CN207488562U - Loose tube, low temperature resistant air-blowing minisize optical cable and its system - Google Patents
Loose tube, low temperature resistant air-blowing minisize optical cable and its system Download PDFInfo
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- CN207488562U CN207488562U CN201721126137.7U CN201721126137U CN207488562U CN 207488562 U CN207488562 U CN 207488562U CN 201721126137 U CN201721126137 U CN 201721126137U CN 207488562 U CN207488562 U CN 207488562U
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- low temperature
- temperature resistant
- optical cable
- loose tube
- resistant air
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Abstract
The utility model provides a kind of Loose tube, low temperature resistant air-blowing minisize optical cable and its system, is related to fiber optic cable communications technical field.A kind of Loose tube, including tube body, the optical fiber for the inside for being set to tube body and low temperature resistant fiber paste, low temperature resistant fiber paste is filled in the inside of tube body, and optical fiber accounts for the 40~60% of the inner space of tube body.Resistance to low temperature is good, can be in the application in 65~50 DEG C of environment.A kind of low temperature resistant air-blowing minisize optical cable including cable core structure, is set to the sheath of cable core structure outer layer, and cable core structure is made of reinforcer and above-mentioned Loose tube, and Loose tube is set to the periphery of reinforcer.It is easy to install, it is light-weight, it is low temperature resistant, it can be applied in 65~50 DEG C of environment.A kind of low temperature resistant air-blowing minisize optical cable system, which is produced using low dose of pump, cost-effective, improves production efficiency.
Description
Technical field
The utility model is related to fiber optic cable communications technical fields, miniature in particular to a kind of Loose tube, low temperature resistant air-blowing
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.Access net in, have many connectors and disagreement between exchange and user, in order to
The route opened is not interfered when connecting new user, air-blowing micro-cable systems technology is born therewith.The technology is an optical cable air-blowing
New technology is laid, which first blows into micro-pipe in the main pipe laid, and then respectively will according to the demand of client's different times
Different types of micro- cable is blown into these micro-pipes.
Air-blowing minisize optical cable is quickly grown, and is widely used, and copes with resource tense situation both domestic and external now.Traditional air-blowing
Micro optical cable core number is up to 288 cores, has been widely used for each department, by application practice for many years, has now found that presence
The problem of very big.For example, Northern European countries, Northeast Area of China entered after severe winter, regional minimum temperature up to subzero tens degree,
Traditional air-blowing micro-cable cannot be used under this environment.A kind of super low-temperature resistant air-blowing minisize optical cable is developed to have above-mentioned area
It plays an important role.
Utility model content
The purpose of this utility model is to provide a kind of Loose tubes, and resistance to low temperature is good, can be in -65~-50 DEG C of environment
Using.
The another object of the utility model is to provide a kind of low temperature resistant air-blowing minisize optical cable, easy to install, light-weight, resistance to low
Temperature can be applied in -65~-50 DEG C of environment.
The further object of the utility model is to provide a kind of low temperature resistant air-blowing minisize optical cable system, which uses small dose
Amount pump is produced, cost-effective, improves production efficiency.
What the embodiment of the utility model was realized in：
A kind of Loose tube, including tube body, the optical fiber for the inside for being set to tube body and low temperature resistant fiber paste, low temperature resistant fiber paste filling
In the inside of tube body, optical fiber accounts for the 40~60% of the inner space of tube body.
Further, in the utility model preferred embodiment, a diameter of 180~220 μm of optical fiber.
Further, in the utility model preferred embodiment, the core number of optical fiber is 2~24 cores.
Further, in the utility model preferred embodiment, Loose tube is made by polybutylene terephthalate (PBT)
It forms.
A kind of low temperature resistant air-blowing minisize optical cable including cable core structure, is set to the sheath of cable core structure outer layer, cable core structure
It is made of reinforcer and above-mentioned Loose tube, Loose tube is set to the periphery of reinforcer.
Further, in the utility model preferred embodiment, the outer surface of reinforcer is equipped with reinforcer bed course.
Further, in the utility model preferred embodiment, low temperature resistant air-blowing minisize optical cable further includes waterproofing type virtue
Synthetic fibre, waterproofing type aramid fiber are set to the outer surface of cable core structure in the form of winding.
Further, in the utility model preferred embodiment, the number of waterproofing type aramid fiber is even number.
