CN116859534A - Optical cable joint setting method and optical cable connecting box - Google Patents
Optical cable joint setting method and optical cable connecting box Download PDFInfo
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- CN116859534A CN116859534A CN202310817369.0A CN202310817369A CN116859534A CN 116859534 A CN116859534 A CN 116859534A CN 202310817369 A CN202310817369 A CN 202310817369A CN 116859534 A CN116859534 A CN 116859534A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000013307 optical fiber Substances 0.000 claims abstract description 159
- 238000005452 bending Methods 0.000 claims abstract description 108
- 239000000835 fiber Substances 0.000 claims abstract description 84
- 238000002844 melting Methods 0.000 claims abstract description 44
- 230000008018 melting Effects 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000011241 protective layer Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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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
-
- 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
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
-
- 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
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3835—Means for centering or aligning the light guide within the ferrule using discs, bushings or the like
-
- 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
-
- 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
- G02B6/4439—Auxiliary devices
-
- 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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
-
- 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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4453—Cassettes
- G02B6/4454—Cassettes with splices
-
- 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
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an optical cable joint setting method, which comprises the following steps: arranging the connected optical fibers in a fiber melting disc; maintaining the relative positions of the outer sheath and the fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc; setting the bending control radius of the optical fiber redundant section, wherein the bending control radius is larger than or equal to the minimum bending radius of the optical fiber, and the bending radius of the optical fiber redundant section is larger than the bending control radius, so that the optical fiber redundant section has transverse deformation. It can reduce the probability of failure at the cable joint. The utility model provides an optical cable junction box, is equipped with optical cable oversheath fixed part, fiber melting dish in it and is used for setting up the redundant cable winding way of optical fiber recovery, the inside wall of cable winding way is used for setting up the crookedness control radius of optical fiber, be equipped with the redundant transverse deformation space of optical fiber recovery in the cable winding way. When the optical fiber cable is used, the optical fiber is loosely arranged in the cable bend, so that the probability of faults at the optical cable joint can be reduced.
Description
Technical Field
The invention relates to the technical field of optical cable joint arrangement, in particular to an optical cable joint arrangement method and an optical cable connection box.
Background
Limited by factors such as cable production, shipping, installation, etc., cable lengths are limited, typically shorter than the length of the cable lines. Generally, at the junction of two optical cables, an optical cable closure is used to secure the optical fiber splicing section. After the optical cable line runs for a period of time, faults such as increase of additional attenuation of optical fibers in the optical cable joint box, fiber breakage in the optical cable joint box and the like can occur. The number of line faults due to fiber optic problems in the cable closure is statistically over 70% of the total number of faults.
Disclosure of Invention
The inventor finds that one of the reasons for the increased additional attenuation and fiber breakage of the optical fibers in the optical cable joint box is caused by the retraction of the optical fibers. The optical fiber is retracted to reduce the bending radius of the optical fiber, so that bending loss is caused, and the optical fiber is broken when serious, and communication is interrupted.
The outdoor optical cable generally adopts a loose structure, a loose sleeve optical unit provides a primary fiber excess length, an optical unit is twisted to provide a secondary fiber excess length, and then an integrated sheath (such as a steel wire, a steel belt or an aluminum belt and the like) according to environmental requirements is covered outside the optical cable. The primary excess length and the secondary excess length together form the "overall excess length" of the optical fiber, which is "stored" in the cable in the bent state of the optical fiber. When in use, the cable joint box is generally fixedly connected with the outer sheath of the optical cable and is provided with an optical cable reel. Because the optical cable is of a multi-layer structure, the extension or retraction ratio of each part is different under the effect of thermal expansion and contraction. Taking an optical cable mainly comprising an optical fiber arranged in a loose tube, an inner protective layer and an outer protective layer as an example, the inner protective layer is tightly connected with the outer protective layer, a movable gap exists between the inner protective layer and the loose tube, a movable gap exists between the loose tube and the optical fiber, the inner protective layer and the outer protective layer are elongated when the optical cable (especially the optical cable arranged in an overhead manner) is heated (the flexibility of the optical cable causes the elongation of the inner protective layer and the outer protective layer to be unrestricted), the loose tube is relatively retracted, and the optical fiber is retracted, which is one of reasons for reducing the bending radius of the optical fiber. In addition, as the length of the jacket increases in use, the stress accumulated during cabling is released over time and increases in length, which also causes the loose tube to behave as a relative retraction, thereby causing fiber retraction, which is two of the reasons for the reduced bend radius of the fiber.
