CN106556904A - Outdoor optical cable - Google Patents
Outdoor optical cable Download PDFInfo
- Publication number
- CN106556904A CN106556904A CN201510636578.0A CN201510636578A CN106556904A CN 106556904 A CN106556904 A CN 106556904A CN 201510636578 A CN201510636578 A CN 201510636578A CN 106556904 A CN106556904 A CN 106556904A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- polyurethane jacket
- optical cable
- optical fiber
- dashpot
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses outdoor optical cable, including sleeve pipe, polyurethane jacket is arranged with the outer wall of sleeve pipe, multiple dashpots are provided with polyurethane jacket inwall, the two side of dashpot is bent towards the direction away from its center, and inside pipe casing is provided with multiple optical fiber, and multiple optical fiber are stranded on aramid fiber pipe, it is further opened with multiple helical grooves on the outer wall of aramid fiber pipe, tear rope is placed in dashpot and interference fit therewith.When optical cable runs into the spreading of vehicle or dropstone in the field environment, coupling part between polyurethane jacket and sleeve pipe is separated into multiple projections by multiple dashpots, when the outer wall stress of polyurethane jacket, projection can be deformed upon in two adjacent dashpots, the interaction of the elastic force produced when pressure replys deformation with projection, so that the pressure actually born on sleeve pipe is substantially reduced, avoid, raising optical cable service life in the field environment oppressed impaired positioned at the optical fiber of inside pipe casing.
Description
Technical field
The present invention relates to a kind of optical cable, specifically refers to outdoor optical cable.
Background technology
Military optical fiber cable for field operation is exclusively for fast wiring being needed under field operation and complex environment or being used under folding and unfolding use condition repeatedly and the metal free optical fiber cable that designs, with it is lightweight, be convenient for carrying；Tension stress, compressive resistance, the ratio of strength to weight are high；Flexibility is good, flexible；It is oil resistant, wear-resisting, fire-retardant；The features such as Applicable temperature scope is wide, it is adaptable to military outdoor communication system fast wiring or repeatedly folding and unfolding；The wiring of radar, aviation and naval vessel；Oil field, mine, harbour, the special occasion of condition such as TV is relayed live, communication line is rushed to repair.
Due to lacking metal as supporting construction in existing optical cable, under the conditions of complicated wild environment, optical cable is difficult to avoid that in use by weight spreading, the compressing of the weight such as military vehicle or mountain area dropstone, which can be caused impaired serious and its communication function is lost, the acquisition of real time information is affected adversely；And wind and rain weather is run into wild environment more, common optical cable cannot ensure its longer service life, when optical cable is connected with other equipment, the way for generally adopting is directly to carry out peeling process to optical cable using cutter or tonger etc., for the real-time and promptness with field operation, this generic operation can take considerable time, it is impossible to be satisfied with and speedily carry out rescue work or the operation of real-time Data Transmission.
The content of the invention
It is an object of the invention to provide outdoor optical cable, facilitates the fast wiring of optical cable and folding and unfolding repeatedly, while quickly realizing the connection of optical cable and equipment.
The purpose of the present invention is achieved through the following technical solutions：
Outdoor optical cable, including sleeve pipe, polyurethane jacket is arranged with the outer wall of described sleeve pipe, multiple dashpots are provided with along its axial direction on the polyurethane jacket inwall, the two side of the dashpot is bent towards the direction away from its center, the bottom of dashpot is then along the radially expansion of the polyurethane jacket, inside pipe casing is provided with multiple optical fiber, multiple optical fiber are stranded on the aramid fiber pipe in the middle part of sleeve pipe in the shape of a spiral, and filled with fine cream between described sleeve pipe and aramid fiber pipe, multiple sections are further opened with the outer wall of the aramid fiber pipe for circular arc and helical groove corresponding with optical fiber；Also include multiple tear ropes, the tear rope is placed in dashpot and interference fit therewith.The present invention is when manufacturing, first multiple optical fiber are stranded on the aramid fiber position-limiting tube with stronger elongation strain ability in the shape of a spiral, then the middle part of sleeve pipe is fixed in both composite constructions, fine cream is injected to realize the fixation of optical fiber into sleeve pipe again, finally again polyurethane jacket is fixed on sleeve pipe, can ensure that military optical fiber cable for field operation can realize fast wiring and the purpose of folding and unfolding repeatedly, while not affecting the signal transfer functions of optical cable；When particularly optical cable runs into the spreading of the weights such as vehicle or dropstone in the field environment, polyurethane jacket positioned at outside of sleeve can adjust to realize the buffering to oppressive force by the deformation of itself, coupling part between polyurethane jacket and sleeve pipe is separated into multiple " work " type projections being distributed in a ring by i.e. multiple dashpots, when the outer wall stress of polyurethane jacket, projection can be deformed upon in two adjacent dashpots, i.e. to the left or to the right again or while both sides produce bending to the left and right, the interaction of the elastic force produced when pressure replys deformation with projection, so that the pressure actually born on sleeve pipe is substantially reduced, avoid oppressed impaired positioned at the optical fiber of inside pipe casing, improve optical cable service life in the field environment.Wherein, the both sides of the dashpot and bottom bend, so that in polyurethane jacket stress, there is deformation step by step in projection, by bend camber side wall and bottom on form transition arc, increase the tension force of raised sides wall, and then reduce the situation for occurring crackle when urethane is enclosed within stress and occur, improve the anti-pressure ability of optical cable.
