CN105445874A - Double-layer loose sleeve optical cable and preparation method - Google Patents
Double-layer loose sleeve optical cable and preparation method Download PDFInfo
- Publication number
- CN105445874A CN105445874A CN201510837248.8A CN201510837248A CN105445874A CN 105445874 A CN105445874 A CN 105445874A CN 201510837248 A CN201510837248 A CN 201510837248A CN 105445874 A CN105445874 A CN 105445874A
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- Prior art keywords
- optical cable
- fibers
- support frame
- groove
- outer fibers
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Classifications
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- 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
- G02B6/4407—Optical cables with internal fluted support member
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4482—Code or colour marking
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a double-layer loose sleeve optical cable and a preparation method. The double-layer loose sleeve optical cable comprises a support skeleton made of a polyurethane material; the middle part of the support skeleton is a hollowed inner cavity; the inner cavity is internally provided with an inner side optical fiber; the circumference of the support skeleton is axially and uniformly provided with grooves matching with the quantity of the optical fibers on the outside; the inside of the groove is provided with an outer side optical fiber; the outside of the support skeleton is wrapped by the loose sleeve as a whole to seal all the openings of the grooves; a water resistance fiber paste is filled between the inner cavity and the inner side optical fiber and between the groove and the outer side optical fiber. The invention has advantages that the middle part can be opened, the double layer tensile strength is strong, light in weight and strong in bending, and good in water resistance and pressure resistance.
Description
Technical field
The present invention relates to a kind of two-layer equation loosely shielded optical cable and preparation method thereof.
Background technology
At present, common loosely shielded optical cable adopts Loose tube to wear optical fiber substantially, the fine cream of filling in Loose tube, aramid yarn is laid in sleeve pipe periphery in order to increase resistance to tension, and this type of loosely shielded optical cable domestic production technical merit maturation very, constantly extend to Fibre Optical Sensor industry along with loosely shielded optical cable market, its can in the middle of can the loosely shielded optical cable market demand of windowing day by day heat up.Centre can not only require to offer in the middle of loosely shielded optical cable to choose fine window by windowing loosely shielded optical cable, and requires that many many places are offered separately and choose fine window, simultaneously must not damaging internal optical fiber, can identify again the inner multifiber particular location of loosely shielded optical cable.Offers the oversheath that window will destroy optical cable in the middle of loosely shielded optical cable, make outside optical cable inner structure or optical fiber is exposed to, will the reliability of optical cable be reduced.When general loosely shielded optical cable offers window; first internal optical fiber is easy to be damaged or cut off; next is that cable jacket is destroyed; internal optical fiber is exposed tension and the compressive strength reducing optical cable outside all; be unfavorable for the protection of optical fiber; moreover be that in optical cable, a large amount of ointment will overflow in a large number, reduce the reliability of optical cable.General loosely shielded optical cable will forbid that window is offered in centre, loosely shielded optical cable market being offered window is generally that bending radius is excessive, miniaturization, lightweight cannot be accomplished, in addition, loosely shielded optical cable again can not intensive offer window, offering as forced will havoc optical cable inner structure, has a strong impact on the tensile strength of loosely shielded optical cable, and be easy to destroy internal optical fiber, cause whole piece optical cable to be scrapped.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and defect and provide a kind of in the middle of can windowing, double-deck tensile strength is strong, lightweight, bending resistance strong, to block water, two-layer equation loosely shielded optical cable that resistance to pressure is good and preparation method thereof simultaneously.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of two-layer equation loosely shielded optical cable, comprise the support frame made by wear-resistant pressure-resistant material, it is hollow inner chamber in the middle part of described support frame, inner fibers is provided with in described inner chamber, described support frame be circumferentially evenly laid with the groove matched with outer fibers quantity vertically, be provided with outer fibers in described groove, outside described support frame, entirety is enclosed with the opening that Loose tube seals described groove, all fills the fine cream that blocks water between described inner chamber and inner fibers and between groove and outer fibers.
Described in every root, outer fibers different colours, and the outside of described Loose tube arranges at least one marking line identical with corresponding position outer fibers color in outer fibers corresponding position.
Described groove is U-type groove.
Described external sheath layer external diameter is 3.5mm.
Described wear-resistant pressure-resistant material is MPU material, TPU material, CPU material, PPT material or PBT material.
A preparation method for two-layer equation loosely shielded optical cable, comprises the steps:
Every root optical fiber of outer fibers different colours by a, first employing optical fiber coloring machine;
B, by high temperature extrusion machine wear-resistant pressure-resistant material to be wrapped in outside inner fibers and to form described support frame;
C, employing high-pressure injection machine fill the fine cream that blocks water between inner fibers and the inner chamber of support frame;
Outer fibers is laid in the groove of support frame by d, employing optical fiber cloth fibre machine, adopts high temperature extrusion machine to utilize polyurethane material to be wrapped in pine cover cable core peripheral formation Loose tube;
E, adopt optical cable Marking machine in the outside of Loose tube, outer fibers corresponding position arranges at least one marking line identical with corresponding position outer fibers color;
F, adopt many heads high-pressure injection machine inside outer fibers and support frame groove and Loose tube between filling to block water fine cream.
Described inner fibers and outer fibers are extraordinary single-mode fiber (as utter misery single-mode fiber or counter-bending single-mode fiber or thin through counter-bending single-mode fiber), single-mode fiber or multimode optical fiber.
Polyurethane material in described steps d adopts EU.
Owing to adopting such scheme, optical cable outer jacket adopts easily cutting, wear-resisting polyurethane material, middle part adopts support frame to support, thus two-layer equation optical cable is after window is longitudinally offered in centre, enough anchorage forces are had to ensure tension and the compressive strength of optical cable, and by the protection of support frame when windowing, well protect internal optical fiber, prevent damage or the cut-out of internal optical fiber, choose internal optical fiber, and can ensure not lose internal optical fiber, and having had the support of support frame to ensure that enough anchorage forces, optical cable overall diameter can control within 3.5mm; Sign on optical cable, effectively can find out the particular location of required optical fiber; Optical cable adopts support frame to be isolated into inside and outside two-layer optical fiber layer, and it is divided into internal layer Transmission Fibers layer and skin to window choosing fine optical fiber layer, and the use-patterns such as ectonexine optical fiber can be replaced mutually, serial exchange, effectively can utilize conduit resource; In fibre optic installations chamber, inject the fine cream that blocks water, can effectively block water gear tide; Optical cable overall diameter controls within 3.5mm, and external diameter is little, fully effectively utilizes space, lightweight, and make simple, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of this patent.
As shown in Figure 1, a kind of two-layer equation loosely shielded optical cable, comprise one or more inner fibers 3, support frame inner chamber 5, support frame 1, support frame U-type groove 6, outer fibers 2, Loose tube 4, inner side and outer side optical fiber is according to red, orange, yellow, green, blue or green, blue, purple, black, in vain, brown, powder, the GB colors such as ash are carried out painted, inner fibers 3 bundle is embedded in support frame inner chamber 5, the fine cream 7 that blocks water is filled inside support frame inner chamber 5 and between optical fiber, outer fibers 2 is according to red, orange, yellow, green, blue or green, blue, purple, black, in vain, brown, powder, the color sequences such as ash are embedded in support frame U-type groove 6, Loose tube 4 is coated with outside support frame 1, between inside optical fiber and support frame U-type groove 6 and Loose tube 4, filling blocks water fine cream 7, the red marking line 8 of the outer corresponding outside red fiber position silk-screen longitudinal direction of Loose tube 4 xsect.
