CN102023358A - Rubber-insulated wire optical cable for leading in - Google Patents
Rubber-insulated wire optical cable for leading in Download PDFInfo
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- CN102023358A CN102023358A CN 201110022316 CN201110022316A CN102023358A CN 102023358 A CN102023358 A CN 102023358A CN 201110022316 CN201110022316 CN 201110022316 CN 201110022316 A CN201110022316 A CN 201110022316A CN 102023358 A CN102023358 A CN 102023358A
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Abstract
The invention relates to a rubber-insulated wire optical cable for leading in, comprising an outer sheath and a cable core, wherein the cable core comprises at least one rubber-insulated wire unit; the rubber-insulated wire unit comprises an optical fiber unit, two internally-reinforced pieces and an inner sheath, wherein two internally-reinforced pieces are symmetrically arranged on two sides of the optical fiber unit along the length direction of the optical fiber unit; the inner sheath is coated outside the optical fiber unit and the internally-reinforced pieces; and an outer sheath is coated outside the cable core. The rubber-insulated wire optical cable is characterized by further comprising at least one pair of external reinforcing pieces which are arranged in the outer sheath along the length direction of the optical fiber unit, the plane on which the centre line of each pair of external reinforcing pieces is positioned is parallel to the plane on which the centre line of the internally-reinforced pieces of each rubber-insulated wire unit is positioned. The rubber-insulated wire optical cable in the structure can enable the bending directions of the outer sheath and the cable core to be the same, and the whole rubber-insulated wire optical cable has the consistent bending direction so as to avoid the situations of damaged rubber-insulated wire unit and broken optical fiber because the rubber-insulated wire optical cable is bent.
Description
Technical field
The present invention relates to a kind of optical cable, relate in particular to a kind of introducing covered wire cable.
Background technology
High speed development along with the optical-fiber network information age, covered wire cable is widely used in the unique texture pattern of its good looking appearance, easy construction that Fiber to the home (FTTH) and the wireless base station zooms out in the network, for reducing the jointing of optical fiber when outdoor environment enters indoor environment, improve the convenience of network reliability and maintenance, developed the introducing dual-purpose covered wire cable of indoor and outdoor of all kinds of introducing modes.Introducing generally includes cable core and oversheath with covered wire cable, cable core is formed by stacking by one or more rectangle rubber-insulated wire unit, the rubber-insulated wire unit comprises fiber unit, two interior reinforcements and inner sheath, two interior reinforcements are symmetrically set in the both sides of fiber unit, and inner sheath is coated on the outside of fiber unit and interior reinforcement; It is circular that the cross section of oversheath is generally, and oversheath is coated on the outside of cable core.Interior reinforcement adopts glass fiber reinforced plastics rod (FRP rod), aromatic polyamide fiber reinforced plastics rod (KFRP rod) or steel wire usually, makes the rubber-insulated wire unit have certain resistance to tension; Inner sheath adopts the fire retardant jacket material, has anti-flammability, is suitable for indoor use; Oversheath can adopt common polythene (PE) protective cover material, also can adopt flame-retardant sheath material.In the rubber-insulated wire unit, the center line of the center line of fiber unit and the interior reinforcement of both sides is in the same plane, when the external force on acting on the rubber-insulated wire unit has perpendicular to the component on this plane, this plane is under external force along certain direction bending, and corresponding bending is also done in whole piece rubber-insulated wire unit under the effect of external force.In order to make the rubber-insulated wire unit can be more smooth towards certain fixed-direction bending, the protection fiber unit, the xsect of inner sheath is set to rectangle usually, the longer sides of rectangle and above-mentioned plane parallel.In addition, expose fiber unit, be provided with tearing port at the center of two longer sides of the xsect of inner sheath for the ease of strip off rubber-insulated wire unit.