When optical cable is connected with external equipment, generally optical cable is built-in with the optical fiber of more than three, and the tear rope end being arranged in dashpot is extended outside polyurethane jacket, according to actual needs, operator can select the divided number of polyurethane jacket according to the way of connection line, direction traction tear rope i.e. firmly along polyurethane jacket radially, so that tear rope carries out local segmentation to polyurethane jacket, sleeve pipe is carried out into peeling process by operator again, so that need the optical fiber that is attached it is rapid it is exposed out, and then shorten the time of optical cable peeling, the efficiency of optical cable arrangement is provided.
Tear rope is additionally provided between two adjacent optical fiber.Tear rope between two adjacent optical fiber effect be located at dashpot in tear rope effect it is identical, i.e., traction tear rope polyurethane jacket and sleeve pipe can be carried out into Fast Segmentation quickly, it is ensured that optical fiber it is quick exposed, facilitate the connection of optical fiber.
The radial depth of the dashpot is 3/5ths of the polyurethane jacket thickness.The axial depth of dashpot directly influences the buffering effect of polyurethane jacket oppressive force to external world, and its radial depth to be set to the present invention 3/5ths of polyurethane jacket thickness, can then realize that polyurethane jacket is maximized to the buffering effect of pressure, as the radial depth less than polyurethane jacket thickness 3/5ths, the buffering effect of dashpot is not good, is easily caused sleeve pipe and is stressed directly and breakage occur with optical fiber；As the radial depth more than polyurethane jacket thickness 3/5ths, the intensity decreases of polyurethane jacket itself are easily pierced through by extraneous sharp object.
The tear rope is steel wire rope.Preferably, steel wire rope is interference fit with dashpot, while dashpot normal work is not affected, the Fast Segmentation to polyurethane jacket is capable of achieving using the toughness and intensity of its own, improves the joint efficiency of optical cable.
The present invention compared with prior art, has the following advantages and advantages：
1, when the present invention runs into the spreading of the weights such as vehicle or dropstone in the field environment, polyurethane jacket positioned at outside of sleeve can adjust to realize the buffering to oppressive force by the deformation of itself, coupling part between polyurethane jacket and sleeve pipe is separated into multiple projections being distributed in a ring by i.e. multiple dashpots, when the outer wall stress of polyurethane jacket, projection can be deformed upon in two adjacent dashpots, i.e. to the left or to the right again or while both sides produce bending to the left and right, the interaction of the elastic force produced when pressure replys deformation with projection, so that the pressure actually born on sleeve pipe is substantially reduced, avoid oppressed impaired positioned at the optical fiber of inside pipe casing, improve optical cable service life in the field environment；
2nd, during present invention work, operator can select the divided number of polyurethane jacket according to the way of connection line, direction traction tear rope i.e. firmly along polyurethane jacket radially, so that tear rope carries out local segmentation to polyurethane jacket, sleeve pipe is carried out into peeling process by operator again, so that need the optical fiber that is attached it is rapid it is exposed out, and then shorten the time of optical cable peeling, there is provided the efficiency of optical cable arrangement；
3rd, its radial depth is set to the present invention 3/5ths of polyurethane jacket thickness, then can realize that polyurethane jacket is maximized to the buffering effect of pressure.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the part of the application, does not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Labelling and corresponding parts title in accompanying drawing：
1- polyurethane jackets, 2- dashpots, 3- sleeve pipes, 4- optical fiber, 5- fibre cream, 6- aramid fiber pipes, 7- tear ropes, 8- tear ropes.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, the present embodiment includes sleeve pipe 3, polyurethane jacket 1 is arranged with the outer wall of described sleeve pipe 3, multiple dashpots 2 are provided with along its axial direction on 1 inwall of the polyurethane jacket, the two side of the dashpot 2 is bent towards the direction away from its center, the bottom of dashpot 2 is then along the radially expansion of the polyurethane jacket 1, multiple optical fiber 4 are internally provided with sleeve pipe 3, multiple optical fiber 4 are stranded on the aramid fiber pipe 6 in the middle part of sleeve pipe 3 in the shape of a spiral, and filled with fine cream 5 between described sleeve pipe 3 and aramid fiber pipe 6, be further opened with the outer wall of the aramid fiber pipe 6 multiple sections for circular arc and with 4 corresponding helical groove 8 of optical fiber；Also include multiple tear ropes 7, the tear rope 7 is placed in dashpot 2 and interference fit therewith.
The present invention is when manufacturing, first multiple optical fiber 4 are stranded on the aramid fiber position-limiting tube with stronger elongation strain ability in the shape of a spiral, then the middle part of sleeve pipe 3 is fixed in both composite constructions, fine cream 5 is injected to realize the fixation of optical fiber 4 into sleeve pipe 3 again, finally again polyurethane jacket 1 is fixed on sleeve pipe 3, can ensure that military optical fiber cable for field operation can realize fast wiring and the purpose of folding and unfolding repeatedly, while not affecting the signal transfer functions of optical cable；When particularly optical cable runs into the spreading of the weights such as vehicle or dropstone in the field environment, polyurethane jacket 1 on the outside of sleeve pipe 3 can adjust to realize the buffering to oppressive force by the deformation of itself, coupling part between polyurethane jacket 1 and sleeve pipe 3 is separated into multiple projections being distributed in a ring by i.e. multiple dashpots 2, when the outer wall stress of polyurethane jacket 1, projection can be deformed upon in adjacent two dashpots 2, i.e. to the left or to the right again or while both sides produce bending to the left and right, the interaction of the elastic force produced when pressure replys deformation with projection, so that the pressure actually born on sleeve pipe 3 is substantially reduced, the optical fiber 4 avoided inside sleeve pipe 3 is oppressed impaired, improve optical cable service life in the field environment.Wherein, the both sides of the dashpot 2 and bottom bend, so that in 1 stress of polyurethane jacket, there is deformation step by step in projection, by bend camber side wall and bottom on form transition arc, increase the tension force of raised sides wall, and then reduce the situation generation that crackle occurs in stress in polyurethane jacket 1, improve the anti-pressure ability of optical cable.
When optical cable is connected with external equipment, generally optical cable is built-in with the optical fiber 4 of more than three, and 7 end of tear rope being arranged in dashpot 2 is extended outside polyurethane jacket 1, according to actual needs, operator can select 1 divided number of polyurethane jacket according to the way of connection line, direction traction tear rope 7 i.e. firmly along polyurethane jacket 1 radially, so that tear rope 7 carries out local segmentation to polyurethane jacket 1, sleeve pipe 3 is carried out into peeling process by operator again, so that need the optical fiber 4 that is attached it is rapid it is exposed out, and then shorten the time of optical cable peeling, the efficiency of optical cable arrangement is provided.Tear rope 8 is additionally provided between two adjacent optical fiber 4, the effect of the tear rope 7 between two adjacent optical fiber 4 acts on identical with the tear rope 7 in dashpot 2, drawing tear rope 7 quickly can carry out Fast Segmentation by polyurethane jacket 1 and sleeve pipe 3, ensure the quick exposed of optical fiber 4, facilitate the connection of optical fiber.
Wherein, the axial depth of dashpot 2 directly influences the buffering effect of the oppressive force to external world of polyurethane jacket 1, and its radial depth to be set to the present invention 3/5ths of 1 thickness of polyurethane jacket, can then realize that polyurethane jacket 1 is maximized to the buffering effect of pressure, as the radial depth less than 1 thickness of polyurethane jacket 3/5ths, the buffering effect of dashpot 2 is not good, is easily caused sleeve pipe 3 and is stressed directly and breakage occur with optical fiber 4；As the radial depth more than 1 thickness of polyurethane jacket 3/5ths, polyurethane jacket 1 intensity decreases of itself are easily pierced through by extraneous sharp object.
Preferably, steel wire rope is interference fit with dashpot 2, while 2 normal work of dashpot is not affected, the Fast Segmentation to polyurethane jacket 1 is capable of achieving using the toughness and intensity of its own, improves the joint efficiency of optical cable.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; it is be should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included within the scope of the present invention.
Claims (4)
1. outdoor optical cable, including sleeve pipe（3）, it is characterised in that：In described sleeve pipe（3）Outer wall on be arranged with polyurethane jacket（1）, in the polyurethane jacket（1）Multiple dashpots are provided with along its axial direction on inwall（2）, the dashpot（2）Two side towards away from its center direction bend, dashpot（2）Bottom then along the polyurethane jacket（1）Radially expansion, in sleeve pipe（3）It is internally provided with multiple optical fiber（4）, multiple optical fiber（4）It is stranded in positioned at sleeve pipe in the shape of a spiral（3）The aramid fiber pipe at middle part（6）On, and in described sleeve pipe（3）With aramid fiber pipe（6）Between filled with fine cream（5）；Also include multiple tear ropes（7）, the tear rope（7）It is placed in dashpot（2）And interference fit therewith.
2. outdoor optical cable according to claim 1, it is characterised in that：In two adjacent optical fiber（4）Between be additionally provided with tear rope（8）.
3. outdoor optical cable according to claim 1, it is characterised in that：The dashpot（2）Radial depth be the polyurethane jacket（1）3/5ths of thickness.
4. outdoor optical cable according to claim 1, it is characterised in that：The tear rope（7）For steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636578.0A CN106556904A (en) | 2015-09-30 | 2015-09-30 | Outdoor optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636578.0A CN106556904A (en) | 2015-09-30 | 2015-09-30 | Outdoor optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106556904A true CN106556904A (en) | 2017-04-05 |
Family
ID=58416054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510636578.0A Pending CN106556904A (en) | 2015-09-30 | 2015-09-30 | Outdoor optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106556904A (en) |
-
2015
- 2015-09-30 CN CN201510636578.0A patent/CN106556904A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170405 |
|
| WD01 | Invention patent application deemed withdrawn after publication |