CN202305921U - Distortion-resistance butterfly-shaped cable - Google Patents
Distortion-resistance butterfly-shaped cable Download PDFInfo
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- CN202305921U CN202305921U CN2011202871032U CN201120287103U CN202305921U CN 202305921 U CN202305921 U CN 202305921U CN 2011202871032 U CN2011202871032 U CN 2011202871032U CN 201120287103 U CN201120287103 U CN 201120287103U CN 202305921 U CN202305921 U CN 202305921U
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- optical fiber
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Abstract
The utility model belongs to the technical field of optical fiber cables, and particularly relates to a distortion-resistance butterfly-shaped cable which comprises at least one optical fiber, stiffeners, a jacket and tearing openings, wherein the optical fiber is arranged at a center, the stiffeners are arranged on the upper and lower sides of the optical fiber, the jacket wraps the stiffeners and the optical fiber, the tearing openings are positioned on the left and right sides of the optical fiber, the optical fiber is in contact with the stiffeners, and the tearing openings are not in contact with the optical fiber. The distortion-resistance butterfly-shaped cable is characterized in that the tearing openings are trapezoid and are formed on any section of the cable; the shorter edge of each trapezoid tearing opening is closer to the optical fiber while the longer edge of the trapezoid tearing opening is far from the optical fiber; and when one optical fiber is arranged, the center of the optical fiber and the centers of the stiffeners are in one line which is parallel to the shorter edge of each trapezoid tearing opening, and on the section of the cable, the orthographic projection of the optical fiber on the center connecting line of the stiffeners is positioned in the range of the orthographic projection of the shorter edges of the trapezoid tearing openings on the center connecting line of the stiffeners. The distortion-resistance butterfly-shaped cable has the advantages of being better in distortion resistance, more stable in cable performance, longer in service life, easier to construct and pave, and the like.
Description
Technical field
The utility model belongs to the optical fiber cable technical field, especially relates to a kind of twist-resistant type butterfly optical cable.
Background technology
Along with the continuous quickening of FTTX process, domestic and even demand butterfly optical cable in the world is constantly soaring, butterfly optical cable since its have good anti-microbend performance, rational structure size, be easy to lay or the like all advantages, so favored by each operator.Yet, owing to stipulated the shape of optical cable in the appendix in People's Republic of China's communication industry standard " the YD/T1997-2009 Access Network is used the butterfly leading in cable ", especially divide the triangle that is shaped as one jiao of forward optical fiber of breach or subtriangular; Therefore this kind optical cable has brought the performance that is prone to tear on the one hand, but the time, the author finds; In a large amount of deposited workers, usually cause optical cable to be torn, former because reverse formation in the construction, during distortion; The tearing port place just separates naturally, up to optical fiber or fibre ribbon place, like this; Introduced the continuous complaint of each big operator, caused harmful effect for domestic a lot of enterprises, the life-span of optical cable is shortened greatly.
The utility model content
In order to address the above problem; The purpose of the utility model provides a kind of twist-resistant type butterfly optical cable; It can reduce the natural cracking problem in the butterfly optical cable construction in the prior art, and further, the utility model has also solved in the prior art; This kind optical cable is transferred more optical fiber and the incompatible problem of tear resistance in the dimensional requirement of regulation, and they adopt following technical scheme to realize:
A kind of twist-resistant type butterfly optical cable; Include at least one optical fiber 2 that is positioned at the center, be positioned at optical fiber up and down both sides two stiffeners 1, envelope the sheath 4 of stiffener and optical fiber and be positioned at two tearing ports 3 of the optical fiber left and right sides; Optical fiber and reinforcement structure are discontiguous; Tearing port and optical fiber also are discontiguous; It is characterized in that said tearing port is a trapezoidal shape, and on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; When optical fiber was one, fiber optic hub, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber was two, the center of two optical fiber, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber is four; The line of centres of stiffener and trapezoidal short limit parallel; And fiber distribution is in the both sides of the line of centres of stiffener; And on arbitrary optical cable xsect, the orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said optical cable on arbitrary xsect, and long is 3.0mm ± 0.2mm; Wide is 2.0mm ± 0.2mm.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said optical fiber is G652 type or G655 type or G656 type or G657 type.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said stiffener is steel wire or GFRP or KFRP.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said sheath is PVC or low smoke halogen-free flame-retardant polyolefin.
In the utility model product, at one end fixing and add 20N through overtesting because design cleverly makes optical cable have good torsional resistance, when being turned round length and being 0.5m, windup-degree be ± 180 degree, reverses for 200 times not see that sheath ftractures.
