CN106324766A - Optical fiber pre-connecting piece and terminal box therewith - Google Patents
Optical fiber pre-connecting piece and terminal box therewith Download PDFInfo
- Publication number
- CN106324766A CN106324766A CN201610885590.XA CN201610885590A CN106324766A CN 106324766 A CN106324766 A CN 106324766A CN 201610885590 A CN201610885590 A CN 201610885590A CN 106324766 A CN106324766 A CN 106324766A
- Authority
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- China
- Prior art keywords
- optical fiber
- lock pin
- pin hole
- fiber connector
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an optical fiber pre-connecting piece and a terminal box therewith. The optical fiber pre-connecting piece comprises pre-connecting joints and sealing sleeves; connection ports are arranged at joints and used for connecting optical fiber joints; the connection ports comprise core-inserting holes; optical fiber through holes form in the middle of the core-inserting holes; an oblique angle forms between the connection ports and the horizontal direction; the sealing sleeves are mounted outside the optical fiber joints; the pre-connecting joints are in connection with the sealing sleeves through clamping slots or screw threads. The pre-connecting joints of the optical fiber pre-connecting piece are mounted on the terminal box; pre-connecting optical fiber joints or quick optical fiber connectors can be directly mounted when the terminal box shell is not opened, and thus the piece and the terminal box can achieve plug and play, are saved in connection time, are convenient to quick mount and construct and are flexibly and quickly wired and changed on the site; besides the sealing sleeves can protect the pre-connecting joints and have the dust-proof and water-proof function.
Description
Technical field
The present invention relates to fiber-optic connection field, be specifically related to a kind of predispersed fiber connector and there is this pre-connection part
Termination box.
Background technology
In recent years, along with the fast development of Internet service, broadband access technology constantly improves, the fiber to the home row of China
Industry has welcome the period of high speed development, and corollary equipment corresponding to fiber to the home have also been obtained extensively application.Outdoor pre-connection optical fiber
The telecommunication apparatus that termination box is indispensable as realizing fiber to the home, is used primarily in fiber-to-the-home " last one kilometer " access network
In, it is typically mounted at the vicinity of residential quarter, is installed by outdoor wall built-up or pole.At present, overwhelming majority optical fiber terminal box, its
Draw rubber-insulated wire or tail optical fiber to be usually on the adapter in termination box and installs and fix, the when that each client opening, will be
Termination box upper casing is opened, and connects by plugging rubber-insulated wire quick connector or tail optical fiber the most again；When the most both having delayed construction
Between, the most likely affect the signal of communication having opened client, it is also possible to injure the internal optical line constructed by.
In view of drawbacks described above, creator of the present invention obtains one light of the present invention finally through research for a long time and practice
Fine pre-connection part and there is the termination box of this pre-connection part.
Summary of the invention
For solving above-mentioned technological deficiency, the technical solution used in the present invention is, it is provided that a kind of predispersed fiber connector, including
Pre-connection joint and sealing shroud, described pre-connection joint is provided with connectivity port, is used for connecting fibre-optical splice, and described connectivity port has
Having lock pin hole, the center in described lock pin hole to be provided with optical fiber through hole, described connectivity port and horizontal direction have angle of inclination, described
Sealing shroud is arranged on outside described fibre-optical splice, and described pre-connection joint or is threadeded by draw-in groove with described sealing shroud.
It is also preferred that the left the depth bounds in described lock pin hole is 6.55-6.59mm, inside diameter ranges is 1.25-1.255mm, described
The diameter range of logical fine through hole is 0.1252-0.1256mm, and described lock pin hole is not more than 0.5 with the concentricity of described optical fiber through hole
μm。
It is also preferred that the left the inwall of described connectivity port is provided with Elastic buckle, it is used for fixing described fibre-optical splice.
It is also preferred that the left the end face in described lock pin hole scribbles ARC.
It is also preferred that the left described predispersed fiber connector also include attaching nut, the outer surface of described attaching nut be provided with for
The draw-in groove that special spanner is fixed, described attaching nut's inner surface is provided with screw thread, is used for connecting pre-connection joint.
It is also preferred that the left be provided with locating ring outside described pre-connection joint, described sealing shroud is provided with described locating ring outer surface
Witness marker.
It is also preferred that the left be provided with sealing ring outside described pre-connection joint.
It is also preferred that the left described sealing shroud afterbody is provided with sealing cap, described sealing cap is threadeded with described sealing shroud body, institute
In stating sealing cap, elastic sealing element is installed.
It is also preferred that the left described angle of inclination is determined by following formula:
Wherein, θ is described angle of inclination, and H is the degree of depth in described lock pin hole, and D is the external diameter in described lock pin hole, and C is described
Lock pin hole and the concentricity of described optical fiber through hole.
A kind of termination box, including box body and lid, the side of described box body and lid carries out pivot joint, described box by rotating shaft
The opposite side of body and lid is provided with fixing buckle, and described fixing card is buckled and is provided with locking mechanism, is provided with welding in described termination box
Dish and optical branching device fixed disk, it is characterised in that the upside of described box body and/or downside are provided with the predispersed fiber of several present invention
Connector.
The beneficial effects of the present invention is compared with the prior art:
1, the pre-connection joint of predispersed fiber connector is arranged on termination box, in the case of being not switched on termination box housing,
Can be mounted directly pre-connection fibre-optical splice or optical fiber quick connector, plug and play, reduce setting up time, fast and easy is installed
Construction, makes field wiring change the most rapidly.
2, lock pin hole is connected with the lock pin optical fiber mechanical contact of fibre-optical splice, and the Elastic buckle in lock pin hole makes connection more
It is firm to add, and plug-in docking mode makes replacing convenient, and lock pin hole end surface scribbles ARC, makes attenuated optical signal lower, makes
Longer with the life-span.
3, pre-connection part includes sealing shroud, is furnished with exclusion seal cap, has dust-proof, waterproof effect.
4, connectivity port has certain angle of inclination, and it is more firm to be connected with fibre-optical splice, and angle of inclination is according to lock pin
Hole data formula is calculated, and improves concentricity and the stability of optical fiber connecting portion, improves return loss.
5, pre-connection part product structure is simple, standard, and each parts pass through buckle or threaded, easy accessibility, and have
Having certain index, once breaking down can be with quick search.
6, termination box is provided with multiple predispersed fiber connector, can be according to practice of construction needs, and early stage can only be installed a small amount of
Pre-connection optical fiber, when the later stage has new client to open, then carries out new pre-connection optical fiber installation, facilitates dilatation and maintenance.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in various embodiments of the present invention, required in embodiment being described below
The accompanying drawing used is briefly described.
Fig. 1 is the explosive view of predispersed fiber connector of the present invention；
Fig. 2 is the profile that pre-connection pigtail fiber of the present invention connects end；
Fig. 3 is the axonometric chart of termination box of the present invention.
In figure, numeral represents:
1. Elastic buckle 15. lock pin hole, pre-connection joint 11. locating ring 12. sealing ring 13. connectivity port 14.
16. optical fiber through hole 2. sealing shroud 21. witness markers 22. seal cap 23. elastic sealing element 3. attaching nut 4. lid 5.
Box body 6. fixes buckle
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are described in more detail.
