CN209843350U

CN209843350U - Photoelectric composite lead-in optical cable

Info

Publication number: CN209843350U
Application number: CN201920861677.2U
Authority: CN
Inventors: 周双双; 陈卫东; 张桂林; 张洪雷; 刘蒙; 丛晓红; 王江山; 任建飞; 王杨; 陈宁
Original assignee: WANG ON GROUP Ltd
Current assignee: WANG ON GROUP Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2019-12-24
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a photoelectric composite leading-in optical cable. The method comprises the following steps: the cable comprises four independently arranged cable cores, three independently arranged cable cores, a non-metal central reinforcement and an outer sheath; the optical cable core sequentially comprises an optical fiber, a tight sleeve layer, an aramid yarn reinforcing piece and a low-smoke halogen-free flame-retardant sheath from inside to outside; the cable core comprises a copper conductor and an insulating layer for coating the copper conductor; the non-metal central reinforcement is arranged in the center of the composite cable, and the optical cable cores and the cable cores are tightly distributed around the non-metal central reinforcement; the outer sheath is coated on the outer sides of the optical cable core and the cable core and sequentially comprises a water blocking tape layer and a TPU sheath from inside to outside. The utility model discloses a set up non-metallic center reinforcement, reduce electromagnetic signal interference to through setting up tight jacket layer, LSZH sheath and set up aramid yarn reinforcement between tight jacket layer and LSZH sheath, make optical cable subassembly tensile strength stronger, under the circumstances that does not reduce composite cable's tensile force, reduce the interference to electromagnetic signal.

Description

Photoelectric composite lead-in optical cable

Technical Field

The utility model relates to a photoelectric composite drop optical cable belongs to communication transmission technical field.

Background

The photoelectric composite cable is a transmission line suitable for a broadband access network system, is a novel access mode, integrates optical fibers and transmission copper wires, and can solve the problems of broadband access, equipment power consumption and signal transmission.

The photoelectric composite cable is characterized in that the optical cable and the electric cable are arranged in the outer sheath in a composite mode and are provided with protective layers such as reinforcing parts and waterproof layers, but the optical cable, the electric cable and the reinforcing parts are tightly stirred together, certain electromagnetic signal interference can be caused, and certain influence is caused on signal transmission.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a photoelectric composite introducing optical cable through setting up non-metallic center reinforcement, reduces electromagnetic signal interference to through setting up tight jacket layer, LSZH sheath and set up aramid yarn reinforcement between tight jacket layer and LSZH sheath, make optical cable subassembly tensile strength stronger, thereby under the circumstances that does not reduce composite cable's tensile force, reduce the interference to electromagnetic signal.

The utility model aims at providing a photoelectric composite drop optical cable, include: the cable comprises four independently arranged cable cores, three independently arranged cable cores, a non-metal central reinforcement and an outer sheath; the optical cable core comprises optical fibers, a tight-buffered layer tightly wrapping the optical fibers, a low-smoke halogen-free flame-retardant sheath wrapping the tight-buffered layer and an aramid yarn reinforcement piece arranged between the tight-buffered layer and the low-smoke halogen-free flame-retardant sheath; the cable core comprises a copper conductor and an insulating layer for coating the copper conductor; the non-metal central reinforcing part is arranged in the center of the photoelectric composite leading-in optical cable, and the optical cable cores and the cable cores are tightly arranged around the non-metal central reinforcing part; the outer sheath is coated on the outer sides of the optical cable core and the cable core; the outer sheath comprises a water blocking tape layer and a thermoplastic polyurethane elastomer rubber sheath from inside to outside in sequence.

Furthermore, a tearing rope is arranged on the inner side of the outer sheath, a first stress notch matched with the tearing rope is arranged on the water blocking tape layer, and a second stress notch matched with the tearing rope is arranged on the thermoplastic polyurethane elastomer rubber sheath.

Furthermore, the nonmetal central reinforcing member is an aramid fiber reinforced optical cable reinforcing core.

Further, the optical fiber is a colored optical fiber.

Further, the insulating layer is prepared from polyethylene, polyvinyl chloride, chlorosulfonated polyethylene or polytetrafluoroethylene materials.

Furthermore, the outer diameter of the optical cable core is 1.8-2.2 mm.

Further, the outer diameter of the cable core is 2.4-2.8 mm.

Furthermore, the inner side of the water blocking tape layer also comprises a flame retardant layer.

The utility model has the advantages that:

the utility model discloses a photoelectric composite introducing optical cable through setting up non-metallic center reinforcement, reduces electromagnetic signal interference to through setting up tight jacket layer, LSZH sheath and set up aramid yarn reinforcement between tight jacket layer and LSZH sheath, make optical cable subassembly tensile strength stronger, thereby under the circumstances that does not reduce the tensile force of composite cable, reduce the interference to electromagnetic signal.

Drawings

Fig. 1 is a schematic structural view of the photoelectric composite drop cable of the present invention.

The optical fiber cable comprises 1, optical fibers, 2, a tight-sleeved layer, 3, an aramid yarn reinforcing piece, 4, an LSZH sheath (low-smoke halogen-free flame-retardant sheath), 5, a copper conductor, 6, an insulating layer, 7, a nonmetal center reinforcing piece, 8, a water blocking belt layer, 9, a TPU (thermoplastic polyurethane elastomer) outer sheath, 10, a tearing rope, 11, a first stress notch, 12 and a second stress notch.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example 1:

with reference to fig. 1, the utility model discloses a photoelectric composite drop cable, include: four independently arranged optical cable cores, three independently arranged cable cores, a non-metal central reinforcement 7 and an outer sheath; the optical cable core comprises an optical fiber 1, a tight-buffered layer 2 tightly wrapping the optical fiber 1, a low-smoke halogen-free flame-retardant sheath 4 wrapping the tight-buffered layer 2, and an aramid yarn reinforcement 3 arranged between the tight-buffered layer 2 and the low-smoke halogen-free flame-retardant sheath 4; the cable core comprises a copper conductor 5 and an insulating layer 6 for coating the copper conductor 5; the non-metal central reinforcement 7 is arranged in the center of the photoelectric composite lead-in optical cable, and the optical cable cores and the cable cores are tightly arranged around the non-metal central reinforcement 7; the outer sheath is coated on the outer sides of the optical cable core and the cable core; the outer sheath comprises a water blocking tape layer 8 and a thermoplastic polyurethane elastomer rubber sheath 9 from inside to outside in sequence.

The utility model discloses an oversheath inboard is equipped with tears rope 10, is provided with on the water-blocking tape layer 8 and tears the first stress breach 11 of rope 10 complex, is equipped with on the thermoplastic polyurethane elastomer rubber sheath 9 and tears 10 complex second stress breach 12 of rope.

The utility model discloses in, nonmetal central reinforcement is aramid fiber reinforcing optical cable and strengthens the core, and optic fibre is painted optic fibre, and the insulating layer is polyethylene, polyvinyl chloride, chlorosulfonated polyethylene or polytetrafluoroethylene material preparation and obtains. The outer diameter of the optical cable core is 1.8-2.2 mm, and the outer diameter of the cable core is 2.4-2.8 mm.

The utility model discloses a band layer inboard that blocks water still includes fire-retardant layer.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. An opto-electrical composite drop cable, comprising: the cable comprises four independently arranged cable cores, three independently arranged cable cores, a non-metal central reinforcement and an outer sheath; the optical cable core comprises optical fibers, a tight-buffered layer tightly wrapping the optical fibers, a low-smoke halogen-free flame-retardant sheath wrapping the tight-buffered layer and an aramid yarn reinforcement piece arranged between the tight-buffered layer and the low-smoke halogen-free flame-retardant sheath; the cable core comprises a copper conductor and an insulating layer for coating the copper conductor; the non-metal central reinforcing part is arranged in the center of the photoelectric composite leading-in optical cable, and the optical cable cores and the cable cores are tightly arranged around the non-metal central reinforcing part; the outer sheath is coated on the outer sides of the optical cable core and the cable core; the outer sheath comprises a water blocking tape layer and a thermoplastic polyurethane elastomer rubber sheath from inside to outside in sequence.

2. The optical-electrical composite drop cable according to claim 1, wherein a tear cord is disposed inside the outer sheath, the water blocking tape layer is provided with a first stress notch cooperating with the tear cord, and the thermoplastic polyurethane elastomer rubber sheath is provided with a second stress notch cooperating with the tear cord.

3. The optoelectrical composite drop cable of claim 1, wherein the non-metallic central strength member is an aramid fiber reinforced cable strength member.

4. The optoelectrical composite drop cable of claim 1, wherein the optical fiber is a colored optical fiber.

5. The photoelectric composite lead-in cable according to claim 1, wherein the insulating layer is made of polyethylene, polyvinyl chloride, chlorosulfonated polyethylene or polytetrafluoroethylene.

6. The photoelectric composite drop cable of claim 1, wherein the outer diameter of the cable core is 1.8-2.2 mm.

7. The photoelectric composite drop cable according to claim 1, wherein the outer diameter of the cable core is 2.4-2.8 mm.

8. The optoelectrical composite drop cable of claim 1, wherein the water blocking tape layer further comprises a flame retardant layer on the inside thereof.