CN216434467U

CN216434467U - Framework type ribbon optical cable suitable for access network

Info

Publication number: CN216434467U
Application number: CN202122443422.4U
Authority: CN
Inventors: 张水先; 沈清华; 沈新荣; 王伟; 李晓剑
Original assignee: Guangdong Hengtong Photoelectric Technology Co Ltd
Current assignee: Guangdong Hengtong Photoelectric Technology Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-03
Anticipated expiration: 2031-10-11

Abstract

The utility model provides a skeleton style ribbon cable suitable for access network, include first PE protective layer, be located inboard aluminium strip of first PE protective layer, be located inboard water blocking tape of aluminium strip, fix a plurality of skeletons of water blocking tape inboard, fix optical fiber ribbon on the skeleton, water blocking tape inboard is formed with the skeleton groove, skeleton groove center is equipped with the reinforcement, first PE protective layer outside cladding has the flame retardant coating, the flame retardant coating outside cladding has the metal mesh grid, metal mesh grid outside cladding has aramid yarn, aramid yarn outside cladding has second PE protective layer. The utility model discloses a skeleton type ribbon optical cable, the clearance between the optical cable is big to have excellent bending property, anti side pressure performance, protection against rodents performance, fire behavior.

Description

Framework type ribbon optical cable suitable for access network

Technical Field

The utility model relates to an optical cable technical field, concretely relates to skeleton type ribbon cable suitable for access network.

Background

Optical fiber cables (optical fiber cables) are manufactured to meet optical, mechanical, or environmental performance specifications and are telecommunication cable assemblies that utilize one or more optical fibers disposed in a surrounding jacket as the transmission medium and that may be used individually or in groups. The optical cable is mainly composed of optical fiber, plastic protective sleeve and plastic sheath, and has no metal such as gold, silver, copper and aluminum, and generally has no recycling value. The optical cable is a communication line which is formed by a certain number of optical fibers into a cable core in a certain mode, is externally coated with a sheath, and is also coated with an outer protective layer for realizing optical signal transmission. The basic structure of the optical cable generally comprises a cable core, a reinforcing steel wire, a filler, a sheath and other parts, and further comprises a waterproof layer, a buffer layer, an insulated metal wire and other components according to requirements.

For high-speed transmission optical cables applied to access networks and the like, the optical fibers in the optical cables are high in density generally, and all the optical fibers are concentrated together to form a cable core in the conventional optical cables, so that the installation of the cable core is facilitated. The gap between the optical fibers is small, and the optical fibers cause interference in high-frequency and high-speed signal transmission. Therefore, there is a need for an optical cable that solves the above problems.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a framework formula ribbon cable suitable for access network, the clearance between the optical cable is big to have excellent bending property, anti side pressure performance, protection against rodents performance, fire behavior.

In order to achieve the above object, the present invention provides the following technical solutions:

the framework type ribbon optical cable suitable for the access network comprises a first PE protective layer, an aluminum tape located on the inner side of the first PE protective layer, a water blocking tape located on the inner side of the aluminum tape, a plurality of frameworks fixed on the inner side of the water blocking tape and an optical fiber tape fixed on the frameworks, wherein a framework groove is formed in the inner side of the water blocking tape, a reinforcing piece is arranged at the center of the framework groove, a fireproof layer is coated on the outer side of the first PE protective layer, a metal woven mesh is coated on the outer side of the fireproof layer, aramid yarns are coated on the outer side of the metal woven mesh, and a second PE protective layer is coated on the outer side of the aramid yarns.

Specifically, the thickness of the first PE protective layer is a, the thickness of the second PE protective layer is b, and a is larger than or equal to 3 b.

Specifically, a tearing rope is arranged in the water blocking tape.

Specifically, skeleton groove edge is equipped with first protruding sign, the protruding sign of second, and one of them the skeleton is located between first protruding sign, the protruding sign of second.

Specifically, the outer side of the reinforcing piece is coated with an elastic protective layer.

Specifically, the frameworks are distributed on the inner sides of the framework grooves in a circumferential array.

The utility model has the advantages that:

1. the framework type ribbon optical cable of the utility model distributes the framework in the inner side of the framework groove in a circumferential array manner, and the optical fiber ribbons are arranged on the framework, and the optical fiber ribbons have larger gaps and do not interfere with each other;

2. the fireproof layer is coated on the outer side of the first PE protective layer, so that the fireproof performance of the optical cable is improved, the metal woven mesh is coated on the outer side of the fireproof layer, the metal woven mesh has strong flexibility and fracture resistance, and is also rat-proof, and aramid yarns are coated on the outer side of the metal woven mesh, have high corrosion resistance and can protect the optical cable;

3. and a second PE protective layer is added on the outermost side, so that the optical cable has a double protection function.

Drawings

Fig. 1 is a schematic structural diagram of the framework type ribbon cable suitable for the access network of the present invention.

The reference signs are: first PE protective layer 1, aluminium strip 2, water-blocking tape 3, skeleton 4, optic fibre area 5, skeleton groove 6, reinforcement 7, flame retardant coating 8, metal mesh grid 9, aramid yarn 10, second PE protective layer 11, tear rope 12, first protruding sign 13, the protruding sign 14 of second, elastic protection layer 15.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

Example 1

Referring to FIG. 1: the utility model provides a skeleton formula ribbon optical cable suitable for access network, including first PE protective layer 1, be located 1 inboard aluminium strip 2 of first PE protective layer, be located 2 inboard water blocking tape 3 of aluminium strip, fix a plurality of skeletons 4 at 3 inboard water blocking tape, fix optical fiber ribbon 5 on

skeleton

4, 3 inboard water blocking tape is formed with skeleton groove 6, skeleton groove 6 center is equipped with reinforcement 7, 1 outside cladding of first PE protective layer has flame retardant coating 8, the fire behavior of optical cable has been promoted, 8 outside claddings of flame retardant coating have metal mesh grid 9, metal mesh grid 9 has strong pliability and fracture resistance, still have rat proofness, 9 outside claddings of metal mesh grid have aramid yarn 10, aramid yarn 10 has higher corrosion resisting property, can carry out anticorrosion protection to the optical cable, 10 outside claddings of aramid yarn has second PE protective layer 11, make the optical cable have dual protection function.

Preferably, in order to avoid the influence of the excessive thickness of the second PE protective layer 11 on the quality of the optical cable, the thickness of the first PE protective layer 1 is a, the thickness of the second PE protective layer 11 is b, and a is larger than or equal to 3 b.

Preferably, a tearing rope 12 is arranged in the water-blocking tape 3.

Preferably, in order to enable an operator to identify the type of the optical fiber ribbon 5 during wiring and avoid wiring errors of the operator, the edge of the framework groove 6 is provided with a first protruding mark 13 and a second protruding mark 14, and one framework 4 is located between the first protruding mark 13 and the second protruding mark 14.

Preferably, the reinforcement 7 is externally covered with an elastic protection layer 15.

Preferably, the frames 4 are distributed in a circumferential array inside the frame slots 6, so that the optical fiber ribbons 5 have a large gap therebetween without interfering with each other.

The above examples only represent 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The framework type ribbon optical cable suitable for the access network is characterized by comprising a first PE protective layer (1), an aluminum tape (2) located on the inner side of the first PE protective layer (1), a water blocking tape (3) located on the inner side of the aluminum tape (2), a plurality of frameworks (4) fixed on the inner side of the water blocking tape (3), and an optical fiber tape (5) fixed on the frameworks (4), wherein framework grooves (6) are formed in the inner side of the water blocking tape (3), a reinforcing piece (7) is arranged at the center of each framework groove (6), a fireproof layer (8) is coated on the outer side of the first PE protective layer (1), a metal woven mesh (9) is coated on the outer side of the fireproof layer (8), an aramid yarn (10) is coated on the outer side of the metal woven mesh (9), and a second PE protective layer (11) is coated on the outer side of the aramid yarn (10).

2. The framework type optical fiber ribbon cable suitable for the access network as claimed in claim 1, wherein the thickness of the first PE protection layer (1) is a, the thickness of the second PE protection layer (11) is b, and a is greater than or equal to 3 b.

3. A skeletal ribbon cable adapted for an access network as claimed in claim 1, wherein a ripcord (12) is provided within the water-blocking tape (3).

4. A slotted optical fiber ribbonized cable suitable for use in an access network as claimed in claim 1 wherein the edges of the slotted backbone (6) are provided with a first raised indicia (13) and a second raised indicia (14), and wherein one of the backbones (4) is located between the first raised indicia (13) and the second raised indicia (14).

5. A skeletal ribbon cable adapted for use in an access network as claimed in claim 1, wherein the strength members (7) are externally coated with a resilient protective layer (15).

6. A slotted optical fiber ribbon cable suitable for use in an access network according to claim 1, wherein the slotted optical fiber ribbon cable has a circumferential array of the slotted optical fiber ribbons (4) distributed inside the slotted optical fiber ribbon cable (6).