CN112904514A - Rat-proof optical cable and manufacturing method thereof - Google Patents
Rat-proof optical cable and manufacturing method thereof Download PDFInfo
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- CN112904514A CN112904514A CN202110317722.XA CN202110317722A CN112904514A CN 112904514 A CN112904514 A CN 112904514A CN 202110317722 A CN202110317722 A CN 202110317722A CN 112904514 A CN112904514 A CN 112904514A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Life Sciences & Earth Sciences (AREA)
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a rat-proof optical cable and a manufacturing method thereof, and relates to the technical field of optical cable manufacturing, wherein the rat-proof optical cable comprises an optical cable main body, the optical cable main body comprises a cable core, and a composite inner protection layer and a main body outer protection layer which are coated on the outer side of the cable core from inside to outside, a repellent layer is arranged between the composite inner protection layer and the main body outer protection layer, the repellent layer is coated on the outer side of the composite inner protection layer, the main body outer protection layer is coated on the outer side of the repellent layer in an extrusion molding manner, the repellent layer comprises a carrier material for the optical cable and a repellent, and the repellent is attached to the carrier material in a bonding or coating manner; by implementing the technical scheme, the technical problem that the existing overhead laying optical cable is poor in protection ability of rodents to bite can be effectively solved, the construction design of a communication line does not need to be changed when the optical cable is applied to the construction or maintenance of an optical cable line, the protection measure for preventing the rodents from biting and breaking the optical fiber when the optical cable is applied to the overhead laying of the optical cable is simplified, and the production, manufacturing and using cost of the ratproof optical cable is reduced.
Description
Technical Field
The invention relates to the technical field of optical cable manufacturing, in particular to a ratproof optical cable with a repellent layer and a manufacturing method thereof.
Background
At present, in an optical fiber communication line, a large number of optical cables are installed in different ways such as overhead, pipeline and direct burial according to different line environments, the optical cables corresponding to the installation ways have different performances, and the structural differences of the optical cables form different models and characteristics. In the practice of operation and maintenance of optical cable lines, optical cables are laid overhead and pass through mountain forest areas, communication interruption accidents are caused by biting of the optical cables by rodents such as squirrels and the like, communication operators put forward the requirements on ratproof optical cable products, and various optical cable production enterprises invest in research and development resources to develop ratproof optical cable products of various models; the existing rat-proof principle is to increase the mechanical strength of the outer sheath, the sheath type is such as steel-tape armored PE bonding sheath, high-strength nylon outer sheath, glass fiber tape reinforced PE sheath, but the defect of the optical cable design double armor is as follows: the increase of the volume and the self weight of the product can increase the load of a pole, reduce redundancy and greatly increase the cost, and once the rodent starts to bite the optical cable, the rodent can continue to bite the optical cable, and after a large-area outer sheath is bitten off, the optical cable has the risk of cable breakage due to loss of protection; another rat-proof principle is that a repellent is added into an outer protective layer material, when a murine animal smells the odor of the repellent, the murine animal actively keeps away from the rat, but the repellent added into the outer protective layer material has the following defects: the technical problems that environmental hazards exist in the production process of the optical cable and the safety of constructors is affected by continuous volatilization of the repellent in the use process of the optical cable are solved. Although a great deal of ratproof optical cable products are applied to optical communication lines, the situation that the optical cable is bitten off by rodent still frequently occurs, in the accident that the optical cable is bitten off, the outer protective layer materials such as GYTS, GYTA53 and GYTS04 in the steel-tape armored optical cable are bitten off in a large area, the lap joint of the steel tape is stripped or naturally dispersed, and the cable core is bitten off due to the loss of the protection of the steel-tape armor; in the nonmetal optical cables such as the GYFTC8F, the GYFTC8F and the GYFT63, the PE reinforced sheath of the glass fiber tape can be bitten by rodents in a large area, and the cable core is bitten off due to the complete breakage of the glass fiber tape.
In view of the defect that the existing standard aerial optical cable product has poor gnawing capability on protection against rodents, the aerial optical cable installation line is possibly additionally provided with a protection pipe, the line load is increased, the construction is complex and the cost is increased; it is urgently needed to research and design a rat-proof optical cable by technical personnel in the field so as to solve the problem that rats and the like seriously affect the optical cable, reduce the manufacturing cost of optical cable products and achieve the purposes of convenient installation and construction and safe use.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a rat-proof optical cable which can effectively solve the technical problem that the existing aerial laying optical cable is poor in rat-proof animal biting capability, the optical cable is not obviously increased in weight, and the construction design of a communication line is not required to be changed when the optical cable is applied to optical cable line construction or maintenance, so that the protection measures for preventing the rat animal from biting and breaking the optical fiber when the optical cable is applied to aerial laying are simplified, the installation, protection, maintenance and the like of the optical cable are simplified, and the production, manufacturing and use costs of the rat-proof optical cable are reduced.
The technical scheme adopted by the invention is as follows:
the utility model provides a protection against rodents optical cable, includes the optical cable main part, the optical cable main part includes the cable core and at cable core outside from interior to exterior cladding compound interior sheath and main part outer sheath be equipped with between compound interior sheath and the main part outer sheath and keep away the layer, keep away the layer cladding in compound interior sheath outside, main part outer sheath extrusion molding cladding is in keeping away the layer outside, it includes carrier material and repellent for the optical cable to keep away the layer, the repellent is attached to on carrier material through bonding or coated mode in order to form the repellent layer that repellent and carrier material combined together.
The structure of the repellent layer in the technical scheme is that the repellent is added into a carrier material for the optical cable, the repellent is attached to the carrier material in a bonding or coating mode to form the repellent layer combined with the carrier material, a composite inner protection layer is wrapped on the outer side of a cable core in the production and manufacturing process of the rat-proof optical cable, the repellent layer is wrapped on the outer side of the composite inner protection layer, the outer side of the repellent layer is coated with a main body outer protection layer in an extrusion molding mode, the extrusion molding mode can be an extrusion tube type or an extrusion type, the repellent layer can be a compounded finished product, or the repellent can be uniformly bonded or coated on the carrier material in a production site, the manufacturing is simple, the cost is low, and the installation, protection, maintenance and;
the application principle of the technical scheme is as follows: the technical scheme is that the rat-proof optical cable is mainly used in a mountainous forest area overhead laying scene, an outer protective layer of a main body bitten by a rodent is contacted with a repellent layer, the repellent uniformly attached to a carrier material can generate strong stimulation to the oral cavity of the rodent, so that the rodent stops biting and escapes, and a composite inner protective layer is arranged in the rat-proof optical cable, so that the cable core of the optical cable is completely protected; meanwhile, the repelling layer in the technical scheme has the function of preventing the repellent from overflowing in a mode of attaching the repellent to the carrier material, and the structural performance of the repelling layer is stable in a mode of combining the repellent and the carrier material, so that the effect of preventing rat animals from biting the optical cable stably can be maintained even under the condition that the outer protective layer of the optical cable main body is damaged.
Further optionally, the carrier material is one or two of a water-blocking tape or a water-blocking yarn for the optical cable; this structural design's carrier material can effectively adhere to the repellent that plays the effect of keeping away on the one hand for keep away the protection against rodents class animal stable performance on layer, and on the other hand has waterproof function that blocks water, can not cause the infiltration accident because of the main part outer jacket is bitten bad back, protects inside cable core, even if can also keep optical cable stable performance under the impaired condition of main part outer jacket, extension optical cable life.
Further optionally, the composite inner sheath comprises an armor layer and a polyethylene layer, the armor layer is wrapped outside the cable core, and the polyethylene layer for the cable sheath is wrapped outside the armor layer in an extrusion manner to form the composite inner sheath; the cable core of the optical cable has complete protection performance due to the structural design, and the transmission performance of the optical cable can be guaranteed to be stable and reliable even if the outer protection layer of the main body is damaged by the rodent.
Further optionally, the armor layer is at least one of an embossed plastic-coated steel belt, a plastic-coated aluminum belt or a glass fiber reinforced resin belt on the outer side of the cable core; on the premise of ensuring that the mechanical performance of the optical cable is qualified, the material of the armor layer can be selected to be applied to the metal reinforced optical cable or the nonmetal reinforced optical cable.
Further optionally, the thickness range of the polyethylene layer is 1.0mm to 1.4mm, and the thickness range of the composite inner protection layer is obtained according to experiments, so that the cost can be effectively controlled under the condition that the cable core structure of the optical cable is completely protected.
Further optionally, the outer body sheath is a polyethylene outer sheath; the main body outer protective layer of the structural design does not increase the weight of the aerial optical cable, is convenient to install and maintain when applied to the construction or maintenance of an optical cable line, and reduces the production, manufacture and use cost; on the other hand combines to keep away the layer parcel in the main part outer jacket, can avoid the repellent in the course of working to volatilize and cause environmental pollution, and this structure and material select for use design benefit reasonable.
Further optionally, the thickness of the outer sheath of the body ranges from 1.4mm to 1.8 mm. The thickness range of the outer protection layer of the main body is obtained according to experiments, the cost can be effectively controlled under the condition that the internal structural part of the optical cable can be completely protected, and the weight of the optical cable is not obviously increased.
Further optionally, the repellent is capsaicin, although the repellent is not specifically limited to capsaicin, and other repellents which can generate strong stimulation to the oral cavity of the rodent in the prior art can be selected to prevent the rodent from continuing to bite the optical cable.
In a preferred embodiment of the present invention, for designing a general aerial optical cable with a repellent layer, the cable main body further includes a core strength member located at the center of the core, a plurality of tubes and fillers arranged around the core strength member, and a plurality of optical fibers located in the tubes, the tubes and fillers being twisted on the core strength member at a pitch to form the core.
In a preferred embodiment of the invention, aiming at designing the 8-shaped self-supporting layer-stranded optical cable with the repellent layer, the optical cable further comprises a self-supporting reinforcing member for aerial erection of the optical cable, a hanging strip and a reinforcing member outer protection layer coated outside the self-supporting reinforcing member, wherein the reinforcing member outer protection layer is connected with the optical cable main body through the hanging strip; as a further preference, the optical cable main body further includes a cable core reinforcing member located at the center of the cable core, a plurality of sleeves and fillers arranged around the cable core reinforcing member, and a plurality of optical fibers located in the sleeves, the sleeves and fillers being twisted on the cable core reinforcing member at a certain pitch to form the cable core; for the non-metal reinforced optical cable, the material selected for the self-supporting reinforcing part is preferably a high-strength glass fiber reinforced resin rod, and the material of the armor layer in the composite inner protective layer is preferably a glass fiber reinforced resin belt.
In a preferred embodiment of the invention, aiming at designing the 8-shaped self-supporting central tube type optical cable with the repellent layer, the optical cable further comprises a self-supporting reinforcing member for aerial erection of the optical cable, a hanging strip and a reinforcing member outer protection layer coated outside the self-supporting reinforcing member, wherein the reinforcing member outer protection layer is connected with the optical cable main body through the hanging strip; furthermore, the optical cable main body also comprises a central tube positioned in the center of the cable core and a plurality of optical fibers arranged in the central tube, and the central tube is coated on the plurality of optical fibers to form the cable core; for the nonmetal strenghthened type optical cable of the same reason, the preferred high strength glass fiber reinforced resin pole of material that the self-supporting reinforcement chose for use, the material of armor in the compound inner sheath should be the glass fiber reinforced resin area, and the preferred 0.35mm to 0.55mm of armor thickness.
On the other hand, the invention also provides a manufacturing method of the ratproof optical cable, which comprises the following steps:
the first step is as follows: coloring the optical fiber;
the second step is that: coating a plastic tube outside the plurality of colored optical fibers, and filling factice in the plastic tube to form an optical fiber sleeve;
the third step: the optical fiber sleeve and the filling member are twisted around the cable core reinforcing member in the left-right direction (SZ) to form a cable core;
the fourth step: extruding and compounding an inner protection layer on the outer side of the cable core;
the fifth step: coating a carrier material containing a repellent outside the composite inner protective layer to form a repellent layer;
and a sixth step: extruding and coating the outer side of the repellent layer with a main body outer protective layer;
the seventh step: and (5) manufacturing a finished optical cable.
The invention has at least the following beneficial effects:
1. the ratproof optical cable is provided with the composite inner protection layer with complete protection performance outside the cable core, the repellent layer is arranged between the composite inner protection layer and the main body outer protection layer to prevent rodents from biting the optical cable, the technical problem that the existing aerial laying optical cable is poor in rodent biting performance can be effectively solved, and the polyethylene layer for the optical cable sheath is extruded outside the armor layer to form the composite inner protection layer, so that the cable core of the optical cable has complete protection performance, and even after the main body outer protection layer is damaged by the rodents, the transmission performance of the optical cable can be guaranteed to be stable and reliable.
2. The repellent in the rat-proof optical cable can be adhered to the carrier material in an adhering or coating mode to form a repellent layer combined with the carrier material, and the repellent and the carrier material are combined in a cold coating or solution coating mode, so that the structural performance of the repellent layer is stable, and the stable effect of preventing rat animals from biting the optical cable can be maintained even under the condition that the outer protective layer of the optical cable main body is damaged.
3. The carrier material of the rat-proof optical cable repelling layer is preferably one or two of water-blocking tapes or water-blocking yarns for the optical cable, so that the repelling layer has a water-proof and water-blocking function while playing a repelling role, a water seepage accident caused by the fact that the main body outer protective layer is bitten down can be avoided, the internal cable core structure can be effectively protected, the optical cable can be kept stable in performance even under the condition that the main body outer protective layer is damaged, and the service life of the optical cable is prolonged.
4. The rat-proof optical cable is simple in manufacturing method and low in cost of finished optical cable, the composite inner protection layer is coated on the outer side of the cable core, the carrier material containing the repellent is coated outside the inner protection layer, and then the main body outer protection layer is coated in an extrusion molding mode, the extrusion molding mode can be an extrusion pipe type or extrusion type, the repellent can be combined with the carrier material into a compounded finished product, or the repellent can be directly and uniformly coated on the carrier material in a production field.
5. The rat-proof optical cable is used in the construction of optical cable lines in mountainous forest regions, has the performance of preventing rat animals from biting and breaking the optical cable, has no obvious increase in product weight compared with the conventional optical cable, does not need to adjust the laying construction design of optical cable communication lines, and can reduce the additional protection measure cost and maintenance cost required by line maintenance in the long-term use and maintenance process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional view of a first embodiment of the ratproof optical cable of the present invention;
FIG. 2 is a schematic cross-sectional view of a second embodiment of the ratproof optical cable of the present invention;
fig. 3 is a schematic cross-sectional view of the structure of a third embodiment of the ratproof optical cable of the present invention.
In the figure: 1-a cable body; 11-a cable core; 111-cable core reinforcement; 112-a cannula; 113-an optical fiber; 114-a filler member; 115-a central tube; 12-composite inner sheath layer; 121-an armor layer; 122-a polyethylene layer; 13-a body outer sheath; 14-a repellent layer; 2-self-supporting reinforcement; 3-a reinforcement outer jacket; 4-hanging strip.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example one
The embodiment provides a common overhead ratproof optical cable with a repellent layer, wherein fig. 1 shows a structural cross-sectional schematic view of the ratproof optical cable of the embodiment, and as shown in fig. 1, the ratproof optical cable of the embodiment comprises an optical cable main body 1, wherein the optical cable main body 1 comprises a cable core 11, and a composite inner protective layer 12 and a main body outer protective layer 13 which are coated outside the cable core 11 from inside to outside, a repellent layer 14 is arranged between the composite inner protective layer 12 and the main body outer protective layer 13, the repellent layer 14 is coated outside the composite inner protective layer 12, the main body outer protective layer 13 is coated outside the repellent layer 14 by extrusion molding, the repellent layer 14 comprises a carrier material for the optical cable and a repellent, and the repellent is attached to the carrier material by means of bonding or coating to form the repellent layer 14 in which the repellent is combined.
Above-mentioned compound inner sheath 12 is including armor 121 and polyethylene layer 122, armor 121 covers in the cable core 11 outside, it extrudes parcel optical cable sheath polyethylene layer 122 in order to form compound inner sheath 12 outside armor 121, the preferred 1.0mm to 1.4mm of thickness scope of polyethylene layer 122 in this embodiment, above-mentioned compound inner sheath 12 thickness scope is according to the experiment gained, but guarantee that optical cable 11 structure can effective control cost under the condition of complete protection, to sum up compound inner sheath 12 structural design makes the cable core 11 of optical cable have complete barrier propterty, even if receive the rodent damage back at main part outer sheath 13, also can guarantee the transmission performance reliable and stable of optical cable.
Specifically, the optical cable main body 1 provided by the present embodiment further includes a cable core reinforcing member 111 located at the center of the cable core 11, a plurality of sleeves 112 and fillers 114 disposed around the cable core reinforcing member 111, and a plurality of optical fibers 113 located inside the sleeves 112, wherein the sleeves 112 and the fillers 114 are twisted on the cable core reinforcing member 111 at a certain pitch to form the cable core 11; the rat-proof optical cable can be divided into a metal reinforced type optical cable and a non-metal reinforced type optical cable from the reinforcing form, and according to the use scene, the metal reinforced type optical cable is preferably selected in the embodiment, and the rat-proof optical cable is characterized in that the cable core reinforcing part 111 is made of high-strength steel wires, and the armoring layer 121 can be a rolled plastic-coated steel belt or a plastic-coated aluminum belt outside the cable core 11.
The optical cable is characterized in that the composite inner protective layer 12 is wrapped with the repellent layer 14 and then wrapped with the polyethylene outer protective layer in an extruded mode, and the polyethylene outer protective layer has the main effects that when the optical cable is bitten by a rodent and involves the repellent layer 14, repellent substances contained in the repellent layer 14 generate strong stimulation to the oral cavity of the rodent, the rodent is prevented from continuing to gnaw the optical cable, the composite inner protective layer 12 of the optical cable is completely stored, and finally the optical cable core 11 runs safely under the protection of the composite inner protective layer 12; as a preferred choice of this embodiment, the carrier material in the repelling layer 14 in this embodiment is one or two of a water-blocking tape or a water-blocking yarn for an optical cable, the repellent is preferably capsaicin, the capsaicin can form an emergency response to the stimulation of mice, the mice can avoid being kept away, the capsaicin is added in a weight percentage based on the base material, in order to ensure the rat-proof effect and the control cost of the repelling layer 14, the addition amount of the capsaicin is preferably in a range of 1.2 to 3.0 wt%, although not limited thereto, the repellent can also be other repellents that can generate strong stimulation to the oral cavity of rodents in the prior art, so as to prevent the rodents from continuing to bite the optical cable, the repellent in this embodiment is made of capsaicin, the material on one hand is convenient to obtain, the cost can be effectively controlled, and on the other hand, the repellent is convenient to be attached to the carrier material such as the water-; and the carrier material is preferably a water-blocking tape or a water-blocking yarn with a water-proof and water-blocking function, so that a water seepage accident caused by the fact that the main body outer protective layer 13 is damaged by biting can be avoided, the inner cable core 11 can be effectively protected, the performance of the optical cable can be kept stable even if the main body outer protective layer 13 is damaged, and the service life of the optical cable can be further prolonged.
The main body outer protection layer 13 in this embodiment is preferably a polyethylene outer protection layer, and the main body outer protection layer 13 with the structural design does not increase the weight of the aerial optical cable, is convenient to install and maintain when applied to optical cable line construction or maintenance, and reduces the production, manufacturing and use costs; on the other hand, the combined repellent layer 14 is wrapped in the main body outer protective layer 13, so that environmental pollution caused by volatilization of a repellent in a processing process can be avoided, and the structure and the material are skillfully and reasonably selected and designed; preferably, the thickness of the outer sheath 13 of the main body ranges from 1.4mm to 1.8 mm; the thickness range of the main body outer protection layer 13 is obtained according to experiments, the cost can be effectively controlled under the condition that the internal structural part of the optical cable is completely protected, the weight of the optical cable is not obviously increased, the laying construction design of an optical cable communication line does not need to be adjusted, and the additional protection measure cost and maintenance cost required by line maintenance can be reduced in the long-term use and maintenance process.
With reference to the schematic structural cross-sectional view of the rat-proof optical cable shown in fig. 1, according to the present invention, a method for manufacturing the ordinary overhead rat-proof optical cable with the repellent layer 14 is further provided, which specifically includes the following steps:
the first step is as follows: the optical fiber 113 is colored;
the second step is that: coating a plastic tube outside the plurality of colored optical fibers 113, and filling ointment into the plastic tube to form an optical fiber 113 sleeve 112;
the third step: the optical fibers 113, the sleeve 112 and the filler 114 are twisted around the cable core reinforcement 111 in the left-right direction (SZ) to form the cable core 11;
the fourth step: extruding and molding a composite inner sheath 12 outside the cable core 11, wherein the composite inner sheath 12 is extruded and coated by adopting a longitudinal-coating embossed plastic-coated steel strip and a PE melt in the process flow to form the bonding type optical cable composite inner sheath 12;
the fifth step: coating a water-blocking tape containing capsaicin outside the composite inner protective layer 12 to form a repellent layer 14;
and a sixth step: the outer side of the repellent layer 14 is coated with the main body outer protective layer 13 in an extrusion molding mode, wherein the extrusion molding mode can be one of a tube extruding mode and a squeezing mode;
the seventh step: and (5) manufacturing a finished optical cable.
After the finished optical cable is subjected to trial production of a test sample, after a main body outer protective layer 13 of the test sample is bitten by a mouse, the mouse bites the water blocking tape and is stimulated by capsaicin, the continuous biting is stopped, and the composite inner protective layer 12 is well preserved during the experiment; other indexes of the rat-proof optical cable product trial-manufactured in the embodiment meet the requirements of the industry standard.
In conclusion, the rat-proof optical cable has the performance of preventing the rat animals from biting and breaking the optical cable when used in the construction of the optical cable line in mountain forest areas, and can effectively solve the technical problem that the existing overhead laid optical cable has poor rat animal biting prevention capability, and the structural design of the repellent layer 14 added in the structure of the rat-proof optical cable cancels the traditional mode of processing a sheath containing a repellent through extrusion molding, so that on one hand, the high-temperature volatilization phenomenon of the repellent such as capsaicin can be effectively eliminated, the processing environment is protected, the rat-proof effect is improved, on the other hand, the structural design, the manufacture, the installation and the construction of the product are simpler and more convenient, and the production cost and the maintenance cost can be obviously reduced when the rat; the structural design of the optical cable main body 1 in the rat-proof optical cable can be applied to metal reinforced optical cables and nonmetal reinforced optical cables, the optical cable does not obviously increase the weight due to the structural design, and the construction design of a communication line does not need to be changed when the rat-proof optical cable is applied to optical cable line construction or maintenance, so that the protection measures for preventing rat animals from biting and breaking the optical fiber 113 when the rat-proof optical cable is laid in an overhead manner are simplified, the installation, protection, maintenance and the like of the optical cable are simplified, the production and use cost is reduced, the rat-proof optical cable has good application prospect, and is suitable for popularization.
Example two
The embodiment provides a "8" font self-supporting layer-stranding protection against rodents optical cable of layer 14 is kept away in area, and it is shown to combine fig. 2 that the structure of compound inner sheath 12, main part outer sheath 13 and at compound inner sheath 12 outside parcel one deck of keeping away layer 14 in this embodiment optical cable main part 1 and the material of selecting for use are the same basically with embodiment one, and its difference lies in: the optical cable structure provided by the embodiment further comprises a self-supporting reinforcing part 2 used for the aerial erection of the optical cable, a hanging strip 4 and a reinforcing part outer protective layer 3 coated outside the self-supporting reinforcing part 2, wherein the reinforcing part outer protective layer 3 is connected with the optical cable main body 1 through the hanging strip 4; further, the optical cable main body 1 further comprises a cable core reinforcing member 111 located at the center of the cable core 11, four sleeves 112 and a filler 114 arranged around the cable core reinforcing member 111, and a plurality of optical fibers 113 located in the sleeves 112, wherein the sleeves 112 and the filler 114 are twisted on the cable core reinforcing member 111 according to a certain pitch to form the cable core 11, an armor layer 121 is arranged outside the cable core 11, a polyethylene layer 122 for an optical cable sheath is extruded outside the armor layer 121, the armor layer 121 and the polyethylene layer 122 form a composite inner sheath layer 12, and the thickness of the composite inner sheath layer 12 of the optical cable is 1.0mm to 1.4mm on the premise of ensuring the qualification of an optical cable temperature experiment and a mechanical performance experiment; the repellent layer 14 in this embodiment is formed by using water-blocking yarns for optical cables as carrier materials, selecting capsaicin as a repellent, wherein the addition amount of the capsaicin is preferably 1.2-3.0 wt%, attaching the capsaicin to the water-blocking yarns in a resin bonding mode, wrapping the repellent layer 14 on the composite inner protective layer 12 in the production process of the optical cables, and extruding the main body outer protective layer 13, wherein the main body outer protective layer 13 is used for integrally protecting structural members in the optical cables, and the thickness of the main body outer protective layer is generally 1.4 mm-1.8 mm; this embodiment protection against rodents optical cable can be distinguished into metal strenghthened type and non-metal strenghthened type optical cable from the enhancement form, according to the use scene, the preferred non-metal strenghthened type optical cable of this embodiment, its characterized in that armor 121 is the preferred glass fiber reinforced resin area, high strength glass fiber reinforced resin pole is selected for use to cable core reinforcement 111, the preferred high strength glass fiber reinforced resin pole of material that self-supporting reinforcement 2 chooseed for use, the material of armor 121 preferably is the glass fiber reinforced resin area in compound inner sheath 12, because metal material does not contain in the optical cable product, can use in having strong electromagnetic environment.
With reference to the schematic structural cross-sectional view of the rat-proof optical cable shown in fig. 2, according to the present invention, there is also provided a method for manufacturing the above-mentioned "8" -shaped self-supporting layer-stranded rat-proof optical cable with the repellent layer 14, which specifically includes the following steps:
the first step is as follows: the optical fiber 113 is colored;
the second step is that: coating a plastic tube outside the plurality of colored optical fibers 113, and filling ointment into the plastic tube to form an optical fiber 113 sleeve 112;
the third step: the optical fibers 113, the sleeve 112 and the filler 114 are twisted around the cable core reinforcement 111 in the left-right direction (SZ) to form the cable core 11;
the fourth step: extruding and molding a composite inner sheath layer 12 on the outer side of the cable core 11, wherein the composite inner sheath layer 12 is extruded and coated by a PE melt added outside a glass fiber reinforced resin tape in the process flow to form a bonding type optical cable composite inner sheath layer 12;
the fifth step: coating a water-blocking tape containing capsaicin outside the composite inner protective layer 12 to form a repellent layer 14;
and a sixth step: the optical cable overhead self-supporting reinforcing part 2 is arranged in parallel;
and a sixth step: the outer side of the repellent layer 14 is coated with the main body outer protective layer 13 in an extrusion molding mode, wherein the extrusion molding mode can be one of a tube extruding mode and a squeezing mode; simultaneously extruding and coating the self-supporting reinforcing part 2 and forming the hanging strip 4;
the seventh step: and (5) manufacturing a finished optical cable.
The rat-proof optical cable is simple in manufacturing method and low in cost of finished optical cables, the outer side of the cable core 11 is coated with the composite inner protection layer 12, the outer side of the inner protection layer is coated with the carrier material containing the repellent, then the main body outer protection layer 13 is coated in an extrusion molding mode, the extrusion molding mode can be an extrusion pipe type or an extrusion type, the combination of the repellent and the carrier material can be a compounded finished product, the repellent can also be directly and uniformly coated on the carrier material in a production field, and compared with the conventional general optical cable, the rat-proof optical cable is simple in structure, ingenious and reasonable in design, and production, manufacturing and using costs of the.
EXAMPLE III
The embodiment provides an 8-shaped self-supporting central tube 115 type rat-proof optical cable with a repellent layer 14, as shown in fig. 3, the structure and the selected material of the inner composite sheath 12, the outer main body sheath 13 and the repellent layer 14 wrapped outside the inner composite sheath 12 in the optical cable main body 1 of the embodiment are basically the same as those of the embodiment, and the difference is that: the optical cable structure provided by the embodiment further comprises a self-supporting reinforcing part 2 used for the aerial erection of the optical cable, a hanging strip 4 and a reinforcing part outer protective layer 3 coated outside the self-supporting reinforcing part 2, wherein the reinforcing part outer protective layer 3 is connected with the optical cable main body 1 through the hanging strip 4; further, the optical cable main body 1 further comprises a central tube 115 located in the center of the cable core 11 and a plurality of optical fibers 113 arranged in the central tube 115, the central tube 115 is wrapped on the plurality of optical fibers 113 to form the cable core 11, an armor layer 121 is arranged outside the cable core 11, a polyethylene layer 122 for an optical cable sheath is extruded outside the armor layer 121, the armor layer 121 and the polyethylene layer 122 form a composite inner sheath 12, and the thickness of the composite inner sheath 12 of the optical cable is 1.0mm to 1.4mm on the premise that the optical cable temperature experiment and the mechanical performance experiment are qualified; the repellent layer 14 in this embodiment is formed by using a water-blocking tape for an optical cable as a carrier material, selecting a capsaicin as a repellent, wherein the addition amount of the capsaicin is preferably 1.2-3.0 wt%, attaching the capsaicin to the water-blocking tape in a solution coating manner or a powder bonding manner, wrapping the repellent layer 14 on the composite inner protective layer 12 in the production process of the optical cable, and extruding the main body outer protective layer 13, wherein the main body outer protective layer 13 is used for integrally protecting a structural member in the optical cable, and the thickness range of the main body outer protective layer is usually 1.4 mm-1.8 mm; in the same way, the rat-proof optical cable in the embodiment can be divided into a metal reinforced type optical cable and a nonmetal reinforced type optical cable from a reinforced form, and the embodiment is preferably the nonmetal reinforced type optical cable according to a use scene; the self-supporting reinforcement part 2 is preferably made of high-strength glass fiber reinforced resin rods, the armor layer 121 in the composite inner sheath 12 is preferably made of glass fiber reinforced resin tapes, and the thickness of the armor layer 121 is preferably 0.35mm to 0.55 mm; because the optical cable product does not contain metal materials, the optical cable can be used in an environment with strong electromagnetism.
With reference to the schematic structural cross-sectional view of the rat-proof optical cable in this embodiment shown in fig. 3, according to the present invention, a method for manufacturing the rat-proof optical cable with the self-supporting center tube 115 shaped like the Chinese character '8' and the repellent layer 14 described above is further provided in this embodiment, and specifically includes the following steps:
the first step is as follows: the optical fiber 113 is colored;
the second step is that: coating a plastic tube outside the plurality of colored optical fibers 113, and filling ointment into the plastic tube to form an optical fiber 113 sleeve 112;
the third step: a single sleeve 112 is arranged at the center of the optical cable main body 1;
the fourth step: extruding the composite inner sheath layer 12 outside the sleeve 112, wherein the composite inner sheath layer 12 is extruded and coated by a PE melt outside a glass fiber reinforced resin tape in the process flow to form a bonding type optical cable composite inner sheath layer 12;
the fifth step: coating a water-blocking tape containing capsaicin outside the composite inner protective layer 12 to form a repellent layer 14;
and a sixth step: the optical cable overhead self-supporting reinforcing part 2 is arranged in parallel;
and a sixth step: the outer side of the repellent layer 14 is coated with the main body outer protective layer 13 in an extrusion molding mode, wherein the extrusion molding mode can be one of a tube extruding mode and a squeezing mode; simultaneously extruding and coating the self-supporting reinforcing part 2 and forming the hanging strip 4;
the seventh step: and (5) manufacturing a finished optical cable.
The above lists only three typical optical cable forms, but are not limited to this, and there may be other optical cables with the repellent layer 14 disposed under the main body outer sheath 13, where the key structural parameters of the optical cable may be specifically selected according to the use scenario.
In conclusion, the rat-proof optical cable provided by the invention is provided with the composite inner protection layer 12 with complete protection performance outside the cable core 11, the repellent layer 14 is arranged between the composite inner protection layer 12 and the main body outer protection layer 13 to prevent rats from biting the optical cable, so that the technical problem that the existing aerial laying optical cable has poor rat-proof capability for preventing rats can be effectively solved, and the polyethylene layer 122 for wrapping the optical cable sheath is extruded outside the armor layer 121 to form the composite inner protection layer 12, so that the cable core 11 of the optical cable has complete protection performance, and even after the main body outer protection layer 13 is damaged by rats, the transmission performance of the optical cable can be ensured to be stable and reliable; the repellent in the rat-proof optical cable can be adhered to the carrier material in an adhering or coating mode to form the repellent layer 14 combining the repellent and the carrier material, and the repellent and the carrier material are combined in a cold coating or solvent coating mode, so that the structural performance of the repellent layer 14 is stable, and the stable effect of preventing rat animals from biting the optical cable can be maintained even under the condition that the outer protective layer of the optical cable main body 1 is damaged; compared with the conventional optical cable, the rat-proof optical cable has the advantages that the weight of the product is not obviously increased, the laying construction design of the optical cable communication line is not required to be adjusted, the additional protection measure cost and the maintenance cost required by line maintenance can be reduced in the long-term use and maintenance process, the rat-proof optical cable is convenient to construct and maintain as compared with the conventional universal optical cable, the maintenance interval in the service cycle of the optical cable is longer, the installation and maintenance difficulty of the optical cable line is reduced, the labor is reduced, and the cost is reduced.
The present specification and figures are to be regarded as illustrative rather than restrictive, and it is intended that all such alterations and modifications that fall within the true spirit and scope of the invention, and that all such modifications and variations are included within the scope of the invention as determined by the appended claims without the use of inventive faculty.
Claims (10)
1. A ratproof optical cable is characterized in that: including the optical cable main part, the optical cable main part includes the cable core and protects layer and main part outer jacket in the cable core outside from interior to exterior cladding compound protect and be equipped with between layer and the main part outer jacket and keep away the layer, keep away the layer cladding in compound interior sheath outside, main part outer jacket extrusion molding cladding is in keeping away the layer outside, it includes carrier material and repellent for the optical cable to keep away the layer, the repellent is attached to on carrier material through bonding or coated mode in order to form the repellent layer that repellent and carrier material combined together.
2. The ratproof optical cable of claim 1, wherein: the carrier material is one or two of a water-blocking tape or a water-blocking yarn for the optical cable; the repellent is capsaicin.
3. The ratproof optical cable of claim 1, wherein: the composite inner sheath comprises an armor layer and a polyethylene layer, the armor layer is coated outside the cable core, and the polyethylene layer is extruded outside the armor layer to coat the optical cable sheath so as to form the composite inner sheath.
4. The ratproof optical cable of claim 3, wherein: the armor layer is at least one of embossed plastic-coated steel belt, plastic-coated aluminum belt or glass fiber reinforced resin belt on the outer side of the cable core.
5. The ratproof optical cable of claim 1, wherein: the main body outer protective layer is a polyethylene outer protective layer; and the thickness of the outer protective layer of the main body ranges from 1.4mm to 1.8 mm.
6. The ratproof optical cable of claim 1, wherein: the optical cable main body further comprises a cable core reinforcing member positioned in the center of the cable core, a plurality of sleeves and filling members arranged around the cable core reinforcing member, and a plurality of optical fibers positioned in the sleeves, wherein the sleeves and the filling members are twisted on the cable core reinforcing member according to a certain pitch to form the cable core.
7. The ratproof optical cable of claim 1, wherein: the optical cable also comprises a self-supporting reinforcing part used for the optical cable to be overhead, a hanging strip and a reinforcing part outer protective layer coated on the outer side of the self-supporting reinforcing part, wherein the reinforcing part outer protective layer is connected with the optical cable main body through the hanging strip.
8. The ratproof optical cable of claim 7, wherein: the optical cable main body further comprises a cable core reinforcing member positioned in the center of the cable core, a plurality of sleeves and filling members arranged around the cable core reinforcing member, and a plurality of optical fibers positioned in the sleeves, wherein the sleeves and the filling members are twisted on the cable core reinforcing member according to a certain pitch to form the cable core.
9. The ratproof optical cable of claim 7, wherein: the optical cable main body further comprises a central tube positioned in the center of the cable core and a plurality of optical fibers arranged in the central tube, and the central tube is coated on the optical fibers to form the cable core.
10. A method for manufacturing a rat-proof optical cable is characterized in that: the method comprises the following steps:
the first step is as follows: coloring the optical fiber;
the second step is that: coating a plastic tube outside the plurality of colored optical fibers, and filling factice in the plastic tube to form an optical fiber sleeve;
the third step: the optical fiber sleeve and the filling member are twisted around the cable core reinforcing member in the left-right direction to form a cable core;
the fourth step: extruding and compounding an inner protection layer on the outer side of the cable core;
the fifth step: coating a carrier material containing a repellent outside the composite inner protective layer to form a repellent layer;
and a sixth step: extruding and coating the outer side of the repellent layer with a main body outer protective layer;
the seventh step: and (5) manufacturing a finished optical cable.
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| CN202110317722.XA CN112904514A (en) | 2021-03-25 | 2021-03-25 | Rat-proof optical cable and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148524A (en) * | 2023-10-27 | 2023-12-01 | 江苏中天科技股份有限公司 | Thermal-stimulation protection optical cable and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093457A (en) * | 2015-09-18 | 2015-11-25 | 长飞光纤光缆股份有限公司 | Anti-rodent and anti-pecking layer stranding optical cable and manufacturing method thereof |
| CN105116506A (en) * | 2015-09-18 | 2015-12-02 | 长飞光纤光缆股份有限公司 | Central tubular optical cable capable of preventing biting and pecking and manufacture method thereof |
| CN108614340A (en) * | 2018-07-19 | 2018-10-02 | 北京亨通斯博通讯科技有限公司 | LA light armor is anti-biological anti-to denude cable |
| CN214278512U (en) * | 2021-03-25 | 2021-09-24 | 成都亨通光通信有限公司 | Rodent-resistant fire-resistant optical cable |
| CN214375456U (en) * | 2021-03-25 | 2021-10-08 | 成都亨通光通信有限公司 | Rat-proof optical cable |
-
2021
- 2021-03-25 CN CN202110317722.XA patent/CN112904514A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093457A (en) * | 2015-09-18 | 2015-11-25 | 长飞光纤光缆股份有限公司 | Anti-rodent and anti-pecking layer stranding optical cable and manufacturing method thereof |
| CN105116506A (en) * | 2015-09-18 | 2015-12-02 | 长飞光纤光缆股份有限公司 | Central tubular optical cable capable of preventing biting and pecking and manufacture method thereof |
| CN108614340A (en) * | 2018-07-19 | 2018-10-02 | 北京亨通斯博通讯科技有限公司 | LA light armor is anti-biological anti-to denude cable |
| CN214278512U (en) * | 2021-03-25 | 2021-09-24 | 成都亨通光通信有限公司 | Rodent-resistant fire-resistant optical cable |
| CN214375456U (en) * | 2021-03-25 | 2021-10-08 | 成都亨通光通信有限公司 | Rat-proof optical cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148524A (en) * | 2023-10-27 | 2023-12-01 | 江苏中天科技股份有限公司 | Thermal-stimulation protection optical cable and preparation method thereof |
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