Its preparation method, comprises following technique:
A, in such scheme, fiber type is divided into utter misery single-mode fiber, counter-bending single-mode fiber and thin through counter-bending single-mode fiber, and structure is divided into single mode 125/250 μm, single mode 80/160 μm;
B, adopt optical fiber coloring machine according to the color dyes optical fiber such as red, orange, yellow, green, blue, blue, purple, black, white, brown, powder, ash;
Teflon ETFE extruded by the high temperature extrusion machine of c, employing support frame mould, is wrapped on inner fibers 3 and forms support frame 1, as embedded fibre core, and embedded fibre core external diameter 3mm;
D, adopt high-pressure injection machine inside inner fibers 3 and support frame inner chamber 5 between fill the fine cream 7 that blocks water;
Outer fibers 2 cloth is placed in support frame U-type groove 6 by e, the fine machine of employing optical fiber cloth, as pine cover cable core;
EU TPU extruded by f, employing high temperature extrusion machine, is wrapped in pine cover cable core peripheral, as external sheath layer, and external sheath layer external diameter 3.5mm;
G, employing optical cable Marking machine are at the red marking line 8 of the outer corresponding outside red fiber position silk-screen longitudinal direction of Loose tube 4 xsect; Adopt many heads high-pressure injection machine inside optical fiber and support frame U-type groove 6 and Loose tube 4 between filling to block water fine cream 7, such fiber optic cable production completes.
Claims (9)
1. a two-layer equation loosely shielded optical cable, it is characterized in that, comprise the support frame made by wear-resistant pressure-resistant material, it is hollow inner chamber in the middle part of described support frame, inner fibers is provided with in described inner chamber, described support frame be circumferentially evenly laid with the groove matched with outer fibers quantity vertically, outer fibers is provided with in described groove, outside described support frame, entirety is enclosed with the opening that Loose tube seals described groove, all fills the fine cream that blocks water between described inner chamber and inner fibers and between groove and outer fibers.
2. two-layer equation loosely shielded optical cable according to claim 1, is characterized in that, described in every root, outer fibers different colours, and the outside of described Loose tube arranges at least one marking line identical with corresponding position outer fibers color in outer fibers corresponding position.
3. two-layer equation loosely shielded optical cable according to claim 1 and 2, is characterized in that, described groove is U-type groove.
4. two-layer equation loosely shielded optical cable according to claim 3, is characterized in that, described external sheath layer external diameter is 3.5mm.
5. two-layer equation loosely shielded optical cable according to claim 1, is characterized in that, described wear-resistant pressure-resistant material is MPU material, TPU material, CPU material, PPT material or PBT material.
6. a preparation method for two-layer equation loosely shielded optical cable, makes the two-layer equation loosely shielded optical cable that one of claim 1 to 5 is described, it is characterized in that, comprise the steps:
Every root optical fiber of outer fibers different colours by a, first employing optical fiber coloring machine;
B, by high temperature extrusion machine wear-resistant pressure-resistant material to be wrapped in outside inner fibers and to form described support frame;
C, employing high-pressure injection machine fill the fine cream that blocks water between inner fibers and the inner chamber of support frame;
Outer fibers is laid in the groove of support frame by d, employing optical fiber cloth fibre machine, adopts high temperature extrusion machine to utilize polyurethane material to be wrapped in pine cover cable core peripheral formation Loose tube;
E, adopt optical cable Marking machine in the outside of Loose tube, outer fibers corresponding position arranges at least one marking line identical with corresponding position outer fibers color;
F, adopt many heads high-pressure injection machine inside outer fibers and support frame groove and Loose tube between filling to block water fine cream.
7. the preparation method of two-layer equation loosely shielded optical cable according to claim 6, is characterized in that: described inner fibers and outer fibers are extraordinary single-mode fiber, single-mode fiber or multimode optical fiber.
8. the preparation method of two-layer equation loosely shielded optical cable according to claim 7, is characterized in that: described extraordinary single-mode fiber is as utter misery single-mode fiber or counter-bending single-mode fiber or thin through counter-bending single-mode fiber.