Above-mentioned covered wire cable is when the construction wiring, even in the bending radius scope of covered wire cable, carry out bending, the phenomenon that the damage of rubber-insulated wire unit, fibercuts also usually occur, cause many inconvenience and loss to construction, through long term studies, discovery is damaged, major cause of failure is in the construction wiring process, inconsistent the causing of bending direction of the oversheath and the cable core of covered wire cable often occur.
Summary of the invention
Technical matters to be solved by this invention provides a kind of introducing covered wire cable, and the phenomenon of the damage of rubber-insulated wire unit, internal optical fiber fracture takes place easily because of the bending direction of oversheath and cable core is inconsistent when this introducing can prevent to construct wiring with covered wire cable.The technical scheme that adopts is as follows:
A kind of introducing comprises oversheath and cable core with covered wire cable, cable core comprises at least one rubber-insulated wire unit, the rubber-insulated wire unit comprises fiber unit, two interior reinforcements and inner sheath, two interior reinforcements are symmetrically set in the both sides of fiber unit along the length direction of fiber unit, inner sheath is coated on the outside of fiber unit and interior reinforcement, oversheath is coated on the outside of cable core, it is characterized in that: also comprise at least one pair of outer reinforcement, outer reinforcement is located in the oversheath along the length direction of fiber unit; Each is to the plane parallel at the interior reinforcement center line place of the plane at outer reinforcement center line place and each root rubber-insulated wire unit.
Interior reinforcement and outer reinforcement all can adopt glass fiber reinforced plastics rod (FRP rod), aromatic polyamide fiber reinforced plastics rod (KFRP rod) or steel wire.Inner sheath adopts fire proofing to make, and has anti-flammability, is fit to indoor use; Expose fiber unit for the ease of strip off rubber-insulated wire unit, be provided with tearing port at the center of two longer sides of the xsect of inner sheath.Oversheath can adopt common polythene (PE) protective cover material, also can adopt flame-retardant sheath material.Fiber unit can be one or two optical fiber, or comprises the fibre ribbon of multifiber.Cable core can comprise a rubber-insulated wire unit, and the rubber-insulated wire unit is in the center of covered wire cable; Cable core also can be to be formed by stacking by many rubber-insulated wire unit, and the plane at reinforcement place is parallel to each other in each root rubber-insulated wire unit, and it is wide that core is counted scope.G.652 optical fiber can adopt or optical fiber G.657.
At least one pair of outer reinforcement is set in oversheath, each is to the plane parallel at the interior reinforcement center line place of the plane at outer reinforcement center line place and each root rubber-insulated wire unit, make oversheath identical with the bending direction of cable core like this, the integral body of covered wire cable has consistent bending direction.In the construction wiring process, when covered wire cable is carried out bending,, thereby prevent that covered wire cable is because of the crooked situation that the damage of rubber-insulated wire unit, internal optical fiber fracture take place because oversheath is consistent with the bending direction of cable core.Covered wire cable of the present invention both can also can be in outdoor application in indoor use, use optical cable as introducing, and when from outdoor introducing when indoor, need peel off oversheath, exposes the cable core unit, can introduce indoor use, does not need to continue in addition easy construction.In addition, when G.657 this covered wire cable adopted optical fiber, to bend-insensitive, bending radius reached 10mm, does not influence the Optical Fiber Transmission performance, needing to be particularly suitable for the corner bending use of registering one's residence.
As preferred version of the present invention, it is characterized in that: in the same xsect of covered wire cable, each root outer reinforcement center line to the angle between the line of the line of cable core center line and each internal reinforcement center line less than 15 °.By in the same xsect of covered wire cable, each root outer reinforcement center line is limited in 15 ° to the angle between the line of the line of cable core center line and each internal reinforcement center line, make each not only be on the oversheath but also press close to the plane at each internal reinforcement center line place outer reinforcement, thereby make oversheath more consistent, prevent that further covered wire cable is because of the crooked phenomenon that the damage of rubber-insulated wire unit, fibercuts take place with the bending direction of cable core.