Because the optical cable joint box has small space, the loose tube is peeled off and short, so that the optical fiber disc is left small, and the optical fiber retraction effect is obvious. At the ODF and the optical fiber junction box, the loose tube is stripped and elongated, and the optical fiber retraction generally does not cause the increase of the additional attenuation of the optical fiber and the fiber breakage of the optical fiber.
The invention aims to provide an optical cable joint setting method and an optical cable connection box so as to reduce the probability of faults of the optical cable joint.
The technical scheme of the invention is as follows:
a method of setting an optical cable joint comprising the steps of:
s11, arranging the connected optical fibers in a fiber melting disc;
s12, maintaining the relative positions of an outer sheath and a fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc;
s13, setting the bending control radius of the optical fiber redundant section, wherein the bending control radius is larger than or equal to the minimum bending radius of the optical fiber, and the bending radius of the optical fiber redundant section is larger than the bending control radius, so that the optical fiber redundant section has transverse deformation.
Preferably, in step S13, the redundant segment of the optical fiber is loosely wound on the minimum bending control portion, and a minimum bending radius of the optical fiber wound by the minimum bending control portion is attached to the minimum bending control portion.
Further preferably, in step S13, the optical fiber redundant segment is loosely wound around the minimum bending control part by a half turn.
Further preferably, the minimum curvature control portion is annular.
Further preferably, at the end of the optical cable connector, a loose tube of the optical cable protrudes from an outer sheath of the optical cable, so that when the redundant section of the optical fiber is tightly wound on the minimum bending control part, the loose tube can separate the optical fiber from the minimum bending control part.
Further preferably, the connection method of the optical cable includes the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner protective layer and the loose tube with proper lengths to make the loose tube of the optical cable be the original loose tube, sleeving the soft loose tube on the optical fiber, and fixedly connecting the soft loose tube with the original loose tube;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected;
in step S13, a first curvature control portion and a second curvature control portion are respectively disposed on two sides of the fiber melting disc, an optical fiber with a soft loose tube on one side of the optical fiber connection portion is loosely wound on the first curvature control portion, and an optical fiber with a soft loose tube on the other side of the optical fiber connection portion is loosely wound on the second curvature control portion.
Further preferably, the connection method of the optical cable includes the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner sheath and the loose tube with proper lengths;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected;
in step S13, a first bending control part and a second bending control part are respectively disposed at two sides of the fiber melting disc, the optical fiber with the loose tube at one side of the optical fiber connection part is loosely wound on the first bending control part, and the optical fiber with the loose tube at the other side of the optical fiber connection part is loosely wound on the second bending control part.
Still further preferably, the fiber melting plate, the first bending control part and the second bending control part are fixed in the optical cable junction box, and in step S12, the outer sheath is fixed at the threading opening of the optical cable junction box.
In step S12, the outer sheath is fixed at the threading opening of the optical cable junction box;
the utility model provides an optical cable junction box, is equipped with optical cable oversheath fixed part and fiber melting dish in it, still is equipped with in it and is used for setting up the redundant cable winding way of optical fiber recovery, the inside wall of cable winding way is used for setting up the crookedness control radius of optical fiber, be equipped with the redundant lateral deformation space of optical fiber recovery in the cable winding way.
Preferably, the cable bend is arranged on an optical fiber disc, and the optical fiber disc is fixed in the optical cable connection box; or the cable bend is arranged on the fiber melting disc; alternatively, the cable bend is secured within the cable junction box.
The beneficial effects of the invention are as follows:
1. according to the method for arranging the optical cable joint, the optical fiber redundant section is arranged between the fiber melting disc and the fixed point of the optical cable outer sheath, and in the step S13, the bending radius of the optical fiber redundant section is larger than the bending control radius, so that when the optical fiber or the loose sheath is retracted, before the bending radius of the optical fiber redundant section is equal to the bending control radius, the optical fiber or the loose sheath can provide deformation through transverse deformation when being pulled, the longitudinal tensile force of the optical fiber or the loose sheath cannot be conducted to an optical fiber connecting part, and because the bending control radius is further arranged in the step S13, the transverse deformation of the optical fiber cannot significantly influence the optical signal transmission quality in the optical fiber, and the probability of faults at the optical cable joint is reduced.
2. In the method for setting an optical cable joint, in step S13, the redundant section of the optical fiber is loosely wound on the minimum bending control part, and the minimum bending radius of the optical fiber wound by the minimum bending control part is attached to the minimum bending control part. By loosely winding the redundant segment of the optical fiber on the minimum curvature control portion and setting the curvature control radius of the minimum curvature control portion, step S13 can be realized without human intervention.
