CN101403813A - Optical cable with connector - Google Patents
Optical cable with connector Download PDFInfo
- Publication number
- CN101403813A CN101403813A CNA2008102347143A CN200810234714A CN101403813A CN 101403813 A CN101403813 A CN 101403813A CN A2008102347143 A CNA2008102347143 A CN A2008102347143A CN 200810234714 A CN200810234714 A CN 200810234714A CN 101403813 A CN101403813 A CN 101403813A
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- cable
- restrictive coating
- joints
- optical fibre
- exposed end
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Abstract
The invention relates to an optical cable with a connector and belongs to the field of an optical communication cable technology. The optical cable is composed of a cable body, an optical fiber connector and a connection protective layer. The cable body comprises a restrictive coating, a reinforcer arranged in the restrictive coating and a loosing casing which is provided with optical fiber. The optical fiber extends out of the restrictive coating of the cable body to form an exposed end. The exposed end penetrates the connection protective layer to be spliced with the optical fiber connector. The optical cable has the advantages of low cost and wide use range, and can replace radio-frequency cables in the prior art; the cable can be wired vertically and horizontally; the connection protective layer and the optical fiber connector are additionally arranged on the exposed end of the optical fiber, thus not needing special equipment and professional staff in construction; and the field wiring and the connection of the cables can be finished in a short time; besides, the maintenance cost is low; the cable is used in coiling without special discs, which is more convenient to be carried.
Description
Technical field
The invention belongs to the communications optical cable technical field, be specifically related to a kind of connectorized cable.
Background technology
In actual communication systems,, often come transmission signals with the mode of multichannel communication multiple telecommunication in order to improve the utilization factor of communication system.So-called multichannel communication multiple telecommunication just is meant the synthetic group's signal of the sets of signals that a plurality of various information source is sent, and transmits via same channel, in receiving end again with its separation and with they corresponding receptions.Time Division Multiplexing is exactly a kind of multichannel communication multiple telecommunication mode commonly used, in the present Time Division Multiplexing system, be provided with a large amount of communication base stations, and each signal of base station emission realizes by radio frequency (RF) cable, in order to realize the transmission of signal, at least to introduce 3 above radio-frequency cables at the bottom of from cat head to tower, and along with the increase of transmission frequency, in order to reach desirable emissive power, the diameter of necessary overstriking conductor, therefore, together with other supply line, wiring is often very complicated, and the volume that takes up room is quite big; Safeguard also and quite bother; Certainly, cost is also very expensive, and particularly the demand owing to domestic and international non-ferrous metal increases day by day, and the reserves of non-ferrous metal are limited, and therefore, as the metallic conductor of information transmission, price in recent years is constantly soaring.At above-mentioned existing problems, now suddenly on the market need a kind of optical cable and substitute radio frequency (RF) cable in the prior art.
And optical cable commonly used at present mainly comprises cable core and the restrictive coating that is extruded in the cable core outside, be provided with one or several loose sleeve pipe that includes light transmitting fiber (optical fiber) in the cable core, in order to prevent longitudinally permeating after sealing and moisture enter optical cable, influence fibre-optic transmission quality, be provided with cable cream in the cable core space in restrictive coating, the fine cream that blocks water is set in the space in loose sleeve pipe between light transmitting fiber.This optical cable is through wrapped coiling on the tool after the moulding, and when construction, optical fiber is taken out in the stripping fiber optic cables termination again, then by special-purpose joining equipment, by the professional and technical personnel optical fiber is fused mutually with the fibre-optical splice of being scheduled to.This optical cable owing to itself be not with the joints of optical fibre, therefore can bring great inconvenience and difficulty to construction.
Summary of the invention
Task of the present invention be to provide a kind of structure to be provided with rationally, cost is low, construction the time need not specialized equipment and professional and be easy to execute-in-place and convenient and fast connection connectorized cable.
Task of the present invention is finished like this; a kind of connectorized cable; by cable body, the joints of optical fibre be connected protective seam and constitute; described cable body comprises restrictive coating and is located at restrictive coating interior reinforcement and loose sleeve pipe; be provided with light transmitting fiber in the described loose sleeve pipe; the restrictive coating that described light transmitting fiber stretches out described cable body forms exposed end outward, and described exposed end is bonding with the described joints of optical fibre after passing described connection protective seam.
In a specific embodiment of the present invention, the described joints of optical fibre are preferably the LC type joints of optical fibre or the PC type joints of optical fibre.