Further, in the utility model preferred embodiment, low temperature resistant air-blowing minisize optical cable further includes tear rope, tears
Rope is split to be set between Loose tube and sheath.
A kind of low temperature resistant air-blowing minisize optical cable system, including above-mentioned low temperature resistant air-blowing minisize optical cable.
The advantageous effect of the utility model embodiment：
The utility model provides a kind of Loose tube, low temperature resistant air-blowing minisize optical cable and its system, is filled in Loose tube
Low temperature resistant fiber paste so that Loose tube can be applied to -65~-50 DEG C of environment.A diameter of 180~220 μm are equipped in Loose tube
Optical fiber, minor diameter can effectively improve the free space in tube body, at low ambient temperatures, when tube body is shunk, ensure light
Fibre has enough removable spaces, ensures the normal work of optical fiber.
A kind of low temperature resistant air-blowing minisize optical cable, it is easy to install including above-mentioned Loose tube, it is light-weight, it is low temperature resistant, can -65~-
It is applied in 50 DEG C of environment.Reinforcer and reinforcer bed course are further included, ensures stretch-proof, the bending resistance of optical cable；Tear rope increases
The tension of strong optical cable drags ability, and sheath is pushed aside when reducing spoilage, while facilitating construction.
A kind of low temperature resistant air-blowing minisize optical cable system, since the viscosity of low temperature resistant fiber paste is told somebody what one's real intentions are, using low dose of pump
It is produced, accurately controls the fiber paste flow in tube body, enhance product performance, it is cost-effective, improve production efficiency.
Description of the drawings
It, below will be to use required 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 structure diagram of Loose tube that the utility model embodiment 1 provides；
Fig. 2 is the structure diagram of low temperature resistant air-blowing minisize optical cable that the utility model embodiment 2 provides；
Fig. 3 is the structure diagram of low temperature resistant air-blowing minisize optical cable that the utility model embodiment 3 provides；
Fig. 4 is the structure diagram of low temperature resistant air-blowing minisize optical cable that the utility model embodiment 4 provides.
Icon：100- Loose tubes；110- tube bodies；120- optical fiber；The low temperature resistant fiber pastes of 130-；The miniature light of the low temperature resistant air-blowings of 200-
Cable；210- cable core structures；211- reinforcers；213- reinforcer bed courses；220- sheaths；The low temperature resistant air-blowing minisize optical cables of 300-；
310- waterproofing type aramid fibers；The low temperature resistant air-blowing minisize optical cables of 400-；410- tear ropes.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
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 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 configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings 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, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " orientation of instructions such as " center ", " interior ", " outer " or
Position relationship be based on orientation shown in the drawings or position relationship or the utility model product using when the side usually put
Position or position relationship are for only for ease of description the utility model and simplify description rather than instruction or imply signified device
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that 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
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
Concrete meaning of the term in the utility model.
In the utility model unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it
" under " can be in direct contact including the first and second features, it is not to be in direct contact but lead to that can also include the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " including
One feature is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward or only
Represent 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 Loose tube 100, including tube body 110, optical fiber 120 and low temperature resistant fiber paste
130.Optical fiber 120 is set to the inside of tube body 110, the low temperature resistant filling of fiber paste 130 and the inside of tube body 110.
It is 60~80% that optical fiber 120 in traditional 120 casing of optical fiber, which takes up space, and when the environment temperature decreases, casing is received
Contracting, 120 mobile space of optical fiber become smaller, and be easy to cause quality accident.In order to ensure that optical fiber 120 can be in casing in low temperature environment
It inside moves freely, in the present embodiment, optical fiber 120 accounts for the 40~60% of the inner space of tube body 110, increases light in tube body 110
The removable space of fibre 120 so that optical fiber 120 can still work normally in low temperature environment.
As a kind of realization method, the optical fiber 120 that selects diameter small, not only can effectively improve in tube body 110 from
By space, and the performance of optical fiber 120 is influenced little.In the present embodiment, a diameter of 180~220 μm of optical fiber 120.
In the other embodiment of the utility model, the diameter of optical fiber 120 can be other values, and the utility model does not limit it.
As another realization method, reduce the caliber wall thickness of Loose tube 100 to increase the free space in tube body 110.
Preferably, caliber wall thickness can be reduced by increasing fiber paste flow and reducing extrusion molding amount, while reduce Loose tube 100 unwrapping wire
Power, laying tension can be 0.8~1.0N, and yarn-binding tension is controlled in 2~4N.
