CN205750015U - A kind of lightweight rodent-resistant cable - Google Patents
A kind of lightweight rodent-resistant cable Download PDFInfo
- Publication number
- CN205750015U CN205750015U CN201620394224.XU CN201620394224U CN205750015U CN 205750015 U CN205750015 U CN 205750015U CN 201620394224 U CN201620394224 U CN 201620394224U CN 205750015 U CN205750015 U CN 205750015U
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- Prior art keywords
- reinforcement
- rodent
- lightweight
- cable
- resistant cable
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- 241000283984 Rodentia Species 0.000 title claims abstract description 38
- 230000002787 reinforcement Effects 0.000 claims abstract description 48
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 5
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 38
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 13
- 230000001681 protective effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
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- 241000700159 Rattus Species 0.000 description 14
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- 206010035148 Plague Diseases 0.000 description 6
- 241000607479 Yersinia pestis Species 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
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- 238000002474 experimental method Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 241000053227 Themus Species 0.000 description 2
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- 239000011521 glass Substances 0.000 description 2
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- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004154 testing of material Methods 0.000 description 2
- 206010002515 Animal bite Diseases 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
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- 235000019504 cigarettes Nutrition 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 239000008397 galvanized steel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000013307 optical fiber Substances 0.000 description 1
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Abstract
This utility model is created and is provided a kind of lightweight rodent-resistant cable, including the cable core set gradually from the inside to the outside, inner sheath, armouring enhancement Layer and oversheath；Described armouring enhancement Layer includes spaced some reinforcements, described reinforcement centered by cable core in the described uniform setting of inner sheath excircle.Described inner sheath and described oversheath are HDPE sheath.In this utility model creation, the reinforcement of armouring enhancement Layer is evenly arranged at certain intervals, obviously from the quantity that armouring reinforcement uses than close-packed arrays time few a lot, optical cables heavy can alleviate a lot, production technology is relatively easy, and secondly, the specification of reinforcement conventional in the market is at more than 0.8mm, reinforcement in this utility model creation can use the reinforcement of smaller diameter, and the usage amount of protective cover material also can be substantially reduced, this not only effectively reduces cable weight, more economically.
Description
Technical field
The invention belongs to optical fiber transmission technique field, especially relates to a kind of lightweight rodent-resistant cable.
Background technology
Along with developing rapidly of communication industry, communications optical cable suffers the plague of rats in actual environment again and again, causes not
Appreciable loss.The plague of rats described in optical cable industry, is often referred to optical cable owing to laying grinding tooth in environment
Animal bites optical cable disabler, service life shortening and the communication disruption stung and cause, and it is logical that the plague of rats causes
Letter Cable's Fault makes social activity and national economy suffer immeasurable loss；Wherein, Mus refers to and causes
The rodent that this type of optical cable damages.
At present, the mouse bite preventing method that communications optical cable uses has chemical protection against rodents method and physics protection against rodents method.Chemistry is anti-
Mus method refers to that interpolation repellant substance is to reach protection against rodents purpose in Cable jacket materials, and repellant substance is the pepperyyest
The strong stimulation chemical substances such as gourmet powder.Using chemistry protection against rodents method, cable configuration changes not, and production cost is low,
Laying as ordinary optical cable of optical cable；But from the point of view of environmental protection and protection against rodents persistency, optical cable is in the course of processing
In, can volatilize the most pungent gas and white cigarette, and processing staff and environment are had pollution, it addition, peppery
Gourmet powder can migrate from protective cover material and can send out, and environment is had pollution, it is also difficult to ensures its protection against rodents effect and has
The effect time；The most not promotion use the method.
Physics protection against rodents method mainly divides two classes, and a kind of is by using the metal material of high rigidity to reach opposing
The purpose of damaged by rats, as increased stainless steel band armouring, double-deck galvanized steel strip round steel wrapped, slender in optical cable
Silk armouring etc.；Steel-tape armouring optical cable, it is adaptable to slight plague of rats area, has certain protection against rodents effect, but
Speed of production is relatively slow, and cost is high；The wrapped armored optical cable of steel band, it is adaptable to moderate plague of rats area, has one
Fixed protection against rodents effect, but speed of production is slow, and cost is high；Wire armoring structure optical cable, it is adaptable to severe Mus
Evil area, has obvious protection against rodents effect, but production efficiency is low, optical cable Heavy Weight, high cost.
Another kind is by using nonmetallic materials to carry out protection against rodents, such as organdy armouring, FRP armouring etc., fits
For slight plague of rats area, there is certain protection against rodents effect, but speed of production is relatively slow, and cost is high.
Summary of the invention
In view of this, the invention is directed to a kind of lightweight rodent-resistant cable, alleviates the same of optical cable weight
Time, also there is good rodent-proof characteristic.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of lightweight rodent-resistant cable, strengthens including the cable core set gradually from the inside to the outside, inner sheath, armouring
Layer and oversheath；Described armouring enhancement Layer includes spaced some reinforcements, described reinforcement with
In the described uniform setting of inner sheath excircle centered by cable core.
Further, described inner sheath and described oversheath are HDPE sheath.
Further, described reinforcement is phosphating steel wire or zinc-coated wire.
Further, described reinforcement is FRP reinforcement.
Further, described reinforcement external diameter is 0.2-2mm.
Further, reinforcement center distance described in each two is 0.1-10mm.
Further, it is additionally provided with armoured layer outside described oversheath.
Further, vertical Baogang band armor it is additionally provided with between described armouring enhancement Layer and described inner sheath.
Further, described reinforcement is embedded between described inner sheath and described oversheath.
Relative to prior art, a kind of lightweight rodent-resistant cable described in the invention has the advantage that
Reinforcement in armouring enhancement Layer is evenly arranged at certain intervals, has good preventing the most equally
Mus performance, and optical cables heavy can alleviate a lot, and production technology is relatively easy, the reinforcement of application small diameter
Part, it can be ensured that cable outer diameter does not transfinites.The usage amount of protective cover material also can be substantially reduced, and this is the most effective
Reduce cable weight, more economically.
Accompanying drawing explanation
The accompanying drawing of the part constituting the invention is used for providing being further appreciated by the invention,
The schematic description and description of the invention is used for explaining the invention, is not intended that this
The improper restriction of bright creation.In the accompanying drawings:
Fig. 1 is the structural representation of the invention；
Fig. 2 is the structural representation contrasting optical cable in the invention embodiment.
Description of reference numerals:
1-cable core；2-inner sheath；3-indulges Baogang's band armor；4-armouring enhancement Layer；5-oversheath；6-
Reinforcement；The armoured layer of 7-.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in the invention and embodiment
Feature can be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached
Orientation shown in figure or position relationship, be for only for ease of description the invention and simplify description, and not
Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that restriction to the invention.Additionally, term " first ", " second "
Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication
The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed
Or implicitly include one or more this feature.In the description of the invention, unless otherwise
Illustrating, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition
Concrete meaning in innovation and creation.
Describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of lightweight rodent-resistant cable, as it is shown in figure 1, the cable core 1 including setting gradually from the inside to the outside, interior
Sheath 2, armouring enhancement Layer 4 and oversheath 5；If described armouring enhancement Layer 4 includes spaced
Dry reinforcement 6, described reinforcement 6 centered by cable core 1 in the described inner sheath 2 uniform setting of excircle.
Wherein, described inner sheath 2 and described oversheath 5 are HDPE sheath, use high-density polyethylene
Alkene sheath, has good thermostability and tolerance to cold, and chemical stability is good, also have higher rigidity and
Toughness, mechanical strength is good.Dielectric properties, environmental stress crack resistance is preferable.
Wherein, described reinforcement 6 uses phosphating steel wire or zinc-coated wire, or uses FRP reinforcement.
Being simple to manufacture, production efficiency is high, and is placed between two-layer sheath owing to reinforcement 6 is evenly spaced,
Obviously few more a lot of than close-packed arrays from the quantity that armouring reinforcement uses, cable heavily can alleviate a lot,
Production technology is relatively easy, secondly, the specification of current reinforcement at more than 0.8mm, the present invention's
Armouring reinforcement can use the reinforcement of smaller diameter, and the usage amount of protective cover material also can drop significantly
Low, this not only effectively reduces cable weight, more economically.
Wherein, described reinforcement 6 external diameter is 0.2-2mm, preferably 0.6mm, and protection effect is good, and has
Effect ensures to make cable outer diameter be in less scope.
Wherein, described oversheath 5 is outside is additionally provided with armoured layer 7, and concrete, armoured layer 7 is permissible
Using steel band to indulge bag armouring, the wrapped armouring of steel band, the vertical bag armouring of FRP band, FRP carries wrapped armouring, glass
Glass silvalin is wrapped, thin round steel wire armouring or employing nylon sheath wire.
Wherein, between described armouring enhancement Layer 4 and described inner sheath 2, it is additionally provided with vertical Baogang band armor 3,
Inner sheath 2 is formed effectively protection.
Wherein, described reinforcement 6 is embedded between described inner sheath 2 and described oversheath (if at armouring
When arranging vertical Baogang's band armor 3 between enhancement Layer 4 and inner sheath 2, then reinforcement 6 is embedded in described
Between vertical Baogang band armor 3 and described oversheath).
Reinforcement 6 described in each two is able to ensure that the interval playing effective protection against rodents effect, uses GB
GB/T29199-2012 optical cable rodent-proof characteristic detection method, determines by experiment, experimental result shows,
Each two reinforcement 6 center distance is 0.1-10mm, preferably 5mm, can effectively play protection against rodents effect.
The quality of optical cable can well be reduced again.
The lightweight rodent-resistant cable that the results show the invention is provided has equal rodent-proof characteristic.
Owing in this lightweight rodent-resistant cable, the reinforcement of armouring enhancement Layer is evenly arranged at certain intervals, it is clear that from
In the quantity that armouring reinforcement uses than close-packed arrays time few a lot, optical cables heavy can alleviate a lot, gives birth to
Production. art is relatively easy, secondly, the specification of reinforcement conventional in the market at more than 0.8mm,
Reinforcement in the invention can use the reinforcement of smaller diameter, and the usage amount of protective cover material is also
Can be substantially reduced, this not only effectively reduces cable weight, more economically.
During experiment, by compact arranged for reinforcement 6 specification optical cable optical cable as a comparison of the same race, contrast optical cable
Structure is as shown in Figure 2.In test, between the reinforcement 6 the invention provided, leave gap
Lightweight rodent-resistant cable, all uses direct damaged by rats method to carry out rodent-proof characteristic test together with contrast optical cable.
The adult Wister rat of the intact mistake of upper and lower front tooth and health is chosen in test, is divided into A and B two groups,
Often group 20, each 10 of male and female；Test starts simultaneously at and carries out, and collection every day is visible becomes scattered about mouse cage
In material chips；The nursing of Mus, in addition to uninterrupted offer clean drinking water, Mus feedstuff is fed in timing；
In process of the test, timing every day is observed sample optical cable and is destroyed situation by damaged by rats, and claps destruction part
According to and record, test the bidentate trace type and monodentate collected every day the most respectively with analytical balance and micrometer
The weight of trace type chip and thickness；When the 10th day, the chip that this lightweight rodent-resistant cable is collected reaches
100, terminate this test of two optical cables simultaneously.For ensureing the accuracy of experimental result, Ke Yichong
Multiple experiment is for several times.Calculate the Capability index of resistance to damaged by rats R afterwardsP。
The Capability index of resistance to damaged by rats RPThe formula that is calculated as follows:
In formula: n is the sheath number of plies in test optical cable, when the restrictive coating being similar to outside polyethylene coating nylon
Should separately count the sheath number of plies, to jacket thickness less than the average chip thickness obtained with identical testing of materials
Time, people's sheath number of plies disregarded by this layer of sheath；
M is the contrast cable jacket number of plies, should separately count when being similar to the restrictive coating of coating nylon with outside polyethylene
The sheath number of plies, during to jacket thickness less than the average chip thickness obtained with identical testing of materials, this layer protects
Set is not counted in the sheath number of plies；
Vi is i-th layer of sheath material volume of test optical cable that A group Mus needs to bite off before destroying optical cable, can determine
Justice i layer sheath volume corresponding to unit length optical cable；
Vj is the contrast optical cable jth layer sheath material volume that B group Mus needs to bite off before destroying optical cable, can
It is defined as j layer sheath volume corresponding to unit length optical cable；
The average external volume of test i-th layer of sheath material of optical cable can be bitten flatly off for testing the Mus obtained；
The test average external volume of contrast optical cable jth layer material can be bitten flatly off for testing the Mus obtained.
