CN201569768U

CN201569768U - Optical cable easy to branch

Info

Publication number: CN201569768U
Application number: CN2009202665428U
Authority: CN
Inventors: 王春鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-09
Filing date: 2009-11-09
Publication date: 2010-09-01
Anticipated expiration: 2019-11-09

Abstract

The utility model relates to the technical field of optical cables, in particular to an optical cable easy to branch. The optical cable is characterized in that the optical cable at least comprises a loose sleeve (3), a central reinforcement piece (6) positioned in the center of the optical cable, an outer protecting layer (5) wholly covering the central reinforcement piece, suspension wires (1) covering the loose sleeve (3), and ribs (2) connecting the suspension wires (1) and the outer protecting layer (5), wherein the loose sleeve at least comprises an optical guide fiber (4); the suspension wires (1) and the ribs (2) are distributed around the outer protecting layer (5); clearances are reserved between the suspension wires and between the ribs; the suspension wires (1), the ribs (2) and the outer protecting layer (5) are integrally formed and made of the same material. The utility model has the advantages of easy branch, small volume of the optical cable, high capacity of the optical fiber, convenient manufacture, and stable performance of the optical cable.

Description

A kind of easily branched optical cable

Technical field

The utility model relates to the optical cable technology field, particularly a kind of easily branched optical cable.

Background technology

Along with the continuous development of the communications industry, optical cable is widely used in relating to all trades and professions of signal, as wired television network, GMS network, cdma network etc.; And along with the continuous growth and the people of wideband switch-in business are risen for the continuous of requirement of signal bandwidth, increasing occasion adopts optical fiber to insert, and is therefore, more and more higher for branch's requirement of optical cable.Branched cable commonly used at present has the Chinese invention patent application, and publication number is CN 1916680A, and name is called bundling type branched optical cable; This optical cable is by carrying out bonding the realization with adjacent optical cable subelement, but yield rate is not high in the production run, in addition, because bonding distance is shorter, therefore, through after the twisting repeatedly, each subelement is separated from each other in construction, and then influence identification.Another kind is Chinese utility model patent, its notification number is CN 2800301Y, name is called non-parallel shape branched cable, this optical cable is by being provided with two optical cable subelements of placing with non-stranded form in outer jacket and the outer jacket at least, outer jacket is vertically cut and is convenient to the intermittence otch that separates at least together, realize the separation of optical cable subelement by tearing otch in the construction, this mode really can be separated the optical cable subelement easily, but extremely difficult realization the in producing, and, this optical cable exists above-mentioned defective equally, promptly rotates in work progress, the optical cable outer jacket very easily ftractures during twisting; In addition, under the situation of tearing the shape otch, this cable configuration suffers very big destruction, has influenced the performance of other subelements.Another is Chinese utility model patent, its notification number is CN 2800302Y, name is called parallel units of branched optical fiber cable, many optical cable subelements are realized the function of branch by the connection of connecting band between adjacent, place usually on the connecting band and tear mouth, because the existence of connecting band, its area that takies is relatively large, therefore, the non-common limit of appearance fibre core number of whole optical cable, and also the manufacturing of whole optical cable is complicated.

The utility model content

The purpose of this utility model is to address the above problem, and a kind of easily branched optical cable is provided, and it is realized by the following technical solutions:

A kind of easily branched optical cable is characterized in that: it comprise at least central reinforce member 6 that a loose sleeve pipe 3, one be positioned at the optical cable center, integral coating central reinforce member outer jacket 5, be coated on the outer messenger wire 1 of loose sleeve pipe 3 and connect the muscle 2 of messenger wire 1 and outer jacket 5; At least comprise a light transmitting fiber 4 in the described loose sleeve pipe; Described messenger wire 1 and muscle 2 around outer jacket 5 distribute and adjacent messenger wire between, gapped between the muscle; Described messenger wire 1, muscle 2, outer jacket 5 are that be formed as one and be commaterial.

Above-mentioned described easily branched optical cable, its feature also is: when described light transmitting fiber 4 has many, be placed in the loose sleeve pipe with the form of fibre ribbon.

Above-mentioned described easily branched optical cable is characterized in that: also be filled with water-proofing powder or greasy for preventing water in the gap of described loose sleeve pipe.

