CN203982870U - A kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning - Google Patents
A kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning Download PDFInfo
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- CN203982870U CN203982870U CN201420334002.XU CN201420334002U CN203982870U CN 203982870 U CN203982870 U CN 203982870U CN 201420334002 U CN201420334002 U CN 201420334002U CN 203982870 U CN203982870 U CN 203982870U
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- voltage cable
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Abstract
The utility model discloses a kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning, comprise the light unit and the four electric power transfer heart yearns that be arranged in parallel, described electric power transfer heart yearn is positioned at the same side of light unit; Between adjacent two electric power transfer heart yearns, and be all connected by dowel between light unit and adjacent electric power transfer heart yearn, according to the direction from electric power transfer heart yearn to light unit, be followed successively by the first dowel, the second dowel, the 3rd dowel and the 4th dowel, the second dowel is provided with several perforates along its length.Parallel cluster type optical fiber composite low-voltage cable of the present utility model arranges some perforates on the second dowel, efficiently solves the problem of the parallel cluster type optical fiber composite low-voltage cable side's of returning difficulty in the time laying, and has reduced material consumption, has reduced cost.
Description
Technical field
The utility model relates to cable technology field, relates in particular to a kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning.
Background technology
Power optical fiber has merged the function of optical fiber communication and electric power transfer, in cabling, can complete fiber entering household.Power optical fiber can meet the needs of intelligent grid self-growth to family, can support again the integration of three networks comprehensively.Power optical fiber can be realized the Joint construction and sharing of network infrastructure to family, significantly reduce " integration of three networks " implementation cost, improves the comprehensive operation efficiency of network, has obvious advantage aspect energy-conserving and environment-protective.Optoelectronic composite cable is the application foundation of power optical fiber to family, places communication cable and power cable simultaneously, and make cable in transmitting optical signal, carry out electric power transfer in a cable.This cable, in the time of the laying-out of city, does not need optical cable and cable to lay respectively, takies urban duct few, saves construction cost.
Parallel cluster type optical fiber composite low-voltage cable is a kind of novel optoelectronic composite cable, is the cable of parallel compound light unit composition on parallel bunched overhead insulated cable, has communications optical cable and common parallel bundling aerial insulated cable function.In recent years, along with comprehensive startup that power optical fiber is built to family pilot project, parallel cluster type optical fiber composite low-voltage cable has also received more concern.The existing parallel clustering-type fiber composite low-voltage aerial insulated cable outside methods of squeezing insulation that adopt extrude a layer insulating as sheath in the outside of cable core and light unit more.
For easy to process, existing parallel cluster type optical fiber composite low-voltage cable adopts integrated design, between adjacent electric power transfer heart yearn, all adopt dowel to connect between light unit and adjacent electric power transfer heart yearn, and the insulating sleeve of between transmission heart yearn and light unit, and dowel all adopts identical material, so that realize while making once compressing.By dowel, the electric power transfer heart yearn in parallel cluster type optical fiber composite low-voltage cable and light unit are connected as one, be convenient on the one hand processing, on the other hand, be convenient to transport.In the time laying, need to, to the side's of the returning processing of parallel cluster type optical fiber composite low-voltage cable, because parallel cluster type optical fiber composite low-voltage cable adopts dowel integrated design, there is the problem of the side's of returning difficulty.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning.
An easily parallel cluster type optical fiber composite low-voltage cable for the side of returning, comprises the light unit and the four electric power transfer heart yearns that be arranged in parallel, and described electric power transfer heart yearn is positioned at the same side of light unit; Between adjacent two electric power transfer heart yearns, and be all connected by dowel between light unit and adjacent electric power transfer heart yearn, according to the direction from electric power transfer heart yearn to light unit, be followed successively by the first dowel, the second dowel, the 3rd dowel and the 4th dowel, the second dowel is provided with several perforates along its length.
Electric power transfer heart yearn is made up of the insulating barrier (insulating sleeve) of plain conductor and coated metal wire, according to actual needs, plain conductor is formed by common conductive copper wire core or the coiling of aluminium conductor wire core, conductive copper wire core should adopt the TY type circular copper wire meeting in GB/T3953, also can adopt TR type annealed copper wire, aluminium conductor wire core should adopt the firmly round aluminum steel of the LY9 type H9 state meeting in GB/T3955.Light unit is made up of the insulating protective layer (insulating sleeve) of optical fiber and parcel optical fiber.
Perforate can adopt the mode of punching to obtain after the moulding of parallel cluster type optical fiber composite low-voltage cable.For ease of one-shot forming, avoid post-production processing, also can in the time that preparing insulating sleeve, crowded insulation adopt the mould one-shot forming with corresponding construction to obtain.For obtaining there is perforate on the second dowel, must switch closing and open between two states corresponding to the discharging opening of the second dowel squeezing mould that insulation uses in preparing the process of insulating sleeve.Can complete closing and opening of discharging opening by baffle plate is set.And by the design of baffle shapes and the speed designs of closing or opening, prepare difform perforate.
In parallel cluster type optical fiber composite low-voltage cable of the present utility model, using the second dowel as crimp, in the time laying the side of returning, directly the second dowel place doubling is completed to the side of returning.Some perforates are set on the second dowel, and easily doubling, contributes to improve the side's of returning efficiency.Secondly by perforate is set, can save the material consumption of dowel, reduce production costs.Thickness and the width of each dowel (comprising the second dowel) are set flexibly according to model and the applicable cases of parallel cluster type optical fiber composite low-voltage cable.
Described perforate is oval aperture.
By elliptic design, can eliminate the stress that angular perforate exists and the problem that causes the second dowel easily to be torn in edges and corners.For ensureing that perforate has certain length along the length direction of parallel cluster type optical fiber composite low-voltage cable, make oval-shaped major axis be parallel to the length direction of parallel cluster type optical fiber composite low-voltage cable.
As preferably, the major axis of described ellipse is 15～30cm.
Oval minor axis is according to the width of the second dowel (perpendicular to the length of the length direction of long axis parallel cluster type optical fiber composite low-voltage cable) design.1/3～1/2 of the width that common minor axis is the second dowel of ellipse.
Distance on described the second dowel between adjacent two perforates is 15～30cm.
Distance definition between adjacent two perforates is the distance along two points nearest on optical fiber composite low-voltage cable length direction on two verge of openings.
As preferably, the second described dowel and adjacent two electric power transfer heart yearns are tangent.
By tangent to the second dowel and adjacent two electric power transfer heart yearns, and two electric power transfer heart yearns are positioned at the same face (the tangent plane of the second dowel and adjacent two electric power transfer heart yearns is the same face) of the second dowel.
The same face of the second described dowel is provided with two grooves.
Groove is positioned at one side corresponding to the second dowel tangent plane tangent with two electric power transfer heart yearns, while laying by the second dowel along two groove doublings, complete the side of returning.Two grooves are symmetrical with respect to the center line on the second dowel Width.
The openings of sizes of described groove is 3～5mm.
The distance of described two grooves is 5～8mm.
The distance of the openings of sizes of groove and two grooves is relevant according to the model of electric power transfer heart yearn (diameter).Wherein the distance definition of two grooves is the distance along two points nearest on optical fiber composite low-voltage cable length direction on two grooves.
Described groove is arc groove.For ensureing to obtain arc groove, the discharging opening that the second dowel is corresponding must carry out respective design.
The length of bow of described arc groove is 4～5mm.The second dowel thickness is limited, and in one timing of slot opening size, length of bow is larger, and the thickness of corresponding groove the second dowel is less, and more easily fracture prevents the dowel fracture that arc groove is corresponding, and the length of bow of arc groove can not be excessive.
Compared with prior art, parallel cluster type optical fiber composite low-voltage cable of the present utility model arranges some perforates on the second dowel, while processing in the side of returning, taking the second dowel as crimp, efficiently solve the problem of the parallel cluster type optical fiber composite low-voltage cable side's of returning difficulty in the time laying, and reduce material consumption, reduced the cost of parallel cluster type optical fiber composite low-voltage cable.
Brief description of the drawings
Fig. 1 is parallel cluster type optical fiber composite low-voltage cable cross sectional representation of the present utility model;
Fig. 2 is the structural representation of the second dowel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
An easily parallel cluster type optical fiber composite low-voltage cable for the side of returning, as shown in Figure 1, comprises the light unit 1 and the four electric power transfer heart yearns 2 that be arranged in parallel, and electric power transfer heart yearn 2 is positioned at the same side (one-tenth word order) of light unit 1; Light unit 1 and four electric power transfer heart yearns 2 are all provided with insulating sleeve 3, between adjacent two electric power transfer heart yearns 2, and be all connected by dowel between light unit 1 and adjacent electric power transfer heart yearn 2, according to the direction from electric power transfer heart yearn to light unit, be followed successively by the first dowel 41, the second dowel 42, the 3rd dowel 43 and the 4th dowel 44, the second dowel 42 is tangent with adjacent two electric power transfer heart yearns 2, and two electric power transfer heart yearns are positioned at the same face of the second dowel.The thickness of each dowel in the present embodiment (comprising the second dowel 42) is 10mm.
As shown in Figure 2, the second dowel 42 is provided with several perforates 5.In the present embodiment, the width of the second dowel 42 is 2cm, for ease of explanation, in Fig. 2, the width of the second dowel has been carried out to certain amplification.Distance on the second dowel 42 between adjacent two perforates 5 is 15cm.In the present embodiment, perforate 5 is oval aperture, prevents that the second dowel from tearing at tapping.The major axis of oval aperture 5 is parallel to the length direction (being the length direction of parallel cluster type optical fiber composite low-voltage cable) of the second dowel 42.The major axis of oval aperture 5 is 15cm, and minor axis is 3/4 of the second dowel 42 width, is 1.5cm.The distance of the electric power transfer heart yearn of oval aperture 5 to second dowel 42 both sides equates.Distance (distance of two points of distance minimum in two perforates) on the second dowel 42 between adjacent two perforates is 15cm.
