CN204205014U - The compound leaky coaxial cable of embedded optical cable - Google Patents
The compound leaky coaxial cable of embedded optical cable Download PDFInfo
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- CN204205014U CN204205014U CN201420688762.0U CN201420688762U CN204205014U CN 204205014 U CN204205014 U CN 204205014U CN 201420688762 U CN201420688762 U CN 201420688762U CN 204205014 U CN204205014 U CN 204205014U
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- optical cable
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Abstract
The utility model relates to the compound leaky coaxial cable of a kind of embedded optical cable, compare single leaky coaxial cable product, both remained all properties advantage that leaky coaxial cable possesses, and also add properties of optical fiber cable advantage simultaneously.The compound leaky coaxial cable of embedded optical cable, is characterized in that: comprise optical cable, bundle line copper pipe, polyethylene foam insulating barrier, fluting copper strips and polyolefin oversheath; In bundle line copper pipe, be enclosed with optical cable, squeeze outward at bundle line copper pipe and protected polyethylene foam insulating barrier, wrap up one deck fluting copper strips in the outside of polyethylene foam insulating barrier, have polyolefin oversheath at the outside extrusion molding of fluting copper strips.The compound leaky coaxial cable of embedded optical cable of the present utility model is by embedded optical cable, reasonably combine, formed composite structured, ensure that the electric property that this cable had both possessed leaky coaxial cable and possesses, increasing again the electric property that optical cable possesses, is the new product of Mobyneb.
Description
Technical field
The utility model relates to the compound leaky coaxial cable of a kind of embedded optical cable, compare single leaky coaxial cable product, both remained all properties advantage that leaky coaxial cable possesses, and also add properties of optical fiber cable advantage simultaneously.Adopt the embedded design of optical cable, optical cable, in the process of transmitting optical signal, has a metastable external environment, decreases the impact that external environment uncertain factor causes simultaneously.Effectively ensure that reliable, the stable transfer of light signal information.Leaky coaxial cable, in enclosed environment, can utilize the performance advantage of optical cable fully, and the effective environment changing inner wire, improves the speed of transmission, reduces attenuation.Thus the compound leaky coaxial cable of embedded optical cable related to is invented.
Background technology
Conventional leaky coaxial cable, can meet the electromagnetic field having effect spread to provide enough large that signal is carried out in the blind area of propagating as mountain area, hills, tunnel, subterranean railway, mine, underground structure, market or other electromagnetic field substantially.But because part public arena had both needed leaky coaxial cable to need electromagnetic field environment to provide communication, also needed optical cable to be conveyed through light signal.And at this environment in similar market, very limited for the spatial area laying cable, do not meet and leaky coaxial cable and optical cable are installed simultaneously.In order to solve this difficult problem, developing a kind of embedded cable type leaky coaxial cable, meeting the demand of market diversification.
Summary of the invention
The utility model object provides a kind of embedded optical cable compound leaky coaxial cable for above weak point, in order to realize electromagnetic field propagating electrical signals and light signal propagates diversified demand simultaneously, the compound leaky coaxial cable of embedded optical cable of the present utility model is by embedded optical cable, reasonably combine, formed composite structured, ensure that the electric property that this cable had both possessed leaky coaxial cable and possesses, increasing again the electric property that optical cable possesses, is the new product of Mobyneb.
The compound leaky coaxial cable of the embedded optical cable of the utility model is achieved through the following technical solutions:
The compound leaky coaxial cable of embedded optical cable comprises optical cable, bundle line copper pipe, polyethylene foam insulating barrier, fluting copper strips and polyolefin oversheath; In bundle line copper pipe, be enclosed with optical cable, squeeze outward at bundle line copper pipe and protected polyethylene foam insulating barrier, wrap up one deck fluting copper strips in the outside of polyethylene foam insulating barrier, have polyolefin oversheath at the outside extrusion molding of fluting copper strips.
Described optical cable comprises center strengthening core, fiber unit, painting plastic-al pipe and outer protective polyethylene cover; Around the strengthening core of center, be surrounded with single fiber unit, wrap up one deck in the outside of fiber unit and be coated with plastic-al pipe, be coated with the outside extrusion molding layer of polyethylene oversheath of plastic-al pipe.The center of optical cable is provided with strengthening core, be convenient to single fiber cable around, increase the intensity of optical cable and leaky coaxial cable simultaneously.