9. the preparation method of two-layer equation loosely shielded optical cable according to claim 8, is characterized in that: the polyurethane material in described steps d adopts EU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837248.8A CN105445874A (en) | 2015-11-25 | 2015-11-25 | Double-layer loose sleeve optical cable and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837248.8A CN105445874A (en) | 2015-11-25 | 2015-11-25 | Double-layer loose sleeve optical cable and preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN105445874A true CN105445874A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510837248.8A Pending CN105445874A (en) | 2015-11-25 | 2015-11-25 | Double-layer loose sleeve optical cable and preparation method |
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| CN (1) | CN105445874A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577016A (en) * | 2017-10-03 | 2018-01-12 | 于洋 | Cable configuration |
| CN108061951A (en) * | 2018-01-12 | 2018-05-22 | 西安西古光通信有限公司 | A kind of slotted core fiber ribbon cable |
| CN110398809A (en) * | 2019-07-26 | 2019-11-01 | 江苏亨通光电股份有限公司 | A kind of dragging optical cable and preparation method thereof |
| CN113325533A (en) * | 2021-05-25 | 2021-08-31 | 长飞光纤光缆股份有限公司 | Skeleton type optical fiber ribbon optical cable |
| CN114185141A (en) * | 2022-02-15 | 2022-03-15 | 长飞光纤光缆股份有限公司 | Framework groove type optical cable framework processing method and device and framework groove type optical cable |
| CN114325989A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | High-temperature-resistant optical cable and production process thereof |
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| CN200983289Y (en) * | 2006-12-08 | 2007-11-28 | 昆山火凤凰线缆有限公司 | Photoelectrical wide fireproof cable of mine insulation metal cover |
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| CN200983289Y (en) * | 2006-12-08 | 2007-11-28 | 昆山火凤凰线缆有限公司 | Photoelectrical wide fireproof cable of mine insulation metal cover |
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| CN203337878U (en) * | 2013-07-09 | 2013-12-11 | 昆明华视讯网络科技有限公司 | Skeleton type loose-tube optical cable |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107577016A (en) * | 2017-10-03 | 2018-01-12 | 于洋 | Cable configuration |
| CN108061951A (en) * | 2018-01-12 | 2018-05-22 | 西安西古光通信有限公司 | A kind of slotted core fiber ribbon cable |
| CN108061951B (en) * | 2018-01-12 | 2023-09-22 | 西安西古光通信有限公司 | Skeleton type optical fiber ribbon optical cable |
| CN110398809A (en) * | 2019-07-26 | 2019-11-01 | 江苏亨通光电股份有限公司 | A kind of dragging optical cable and preparation method thereof |
| CN113325533A (en) * | 2021-05-25 | 2021-08-31 | 长飞光纤光缆股份有限公司 | Skeleton type optical fiber ribbon optical cable |
| CN113325533B (en) * | 2021-05-25 | 2022-02-18 | 长飞光纤光缆股份有限公司 | Skeleton type optical fiber ribbon optical cable |
| CN114325989A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | High-temperature-resistant optical cable and production process thereof |
| CN114185141A (en) * | 2022-02-15 | 2022-03-15 | 长飞光纤光缆股份有限公司 | Framework groove type optical cable framework processing method and device and framework groove type optical cable |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 410100 5 East three road, Changsha Economic Development Zone, Hunan Applicant after: GreatWall Information Industry Co., Ltd. Applicant after: Changsha HCC HIDEN Technology Co., Ltd. Applicant after: Hunan the Great Wall Hai Dun Optical Fiber Technology Co., Ltd. Address before: 410100 5 East three road, Changsha Economic Development Zone, Hunan Applicant before: GreatWall Information Industry Co., Ltd. Applicant before: Changsha HCC HIDEN Technology Co., Ltd. Applicant before: Hunan Haidun Optical Fiber Sensing Technology Engineering Laboratory Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160330 |