The utlity model has following beneficial effect: torsional resistance is better, properties of optical fiber cable is more stable, the life-span is longer, more be prone to construction lays.
Description of drawings
Fig. 1 is the perspective view after the utility model embodiment 1 local solution is cut open;
Fig. 2 is the front view after Fig. 1 amplifies;
Fig. 3 is the perspective view after the utility model embodiment 2 local solutions are cut open;
Fig. 4 is the front view after Fig. 3 amplifies;
Fig. 5 is the perspective view after the utility model embodiment 3 local solutions are cut open;
Fig. 6 is the front view after Fig. 5 amplifies;
Fig. 7 is the perspective view after the utility model embodiment 4 local solutions are cut open;
Fig. 8 is the front view after Fig. 7 amplifies.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Ask for an interview Fig. 1 and Fig. 2; A kind of twist-resistant type butterfly optical cable; Include an optical fiber 2 that is positioned at the center, be positioned at optical fiber up and down both sides two stiffeners 1, envelope the sheath 4 of stiffener and optical fiber and be positioned at two tearing ports 3 of the optical fiber left and right sides; Optical fiber and reinforcement structure are discontiguous, and tearing port and optical fiber also are discontiguous, it is characterized in that said tearing port is a trapezoidal shape; And on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; Fiber optic hub, stiffener are centered close on the straight line, and this straight line and trapezoidal short limit parallel; And on arbitrary optical cable xsect, the orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
Ask for an interview Fig. 3 and Fig. 4; A kind of twist-resistant type butterfly optical cable; Include two optical fiber 2 that are positioned at the center, be positioned at optical fiber up and down both sides two stiffeners 1, envelope the sheath 4 of stiffener and optical fiber and be positioned at two tearing ports 3 of the optical fiber left and right sides; Optical fiber and reinforcement structure are discontiguous, and tearing port and optical fiber also are discontiguous, it is characterized in that said tearing port is a trapezoidal shape; And on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; The center of two optical fiber, stiffener are centered close on the straight line, and this straight line and trapezoidal short limit parallel; And on arbitrary optical cable xsect, the orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
Ask for an interview Fig. 5 and Fig. 6; Ask for an interview Fig. 3 and Fig. 4; A kind of twist-resistant type butterfly optical cable, include four optical fiber 2 that are positioned at the center, be positioned at optical fiber up and down both sides two stiffeners 1, envelope the sheath 4 of stiffener and optical fiber and be positioned at two tearing ports 3 of the optical fiber left and right sides, optical fiber and reinforcement structure are discontiguous; Tearing port and optical fiber also are discontiguous; It is characterized in that said tearing port is a trapezoidal shape, and on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; The line of centres of stiffener and trapezoidal short limit parallel; And fiber distribution is in the both sides of the line of centres of stiffener; And on arbitrary optical cable xsect; The orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
Ask for an interview Fig. 7 and Fig. 8, basically with embodiment 3, difference is the approximate half-circular that is shaped as at two ends.
Through repetition test, as long as satisfy the optical cable of following condition, aim all according to the invention:
A kind of twist-resistant type butterfly optical cable; Include at least one optical fiber 2 that is positioned at the center, be positioned at optical fiber up and down both sides two stiffeners 1, envelope the sheath 4 of stiffener and optical fiber and be positioned at two tearing ports 3 of the optical fiber left and right sides; Optical fiber and reinforcement structure are discontiguous; Tearing port and optical fiber also are discontiguous; It is characterized in that said tearing port is a trapezoidal shape, and on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; When optical fiber was one, fiber optic hub, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber was two, the center of two optical fiber, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber is four; The line of centres of stiffener and trapezoidal short limit parallel; And fiber distribution is in the both sides of the line of centres of stiffener; And on arbitrary optical cable xsect, the orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said optical cable on arbitrary xsect, and long is 3.0mm ± 0.2mm; Wide is 2.0mm ± 0.2mm.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said optical fiber is G652 type or G655 type or G656 type or G657 type.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said stiffener is steel wire or GFRP or KFRP.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said stiffener diameter is 0.4mm～0.6mm.
Above-mentioned described twist-resistant type butterfly optical cable is characterized in that said sheath is PVC or low smoke halogen-free flame-retardant polyolefin.
In the utility model product, at one end fixing and add 20N through overtesting because design cleverly makes optical cable have good torsional resistance, when being turned round length and being 0.5m, windup-degree be ± 180 degree, reverses for 200 times not see that sheath ftractures.
Simultaneously, because tearing port is trapezoidal, Gu Qigao also is that the depth ratio of tearing port is of the prior art shallow, so solved in the prior art, this kind optical cable is transferred more optical fiber and the incompatible problem of tear resistance in the dimensional requirement of regulation.
The utlity model has following beneficial effect: torsional resistance is better, properties of optical fiber cable is more stable, the life-span is longer, more be prone to construction lays.
The utility model is not limited to above-mentioned preferred forms, should be appreciated that the design of the utility model can be implemented utilization by other various forms, and they drop in the protection domain of the utility model equally.
Claims (6)
1. twist-resistant type butterfly optical cable; Include at least one optical fiber (2) that is positioned at the center, be positioned at optical fiber up and down both sides two stiffeners (1), envelope the sheath (4) of stiffener and optical fiber and be positioned at two tearing ports (3) of the optical fiber left and right sides; Optical fiber and reinforcement structure are discontiguous; Tearing port and optical fiber also are discontiguous; It is characterized in that said tearing port is a trapezoidal shape, and on arbitrary xsect of optical cable: trapezoidal short limit and fiber distance are nearer, and trapezoidal short limit and fiber distance are far away; When optical fiber was one, fiber optic hub, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber was two, the center of two optical fiber, stiffener were centered close on the straight line, and this straight line and trapezoidal short limit parallel; When optical fiber is four; The line of centres of stiffener and trapezoidal short limit parallel; And fiber distribution is in the both sides of the line of centres of stiffener; And on arbitrary optical cable xsect, the orthogonal projection of optical fiber on the line of centres of stiffener is positioned at trapezoidal short limit within the orthogonal projection scope on the line of centres of stiffener.
2. twist-resistant type butterfly optical cable according to claim 1 is characterized in that said optical cable on arbitrary xsect, and long is 3.0mm ± 0.2mm; Wide is 2.0mm ± 0.2mm.
3. twist-resistant type butterfly optical cable according to claim 1 is characterized in that said optical fiber is G652 type or G655 type or G656 type or G657 type.
4. twist-resistant type butterfly optical cable according to claim 1 is characterized in that said stiffener is steel wire or GFRP or KFRP.
5. twist-resistant type butterfly optical cable according to claim 4 is characterized in that said stiffener diameter is 0.4mm～0.6mm.
6. twist-resistant type butterfly optical cable according to claim 1 is characterized in that said sheath is PVC or low smoke halogen-free flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202871032U CN202305921U (en) | 2011-08-08 | 2011-08-08 | Distortion-resistance butterfly-shaped cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202871032U CN202305921U (en) | 2011-08-08 | 2011-08-08 | Distortion-resistance butterfly-shaped cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305921U true CN202305921U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202871032U Expired - Fee Related CN202305921U (en) | 2011-08-08 | 2011-08-08 | Distortion-resistance butterfly-shaped cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305921U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353654A (en) * | 2013-06-18 | 2013-10-16 | 成都亨通光通信有限公司 | Distortion-resistance-type butterfly-shape optical cable |
| CN103353648A (en) * | 2013-06-18 | 2013-10-16 | 成都亨通光通信有限公司 | Pipeline-type butterfly-shape optical cable |
| CN103869433A (en) * | 2013-02-22 | 2014-06-18 | 浙江吉利汽车有限公司 | Fiber optic sheath |
| CN103971850A (en) * | 2014-05-26 | 2014-08-06 | 戴丽芬 | Optical cable for transmitting electric power to home |
| CN114675387A (en) * | 2022-04-09 | 2022-06-28 | 张玉明 | Butterfly-shaped leading-in optical cable |
-
2011
- 2011-08-08 CN CN2011202871032U patent/CN202305921U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869433A (en) * | 2013-02-22 | 2014-06-18 | 浙江吉利汽车有限公司 | Fiber optic sheath |
| CN103353654A (en) * | 2013-06-18 | 2013-10-16 | 成都亨通光通信有限公司 | Distortion-resistance-type butterfly-shape optical cable |
| CN103353648A (en) * | 2013-06-18 | 2013-10-16 | 成都亨通光通信有限公司 | Pipeline-type butterfly-shape optical cable |
| CN103971850A (en) * | 2014-05-26 | 2014-08-06 | 戴丽芬 | Optical cable for transmitting electric power to home |
| CN103971850B (en) * | 2014-05-26 | 2016-07-06 | 国网山东省电力公司莱芜供电公司 | A kind of electric power is to family optical cable |
| CN114675387A (en) * | 2022-04-09 | 2022-06-28 | 张玉明 | Butterfly-shaped leading-in optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120808 |