In another specific embodiment of the present invention, the centre of the described joints of optical fibre is formed with the cavity that is used for for described fibre-optic exposed end insertion, be filled with epoxy resin in the cavity, can realize bonding between the described exposed end and the described joints of optical fibre by epoxy resin.
In another specific embodiment of the present invention; described connection protective seam comprises protection blank pipe, non-metal reinforcement member and coupling blank pipe; the centre of described protection blank pipe is formed with and is used for the through hole that the described fibre-optic exposed end of confession passes; described non-metal reinforcement member is coated on the outside of described protection blank pipe, and described coupling blank pipe is set in the outside of described non-metal reinforcement member.
In another specific embodiment of the present invention; the material of described protection blank pipe is plastics; the material of described non-metal reinforcement member is an aramid yarn, and the material of described coupling blank pipe is plastics, and described plastics are low-smoke halogen-free polyolefin plastics or igelite (PVC).
Go back in the specific embodiment of the present invention, be provided with filling material in the described loose sleeve pipe, described filling material is greasy for preventing water, water-proofing powder or water blocking yarn.
More of the present invention and in specific embodiment, also have additional gasket for packing in the restrictive coating of described cable body, the material of gasket for packing is low density polyethylene (LDPE) or polypropylene (PP).
In of the present invention and then specific embodiment, the length direction along the cable body in the gap between described loose sleeve pipe, reinforcement has additional water blocking yarn, is coated with waterstop at described loose sleeve pipe.
In again of the present invention and then specific embodiment, described waterstop is coated with moisture-proof layer, and the material of described moisture-proof layer is a metal, and described metal is steel band or aluminium strip.
Of the present invention again more and in specific embodiment, the material of described reinforcement is steel wire or glass fiber reinforced plastics (FRP); The material of described restrictive coating is low-smoke halogen-free polyolefin plastics or igelite (PVC), and the thickness of restrictive coating is 0.6～3.0mm.
The present invention is because after adopting said structure, and one of advantage that has, optical cable cost are low, the radio frequency in the alternative prior art (RF) cable, and usable range is wide; Advantage two, not only can be used for vertical wirings but also can be used for horizontal wiring; Advantage three, on fibre-optic exposed end, set up and connect the protective seam and the joints of optical fibre, need not specialized equipment and professional during construction, just can finish the optical cable field wiring and be connected at short notice, and maintenance cost is low; Advantage four, rolling uses, and do not need special-purpose dish tool, carries convenient.
Description of drawings
Fig. 1 is the cross sectional representation of cable body in one embodiment of the invention.
Fig. 2 is the cross sectional representation of cable body in another embodiment of the present invention.
Fig. 3 is the cross sectional representation of cable body in yet another embodiment of the invention.
Fig. 4 is the cross sectional representation of cable body in further embodiment of this invention.
Fig. 5 is the joints of optical fibre of the present invention, the longitudinal section synoptic diagram that connects protective seam and fibre-optic exposed end.
Among the figure: 1. loose sleeve pipe, 11. light transmitting fibers, 111. exposed ends, 12. oily filling materials; 2. reinforcement; 3. restrictive coating; 4. waterstop; 5. gasket for packing; 6. water blocking yarn; 7. moisture-proof layer; 8. connect protective seam, 81. protection blank pipes, 811. through holes, 82. non-metal reinforcement members, 83. coupling blank pipes; 9. the joints of optical fibre, 91. cavitys.
Embodiment
For the ease of the auditor of Patent Office particularly the public can be well understood to technical spirit of the present invention and beneficial effect more; the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail as follows; but all descriptions to embodiment all do not constitute the restriction to technical scheme of the present invention, and are any pro forma but not substantial equivalence is replaced even the name of vocabulary of terms such as Reference numeral is called conceptual variation all should be considered as technical scheme scope disclosed in this invention and the prescription protection.
See also Fig. 1 and in conjunction with Fig. 5; a kind of connectorized cable; by the cable body; the joints of optical fibre 9; with be connected protective seam 8 and constitute; described cable body comprises restrictive coating 3 and is located at reinforcement 2 in the restrictive coating 3; with loose sleeve pipe 1; be provided with light transmitting fiber 11 in the described loose sleeve pipe 1; the quantity of light transmitting fiber 11 is not subjected to any restriction; it can be 1; also can be many; 6 have been illustrated among the figure; be provided with oily filling material 12 in the space in loose sleeve pipe 1 between the light transmitting fiber 11; described oily filling material 12 is a greasy for preventing water; water-proofing powder; or water blocking yarn; the restrictive coating 3 that described light transmitting fiber 11 stretches out described cable body is formed with exposed end 111 outward; described exposed end 111 is in that to pass described connection protective seam 8 backs bonding with the described joints of optical fibre 9; the described joints of optical fibre 9 are preferably the LC type joints of optical fibre or the PC type joints of optical fibre; all can directly buy from the market; the centre of the described joints of optical fibre 9 is formed with the cavity 91 that is used for for exposed end 111 insertions of described light transmitting fiber 11; described connection protective seam 8 comprises protection blank pipe 81; non-metal reinforcement member 82; with coupling blank pipe 83; the centre of described protection blank pipe 81 is formed with and is used for the through hole 811 that the exposed end 111 for described light transmitting fiber 11 passes; described non-metal reinforcement member 82 is coated on around the outside of described protection blank pipe 81; and described coupling blank pipe 83 is set in around the outside of described non-metal reinforcement member 82; be used for and the joints of optical fibre 9 couplings; described protection blank pipe 81; the material of coupling blank pipe 83 is low-smoke halogen-free polyolefin plastics or igelite (PVC); the material of described non-metal reinforcement member 82 is an aramid yarn; in the cavity 91 in the middle of the through hole 811 back insertion joints of optical fibre 9 of the exposed end 111 of described light transmitting fiber 11 in the middle of passing described protection blank pipe 81; then epoxy resin is injected cavity 91, thereby can realize bonding between the exposed end 111 of light transmitting fiber 11 and the joints of optical fibre 9.Here need to prove:, be connected with the connection protective seam 8 and the joints of optical fibre 9 on the exposed end 111 separately respectively for each root light transmitting fiber 11.
Please continue to consult Fig. 1, it is stranded that described loose sleeve pipe 1 is with reinforcement 2 that the center is carried out, the stranded loose sleeve pipe 1 outer restrictive coating 3 that is extruded with.Certainly, the quantity of loose sleeve pipe 1 is not subjected to any restriction, can be 1, can be many yet, has illustrated 1 among the figure.When the loose sleeve pipe 1 in the restrictive coating 3 has only one, in order to reach constitutionally stable purpose, can set up gasket for packing 5, realize stranded with gasket for packing 5 and loose sleeve pipe 1 around reinforcement 2.Above the material of described gasket for packing 5 be low density polyethylene (LDPE) or polypropylene (PP) etc.; The material of described reinforcement 2 is steel wire or glass fiber reinforced plastics (FRP) etc.; The material of described restrictive coating 3 is low-smoke halogen-free polyolefin plastics (POE) or igelite (PVC) etc., and the THICKNESS CONTROL of restrictive coating 3 is between 0.6～3.0mm.
See also Fig. 2 and in conjunction with Fig. 5, the difference of present embodiment and embodiment 1 is:
Placed water blocking yarn 6 along the length direction of cable body in the gap of pine sleeve pipe 1 and reinforcement 2, be coated with waterstop 4, the waterstop 4 outer restrictive coatings 3 that are extruded with again through stranded loose sleeve pipe 1, reinforcement 2, gasket for packing 5.
Certainly, can fill greasy for preventing water in the gap of loose sleeve pipe 1 and reinforcement 2, also can be spirally around putting many water blocking yarns on reinforcement 2, when putting, its pitch is controlled between 20mm～100mm.
In addition, can also vertically wrap up or wrapped other material water-proof material in the outside of many stranded loose sleeve pipes 1, as water blocking yarn, nonwoven fabrics etc.
See also Fig. 3 and in conjunction with Fig. 5, the difference of present embodiment and embodiment 1 is:
Described reinforcement 2 is the hollow tubular structures and the outside that is coated on loose sleeve pipe 1, and sheath 3 is extruded in the outside of reinforcement 2.And, saved gasket for packing 5.
The nonmetallic glass fiber reinforced plastics band of described reinforcement 2 preferred employings.
See also Fig. 4 and in conjunction with Fig. 5, the difference of present embodiment and embodiment 1 is: be coated with waterstop 4 at loose sleeve pipe 1, waterstop 4 is coated with moisture-proof layer 7, and there are 2 reinforcements 2 in moisture-proof layer 7 outsides, and described moisture-proof layer 7, reinforcement 2 place in the restrictive coating 3 altogether.And, saved gasket for packing 5.
Described moisture-proof layer 7 preferred steel band or aluminium strips.
Claims (10)
1, a kind of connectorized cable; it is characterized in that by cable body, the joints of optical fibre (9) and be connected protective seam (8) constituting; described cable body comprises restrictive coating (3) and is located at restrictive coating (3) interior reinforcement (2) and loose sleeve pipe (1); be provided with light transmitting fiber (11) in the described loose sleeve pipe (1); the restrictive coating (3) that described light transmitting fiber (11) stretches out described cable body forms exposed end (111) outward, and described exposed end (111) is bonding with the described joints of optical fibre (9) after passing described connection protective seam (8).
2, connectorized cable according to claim 1 is characterized in that the described joints of optical fibre (9) are preferably the LC type joints of optical fibre or the PC type joints of optical fibre.
3, connectorized cable according to claim 1 and 2, the centre that it is characterized in that the described joints of optical fibre (9) is formed with the cavity (91) that is used for for exposed end (111) insertion of described light transmitting fiber (11), cavity is filled with epoxy resin in (91), can realize bonding between the described exposed end (111) and the described joints of optical fibre (9) by epoxy resin.
4, connectorized cable according to claim 1; it is characterized in that described connection protective seam (8) comprises protection blank pipe (81), non-metal reinforcement member (82) and coupling blank pipe (83); the centre of described protection blank pipe (81) is formed with the through hole (811) that passes of exposed end (111) that is used for for described light transmitting fiber (11); described non-metal reinforcement member (82) is coated on the outside of described protection blank pipe (81), and described coupling blank pipe (83) is set in the outside of described non-metal reinforcement member (82).
5, connectorized cable according to claim 4; the material that it is characterized in that described protection blank pipe (81), coupling blank pipe (83) is plastics; the material of described non-metal reinforcement member (82) is an aramid yarn, and described plastics are low-smoke halogen-free polyolefin plastics or igelite.
6, connectorized cable according to claim 1 is characterized in that being provided with filling material (12) in the described loose sleeve pipe (1), and described filling material (12) is greasy for preventing water, water-proofing powder or water blocking yarn.
7, connectorized cable according to claim 1 is characterized in that also having additional gasket for packing (5) in the restrictive coating (3) of described cable body, and the material of gasket for packing (5) is low density polyethylene or polypropylene.
8, according to claim 1 or 7 described connectorized cables, it is characterized in that the length direction along the cable body has additional water blocking yarn (6) in the gap between described loose sleeve pipe (1), reinforcement (2), be coated with waterstop (4) at described loose sleeve pipe (1).
9, connectorized cable according to claim 8 is characterized in that described waterstop (4) is coated with moisture-proof layer (7), and the material of described moisture-proof layer (7) is a metal, and described metal is steel band or aluminium strip.
10, connectorized cable according to claim 1, the material that it is characterized in that described reinforcement (2) is steel wire or glass fiber reinforced plastics; The material of described restrictive coating (3) is low-smoke halogen-free polyolefin plastics or igelite, and the thickness of restrictive coating (3) is 0.6～3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102347143A CN101403813A (en) | 2008-10-28 | 2008-10-28 | Optical cable with connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102347143A CN101403813A (en) | 2008-10-28 | 2008-10-28 | Optical cable with connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101403813A true CN101403813A (en) | 2009-04-08 |
Family
ID=40537881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102347143A Pending CN101403813A (en) | 2008-10-28 | 2008-10-28 | Optical cable with connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101403813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033444A (en) * | 2011-09-29 | 2013-04-10 | 山东太平洋光缆有限公司 | Dripping test method of optical fiber ointment for communication optical fiber cable |
| CN113534380A (en) * | 2021-07-12 | 2021-10-22 | 江苏中天科技股份有限公司 | Polyolefin sheath, preparation method thereof and fire-resistant nonmetal optical fiber ribbon cable |
-
2008
- 2008-10-28 CN CNA2008102347143A patent/CN101403813A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033444A (en) * | 2011-09-29 | 2013-04-10 | 山东太平洋光缆有限公司 | Dripping test method of optical fiber ointment for communication optical fiber cable |
| CN113534380A (en) * | 2021-07-12 | 2021-10-22 | 江苏中天科技股份有限公司 | Polyolefin sheath, preparation method thereof and fire-resistant nonmetal optical fiber ribbon cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |