CN214669747U - Easily-stripped relay optical cable - Google Patents

Abstract

The utility model belongs to the technical field of the relay optical cable technique and specifically relates to an easily peel off relay optical cable, including a plurality of optic fibre subunits, non-metallic reinforcement and sheath, all optic fibre subunits concentrate and arrange the optical cable center in, the peripheral parcel of optic fibre subunit has the sheath, the sheath is embedded to have non-metallic reinforcement, non-metallic reinforcement is provided with two, and two non-metallic reinforcement symmetric distributions are in the sheath, optic fibre subunit contains subunit sheath and an at least colored optic fibre, and colored optic fibre is located in the subunit sheath, the subunit sheath is formed by the extrusion of low smoke and zero halogen flame retardant material or TPEE, the utility model discloses can solve among the prior art problem that the sleeve pipe peeled off inconveniently.

Description

Easily-stripped relay optical cable

Technical Field

The utility model relates to a relay optical cable technical field, specific field is an easily peel relay optical cable.

Background

At present, with the development of FTTH, the number of types of optical cables entering a home is increasing, and the number of users accessing optical fibers is also increasing. Traditional optical cable wiring construction needs to peel off sheath and sleeve pipe to reserve certain "redundant length", the intermediate off-line of being convenient for, however, this kind of relay mode is very inconvenient. Meanwhile, in the traditional sleeve stripping mode, the sleeve needs to be stripped through tools such as a blade and the like, ointment is wiped, time and labor are wasted, and the construction efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an easily peel off relay optical cable to the inconvenient problem is peeled off to the sleeve pipe among the solution prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an easy-to-peel relay optical cable, includes a plurality of optic fibre subunits, nonmetal reinforcement and sheath, and all optic fibre subunits are concentrated and are arranged in the optical cable center, the peripheral parcel of optic fibre subunit has the sheath, the sheath is embedded to have nonmetal reinforcement, nonmetal reinforcement is provided with two, and two nonmetal reinforcement symmetric distributions are in the sheath, optic fibre subunit contains subunit sheath and an at least colored optic fibre, and colored optic fibre is located in the subunit sheath, the subunit sheath is formed by low smoke and zero halogen flame retardant material or TPEE extrusion.

Preferably, the sheath is made of low-smoke halogen-free flame retardant or TPEE material, and compared with the traditional tightly-packed sheath, the sheath has the characteristics of easy stripping and low shrinkage.

Preferably, the outer sheath wraps the outer side of the sheath, and the parallel reinforcing pieces are embedded in the outer sheath.

Preferably, the outer sheath is made of a low-smoke halogen-free high-flame-retardant fireproof crusting material.

Preferably, the non-metallic reinforcement is made of high modulus fibers.

Compared with the prior art, the beneficial effects of the utility model are that: the optical fiber is extruded into the optical fiber subunit with smaller outer diameter by adopting the low-smoke halogen-free flame retardant material or TPEE, and the optical fiber subunit sheath has the advantages of small back shrinkage and easy separation of the subunit from the outer sheath, so that the optical fiber subunit can be easily drawn out of the sheath, the requirement of skylight construction is met, and the use and maintenance are facilitated; two symmetrical non-metal reinforcing parts are embedded in the sheath, so that the tensile property and the compression resistance of the product are effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 optical fiber subunit, 2 non-metallic reinforcement, 3 jacket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: an easily-stripped relay optical cable comprises a plurality of optical fiber subunits 1, non-metal reinforcements 2 and sheaths 3, wherein all the optical fiber subunits 1 are intensively arranged at the center of the optical cable, all the optical fiber subunits 1 are mutually twisted in a twisting mode to form a cable core, the sheaths 3 wrap the peripheries of the optical fiber subunits 1, the non-metal reinforcements 2 are embedded in the sheaths 3, the number of the non-metal reinforcements 2 is two, the two non-metal reinforcements 2 are symmetrically distributed in the sheaths 3, the tensile property and the compression resistance of the product are effectively improved by embedding the non-metal reinforcements 2, furthermore, the optical fiber subunits 1 comprise subunit sheaths and at least one colored optical fiber, the colored optical fiber is arranged in the subunit sheaths, the subunit sheaths are formed by extruding low-smoke halogen-free flame-retardant materials or TPEE, the optical fiber is extruded into the optical fiber subunit 1 with a smaller outer diameter by adopting the low-smoke halogen-free flame-retardant materials or TPEE, the sheath 3 of the optical fiber subunit 1 has the advantages of small back shrinkage and easy separation of the subunit and the outer sheath, so that the optical fiber subunit 1 can be easily drawn out from the sheath 3, the requirement of skylight construction is met, and the use and maintenance are facilitated.

Preferably, the sheath 3 is made of low-smoke halogen-free flame retardant or TPEE material, and compared with the traditional tightly-packed sheath, the sheath has the characteristics of easy stripping and low shrinkage, so that the whole optical cable has excellent flame retardant property, and the requirements of indoor and outdoor optical cables can be met.

Preferably, whether an outer sheath (not shown) is added or not can be selected according to the actual requirement on the flattening force, a side pressure resisting element and a water blocking material or a parallel reinforcing piece are arranged in the outer sheath, and the outer sheath is made of a low-smoke halogen-free high-flame-retardant fireproof crusting material.

Preferably, the nonmetal reinforcing part 2 is made of high-modulus fibers, so that the tensile capacity is strong, the water resistance is good, and the overall tensile performance of the optical cable is ensured.

According to the relay optical cable, the optical fiber is extruded into the optical fiber subunit 1 with the smaller outer diameter by adopting the low-smoke halogen-free flame retardant material or TPEE, the optical fiber subunit 1 is easy to peel off, so that the optical fiber subunit 1 can be easily pulled out of the sheath 3, the requirement of skylight construction is met, the construction is convenient, the construction efficiency is improved, the construction cost is saved, and the relay optical cable can be directly subjected to off-line relay in the middle by matching with a special tool, so that the relay optical cable is more convenient than the traditional construction scheme; two symmetrical non-metal reinforcing parts 2 are embedded into the sheath 3, so that the tensile property and the compression resistance of the product are effectively improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. An easy-to-strip relay optical cable is characterized in that: including a plurality of optic fibre subelements (1), non-metallic reinforcement (2) and sheath (3), all optic fibre subelements (1) are concentrated and are arranged in the optical cable center, optic fibre subelement (1) peripheral parcel has sheath (3), sheath (3) are embedded to have non-metallic reinforcement (2), non-metallic reinforcement (2) are provided with two, and two non-metallic reinforcement (2) symmetric distributions are in sheath (3), optic fibre subelement (1) contains a subelement sheath and an at least colored optic fibre, and colored optic fibre is located in the subelement sheath, the subelement sheath is formed by low smoke and zero halogen flame retardant material or TPEE extrusion.

2. An easy-to-peel relay optical cable according to claim 1, wherein: the sheath (3) is made of low-smoke halogen-free flame retardant or TPEE material.

3. An easy-to-peel relay optical cable according to claim 1, wherein: the outer sheath is wrapped on the outer side of the sheath (3), and parallel reinforcing pieces are embedded in the outer sheath.

4. An easy-to-peel relay optical cable according to claim 3, wherein: the outer sheath is made of low-smoke halogen-free high-flame-retardant fireproof crusting materials.

5. An easy-to-peel relay optical cable according to claim 1, wherein: the non-metallic reinforcement (2) is made of high modulus fibers.

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