circle by easily-stripped polyacrylic resin 4, and the optical fibers 5 are uniformly distributed in the round polyacrylic resin 4. Of course, the optical fiber unit may be in other conventional structures according to different engineering requirements.

The outer diameter of the easily-stripped polyacrylic resin 4 is 1.0mm, the overall outer diameter of the optical cable is 5.0mm, and the wall thickness of the optical cable is 2.0 mm.

Certainly, according to the difference of engineering demand, optical cable size, above-mentioned tear hole group also can set up to one set, two sets or other group numbers, when tear hole group is more than a set of, a plurality of tear hole group is along oversheath 1 circumference equipartition setting. The tearing holes 2 in each group of tearing hole groups can also be adjusted according to the specific thickness of the optical cable, and can be 3, 2, 1 or 5.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A lightweight indoor device optical cable comprises a high flame-retardant outer sheath (1) and an optical fiber unit, and is characterized in that: at least one group of tearing hole groups arranged along the radial direction are arranged on the sleeve wall of the high flame-retardant outer sheath (1), each group of tearing hole groups at least comprises a tearing hole (2), the tearing holes (2) extend along the axial direction of the optical cable, and nonmetal water-blocking aramid fibers (3) are arranged in the tearing holes (2); when the tearing hole groups are more than one group, the tearing hole groups are uniformly distributed along the circumference of the outer sheath.

2. The light-weight indoor device optical cable of claim 1, wherein: the optical fiber unit comprises a plurality of optical fibers (5), the optical fibers (5) are wrapped into a circle by the easily-stripped polyacrylic resin (4), and the optical fibers (5) are uniformly distributed in the easily-stripped polyacrylic resin (4).

3. The light-weight indoor device optical cable of claim 2, wherein: the outer diameter of the easily-stripped polyacrylic resin (4) is 1.0mm, the whole outer diameter of the optical cable is 5.0mm, and the wall thickness of the optical cable is 2.0 mm.

4. The light-weight indoor device optical cable of claim 1, 2 or 3, wherein: six groups of tearing hole groups are arranged on the sleeve wall of the high flame-retardant outer sheath (1).

5. The lightweight indoor device optical cable of claim 4, wherein: the tearing hole (2) is a circular hole with the diameter of 0.5 mm.