The same face of the second dowel 42 is provided with two grooves 6, and groove 6 is positioned at the face that the second dowel is corresponding with the tangent plane of adjacent electric power transfer heart yearn.Two grooves are symmetrical with respect to the center line on the Width of the second dowel.Groove 6 is arc groove, and its openings of sizes is 5mm, and length of bow is 2mm, and the distance of two grooves is 5mm.
For ensureing to obtain arc groove, the corresponding discharging opening of the second dowel must carry out respective design.
In the time that parallel cluster type optical fiber composite low-voltage cable lays, conventionally need to carry out light separation, need to, by the insulating sleeve strip off of light unit, wherein each optical fiber be separated.For ease of by the insulating coating strip off of light unit, as shown in Figure 1, in the present embodiment, in the insulating sleeve 3 of light unit 1, be embedded with two wires 7, two wires 7 along being circumferentially symmetrically distributed in the insulating sleeve 3 of light unit 2.The diameter of metal wire is 2mm.Metal wire 7 extends to the outer 5cm of insulating sleeve along its length, to extend to part outside sheath as impetus, pulls the insulating sleeve 3 with metal wire cutting light unit 2.Preventing that metal wire from damaging light unit, between metal wire 7 and light unit, have certain distance, light unit is not directly contacted with metal wire, is 2mm in the present embodiment.
While laying the insulating sleeve of stripping light unit, directly fix metal wire 7 and extend to along its length the part outside insulating sleeve, pull along its length metal wire, and then obtain two symmetrical cracking mouths.Owing to having certain distance between metal wire 7 and light unit, also need further processing, insulating sleeve could be completed to strip off.Only 2mm of distance in the present embodiment between metal wire 7 and light unit, therefore, further pulls 2 crackings mouthful of generation to pull along metal wire, can be easily by complete insulating sleeve strip off.
Above-described embodiment has been described in detail the technical solution of the utility model and beneficial effect; be understood that and the foregoing is only most preferred embodiment of the present utility model; be not limited to the utility model; all any amendments of making within the scope of principle of the present utility model, supplement and be equal to replacement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. an easy parallel cluster type optical fiber composite low-voltage cable for the side of returning, comprises the light unit and the four electric power transfer heart yearns that be arranged in parallel, it is characterized in that, described electric power transfer heart yearn is positioned at the same side of light unit; Between adjacent two electric power transfer heart yearns, and be all connected by dowel between light unit and adjacent electric power transfer heart yearn, according to the direction from electric power transfer heart yearn to light unit, be followed successively by the first dowel, the second dowel, the 3rd dowel and the 4th dowel, the second dowel is provided with several perforates along its length.
2. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 1, is characterized in that, described perforate is oval aperture.
3. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 2, is characterized in that, the major axis of described oval aperture is 15～30cm.
4. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 3, is characterized in that, the distance on described the second dowel between adjacent two perforates is 15～30cm.
5. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 4, the second described dowel and adjacent two electric power transfer heart yearns are tangent.
6. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 5, is characterized in that, the same face of the second described dowel is provided with two grooves.
7. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 6, is characterized in that, the openings of sizes of described groove is 3～5mm.
8. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 7, is characterized in that, the distance of described two grooves is 5～8mm.
9. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 8, is characterized in that, described groove is arc groove.
10. the parallel cluster type optical fiber composite low-voltage cable of the easily side of returning as claimed in claim 9, is characterized in that, the length of bow of described arc groove is 4～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334002.XU CN203982870U (en) | 2014-06-20 | 2014-06-20 | A kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420334002.XU CN203982870U (en) | 2014-06-20 | 2014-06-20 | A kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning |
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| CN203982870U true CN203982870U (en) | 2014-12-03 |
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| CN201420334002.XU Active CN203982870U (en) | 2014-06-20 | 2014-06-20 | A kind of parallel cluster type optical fiber composite low-voltage cable of the easily side of returning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110931153A (en) * | 2019-12-06 | 2020-03-27 | 绍兴电力设备有限公司 | Fire-resistant optical fiber composite bunched cable and preparation method thereof |
| CN112485871A (en) * | 2019-09-11 | 2021-03-12 | 住友电气工业株式会社 | Optical fiber unit and optical fiber cable |
-
2014
- 2014-06-20 CN CN201420334002.XU patent/CN203982870U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485871A (en) * | 2019-09-11 | 2021-03-12 | 住友电气工业株式会社 | Optical fiber unit and optical fiber cable |
| CN110931153A (en) * | 2019-12-06 | 2020-03-27 | 绍兴电力设备有限公司 | Fire-resistant optical fiber composite bunched cable and preparation method thereof |
| CN110931153B (en) * | 2019-12-06 | 2021-05-18 | 绍兴电力设备有限公司 | Fire-resistant optical fiber composite bunched cable and preparation method thereof |
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