3. According to the optical cable joint setting method, the optical fiber redundant section bypasses the minimum bending control part for half a circle, one circle or more circles. If the redundant section of the optical fiber is loosely wound around the minimum bending control part for half a circle, the optical fiber is simple in arrangement mode and is not easy to wind and tie. If the fiber redundancy segment bypasses the minimum bend control portion one or more turns, this may allow for a multiple expansion of the single turn redundancy length, thereby providing more margin for retraction.
4. According to the method for setting the optical cable joint, the minimum bending control part is annular, so that the optical fiber redundant section can bypass the minimum bending control part by one or more circles.
5. According to the optical cable joint setting method, when the optical fiber redundant section is tightly wound on the minimum bending control part, the loose tube can separate the optical fiber from the minimum bending control part, so that the retraction redundancy of the loose tube is ensured, and the optical fiber can be prevented from being damaged by friction force when the optical fiber is directly contacted with the minimum bending control part and pulled.
6. In the method for setting the optical cable joint, when the optical fiber connecting part is connected, the hard loose sleeve is replaced by the soft loose sleeve in the step S21, and the soft loose sleeve has the function of the soft loose sleeve and can protect the bare optical fiber in the step S13. The soft loose tube can reduce the volume occupied by the hard loose tube, and is not easy to break compared with the hard loose tube of the optical cable.
7. The optical cable joint setting method of the invention continues to use the loose jacket in the optical cable when the optical fiber connection part is connected, thus the installation efficiency is high.
8. According to the method for setting the optical cable joint, the fiber melting disc, the first bending control part and the second bending control part are fixed in the optical cable junction box, and in the step S12, the outer sheath is fixed at the threading opening of the optical cable junction box. Like this, can protect fiber melting dish, naked loose tube and optic fibre through the cable junction box, can also realize the fixed of oversheath, first crookedness control portion, second crookedness control portion and fiber melting dish.
9. The optical cable connecting box is internally provided with an optical cable outer sheath fixing part and a fiber melting disc, and is characterized in that a cable bending channel for setting fiber retraction redundancy is also arranged in the optical cable connecting box, the inner side wall of the cable bending channel is used for setting the bending control radius of the optical fiber, and a fiber retraction redundancy transverse deformation space is arranged in the cable bending channel. Like this, when optic fibre loose setting in the cable bend, optic fibre is drawn and before optic fibre pastes cable bend inner side arm, its at first can produce horizontal deformation, can not lead pulling force to optical fiber connection portion during this, and its crookedness after the cable bend can guarantee that optic fibre horizontal deformation does not show the optical signal transmission quality in the optic fibre, so, has reduced the probability that optical cable joint department breaks down.
Drawings
Fig. 1 is a diagram of a cable construction.
Fig. 2 is a junction diagram of a trunk optical cable.
Fig. 3 is a diagram of a stub cable attachment.
Reference numerals illustrate: 10. the fiber-melting plate comprises an outer sheath, 11, aramid yarns, 12, an outer water-resistant layer, 13, an inner sheath, 14, an inner water-resistant layer, 15, a loose tube, 16, an optical fiber, 17, a central reinforcing part, 21, a first minimum bending control part, 22, a second minimum bending control part, 31 and a fiber-melting plate.
Detailed Description
The present invention is described in the following embodiments in conjunction with the accompanying drawings to assist those skilled in the art in understanding and implementing the invention. The following examples and technical terms therein should not be construed to depart from the technical knowledge of the art unless otherwise indicated.
Fig. 1 shows a construction diagram of an optical cable comprising an outer jacket 10, aramid yarns 11, an outer water-resistant layer 12, an inner jacket layer 13, an inner water-resistant layer 14, a loose tube 15, optical fibers 16 and a central strength member 17. In general, the space between the loose tubes 15 in the inner water blocking layer 14 is filled with a cable paste, and the space between the optical fibers 16 in the loose tubes 15 is filled with a fiber paste.
The optical cable joint setting method of the invention comprises the following steps:
s11, arranging the connected optical fibers in a fiber melting disc;
s12, maintaining the relative positions of an outer sheath and a fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc;
s13, setting the bending control radius of the optical fiber redundant section, wherein the bending control radius is larger than or equal to the minimum bending radius of the optical fiber, and the bending radius of the optical fiber redundant section is larger than the bending control radius, so that the optical fiber redundant section has transverse deformation.
