CN108983364B - Bare fiber butt-joint device and nonstandard optical fiber movable butt-joint structure - Google Patents
Bare fiber butt-joint device and nonstandard optical fiber movable butt-joint structure Download PDFInfo
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- CN108983364B CN108983364B CN201810726128.4A CN201810726128A CN108983364B CN 108983364 B CN108983364 B CN 108983364B CN 201810726128 A CN201810726128 A CN 201810726128A CN 108983364 B CN108983364 B CN 108983364B
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- 239000000835 fiber Substances 0.000 title claims abstract description 78
- 239000013307 optical fiber Substances 0.000 title claims abstract description 48
- 238000003825 pressing Methods 0.000 claims abstract description 77
- 230000003287 optical effect Effects 0.000 claims abstract description 72
- 210000001503 joint Anatomy 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims description 5
- 238000003032 molecular docking Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- G02B6/24—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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to the technical field of optical fiber communication, in particular to a bare fiber butt joint device for butt joint of bare fibers and a nonstandard optical fiber movable butt joint structure for butt joint between two sections of optical cables; comprises a seat body, a sliding block and a pressing cover; a V-shaped groove is formed on the seat body; the sliding block is arranged on the base body in a sliding manner, and bare fibers formed by peeling the end parts of the second optical cable are arranged on the V-shaped groove in a sliding manner; a pressing block which can be pressed on the V-shaped groove in the pressing process of the pressing cover is arranged on the pressing cover; and a driving structure which enables the sliding block to move along the length direction of the V-shaped groove in the process of turning up or pressing the pressing cover is formed between the pressing cover and the sliding block. The technical scheme provided by the invention solves the technical problems of high welding cost, high technical requirement on the professional construction process and long field operation time of the conventional bare fiber butt joint mode.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to a bare fiber butt joint device for butt joint of bare fibers and a nonstandard optical fiber movable butt joint structure.
Background
In the present informatization age, people have also increasingly demanded information, and accordingly, optical fiber jumpers are increasingly used, and the optical fiber jumpers mainly play a role in connection. The connectors at two ends of the existing optical fiber jumper are connectors with inserting cores, usually SC or FC connectors, when facing to a bare fiber optical cable accessed by a user end, a section of bare fiber with a standard connector can be welded at one end of the bare fiber by a welding machine, and then the connectors are butted with connectors laid in advance by operators in an adapter.
When facing the bare fiber optical cable access, the existing access mode is to weld a section of bare fiber with a standard joint on the bare fiber optical cable, and the access mode has the following short plates and defects: on one hand, constructors need to be provided with a welding machine, welding cost is high, the operation of the welding machine needs to be relatively familiar, professional technical requirements for personnel operating on site are high, and waiting time is long when a heat-shrinkable tube is subjected to heat shrinkage; on the other hand, in the manufacturing process of connectors such as SC and FC, a plurality of complicated procedures such as grinding end faces and multi-step testing are required, and in general, the technical difficulty of these procedures is high, which results in an increase in the rejection rate of finished products.
Disclosure of Invention
The invention aims to provide a bare fiber butt joint device and a nonstandard optical fiber movable butt joint structure, and the technical scheme provided by the invention solves the technical problems of high welding cost, high technical requirement on the professional construction process and long field operation time of the conventional bare fiber butt joint mode.
In order to solve the technical problems, an aspect of the present invention provides a bare fiber butt-joint device for butt-jointing two optical cables; the device comprises a seat body which is prefabricated and connected with a first optical cable, a sliding block used for installing a second optical cable and a pressing cover pivoted on the seat body; a V-shaped groove is formed on the base body, and a bare fiber formed by peeling the end part of the first optical cable is fixedly arranged on the V-shaped groove; the sliding block is arranged on the base body in a sliding manner, and bare fibers formed by peeling the end parts of the second optical cable are arranged on the V-shaped groove in a sliding manner; a pressing block which can be pressed on the V-shaped groove in the pressing process of the pressing cover is arranged on the pressing cover; and a driving structure which enables the sliding block to move along the length direction of the V-shaped groove in the process of turning up or pressing the pressing cover is formed between the pressing cover and the sliding block.
Preferably, the seat body is in a two-step ladder shape; the upper end surface of the higher first step is a flat end surface, and the V-shaped groove is formed on the upper end surface of the first step; the sliding block is arranged on the second lower step in a sliding way, and a guide groove formed on the sliding block is right opposite to the end part of the V groove.