Above-mentioned described easily branched optical cable, its feature also is: when many loose sleeve pipes 3 are arranged in the described optical cable, have at least a loose sleeve pipe 3 to be replaced by single signal wire or single power transmission line or many signal wires or many power transmission lines.

Further, above-mentioned described easily branched optical cable, its feature also is: described signal wire or power transmission line are made of conductor 9 sheath 8 outer with being coated on this conductor; To be that one metal wires single piece of metal or many are stranded form described conductor.

Above-mentioned described easily branched optical cable, its feature also is: described central reinforce member is metal or nonmetallic; The preferred steel wire or the steel strand wires of metal; Nonmetallic preferred glass fibers reinforced plastic.

Above-mentioned described easily branched optical cable, its feature also is: the material of described loose sleeve pipe 3 is polybutylene terephthalate or modified polypropene.

Above-mentioned described easily branched optical cable, its feature also is: the material of described messenger wire 1 or muscle 2 or outer jacket 5 is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.

Above-mentioned described easily branched optical cable, its feature also is: described muscle 2 is provided with for the tearing port that separates.

Above-mentioned described easily branched optical cable, its feature also is: described light transmitting fiber 4 is single-mode fiber or multimode optical fiber.

In the utility model, when needing to separate optical cable, only need breach is severed or torn to corresponding muscle, can finish the separation of optical cable subelement; And owing to can place multifiber in the loose sleeve pipe, so message capacity is quite big; In addition, distribute because the messenger wire 1 of this optical cable and muscle 2 center on outer jacket, so the volume of optical cable is less relatively, processing is relatively easy, does not need special-purpose process equipment; In addition, the separation of single subelement can not influence other unit of optical cable, therefore, makes the performance of optical cable more reliable.

The utlity model has easily branched, the optical cable volume is little, fiber capacity is big, easy to process, advantage that properties of optical fiber cable is stable.

Description of drawings

Fig. 1 for the part of the utility model embodiment one open after the stripping schematic perspective view;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the cross-sectional structure synoptic diagram of the another embodiment of the utility model;

Fig. 4 is the utility model cross-sectional structure synoptic diagram of an embodiment again.

Embodiment

Embodiment one

See also Fig. 1, Fig. 2, a kind of easily branched optical cable is characterized in that: it comprise central reinforce member 6 that six roots of sensation pine sleeve pipe 3, one be positioned at the optical cable center, integral coating central reinforce member outer jacket 5, be coated on the outer messenger wire 1 of loose sleeve pipe 3 and connect the muscle 2 of messenger wire 1 and outer jacket 5; Comprise four light transmitting fibers 4 in the described every loose sleeve pipe; Described messenger wire 1 and muscle 2 around outer jacket 5 distribute and adjacent messenger wire between, gapped between the muscle; Described messenger wire 1, muscle 2, outer jacket 5 are that be formed as one and be commaterial; Described central reinforce member is the metal steel wire; The material of described loose sleeve pipe 3 is a polybutylene terephthalate; The material of described messenger wire 1 or muscle 2 or outer jacket 5 is a medium density polyethylene; Described light transmitting fiber 4 is a single-mode fiber.

Embodiment two

See also Fig. 3, a kind of easily branched optical cable, substantially with embodiment one, its difference is: have a loose sleeve pipe 3 to be coated with protective seam 7; Protective seam 7 is positioned within the messenger wire 1; Described protective seam is waterstop or water blocking yarn or glass fiber tape or steel band or aluminium strip or polyester belt.

Embodiment three

See also Fig. 4, a kind of easily branched optical cable, with embodiment one, difference is substantially: messenger wire and muscle respectively have four, have a loose sleeve pipe 3 is respectively arranged in two messenger wires, in the every loose sleeve pipe 3 two light transmitting fibers 4 are arranged; One loose sleeve pipe is also arranged in another messenger wire, and four light transmitting fibers wherein are positioned at fibre ribbon 10; Also have the loose sleeve pipe in the messenger wire to be replaced by single signal wire, this signal wire is made of conductor 9 sheath 8 outer with being coated on this conductor; Described conductor is a single piece of metal.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: when described light transmitting fiber 4 has many, can be placed on the form of fibre ribbon in the loose sleeve pipe.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment is characterized in that: also can be filled with water-proofing powder or greasy for preventing water in the gap of described loose sleeve pipe.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: when many loose sleeve pipes 3 are arranged in the described optical cable, have at least a loose sleeve pipe 3 to be replaced by single signal wire or single power transmission line or many signal wires or many power transmission lines.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: described signal wire or power transmission line are made of conductor 9 sheath 8 outer with being coated on this conductor; To be that one metal wires single piece of metal or many are stranded form described conductor.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: described central reinforce member can be metal or nonmetallic; The preferred steel wire or the steel strand wires of metal; Nonmetallic preferred glass fibers reinforced plastic.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: the material of described loose sleeve pipe 3 can be polybutylene terephthalate or modified polypropene.

Certainly, easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: the material of described messenger wire 1 or muscle 2 or outer jacket 5 is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: also can be provided with on the described muscle 2 for the tearing port that separates.

Certainly, the easily branched optical cable described in above-mentioned arbitrary embodiment, its feature also is: described light transmitting fiber 4 can be single-mode fiber or multimode optical fiber.

In the utility model, when needing to separate optical cable, only need breach is severed or torn to corresponding muscle, can finish the separation of optical cable subelement; And owing to can place multifiber in the loose sleeve pipe, so message capacity is quite big; In addition, distribute because the messenger wire 1 of this optical cable and muscle 2 center on outer jacket, so the volume of optical cable is less relatively, processing is relatively easy, does not need specialized apparatus; In addition, the separation of single subelement can not influence other unit of optical cable, therefore, makes the performance of optical cable more reliable.

This paper understands exemplary embodiment of the utility model and present preferred implementation specifically, should be appreciated that the utility model design can be by other various forms enforcement utilizations, and they drop in the protection domain of the present utility model equally.

Claims

1. easily branched optical cable is characterized in that: it comprise at least central reinforce member (6) that a loose sleeve pipe (3), one be positioned at the optical cable center, integral coating central reinforce member outer jacket (5), be coated on the outer messenger wire (1) of loose sleeve pipe (3) and connect the muscle (2) of messenger wire (1) and outer jacket (5); At least comprise a light transmitting fiber (4) in the described loose sleeve pipe; Described messenger wire (1) and muscle (2) around outer jacket (5) distribute and adjacent messenger wire between, all gapped between the muscle; That described messenger wire (1), muscle (2), outer jacket (5) are formed as one and for commaterial.

2. easily branched optical cable according to claim 1 is characterized in that: described light transmitting fiber (4) is when having many, is placed in the loose sleeve pipe with the form of fibre ribbon.

3. easily branched optical cable according to claim 1 is characterized in that: be filled with water-proofing powder or greasy for preventing water in the gap of described loose sleeve pipe.

4. easily branched optical cable according to claim 1 is characterized in that: when many loose sleeve pipes (3) are arranged in the described optical cable, have at least a loose sleeve pipe (3) to be replaced by single signal wire or single power transmission line or many signal wires or many power transmission lines.

5. easily branched optical cable according to claim 4 is characterized in that: described signal wire or power transmission line are by conductor (9) and are coated on the outer sheath (8) of this conductor and are constituted; To be that one metal wires single piece of metal or many are stranded form described conductor.

6. easily branched optical cable according to claim 1 is characterized in that: described central reinforce member is metal or nonmetallic.

7. easily branched optical cable according to claim 1 is characterized in that: the material of described loose sleeve pipe (3) is polybutylene terephthalate or modified polypropene.

8. easily branched optical cable according to claim 1, it is characterized in that: the material of described messenger wire (1) or muscle (2) or outer jacket (5) is plastics, preferred low density polyethylene or medium density polyethylene or high density polyethylene or low smoke and zero halogen tygon or low-smoke low-halogen tygon or or smokeless halogen-free polyvinyl.

9. easily branched optical cable according to claim 1 is characterized in that: described muscle (2) is provided with for the tearing port that separates.

10. easily branched optical cable according to claim 1 is characterized in that: described light transmitting fiber (4) is single-mode fiber or multimode optical fiber.