CN209803414U

CN209803414U - Optical cable suitable for air-blowing laying

Info

Publication number: CN209803414U
Application number: CN201920417864.1U
Authority: CN
Inventors: 赵秋香; 罗毅
Original assignee: HUIYUAN OPTICAL COMMUNICATION CO Ltd SICHUAN
Current assignee: HUIYUAN OPTICAL COMMUNICATION CO Ltd SICHUAN
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-17
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses an optical cable suitable for air-blowing lays, it includes non-metal reinforcement, optical fiber unit (3), blocks water unit (4), non-metal reinforcing yarn (5) and sheath (7), non-metal reinforcement includes non-metal center pin (1) and non-metal spoke (2), the surface of non-metal center pin (1) is equipped with many non-metal spoke (2), two non-metal spoke (2) form a plurality of cavities, optical fiber unit (3) and block water unit (4) set up in the cavity, non-metal reinforcing yarn (5) are along circumference winding on non-metal spoke (2), sheath (7) set up outside non-metal reinforcing yarn (5). The utility model discloses optical fiber cable external diameter is little, the rigidity is big, tensile resistance to compression, is applicable to the air-blowing and lays.

Description

Optical cable suitable for air-blowing laying

Technical Field

The utility model relates to a technical field of communication optical cable, especially an optical cable suitable for air-blowing lays.

Background

Along with optical cable air-blowing laying mode is more and more common, various optical cable structures suitable for air-blowing have emerged in the market, and fine cream is filled in most of the existing air-blowing optical cable structures, and the fine cream on the optical fiber must be cleaned when construction is continued, so that full-dry optical cable structures suitable for air-blowing laying appear, and in the full-dry optical cable structures, the sleeve pipe of the air-blowing optical cable with a partial central pipe dry structure is easy to break when construction, and when the optical cable is released, the optical cable has strong memory, and the optical cable can be bent before an air-blowing machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming of current full-dry optical cable, provide an optical cable suitable for air-blowing lays.

The purpose of the utility model is realized through the following technical scheme: the utility model provides an optical cable suitable for air-blowing lays, it includes non-metallic reinforcement, optical fiber unit, the unit that blocks water, non-metallic reinforcing yarn and sheath, non-metallic reinforcement includes non-metallic center pin and non-metallic spoke, the surface of non-metallic center pin is equipped with many non-metallic spokes, forms a plurality of cavities between two non-metallic spokes, optical fiber unit and the unit setting that blocks water are in the cavity, non-metallic reinforcing yarn is along circumference winding on non-metallic spoke, the sheath sets up outside non-metallic reinforcing yarn.

Specifically, the non-metal reinforcement is a profiled glass fiber reinforced plastic rod.

Specifically, the number of the cavities formed by the non-metal spokes is 1-6, and the cavities are V-shaped or U-shaped.

specifically, the optical fiber unit is an optical fiber, an optical fiber bundle or a tight-buffered optical fiber.

Specifically, the water blocking unit is water blocking yarn or water blocking powder.

Specifically, the non-metal reinforced yarns are water-blocking yarns, polyester yarns or aramid yarns and are wound on the non-metal spokes at fixed pitches.

Specifically, the winding pitch of the non-metal reinforcing yarns is 10-50 mm.

Specifically, the optical cable further comprises a tearing rope, wherein the tearing rope is arranged between the nonmetal reinforcing yarns and the sheath and arranged along the length direction of the optical cable.

Specifically, the sheath is made of high-density polyethylene or polyamide and has a thickness of 0.15-0.3 mm.

The utility model discloses following technological effect has:

(1) The profiled glass fiber reinforced rod is used as a main component to provide enough tension and rigidity for the optical cable, so that the optical cable has no bending memory when being released;

(2) The optical fiber is arranged in the specific cavity, so that the optical cable is not damaged when being pressed, and the construction and connection are convenient and quick;

(3) The nonmetal reinforcing yarns are wound on the special-shaped glass fiber reinforcing rod, so that the optical fibers are limited and protected on the one hand, the sheath forms special surface grains on the one hand, the optical cable is pushed by more air flow than before when being blown by air, and the blowing distance is increased.