Preferably, a chute along the V-groove direction is formed on the side surface of the seat body; an extension arm matched with the chute is formed on the sliding block.
Preferably, the number of the extension arms is two; a cross beam is formed at the end parts of the two extension arms in a closed mode; a limiting groove is formed on the bottom surface of the second step on the seat body along the direction perpendicular to the V groove; the cross beam is embedded in the limit groove.
Preferably, the width of the limit groove along the V-shaped groove direction is 0 mm-2 mm greater than the thickness of the cross beam along the V-shaped groove direction.
Preferably, the lower pressing block is pivoted in the pressing cover and can turn over in a plane with the V-shaped groove; the end face, which is contacted with the first step, of the lower pressing block is arranged flatly.
Preferably, pivot shafts are respectively formed on two sides of the first step on the seat body; the pressing cover is pivoted with the seat body through the pivot and covers the seat body and the sliding block.
Preferably, clamping blocks protruding outwards towards two sides of the seat body are respectively formed on the two extension arms of the sliding block at positions below the pivot; two extending blocks are formed on the pressing cover around the pivot connection part; in the overturning process of the pressing cover, the two extending blocks respectively lean against the clamping blocks, so that the sliding blocks slide along the V-shaped groove direction; the clamping blocks and the extending blocks form the driving structure.
Preferably, a fixing part for fixing the first optical cable is formed at the first stepped end of the base; guide grooves respectively butted with the V grooves are formed in the sliding block and the fixing part; an included angle of 2-6 degrees exists between the sliding block and/or the fixing part and the V groove.
Preferably, the first optical cable and the second optical cable are respectively clamped on the fixing part and the sliding block of the base body through metal buckles.
The invention also provides a nonstandard optical fiber movable butt joint structure, which comprises an optical fiber, an optical fiber connector prefabricated at one end of the optical fiber and any bare fiber butt joint device arranged at the other end of the optical fiber.
Preferably, the optical fiber connector is an FC connector or an SC connector.
From the above, the following beneficial effects can be obtained by applying the invention: the base body is prefabricated to be connected with the first optical cable, the bare fibers formed by peeling the second optical cable to be butted are fixed on the sliding block after being cut in a fixed length, and the perfect butt joint between the bare fibers at the user end and the bare fibers at the embedded end can be completed by buckling the pressing cover. The need for adapters when different types of connectors are eliminated; compared with the hot melting, the method has lower cost and simpler operation; the field mechanical butt joint operation is used, so that the professional technical requirements on operators are reduced; the 4-degree angle microbending modification of the guide groove enables the optical fibers to form an inclined plane during butt joint, and the return loss in the butt joint process can be effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from them without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a nonstandard optical fiber movable butt joint structure according to an embodiment of the invention;
FIG. 2 is a schematic view of a bare fiber butt joint device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a bare fiber butt joint device according to a second embodiment of the present invention;
FIG. 4 is an exploded view of a bare fiber butt joint according to an embodiment of the present invention;
FIG. 5 is a schematic view of a seat according to an embodiment of the present invention;
FIG. 6 is a second schematic view of a seat structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a slider structure according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a second slider structure according to an embodiment of the present invention;
FIG. 9 is a schematic view of a press-fit cover according to an embodiment of the present invention;
FIG. 10 is a schematic view of a lower pressing block structure according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of a bare fiber mating process in accordance with an embodiment of the present invention;
FIG. 12 is a second cross-sectional view of a bare fiber mating process according to an embodiment of the present invention;
FIG. 13 is a partial schematic view of a bare fiber butt joint process according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
When the bare fiber optical cable is accessed, the existing access mode is to weld a section of bare fiber with a standard joint on the bare fiber optical cable, a constructor needs to be provided with a welding machine, the welding cost is high, the operation of the welding machine needs to be relatively familiar, the professional technical requirements of personnel operating on site are high, and the waiting time is long when the thermal shrinkage pipe is subjected to thermal shrinkage; in addition, because the connectors such as SC, FC and the like need to be subjected to a plurality of complex procedures such as grinding end faces, multi-step testing and the like in the manufacturing process, the technological difficulty is high, and the rejection rate of finished products is increased.