120 filling paste of optical fiber on the market can only meet subzero 40 degree of temperature at present, when temperature reduces or again in pole
It can not be met the requirements when under the conditions of cold.The low temperature resistant fiber paste 130 that the present embodiment uses lotion under conditions of -65~-50 DEG C is soft
It is soft.Specifically, the raw material for making low temperature resistant fiber paste 130 includes：Natural silicone oil or synthetic oil, lubricant and deicer.Natural silicon
Oil based on oil or synthetic oil, wherein, natural silicone molecule amount is larger, and performance is good；Synthetic oil is by increasing in strand
Ehter bond quantity reaches the performance of low-temperature low-viscosity.Base oil molecules amount is big, and intrinsic viscosity is higher, with the reduction of temperature, viscosity
It can increase, flexibility reduces.And the phase same sex of above-mentioned base oil and casing is poor, therefore, adds in lubricant and keeps macromolecular
The flexibility of the end of the chain, the viscosity of lotion when improving low temperature.Small molecule silicone oil may be used in lubricant, the compatibility with base oil
It is good.When further, in order to avoid low temperature environment, water condensation causes to damage optical fiber 120, and a certain amount of water removal is added in lotion
Agent keeps the water content of lotion.In the present embodiment, the water content of low temperature resistant fiber paste 130 is less than 2%.
In the present embodiment, by mass percentage, raw material includes natural silicone oil or synthetic oil 70~85%, lubricant 10
~15%, deicer 5~15%.The resistance to low temperature of low temperature resistant fiber paste 130 is preferable as made from the proportioning, at -65~-50 DEG C
Under conditions of lotion keep soft.
In the present embodiment, optical fiber 120 is dispersive optical fiber, and the core number of optical fiber 120 is 2~24 cores.By above-mentioned optical fiber 120
The transmission performance of the Loose tube 100 of formation is stablized, and meets actual demand.The tube body 110 of Loose tube 100 is by poly terephthalic acid fourth
Diol ester (PET) is made, and PET light weights are nontoxic, and heat-resisting ageing-resisting performance is good, and electrical insulation capability is good, is affected by temperature
It is small.PET allows Loose tube 100 to be applied in temperature is compared with low environment, expands the use scope of Loose tube 100.
Embodiment 2
Fig. 2 is please referred to, the present embodiment provides a kind of low temperature resistant air-blowing minisize optical cable 200, including cable core structure 210, setting
In the sheath 220 of 210 outer layer of cable core structure.
Cable core structure 210 is made of reinforcer 211 and Loose tube 100.In the present embodiment, reinforcer 211 is set to cable
The center of cored structure 210, plays the role of load-bearing.Reinforcer 211 can be metal reinforcement or non-metal reinforcement member, this practicality
It is novel that it is not limited.
Loose tube 100 is set to the periphery of reinforcer 211, and the axis of reinforcer 211 is mutually flat with the axis of Loose tube 100
Row, i.e., around 211 spaced set of reinforcer.The stable structure ensures the normal work of optical fiber 120.In the present embodiment, it is loose
The number of casing 100 is 8, can be according to low temperature resistant air-blowing minisize optical cable 200 in the other embodiment of the utility model
Size adjusts the number and arrangement mode of Loose tube 100, and the utility model does not limit it.
Sheath 220 as protective layer protect cable core structure 210, in the present embodiment, sheath 220 by polyethylene, nylon and
Individual layer or double-layer coextrusion material is made in the materials such as light processing agent, has light-weight, anti-aging, the performances such as uvioresistant.
It is represented 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 low temperature resistant air-blowing minisize optical cables 300.
The difference of low temperature resistant air-blowing minisize optical cable 300 and low temperature resistant air-blowing minisize optical cable 200 essentially consists in：
The outer surface of reinforcer 211 is equipped with reinforcer bed course 213, further increases the intensity of reinforcer 211, plays simultaneously
Cushioning effect protects Loose tube 100.
Low temperature resistant air-blowing minisize optical cable 300 further includes waterproofing type aramid fiber 310, enhances block-water performance.Specifically, waterproofing type is fragrant
Synthetic fibre 310 is set to the outer surface of cable core structure 210 in the form of winding, can adjust winding density and changes block-water performance.Preferably,
The number of waterproofing type aramid fiber 310 is even number, and when winding symmetrically winds, and ensures block-water performance.