<pre-connection joint>
Shown in Fig. 1, predispersed fiber connector of the present invention includes pre-connection joint 1, sealing shroud 2 and attaching nut 3.Described
The outer surface of attaching nut 3 is provided with draw-in groove, it is possible to use special spanner is fixed at draw-in groove, is rotationally connected nut 3 and tightens, its
Inner surface is provided with screw thread, is used for connecting pre-connection joint 1.Described pre-connection joint 1 includes threaded ends and optical fiber joint end,
Locating ring 11 it is provided with between two ends.Wherein threaded ends has external screw thread, it is possible to be connected with the female thread of attaching nut 3.Light
The fine end outer surface that connects is provided with draw-in groove, and for being connected with sealing shroud 2, optical fiber joint end is provided with connectivity port 13, can directly pacify
Dress pre-connection fibre-optical splice or optical fiber quick connector, plug and play.Sealing ring 12 it is also equipped with outside described optical fiber joint end, can
Fit with the inwall with sealing shroud 2, play sealing function.Sealing shroud 2 afterbody is provided with sealing cap 22, described sealing cap 22 and sealing
The main body screw of set 1 connects, and is provided with elastic sealing element 23 in described sealing cap 22.Sealing shroud 22 has dust-proof, waterproof work
With, improve the safety and stability of pre-connection joint 1.Sealing shroud 2 main body and locating ring 11 are provided with witness marker 21, when two
The position of the witness marker 21 of person is to illustrating during correspondence that sealing shroud 2 installation puts in place.
Shown in Fig. 2, it is the profile of pre-connection joint 1 optical fiber joint end, and optical fiber joint end is provided with connectivity port
13, inwall is provided with Elastic buckle 14, is used for fixing fibre-optical splice.When fibre-optical splice inserts connectivity port 13, Elastic buckle 14 quilt
Compression, fibre-optical splice is inserted into fixed position, and Elastic buckle 14 recovers the groove effect with fibre-optical splice, fixing fibre-optical splice.
Connectivity port 13 has lock pin hole 15, for connecting the lock pin of fibre-optical splice.Lock pin hole 15 end face scribbles ARC, makes light
Fine attenuated optical signal is lower, and service life is longer.The center in lock pin hole 15 is provided with optical fiber through hole 16, is used for installing optical fiber, institute
State lock pin hole 15 the degree of depth for 6.55-6.59mm, inside diameter ranges is 1.25-1.255mm, the diameter model of described optical fiber through hole 16
Enclosing for 0.1252-0.1256mm, lock pin hole 15 is not more than 0.5 μm with the concentricity of optical fiber through hole 16.Lock pin hole 15 connects with optical fiber
The lock pin optical fiber of head connects mechanical contact, easy to connect, and standard is designed in lock pin hole 15, and precision is high, it is possible to reduce optical signal declines
Subtract.The most described connectivity port 13 has angle of inclination with horizontal direction, and described angle of inclination is determined by following formula:Wherein, θ is described angle of inclination, and H is the degree of depth in described lock pin hole 15, and D is described inserting
The external diameter of core bore 15, C is the concentricity in described lock pin hole 15 and optical fiber through hole 16.Connectivity port 13 has certain inclination angle
Degree, it is more firm to be connected with fibre-optical splice, and angle of inclination is calculated according to lock pin hole 15 data formula, improves optical fiber connecting portion
The concentricity of position and stability, improve return loss.
When pre-connection part uses, attaching nut 3 is arranged on termination box, and pre-connection joint 1 is with attaching nut 3 screw thread even
Connecing, the optical fiber in termination box inserts optical fiber through hole 16.Pre-connection joint 1 is separated with sealing shroud 2, turns on sealing cap 22.By light
Pre-connection fibre-optical splice or optical fiber quick connector, through sealing cap 22 and sealing shroud 2, are inserted connectivity port 13 by cable, and lock pin enters
Enter lock pin hole 15, confirm that Elastic buckle 14 is fixed.Sealing shroud 2 is connected with pre-connection joint 1 draw-in groove, sealing shroud 2 and locating ring
11 contacts, witness marker 21 position of surface both is corresponding, confirms that connection puts in place.Now sealing ring 12 connects with sealing shroud 2 inwall
Touch, play sealing function.Being tightened by sealing cap 22, elastic sealing element 3 and sealing ring 12 play sealing function, and pre-connection part has
The function of waterproof and dustproof, increases optical fiber connective stability.Predispersed fiber connector product structure is simple, standard, and each parts are by card
Button or threaded, easy accessibility, and there is fixed index, once breaking down can be with quick search.