Referring to fig. 1, in order to solve the above-mentioned technical problems, the present embodiment provides a nonstandard optical fiber movable butt joint structure for butt joint between two optical cables. The end part of one section of optical cable is provided with a connector which can be prefabricated into connectors in the shapes of FC or SC and the like; the other end optical cable is the embedded bare fiber of the user end.
For the optical cable butt joint with the structure, the nonstandard optical fiber movable butt joint structure comprises an optical fiber 1, an optical fiber connector 2 prefabricated at one end of the optical fiber 1 and a bare fiber butt joint device 3 arranged at the other end of the optical fiber 1. The optical fiber 1 is an optical fiber except two sections of optical cables and is used for realizing butt joint of the two sections of optical cables to provide a jumper function; the optical fiber connector 2 can adopt a connector of a conventional connector, and can be prefabricated into connectors in FC or SC and other shapes according to the requirements of customers in factories; the bare fiber butt-joint device 3 uses a pre-buried bare fiber butt-joint structure, and the butt-joint operation can be directly finished at the bare fiber butt-joint device after the bare fiber is cut to a fixed length after the optical cable at the user side is stripped.
Referring to fig. 2-4, in order to implement the bare fiber docking operation described above, the bare fiber docker 3 provided in this embodiment includes a base 100, a slider 200, and a pressing cover 300. The base 100 is preformed to be fixedly connected with a first optical cable, where the first optical cable is the optical fiber that provides the jumper function, and for clarity of explanation of the technical scheme and understanding of the technical scheme, the optical fiber is hereinafter referred to as a first optical cable; the sliding block 200 is slidably disposed on the base 100, and is used for installing a second optical cable; the press cover 300 is pivotally connected to the base 100, and can be turned over to cover the base 100 and the slider 200.
In particular, the method comprises the steps of,
referring to fig. 5-6, between the housing 100 and the first fiber optic cable: a V-groove 110 and a fixing portion 120 for fixing the first optical cable are formed on the base body 100. The processing mode of this step is consistent with that of the optical fiber connector, and the pretreatment is required in a factory, and after one end of the first optical cable is assembled with the conventional connector, the other end is assembled with the housing 100.
When the cable is assembled in a factory, the first optical cable is cut into a fixed length, peeled and well placed on the seat body 100, and the rubber-covered wire of the first optical cable is fixed on the fixed part 120 of the seat body 100, and can be clamped in the clamping groove 121 arranged on the fixed part 120 through a four-pin metal buckle, so that the tensile requirement of the cable is met; the bare fiber formed by stripping the end of the first optical cable falls to the middle of the V-groove 110. A tail cap 130 may be further covered on the fixing portion 120 to provide protection for the first optical cable disposed at the fixing portion 120. After the assembly, the connection and fixation between the first optical cable and the base 100 can be completed, and the bare fiber of the first optical cable is fixedly placed on the V-groove 110.
Referring to fig. 7-8, between the slider 200 and the second fiber optic cable: the slider 200 is used for fixing the second optical cable, and the slider 200 is slidably disposed on the base 100, so that the bare fiber formed by peeling the end of the second optical cable is slidably disposed on the V-groove 110. Referring to the base 100, a clamping groove 210 for fixing the second optical cable is also provided on the slider 200, and specifically, the second optical cable can be clamped on the clamping groove 210 of the slider 200 through a four-pin metal buckle, so as to meet the tensile requirement of the cable. And a guide groove 220 communicating with the card groove 210 is also formed on the slider 200, the guide groove 220 being opposite to the end of the V groove 110. The second optical cable is a pre-buried bare fiber at the user end, and is a bare fiber to be spliced, and the splicing process of the second optical cable is described in detail below, and only the features of the slider 200, the press-fit cover 300, and the like, which are related to the second optical cable in technology, will be described in detail herein.
Between the slider 200 and the base 100: in order to achieve the assembly between the slider 200 and the housing 100, the housing 100 has a stepped shape of two steps. The upper end surface of the higher first step 140 is a flat end surface, and the V-groove 110 is formed on the upper end surface of the first step 140; the slider 200 is slidably disposed on the lower second step 150. In order to realize the relative sliding between the slider 200 and the housing 100, a slide groove 160 along the V-groove 110 is formed at the side surface of the housing 100, and an extension arm 230 matching the slide groove 160 is formed at the slider 200. As a preferred solution, the number of the sliding grooves 160 is equal to that of the extension arms 230, and two sliding grooves 160 are respectively disposed at two sides of the base 100.