In the present invention, the curvature control radius may be set by the minimum curvature control section. Specifically, in step S13, the redundant segment of the optical fiber is loosely wound on the minimum bending control portion, and the minimum bending radius of the optical fiber wound by the minimum bending control portion is attached to the minimum bending control radius.
In the present invention, in step S13, the optical fiber redundant segment may be loosely wound around the minimum bending degree control part by half a turn.
In the present invention, the minimum curvature control portion may be in a ring shape, such as an elliptical ring, a circular ring. The side of the ring may be continuous or may be a ring formed by a succession of interspersed control segments.
In the invention, the loose tube of the optical cable is protruded out of the outer sheath of the optical cable at the end of the optical cable joint, so that the loose tube can separate the optical fiber from the minimum curvature control part when the optical fiber redundant section is tightly wound on the minimum curvature control part.
Example 1: a method of connecting an optical cable comprising the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner protective layer and the loose tube with proper lengths to make the loose tube of the optical cable be the original loose tube, sleeving the soft loose tube on the optical fiber, and fixedly connecting the soft loose tube with the original loose tube;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected.
A method of setting an optical cable joint comprising the steps of:
s11, arranging the connected optical fibers in a fiber melting disc;
s12, maintaining the relative positions of an outer sheath and a fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc;
s13, a first curvature control part and a second curvature control part are respectively arranged on two sides of the fiber melting disc, optical fibers with soft loose tubes on one side of the optical fiber connection part are loosely wound on the first curvature control part, and optical fibers with soft loose tubes on the other side of the optical fiber connection part are loosely wound on the second curvature control part.
The minimum bending radius of the optical fiber wound by the first bending control part is the bending control radius of the first bending control part, and the bending control radius of the first bending control part is more than or equal to the minimum bending radius of the optical fiber. The minimum bending radius of the optical fiber wound by the second bending control part is the bending control radius of the second bending control part, and the bending control radius of the second bending control part is more than or equal to the minimum bending radius of the optical fiber.
In this embodiment, the fiber melting disc, the first bending control part and the second bending control part are fixed in the optical cable junction box, and in step S12, the outer sheath is fixed at the threading opening of the optical cable junction box.
Example 2: a method of connecting an optical cable comprising the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner sheath and the loose tube with proper lengths;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected;
a method of setting an optical cable joint comprising the steps of:
s11, arranging the connected optical fibers in a fiber melting disc;
s12, maintaining the relative positions of an outer sheath and a fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc;
s13, a first curvature control part and a second curvature control part are respectively arranged on two sides of the fiber melting disc, optical fibers with loose tubes on one side of the optical fiber connecting part are loosely wound on the first curvature control part, and optical fibers with loose tubes on the other side of the optical fiber connecting part are loosely wound on the second curvature control part.
The minimum bending radius of the optical fiber wound by the first bending control part is the bending control radius of the first bending control part, and the bending control radius of the first bending control part is more than or equal to the minimum bending radius of the optical fiber. The minimum bending radius of the optical fiber wound by the second bending control part is the bending control radius of the second bending control part, and the bending control radius of the second bending control part is more than or equal to the minimum bending radius of the optical fiber.
In this embodiment, the fiber melting disc, the first bending control part and the second bending control part are fixed in the optical cable junction box, and in step S12, the outer sheath is fixed at the threading opening of the optical cable junction box.
Example 3: the invention also provides an optical cable connecting box, which is internally provided with an optical cable outer sheath fixing part, a fiber melting disc and a cable bend used for setting the fiber retraction redundancy, wherein the inner side wall of the cable bend is used for setting the bending control radius of the optical fiber, and the cable bend is internally provided with the fiber retraction redundancy transverse deformation space.
In specific implementation, the cable bend may be disposed on an optical fiber disc, the optical fiber disc being secured within the cable junction box; the cable bend may also be provided on the fiber melting disc; the cable bend may also be secured within the cable junction box.
Fig. 2 shows a relay type optical cable connection diagram, which includes a first minimum curvature control part 21, a second minimum curvature control part 22 and a fiber melting disc 31, wherein the first minimum curvature control part 21 and the second minimum curvature control part 22 are vertical type joint discs, and the fiber melting disc 31 is a horizontal type joint disc.
Fig. 3 shows a stub cable attachment diagram comprising a first minimum bend control portion 21, a second minimum bend control portion 22 and a fiber optic disc 31, the first minimum bend control portion 21, the second minimum bend control portion 22 and the fiber optic disc 31 being vertical splice trays.