<termination box>
Shown in Fig. 3, termination box of the present invention includes that passing on left of box body 5 and lid 4, described box body 5 and lid 4 turns
Axle carries out pivot joint, and right side is provided with fixing buckle 6, and fixing buckle 6 is provided with locking mechanism, and this locking mechanism is fixed screw.Box
The downside of body 5 is provided with 16 pre-connection parts of the present invention, can be according to practice of construction needs, and early stage can only be installed and be connected in advance on a small quantity
Connect optical fiber, when the later stage has new client to open, then carry out new pre-connection optical fiber installation, facilitate dilatation and maintenance.Set in termination box
There are fusion joining disk and optical branching device fixed disk, are respectively used to fusion joining disk and optical branching device are installed.During construction, termination box is fixed on peace
Holding position, by fiber access terminal box.Again optical fiber is incorporated into fusion joining disk, waits follow-up welding, optical branching device is fixed on
On optical branching device fixed disk, the input of optical branching device is incorporated into fusion joining disk, with optical fiber in fusion joining disk row welding, passes through tempreature bulb
Protect and fix.Finally being inserted by the optical fiber of the outfan of optical branching device in the optical fiber through hole 16 of pre-connection joint 1, optical fiber connects
Having entered, such pre-connection part can be mounted directly pre-connection fibre-optical splice or optical fiber quick connector, plug and play, and minimizing connects
The line time, fast and easy installation, field wiring change is the most rapidly.
<deformation of embodiment>
Pre-connection joint as described in above-mentioned embodiment and sealing shroud, present embodiment is different from part and is,
The optical fiber joint end of pre-connection joint is provided with external screw thread, and sealing shroud is provided with female thread, and both are threaded.
Connectivity port as described in above-mentioned embodiment, present embodiment is different from part and is, lock pin hole deep
Degree for 6.55mm, internal diameter is 1.25mm, a diameter of 0.1252mm of optical fiber through hole, and lock pin hole with the concentricity of optical fiber through hole is
0.1 μm, connectivity port is 8 ° with the angle of inclination of horizontal direction.
Connectivity port as described in above-mentioned embodiment, present embodiment is different from part and is, lock pin hole deep
Degree for 6.59mm, internal diameter is 1.255mm, a diameter of 0.1256mm of optical fiber through hole, the concentricity of lock pin hole and optical fiber through hole
Being 0.5 μm, connectivity port is 23 ° with the angle of inclination of horizontal direction.
Connectivity port as described in above-mentioned embodiment, present embodiment is different from part and is, lock pin hole deep
Degree for 6.57mm, internal diameter is 1.253mm, a diameter of 0.1254mm of optical fiber through hole, the concentricity of lock pin hole and optical fiber through hole
Being 0.3 μm, connectivity port is 16 ° with the angle of inclination of horizontal direction.
Termination box as described in above-mentioned embodiment, present embodiment is different from part and is, box body 5 and lid
Right side carries out pivot joint by rotating shaft, and left side is provided with fixing buckle, and the locking mechanism that fixing card is buckled is latch.
Locking mechanism as described in above-mentioned embodiment, present embodiment is different from part and is, fixing card is buckled
Locking mechanism be springlock.
Termination box as described in above-mentioned embodiment, present embodiment is different from part and is, the upside of box body sets
There are 16 pre-connection parts.
Termination box as described in above-mentioned embodiment, present embodiment be different from part be, the upside of box body and
Downside is respectively equipped with eight pre-connection parts.
The foregoing is only presently preferred embodiments of the present invention, be merely illustrative for the purpose of the present invention, and non-limiting
's.Those skilled in the art understands, it can be carried out many changes in the spirit and scope that the claims in the present invention are limited,
Amendment, even equivalence, but fall within protection scope of the present invention.
Claims (10)
1. a predispersed fiber connector, it is characterised in that include that pre-connection joint and sealing shroud, described pre-connection joint are provided with even
Connecing port, be used for connecting fibre-optical splice, described connectivity port has lock pin hole, and the center in described lock pin hole is provided with optical fiber through hole,
Described connectivity port and horizontal direction have angle of inclination, and described sealing shroud is arranged on outside described fibre-optical splice, described pre-company
Joint or is threadeded by draw-in groove with described sealing shroud.
