CN114664486A - Optical cable for preventing biting - Google Patents
Optical cable for preventing biting Download PDFInfo
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- CN114664486A CN114664486A CN202210194345.XA CN202210194345A CN114664486A CN 114664486 A CN114664486 A CN 114664486A CN 202210194345 A CN202210194345 A CN 202210194345A CN 114664486 A CN114664486 A CN 114664486A
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- optical cable
- cable
- layer
- optical
- buffer layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/24—Scaring or repelling devices, e.g. bird-scaring apparatus using electric or magnetic effects, e.g. electric shocks, magnetic fields or microwaves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Life Sciences & Earth Sciences (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Communication Cables (AREA)
Abstract
The invention belongs to the field of optical cables, and particularly relates to a bite-preventing optical cable. It includes: the cable comprises a cable core, a buffer layer, a conducting layer, an outer sheath and an induction layer; the cable core is formed by binding and fixing a plurality of optical fibers by non-woven fabric wrapping belts, and the buffer layer is wrapped outside the cable core; the conducting layer is arranged outside the buffer layer and consists of a plurality of conducting wires which are uniformly arranged on the optical cable in the circumferential direction; the outer sheath is coated on the outer surface of the conductive layer; the outer surface of the outer sheath is provided with an induction layer, the induction layer is a metal film, and gravure printing is arranged on the outer surface of the induction layer in an array mode. The optical cable can improve the anti-bite effect of the optical cable in an electric stimulation mode; the environmental electric field generated by the conductive layer in the optical cable is effectively and fully utilized; the biting prevention effect can be effectively maintained for a long time.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a bite-preventing optical cable.
Background
In recent years, with the national emphasis on optical fiber communication and long-distance power transmission, the use demand of optical cables with optical and electrical transmission is greatly increased. A new series of problems also ensues.
For example, conventional optical cables do not have a good anti-biting effect. In the traditional optical cable and the cable, the optical cable and the cable can generate relatively excellent anti-bite effect through special structural arrangement, but for the optical cable, due to hierarchical distribution and internal complexity of the structure, the original anti-bite mode is not suitable any more. Especially, in the traditional physical protection mode, the reinforced armor structure is arranged on the outer surface of the photoelectric wire, so that the arrangement of the photoelectric wires in the photoelectric wire is greatly limited.
The chemical anti-biting method with relatively low requirements has more limited effect and is easy to cause environmental pollution.
Disclosure of Invention
The invention provides a photoelectric cable capable of preventing biting, aiming at solving the problems that the existing photoelectric cable does not have good biting prevention performance, or the existing biting prevention mode is easy to cause environmental pollution and the like.
The invention aims to:
firstly, ensuring that the optical cable has good anti-biting performance;
secondly, a large space for designing and arranging the photoelectric wire can be reserved in the optical cable;
and thirdly, the problem of environmental pollution can be effectively avoided.
In order to achieve the purpose, the invention adopts the following technical scheme.
An optical cable for preventing biting, comprising:
the cable comprises a cable core, a buffer layer, a conductive layer, an outer sheath and an induction layer;
the cable core is formed by binding and fixing a plurality of optical fibers by non-woven fabric wrapping belts, and the buffer layer is wrapped outside the cable core;
the conducting layer is arranged outside the buffer layer and consists of a plurality of conducting wires which are uniformly arranged on the optical cable in the circumferential direction;
the outer sheath is coated on the outer surface of the conductive layer;
the outer surface of the outer sheath is provided with an induction layer, the induction layer is a metal film, and gravure printing is arranged on the outer surface of the induction layer in an array mode.
As a preference, the first and second liquid crystal compositions are,
the optical fiber line is an optical fiber bundle formed by hooking a single optical fiber or a plurality of optical fibers.
As a preference, the first and second liquid crystal compositions are,
the metal film of the induction layer is a copper film or a copper-silver alloy film or a copper-aluminum alloy film.
As a preference, the first and second liquid crystal compositions are,
the induction layer is prepared by spraying, vapor plating, chemical immersion plating or electroplating.
As a preference, the first and second liquid crystal compositions are,
the buffer layer is provided with a plurality of oblong grooves;
the long circular grooves are uniformly arranged in the circumferential direction of the cable core.
As a preference, the first and second liquid crystal compositions are,
a hollow elastic tube is arranged in the long circular groove.
As a preference, the first and second liquid crystal compositions are,
the outer wall of the hollow elastic tube is abutted to two ends of the long circular groove along the radial direction of the optical cable, and at most simultaneously contacts with the arc-shaped side wall on one side of the long circular groove in the circumferential direction of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the long direction of the long circular groove is perpendicular to the radial direction of the optical cable.
As a preference, the first and second liquid crystal compositions are,
the gravure depth was 0.5 to 1.0 mm.
The invention has the beneficial effects that:
1) the anti-biting effect of the optical cable is greatly improved in an electrical stimulation mode;
2) the environmental electric field generated by the conducting layer in the optical cable is effectively and fully utilized;
3) the anti-biting effect can be effectively maintained for a long time;
4) the structure is simple, and the optical cable can be guaranteed to have a larger ground space for arranging the optical cable;
5) can avoid the problems of environmental pollution and the like caused by the traditional chemical anti-biting mode.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the optical cable engaging deformation of the present invention;
in the figure: 100 cable cores, 101 optical fibers, 102 non-woven fabric wrapping bands, 200 buffer layers, 201 long circular grooves, 202 hollow elastic tubes, 300 conductive layers, 301 conductive wires, 400 outer sheaths, 401 induction layers and 4011 gravure.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to specific embodiments and the attached drawing figures. Those skilled in the art will be able to practice the invention based on these descriptions. Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "a plurality" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all those known to those skilled in the art.
Example 1
An optical cable for preventing biting as shown in fig. 1, comprising:
the cable comprises a cable core 100, a buffer layer 200, a conducting layer 300, an outer sheath 400 and an induction layer 401;
the cable core 100 is formed by binding and fixing a plurality of optical fiber lines 101 by non-woven fabric wrapping belts 102, wherein the optical fiber lines 101 are optical fiber bundles formed by a single optical fiber or a plurality of optical fibers and are used for transmitting and transmitting optical signals and realizing the communication function of optical cables;
the buffer layer 200 is used for realizing mechanical protection of the cable core 100, and a buffer structure is arranged to avoid the problem that the transmission loss of the optical fiber 101 and even the core breaking and signal transmission failure occur due to the fact that external acting force directly acts on the cable core 100;
the conductive layer 300 is arranged outside the buffer layer 200 and is composed of a plurality of conductive wires 301 uniformly arranged on the circumference of the optical cable, and the conductive wires 301 are conventional copper wires or copper-aluminum alloy conductive wires and are used for realizing power transmission;
the outer sheath 400 covers the outer surface of the conductive layer 300, and is used for realizing mechanical protection of the whole optical cable and avoiding damage to the conductive wire 301 in the conductive layer 300 and/or damage to the optical fiber 101 in the cable core 100 caused by the external environment;
in the structure, the two functional layers of the conductive and optical signal transmission are arranged in an orderly staggered distribution manner, so that the mutual interference is avoided, and particularly, under the condition of high-voltage power transmission, the conductive wire 301 and the optical fiber 101 are too close to each other, so that certain influence is easily generated on the optical signal transmission;
on the other hand, the arrangement of the outer sheath 400 can realize the basic mechanical protection of the cable, avoid the conventional environmental corrosion, collision extrusion and the like, the conductive layer 300 is arranged outside the buffer layer 200, and the secondary protection is not formed by the buffer layer 200, so that the characteristic that the conductive wire 301 in the conductive layer 300 has better mechanical property is utilized, and the conductive wire is taken as a reinforcing piece and a unique buffer structure to realize the protection of the internal cable core 100, more importantly, because the invention needs to make special use of the environmental electric field generated by the conductive layer 300, the buffer layer 200 arranged outside the conductive layer 300 is easy to generate interference to the environmental electric field generated by the conductive layer 300, and particularly, the buffer layer 200 is more obviously influenced under the condition that the buffer layer 200 needs to be arranged into a special non-solid round structure, therefore, the arrangement position of the buffer layer 200 has very special significance for the scheme of the invention, cannot be adjusted simply;
the outer surface of the outer sheath 400 of the invention is provided with a layer of metal film by any conventional mode such as spraying, vapor plating, chemical immersion plating or electroplating, and the metal film preferably adopts a metal material such as copper, copper-silver alloy or copper-aluminum alloy which has soft quality and relatively excellent conductivity to form an induction layer 401;
the sensing layer 401 forms a plurality of concave prints 4011 which are orderly distributed in an array and are inwards concave along the radial direction on the outer surface thereof by conventional means such as impressing, and the depth of the concave prints 4011 is 0.5-1.0 mm;
the gravure can form induction electricity under the action of an environmental electric field generated by the conductive layer 300, compared with a flat surface, the gravure 4011 can enable high and low potential differences to exist in the induction layer 401, and a charge accumulation phenomenon similar to point discharge is formed at the position of the gravure 4011, so that when a rodent bites an optical cable, static electricity can be instantly released, and a relatively obvious electrical stimulation is formed for the rodent, so that the rodent is driven, and the photoelectric cable is prevented from being bitten;
in addition, since the induced electricity generated by the above structure is based on the environmental electric field generated by the conductive layer 300 used by the optical cable itself for power transmission, as long as the optical cable is still in normal use and the conductive layer 300 can normally radiate the electric field to the surrounding environment, the above structure does not need to be maintained, and has the effect of driving rodents for a long time to avoid biting.
Example 2
On the basis of example 1:
the buffer layer 200 is improved, specifically as shown in fig. 1, a plurality of oblong grooves 201 are uniformly arranged in the circumferential direction outside the cable core 100, the long direction of the oblong grooves 201 is perpendicular to the radial direction of the optical cable, and a hollow elastic tube 202 is correspondingly arranged in each oblong groove 201;
the outer wall of the hollow elastic tube 202 is abutted to two ends of the oblong groove 201 along the radial direction of the optical cable, and at most simultaneously contacts the arc-shaped side wall on one side of the oblong groove in the circumferential direction of the optical cable, namely, the hollow elastic tube 202 is loosely arranged in the oblong groove 201 and can move along the length direction of the oblong groove;
the arrangement of the long circular groove 201 can increase the relative displacement generated by the sensing layer 401 after being stressed, and the arrangement of the hollow elastic tube 202 can ensure the roundness support of the hollow elastic tube and is beneficial to subsequent elastic recovery;
the common optical cable adopts a solid buffer layer, the cable core 100 is easy to be extruded and damaged in the process of nibbling and biting, the common solid buffer layer 200 is structurally improved to form the buffer layer 200 which is semi-hollow and provided with the oblong groove 201, and in order to ensure the roundness supporting effect of the buffer layer 200 and reduce the deformation of the buffer layer after being stressed, the hollow elastic tube 202 is arranged in the oblong groove 201, so that the whole optical cable can form buffering through deformation after being nibbled and promote deformation resetting, the optical fiber part of the cable core 100 is prevented from being directly extruded, and meanwhile, the test shows that the anti-nibbling effect of the optical cable can be further enhanced after the buffer layer 200 with the structure is arranged;
because the original anti-bite effect is generated only by the electric field effect of the conductive layer 300 and the potential difference formed by the matching of the electric field effect and the tip-like discharge, the main reason is that the electrostatic charges form a loop discharge after the rodent is bitten, and then the electrical stimulation is generated on the rodent to prevent the rodent from being bitten, but under the condition of large humidity such as rain and snow weather, the electrostatic charges are very easy to release to cause the actual anti-bite effect to be reduced, and after the buffer layer 200 structure is arranged, the relative movement of the sensing layer 401 is increased due to the strong electric field effect and the internal hollow structure, the movement of the sensing layer 401 generates an electromagnetic induction phenomenon in the biting process, and the magnetic field generates a weak current to replace the original electrostatic stimulation effect, so that the good anti-bite effect can be kept in the rain and snow weather;
specifically, as shown in fig. 2, the optical cable generates F1 acting force according to the biting action, and with the structure of the buffer layer 200, the hollow elastic tube 202 in the oblong slot 201 can deviate along the direction a, so that the buffer layer 200 has a larger elastic deformation space along the direction b, and further the sensing layer 401 can generate a larger relative displacement along the direction c.
Testing of important indicators
The anti-biting test was performed on the anti-biting optical cable having the structure of the above-described example 1 and example 2. Four easily-observed 2m multiplied by 2 m-sized full-transparent glass rooms are arranged, 5 tested cables with the length of 1.5m are erected at the height of 0.35m, 8 male red-belly squirrels with strong climbing habits and nibbling habits are thrown into each full-transparent glass room, the selected red-belly squirrels have basically the same physical signs and meet the animal experiment standard, the shooting duration of 3d is continuously observed and recorded, the total climbing times, the average time length of single-climbing passing, the average standing time length and the nibbling times of the tested cables are recorded in each full-transparent glass room, the research application [ J ] of a mousing optical cable, China New communication, 2012,000(016):54-55.] in the text is referred to judge the damage degree of the tested cables, and the index is the average value of 15 tested cables.
The tests respectively control the relative humidity in the full-transparent glass house to be 85% as a rain simulation control and the relative humidity to be 50% as a sunny simulation control.
