CN212111908U - Pipeline type flat leading-in optical cable - Google Patents

Abstract

The utility model discloses a pipeline formula flat type optical cable of introducing, it includes the oversheath, the inner sheath, two reinforcements, optic fibre, the inner sheath has the flank of two symmetries, the flank includes the plane of bisymmetry, connect through the arcwall face between the two planes, the inner sheath center is located to optic fibre, the cross-section of two reinforcements is the rectangle, two reinforcements are located respectively in the two flanks and along the setting of optic fibre symmetry, the inner sheath is located in the oversheath, form the cavity of two symmetries between inner sheath and the oversheath, two reinforcements are located respectively in the two cavities and along the setting of optic fibre symmetry, the cross-section of reinforcement is the rectangle, the long limit and the plane butt of reinforcement, the long limit of reinforcement sets up with the long limit of reinforcement is perpendicular. The utility model discloses rational in infrastructure, be rectangular reinforcement and reinforcement through setting up the cross-section, on the basis of make full use of optical cable inner space, show the tensile anti bending strength who promotes the optical cable, effectively protect inside optic fibre, promote the performance of optical cable.

Description

Pipeline type flat leading-in optical cable

Technical Field

The utility model relates to an optical cable technical field, in particular to flat type optical cable of introducing of pipeline formula.

Background

In the construction of FTTH, the lead-in optical cable is suitable for equipment interconnection in a machine room, comprehensive wiring systems of various office buildings and business buildings, inter-floor distribution frames and the like. Most of the leading-in optical cables in the prior art are butterfly leading-in optical cables, and the butterfly home-entry optical cables have the characteristics of high bandwidth, high reliability, convenient connection, easy installation, stripping, use, maintenance and the like, and become the optimal leading-in cables for connecting network trunks to users for the last hundred meters.

When the number of cores of the traditional butterfly-shaped lead-in optical cable is more than 8, the problem that the transmission performance is unqualified due to the damage of the optical fiber often occurs in the laying process, for example, the problem that the attenuation of the optical fiber is large due to excessive stretching, bending and the like in the operation process. Therefore, a new optical fiber is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art, the utility model aims to provide a rational in infrastructure, anti pipeline formula flat type introducing optical cable of buckling of tensile. The technical scheme is as follows:

the utility model provides a flat type optical cable of leading in of pipeline formula, its includes oversheath, inner sheath, two reinforcements, optic fibre, the inner sheath has the flank of two symmetries, the flank includes the plane of two symmetries, connects through the arcwall face between the two planes, optic fibre is located the inner sheath center, the cross-section of two reinforcements is the rectangle, two reinforcements are located respectively in the two flanks and are followed the optic fibre symmetry sets up, the inner sheath is located in the oversheath, form the cavity of two symmetries between inner sheath and the oversheath, two reinforcements are located respectively in two cavities and are followed the optic fibre symmetry sets up, the cross-section of reinforcement is the rectangle, the long limit of reinforcement with the plane butt, the long limit of reinforcement with the long limit of reinforcement sets up perpendicularly.

As a further improvement of the utility model, the optical fiber connector further comprises a loose tube, and the loose tube is wrapped on the optical fiber.

As a further improvement of the utility model, the loose tube is filled with the fiber paste.

As a further improvement of the utility model, two the junction of flank forms two and peels off the groove, two peel off the groove and follow the optic fibre symmetry sets up.

As a further improvement of the utility model, the stripping groove is V-shaped.

As a further improvement of the utility model, the utility model also comprises an aluminum strip, the aluminum strip is arranged inside the outer sheath.

As a further improvement of the utility model, the aluminum strip water-blocking device further comprises a water-blocking tape, wherein the water-blocking tape is arranged on the inner side of the aluminum strip.

As a further improvement of the present invention, the number of the cores of the optical fiber is 2n, and n is a positive integer.

As a further improvement of the present invention, the outer sheath is PE.

As a further improvement of the utility model, the reinforcement and the reinforcement are FRP.

The utility model has the advantages that:

the utility model discloses a pipeline formula flat type introducing optical cable is rational in infrastructure, is rectangular reinforcement and reinforcement through setting up the cross-section, on the basis of make full use of optical cable inner space, is showing the tensile anti-bending strength who promotes the optical cable, effectively protects inside optic fibre, promotes the performance of optical cable.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a tube-type flat drop cable according to an embodiment of the present invention.

Description of the labeling: 1. a reinforcement; 2. an optical fiber; 3. fiber paste; 4. loosening the sleeve; 5. a reinforcement; 6. a water blocking tape; 7. an aluminum strip; 8. an outer sheath; 9. an inner sheath.

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.

As shown in fig. 1, the ducted flat drop cable according to the embodiment of the present invention includes an outer sheath 8, an inner sheath 9, two strength members 1, two strength members 5, and an optical fiber 2. The number of cores of the optical fiber 2 is 2n, and n is a positive integer.

Inner sheath 9 has the flank of two symmetries, and the flank includes the plane of two symmetries, connects through the arcwall face between the two planes, and inner sheath 9 center is located to optic fibre 2, and the cross-section of two reinforcements 1 is the rectangle, and two reinforcements 1 are located respectively in the two flanks and set up along optic fibre 2 symmetry.

In oversheath 8 was located to inner sheath 9, form the cavity of two symmetries between inner sheath 9 and the oversheath 8, two reinforcements 5 are located respectively in two cavities and are set up along 2 symmetries of optic fibre, reinforcements 5's cross-section is the rectangle, reinforcements 5's long limit and plane butt, reinforcements 1's long limit sets up with reinforcements 5's long limit is perpendicular, rectangular reinforcements 5 has fully utilized the cavity inner space, can strengthen the radial anti bending and the extrusion ability of optical cable.

In this embodiment, the optical fiber protection device further includes a loose tube 4, the loose tube 4 is wrapped on the optical fiber 2, and the loose tube 4 is filled with the fiber paste 3, so that the optical fiber 2 can be better protected.

In one embodiment, two stripping grooves are formed at the junction of the two side wings of the inner sheath 9, and the two stripping grooves are symmetrically arranged along the optical fiber 2. The easy stripping capability of the optical cable can be increased, and preferably, the stripping groove is V-shaped.

In one embodiment, the aluminum sheath further comprises an aluminum strip 7, and the aluminum strip 7 is arranged inside the outer sheath 8. Through 7 armoring of aluminium strips, the resistance to compression flat ability of having strengthened the optical cable strengthens protection against rodents ability simultaneously.

In one embodiment, the water-blocking tape comprises a water-blocking tape 6, and the water-blocking tape 6 is arranged on the inner side of an aluminum tape 7. The water resistance of the optical cable can be enhanced.

In this embodiment, the outer jacket 8 is PE, the inner jacket 9 is LSZH, and both the reinforcement 5 and the reinforcement 1 are FRP.

The utility model discloses a pipeline formula flat type introducing optical cable is rectangular reinforcement and reinforcement through setting up the cross-section, on the basis of make full use of optical cable inner space, is showing the tensile anti-bending strength who promotes the optical cable, effectively protects inside optic fibre, promotes the performance of optical cable.

The above 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 (10)

1. The utility model provides a flat type optical cable of introducing of pipeline formula, its characterized in that, includes oversheath, inner sheath, two reinforcements, optic fibre, the inner sheath has the flank of two symmetries, the flank includes the plane of two symmetries, connects through the arcwall face between the two planes, optic fibre is located the inner sheath center, the cross-section of two reinforcements is the rectangle, two reinforcements are located respectively in the two flanks and are followed the optic fibre symmetry sets up, the inner sheath is located in the oversheath, form the cavity of two symmetries between inner sheath and the oversheath, two reinforcements are located respectively in two cavities and are followed the optic fibre symmetry sets up, the cross-section of reinforcement is the rectangle, the long limit of reinforcement with the plane butt, the long limit of reinforcement with the long limit of reinforcement sets up perpendicularly.

2. The ducted, flat drop cable of claim 1, further comprising a loose tube, said loose tube surrounding said optical fiber.

3. The ducted flat drop cable of claim 2, wherein the loose tube is filled with a fiber paste.

4. The ducted flat drop cable of claim 1, wherein the junction of said side wings forms two stripping grooves, said two stripping grooves being symmetrically disposed along said optical fiber.

5. The ducted flat drop cable of claim 4, wherein said stripping groove is V-shaped.

6. The ducted flat drop cable of claim 1, further comprising an aluminum strip disposed inside the outer jacket.

7. The ducted flat drop cable of claim 6, further comprising a water-blocking tape disposed inside the aluminum tape.

8. The ducted flat drop cable of claim 1, wherein the number of cores of said optical fiber is 2n, n being a positive integer.

9. The ducted flat drop cable of claim 1, wherein said outer jacket is PE.

10. The ducted, flat drop cable of claim 1, wherein said strength members and strength members are FRP.

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