The application is that name is called: have the self-support cable of identification strip, the applying date is: on 01 26th, 2014, application number be: the divisional application of the patent of invention of 201410036276.5.
Summary of the invention
For solving the problems referred to above, the present invention discloses a kind of communications optical cable easy to identify, it can make, and optical cable appearance more rounding is smooth, the width of identification strip can be controlled more accurately with thickness, outside dimension less from the material consumption of load reinforcement messenger wire sheath, optical cable is less in optical cable, the speed of production of optical cable faster, identification strip more stable;It realizes by the following technical solutions.
A kind of communications optical cable easy to identify, it be by cable core, envelope the oversheath 6 of cable core, reinforcing element 8, the messenger wire sheath 9 enveloping reinforcing element, the muscle 7 that connects messenger wire sheath and oversheath are constituted;Cable core by centrally located center reinforcement 1, be centrally located the many Loose tube 2 outside reinforcement, the protective layer 5 that envelopes many Loose tube is constituted;Loose tube has at least one optical fibers 4;It is characterized in that: reinforcing element is individual wire or fiberglass reinforced plastics, messenger wire sheath is provided with two identification strips 10 symmetrically, that messenger wire sheath, oversheath, muscle are integrally formed and be identical material.
Communications optical cable a kind of easy to identify described above, it is characterised in that in described cable core, to be around center reinforcement stranded for many pine sets;Stranded mode is that spiral is stranded or forward and reverse stranded.
A kind of communications optical cable easy to identify, it be by cable core, envelope the oversheath 6 of cable core, reinforcing element 8, the messenger wire sheath 9 enveloping reinforcing element, the muscle 7 that connects messenger wire sheath and oversheath are constituted;Cable core by the center reinforcement 1 of central authorities, be centrally located at least one gasket for packing 3 outside reinforcement and many Loose tube 2, the protective layer 5 that envelopes gasket for packing and Loose tube is constituted;Loose tube has at least one optical fibers 4;It is characterized in that: reinforcing element is individual wire or fiberglass reinforced plastics, messenger wire sheath is provided with two identification strips 10 symmetrically, what messenger wire sheath, oversheath, muscle were integrally formed and be identical material.
Communications optical cable a kind of easy to identify described above, it is characterised in that in described cable core, it is stranded that gasket for packing and many pine sets are around center reinforcement;Stranded mode is that spiral is stranded or forward and reverse stranded.
Communications optical cable a kind of easy to identify described above, it is characterised in that the thickness of described identification strip is 0.2mm~1.0mm.
Communications optical cable a kind of easy to identify described above, it is characterised in that there is on described oversheath mark band 11.
Communications optical cable a kind of easy to identify described above, it is characterised in that the thickness of described mark band is 0.2mm~1.0mm.
Communications optical cable a kind of easy to identify described above, it is characterised in that described reinforcing element is phosphating steel wire or zinc-coated wire.
Communications optical cable a kind of easy to identify described above, it is characterised in that the material of described oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low-smoke non-halogen flame-retardant polyethylene.
Communications optical cable a kind of easy to identify described above, it is characterised in that the material of described center reinforcement is steel wire or fiberglass reinforced plastics.
Communications optical cable a kind of easy to identify described above, it is characterised in that the material of described gasket for packing is polypropylene or polyethylene.
Communications optical cable a kind of easy to identify described above, it is characterised in that the material of described Loose tube is polybutylene terephthalate (PBT) or modified polypropene.
Communications optical cable a kind of easy to identify described above, it is characterised in that described optical fibers is single-mode fiber or multimode fibre.
Communications optical cable a kind of easy to identify described above, it is characterised in that the material of described protective layer is waterstop or non-woven fabrics or fiberglass reinforced plastics band or aluminium-plastic tape or composite steel-plastic belt or stainless steel band.
Communications optical cable a kind of easy to identify described above, it is characterised in that along the direction that oversheath extends, described muscle is discontinuously distribution.
Communications optical cable a kind of easy to identify described above, it is characterised in that described identification strip is to be made up of the raw material of following weight portion: the material identical with oversheath 90~95 parts, commercial polyethylene color masterbatch 2~3 parts, titanium dioxide 6~8 parts, commercially available model are antioxidant 0.3~0.8 part, the natural paraffin wax 1.7~3 parts of 1010.
A kind of communications optical cable easy to identify, it is characterised in that: include cable core, envelope the oversheath of cable core, the reinforcing element being made up of individual wire or fiberglass reinforced plastics, envelope the messenger wire sheath of reinforcing element, connect the messenger wire sheath muscle with oversheath;Described cable core by centrally located center reinforcement, be centrally located many Loose tube outside reinforcement, the protective layer that envelopes many Loose tube is constituted;Loose tube has at least one optical fibers;Being provided with two identification strips on messenger wire sheath symmetrically, the messenger wire sheath of described identical material, oversheath, muscle are integrally formed;Described oversheath has mark band;The thickness of described identification strip is 0.2mm~1.0mm;Described identification strip is to be made up of the raw material of following weight portion: Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low-smoke non-halogen flame-retardant polyethylene 95 parts, polyethylene color masterbatch 3 parts, titanium dioxide 8 parts, antioxidant 0.8 part, natural paraffin wax 3 parts.
Communications optical cable a kind of easy to identify described above, it is characterised in that described mark band can be the raw material identical with identification strip.
In the present invention, owing to have employed non-stranded single reinforcing element, therefore, the messenger wire sheath of optical cable when do yesterday relatively thin, messenger wire sheath can also accomplish smooth rounding;THICKNESS CONTROL is more convenient, product qualified rate is high and speed of production is fast;Owing to the wall thickness of messenger wire sheath can be relatively thin, therefore, the material consumption of messenger wire sheath can efficiently reduce, therefore can be effectively reduced the deadweight of optical cable, can effectively increase the span of fiber cable laying.Owing to identification strip and/or mark band have employed special formula, therefore, the molding of identification strip is more convenient, and color stability is higher.
Therefore, the present invention has following main beneficial effect: messenger wire covering thickness control more convenient, the more smooth rounding of messenger wire sheath, production speed faster, qualification rate higher;Optical cable deadweight span lighter, that be suitable for is longer, and the color of identification strip is more stable.
Detailed description of the invention
In order to make place art be more fully understood by the present invention, being described in more detail in conjunction with being embodied as example, the name that each labelling in figure is corresponding is called: 1 center reinforcement; 2 Loose tube; 3 gasket for packings, 4 optical fiberss, 5 protective layers; 6 oversheaths; 7 muscle, 8 reinforcing elements, 9 messenger wire sheaths; 10 identification strips, 11 mark bands.
Embodiment 1
Ask for an interview Fig. 1 and Fig. 2, a kind of communications optical cable easy to identify, it be by cable core, envelope the oversheath 6 of cable core, reinforcing element 8, the messenger wire sheath 9 enveloping reinforcing element, the muscle 7 that connects messenger wire sheath and oversheath are constituted;Cable core by the center reinforcement 1 of central authorities, be centrally located the gasket for packing 3 outside reinforcement and two Loose tube 2, the protective layer 5 that envelopes gasket for packing and Loose tube is constituted;Every Loose tube has six roots of sensation optical fibers 4;It is characterized in that: reinforcing element is single phosphating steel wire, messenger wire sheath is provided with two identification strips 10 symmetrically, what messenger wire sheath, oversheath, muscle were integrally formed and be identical material;It is stranded that gasket for packing and many pine sets are around center reinforcement;The thickness of identification strip is 0.5mm;The material of oversheath is medium density polyethylene;The material of center reinforcement is steel wire;The material of gasket for packing is polypropylene;The material of Loose tube is polybutylene terephthalate (PBT);Optical fibers is single-mode fiber;The material of protective layer is waterstop;Identification strip is to be made up of the raw material of following weight portion: the material identical with oversheath 90 parts, commercial polyethylene color masterbatch 2 parts, titanium dioxide 6 parts, commercially available model are antioxidant 0.3 part, the natural paraffin wax 1.7 parts of 1010.
Embodiment 2
Ask for an interview Fig. 3 and Fig. 4, and with reference to Fig. 1 and Fig. 2, a kind of communications optical cable easy to identify, substantially with embodiment 1, be different in that: gasket for packing 3 has three, and Loose tube 2 has two;Identification strip is to be made up of the raw material of following weight portion: the material identical with oversheath 95 parts, commercial polyethylene color masterbatch 3 parts, titanium dioxide 8 parts, commercially available model are antioxidant 0.8 part, the natural paraffin wax 3 parts of 1010.
Embodiment 3
Ask for an interview Fig. 5, and with reference to Fig. 3 and Fig. 4, a kind of communications optical cable easy to identify, substantially with embodiment 2, be different in that: gasket for packing 3 has two, and Loose tube 2 has three;Identification strip is to be made up of the raw material of following weight portion: the material identical with oversheath 93 parts, commercial polyethylene color masterbatch 1.5 parts, titanium dioxide 7 parts, commercially available model are antioxidant 0.6 part, the natural paraffin wax 2 parts of 1010.
Embodiment 4
Ask for an interview Fig. 6, and with reference to Fig. 3 to Fig. 5, a kind of communications optical cable easy to identify, substantially with embodiment 2, be different in that: described oversheath has mark band 11, mark band is positioned at the underface of oversheath;Mark band and identification strip are identical materials.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it may also is that by cable core, envelope the oversheath 6 of cable core, reinforcing element 8, envelope the messenger wire sheath 9 of reinforcing element, connect what the muscle 7 of messenger wire sheath and oversheath was constituted;Cable core by centrally located center reinforcement 1, be centrally located the many Loose tube 2 outside reinforcement, the protective layer 5 that envelopes many Loose tube is constituted;Loose tube has at least one optical fibers 4;It is characterized in that: reinforcing element is individual wire or fiberglass reinforced plastics, messenger wire sheath is provided with two identification strips 10 symmetrically, that messenger wire sheath, oversheath, muscle are integrally formed and be identical material.
Certainly, further, communications optical cable a kind of easy to identify described above, it is characterised in that in described cable core, to be around center reinforcement stranded for many pine sets;Stranded mode is that spiral is stranded or forward and reverse stranded.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it be by cable core, envelope the oversheath 6 of cable core, reinforcing element 8, the messenger wire sheath 9 enveloping reinforcing element, the muscle 7 that connects messenger wire sheath and oversheath are constituted;Cable core by the center reinforcement 1 of central authorities, be centrally located at least one gasket for packing 3 outside reinforcement and many Loose tube 2, the protective layer 5 that envelopes gasket for packing and Loose tube is constituted;Loose tube has at least one optical fibers 4;It is characterized in that: reinforcing element is individual wire or fiberglass reinforced plastics, messenger wire sheath is provided with two identification strips 10 symmetrically, what messenger wire sheath, oversheath, muscle were integrally formed and be identical material.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that in described cable core, it is stranded that gasket for packing and many pine sets are around center reinforcement;Stranded mode is that spiral is stranded or forward and reverse stranded.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the thickness of described identification strip is 0.2mm~1.0mm.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that all can have mark band 11 on described oversheath, as long as and mark band position is on oversheath, the bar number of mark band is not limited to one.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the thickness of described mark band is 0.2mm~1.0mm.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that described reinforcing element is phosphating steel wire or zinc-coated wire.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the material of described oversheath is Low Density Polyethylene or medium density polyethylene or high density polyethylene (HDPE) or low-smoke non-halogen flame-retardant polyethylene.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the material of described center reinforcement is steel wire or fiberglass reinforced plastics.
Certainly, the communications optical cable a kind of easy to identify described in above-mentioned embodiment 2 embodiment 4, it is characterised in that the material of described gasket for packing is polypropylene or polyethylene.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the material of described Loose tube is polybutylene terephthalate (PBT) or modified polypropene.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that described optical fibers is single-mode fiber or multimode fibre.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that the material of described protective layer is waterstop or non-woven fabrics or fiberglass reinforced plastics band or aluminium-plastic tape or composite steel-plastic belt or stainless steel band.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that along the direction that oversheath extends, described muscle is discontinuously distribution;The consumption of material has been saved in the discontinuously distribution of muscle on the one hand, reduces the deadweight of optical cable on the other hand;Another further aspect makes optical cable when occurring bad, and messenger wire is more easily peeled, and makes oversheath and cable core and is recycled, and during muscle continuous distribution, optical cable is when there is bad order, and messenger wire is difficult to peel off, and oversheath and cable core are difficult to be recycled.
Certainly, communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that described identification strip is to be made up of the raw material of following weight portion: the material identical with oversheath 90~95 parts, commercial polyethylene color masterbatch 2~3 parts, titanium dioxide 6~8 parts, commercially available model are antioxidant 0.3~0.8 part, the natural paraffin wax 1.7~3 parts of 1010.
Applicant has carried out contrast test for embodiment 1 to embodiment 4 and the optical cable with identification strip of the prior art, and result of the test is as follows.
From upper table it is apparent that adopt the identification strip of inventive formulation and/or mark band to have excellent colour stability and salt fog resistance and heat aging property.
Certainly, the communications optical cable a kind of easy to identify described in any of the above-described embodiment, it is characterised in that described mark band can be the raw material identical with identification strip.
The invention process example 1 to embodiment 4, speed of production has all reached 80 ms/min, the phenomenon of bad order does not occur;And in prior art, produce the speed of this optical cable less than 25 ms/min and bad order rate more than 18%;Compared with prior art, owing to the core number of optical cable is different, therefore the external diameter of optical cable is also different, and with comparing of core number, the total height of optical cable reduces 15% 30%, the overall weight of optical cable alleviates 11% 18%.
In the present invention, owing to have employed non-stranded single reinforcing element, therefore, the messenger wire sheath of optical cable when do yesterday relatively thin, messenger wire sheath can also accomplish smooth rounding;THICKNESS CONTROL is more convenient, product qualified rate is high and speed of production is fast;Owing to the wall thickness of messenger wire sheath can be relatively thin, therefore, the material consumption of messenger wire sheath can efficiently reduce, therefore can be effectively reduced the deadweight of optical cable, can effectively increase the span of fiber cable laying.Owing to identification strip and/or mark band have employed special formula, therefore, the molding of identification strip is more convenient, and color stability is higher.
Therefore, the present invention has following main beneficial effect: messenger wire covering thickness control more convenient, the more smooth rounding of messenger wire sheath, production speed faster, qualification rate higher;Optical cable deadweight span lighter, that be suitable for is longer, and the color of identification strip is more stable.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be implemented to use by other various forms, and they also fall within protection scope of the present invention.