It is represented 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 low temperature resistant air-blowing minisize optical cables 400.
The difference of low temperature resistant air-blowing minisize optical cable 400 and low temperature resistant air-blowing minisize optical cable 300 essentially consists in：
Low temperature resistant air-blowing minisize optical cable 400 further includes tear rope 410, and tear rope 410 is set to Loose tube 100 and sheath
Between 220.The tension that tear rope 410 enhances low temperature resistant air-blowing minisize optical cable 400 drags ability, reduces spoilage；It can also absorb
The heat that low temperature resistant air-blowing minisize optical cable 400 distributes in use, pushes sheath 220 aside when facilitating construction.
The present embodiment also provides a kind of low temperature resistant air-blowing minisize optical cable system based on low temperature resistant air-blowing minisize optical cable 400
(not shown), including low temperature resistant air-blowing minisize optical cable 400 and fiber paste pump (not shown).Due to low temperature resistant fiber paste 130 viscosity compared with
It is low, therefore only need to prepare low dose of pump, low dose pump can accurately control the fiber paste flow in tube body 110, improve
Properties of product, it is cost-effective, improve production efficiency.
In the present embodiment, fiber paste pump is the art common apparatus, and the utility model does not limit its structure.
It is represented 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 (10)
1. a kind of Loose tube, which is characterized in that including tube body, the optical fiber for the inside for being set to the tube body and low temperature resistant fiber paste,
The low temperature resistant fiber paste is filled in the inside of the tube body, and the optical fiber accounts for the 40~60% of the inner space of the tube body.
2. Loose tube according to claim 1, which is characterized in that a diameter of 180~220 μm of the optical fiber.
3. Loose tube according to claim 2, which is characterized in that the core number of the optical fiber is 2~24 cores.
4. Loose tube according to claim 1, which is characterized in that the Loose tube is by polybutylene terephthalate (PBT) system
It forms.
5. a kind of low temperature resistant air-blowing minisize optical cable, which is characterized in that including cable core structure, be set to the cable core structure outer layer
Sheath, the cable core structure are made of reinforcer and such as Claims 1-4 any one of them Loose tube, and the Loose tube is set
It is placed in the periphery of the reinforcer.
6. low temperature resistant air-blowing minisize optical cable according to claim 5, which is characterized in that the outer surface of the reinforcer is equipped with
Reinforcer bed course.
7. low temperature resistant air-blowing minisize optical cable according to claim 6, which is characterized in that the low temperature resistant air-blowing minisize optical cable
Waterproofing type aramid fiber is further included, the waterproofing type aramid fiber is set to the outer surface of the cable core structure in the form of winding.
8. low temperature resistant air-blowing minisize optical cable according to claim 7, which is characterized in that the number of the waterproofing type aramid fiber is
Even number.
9. low temperature resistant air-blowing minisize optical cable according to claim 5, which is characterized in that the low temperature resistant air-blowing minisize optical cable
Tear rope is further included, the tear rope is set between the Loose tube and the sheath.
10. a kind of low temperature resistant air-blowing minisize optical cable system, which is characterized in that resistance to including such as claim 5 to 9 any one of them
Low temperature air-blowing minisize optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126137.7U CN207488562U (en) | 2017-09-04 | 2017-09-04 | Loose tube, low temperature resistant air-blowing minisize optical cable and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721126137.7U CN207488562U (en) | 2017-09-04 | 2017-09-04 | Loose tube, low temperature resistant air-blowing minisize optical cable and its system |
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| Publication Number | Publication Date |
|---|---|
| CN207488562U true CN207488562U (en) | 2018-06-12 |
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| CN201721126137.7U Active CN207488562U (en) | 2017-09-04 | 2017-09-04 | Loose tube, low temperature resistant air-blowing minisize optical cable and its system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357016A (en) * | 2017-09-04 | 2017-11-17 | 江苏亨通光电股份有限公司 | Loose tube and low temperature resistant air-blowing minisize optical cable |
-
2017
- 2017-09-04 CN CN201721126137.7U patent/CN207488562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357016A (en) * | 2017-09-04 | 2017-11-17 | 江苏亨通光电股份有限公司 | Loose tube and low temperature resistant air-blowing minisize optical cable |
| CN107357016B (en) * | 2017-09-04 | 2020-01-14 | 江苏亨通光电股份有限公司 | Loose tube and low-temperature-resistant air-blowing miniature optical cable |
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