Embedded optical cable compound leaky coaxial cable manufacture method step is as follows:
1. optical cable can according to the needs of client, can be made up of simple optical fiber unit or multifiber unit, single fiber unit is surrounded with around the strengthening core of center, wrap up one deck in the outside of fiber unit and be coated with plastic-al pipe, be coated with the outside extrusion molding layer of polyethylene oversheath of plastic-al pipe, requiring that the external diameter of optical cable is less than the internal diameter pricking line copper pipe and just can meets the demands.
2. prick line copper pipe by copper belt after trimming, cross that U-type groove is shaping bends to toroidal, optical cable is wrapped in inside, and be welded into closed copper pipe through argon arc welding gas welding manner, smooth copper pipe is made to be bundled into the copper pipe of spiral annular through eccentric mode of pricking line, require that the problem of rosin joint can not appear in weld seam, the thickness of copper strips will meet standard; Prick crest, the trough of line shaping, pitch will within strict control overflow.
3., after bundle line copper pipe has been produced, continued to carry out extruded polyethylene foaming insulation layer at physical blowing production line.First squeeze endodermis material, endodermis materials'use low density polyethylene (LDPE) in the outside pricking line copper pipe, control to cross head at 140 DEG C ~ 200 DEG C at endothelium Extruder temperature, directly squeeze the outside protected and prick line copper pipe, form endodermis, then at the outer cohering ethene foaming insulation layer of endodermis, polyethylene foam insulating layer material is the compound of low density polyethylene (LDPE), high density polyethylene (HDPE) and nucleator, and low density polyethylene (LDPE), high density polyethylene (HDPE) and nucleator weight percent proportioning are respectively 74:25:1, described nucleator adopts polyethylene nucleator, compound is high pressure nitrogen injection or carbon dioxide under 130 DEG C ~ 200 DEG C molten conditions, in the rotation of screw rod, under shear action, molten plastic and gas are fully mixed, molten polyethylene mixture and gas are mixed into core, foaming mixture is extruded uniformly and stably by extrusion head, be coated to the above-mentioned outside being extruded with the bundle line copper pipe of endodermis, form polyethylene foam insulating barrier, Extruder temperature controls at 130 DEG C ~ 200 DEG C, cross head through hot water storgae temperature 35 DEG C ~ 40 DEG C coolings, again through cold rinse bank 20 DEG C ~ 30 DEG C coolings, through drying up, finally around on dish tool, require can not occur abscess between endodermis and polyethylene foam insulating barrier, polyethylene foam insulating barrier smooth outer surface, rounding, without bulge, the degree of eccentricity and ovality≤4%.
4. fluting copper strips manufacturing process, slot copper strips through automatic punch machine by the trench structure designed in advance, with size punching, punching pitch variation ± 0.15mm, poor in punching ± 0.2mm, the complete impulse-free robustness of slotted eye, copper non-oxidation, according to client's different performance demand, select corresponding grooved, the separation rushed and stroke must within the scopes required
5. vertical bag, extrusion molding integration is carried out at sheathing line, the polyethylene foam insulating barrier that physical blowing is produced, by pay off rack through traction, through arc-shaped grooves device before extrusion head, fluting copper strips is allowed to wrap tightly in the outside of polyethylene foam insulating barrier, by vertical bag, the mode of extrusion molding integration extrudes polyolefin oversheath in the outside of fluting copper strips, use polyolefin, extrusion temperature controls at 120-160 DEG C, from head out after, first through hot water storgae, temperature controls 35 DEG C ~ 40 DEG C coolings, again through cold rinse bank, temperature controls 20 DEG C ~ 30 DEG C and cools, through drying up, polyolefin oversheath is formed in the outside of fluting copper strips, around on stranding dish, make embedded compound leaky coaxial cable.
The polyolefin surface of outer sheath of embedded compound leaky coaxial cable requires should be complete, without hole, breaks.
The compound leaky coaxial cable of the embedded optical cable of the utility model and preparation method thereof feature:
Compound leaky coaxial cable of embedded optical cable that the utility model relates to and preparation method thereof is main from the viewpoint of meeting market diversification, and compound leaky coaxial cable can have the wider market space, realizes multi-purpose.
