CN201716441U - In-house optical cable with small friction force, abrasion resistance and easy tearing - Google Patents

In-house optical cable with small friction force, abrasion resistance and easy tearing Download PDF

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Publication number
CN201716441U
CN201716441U CN2010201709506U CN201020170950U CN201716441U CN 201716441 U CN201716441 U CN 201716441U CN 2010201709506 U CN2010201709506 U CN 2010201709506U CN 201020170950 U CN201020170950 U CN 201020170950U CN 201716441 U CN201716441 U CN 201716441U
Authority
CN
China
Prior art keywords
residence
friction force
registering
optical cable
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010201709506U
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Chinese (zh)
Inventor
卢浩
易子南
吴金良
梁振宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Original Assignee
SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD filed Critical SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD
Priority to CN2010201709506U priority Critical patent/CN201716441U/en
Application granted granted Critical
Publication of CN201716441U publication Critical patent/CN201716441U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an in-house optical cable with small friction force, abrasion resistance and easy tearing, which comprises a cable core, a rip cord and an outer sheath arranged sequentially from inside to outside, wherein the outer sheath comprises a square or circular cross section and enwraps the cable core and the rip cord; the cable core comprises a rectangular or butterfly-shaped cross section, wherein the middle part of the long side is depressed inwards. The rip cord is arranged in the depressed place of the long side of the cable core and positioned between the cable core and the outer sheath. The in-house optical cable adopts the structural design of the rip cord and the outer sheath, thereby increasing the friction of the outer sheath when an optical cable is placed into a house, simultaneously being very convenient to strip off the outer sheath by utilizing the rip cord, and being applicable to indoor wiring and use. The outer surface of the sheath of the in-house optical cable with small friction force, abrasion resistance and easy tearing adopts bumpy particle-shaped structure, thereby reducing the contact surface with other objects and reducing the friction force.

Description

Little and the wear-resisting optical cable of registering one's residence that easily tears of a kind of friction force
[technical field]
The utility model relates to a kind of optical cable, the optical cable of registering one's residence of the little and wear-resisting easily openable of particularly a kind of friction force that is suitable for indoor use.
[background technology]
Along with the growth of information and popularizing of network, as the effective means of high capacity, long Distance Transmission, optical cable has obtained a large amount of application, the direction that Fiber to the home, fiber to the desk is production development.
The present optical cable of registering one's residence generally has only cable core, wear-resisting inadequately easy damage optical fiber.And jacket surface is a flat configuration, and big with other object surface of contact, friction force is big.
[utility model content]
In order to overcome the above-mentioned deficiency of prior art optical cable, be necessary to provide a kind of little wear-resisting optical cable of registering one's residence that easily tears of friction force that is suitable for indoor use.
The utility model solves the problems of the technologies described above provides a kind of friction force the little wear-resisting optical cable of registering one's residence that easily tears, comprise successively the cable core that from inside to outside is provided with, tear rope and oversheath, described oversheath has square or round section, it surrounds described cable core and the described rope of tearing, described cable core has rectangle or the butterfly cross section that middle part, long limit caves inward, and describedly tears that rope is arranged on the long limit recess of described cable core and between described cable core and described oversheath.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, described cable core comprises optical fiber, strengthening core and inner sheath, described inner sheath is filled between described optical fiber, strengthening core and the described oversheath, and described optical fiber and described strengthening core are respectively along the described optical cable longitudinal extension of registering one's residence.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, described optical fiber and described reinforcement are fine one-body molded with described inner sheath.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, described cable core comprises the inner sheath that employing optical fiber, strengthening core and employing halogen-free low-smoke flame retardant material G.657A/B made, described inner sheath is filled between described optical fiber, strengthening core and the described oversheath, and described optical fiber and described strengthening core are respectively along the described optical cable longitudinal extension of registering one's residence.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, the long edge lengths in the rectangle of described cable core or butterfly cross section is 3.1mm, and bond length is 2mm.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, thickness is 0.4mm between the described oversheath surfaces externally and internally.
Little wear-resisting easily the tearing in the optical cable of registering one's residence of a kind of friction force of the utility model, described cable jacket outside surface adopts rough nutty structure, and the surface of contact of minimizing and other objects reduces friction.
Compared to prior art, under acting on when two nylon are torn rope, can tear very easily into two the little wear-resisting oversheath that easily tears the optical cable of registering one's residence of a kind of friction force of the utility model, make described oversheath need can not carry out the stripping of opening of longer distance, make things convenient for the utility model optical cable of registering one's residence when registering one's residence, to remove oversheath by specific purpose tool.
The little wear-resisting inside and outside sheath that the optical cable of registering one's residence adopts halogen-free low-smoke flame retardant material to make that easily tears of a kind of friction force of the utility model has been exempted in the direct inlet chamber of pe sheath of outdoor optical cable and has been caused potential safety hazard.
The little wear-resisting optical cable of registering one's residence that easily tears of a kind of friction force of the utility model adopts G.657A/B optical fiber, meets the requirement of indoor optical fiber wiring, such as the house wiring requirement of environment such as soft, suitable little space, small curvature radius.
The little wear-resisting optical cable of registering one's residence that easily tears of a kind of friction force of the utility model is filled the inner sheath that halogen-free low-smoke flame retardant material is made around the optical fiber, has safety, fire-retardant characteristics, indoorly when fire can not produce toxic gas, and the smog transparency is up to 50%.In addition, outside cable core, increased the oversheath that halogen-free low-smoke flame retardant material is made again, made this optical cable when carrying out house wiring, strengthen the wearing quality of optical cable.Jacket outer surface has continuous convex-concave structure, and the surface of contact of minimizing and other objects reduces friction.
[description of drawings]
Fig. 1 is little, the wear-resisting cross section structure synoptic diagram that easily tears first embodiment of the optical cable of registering one's residence of a kind of friction force of the utility model.
Fig. 2 is the little and wear-resisting cross section structure synoptic diagram that easily tears second embodiment of the optical cable of registering one's residence of a kind of friction force of the utility model.
Fig. 3 is the little and wear-resisting cross section structure synoptic diagram that easily tears the 3rd embodiment of the optical cable of registering one's residence of a kind of friction force of the utility model.
Fig. 4 is the little and wear-resisting cross section structure synoptic diagram that easily tears optical cable the 4th embodiment of registering one's residence of a kind of friction force of the utility model
Fig. 5 is the little and wear-resisting cable core cross-section structural representation that easily tears another better embodiment of the optical cable of registering one's residence of a kind of friction force of the utility model.
[embodiment]
Below in conjunction with diagram the utility model is specifically described.
Seeing also Fig. 1, is the little and wear-resisting cross section structure synoptic diagram that easily tears optical cable first embodiment of registering one's residence of a kind of friction force of the utility model.As shown in Figure 1, the described optical cable 10 of registering one's residence has rectangle or butterfly cross section, and it comprises optical fiber 11, strengthening core 12, inner sheath 13 from inside to outside successively, tears rope 14 and oversheath 15.Wherein optical fiber 11, strengthening core 12 and inner sheath 13 constitute the cable core 100 of the described optical cable 10 of registering one's residence.Described cable core 100 is roughly rectangle or butterfly cross section, and its middle part, long limit has inside depression respectively.Described inner sheath 13 adopts LSZH (Low Smoke Zero Halogen, the low-smoke non-halogen flame-retardant cable material claims LSZH again), meets the standard-required of RoHS.In the present embodiment, described inner sheath 13 adopts halogen-free low-smoke flame retardant material.Described optical fiber 11 and described strengthening core 12 can be one-body molded, utilize the extruding grinding tool once to push the growth limit and have rectangle or the butterfly that caves inward.The long edge lengths of described cable core 100 is about 3 ± 0.2mm, and its bond length is about 2 ± 0.2mm.
In the present embodiment, described cable core 100 comprises two optical fiber 11, and it can adopt the optical fiber G.657A/B that meets the ITU-T standard.Described optical fiber 11 is anti-microbend fibers of DRAKA-BendBrightG.657A/B class that bending radius can reach 15mm and 7.5mm.Described cable core 100 also comprises two strengthening cores 12 that extend longitudinally in the described inner sheath 13, it can be finer wire or aramid fiber reinforcement (KFRP) or the glass fibre reinforcement (FRP) of 0.6mm, not only have superelevation pulling strengrth (〉=1700MPa), and shock-resistant, anti-fracture.
Tear the place that caves inward, rope 14 both sides that are separately positioned on described cable core 100 for described two, and between described inner sheath 13 and oversheath 15.The described rope 14 of tearing adopts nylon material, and its diameter is about 0.6mm.
Described oversheath 15 surfaces externally and internally thickness are approximately 0.4 ± 0.1mm, and it adopts low-smoke halogen-free flame-retardant sheath.Jacket outer surface has continuous convex-concave structure, and the surface of contact of minimizing and other objects reduces friction.Described oversheath 15 has square or circular configuration, and it surrounds described cable core 100 and the described rope 14 of tearing.
Compared to prior art, little and the wear-resisting oversheath that easily tears the optical cable 10 of registering one's residence of a kind of friction force of the utility model 15 is thicker and be square or round section, under when two nylon are torn rope 14, acting on, described oversheath 15 can be torn into two very easily, make described oversheath 15 need can not carry out the stripping of opening of longer distance, make things convenient for the utility model optical cable 10 of registering one's residence when registering one's residence, to remove oversheath 15 by specific purpose tool.Simultaneously, the inner sheath 13 that adopts halogen-free low-smoke flame retardant material to make has been exempted in the direct inlet chamber of pe sheath of outdoor optical cable and has been caused potential safety hazard.A kind of friction force of the utility model is little and wear-resistingly easily tear the requirement that the optical cable 10 of registering one's residence meets the wiring of indoor optical fiber, such as house wiring requirement soft, that be fit to environment such as little space, small curvature radius.Little and the wear-resisting optical cable 10 of registering one's residence that easily tears of a kind of friction force of the utility model also has safety, fire-retardant characteristics, indoorly when fire can not produce toxic gas, and the smog transparency is up to more than 50%, in addition, little and the wear-resisting optical cable 10 of registering one's residence that easily tears of a kind of friction force of the utility model is filled the inner sheath 13 that bittern-free flame-proof material is made around the optical fiber, outside cable core 100, increased oversheath 15 in addition again, made this optical cable when carrying out house wiring, strengthen the wearing quality of optical cable.Seeing also Fig. 2, is the little and wear-resisting cross section structure synoptic diagram that easily tears optical cable second embodiment of registering one's residence of a kind of friction force of the utility model.Described friction force is little and wear-resisting register one's residence optical cable 20 and the described friction force of easily tearing is little and wear-resisting structure of easily tearing the optical cable 10 of registering one's residence is basic identical, its difference is that cable core 200 and oversheath (not indicating) cross section opposite end have circular arc, and perhaps cable core 200 and oversheath are respectively elliptic cross-section.
Seeing also Fig. 3, is the little and wear-resisting cross section structure synoptic diagram that easily tears optical cable the 3rd embodiment of registering one's residence of a kind of friction force of the utility model.Described friction force is little and wear-resisting register one's residence optical cable 30 and the described friction force of easily tearing is little and wear-resisting structure of easily tearing the optical cable 10 of registering one's residence is basic identical, and its difference is that oversheath 35 outside surfaces have concaveconvex structure.Described concaveconvex structure can be continuous concaveconvex structure or partial continuous concaveconvex structure.
Seeing also Fig. 4, is the little and wear-resisting cross section structure synoptic diagram that easily tears optical cable the 4th embodiment of registering one's residence of a kind of friction force of the utility model.Described friction force is little and wear-resisting register one's residence optical cable 40 and the described friction force of easily tearing is little and wear-resisting structure of easily tearing the optical cable 20 of registering one's residence is basic identical, its difference is: the little and wear-resisting optical cable 40 of registering one's residence that easily tears of described friction force comprises oversheath 45, and described oversheath 45 outside surfaces have concaveconvex structure.
Seeing also Fig. 5, is the little and wear-resisting cable core cross-section structural representation that easily tears another better embodiment of the optical cable of registering one's residence of a kind of friction force of the utility model.As shown in Figure 5, cable core 500 comprises optical fiber 51, reinforcement fine 52 and the inner sheath 53 that sets gradually from inside to outside.Described cable core 500 is roughly the rectangle cross section, has in the middle of its two relative long limits to cave inward.The long edge lengths of described cable core 500 is about 3 ± 0.2mm, and bond length is about 2 ± 0.2mm, and jacket outer surface adopts continuous convex-concave structure, and the surface of contact of minimizing and other objects reduces friction.In the change embodiment, described cable core 500 also can have the butterfly cross section.
Cable core 500 and cable core 100 structures are basic identical, and its difference is: inner sheath 53 outside surfaces of cable core 500 comprise a plurality of continuous protruding 531, make described inner sheath 53 outside surfaces have rough graininess.Adopt such concaveconvex structure design, make cable core 500 have the little characteristic of friction force.Described protruding 531 can reach the effect of surface irregularity by the resin component of adjusting inner sheath 53.Jacket outer surface has continuous bulge-structure in the present embodiment, can reduce the surface of contact with other objects, reduces friction.Little and the wear-resisting optical cable of registering one's residence that easily tears of the friction force that described cable core 500 goes for above-mentioned arbitrary embodiment.
The above only is a preferable case study on implementation of the present utility model, not in order to restriction the utility model, all any modifications of being done within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included within the protection domain of the present utility model.

Claims (9)

1. little and wear-resisting optical cable of registering one's residence that easily tears of friction force, it is characterized in that: comprise successively the cable core that from inside to outside is provided with, tear rope and oversheath, described oversheath has square or elliptic cross-section, it surrounds described cable core and the described rope of tearing, described cable core has rectangle or the butterfly cross section that middle part, long limit caves inward, and describedly tears that rope is arranged on the long limit recess of described cable core and between described cable core and described oversheath.
2. the little and wear-resisting optical cable of registering one's residence that easily tears of friction force according to claim 1, it is characterized in that: described cable core comprises optical fiber, strengthening core and inner sheath, described inner sheath is filled between described optical fiber, strengthening core and the described oversheath, and described optical fiber and described strengthening core are respectively along the described optical cable longitudinal extension of registering one's residence.
3. the little and wear-resisting optical cable of registering one's residence that easily tears of friction force according to claim 2, it is characterized in that: described optical fiber and described strengthening core and described inner sheath are one-body molded.
4. the little and wear-resisting optical cable of registering one's residence that easily tears of friction force according to claim 1, it is characterized in that: described cable core comprises the inner sheath that employing optical fiber, strengthening core and employing halogen-free low-smoke flame retardant material G.657A/B made, described inner sheath is filled between described optical fiber, strengthening core and the described oversheath, and described optical fiber and described strengthening core are respectively along the described optical cable longitudinal extension of registering one's residence.
5. the little and wear-resisting optical cable of registering one's residence that easily tears according to the arbitrary described friction force of claim 1-4, it is characterized in that: the long edge lengths in the rectangle of described cable core or butterfly cross section is 3mm, bond length is 2mm.
6. the little and wear-resisting optical cable of registering one's residence that easily tears according to the arbitrary described friction force of claim 1-4, it is characterized in that: thickness is 0.4mm between the described oversheath surfaces externally and internally.
7. the little and wear-resisting optical cable of registering one's residence that easily tears according to the arbitrary described friction force of claim 1-4 is characterized in that: have continuous bulge-structure outside the described cable core.
8. the little and wear-resisting optical cable of registering one's residence that easily tears of friction force according to claim 7, it is characterized in that: described inner sheath surface has concaveconvex structure.
9. the little and wear-resisting optical cable of registering one's residence that easily tears according to the arbitrary described friction force of claim 1-4, it is characterized in that: described oversheath surface has concaveconvex structure.
CN2010201709506U 2010-04-20 2010-04-20 In-house optical cable with small friction force, abrasion resistance and easy tearing Expired - Lifetime CN201716441U (en)

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Application Number Priority Date Filing Date Title
CN2010201709506U CN201716441U (en) 2010-04-20 2010-04-20 In-house optical cable with small friction force, abrasion resistance and easy tearing

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Application Number Priority Date Filing Date Title
CN2010201709506U CN201716441U (en) 2010-04-20 2010-04-20 In-house optical cable with small friction force, abrasion resistance and easy tearing

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104898225A (en) * 2015-05-29 2015-09-09 成都亨通光通信有限公司 Optical cable structure enabling convenience in optical fiber protection in cable stripping process
CN104965275A (en) * 2015-07-16 2015-10-07 常州市武进翔宇电子元器件有限公司 Wearing-resistance home-entrance connected optical cable
CN105190389A (en) * 2013-04-25 2015-12-23 住友电气工业株式会社 Optical fiber cable
CN105938229A (en) * 2016-06-20 2016-09-14 西安西古光通信有限公司 Cicada-repellent butterfly-shaped optical cable for FTTH, and manufacturing method thereof
WO2016179925A1 (en) * 2015-05-12 2016-11-17 江苏中天科技股份有限公司 Low-smoke halogen-free flame-retardant low-friction butterfly-shaped access optical cable
JP2019113619A (en) * 2017-12-21 2019-07-11 株式会社フジクラ Optical fiber cable
CN110673285A (en) * 2019-10-31 2020-01-10 杭州富通通信技术股份有限公司 Invisible optical cable
CN113176643A (en) * 2021-04-26 2021-07-27 长飞光纤光缆股份有限公司 Air-blown anti-termite butterfly-shaped optical cable and manufacturing method thereof
CN115079361A (en) * 2022-07-22 2022-09-20 深圳市特发信息光网科技股份有限公司 Butterfly-shaped leading-in optical cable with square cross section for pipeline

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105190389A (en) * 2013-04-25 2015-12-23 住友电气工业株式会社 Optical fiber cable
WO2016179925A1 (en) * 2015-05-12 2016-11-17 江苏中天科技股份有限公司 Low-smoke halogen-free flame-retardant low-friction butterfly-shaped access optical cable
CN104898225A (en) * 2015-05-29 2015-09-09 成都亨通光通信有限公司 Optical cable structure enabling convenience in optical fiber protection in cable stripping process
CN104965275A (en) * 2015-07-16 2015-10-07 常州市武进翔宇电子元器件有限公司 Wearing-resistance home-entrance connected optical cable
CN105938229A (en) * 2016-06-20 2016-09-14 西安西古光通信有限公司 Cicada-repellent butterfly-shaped optical cable for FTTH, and manufacturing method thereof
JP2019113619A (en) * 2017-12-21 2019-07-11 株式会社フジクラ Optical fiber cable
CN110673285A (en) * 2019-10-31 2020-01-10 杭州富通通信技术股份有限公司 Invisible optical cable
CN113176643A (en) * 2021-04-26 2021-07-27 长飞光纤光缆股份有限公司 Air-blown anti-termite butterfly-shaped optical cable and manufacturing method thereof
CN115079361A (en) * 2022-07-22 2022-09-20 深圳市特发信息光网科技股份有限公司 Butterfly-shaped leading-in optical cable with square cross section for pipeline

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Granted publication date: 20110119

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