Referring to fig. 9-10, between the press-fit cover 300 and the base 100: the base 100 is formed with a pivot 101 at two sides of the first step 140, and the press cover 300 is pivoted with the base 100 through the pivot 101 and covers the base 100 and the slider 200.
In order to realize the butt joint of the first optical cable and the second optical cable on the V-groove 110 during the process of overturning and pressing the pressing cover 300 on the seat body 100, a lower pressing block 310 capable of being pressed on the V-groove 110 during the pressing process of the pressing cover 300 is arranged on the pressing cover 300, the lower pressing block 310 is pivoted in the pressing cover 300 through a shaft and can overturn in a plane with the V-groove 110, and the end face, contacted with the first step 140, of the lower pressing block 310 is in a flat arrangement. In the butt joint process, the V groove 110 is horizontally placed, the lower pressing block 310 sags by the gravity of the lower pressing block 310 and always keeps a parallel state with the V groove 110, when the pressing cover 300 is turned over to enable the lower pressing block 310 to be in contact with bare fibers on the V groove 110, the lower pressing block 310 can rotate around a small amplitude in the cover plate, when the lower pressing block is further pressed down, even if relative movement exists between the lower pressing block 310 and the bare fibers, the phenomenon of rubbing fibers in microscopic sense is avoided due to the fact that the lower pressing block 310 rotates, and the fact that the lower pressing block 310 cannot damage the bare fibers in the pressing fixing process of the bare fibers is ensured.
Between the press-fit cover 300 and the slider 200: a driving structure for moving the slider 200 along the length direction of the V-groove 110 during the flip-up or press-fitting of the press-fit cover 300 is formed between the press-fit cover 300 and the slider 200. And a fastening structure 102 fastened with each other is further disposed between the pressing cover 300 and the base 100, so as to realize fastening and fixing between the pressing cover 300 and the base 100.
Clamping blocks 201 protruding outwards towards two sides of the seat body 100 are respectively formed on the two extension arms 230 of the sliding block 200 at positions below the pivot 101, two extension blocks 301 are formed on the joint of the pressing cover 300 around the pivot 101, and the clamping blocks 201 and the extension blocks 301 form a driving structure. In the overturning process of the press cover 300, the two extending blocks 301 respectively abut against the clamping blocks 201, so that the sliding block 200 slides along the V-groove 110.
Referring to fig. 11-12, during the operation on site, the press-fit cover 300 is opened, one of the extending blocks 301 on the press-fit cover 300 is propped against the clamping block 201 of the sliding block 200, the sliding block 200 is ejected along with the overturning of the press-fit cover 300, at this time, the lower pressing block 310 is separated from the V-groove 110, and the sliding block 200 is also separated from the seat 100.
The target optical cable, i.e., the second optical cable, is put on the clamping groove 121 of the slider 200 after being cut by fixed length stripping, and is fixed by a metal buckle.
And then the pressing cover 300 is covered, when the pressing cover 300 rotates, the other extending block 301 on the pressing cover 300 moves forwards against the clamping block 201 on the sliding block 200 for a small distance, the first optical cable and the second optical cable are respectively fixed on the seat body 100 and the sliding block 200, the clamping block 201 and the extending block 301 are matched to realize the sliding of the V-shaped groove 110 to the sliding block 200, at the moment, the cut bare fiber of the second optical cable slowly moves forwards to butt against the bare fiber of the first optical cable, when the pressing cover 300 reaches the fastening structure 102 on the seat body 100, the fixation between the pressing cover 300 and the seat body 100 is completed, the pressing cover 300 supports the lower pressing block 310, and the butt joint operation is completed by pressing the bare fiber in the butt joint state in the V-shaped groove 110.
The above operation process is a fiber pressing process, and the fiber removing process is opposite, and the fiber removing mode is to remove the optical fiber by opening the pressing cover 300, and the extension block 301 of the pressing cover 300 abuts against the clamping block 201 of the sliding block 200.
The bare fiber butt-joint device and the nonstandard optical fiber movable butt-joint structure provided by the embodiment are directly in butt joint with the bare fiber, so that adapters needed in different types of connectors are omitted; the field mechanical butt joint operation is used, so that the professional technical requirements on operators are reduced; and the expensive equipment of the fusion splicer is saved, and compared with the hot fusion, the method has lower cost and simpler operation.
Example 2
The present embodiment provides a bare fiber butt joint device, which also includes a base 100, a slider 200, and a press cover 300. The base 100 is preformed to be fixedly connected with a first optical cable, where the first optical cable is the optical fiber that provides the jumper function, and for clarity of explanation of the technical scheme and understanding of the technical scheme, the optical fiber is hereinafter referred to as a first optical cable; the sliding block 200 is slidably disposed on the base 100, and is used for installing a second optical cable; the press cover 300 is pivotally connected to the base 100, and can be turned over to cover the base 100 and the slider 200.
In order to realize the relative sliding between the slider 200 and the housing 100, a slide groove 160 along the V-groove 110 is formed at the side surface of the housing 100, and an extension arm 230 matching the slide groove 160 is formed at the slider 200. As a preferred solution, the number of the sliding grooves 160 is equal to that of the extension arms 230, and two sliding grooves 160 are respectively disposed at two sides of the base 100.
Referring to fig. 7 to 8, as a further improvement of the technical solution, unlike embodiment 1, the end portions of the two extension arms 230 are closed to form a cross beam 240, and the bottom surface of the second step 150 on the seat 100 is formed with a limit groove 103 along the direction perpendicular to the V-groove 110, and the cross beam 240 is embedded in the limit groove 103. And the width of the limit groove 103 along the V-groove 110 is 0mm to 2mm greater than the thickness of the cross member 240 along the V-groove 110.
The two extending arms 230 of the slider 200 extending from the above structure are sleeved on the back of the seat 100 and slide in the reserved space of 0 mm-2 mm, and when assembled, the two extending arms 230 of the slider 200 slightly deform outwards to position the cross beams 240 at the front ends of the two extending arms 230 of the slider 200 in the reserved space of the limit groove 103, so that the slider 200 is prevented from being pulled out from the seat 100 on the basis of realizing the sliding between the slider 200 and the seat 100.
Example 3
The present embodiment provides a bare fiber butt joint device, which also includes a base 100, a slider 200, and a press cover 300. The base 100 is preformed to be fixedly connected with a first optical cable, where the first optical cable is the optical fiber that provides the jumper function, and for clarity of explanation of the technical scheme and understanding of the technical scheme, the optical fiber is hereinafter referred to as a first optical cable; the sliding block 200 is slidably disposed on the base 100, and is used for installing a second optical cable; the press cover 300 is pivotally connected to the base 100, and can be turned over to cover the base 100 and the slider 200.
Referring to fig. 13, as a further improvement of the technical solution, this embodiment is different from embodiment 1 or 2 in that a fixing portion for fixing the first optical cable is formed at the end of the first step 140 of the base 100, guide grooves respectively abutting against the V-groove 110 are formed on the slider 200 and the fixing portion, and an included angle of 2 ° to 6 ° is formed between the slider 200 and/or the fixing portion and the V-groove 110.
Specifically, an included angle of 4 degrees can exist between the guide groove of the sliding block 200 and the seat body 100 and the V groove 110, and the bare fiber can be led downwards in an inclined manner through the included angle of 4 degrees of the guide groove, so that the bare fiber can fall on the V groove 110 more accurately, the stress of the bending condition of the optical fiber at the angle of 4 degrees on the microcosmic optical fiber can pull the end face of the optical fiber to a slight inclined plane, and the return loss in the butt joint process is effectively improved.
Example 4
The present embodiment provides a bare fiber butt joint device, which also includes a base 100, a slider 200, and a press cover 300. The base 100 is preformed to be fixedly connected with a first optical cable, where the first optical cable is the optical fiber that provides the jumper function, and for clarity of explanation of the technical scheme and understanding of the technical scheme, the optical fiber is hereinafter referred to as a first optical cable; the sliding block 200 is slidably disposed on the base 100, and is used for installing a second optical cable; the press cover 300 is pivotally connected to the base 100, and can be turned over to cover the base 100 and the slider 200.
As a further improvement of the technical scheme, unlike the above embodiment, the middle of the lower pressing block 310 is hollowed out, and the lower pressing block 310 of the structure prevents waste of materials and too large injection molding thickness, and when the thickness of the lower pressing block 310 is too large, the surface of the lower pressing block 310 is uneven due to shrinkage during condensation, so that the optical fiber cannot be compressed.
