CN103676053A - Double-core optical cable - Google Patents
Double-core optical cable Download PDFInfo
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- CN103676053A CN103676053A CN201310658056.1A CN201310658056A CN103676053A CN 103676053 A CN103676053 A CN 103676053A CN 201310658056 A CN201310658056 A CN 201310658056A CN 103676053 A CN103676053 A CN 103676053A
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- optical fiber
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Abstract
The invention relates to a double-core optical cable. The double-core optical cable comprises a sheath, two optical fibers are arranged in the sheath, and a gap is formed between the two optical fibers. Due to the fact that the gap is formed between the two optical fibers, both the optical fibers are respectively coated by the sheath, after the two optical fibers are separated, both the optical fibers are still coated by the sheath and not exposed outside, and both the optical fibers can be effectively protected. The problem that after an existing double-core optical cable is torn open, optical fibers can not be effectively protected is solved.
Description
Technical field
The present invention relates to a kind of twin fiber cable.
Background technology
Along with Fiber to the home (FTTH) the continuous progress of technology and the continuous growth of bandwidth demand, how optical fiber being incorporated into user side from the Optical Distribution Point of Access Network has become the hot technology that people pay close attention to.Conventionally we are called indoor optical cable by this section of optical cable.
Indoor wiring cable comprises single core indoor optical cable and twin-core indoor optical cable at present.A kind of single core indoor optical cable as shown in Figure 1 comprises optical fiber 11, reinforcing element 12, self-bearing type reinforcing element 13 and sheath 14, and reinforcing element 12 and self-bearing type reinforcing element 13 are reinforcement, all for improving machinery and the tensile property of optical fiber.A kind of single core indoor optical cable as shown in Figure 2 comprises optical fiber 21, reinforcing element 22 and sheath 23.As shown in Figure 3 and Figure 4, between two optical fiber of existing twin-core indoor optical cable, closely connect, every optical fiber is not wrapped up by sheath completely.When user need to open cable TV signal and Computer signal simultaneously, the application of existing cable configuration is just subject to certain limitation.If adopt single core indoor optical cable, so just must lay two optical cables, increased the workload of fiber cable laying; And if use twin-core indoor optical cable; the terminal of cable TV signal and Computer signal just need to from very close to; an optical fiber is connected to limit TV signal; an optical fiber connects Computer signal; two optical fiber are by while strip off; move different signal places to, a part for optical fiber is exposed in air, is unfavorable for the protection of optical fiber.
Summary of the invention
The object of the present invention is to provide a kind of twin fiber cable, to solve existing two-wire cable, be torn the problem that rear optical fiber can not effectively be protected.
To achieve these goals, the present invention adopts following technical scheme: a kind of twin fiber cable, comprise sheath, and in sheath, be provided with two optical fiber, between described two optical fiber, there is gap.
Sheath is provided with tear line, and this tear line is between two optical fiber.
The outside of every optical fiber is equipped with a reinforcement.
Described reinforcement is high-carbon steel wire.
Beneficial effect of the present invention: owing to thering is gap between two optical fiber; and every optical fiber is wrapped up by sheath respectively; when by two optical fiber separately after, every optical fiber is still wrapped up by sheath and can be externally not exposed, thereby every optical fiber can be effectively protected.
Further, can be easily by two optical fiber separation by tear line.
Further; because the outside of every optical fiber is equipped with reinforcement; thereby after twin fiber cable is torn; can be used as two independently single fiber cables; on each single fiber cable, there is reinforcement and possess certain machinery and tensile property, can make every single-core fiber better be protected.
Further, compare with mild steel wire, high-carbon steel wire, as reinforcement, can make optical cable have higher machinery and tensile strength.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of existing single core indoor optical cable;
Fig. 2 is the structural representation of the second embodiment of existing single core indoor optical cable;
Fig. 3 is the structural representation of the first embodiment of existing twin-core indoor optical cable;
Fig. 4 is the structural representation of the second embodiment of existing twin-core indoor optical cable;
Fig. 5 is the structural representation of the embodiment 1 of twin fiber cable of the present invention.
Embodiment
Twin fiber cable embodiment 1 of the present invention, as shown in Figure 5: this twin fiber cable comprises sheath 1, optical fiber 2 and reinforcement 3.Optical fiber 2 and reinforcement 3 are located at sheath 1 inside.Optical fiber 2 has two, and two optical fiber 2 is parallel and between left and right every setting, between two optical fiber 2, has gap, and the periphery of every optical fiber 2 is all wrapped up completely by sheath 1.
In the present embodiment, sheath 1 is provided with tear line 4, and this tear line 4 is between two optical fiber 2.Reinforcement 3 has two, and reinforcement 3 is corresponding one by one with optical fiber 2, and each reinforcement 3 is all positioned at the outside of corresponding optical fiber 2.In the present embodiment, two reinforcement 3 is parallel and between left and right every setting, two optical fiber 2 are between two reinforcements 3, and this twin fiber cable is " two 8 words " shape structure.
In other embodiments, two reinforcements can also be located at upside or the downside of corresponding optical fiber.In other embodiments, reinforcement can also be only one.
In the present embodiment, sheath 1 adopts low-smoke non-halogen flame-retardant environment-friendly materials, and reinforcement 3 is high-carbon steel wire.In other embodiments, reinforcement can also be copper wire or mild steel wire or bullet wire.
Optical fiber attenuation is an important indicator of circuit transmission quality, is that the design of decision optical communication network and signal are in the principal element of optical cable transmission distance.Consider and while laying in floor gap or corridor, have various complicated states, (as while running into the vertical corner cabling in room, bending radius≤30mm), the bending property of traditional G.652D optical fiber can not meet above-mentioned condition, so the present invention selects single-mode optical fiber with insensitive bending loss 6.657 optical fiber of Novel connecting networking use.For guaranteeing the quality of networking, preferred mode field diameter and the G.657.A2 optical fiber that G.652.D index is more consistent.Current mode field diameter scope is G.657.B too wide in range, is difficult to control the requirement to the index that continues.
The advantage of embodiments of the invention 1: twin fiber cable of the present invention has been taken into account the feature of outdoor optical cable and inside cable, can be used as optical distribution cable, access optical cable and subscriber optical cable, can directly introduce in buildings and terminate from yard piping, be applicable to pipeline, wire casing, vertical shaft, ceiling, the indoor and outdoor integrated synthesis wirings such as carpet, especially when user needs cable TV signal and Computer signal to use simultaneously, this kind of optical cable is more convenient, protection to optical fiber is better, if user only needs a kind of signal, we also can route to this kind of optical cable in user family, when it need to increase another kind of use signal, can carry out at any time the open-minded of signal, and do not need rewiring.
Twin fiber cable of the present invention meets the construction that Optical Distribution Point is incorporated into user side complexity and lays environment, have indoor and outdoor optical cable characteristic concurrently, meet the demand of different access signals, the inconvenience of having avoided secondary construction to cause, the space of lines escalation transformation is larger, technology content and added value of products is high, and economic benefit and social benefit are remarkable.
Claims (4)
1. a twin fiber cable, comprises sheath, is provided with two optical fiber in sheath, it is characterized in that: between described two optical fiber, have gap.
2. a kind of twin fiber cable according to claim 1, is characterized in that: sheath is provided with tear line, and this tear line is between two optical fiber.
3. a kind of twin fiber cable according to claim 1 and 2, is characterized in that: the outside of every optical fiber is equipped with a reinforcement.
4. a kind of twin fiber cable according to claim 3, is characterized in that: described reinforcement is high-carbon steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658056.1A CN103676053A (en) | 2013-12-09 | 2013-12-09 | Double-core optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658056.1A CN103676053A (en) | 2013-12-09 | 2013-12-09 | Double-core optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103676053A true CN103676053A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310658056.1A Pending CN103676053A (en) | 2013-12-09 | 2013-12-09 | Double-core optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103676053A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865661A (en) * | 2015-05-27 | 2015-08-26 | 成都美美通信技术有限公司 | Dual-core leather cable |
| CN111025508A (en) * | 2019-12-31 | 2020-04-17 | 江苏亨通光电股份有限公司 | Optical cable, double-core optical cable and double-core optical cable forming die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458374A (en) * | 2008-11-17 | 2009-06-17 | 江苏永鼎股份有限公司 | Longitudinal optical cable for optical fiber to house |
| CN201434922Y (en) * | 2009-03-13 | 2010-03-31 | 西古光纤光缆有限公司 | Easy stripping short-distance self-supporting miniature optical cable from optical fiber to outdoor space |
| CN201917688U (en) * | 2010-11-24 | 2011-08-03 | 江苏永鼎股份有限公司 | Twin-core optical cable used indoors |
| CN202083824U (en) * | 2011-05-16 | 2011-12-21 | 江苏永鼎股份有限公司 | Multi-core strap-like soft optical cable easy to branch for indoor wiring arrangement |
| CN103353641A (en) * | 2013-06-13 | 2013-10-16 | 成都亨通光通信有限公司 | Easily-branched micro-beam tube optical cable |
-
2013
- 2013-12-09 CN CN201310658056.1A patent/CN103676053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458374A (en) * | 2008-11-17 | 2009-06-17 | 江苏永鼎股份有限公司 | Longitudinal optical cable for optical fiber to house |
| CN201434922Y (en) * | 2009-03-13 | 2010-03-31 | 西古光纤光缆有限公司 | Easy stripping short-distance self-supporting miniature optical cable from optical fiber to outdoor space |
| CN201917688U (en) * | 2010-11-24 | 2011-08-03 | 江苏永鼎股份有限公司 | Twin-core optical cable used indoors |
| CN202083824U (en) * | 2011-05-16 | 2011-12-21 | 江苏永鼎股份有限公司 | Multi-core strap-like soft optical cable easy to branch for indoor wiring arrangement |
| CN103353641A (en) * | 2013-06-13 | 2013-10-16 | 成都亨通光通信有限公司 | Easily-branched micro-beam tube optical cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865661A (en) * | 2015-05-27 | 2015-08-26 | 成都美美通信技术有限公司 | Dual-core leather cable |
| CN104865661B (en) * | 2015-05-27 | 2018-12-04 | 成都美美通信技术有限公司 | Twin-core skin cable |
| CN111025508A (en) * | 2019-12-31 | 2020-04-17 | 江苏亨通光电股份有限公司 | Optical cable, double-core optical cable and double-core optical cable forming die |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |
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| RJ01 | Rejection of invention patent application after publication |