CN202563970U - Anti-deformation communication signal cable having double-steel-tape armoring layer - Google Patents
Anti-deformation communication signal cable having double-steel-tape armoring layer Download PDFInfo
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- CN202563970U CN202563970U CN 201220186649 CN201220186649U CN202563970U CN 202563970 U CN202563970 U CN 202563970U CN 201220186649 CN201220186649 CN 201220186649 CN 201220186649 U CN201220186649 U CN 201220186649U CN 202563970 U CN202563970 U CN 202563970U
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Abstract
Disclosed is an anti-deformation communication signal cable having a double-steel-tape armoring layer, comprising a cable core, wherein the outer surface of the cable core is coated with an inner-cushion layer; the outer surface of the inner-cushion layer is coated with a double-steel-tape armoring layer; the outer surface of the double-steel-tape armoring layer is coated with an outer sheath; a polypropylene layer formed by winding polypropylene tapes or a non-woven fabric layer formed by winding non-woven fabric tapes is arranged between the double-steel-tape armoring layer and the outer sheath, with the thickness of the polypropylene layer/non-woven fabric layer ranging from 0.04 to 0.50mm; and the winding direction of the double-steel-tape armoring layer is left while the winding direction of the polypropylene tapes is right. On the basis of keeping the electrical performance of the cable unchanged, the anti-deformation communication signal cable of the utility model effectively overcomes the local stress leading to the deformation of the outer sheath resulting from pulling, stretching, bending, twisting, fiction, bumping, dramatic temperature change in the cold region, and other factors, reduces or releases the external force, and decreases the impact or avoids deformation of the outer sheath resulting from an external force.
Description
Technical field
The utility model relates to telecommunication cable, relates in particular to a kind of anti-deformation communicaton and signal cable with double-tape armor layer.
Background technology
In the sheath structure of cable; Environment for use, operating characteristic and technical performance according to cable; Adopt the cable of the wrapped dress armour structure of clad steel band gap, its armouring part sheath structure is followed successively by from inside to outside: inner covering (or claiming inner cushion layer), double-tape armor layer, outer jacket.Because mass defects such as the burr that in the cutting process of steel band manufacturing, produces, overlap; In the steel band dress armour process of cables manufacturing, steel band is through wrapped fast mouthful of when cable, causing of each directive wheel, crimping; Steel band is when continuing after thickening, the hardening in the cable dress armour manufacture process, the wrapped dress armour mass defect such as wedge angle that when cable, forms after the steel band convexity.When the polyolefin oversheath of cable extrudes because the tear-resistant performance of polyolefine material is poor, in case above-mentioned dress armour mass defect exist, the oversheath thickness that causes extruding easily than normal value attenuation, stretch and tear or oversheath defective such as broken hole.The cable that has oversheath mass defect through the rapid factor such as variation of towing stretching, flexion torsion, frictional impact or cold district temperature, causes the protective coverings of cable tension-thining or breaks in engineering construction and use.Functions such as that the polyolefin oversheath of cable has is anticorrosion, moistureproof, anti-oxidation, antiultraviolet; In case oversheath is impaired break after; Its armour is directly exposed, thereby extraneous moisture and moisture content are understood the normal use that the electrical insulation properties that influence cable influences cable after getting into cable; Cause the corrosion oxidation of armouring tape, influence the shielding properties and the ability of bearing external force of cable; Influence the ground connection of system after the steel band corrosion fracture, cause the security reliability of system to descend, discharge sparking burn or blow cable and cause quality accident.Above-mentioned variation will significantly reduce the useful life of cable and the hidden danger that causes the accident.
Summary of the invention
The utility model provides a kind of anti-deformation communicaton and signal cable with double-tape armor layer; This anti-deformation communicaton and signal cable is keeping on the cable electrical performance basis of invariable; Effectively overcome the local stress that cable is out of shape because of the outer jacket that causes through factors such as towing stretching, flexion torsion, frictional impact or the rapid variations of cold district temperature; Reduce or discharge external force, reduce impact or the distortion of oversheath because of born by the external force effect.
For achieving the above object; The technical scheme that the utility model adopts is: a kind of anti-deformation communicaton and signal cable with double-tape armor layer; Comprise cable core, said cable core outer surface is coated with inner cushion layer, and this inner cushion layer outer surface is coated with the double-tape armor layer; This double-tape armor layer outer surface is coated with outer jacket, is provided with between said double-tape armor layer and the outer jacket by the wrapped polypropylene layer that forms of polypropylene tape.
It is following that technique scheme is further improved technical scheme:
1. in the such scheme, said polypropylene layer (5) or nonwoven layer (6) thickness are 0.04 mm～0.50mm.
2. in the such scheme, said double-tape armor layer lapping direction is left-hand, and said polypropylene tape or nonwoven fabric belts lapping direction are dextrad.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1, the utlity model has the anti-deformation telecommunication cable of double-tape armor layer, set up polypropylene tape or nonwoven fabric belts as buffer layer structure after, eliminate the mass defect of steel-tape armouring; The local stress that the outer jacket that cable is caused because of factors such as warp towing stretching, flexion torsion, frictional impact or the rapid variations of cold district temperature is out of shape; Behind resilient coating, bear main distortion and external force by resilient coating, thereby reduce or discharge external force; Reduce impact or the distortion of oversheath because of born by the external force effect; Improve the security reliability of cable, reduced the quality accident of cable, prolonged the useful life of cable.
2, the utlity model has the anti-deformation telecommunication cable of double-tape armor layer; Said double-tape armor layer lapping direction is left-hand, and said polypropylene tape or nonwoven fabric belts lapping direction are dextrad, and two kinds lapping direction is opposite; When effectively having eliminated double-deck steel band overlap joint; Increase the sudden change of the outside diameter of cable that is caused and reduce or cushion external force by steel band overlap joint overlapping external diameter, reduce impact or the distortion of oversheath, can eliminate the thickness difference of steel band lap-joint better because of born by the external force effect.Make cable core rounding more, oversheath is rounding more.
Description of drawings
Accompanying drawing 1 is the anti-deformation telecommunication cable of a utility model cross-sectional structure sketch map;
Accompanying drawing 2 is the anti-deformation telecommunication cable of a utility model vertical section structure sketch map one;
Accompanying drawing 3 is the anti-deformation telecommunication cable of a utility model vertical section structure sketch map two.
In the above accompanying drawing: 1, cable core; 2, inner cushion layer; 3, double-tape armor layer; 4, outer jacket; 5, polypropylene layer; 6, nonwoven layer.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of anti-deformation communicaton and signal cable with double-tape armor layer; Shown in accompanying drawing 1, comprise cable core 1, said cable core 1 outer surface is coated with inner cushion layer 2; These inner cushion layer 2 outer surfaces are coated with double-tape armor layer 3, and these double-tape armor layer 3 outer surfaces are coated with outer jacket 4;
Shown in accompanying drawing 2, be provided with between said double-tape armor layer 3 and the outer jacket 4 by the wrapped polypropylene layer that forms 5 of polypropylene tape; Perhaps, shown in accompanying drawing 3, be provided with between said double-tape armor layer 3 and the outer jacket 4 by the wrapped nonwoven layer that forms 6 of nonwoven fabric belts.
Above-mentioned polypropylene layer 5 or nonwoven layer 6 thickness are 0.04 mm～0.50mm.
Above-mentioned double-tape armor layer lapping direction is left-hand, and said polypropylene tape or nonwoven fabric belts lapping direction are dextrad.
When adopting above-mentioned anti-deformation communicaton and signal cable with double-tape armor layer, it is big and protective coverings of cable that cause is rough and uneven in surface and the phenomenon of rounding not to eliminate double tape armour conductor assembly outer diameter deviation; Steel band is wrapped when cable conductor after thickening, the hardening when continuing in the elimination dress armour manufacture process; The protective coverings of cable that forms dress armour mass defects such as wedge angle, outside diameter tolerance be big after the steel band convexity and cause earlier is in uneven thickness; Mass defects such as breakage; Make cable core rounding more, outer jacket thickness is even, and the cable outward appearance is rounding more.Thereby prevent effectively that cable jacket from tearing or defective such as broken hole.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.
Claims (3)
1. anti-deformation communicaton and signal cable with double-tape armor layer; Comprise cable core (1); It is characterized in that: said cable core (1) outer surface is coated with inner cushion layer (2); This inner cushion layer (2) outer surface is coated with double-tape armor layer (3); This double-tape armor layer (3) outer surface is coated with outer jacket (4), is provided with between said double-tape armor layer (3) and the outer jacket (4) by the wrapped polypropylene layer that forms of polypropylene tape (5) or by the wrapped nonwoven layer that forms of nonwoven fabric belts (6).
2. anti-deformation communicaton and signal cable according to claim 1 is characterized in that: said polypropylene layer (5) or nonwoven layer (6) thickness are 0.04 mm～0.50mm.
3. anti-deformation communicaton and signal cable according to claim 1 is characterized in that: said double-tape armor layer (3) lapping direction is a left-hand, and said polypropylene tape or nonwoven fabric belts lapping direction are dextrad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186649 CN202563970U (en) | 2012-04-27 | 2012-04-27 | Anti-deformation communication signal cable having double-steel-tape armoring layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186649 CN202563970U (en) | 2012-04-27 | 2012-04-27 | Anti-deformation communication signal cable having double-steel-tape armoring layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202563970U true CN202563970U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186649 Expired - Fee Related CN202563970U (en) | 2012-04-27 | 2012-04-27 | Anti-deformation communication signal cable having double-steel-tape armoring layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202563970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915148A (en) * | 2012-12-31 | 2014-07-09 | 深圳市联嘉祥科技股份有限公司 | Self-supporting-type control cable |
| CN107180676A (en) * | 2017-05-09 | 2017-09-19 | 四川新东方电缆集团有限公司 | A kind of anti-freeze cable and its production method |
-
2012
- 2012-04-27 CN CN 201220186649 patent/CN202563970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915148A (en) * | 2012-12-31 | 2014-07-09 | 深圳市联嘉祥科技股份有限公司 | Self-supporting-type control cable |
| CN107180676A (en) * | 2017-05-09 | 2017-09-19 | 四川新东方电缆集团有限公司 | A kind of anti-freeze cable and its production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |