CN103646703A - Extrusion-resistance cable - Google Patents
Extrusion-resistance cable Download PDFInfo
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- CN103646703A CN103646703A CN201310662223.XA CN201310662223A CN103646703A CN 103646703 A CN103646703 A CN 103646703A CN 201310662223 A CN201310662223 A CN 201310662223A CN 103646703 A CN103646703 A CN 103646703A
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- cable
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- core winding
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Abstract
The invention provides an extrusion-resistance cable. The cable is characterized in that the cable comprises a cable core, a water-proof layer, a support structure, a fire protection layer and a corrosion-resistant layer; the cable core comprises a cable core wire and a cable core winding column; the cable core winding column is located at a center position of the cable; a side surface of the cable core winding column is provided with a plurality of spiral grooves; the cable core wire is wound on the cable core winding column through the grooves; the water-proof layer, the support structure, the fire protection layer and the corrosion-resistant layer are successively distributed from inside to outside, are fused and bonded into one body and are extruded on an external surface of the cable core so as to form a cable protection sleeve. By using the above technical scheme, when the cable bears a large extrusion force and the support structure in the cable protection sleeve is extruded and deformed, elastic deformation of the cable core winding column drives an overall shape of the cable core wire to be changed so that external extrusion can be adapted and the cable core is prevented from being fractured because of the extrusion.
Description
Technical field
The present invention relates to cables manufacturing technology, especially a kind of cable of resistance to extrusion pressing type.
Background technology
Cable always there will be various disturbing factors in the process of laying or coming into operation, and for fear of cable in the process coming into operation because external force is damaged, and then affect user's life and work, just need to when producing cable, increase its mechanical performance, the invention provides a kind of cable of resistance to extruding on fire prevention and corrosion resistant basis, effectively avoided the damage of cable cable core fracture when being squeezed.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of on fire prevention and corrosion resistant basis the cable of resistance to extruding also.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of cable of resistance to extrusion pressing type, comprises cable conductor, watertight composition, supporting construction, fireprotection layer and anti-corrosion layer;
Described cable conductor comprises core and cable core winding post, and described cable core winding post is positioned at the centre of cable, and this cable core winding post side surface is provided with multiple tracks helical groove, and described core is wrapped in described cable core winding post by this groove;
Described watertight composition, supporting construction, fireprotection layer and anti-corrosion layer distribute from inside to outside successively, and melt bonded being integrated, and are extruded in described cable conductor outer surface, form cable protective kit.
As preferably, described cable core winding post is made by elastomeric material.
As preferably, described core is wrapped in described cable core winding post by described groove, and the sidewall of described groove exceeds described core.
As preferably, described supporting construction is the netted protective layer consisting of steel wire winding.
Advantage and good effect that the present invention has are: adopt technique scheme, make cable bear larger extruding force, and when the supporting construction in cable protective kit is extruded distortion, elastic deformation by cable core winding post drives core to change on global shape, to adapt to external compression, prevent that cable conductor is squeezed fracture.
Accompanying drawing explanation
Fig. 1 is the construction of cable of resistance to extrusion pressing type schematic diagram.
In figure: 1, anti-corrosion layer 2, fireprotection layer 3, supporting construction 4, watertight composition 5, core 6, cable core winding post 61, groove 62, sidewall
Embodiment
Below with reference to the accompanying drawings and specific embodiment the present invention is made to detailed description.
As shown in Figure 1, the present invention includes cable conductor, watertight composition 4, supporting construction 3, fireprotection layer 2 and anti-corrosion layer 1.
Cable conductor comprises core 5 and cable core winding post 6; cable core winding post 6 is made by elastomeric material; be positioned at the centre of cable; these cable core winding post 6 side surfaces are provided with multiple tracks helical groove 61; core 5 is wrapped in cable core winding post 6 by this groove 61; and the sidewall 62 of groove 61 exceeds core 5, when being squeezed, cable can effectively protect core 5.
Watertight composition 4, supporting construction 3, fireprotection layer 2 and anti-corrosion layer 1 distribute from inside to outside successively, and melt bonded being integrated, and are extruded in cable conductor outer surface, form cable protective kit.
Supporting construction 3 is the netted protective layers that consist of steel wire winding.
The resistance to extrusion principle of the present invention is: when cable is subject to external compression; first the supporting construction 3 in cable cover(ing) is born; when extruding force is excessive; there is deformation in supporting construction 3; cause cable conductor generation deformation; cable core winding post 6 is made by elastomeric material; therefore first there is deformation in cable core winding post 6; drive core 5 to be wound around overall shape change; 6 of single cores are subjected to displacement and are not extruded; recess sidewall 62 has been avoided directly contact cable cover(ing) of core 5, has effectively protected core 5, the fracture of having avoided core 5 can produce because of extruding.
Above embodiments of the invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the scope of the invention and improvement etc., within all should still belonging to this patent covering scope.
Claims (4)
1. the cable of resistance to extrusion pressing type, is characterized in that: comprise cable conductor, watertight composition (4), supporting construction (3), fireprotection layer (2) and anti-corrosion layer (1);
Described cable conductor comprises core (5) and cable core winding post (6), described cable core winding post (6) is positioned at the centre of cable, this cable core winding post (6) side surface is provided with multiple tracks helical groove (61), and described core (5) is wrapped in described cable core winding post (6) by this groove (61);
Described watertight composition (4), supporting construction (3), fireprotection layer (2) and anti-corrosion layer (1) distribute from inside to outside successively, and melt bonded being integrated, and are extruded in described cable conductor outer surface, form cable protective kit.
2. the cable of resistance to extrusion pressing type according to claim 1, is characterized in that: described cable core winding post (6) is made by elastomeric material.
3. the cable of resistance to extrusion pressing type according to claim 1, is characterized in that: it is upper that described core (5) is wrapped in described cable core winding post (6) by described groove (61), and the sidewall (62) of described groove (61) exceeds described core (5).
4. the cable of resistance to extrusion pressing type according to claim 1, is characterized in that: described supporting construction (3) is the netted protective layer consisting of steel wire winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662223.XA CN103646703A (en) | 2013-12-06 | 2013-12-06 | Extrusion-resistance cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662223.XA CN103646703A (en) | 2013-12-06 | 2013-12-06 | Extrusion-resistance cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103646703A true CN103646703A (en) | 2014-03-19 |
Family
ID=50251904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310662223.XA Pending CN103646703A (en) | 2013-12-06 | 2013-12-06 | Extrusion-resistance cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103646703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956209A (en) * | 2014-04-02 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Extruding-resistant and stretch-proof power cable |
| CN104123985A (en) * | 2014-04-02 | 2014-10-29 | 安徽复兴电缆集团有限公司 | Extruding-resistant and bending-resistant complex cable |
-
2013
- 2013-12-06 CN CN201310662223.XA patent/CN103646703A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956209A (en) * | 2014-04-02 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Extruding-resistant and stretch-proof power cable |
| CN104123985A (en) * | 2014-04-02 | 2014-10-29 | 安徽复兴电缆集团有限公司 | Extruding-resistant and bending-resistant complex cable |
| CN103956209B (en) * | 2014-04-02 | 2017-01-11 | 安徽复兴电缆集团有限公司 | Extruding-resistant and stretch-proof power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140319 |