1. adopt the embedded design of optical cable, optical cable, in the process of transmitting optical signal, has a metastable external environment, decreases the impact that external environment uncertain factor causes.Effectively ensure that reliable, the stable transfer of light signal information;
2. solve part place and a difficult problem of installing leaky coaxial cable and optical cable place cannot be provided due to limited space simultaneously;
3. embedded optical cable can strengthen the mechanical hardness of leaky coaxial cable, is not easy to be crushed;
4. save and install fixing jig required for optical cable and other annex, consider from market economy angle, advantageously, the compound leaky coaxial cable of embedded optical cable of comparing is subject to the welcome of client more than the combination of originally single leakage coaxial point and optical cable.
Accompanying drawing explanation
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 is the compound leaky coaxial cable structural representation of the embedded optical cable of the utility model.
Fig. 2 is the cable configuration schematic diagram of the compound leaky coaxial cable of the embedded optical cable of the utility model
Fig. 3 is the embedded optical cable of the utility model compound leaky coaxial cable manufacture method process chart.
Embodiment
For further setting forth the utility model for reaching predetermined goal of the invention and the technological means taked and effect, below in conjunction with accompanying drawing and preferred embodiment, be described according to the embodiment of the compound leaky coaxial cable of embedded optical cable that the utility model proposes and preparation method thereof, structure.
With reference to accompanying drawing 1,2,3, the compound leaky coaxial cable of embedded optical cable comprises optical cable 1, bundle line copper pipe 2, polyethylene foam insulating barrier 3, fluting copper strips 4 and polyolefin oversheath 5; In bundle line copper pipe 2, be enclosed with optical cable 1, protected polyethylene foam insulating barrier outer the squeezing of bundle line copper pipe 2, wrapped up one deck fluting copper strips 4 in the outside of polyethylene foam insulating barrier 3, have polyolefin oversheath at the outside extrusion molding of fluting copper strips 4.
Described optical cable 1 comprises center strengthening core 1-1, fiber unit 1-2, is coated with plastic-al pipe 1-3 and outer protective polyethylene cover 1-4; Around the strengthening core 1-1 of center, be surrounded with single fiber unit 1-2, wrap up one deck in the outside of fiber unit 1-2 and be coated with plastic-al pipe 1-3, be coated with the outside extrusion molding layer of polyethylene oversheath 1-4 of plastic-al pipe 1-3.Be provided with center strengthening core 1-1 at the center of optical cable 1, be convenient to single fiber cable around, increase the intensity of optical cable and leaky coaxial cable simultaneously.
With reference to accompanying drawing 1,2,3, embedded optical cable compound leaky coaxial cable manufacture method step is as follows:
1. optical cable can according to the needs of client, can be made up of simple optical fiber unit or multifiber unit, single fiber unit is surrounded with around the strengthening core of center, wrap up one deck in the outside of fiber unit and be coated with plastic-al pipe, be coated with the outside extrusion molding layer of polyethylene oversheath of plastic-al pipe, requiring that the external diameter of optical cable is less than the internal diameter pricking line copper pipe and just can meets the demands.
2. prick line copper pipe by copper belt after trimming, U-type groove is shaping excessively bends to toroidal, optical cable is wrapped in inside, and is welded into closed copper pipe through argon arc welding gas welding manner.Make smooth copper pipe be bundled into the copper pipe of spiral annular through eccentric mode of pricking line, require that the problem of rosin joint can not appear in weld seam.The thickness of copper strips will meet standard; Prick crest, the trough of line shaping, pitch will within strict control overflow.
3., after bundle line copper pipe has been produced, continued to carry out extruded polyethylene foaming insulation layer at physical blowing production line.First squeeze endodermis material, endodermis materials'use low density polyethylene (LDPE) in the outside pricking line copper pipe, control to cross head at 140 DEG C ~ 200 DEG C at endothelium Extruder temperature, directly squeeze the outside protected and prick line copper pipe, form endodermis, then at the outer cohering ethene foaming insulation layer of endodermis, polyethylene foam insulating layer material is the compound of low density polyethylene (LDPE), high density polyethylene (HDPE) and nucleator, and low density polyethylene (LDPE), high density polyethylene (HDPE) and nucleator weight percent proportioning are respectively 74:25:1, described nucleator adopts polyethylene nucleator, compound is high pressure nitrogen injection or carbon dioxide under 130 DEG C ~ 200 DEG C molten conditions, in the rotation of screw rod, under shear action, molten plastic and gas are fully mixed, molten polyethylene mixture and gas are mixed into core, foaming mixture is extruded uniformly and stably by extrusion head, be coated to the above-mentioned outside being extruded with the bundle line copper pipe of endodermis, form polyethylene foam insulating barrier, Extruder temperature controls at 130 DEG C ~ 200 DEG C, cross head through hot water storgae temperature 35 DEG C ~ 40 DEG C coolings, again through cold rinse bank 20 DEG C ~ 30 DEG C coolings, through drying up, finally around on dish tool, require can not occur abscess between endodermis and polyethylene foam insulating barrier, polyethylene foam insulating barrier smooth outer surface, rounding, without bulge, the degree of eccentricity and ovality≤4%.
4. fluting copper strips manufacturing process, slot copper strips through automatic punch machine by the trench structure designed in advance, with size punching, punching pitch variation ± 0.15mm, poor in punching ± 0.2mm, the complete impulse-free robustness of slotted eye, copper non-oxidation, according to client's different performance demand, select corresponding grooved, the separation rushed and stroke must within the scopes required.
5. vertical bag, extrusion molding integration is carried out at sheathing line, the polyethylene foam insulating barrier that physical blowing is produced, by pay off rack through traction, through arc-shaped grooves device before extrusion head, fluting copper strips is allowed to wrap tightly in the outside of polyethylene foam insulating barrier, by vertical bag, the mode of extrusion molding integration extrudes polyolefin oversheath in the outside of fluting copper strips, use polyolefin, extrusion temperature controls at 120-160 DEG C, from head out after, first through hot water storgae, temperature controls 35 DEG C ~ 40 DEG C coolings, again through cold rinse bank, temperature controls 20 DEG C ~ 30 DEG C and cools, through drying up, polyolefin oversheath 5 is formed in the outside of fluting copper strips, around on stranding dish, make embedded compound leaky coaxial cable.
The polyolefin surface of outer sheath of embedded compound leaky coaxial cable requires should be complete, without hole, breaks.
Above-mentioned embodiment of the present utility model is not to restriction of the present utility model; those skilled in the art can according to user demand; the structure of the multimode of optical cable is different with according to copper strips grooved; produce a kind of embedded compound leaky coaxial cable of new construction; therefore; do not depart from change and the change of the utility model essence, all should within protection range of the present utility model.
Claims (2)
1. the compound leaky coaxial cable of embedded optical cable, is characterized in that: comprise optical cable, bundle line copper pipe, polyethylene foam insulating barrier, fluting copper strips and polyolefin oversheath; In bundle line copper pipe, be enclosed with optical cable, squeeze outward at bundle line copper pipe and protected polyethylene foam insulating barrier, wrap up one deck fluting copper strips in the outside of polyethylene foam insulating barrier, have polyolefin oversheath at the outside extrusion molding of fluting copper strips.
2. the compound leaky coaxial cable of embedded optical cable according to claim 1, is characterized in that: described optical cable comprises center strengthening core, fiber unit, painting plastic-al pipe and outer protective polyethylene cover; Around the strengthening core of center, be surrounded with single fiber unit, wrap up one deck in the outside of fiber unit and be coated with plastic-al pipe, be coated with the outside extrusion molding layer of polyethylene oversheath of plastic-al pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688762.0U CN204205014U (en) | 2014-11-18 | 2014-11-18 | The compound leaky coaxial cable of embedded optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688762.0U CN204205014U (en) | 2014-11-18 | 2014-11-18 | The compound leaky coaxial cable of embedded optical cable |
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| Publication Number | Publication Date |
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| CN204205014U true CN204205014U (en) | 2015-03-11 |
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| CN201420688762.0U Expired - Fee Related CN204205014U (en) | 2014-11-18 | 2014-11-18 | The compound leaky coaxial cable of embedded optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078428A1 (en) * | 2014-11-18 | 2016-05-26 | 中天日立射频电缆有限公司 | Optical cable-embedded composite leaky coaxial cable and manufacturing method thereof |
-
2014
- 2014-11-18 CN CN201420688762.0U patent/CN204205014U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016078428A1 (en) * | 2014-11-18 | 2016-05-26 | 中天日立射频电缆有限公司 | Optical cable-embedded composite leaky coaxial cable and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226010 Nantong Province Economic and Technological Development Zone, the New South Road, No. 1, No. Patentee after: Zhongtian RF cable Co., Ltd. Address before: 226010 Nantong Province Economic and Technological Development Zone, the New South Road, No. 1, No. Patentee before: Zhongtian Rili Rf Cable Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20181118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |