Skeleton type cable

A skeleton and skeleton technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of large cable damage and difficult identification, and achieve the effect of simple production, effective protection, and easy mass production

Active Publication Date: 2012-07-18
JIANGSU NANFANG COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of skeleton cable in the prior art has significant disadvantages: it is difficult to identify without stripping the sheath of the optical cable, and it is often necessary to accurately know the position of the optical fiber or optical fiber ribbon or the slot where the electric wire is located during construction. In the prior art, it can only be judged accurately after cutting it, which will cause considerable damage to the cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] please see Figure 1 to Figure 2 , a skeleton type cable, which includes a skeleton 1, a reinforcing member 3 located in the center of the skeleton, a plurality of inner skeleton grooves 11 located on the outer circumference of the skeleton and separated from each other, a cable core 2 located in the inner skeleton groove, The protective layer 4 coated on the skeleton and the sheath 5 extruded on the protective layer; the inner skeleton grooves are distributed parallel to each other on the outer circumference of the skeleton and parallel to the reinforcement; it is characterized in that: the inner skeleton has adjacent and mutually The first groove 12 and the second groove 13 that are not connected; the first groove and the second groove are located between two adjacent inner skeleton grooves; An outer skeleton groove 51, the outer skeleton grooves are distributed parallel to each other and parallel to the reinforcing member, the position of the outer skeleton groove is...

Embodiment 2

[0030] please see Figure 3 to Figure 4, a skeleton type cable, which includes a skeleton 1, a reinforcing member 3 located in the center of the skeleton, a plurality of inner skeleton grooves 11 located on the outer circumference of the skeleton and spaced apart from each other, a cable core 2 located in the inner skeleton groove, The protective layer 4 coated on the skeleton and the sheath 5 extruded on the protective layer; the inner skeleton grooves are distributed parallel to each other on the outer circumference of the skeleton and parallel to the reinforcement; it is characterized in that: the inner skeleton has adjacent and mutually The first groove 12 and the second groove 13 that are not connected; the first groove and the second groove are located between two adjacent inner skeleton grooves; there is a protrusion protruding from the outer edge of the sheath on the outer edge of the sheath A plurality of outer skeleton strips 51, the outer skeleton strips are distrib...

Embodiment 3

[0033] please see Figure 5 to Figure 8 , a skeleton type cable, which includes a skeleton 1, a reinforcing member 3 located in the center of the skeleton, a plurality of inner skeleton grooves 11 located on the outer circumference of the skeleton and spaced apart from each other, a cable core 2 located in the inner skeleton groove, The protective layer 4 coated on the skeleton and the sheath 5 extruded on the protective layer; the inner skeleton groove is distributed in a unidirectional spiral on the outer circumference of the skeleton; A plurality of depressed outer skeleton grooves 51, the outer skeleton grooves are distributed in a unidirectional spiral on the outer circumference of the sheath, and the positions of the outer skeleton grooves correspond to the positions of the inner skeleton grooves; the bottom surface of the inner skeleton grooves is a helical surface , the bottom surface of the outer skeleton groove is a helical surface and the bottom surface of the inner...

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PUM

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Abstract

The invention relates to a skeleton type cable, belonging to the technical field of cables. The cable comprises a skeleton, a reinforcement, an internal skeleton slot, a cable core, a protective layer and a sheath, and is characterized in that a first groove and a second groove are formed on the internal skeleton; an external skeleton slot is arranged on the external edge of the sheath; the position of the internal skeleton slot corresponds to the position of the external skeleton slot; a third groove and a fourth groove are formed on the external edge of the sheath; and the positions of the first and third grooves correspond to the positions of the second and fourth grooves; the bottom surfaces of the internal and external skeleton slots are planes and the bottom surfaces at the corresponding positions are parallel; on the cross section of the cable, the area of the first groove is larger than the area of the second groove; the area of the third groove is larger than the area of the fourth groove; and on the projection of the bottom surface of any of the internal skeleton slot, the bottom of the external skeleton slot at the corresponding position is located in the bottom surface of the internal skeleton slot or has the size the same as that of the bottom surface of the internal skeleton slot. The cable provided by the invention mainly has the following beneficial effects that the manufacturing is simple, the mass production is easy, the construction is convenient, and the protection to cables is more effective.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a skeleton type cable with a skeleton groove or a skeleton strip on the sheath. Background technique [0002] Skeleton cables have been widely used, especially in terms of optical cables. The People's Republic of China Communication Industry Standard YD / T981.1-2009 Optical Fiber Ribbon Cables for Access Networks Part 1: Skeleton Type stipulates many kinds of optical cables with skeletons. , Skeleton optical cable is usually composed of a skeleton, a central strength member, a cable tie, a moisture barrier, a sheath, an optical fiber or an optical fiber ribbon, and there are multiple skeleton grooves on the skeleton, and the optical fiber or optical fiber ribbon is placed in the skeleton groove, and the skeleton groove is One-way helix or forward and reverse helix. For the skeleton cable, the structure is basically the same as the skeleton optical cable, except that communication ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 沈群华
Owner JIANGSU NANFANG COMM TECH
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