As the further preferred version of the present invention, it is characterized in that: described angle is less than 10 °.Further each root outer reinforcement center line is limited in 10 ° to the angle between the line of the line of cable core center line and each internal reinforcement center line, makes oversheath more consistent with the bending direction of cable core.
As the present invention's preferred version further, it is characterized in that: the quantity of described outer reinforcement is a pair of, and two outer reinforcement center lines and cable core center line are in the same plane.When cable core has only a rubber-insulated wire unit, the rubber-insulated wire unit is in the center of optical cable, the plane overlaid at the plane at two outer reinforcement center line places and interior reinforcement center line place, and two outer reinforcement center lines and cable core center line are in the same plane; When cable core is formed by stacking by many rubber-insulated wire unit, the plane parallel at the plane at two outer reinforcement center line places and each internal reinforcement center line place, and two outer reinforcement center lines and cable core center line are in the same plane; Make that like this bending direction of oversheath and cable core is in full accord, prevent that further covered wire cable is because of the crooked phenomenon that the damage of rubber-insulated wire unit, fibercuts take place.
As the further another kind of preferred version of the present invention, it is characterized in that: the quantity of described outer reinforcement is two pairs, and each is equal to the distance of cable core center line to the plane at outer reinforcement center line place.When cable core had only a rubber-insulated wire unit, the rubber-insulated wire unit was in the center of optical cable, the both sides on plane, reinforcement center line place in two pairs of outer reinforcement are symmetrically distributed in; When cable core is formed by stacking by many rubber-insulated wire unit, each is to outer reinforcement the center line plane at place and the plane parallel at each internal reinforcement center line place separately, and each equates the plane at outer reinforcement center line place distance to the cable core center line; Make oversheath more consistent like this, prevent that further covered wire cable is because of the crooked phenomenon that the damage of rubber-insulated wire unit, fibercuts take place with the bending direction of cable core.Certainly, outer reinforcement also can be 4 pairs, 6 equities.
As the further another kind of preferred version of the present invention, it is characterized in that: the quantity of described outer reinforcement is three pairs, wherein a pair of outer reinforcement center line and cable core center line are in the same plane, and other two pairs of outer reinforcement center lines plane at place separately equate to the distance of cable core center line.By three pairs of outer reinforcement are set like this, both guaranteed the consistent of oversheath and cable core bending direction, prevent that covered wire cable from because of the crooked phenomenon that the damage of rubber-insulated wire unit, fibercuts take place, making covered wire cable have better stretch-proof performance again.Certainly, outer reinforcement also can be 5 pairs, 7 equities.
As preferred version of the present invention, it is characterized in that: comprise that also waterstop, waterstop be located between oversheath and the cable core.The vertical waterstop that is wrapped in outside, cable core unit makes covered wire cable have water resistance longitudinally.
As the further preferred version of the present invention, it is characterized in that: comprise that also metal tape, metal tape are coated on the outside of waterstop.Metal tape is set, makes covered wire cable have the performance of better stretch-proof and lateral pressure resistant, make covered wire cable be not easy to be broken or damage by pressure.Metal tape can be steel band or aluminium strip.
Above-mentioned waterstop, metal tape also play the effect as the protective seam of cable core.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment for the present invention one
Fig. 2 is the structural representation of the preferred embodiment for the present invention two
Fig. 3 is the structural representation of the preferred embodiment for the present invention three
Fig. 4 is the structural representation of the preferred embodiment for the present invention four
Fig. 5 is each to the synoptic diagram of the plane parallel at the plane at outer reinforcement place and interior reinforcement place
Embodiment
Be described further below in conjunction with accompanying drawing and preferred implementation of the present invention.
Embodiment one
With shown in Figure 5, this introducing comprises oversheath 1, cable core and a pair of outer reinforcement 2 with covered wire cable as shown in Figure 1; Cable core comprises a rubber-insulated wire unit, the rubber-insulated wire unit comprises fiber unit 3, two interior reinforcements 4 and inner sheaths 5, two interior reinforcements 4 are symmetrically set in the both sides of fiber unit 3 along the length direction of fiber unit 3, and inner sheath 5 is coated on the outside of fiber unit 3 and interior reinforcement 4; Center at two longer sides of the xsect of inner sheath 5 is provided with tearing port 20; Oversheath 1 is coated on the outside of cable core; Two outer reinforcement 2 are located in the oversheath 1 along the length direction of fiber unit; In same xsect, the plane 7 at two outer reinforcement 2 center lines 6 places and plane 9 overlaids at interior reinforcement 4 center lines 8 places of rubber-insulated wire unit.
Two outer reinforcement 2 center lines 6 are in the same plane with cable core center line 10, like this each root outer reinforcement 2 center line 6 to the line of the line of cable core center line 10 and each internal reinforcement 4 center line 8 on same straight line, so satisfy between the two angle less than 10 ° requirement.
This introducing also comprises waterstop 11 with covered wire cable, and waterstop 11 is located between oversheath 1 and the cable core.
This introducing also comprises metal tape 12 with covered wire cable, and metal tape 12 is coated on the outside of waterstop 11.
Embodiment two
As Fig. 2 and shown in Figure 5, under others and all identical situation of embodiment one, outer reinforcement 2 is two pairs, and each plane 7 to outer reinforcement 2 center lines 6 places parallels with the plane 9 at each internal reinforcement 4 center lines 8 place; The both sides on plane, reinforcement 4 center lines, 8 place 9 in two pairs of outer reinforcement 2 are symmetrically distributed in; In same xsect, each root outer reinforcement 2 center lines 6 to the angle a between the line 14 of the line 13 of cable core center line 10 and each internal reinforcement 4 center line 8 less than 10 °.
Embodiment three
As Fig. 3 and shown in Figure 5, under others and all identical situation of embodiment one, cable core is formed by stacking by two rubber-insulated wire unit, and the plane at reinforcement 4 places is parallel to each other in each root rubber-insulated wire unit; The plane 7 at two outer reinforcement 2 center lines 6 places parallels with the plane 9 at interior reinforcement 4 center lines 8 places of each root rubber-insulated wire unit; In same xsect, each root outer reinforcement 2 center line 6 is parallel to each other to the line 13 of cable core center line 10 and the line 14 of each internal reinforcement 4 center line 8, and promptly the angle between line 13 and the line 14 is less than 10 °.
Embodiment four
As shown in Figure 4 and Figure 5, under others and all identical situation of embodiment one, cable core is formed by stacking by two rubber-insulated wire unit, and the plane at reinforcement 4 places is parallel to each other in each root rubber-insulated wire unit; Outer reinforcement 2 is three pairs, and each plane 7 to outer reinforcement 2 center lines 6 places parallels with the plane 9 at each internal reinforcement 4 center lines 8 place; Wherein a pair of outer reinforcement 2 center lines 6 are in the same plane with cable core center line 10; The plane 7 at other two pairs of outer reinforcement, 2 center lines 6 places parallels with the plane 9 at interior reinforcement 4 center lines 8 places of each root rubber-insulated wire unit, and these two pairs of outer reinforcement, 2 center lines 6 equate to the distance of cable core center line 10 on the plane at place separately; In same xsect, each root outer reinforcement 2 center lines 6 to the angle a between the line 14 of the line 13 of cable core center line 10 and each internal reinforcement 4 center line 8 less than 10 °.
Reinforcement and outer reinforcement all can adopt glass fiber reinforced plastics rod (FRP rod), aromatic polyamide fiber reinforced plastics rod (KFRP rod) or steel wire in above-mentioned.Inner sheath adopts fire proofing to make, and has anti-flammability, is fit to indoor use.Oversheath can adopt common polythene (PE) protective cover material, also can adopt flame-retardant sheath material.Fiber unit can be one or two optical fiber, or comprises the fibre ribbon of multifiber.G.652 optical fiber can adopt or optical fiber G.657.