The above-described embodiments do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present invention.
Claims (11)
1. A bare fiber butt joint device, characterized in that: the butt joint device is used for butt joint between two sections of optical cables; the device comprises a seat body which is prefabricated and connected with a first optical cable, a sliding block used for installing a second optical cable and a pressing cover pivoted on the seat body; a V-shaped groove is formed on the base body, and a bare fiber formed by peeling the end part of the first optical cable is fixedly arranged on the V-shaped groove; the sliding block is arranged on the base body in a sliding manner, and bare fibers formed by peeling the end parts of the second optical cable are arranged on the V-shaped groove in a sliding manner; a pressing block which can be pressed on the V-shaped groove in the pressing process of the pressing cover is arranged on the pressing cover; a driving structure which enables the sliding block to move along the length direction of the V-shaped groove in the process of turning up or pressing the pressing cover is formed between the pressing cover and the sliding block;
the seat body is in a two-step ladder shape; the upper end surface of the higher first step is a flat end surface, and the V-shaped groove is formed on the upper end surface of the first step; the sliding block is arranged on the second lower step in a sliding way, and a guide groove formed on the sliding block is right opposite to the end part of the V groove.
2. The bare fiber docker according to claim 1, wherein: a sliding groove along the V-shaped groove direction is formed on the side surface of the seat body; an extension arm matched with the chute is formed on the sliding block.
3. The bare fiber docker according to claim 2, wherein: the number of the extension arms is two; a cross beam is formed at the end parts of the two extension arms in a closed mode; a limiting groove is formed on the bottom surface of the second step on the seat body along the direction perpendicular to the V groove; the cross beam is embedded in the limit groove.
4. A bare fiber dockee according to claim 3, characterized in that: the width of the limiting groove along the V-shaped groove direction is 0-2 mm greater than the thickness of the cross beam along the V-shaped groove direction.
5. The bare fiber docker according to claim 1, wherein: the lower pressing block is pivoted in the pressing cover and can turn over in a plane with the V groove; the end face, which is contacted with the first step, of the lower pressing block is arranged flatly.
6. The bare fiber docker according to claim 1 or 5, wherein: pivot shafts are respectively formed on two sides of the first ladder on the seat body; the pressing cover is pivoted with the seat body through the pivot and covers the seat body and the sliding block.
7. The bare fiber dockee according to claim 6, wherein: clamping blocks protruding outwards towards two sides of the seat body are respectively formed on the two extension arms of the sliding block at positions below the pivot; two extending blocks are formed on the pressing cover around the pivot connection part; in the overturning process of the pressing cover, the two extending blocks respectively lean against the clamping blocks, so that the sliding blocks slide along the V-shaped groove direction; the clamping blocks and the extending blocks form the driving structure.
8. The bare fiber docker according to claim 1, wherein: a fixing part for fixing the first optical cable is formed at the first stepped end part of the base body; guide grooves respectively butted with the V grooves are formed in the sliding block and the fixing part; an included angle of 2-6 degrees exists between the sliding block and/or the fixing part and the V groove.
9. The bare fiber docker according to claim 8, wherein: the first optical cable and the second optical cable are respectively clamped on the fixed part and the sliding block of the base body through metal buckles.
10. The utility model provides a nonstandard formula optic fibre activity butt joint structure which characterized in that: comprising an optical fiber, an optical fiber connector prefabricated at one end of the optical fiber, and the bare fiber butt-connector as claimed in any one of the preceding claims provided at the other end of the optical fiber.
11. The nonstandard optical fiber movable docking structure of claim 10, wherein: the optical fiber connector is an FC connector or an SC connector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810726128.4A CN108983364B (en) | 2018-07-04 | 2018-07-04 | Bare fiber butt-joint device and nonstandard optical fiber movable butt-joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810726128.4A CN108983364B (en) | 2018-07-04 | 2018-07-04 | Bare fiber butt-joint device and nonstandard optical fiber movable butt-joint structure |
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| CN108983364A CN108983364A (en) | 2018-12-11 |
| CN108983364B true CN108983364B (en) | 2024-04-12 |
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| CN111736273B (en) * | 2020-07-20 | 2021-09-21 | 中铁武汉电气化局集团有限公司 | Cold-pressing installation method for 5G antenna optical cable of urban rail transit |
Citations (9)
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| CN108983364A (en) | 2018-12-11 |
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