CN207867083U - Full-dry optical cable and its system - Google Patents
Full-dry optical cable and its system Download PDFInfo
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- CN207867083U CN207867083U CN201721123705.8U CN201721123705U CN207867083U CN 207867083 U CN207867083 U CN 207867083U CN 201721123705 U CN201721123705 U CN 201721123705U CN 207867083 U CN207867083 U CN 207867083U
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- full
- optical cable
- dry optical
- dry
- loose tube
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Abstract
The utility model provides a kind of Full-dry optical cable and its system, is related to fiber optic cable communications technical field.A kind of Full-dry optical cable, including cable core and the oversheath for being set to outer layer of cable core, cable core includes modified polybutylene terephthalate (PBT) Loose tube, reinforcer and waterstop, reinforcer is set to the center of cable core, modified polybutylene terephthalate (PBT) Loose tube is set to the periphery of reinforcer, waterstop coating modification polybutylene terephthalate (PBT) Loose tube.The optical cable is light-weight, easily constructs, is not damaged to human body and environment, has significant economy and practicability.A kind of Full-dry optical cable system, including above-mentioned Full-dry optical cable.The system weight is light, easily constructs, is not damaged to human body and environment, has significant economy and practicability.
Description
Technical field
The utility model is related to fiber optic cable communications technical fields, in particular to a kind of Full-dry optical cable and its system.
Background technology
In recent years, it is implemented along with the in-depth of " broadband China " strategy and informatization strategy is actively pushed forward, network has become
For the highly important information delivering path in China.Thereupon, the development of optical cable has also strided forward major step, and optical cable is towards special type
Type, light-type, large capacity version structural development.
With the high speed development of communications industry, demand of the people to optical cable increasingly focuses on the convenience and environmental-friendly of constructing
Property.Due to containing ointment in optical cable, needs to remove ointment before cable connection and clean optical cable so that it is cumbersome, and to human body
And environmental pollution.Traditional half dry type optical cable can only reduce environmental pollution to a certain extent, and Full-dry optical cable is using dry
Formula material is avoided damaging equipment, be polluted the environment instead of ointment.There are still many for current Full-dry optical cable
Problem is developed novel Full-dry optical cable and is played an important roll for the development of network.
Utility model content
The purpose of this utility model is to provide a kind of Full-dry optical cables, and the optical cable is light-weight, easily construct, to human body and ring
Border is not damaged, and has significant economy and practicability.
The another object of the utility model is to provide a kind of Full-dry optical cable system, and the system weight is light, easily constructs, right
Human body and environment do not damage, and have significant economy and practicability.
What the embodiments of the present invention were realized in：
A kind of Full-dry optical cable, including cable core and the oversheath for being set to outer layer of cable core, cable core include modified poly- to benzene two
Formic acid butanediol ester Loose tube, reinforcer and waterstop, reinforcer are set to the center of cable core, modified poly terephthalic acid fourth two
Alcohol ester Loose tube is set to the periphery of reinforcer, waterstop coating modification polybutylene terephthalate (PBT) Loose tube.
Further, in the utility model preferred embodiment, in modified polybutylene terephthalate (PBT) Loose tube
Equipped with the substance that blocks water, it is preferred that the substance that blocks water is water blocking yarn in casing.
Further, in the utility model preferred embodiment, cable core further includes and modified poly terephthalic acid fourth two
Alcohol ester Loose tube is set to the gasket for packing of reinforcer periphery jointly.
Further, in the utility model preferred embodiment, cable core further includes the aramid fiber for being set to waterstop outer layer
And tear rope.
Further, in the utility model preferred embodiment, cable core further includes the tear rope for being set to waterstop.
Further, in the utility model preferred embodiment, oversheath is internally provided with fibre reinforced materials.
Further, in the utility model preferred embodiment, fibre reinforced materials is symmetrically disposed on the interior of oversheath
Portion.
Further, in the utility model preferred embodiment, reinforcer and modified polybutylene terephthalate (PBT)
Water blocking yarn is equipped between Loose tube.
A kind of Full-dry optical cable system, including above-mentioned Full-dry optical cable.
Further, in the utility model preferred embodiment, Full-dry optical cable system further includes optical cross box and point fibre
Box, Full-dry optical cable are set in optical cross box and fiber distribution box.
The advantageous effect of the utility model embodiment：
It includes by the poly- terephthaldehyde of modification that the utility model, which provides a kind of Full-dry optical cable and its system, Full-dry optical cable,
Loose tube made of sour butanediol ester (PBT), modified PBT Loose tube obtained have preferable flexibility, can meet Loose tube
The requirement of bending radius≤30mm.In modified PBT Loose tube by cross addition dry type block water substance block water instead of tradition it is compound
Fiber paste has the advantages that environmental protection, mitigates cable weight.In order to enhance the load-bearing capacity of Full-dry optical cable, tension drags ability, reduces damage
Rate is symmetrical arranged PE fiber reinforced plastics poles (TFRP) on the outside of cable core.The optical cable is light-weight, easily constructs, to human body and environment
It does not damage, there is significant economy and practicability.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram for the Full-dry optical cable that the utility model embodiment 1 provides；
Fig. 2 is the structural schematic diagram for the Full-dry optical cable that the utility model embodiment 2 provides；
Fig. 3 is the structural schematic diagram for the Full-dry optical cable that the utility model embodiment 3 provides；
Fig. 4 is the structural schematic diagram for the Full-dry optical cable that the utility model embodiment 4 provides.
Icon：100- Full-dry optical cables；110- cable cores；111- modified PBT Loose tubes；112- reinforcers；113- waterstops；
115- optical fiber；116- blocks water substance；120- oversheaths；200- Full-dry optical cables；210- aramid fibers；220- tear ropes；300- is absolutely dry
Formula optical cable；310-TFRP；400- Full-dry optical cables；410- water blocking yarns.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "center", "inner", "outside" or
Position relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when the side usually put
Position or position relationship, are merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Indicate that fisrt feature level height is less than second feature.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the utility model.In the absence of conflict, under
Feature in the embodiment and embodiment stated can be combined with each other.
Embodiment 1
Fig. 1 is please referred to, the present embodiment provides a kind of Full-dry optical cable 100, including cable core 110 and is set to outside cable core 110
The oversheath 120 of layer, oversheath 120 protect cable core 110 not damaged by the external world.
Cable core 110 includes modified PBT Loose tube 111, reinforcer 112 and waterstop 113, and reinforcer 112 is set to cable core
Firm support is played the role of so that Full-dry optical cable 100 can bear certain external force, enhance its mechanicalness in 110 center
Energy.In the present embodiment, reinforcer 112 is fabricated to cylinder using fibre reinforced composites, in other of the utility model
In embodiment, the material and shape of reinforcer 112 can be other forms, and the utility model does not limit it.
Modified PBT Loose tube 111 is set to the periphery of reinforcer 112, axis and the modified PBT Loose tube of reinforcer 112
111 axis is mutually parallel.In the present embodiment, 111 spaced set of modified PBT Loose tube is in the periphery of reinforcer 112,
In the other embodiment of the utility model, modified PBT Loose tube 111 can be arranged otherwise, the utility model to it not
It limits.Preferably, the number of modified PBT Loose tube 111 is even number, can be symmetrical arranged, and ensures the steady of 110 structure of cable core
Gu.
In the other embodiment of the utility model, when the number of modified PBT Loose tube 111 is less, along reinforcer 112
Extending direction be provided with modified PBT Loose tube 111 and gasket for packing, the diameter of the diameter and modified PBT Loose tube 111 of gasket for packing
It is identical so that Full-dry optical cable 100 keeps shaped, stable structure, and auxiliary improves Full-dry optical cable 100 stretch-proof, anti-waves
Effect.Further, gasket for packing is made by fire proofing, improves the flame retardant property of Full-dry optical cable 100.
In the present embodiment, Loose tube is made by the polybutylene terephthalate (PBT) being modified.Change specifically, making
The raw material of property polybutylene terephthalate (PBT) Loose tube includes：75~85 parts of polybutylene terephthalate (PBT), thermoplastic elastomehc
Property 5~10 parts of body, 5~10 parts of makrolon, 5~10 parts of chain extender, 0.1~0.5 part of fluorescent whitening agent, it is preferable that poly- to benzene
80~85 parts of dioctyl phthalate butanediol ester, 5~7 parts of thermoplastic elastomer (TPE), 5~7 parts of makrolon, 5~10 parts of chain extender, fluorescence increase
White 0.2~0.4 part of agent, it is highly preferred that raw material includes 85 parts of polybutylene terephthalate (PBT), 6 parts of thermoplastic elastomer (TPE), poly- carbon
6 parts of acid esters, 8 parts of chain extender, 0.3 part of fluorescent whitening agent.
Polybutylene terephthalate (PBT) has good mechanical property, and impact strength is preferable, and heat resistance is good, nontoxic nothing
Taste has a safety feature.In the present invention, the viscosity of polybutylene terephthalate (PBT) is 1.0~1.2dl/g.
