CN202404966U - Novel tension-resistant cable - Google Patents
Novel tension-resistant cable Download PDFInfo
- Publication number
- CN202404966U CN202404966U CN2012200331602U CN201220033160U CN202404966U CN 202404966 U CN202404966 U CN 202404966U CN 2012200331602 U CN2012200331602 U CN 2012200331602U CN 201220033160 U CN201220033160 U CN 201220033160U CN 202404966 U CN202404966 U CN 202404966U
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- cable
- nylon
- steel
- inner core
- sectional area
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Abstract
The utility model discloses a novel tension-resistant cable, which is applied to the technical field of cables and comprises a cable inner core, an inner protection layer, a steel tape armoring, nylon and an outer sheath layer. The outside of the cable inner core is uniformly wrapped by the inner protection layer which is externally wrapped by the steel tape armoring, the steel tape armoring is made of a steel belt by means of spiral winding and externally wrapped by the outer sheath layer, the nylon wrapped by the outer sheath layer consist of a plurality of thin nylon strands, and the total cross sectional area of the nylon is equal to one fifth to one twentieth of the cross sectional area of the cable inner core, and the nylon has interior longitudinal shrinkage stress. Preferably, dead weight of the cable at a cable vertical suspension portion can be borne by the nylon due to the tension resistance of the nylon, damage of the cable by the cable dead weight along with time accumulation can be reduced, durability of the cable vertical suspension portion can be improved, and the novel tension-resistant cable can be reliably applied to high-level-difference natural vertical suspension on high-rise buildings and subways for a long time.
Description
Technical field
The utility model belongs to the cable technology field, refers in particular to a kind of novel tension cable.
Background technology
Cable is meant by the conductor outsourcing insulation and the protective layer of one or more mutually insulated and processes; With electric power from one be transferred to another place lead; Belong to contemporary life and produce indispensable high-risk product, as protect improper meeting and cause very big loss, so the protective layer of cable is of crucial importance.At present protect steel-tape armouring commonly used to adopt two-layer steel band, twine, make top one deck steel band cover the space of lower floor's steel band equably with the equidistance spiral form that opens wide with less pitch to cable.Generally speaking; The cable of steel-tape armouring is not owing to need make somebody a mere figurehead laying; But be tiled in underground or cable trough in, therefore less demanding, but along with increasing of city floor and popularizing of city underground to the tensile property of cable; The cable of these steel-tape armourings appears at the higher occasion of normal throw more and more; Because high building and subway inner space are narrow and small, often lack the segmentation load carrier during cable vertical hanging of steel-tape armouring, this cable long-term safety for steel-tape armouring is used and has been buried hidden danger.This is because of the position at the cable vertical hanging; Cable produces internal tension under the effect of self gravitation; This part pulling force is often concentrated and is put on cable inner conductive copper cash; Through long accumulation effect, the conduction copper cash may be broken, and the outer protective jacket layer also can executions such as cracking, be full of cracks occur under the tension for a long time simultaneously.At the vertical unsettled position of cable, because be the spiral parcel, self be difficult to realize the effect of tension between the armouring tape, and the weight of steel-tape armouring self can increase the weight of cable again, and then increase the destructiveness of cable internal tension.
In sum, be necessary the cable of this steel-tape armouring is improved.
Summary of the invention
To above-mentioned defective; The utility model provides a kind of novel tension cable, and its purpose is, at the vertical unsettled position of band-armored; Reduce of the destruction of cable self-weight tension, increase the reliability and the durability of cable the long time integration of cable own.
To achieve these goals; The structure of said novel tension cable is made up of cable inner core, sheath, steel-tape armouring and external sheath layer from inside to outside; Said cable inner core outside is the parcel sheath evenly, and sheath outerwrap steel-tape armouring, steel-tape armouring adopt that ribbon spiral is wrapped to form; Steel-tape armouring outerwrap external sheath layer, external sheath layer is enclosed with nylon.
Preferably, above-mentioned nylon is made up of the thin nylon of multiply.
Preferably, total cross-sectional area of above-mentioned nylon equal the cable inner core cross-sectional area 1/5th to 1/20th between.
The utility model adopts has the length direction of the nylon of certain cross-sectional area along cable; Because the inner stress that vertically shrinks that exists of nylon; Rather than from relaxed state, therefore, in the position of cable vertical hanging; Nylon will be shared the self-weight tension of cable, reduce the pulling force of cable deadweight to cable conduction line, steel-tape armouring and external sheath layer.
Description of drawings
Fig. 1 is the utility model cross-sectional structure sketch map.
Reference numeral: 1-cable inner core; The 2-sheath; The 3-steel-tape armouring; The 4-external sheath layer; 5-nylon.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.See also Fig. 1.
The structure of the utility model cable comprises cable inner core 1, sheath 2, steel-tape armouring 3, external sheath layer 4 and nylon 5.
Sheath 2 is evenly wrapped up in above-mentioned cable inner core 1 outside.
Above-mentioned sheath 2 outerwrap steel-tape armourings 3.
Above-mentioned steel-tape armouring 3 adopts that ribbon spiral is wrapped to form.
Above-mentioned steel-tape armouring 3 outerwrap external sheath layers 4.
Above-mentioned external sheath layer 4 is enclosed with nylon 5.
Above-mentioned nylon 5 is made up of the thin nylon of multiply.
Total cross-sectional area of above-mentioned nylon 5 equals the cross-sectional area summation of four nylon 5, equal cable inner core 1 cross-sectional area 1/5th to 1/20th between.
The above-mentioned nylon 5 inner stress that vertically shrink that exist.
Above-mentioned cable in process of production, the inner stress that vertically shrink that exist of nylon 5 prevent nylon 5 natural torsions, and then guarantee that nylon 5 can be shared the cable deadweight in cable vertical hanging position, reduce the internal tension of cable inner conductive line.The relation of the total cross-sectional area of nylon 5 and the cross-sectional area of cable inner core 1 meets the requirement of practical applications and Financial cost.
In sum; The utility model is through changing the structure of band-armored; Specifically be to have increased the nylon with vertical shrinkage stress, this nylon has corresponding cross-sectional area, like this in cable vertical hanging position; Nylon can be shared cable interior section pulling force, for the long-time safe handling of cable provides guarantee.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art are when change and the distortion that can make various equivalences according to the utility model, but these equivalent changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (3)
1. novel tension cable; It is characterized in that the said novel tension construction of cable is made up of cable inner core, sheath, steel-tape armouring and external sheath layer from inside to outside, said cable inner core outside is the parcel sheath evenly; Sheath outerwrap steel-tape armouring; Steel-tape armouring adopts that ribbon spiral is wrapped to form, steel-tape armouring outerwrap external sheath layer, and external sheath layer is enclosed with nylon.
2. novel tension cable according to claim 1 is characterized in that said nylon is made up of the thin nylon of multiply.
3. novel tension cable according to claim 1 is characterized in that, total cross-sectional area of said nylon equal the cable inner core cross-sectional area 1/5th to 1/20th between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200331602U CN202404966U (en) | 2012-02-02 | 2012-02-02 | Novel tension-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200331602U CN202404966U (en) | 2012-02-02 | 2012-02-02 | Novel tension-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404966U true CN202404966U (en) | 2012-08-29 |
Family
ID=46702598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200331602U Expired - Fee Related CN202404966U (en) | 2012-02-02 | 2012-02-02 | Novel tension-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404966U (en) |
-
2012
- 2012-02-02 CN CN2012200331602U patent/CN202404966U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20160202 |