The invention is described in detail above with reference to the drawings and examples. It should be understood that the description of all possible embodiments is not intended to be exhaustive or to limit the inventive concepts disclosed herein to the precise form disclosed. The technical characteristics of the above embodiments are selected and combined, specific parameters are experimentally changed by those skilled in the art, or the technical means disclosed in the present invention are conventionally replaced by the prior art in the technical field, which is not paid with creative work, and all the specific embodiments are implicitly disclosed in the present invention.
Claims (10)
1. A method of setting an optical cable joint, comprising the steps of:
s11, arranging the connected optical fibers in a fiber melting disc;
s12, maintaining the relative positions of an outer sheath and a fiber melting disc of the optical cable, and respectively arranging fiber redundancy sections at two sides of the fiber melting disc;
s13, setting the bending control radius of the optical fiber redundant section, wherein the bending control radius is larger than or equal to the minimum bending radius of the optical fiber, and the bending radius of the optical fiber redundant section is larger than the bending control radius, so that the optical fiber redundant section has transverse deformation.
2. The method for installing an optical cable joint according to claim 1, wherein in step S13, the redundant segment of the optical fiber is loosely wound around the minimum bending control portion, and the minimum bending radius of the optical fiber wound around the minimum bending control portion is attached to the bending control radius.
3. The fiber optic cable splice placement method of claim 2 wherein, in step S13, the redundant segment of optical fiber is loosely bypassed around the minimum bend control portion half turn.
4. The fiber optic cable splice placement method of claim 2, wherein the minimum bend control portion is annular.
5. The method of installing a fiber optic cable joint according to claim 2, wherein a loose tube of the fiber optic cable protrudes from an outer jacket of the fiber optic cable at an end of the fiber optic cable joint such that the loose tube separates the optical fiber from the minimum bend control portion when the redundant segment of the optical fiber is tightly wound around the minimum bend control portion.
6. The method for setting a cable joint according to claim 2, wherein the method for connecting the optical cable comprises the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner protective layer and the loose tube with proper lengths to make the loose tube of the optical cable be the original loose tube, sleeving the soft loose tube on the optical fiber, and fixedly connecting the soft loose tube with the original loose tube;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected;
in step S13, a first curvature control portion and a second curvature control portion are respectively disposed on two sides of the fiber melting disc, an optical fiber with a soft loose tube on one side of the optical fiber connection portion is loosely wound on the first curvature control portion, and an optical fiber with a soft loose tube on the other side of the optical fiber connection portion is loosely wound on the second curvature control portion.
7. The method for setting a cable joint according to claim 2, wherein the method for connecting the optical cable comprises the steps of:
s21, processing the ends of two optical cables to be connected; processing the end of the fiber optic cable includes: stripping the outer sheath, the inner sheath and the loose tube with proper lengths;
s22, welding optical fibers, wherein an optical fiber connecting part is formed at the joint of the two optical fibers;
after all the optical fibers of the two optical cables are connected, the two optical cables are connected;
in step S13, a first bending control part and a second bending control part are respectively disposed at two sides of the fiber melting disc, the optical fiber with the loose tube at one side of the optical fiber connection part is loosely wound on the first bending control part, and the optical fiber with the loose tube at the other side of the optical fiber connection part is loosely wound on the second bending control part.
8. The method for installing a cable splice of claim 6 or 7, wherein the fiber melting tray, the first bending control section and the second bending control section are fixed within a cable junction box, and the outer jacket is fixed at a threading opening of the cable junction box in step S12.
9. The utility model provides an optical cable junction box, is equipped with optical cable oversheath fixed part and fiber melting dish in it, its characterized in that still is equipped with in it and is used for setting up the redundant cable winding way of optical fiber recovery, the inside wall of cable winding way is used for setting up the crookedness control radius of optical fiber, be equipped with the redundant transverse deformation space of optical fiber recovery in the cable winding way.
10. The fiber optic cable connection box of claim 9, wherein the cable bend is disposed on a fiber optic spool secured within the cable connection box; or the cable bend is arranged on the fiber melting disc; alternatively, the cable bend is secured within the cable junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310817369.0A CN116859534A (en) | 2023-07-05 | 2023-07-05 | Optical cable joint setting method and optical cable connecting box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310817369.0A CN116859534A (en) | 2023-07-05 | 2023-07-05 | Optical cable joint setting method and optical cable connecting box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116859534A true CN116859534A (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310817369.0A Pending CN116859534A (en) | 2023-07-05 | 2023-07-05 | Optical cable joint setting method and optical cable connecting box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116859534A (en) |
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2023
- 2023-07-05 CN CN202310817369.0A patent/CN116859534A/en active Pending
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