The preparation method of modified PBT Loose tube 111 includes：Raw material is dry under conditions of 80 DEG C~100 DEG C, mixing,
Drying is to prevent excess moisture from reducing the performance of modified PBT Loose tube 111 to reduce water content.It will be poly- to benzene two after drying
Formic acid butanediol ester, thermoplastic elastomer (TPE) and makrolon, which are added in high-speed mixer or sonic oscillation generator, mixes 18 points
Clock after being sufficiently mixed, adds chain extender, fluorescent whitening agent continues mixing 25 minutes.It feeds the mixture into extruder,
Plasticity is squeezed out under conditions of 225~275 DEG C.
Compared to PBT material, modified PBT material contains the block copolymer of polyester hard section and polyester soft segment, wherein polyethers
Soft segment and uncrystallized polyester, which are formed, unformed mutually makes modified PBT material have excellent elasticity and flexibility.Polyester hard section
Partially crystallizable forms crystalline domains, plays physical crosslinking point so that and modified PBT material has better processing performance,
Modified PBT Loose tube 111 obtained has preferable flexibility, can meet 111 bending radius of modified PBT Loose tube≤30mm's
It is required that.
It is equipped with optical fiber 115 and the substance 116 that blocks water in modified PBT Loose tube 111, is blocked water 116 generation of substance by adding dry type
It blocks water compound fiber paste for tradition, has the advantages that environmental protection, mitigates cable weight.In the present embodiment, the substance 116 that blocks water is in casing
Water blocking yarn, in the other embodiment of the utility model, the substance 116 that blocks water can be other dry type substances, the utility model pair
It is not limited.For plastic sleeve process by using suitable extruded mould, the extrusion molding amount of equal control Loose tube material will be in casing
Water blocking yarn and optical fiber 115 are sent into casing, while with 111 inner fiber 115 of compacting device control modified PBT Loose tube and casing
The remaining length of interior water blocking yarn.Preferably, non-oxidized gas is filled in modified PBT Loose tube 111, such as nitrogen changes instead of ointment guarantee
Property 111 outer diameter of PBT Loose tubes stablize, the load-bearing capacity of enhancing modified PBT Loose tube 111.
In the application, water, which enters, can resolve into hydrogen and hydroxide ion in Full-dry optical cable 100, optical fiber 115 is made to transmit
Loss increases, reduces by 115 performance of optical fiber, shortens cable lifetime.The general waterstop 113 that is added prevents water and moisture from longitudinally spreading,
Play the role of blocking water.Waterstop 113 is coated on the outer surface of modified PBT Loose tube 111, i.e. waterstop 113 is wrapped in modification
Side of the PBT Loose tubes 111 far from reinforcer 112, and tied up using yarn is pricked so that the stable structure of cable core 110.
Embodiment 2
Fig. 2 is please referred to, the present embodiment provides a kind of Full-dry optical cables 200.
Full-dry optical cable 200 and the difference of Full-dry optical cable 100 essentially consist in：
It is additionally provided with aramid fiber 210 and tear rope 220 between the cable core 110 and oversheath 120 of Full-dry optical cable 200.Specifically,
Aramid fiber 210 is set between waterstop 113 and oversheath 120.Aramid fiber 210 is a kind of novel synthetic fibers, have superhigh intensity,
High-modulus and the excellent performances such as high temperature resistant, acid-fast alkali-proof, light-weight, insulation, anti-aging, life cycle length, enhance dry type light
The performance of cable 200.The tension that tear rope 220 enhances Full-dry optical cable 200 drags ability, reduces spoilage, can also absorb absolutely dry
The heat that formula optical cable 200 distributes in use pushes oversheath 120 aside when mode is constructed.
It is indicated to simplify, non-mentioned position in the present embodiment please refers to corresponding contents in embodiment 1.
Embodiment 3
Fig. 3 is please referred to, the present embodiment provides a kind of Full-dry optical cables 300.
Full-dry optical cable 300 and the difference of Full-dry optical cable 200 essentially consist in：
Since 210 price of aramid fiber is slightly higher, for the optical cable of small span, can cancel using aramid fiber 210, tear rope 220 is set
It is placed in waterstop 113, in the symmetrically placed TFRP310 in 110 both sides of cable core.Specifically, inside 110 outside of cable core, oversheath 120
Symmetrically placed 2 TFRP310 can also calculate force value, the placement quantity of reselection TFRP310, in this reality according to optical cable span
With in novel other embodiment, the number of TFRP310 can be 4 or 6, and the utility model does not limit it.
TFRP310 is mainly supported by polyethylene fibre relative to conventional FRP ingredients, has intensity high, and modulus is high, and size is small to be equal to,
300 self load bearing demand of Full-dry optical cable can preferably be met.
It is indicated to simplify, non-mentioned position in the present embodiment please refers to corresponding contents in embodiment 2.
Embodiment 4
Fig. 4 is please referred to, the present embodiment provides a kind of Full-dry optical cables 400.
Full-dry optical cable 400 and the difference of Full-dry optical cable 300 essentially consist in：
In order to further enhance the water preventing ability of Full-dry optical cable 400, set between reinforcer 112 and modified PBT Loose tube 111
There is a water blocking yarn 410, at 410 blind of water blocking yarn, plays a supporting role simultaneously.In the present embodiment, Full-dry optical cable 400 is complete
Medium Non-metallic components ensure that it is introduced into indoor safety from outdoor, avoid the attack of thunder and lightning.
The present embodiment also provides a kind of Full-dry optical cable system (not shown) based on Full-dry optical cable 400, including absolutely dry
Formula optical cable 400, optical cross box (not shown) and fiber distribution box (not shown), Full-dry optical cable 400 are set in optical cross box and fiber distribution box.
It is light-weight, it easily constructs, human body and environment is not damaged, there is significant economy and practicability.
It is indicated to simplify, non-mentioned position in the present embodiment please refers to corresponding contents in embodiment 3.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of Full-dry optical cable, which is characterized in that including cable core and the oversheath for being set to the outer layer of cable core, the cable core
It is set to the cable core including modified polybutylene terephthalate (PBT) Loose tube, reinforcer and waterstop, the reinforcer
Center, the modified polybutylene terephthalate (PBT) Loose tube are set to the periphery of the reinforcer, the waterstop cladding
The modified polybutylene terephthalate (PBT) Loose tube；
The cable core further includes the tear rope for being set to the waterstop.
2. Full-dry optical cable according to claim 1, which is characterized in that the modified polybutylene terephthalate (PBT) pine
Water blocking yarn is equipped in casing.
3. Full-dry optical cable according to claim 2, which is characterized in that the cable core further includes poly- to benzene with the modification
Dioctyl phthalate butanediol ester Loose tube is set to the gasket for packing of the reinforcer periphery jointly.
4. Full-dry optical cable according to claim 1, which is characterized in that the cable core further includes being set to the waterstop
The aramid fiber and tear rope of outer layer.
5. Full-dry optical cable according to claim 1, which is characterized in that the oversheath is internally provided with fiber reinforcement material
Material.
6. Full-dry optical cable according to claim 5, which is characterized in that the fibre reinforced materials is symmetrically disposed on described
The inside of oversheath.
7. Full-dry optical cable according to claim 1, which is characterized in that the reinforcer and the poly- terephthaldehyde of the modification
Water blocking yarn is equipped between sour butanediol ester Loose tube.
8. a kind of Full-dry optical cable system, which is characterized in that including Full-dry optical cable as described in any one of claim 1 to 7.
9. Full-dry optical cable system according to claim 8, which is characterized in that the Full-dry optical cable system further includes light
Case and fiber distribution box, the Full-dry optical cable is handed over to be set in the optical cross box and the fiber distribution box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123705.8U CN207867083U (en) | 2017-09-04 | 2017-09-04 | Full-dry optical cable and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123705.8U CN207867083U (en) | 2017-09-04 | 2017-09-04 | Full-dry optical cable and its system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867083U true CN207867083U (en) | 2018-09-14 |
Family
ID=63474269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721123705.8U Active CN207867083U (en) | 2017-09-04 | 2017-09-04 | Full-dry optical cable and its system |
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| CN (1) | CN207867083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329223A (en) * | 2017-09-04 | 2017-11-07 | 江苏亨通光电股份有限公司 | Full-dry optical cable and its system |
| EP3705525A4 (en) * | 2018-10-22 | 2021-09-22 | Jiangsu Hengtong Optic-Electric Co. Ltd. | Micro-beam tube for cables and cable comprising micro-beam tube |
-
2017
- 2017-09-04 CN CN201721123705.8U patent/CN207867083U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329223A (en) * | 2017-09-04 | 2017-11-07 | 江苏亨通光电股份有限公司 | Full-dry optical cable and its system |
| CN107329223B (en) * | 2017-09-04 | 2020-04-24 | 江苏亨通光电股份有限公司 | Full-dry optical cable and system thereof |
| EP3705525A4 (en) * | 2018-10-22 | 2021-09-22 | Jiangsu Hengtong Optic-Electric Co. Ltd. | Micro-beam tube for cables and cable comprising micro-beam tube |
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