CN201903677U

CN201903677U - Waterproof optical cable

Info

Publication number: CN201903677U
Application number: CN2010206636569U
Authority: CN
Inventors: 潘家乐; 朱旭俊; 赵廷; 常国庆; 苏坚林
Original assignee: JIANGSU TRIGIANT SENSING TECHNOLOGY Co Ltd; JIANGSU TRIGIANT OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: JIANGSU TRIGIANT SENSING TECHNOLOGY Co Ltd; JIANGSU TRIGIANT OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2010-12-16
Filing date: 2010-12-16
Publication date: 2011-07-20
Anticipated expiration: 2020-12-16

Abstract

The utility model discloses a waterproof optical cable, which comprises a plurality of optical fibers. Each optical fiber is nested into one loose casing pipe; waterproof stuffing is filled in the loose casing pipes; the center of a cable core is a metal reinforcing core on which polyethylene is clad; a plurality of loose casing pipes are closely stranded around the central reinforcing core to form a round cable core; waterproof stuffing is filled in gaps in the cable core; a waterproof tape, a polyethylene inner sheath, a double-faced plastic coated steel tape and a polyethylene outer sheath are arranged outside the cable core in sequence; a layer of high-density polyethylene geomembrane is additionally arranged between the waterproof tape and the polyethylene inner sheath; and a layer of waterproof coating is coated outside the polyethylene outer sheath. In the utility model, through additionally arranging a layer of high-density polyethylene geomembrane and a layer of waterproof coating, the moisture resistance, the side compression resistance and the tensile resistance of the optical cable are improved so as to make the optical cable better adapt to severe environments and long-distance laying.

Description

A kind of water proof type optical cable

Technical field

The utility model relates to a kind of cable configuration, specifically is a kind of water proof type optical cable.

Technical field

GYTY53 type optical cable is because have advantages such as security performance is good, use cost is low, installation is simple, transmission range is long, information capacity is big, bandwidth is wide, volume is little, in light weight, obtained promoting widely and using, be widely used in long distance communication, interoffice communication, rugged surroundings etc.

The GYTA53 cable configuration is that optical fiber is inserted in the loose sleeve pipe that high-modulus makes, and fills the waterproof filling material in the loose sleeve pipe.The cable core center is one and covers poly metal strengthening core outward.The pine sleeve pipe is around the stranded conglobate cable core of center strengthening core compactness, the filling material that blocked water of the slit in the cable core.Extrude the layer of polyethylene inner sheath behind the vertical bag of plastic-coated aluminium strip APL, the vertical bag of two-sided plastic-coated steel band back is extruding the tygon oversheath.But because the severity of optical cable working environment, particularly when the laying region was high temperature, high humidity environment, the anti-moisture vapor transmission ability of existing GYTA53 optical cable was still waiting to strengthen, and also there is the problem of lateral pressure resistant and stretch-proof performance deficiency in this model optical cable.

The utility model content

Technical problem to be solved in the utility model provides a kind of anti-moisture vapor transmission, lateral pressure resistant and the good cable configuration of stretch-proof performance.

A kind of water proof type optical cable described in the utility model, it comprises optical fiber, some optical fiber are inserted in the loose sleeve pipe, in loose sleeve pipe, fill the waterproof filling material, the cable core center is one and covers poly metal strengthening core outward, some loose sleeve pipes and gasket for packing are around the stranded conglobate cable core of metal strengthening core compactness, slit in the cable core filling material that blocked water, outside cable core, set gradually waterstop, tygon inner sheath, two-sided plastic-coated steel band and tygon oversheath are set up one deck high-density polyethylene geomembrane between waterstop and tygon inner sheath.

In order further to improve water resistance, outside the tygon oversheath, smear one deck water-repellent paint layer again.

Improvement of the present utility model is to have increased one deck high-density polyethylene geomembrane and water-repellent paint layer.High density polyethylene (HDPE) geomembrane has that infiltration coefficient is low, and density is big, and thickness is even, environmental stress cracking resistance is good, and resistance to chemical corrosion is good, and non-deformability is strong, the adaptive temperature wide ranges, anti-puncture ability is strong, and characteristics such as even are shunk in thermal weld.The optical cable that has increased one deck high-density polyethylene geomembrane effectively raises anti-moisture vapor transmission ability, lateral pressure resistant performance and stretch-proof performance.Anti-moisture vapor transmission ability and moistureproof ability that one deck water-repellent paint effectively raises optical cable have been increased.Can better adapt to rugged surroundings and long apart from laying.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

As shown in Figure 1, water proof type optical cable described in the utility model, its main body comprises multifiber 1, in a loose sleeve pipe 2, be inserted in the optical fiber of varying number as required, fill the waterproof filling material in the pine sleeve pipe 2, the cable core center is one and covers poly metal strengthening core 4 outward, many loose sleeve pipes and gasket for packing 3 are around the stranded conglobate cable core of center strengthening core compactness, slit in the cable core filling material 5 that blocked water, outside cable core, set gradually waterstop 6, tygon inner sheath 7, two-sided plastic-coated steel band 8 and tygon oversheath 9, between waterstop 6 and tygon inner sheath 7, set up one deck high-density polyethylene geomembrane 10, outside tygon oversheath 9, smear one deck water-repellent paint layer 11.

The utility model provides a kind of thinking and implementation method of water proof type optical cable; concrete application approach is a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvement, these improvement also should be considered as protection domain of the present utility model.

Claims

1. water proof type optical cable, it comprises optical fiber (1), some optical fiber are inserted in the loose sleeve pipe (2), in loose sleeve pipe (2), fill the waterproof filling material, the cable core center is one and covers poly metal strengthening core (4) outward, some loose sleeve pipes and gasket for packing (3) are around the stranded conglobate cable core of metal strengthening core compactness, slit in the cable core filling material (5) that blocked water, outside cable core, set gradually waterstop (6), tygon inner sheath (7), two-sided plastic-coated steel band (8) and tygon oversheath (9) is characterized in that: set up one deck high-density polyethylene geomembrane (10) between waterstop (6) and tygon inner sheath (7).

2. water proof type optical cable according to claim 1 is characterized in that: smear one deck water-repellent paint layer (11) outside tygon oversheath (9).