CN111007608A

CN111007608A - Anti-collision and anti-impact optical cable

Info

Publication number: CN111007608A
Application number: CN201911277828.0A
Authority: CN
Inventors: 吉松松
Original assignee: Nanjing Wasin Fujikura Optical Communication Ltd
Current assignee: Nanjing Wasin Fujikura Optical Communication Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-04-14

Abstract

The invention belongs to the technical field of optical cables, and particularly relates to an anti-collision and anti-impact optical cable which comprises a plurality of colored optical fibers, wherein TPU tight sleeves are arranged outside the plurality of colored optical fibers, DuPont Kevlar is arranged outside the TPU tight sleeves, a first D3O cushioning layer is arranged outside the DuPont Kevlar, a TPU polyurethane elastomer rubber honeycomb cushioning layer is arranged outside a first D3O cushioning layer, a second D3O cushioning layer is arranged outside the TPU polyurethane elastomer rubber honeycomb cushioning layer, and a TPE wear-resistant outer sheath is arranged outside a second D3O cushioning layer; compared with the traditional optical cable which uses materials such as aluminum strips and steel strips to protect the optical cable from being damaged easily when being impacted, the optical cable has heavy metal material weight and limited protection capability, the optical cable innovatively uses a scientific and technological leading-edge material D3O non-Newtonian fluid substance which is strong when meeting the strong, and the double-layer D30 shock absorption layer ensures that optical fiber elements are not damaged.

Description

Anti-collision and anti-impact optical cable

Technical Field

The invention relates to the technical field of optical cables, in particular to an anti-collision and anti-impact optical cable.

Background

The optical cable is widely used for signal transmission of various departments such as telecommunication, electric power, broadcasting and the like, and gradually becomes a main body of a future communication network, along with rapid development of cities in recent years, asphalt roads are all in four directions, high-rise buildings and buildings are pulled out, a lot of projects need to dig three feet in the city construction, and at present, the optical cable is easily dug and broken by misoperation of constructors in the aspects of road construction and the like, so that great economic loss is caused.

In order to solve the problem, an anti-collision and anti-impact optical cable is provided in the application. The anti-collision and anti-impact optical cable has impact resistance which is hundreds of times higher than that of a navigation mark, can effectively prevent workers of construction teams from damaging the optical cable during excavation, and reduces the probability of communication obstruction caused by broken optical cable.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides an anti-collision and anti-impact optical cable which has impact resistance more than a hundred times of that of a navigation mark, can effectively prevent workers of construction teams from damaging the optical cable during excavation, and has the characteristic of reducing the occurrence probability of communication obstruction caused by the broken optical cable.

(II) technical scheme

In order to solve the problems, the invention provides an anti-collision and anti-impact optical cable which comprises a plurality of colored optical fibers, wherein TPU tight sleeves are arranged outside the plurality of colored optical fibers, DuPont Kevlar is arranged outside the TPU tight sleeves, a first D3O shock absorption layer is arranged outside the DuPont Kevlar, a TPU polyurethane elastomer rubber honeycomb shock absorption layer is arranged outside a first D3O shock absorption layer, a second D3O shock absorption layer is arranged outside the TPU polyurethane elastomer rubber honeycomb shock absorption layer, and a TPE wear-resistant outer sheath 3O is arranged outside the second D3O shock absorption layer.

Preferably, the inner wall and the outer wall of the first D3O shock absorption layer are both provided with a first jacket, the thickness of the first jacket is 1-2mm, and the first jacket is made of TPU.

Preferably, a second jacket is arranged on the inner wall of the second D3O shock absorption layer, the thickness of the second jacket is 1-1.5mm, and the second jacket is made of TPU.

Preferably, the TPU polyurethane elastomer rubber honeycomb cushioning layer comprises a plurality of tubular TPU polyurethane elastomer rubbers arranged in an annular array.

Preferably, the thickness of the dupont Kevlar is 2-4 mm.

The technical scheme of the invention has the following beneficial technical effects:

1. most of traditional optical cables are solid structures, PPT or PE and other materials without elasticity are used, and optical fiber elements can be protected only by means of hardness of the materials after impact. The TPU polyurethane elastomer rubber honeycomb shock absorption layer is innovatively used for the optical cable, the honeycomb structure can effectively absorb shock when the shock is applied, and the elastic material can restore the shape.

2. The traditional optical cable uses materials such as aluminum strips and steel strips to protect the optical cable from being damaged easily when being impacted, the weight of metal materials is large, and the protection capability is limited. The optical cable innovatively uses a scientific and technological leading-edge material D3O non-Newtonian fluid substance which is strong when meeting strong, and the double-layer D30 shock-absorbing layer ensures that the optical fiber element is not damaged.

3. The line standard YD/T1258.4-2005 is specified in the multicore indoor optical cable, and the impact weight is 1N. The optical cable uses special materials and structures, can reach the standard of impact weight 100N, and can reach the impact resistance capability which is hundreds times of the industrial standard.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, the anti-collision and impact-resistant optical cable provided by the invention comprises a plurality of colored optical fibers 1, a TPU jacket 2 is arranged outside the plurality of colored optical fibers 1, a dupont kevlar 3 is arranged outside the TPU jacket 2, a first D3O cushioning layer 4 is arranged outside the dupont kevlar 3, a TPU polyurethane elastomer rubber honeycomb cushioning layer 5 is arranged outside the first D3O cushioning layer 4, a second D3O cushioning layer 6 is arranged outside the TPU polyurethane elastomer rubber honeycomb cushioning layer 5, and a TPE wear-resistant outer sheath 7 is arranged outside the second D3O cushioning layer 6.

In this embodiment, it should be noted that the inner wall and the outer wall of the first D3O shock absorption layer 4 are both provided with a first jacket, the thickness of the first jacket is 1-2mm, the first jacket is made of TPU, and the two first jackets block the first D3O shock absorption layer 4, so as to prevent the first D3O shock absorption layer 4 from scattering.

In this embodiment, it should be noted that a second jacket is disposed on an inner wall of the second D3O shock absorption layer 6, the thickness of the second jacket is 1-1.5mm, and the second jacket is made of TPU.

In this embodiment, it should be noted that the TPU polyurethane elastomer rubber honeycomb cushioning layer 5 includes a plurality of tubular TPU polyurethane elastomer rubbers arranged in an annular array.

In this embodiment, it should be noted that the thickness of the dupont kevlar 3 is 2-4 mm.

In the invention, the traditional optical cable is mostly of a solid structure, PPT or PE and other materials without elasticity are used, and the optical fiber element can be protected only by the hardness of the materials after the optical fiber element is impacted. The TPU polyurethane elastomer rubber honeycomb shock absorption layer is innovatively used for the optical cable, the honeycomb structure can effectively absorb shock when the shock is applied, and the elastic material can restore the shape.

The traditional optical cable uses materials such as aluminum strips and steel strips to protect the optical cable from being damaged easily when being impacted, the weight of metal materials is large, and the protection capability is limited. The optical cable innovatively uses a scientific and technological leading-edge material D3O non-Newtonian fluid substance which is strong when meeting strong, and the double-layer D30 shock-absorbing layer ensures that the optical fiber element is not damaged.

The line standard YD/T1258.4-2005 is specified in the multicore indoor optical cable, and the impact weight is 1N. The optical cable uses special materials and structures, can reach the standard of impact weight 100N, and can reach the impact resistance capability which is hundreds times of the industrial standard.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention.

Claims

1. The utility model provides an optical cable that shocks resistance of anticollision, includes a plurality of colored optic fibre (1), its characterized in that, the outside of a plurality of colored optic fibre (1) is provided with the tight cover of TPU (2), the outside of the tight cover of TPU (2) is provided with dupont Kevlar (3), the outside of dupont Kevlar (3) is provided with first D3O bradyseism layer (4), the outside of first D3O bradyseism layer (4) is provided with TPU polyurethane elastomer rubber honeycomb bradyseism layer (5), the outside of TPU polyurethane elastomer rubber honeycomb bradyseism layer (5) is provided with second D3O bradyseism layer (6), the outside of second D3O bradyseism layer (6) is provided with the wear-resisting oversheath of TPE (7).

2. The cable of claim 1, wherein the inner wall and the outer wall of the first D3O shock absorption layer (4) are provided with a first jacket, the thickness of the first jacket is 1-2mm, and the first jacket is made of TPU.

3. The cable of claim 1, wherein a second jacket is arranged on the inner wall of the second D3O shock absorption layer (6), the thickness of the second jacket is 1-1.5mm, and the second jacket is made of TPU.

4. An anti-collision and impact-resistant optical cable according to claim 1, wherein the TPU polyurethane elastomer rubber honeycomb cushioning layer (5) comprises a plurality of tubular TPU polyurethane elastomer rubbers arranged in an annular array.

5. An anti-collision and impact-resistant optical cable according to claim 1, wherein the thickness of the dupont kevlar (3) is 2-4 mm.