By calculating, the Capability index of resistance to damaged by rats RP=1.006, it is approximately equal to 1, result of the test shows, two
The resistance to Wister rat of individual optical cable bites the ability stung quite, and therefore, two reinforcement 6 center distance are
Remain to during 0.1-10mm well play protection against rodents effect, be also effectively reduced the weight of optical cable.The present invention creates
Making the manufacturing easily, production efficiency is high, saves material, and protection against rodents is effective, light weight.
The foregoing is only the preferred embodiment of the invention, not in order to limit present invention wound
Make, within all spirit in the invention and principle, any modification, equivalent substitution and improvement made
Deng, within should be included in the protection domain of the invention.
Claims (9)
1. a lightweight rodent-resistant cable, it is characterised in that: the cable core that includes setting gradually from the inside to the outside,
Inner sheath, armouring enhancement Layer and oversheath；Described armouring enhancement Layer includes spaced some reinforcements
Part, described reinforcement centered by cable core in the described uniform setting of inner sheath excircle.
A kind of lightweight rodent-resistant cable the most according to claim 1, it is characterised in that: protect in described
Set and described oversheath are HDPE sheath.
A kind of lightweight rodent-resistant cable the most according to claim 1, it is characterised in that: described reinforcement
Part is phosphating steel wire or zinc-coated wire.
A kind of lightweight rodent-resistant cable the most according to claim 1, it is characterised in that: described reinforcement
Part is FRP reinforcement.
A kind of lightweight rodent-resistant cable the most according to claim 1, it is characterised in that: described reinforcement
Part external diameter is 0.2-2mm.
A kind of lightweight rodent-resistant cable the most according to claim 1, it is characterised in that: each two institute
Stating reinforcement center distance is 0.1-10mm.
A kind of lightweight rodent-resistant cable the most according to any one of claim 1 to 6, its feature exists
In: it is additionally provided with armoured layer outside described oversheath.
A kind of lightweight rodent-resistant cable the most according to any one of claim 1 to 6, its feature exists
In: it is additionally provided with vertical Baogang band armor between described armouring enhancement Layer and described inner sheath.
A kind of lightweight rodent-resistant cable the most according to any one of claim 1 to 6, its feature exists
In: described reinforcement is embedded between described inner sheath and described oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394224.XU CN205750015U (en) | 2016-05-04 | 2016-05-04 | A kind of lightweight rodent-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394224.XU CN205750015U (en) | 2016-05-04 | 2016-05-04 | A kind of lightweight rodent-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205750015U true CN205750015U (en) | 2016-11-30 |
Family
ID=57372034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394224.XU Expired - Fee Related CN205750015U (en) | 2016-05-04 | 2016-05-04 | A kind of lightweight rodent-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205750015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842801A (en) * | 2016-05-04 | 2016-08-10 | 通鼎互联信息股份有限公司 | Lightweight rodent-resistant optical cable |
| CN107688218A (en) * | 2017-08-25 | 2018-02-13 | 江苏中天科技股份有限公司 | A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof |
-
2016
- 2016-05-04 CN CN201620394224.XU patent/CN205750015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842801A (en) * | 2016-05-04 | 2016-08-10 | 通鼎互联信息股份有限公司 | Lightweight rodent-resistant optical cable |
| CN107688218A (en) * | 2017-08-25 | 2018-02-13 | 江苏中天科技股份有限公司 | A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |