CN110850544B - Flat indoor and outdoor optical cable and manufacturing method thereof - Google Patents
Flat indoor and outdoor optical cable and manufacturing method thereof Download PDFInfo
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- CN110850544B CN110850544B CN201911382990.9A CN201911382990A CN110850544B CN 110850544 B CN110850544 B CN 110850544B CN 201911382990 A CN201911382990 A CN 201911382990A CN 110850544 B CN110850544 B CN 110850544B
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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
- G02B6/4432—Protective covering with fibre reinforcements
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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
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
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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
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention relates to the technical field of optical cables, and particularly discloses a flat indoor and outdoor optical cable and a manufacturing method thereof, wherein the flat indoor and outdoor optical cable comprises an optical cable core, wherein glass fiber reinforced plastic reinforcements are symmetrically arranged on two sides of the optical cable core, are flat and are arranged in parallel; glass fiber reinforced round rods are arranged on the other two sides of the optical cable core, and outer sheaths are coated outside the optical cable core, the glass fiber reinforced plastic reinforcing piece and the glass fiber reinforced round rods; the optical cable comprises an optical cable core, and is characterized in that a metal mesh layer is sleeved outside the optical cable core, a tearing rope is arranged in the optical cable core, the metal mesh layer is arranged by wrapping the optical cable core by the metal mesh layer, and the head end and the tail end of the metal mesh layer are overlapped together. The invention has the advantages that the glass fiber reinforced plastic reinforcement is used as the first protective layer, and the metal net layer is used as the second protective layer to play a good rat-proof effect.
Description
Technical Field
The invention relates to the technical field of optical cables, in particular to a flat indoor and outdoor optical cable and a manufacturing method thereof.
Background
Rats widely live in various regions of the world as rodents with strong fecundity and vitality, and have teeth developed and growing continuously, so that the rats have the habit of biting objects to keep the sharp teeth, and the rats are often bitten by plastic due to the unique smell of the plastic. The optical cable manufacturers change the design of the rat-proof optical cable from the structure or the material, so that the rat-proof optical cable has the rat-proof function.
Two methods that are currently more common are the addition of spicy agents to the jacketing material and the use of multiple jacketing layers. Experiments at home and abroad prove that the mouse is sensitive to spicy substances and is known as an effective rodenticide. The rat proofing method by adding the pungent agent is characterized in that the pungent agent is added in the production process of kneading and granulating the optical cable material, and the rat proofing method can generate pungent smell during the production of the extruded sheath, so that the body health of workshop production personnel is influenced to a certain extent, protective gloves are required to be arranged in the construction process, the situation that hands directly contact the optical cable to cause burning sensation is prevented, and the rat proofing method is contrary to the human-oriented and healthy production idea in the current society; and the pungent agent migrates and volatilizes from the sheathing material in a long-term environment, so that the rat-proof effect and the effective time of the optical cable sheathing material containing the pungent agent are difficult to ensure. And use multilayer armor, although can effectively carry out protection against rodents, and protection against rodents is effectual, just more difficult when separating the optical fiber unit in the optical cable, need use special instrument to peel off the metal armor, inefficiency and inconvenient.
Disclosure of Invention
The invention aims to overcome the defects of inconvenient operation and low effect of a metal armor layer in stripping an optical fiber unit in the prior art, and provides a flat indoor and outdoor optical cable and a manufacturing method.
The purpose of the invention is realized by the following technical scheme: a flat indoor and outdoor optical cable comprises an optical cable core, wherein glass fiber reinforced plastic reinforcements are symmetrically arranged on two sides of the optical cable core, are flat and are arranged in parallel;
glass fiber reinforced round rods are arranged on the other two sides of the optical cable core, and outer sheaths are coated outside the optical cable core, the glass fiber reinforced plastic reinforcing piece and the glass fiber reinforced round rods;
the optical cable comprises an optical cable core, and is characterized in that a metal mesh layer is sleeved outside the optical cable core, a tearing rope is arranged in the optical cable core, the metal mesh layer is arranged by wrapping the optical cable core by the metal mesh layer, and the head end and the tail end of the metal mesh layer are overlapped together.
Specifically, the width of the glass fiber reinforced plastic reinforcing piece is larger than or equal to the diameter of the optical cable core.
Specifically, the optical cable core include and strengthen core and a plurality of optical fiber unit, optical fiber unit include the sleeve pipe and set up many optic fibre in the sleeve pipe, many optic fibre between pack and have the filler, many optical fiber unit around strengthening the core setting, and outside cladding has loose covering layer.
Specifically, the tearing rope is arranged in the loose sleeve layer.
Specifically, the tearing rope is arranged on one side close to the overlapping position of the head end and the tail end of the metal mesh layer.
Specifically, the outer sheath is flat.
Specifically, the filler is water-blocking fiber paste.
A method for manufacturing a flat outdoor ratproof optical cable comprises the following steps:
firstly, manufacturing a sleeve coated with a plurality of optical fibers; drawing a polybutylene terephthalate tube into a sleeve by an extrusion molding machine, filling water-blocking fiber paste into the sleeve and putting a plurality of optical fibers, and finishing the preparation of an optical fiber unit; when the water-blocking fiber paste is filled, air bubbles in the water-blocking fiber paste are removed;
then manufacturing an optical cable core; placing the reinforced core in the middle of a cabling machine, performing forward and reverse interactive stranding on the optical fiber unit and the reinforced core through the cabling machine, and simultaneously extruding and wrapping a layer of low-smoke halogen-free loose sleeve layer on the stranded optical fiber unit, the reinforced core and the tearing rope through a plastic extruding machine, wherein the tearing rope is arranged at the position, attached to the loose sleeve layer, on the outer side of the optical fiber unit;
coating a metal mesh layer; the optical cable core longitudinally wraps the metal mesh layer through the longitudinal wrapping die, so that the metal mesh layer is wrapped outside the optical cable core, when the metal mesh layer is wrapped, the head end and the tail end of the metal mesh layer are overlapped together, and the overlapped position is ensured to be close to the tearing rope;
coating the outer sheath; and positioning the optical cable core, the glass fiber reinforced plastic reinforcing part and the glass fiber reinforced round rod through a guide die, conveying the optical cable core, the glass fiber reinforced plastic reinforcing part and the glass fiber reinforced round rod through a conveying belt, and forming an outer sheath through an extruding machine.
The invention has the following advantages:
1. set up the metal mesh layer in the outside of optical cable core, can play fine protection against rodents effect, and the head end and the tail end of metal mesh layer are that the mode of coincide is connected, rather than fixed connection, have set up after tearing the rope like this when using, conveniently tear the outside that the rope breaks away from metal mesh layer's inside, facilitate the use, peel off effectually, improved the efficiency of peeling off, and do not influence the effect of protection against rodents.
2. The glass fiber reinforced plastic reinforcements are arranged on two sides of the optical cable core, the nonmetal glass fiber reinforced plastic reinforcements are high in strength and hardness and corrosion resistant, and the mechanical properties of the optical cable such as tensile, compression and impact resistance can be enhanced; the glass fiber reinforced plastic reinforcement contains glass fiber, the glass fiber can hurt the oral cavity of an animal when the bird pecks the mouse and damage the animal, the purpose of first layer protection is achieved, the metal mesh layer is used as second layer protection, and double protection can guarantee that the optical cable cannot be damaged by the animal such as the mouse outdoors.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an optical cable core and an outer metal mesh layer according to the present invention;
FIG. 3 is a schematic structural view of an optical fiber unit according to the present invention;
in the figure: 1-outer sheath, 2-glass fiber reinforced round rod, 3-optical cable core, 4-glass fiber reinforced plastic reinforcer, 5-reinforced core, 6-optical fiber unit, 7-tearing rope, 8-loose sleeve layer, 9-metal net layer, 10-optical fiber, 11-filler and 12-sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the 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.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1 to 3, a flat indoor and outdoor optical cable comprises an optical cable core 3, wherein glass fiber reinforced plastic reinforcements 4 are symmetrically arranged on two sides of the optical cable core 3, and the glass fiber reinforced plastic reinforcements 4 are flat and arranged in parallel;
the other two sides of the optical cable core 3 are provided with glass fiber reinforced round rods 2, and the optical cable core 3, the glass fiber reinforced plastic reinforcers 4 and the glass fiber reinforced round rods 2 are externally coated with outer sheaths 1;
the optical cable comprises an optical cable core 3 and is characterized in that a metal mesh layer 9 is sleeved outside the optical cable core 3, a tearing rope 7 is arranged in the optical cable core 3, the metal mesh layer 9 is wrapped around the optical cable core 3 by a metal mesh, and the head end and the tail end of the metal mesh layer 9 are overlapped together. The rat-proof mode in the prior art is to arrange a metal armor layer on the optical cable, which is the most effective rat-proof mode, but the problem brought by the structure is that the metal armor layer is difficult to peel off when the optical cable is peeled off, and the peeling can be destroyed only by using special tool pliers because the structure of the metal armor layer is firm; the invention carries on the new design to the structure of the optical cable, set up a metal network layer 9 outside the optical cable core 3, the metal network layer 9 is weaved for the galvanized iron wire, the existing metal armor layer is the complete round structure, it wraps the optical cable completely inside, such structural strength is big, and the metal network layer 9 of the invention is to wrap the outside of the optical cable core 3 through the mould by a planar metal network, its head end and tail end are not fixed, but superpose, there is a tearing rope 7 in the optical cable core 3, while using, pulling the tearing rope 7 can destroy the loose sleeve layer 8 of the optical cable core 3, and the metal network layer 9 set up outside the optical cable core 3 because its head end and tail end are superpose, the tearing rope 7 can break away from the metal network layer 9 to the outside of the metal network layer 9 from the superpose of head end and tail end of the metal network layer 9 while tearing, thus finally tear the oversheath 1, because the head end and the tail end of the metal mesh layer 9 are not fixed and the head end and the tail end of the overlapping part of the head end and the tail end of the metal mesh layer 9 are separated under the action of the tearing rope 7, the optical fiber units 6 are better separated because the overlapping part of the head end and the tail end of the metal mesh layer 9 is not fixedly connected but is tightly attached during manufacturing, and because the overlapping part of the head end and the tail end of the metal mesh layer 9 is separated under the action of the tearing rope 7, the metal mesh layer 9 is convenient to separate; the metal mesh layer 9 has strong rat-proof performance as a metal material; in the embodiment, the metal mesh layer 9 is adopted, and as another option, a steel belt layer can be selected during manufacturing, so that the structural strength is higher; the embodiment is based on the use of a metal mesh layer 9; the glass fiber reinforced plastic reinforcers 4 are arranged on the two sides of the optical cable core 3, and the nonmetal glass fiber reinforced plastic reinforcers 4 are high in strength and hardness and corrosion resistant, so that the mechanical properties of the optical cable, such as tensile strength, compression resistance, impact resistance and the like, can be enhanced; the glass fiber reinforced plastic reinforcer 4 contains glass fiber which can hurt the oral cavity of an animal when the bird pecks the mouse and cause the animal to abandon the damage, the glass fiber reinforced plastic reinforcer 4 is flat and is arranged at two sides of the optical cable core 3, because the outer sheath 1 is also flat, two ends of the outer sheath 1 are circular arc-shaped, the other two ends are planes, the glass fiber reinforced plastic reinforcer 4 is arranged at two sides of the outer sheath 1 which is a plane, because the thickness of the outer sheath 1 at the two sides is thinner, the mouse bites through the position most probably, the position is reinforced in a targeted way, so the glass fiber reinforced plastic reinforcer 4 is arranged at two sides of the optical cable core 3 to protect the optical cable core and prevent the mouse from directly exposing the optical cable core after biting the outer sheath 1, the purpose of first layer protection is achieved, and the metal net layer 9 is used as a second layer, the double protection can ensure that the optical cable cannot be damaged by animals such as mice and the like outdoors.
Furthermore, the width of the glass fiber reinforced plastic reinforcing part 4 is larger than or equal to the diameter of the optical cable core 3, and the width of the glass fiber reinforced plastic reinforcing part 4 is larger than the diameter of the optical cable core 3, so that the glass fiber reinforced plastic reinforcing part 4 can completely protect the optical cable core 3.
Further, the optical cable core 3 includes a reinforced core 5 and a plurality of optical fiber units 6, the optical fiber units 6 include a sleeve 12 and a plurality of optical fibers 10 disposed in the sleeve 12, a filler 11 is filled between the plurality of optical fibers 10, the plurality of optical fiber units 6 are disposed around the reinforced core 5, and the outer portion of the optical cable core is covered with a loose sheath layer 8.
Further, the tearing rope 7 is arranged on one side close to the overlapping position of the head end and the tail end of the metal mesh layer 9.
Further, the filler 11 is water-blocking fiber paste.
Alternatively, the metal mesh layer 9 may be arranged such that the head end and the tail end are not overlapped, and specifically, the head end and the tail end of the metal mesh are both bent backward in the opposite directions, and then the head end and the tail end are in contact with each other, so that the arrangement is better than that in which the optical fiber units 6 are sorted by using the tear string 7 from the inside of the metal mesh layer 9 to the outside of the metal mesh layer 9 from the positions of the head end and the tail end of the metal mesh layer 9.
A method for manufacturing a flat outdoor ratproof optical cable comprises the following steps:
firstly, manufacturing a sleeve 12 coated with a plurality of optical fibers 10; drawing a polybutylene terephthalate tube by using an extrusion molding machine to form a sleeve 12, filling water-blocking fiber paste into the sleeve 12, and putting a plurality of optical fibers 10 to complete the preparation of the optical fiber unit 6; when the water-blocking fiber paste is filled, air bubbles in the water-blocking fiber paste are removed;
then manufacturing an optical cable core 3; placing the reinforced core 5 in the middle of a cabling machine, performing forward and reverse interactive stranding on the optical fiber unit 6 and the reinforced core 5 through the cabling machine, and extruding the stranded optical fiber unit 6, the reinforced core 5 and the tearing rope 7 by a plastic extruding machine to form a low smoke zero halogen loose sleeve layer 8, wherein the tearing rope 7 is arranged at the position where the outer side of the optical fiber unit 6 is attached to the loose sleeve layer 8;
a metal mesh layer 9; the optical cable core 3 longitudinally wraps the metal mesh layer 9 through a longitudinal wrapping mold, so that the metal mesh layer 9 wraps the outer part of the optical cable core 3, when the metal mesh layer 9 is wrapped, the head end and the tail end of the metal mesh layer 9 are overlapped, and the overlapped position is close to the tearing rope 7;
coating the outer sheath 1; positioning the optical cable core 3, the glass fiber reinforced plastic reinforcer 4 and the glass fiber reinforced round rod 2 through a guide die, conveying by a conveyor belt, and forming the outer sheath 1 by an extruding machine.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (5)
1. A flat indoor and outdoor optical cable is characterized in that: the optical cable comprises an optical cable core (3), wherein glass fiber reinforced plastic reinforcements (4) are symmetrically arranged on two sides of the optical cable core (3), and the glass fiber reinforced plastic reinforcements (4) are flat and arranged in parallel;
the other two sides of the optical cable core (3) are provided with glass fiber reinforced round rods (2), and the outer parts of the optical cable core (3), the glass fiber reinforced plastic reinforcing piece (4) and the glass fiber reinforced round rods (2) are coated with an outer sheath (1); the optical cable core (3) comprises a reinforced core (5) and a plurality of optical fiber units (6), each optical fiber unit (6) comprises a sleeve (12) and a plurality of optical fibers (10) arranged in the sleeve (12), fillers (11) are filled among the optical fibers (10), the optical fiber units (6) are arranged around the reinforced core (5), and the outer parts of the optical fiber units are coated with loose sleeve layers (8);
the optical cable is characterized in that a metal mesh layer (9) is sleeved outside the optical cable core (3), a tearing rope (7) is arranged in the optical cable core (3), the tearing rope (7) is arranged in the loose sleeve layer (8), the metal mesh layer (9) is arranged by being wrapped around the optical cable core (3) through a metal mesh, the head end and the tail end of the metal mesh layer (9) are overlapped together, and the tearing rope (7) is arranged on one side of the overlapping position of the head end and the tail end of the metal mesh layer (9).
2. The flat type indoor and outdoor optical cable according to claim 1, wherein: the width of the glass fiber reinforced plastic reinforcer (4) is more than or equal to the diameter of the optical cable core (3).
3. The flat type indoor and outdoor optical cable according to claim 1, wherein: the outer sheath (1) is flat.
4. The flat type indoor and outdoor optical cable according to claim 1, wherein: the filler (11) is water-blocking fiber paste.
5. A method for manufacturing the flat outdoor ratproof optical cable of any one of claims 1 to 4, wherein the method comprises the following steps: the method comprises the following steps:
firstly, manufacturing a sleeve (12) coated with a plurality of optical fibers (10); drawing a pipe of the poly (tert-butyl terephthalate) by an extruder to form a sleeve (12), filling water-blocking fiber paste into the sleeve (12) and putting a plurality of optical fibers (10) to complete the preparation of the optical fiber unit (6); when the water-blocking fiber paste is filled, air bubbles in the water-blocking fiber paste are removed;
then manufacturing an optical cable core (3); placing the reinforced core (5) in the middle of a cabling machine, performing forward and reverse interactive stranding on the optical fiber unit (6) and the reinforced core (5) through the cabling machine, and simultaneously extruding the stranded optical fiber unit (6), the reinforced core (5) and the tearing rope (7) by using an extruding machine to wrap a low-smoke halogen-free loose sleeve layer (8), wherein the tearing rope (7) is arranged at the position where the outer side of the optical fiber unit (6) is attached to the loose sleeve layer (8);
a metal mesh layer (9); the optical cable core (3) is longitudinally wrapped with the metal mesh layer (9) through a longitudinal wrapping mould, so that the metal mesh layer (9) is wrapped outside the optical cable core (3), wherein the head end and the tail end of the metal mesh layer (9) are overlapped together when the metal mesh layer (9) is wrapped, and the overlapped position is close to the tearing rope (7);
a coating outer sheath (1); positioning the optical cable core (3), the glass fiber reinforced plastic reinforcer (4) and the glass fiber reinforced round rod (2) through a guide die, conveying by a conveyor belt, and forming the outer sheath (1) by an extruding machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911382990.9A CN110850544B (en) | 2019-12-27 | 2019-12-27 | Flat indoor and outdoor optical cable and manufacturing method thereof |
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| CN201911382990.9A CN110850544B (en) | 2019-12-27 | 2019-12-27 | Flat indoor and outdoor optical cable and manufacturing method thereof |
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| CN110850544A CN110850544A (en) | 2020-02-28 |
| CN110850544B true CN110850544B (en) | 2020-11-27 |
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| CN113866922A (en) * | 2021-10-13 | 2021-12-31 | 江苏亨通光电股份有限公司 | Outdoor optical cable with large-core-number micro-beam tube and process manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103345029B (en) * | 2013-07-10 | 2015-07-22 | 江苏中天科技股份有限公司 | Nonmetal anti-freezing anti-squeezing lead-in optical cable and manufacturing method thereof |
| CN105739036A (en) * | 2014-01-26 | 2016-07-06 | 王和根 | Overhead optical cable |
| CN203849476U (en) * | 2014-05-30 | 2014-09-24 | 深圳市雅信通光缆有限公司 | Armored butterfly leading-in optical cable with free branches |
| CN204439899U (en) * | 2015-02-02 | 2015-07-01 | 西安西古光通信有限公司 | The little core number layer-stranding cable of a kind of FTTH |
| CN204631310U (en) * | 2015-04-17 | 2015-09-09 | 江苏亨通光电股份有限公司 | A kind of high rigidity pipe core heavier-duty rodent-resistant cable |
| CN204631315U (en) * | 2015-04-21 | 2015-09-09 | 江苏亨通光电股份有限公司 | There is the reinforced light-duty optical fiber cable of anti-rat |
| CN105353486A (en) * | 2015-12-22 | 2016-02-24 | 长飞光纤光缆股份有限公司 | Indoor-outdoor rodent-resistant cable and manufacturing method thereof |
| CN106125223A (en) * | 2016-08-09 | 2016-11-16 | 万永秀 | There is the plastic optical fiber cable of color-bar |
| CN207249212U (en) * | 2017-09-28 | 2018-04-17 | 江苏永鼎股份有限公司 | A kind of anti-lightning strike optical cable of small-sized nonmetallic anti-bird of introducing protection against rodents |
| CN108152903A (en) * | 2018-01-16 | 2018-06-12 | 山东太平洋光纤光缆有限公司 | A kind of access the net miniature branched cable of self-supporting half dry type and its manufacturing method |
| CN208459653U (en) * | 2018-07-23 | 2019-02-01 | 深圳市联讯实业有限公司 | A kind of outdoor resistance to compression and anti-bite optical cable |
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