In other embodiments, cable core can be formed by stacking by three, four or more rubber-insulated wire unit, and the plane at reinforcement place is parallel to each other in each root rubber-insulated wire unit.
In other embodiments, outer reinforcement can be four pairs, five pairs or how right.
Claims (8)
1. an introducing comprises oversheath and cable core with covered wire cable, cable core comprises at least one rubber-insulated wire unit, the rubber-insulated wire unit comprises fiber unit, two interior reinforcements and inner sheath, two interior reinforcements are symmetrically set in the both sides of fiber unit along the length direction of fiber unit, inner sheath is coated on the outside of fiber unit and interior reinforcement, oversheath is coated on the outside of cable core, it is characterized in that: also comprise at least one pair of outer reinforcement, outer reinforcement is located in the oversheath along the length direction of fiber unit; Each is to the plane parallel at the interior reinforcement center line place of the plane at outer reinforcement center line place and each root rubber-insulated wire unit.
2. covered wire cable as claimed in claim 1 is characterized in that: in the same xsect of covered wire cable, each root outer reinforcement center line to the angle between the line of the line of cable core center line and each internal reinforcement center line less than 15 °.
3. covered wire cable as claimed in claim 2 is characterized in that: described angle is less than 10 °.
4. as claim 1 or 2 or 3 described covered wire cables, it is characterized in that: the quantity of described outer reinforcement is a pair of, and two outer reinforcement center lines and cable core center line are in the same plane.
5. as claim 1 or 2 or 3 described covered wire cables, it is characterized in that: the quantity of described outer reinforcement is two pairs, and each is equal to the distance of cable core center line to the plane at outer reinforcement center line place.
6. as claim 1 or 2 or 3 described covered wire cables, it is characterized in that: the quantity of described outer reinforcement is three pairs, wherein a pair of outer reinforcement center line and cable core center line are in the same plane, and other two pairs of outer reinforcement center lines plane at place separately equate to the distance of cable core center line.
7. as claim 1 or 2 or 3 described covered wire cables, it is characterized in that: comprise that also waterstop, waterstop be located between oversheath and the cable core.
8. covered wire cable as claimed in claim 7 is characterized in that: comprise that also metal tape, metal tape are coated on the outside of waterstop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100223167A CN102023358B (en) | 2011-01-20 | 2011-01-20 | Rubber-insulated wire optical cable for leading in |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100223167A CN102023358B (en) | 2011-01-20 | 2011-01-20 | Rubber-insulated wire optical cable for leading in |
Publications (2)
| Publication Number | Publication Date |
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| CN102023358A true CN102023358A (en) | 2011-04-20 |
| CN102023358B CN102023358B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100223167A Active CN102023358B (en) | 2011-01-20 | 2011-01-20 | Rubber-insulated wire optical cable for leading in |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181656A (en) * | 2014-08-29 | 2014-12-03 | 长飞光纤光缆股份有限公司 | Full-dry type full-medium optical fiber ribbon optical cable and manufacturing method thereof |
| CN105044867A (en) * | 2015-08-12 | 2015-11-11 | 国网山东省电力公司济南供电公司 | Self-supporting 8-core rubber-insulated wire optical cable |
| CN106019518A (en) * | 2016-08-15 | 2016-10-12 | 河南省通信电缆有限公司 | Insect-bite-preventing rubber-insulated wire cable |
| CN110908056A (en) * | 2019-12-28 | 2020-03-24 | 江苏亨通光电股份有限公司 | High-low temperature resistant remote optical cable and manufacturing process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110908056A (en) * | 2019-12-28 | 2020-03-24 | 江苏亨通光电股份有限公司 | High-low temperature resistant remote optical cable and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
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| CN102023358B (en) | 2012-01-18 |
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