The test shows that:
in a rainy simulation environment, the average damage index of the example 1 is 0.93, and in a sunny simulation environment, the average damage index of the example 1 is 0.30;
the average damage index of example 2 was 0.33 in a rainy simulated environment and 0.17 in a sunny simulated environment.
According to the test data, the optical cable has excellent anti-biting effect, and the internal structure of the optical cable can be further improved according to actual use requirements so as to adapt to rain and snow weather and enhance the relative use effect of the optical cable in the rain and snow weather.
Claims (9)
1. An optical cable for preventing biting, comprising:
the cable comprises a cable core, a buffer layer, a conductive layer, an outer sheath and an induction layer;
the cable core is formed by binding and fixing a plurality of optical fibers by non-woven fabric wrapping belts, and the buffer layer is wrapped outside the cable core;
the conducting layer is arranged outside the buffer layer and consists of a plurality of conducting wires which are uniformly arranged on the optical cable in the circumferential direction;
the outer sheath is coated on the outer surface of the conductive layer;
the outer surface of the outer sheath is provided with an induction layer, the induction layer is a metal film, and gravure is arranged on the outer surface of the induction layer in an array mode.
2. The optical cable of claim 1, wherein the optical cable is adapted to prevent biting,
the optical fiber line is an optical fiber bundle formed by hooking a single optical fiber or a plurality of optical fibers.
3. The optical cable of claim 1, wherein the optical cable is adapted to prevent biting,
the metal film of the induction layer is a copper film or a copper-silver alloy film or a copper-aluminum alloy film.
4. A bite-resistant optical cable as claimed in claim 1 or 3,
the induction layer is prepared by spraying, vapor plating, chemical immersion plating or electroplating.
5. The optical cable of claim 1, wherein the optical cable is adapted to prevent biting,
the buffer layer is provided with a plurality of oblong grooves;
the long circular grooves are uniformly arranged in the circumferential direction of the cable core.
6. The optical cable of claim 5, wherein the optical cable is adapted to prevent biting,
a hollow elastic tube is arranged in the long circular groove.
7. The optical cable of claim 6, wherein the optical cable is adapted to prevent biting,
the outer wall of the hollow elastic tube is abutted to two ends of the long circular groove along the radial direction of the optical cable, and at most simultaneously contacts with the arc-shaped side wall on one side of the long circular groove in the circumferential direction of the optical cable.
8. The optical cable of claim 5, wherein the optical cable is adapted to prevent biting,
the long direction of the long circular groove is perpendicular to the radial direction of the optical cable.
9. The optical cable of claim 1, wherein the optical cable is adapted to prevent biting,
the gravure depth is 0.5 to 1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194345.XA CN114664486B (en) | 2022-03-01 | 2022-03-01 | Anti-biting optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194345.XA CN114664486B (en) | 2022-03-01 | 2022-03-01 | Anti-biting optical cable |
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| CN114664486A true CN114664486A (en) | 2022-06-24 |
| CN114664486B CN114664486B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210194345.XA Active CN114664486B (en) | 2022-03-01 | 2022-03-01 | Anti-biting optical cable |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3878444A (en) * | 1974-01-21 | 1975-04-15 | Tesco Eng Co | Method and apparatus for protecting electrical field cables against rodent damage |
| CN207927668U (en) * | 2018-02-26 | 2018-10-02 | 李安迪 | A kind of induced electricity type animal driving device |
| CN109452259A (en) * | 2017-12-28 | 2019-03-12 | 国网浙江省电力公司嘉兴供电公司 | A kind of self-induced electrostatic bird-scaring unit |
| CN111427126A (en) * | 2020-03-30 | 2020-07-17 | 杭州富通通信技术股份有限公司 | Optical cable for preventing biting |
-
2022
- 2022-03-01 CN CN202210194345.XA patent/CN114664486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3878444A (en) * | 1974-01-21 | 1975-04-15 | Tesco Eng Co | Method and apparatus for protecting electrical field cables against rodent damage |
| CN109452259A (en) * | 2017-12-28 | 2019-03-12 | 国网浙江省电力公司嘉兴供电公司 | A kind of self-induced electrostatic bird-scaring unit |
| CN207927668U (en) * | 2018-02-26 | 2018-10-02 | 李安迪 | A kind of induced electricity type animal driving device |
| CN111427126A (en) * | 2020-03-30 | 2020-07-17 | 杭州富通通信技术股份有限公司 | Optical cable for preventing biting |
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| CN114664486B (en) | 2023-07-25 |
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