Drawings

Fig. 1 is a schematic structural view of the present invention;

In the figure: 1-nonmetal central shaft, 2-nonmetal spokes, 3-optical fiber unit, 4-water blocking unit, 5-nonmetal reinforcing yarn, 6-tearing rope and 7-sheath.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1, an optical cable suitable for air-blowing lays, it includes non-metal reinforcement, optical fiber unit 3, blocks water unit 4, non-metal reinforcing yarn 5 and sheath 7, non-metal reinforcement includes non-metal center pin 1 and non-metal spoke 2, non-metal center pin 1's surface is equipped with many non-metal spokes 2, forms a plurality of cavities between two non-metal spokes 2, optical fiber unit 3 sets up in the cavity with block water unit 4, non-metal reinforcing yarn 5 along circumference winding on non-metal spoke 2, sheath 7 sets up outside non-metal reinforcing yarn 5.

Further, the nonmetal reinforcing part is a profiled glass fiber reinforced plastic rod, and provides sufficient tension and rigidity for the optical cable.

Furthermore, the number of the cavities formed by the nonmetal spokes 2 is 1-6, the cavities are V-shaped or U-shaped, and the cavities can play a role in protecting the optical cable when the optical cable is pressed, so that the optical cable is prevented from being damaged.

Further, the optical fiber unit 3 is an optical fiber, a fiber bundle or a tight-buffered optical fiber.

Further, the water blocking unit 4 is water blocking yarn or water blocking powder.

Furthermore, the non-metal reinforced yarns 5 are water-blocking yarns, polyester yarns or aramid yarns and are wound on the non-metal spokes 2 at a fixed pitch.

Furthermore, the winding pitch of the non-metal reinforced yarns 5 is 10-50mm, and special grains are formed on the surface of the sheath 7, so that the optical cable is pushed by more air flow when being blown by air, and the air blowing performance is effectively improved.

Further, the optical cable further comprises a tearing rope 6, wherein the tearing rope 6 is arranged between the nonmetal reinforcing yarns 5 and the sheath 7 and is arranged along the length direction of the optical cable.

Further, the material of the sheath 7 is high-density polyethylene or polyamide, the thickness is 0.15-0.3mm, and sufficient rigidity is provided for the whole structure of the optical cable.

the working process of the utility model is as follows: when the non-metal reinforcement is released, at least one optical fiber unit 3 and a water blocking unit 4 are sent into a cavity formed by the non-metal spokes 2 through a guide needle tube by a special positioning device, the optical fiber unit 3 can be a common multi-mode or single-mode optical fiber or other special optical fibers, a layer of non-metal reinforcing yarns 5 are wound on the non-metal spokes 2 according to a fixed pitch, after a tearing rope 6 is pulled flatly, a layer of sheath 7 is finally extruded on the outermost layer, and the sheath 7 is made of high-density polyethylene or polyamide.

the foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. An optical cable suitable for air-blowing laying, characterized in that: it includes nonmetal reinforcement, optical fiber unit (3), blocks water unit (4), nonmetal reinforcing yarn (5) and sheath (7), nonmetal reinforcement includes nonmetal center pin (1) and nonmetal spoke (2), the surface of nonmetal center pin (1) is equipped with many nonmetal spokes (2), forms a plurality of cavities between two nonmetal spokes (2), optical fiber unit (3) and block water unit (4) set up in the cavity, nonmetal reinforcing yarn (5) is along circumference winding on nonmetal spoke (2), sheath (7) sets up outside nonmetal reinforcing yarn (5).

2. An optical cable suitable for air-blown installation according to claim 1, wherein: the non-metal reinforcing part is a profiled glass fiber reinforced plastic rod.

3. An optical cable suitable for air-blown installation according to claim 1, wherein: the number of the cavities formed by the non-metal spokes (2) is 1-6, and the cavities are V-shaped or U-shaped.

4. An optical cable suitable for air-blown installation according to claim 1, wherein: the optical fiber unit (3) is an optical fiber, an optical fiber bundle or a tight-buffered optical fiber.

5. An optical cable suitable for air-blown installation according to claim 1, wherein: the water blocking unit (4) is water blocking yarn or water blocking powder.

6. an optical cable suitable for air-blown installation according to claim 1, wherein: the non-metal reinforced yarns (5) are water-blocking yarns, polyester yarns or aramid yarns and are wound on the non-metal spokes (2) at fixed pitches.

7. An optical cable suitable for air-blowing installation according to claim 1 or 6, wherein: the winding pitch of the non-metal reinforcing yarns (5) is 10-50 mm.

8. An optical cable suitable for air-blown installation according to claim 1, wherein: the optical cable is characterized by further comprising a tearing rope (6), wherein the tearing rope (6) is arranged between the nonmetal reinforcing yarns (5) and the sheath (7) and arranged along the length direction of the optical cable.

9. An optical cable suitable for air-blown installation according to claim 1, wherein: the sheath (7) is made of high-density polyethylene or polyamide and has a thickness of 0.15-0.3 mm.