2. predispersed fiber connector as claimed in claim 1, it is characterised in that the depth bounds in described lock pin hole is 6.55-
6.59mm, inside diameter ranges is 1.25-1.255mm, and the diameter range of described logical fine through hole is 0.1252-0.1256mm, described slotting
Core bore is not more than 0.5 μm with the concentricity of described optical fiber through hole.
3. predispersed fiber connector as claimed in claim 2, it is characterised in that the inwall of described connectivity port is provided with elastic card
Button, is used for fixing described fibre-optical splice.
4. predispersed fiber connector as claimed in claim 3, it is characterised in that the end face in described lock pin hole scribbles anti-reflective coating
Layer.
5. predispersed fiber connector as claimed in claim 1, it is characterised in that described predispersed fiber connector also includes connecting spiral shell
Mother, the outer surface of described attaching nut is provided with the draw-in groove being fixed for special spanner, and described attaching nut's inner surface sets
There is screw thread, be used for connecting pre-connection joint.
6. predispersed fiber connector as claimed in claim 5, it is characterised in that the outside of described pre-connection joint is provided with location
Ring, described sealing shroud and described locating ring outer surface are provided with witness marker.
7. predispersed fiber connector as claimed in claim 6, it is characterised in that be provided with sealing outside described pre-connection joint
Circle.
8. predispersed fiber connector as claimed in claim 7, it is characterised in that described sealing shroud afterbody is provided with sealing cap, described
Seal cap to threaded with the body of described sealing shroud, in described sealing cap, elastic sealing element is installed.
9. pre-connection part as claimed in claim 2, it is characterised in that described angle of inclination is determined by following formula:
Wherein, θ is described angle of inclination, and H is the degree of depth in described lock pin hole, and D is the external diameter in described lock pin hole, and C is described lock pin
Hole and the concentricity of described optical fiber through hole.
10. a termination box, including box body and lid, the side of described box body and lid carries out pivot joint, described box by rotating shaft
The opposite side of body and lid is provided with fixing buckle, and described fixing card is buckled and is provided with locking mechanism, is provided with welding in described termination box
Dish and optical branching device fixed disk, it is characterised in that the upside of described box body and/or downside are provided with several claim 1-9 and appoint
Predispersed fiber connector described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885590.XA CN106324766B (en) | 2016-10-11 | 2016-10-11 | Optical fiber pre-connecting piece and terminal box with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885590.XA CN106324766B (en) | 2016-10-11 | 2016-10-11 | Optical fiber pre-connecting piece and terminal box with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324766A true CN106324766A (en) | 2017-01-11 |
| CN106324766B CN106324766B (en) | 2020-09-01 |
Family
ID=57820267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885590.XA Active CN106324766B (en) | 2016-10-11 | 2016-10-11 | Optical fiber pre-connecting piece and terminal box with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324766B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111107446A (en) * | 2019-12-18 | 2020-05-05 | 烽火海洋网络设备有限公司 | Outdoor repeater's sealed casing and outdoor repeater |
| CN112290340A (en) * | 2020-10-15 | 2021-01-29 | 贵州电网有限责任公司 | Outgoing cable pre-installation thread sleeve on power equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395514A (en) * | 2005-11-22 | 2009-03-25 | 康宁光缆系统有限责任公司 | Fiber optic closure methods and apparatus |
| CN101669057A (en) * | 2007-03-23 | 2010-03-10 | Adc电信公司 | Drop terminal with anchor block for retaining a stub cable |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
| CN205562918U (en) * | 2016-04-11 | 2016-09-07 | 宁波展通电信设备股份有限公司 | Outdoor prebinding optical fiber termination box |
-
2016
- 2016-10-11 CN CN201610885590.XA patent/CN106324766B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395514A (en) * | 2005-11-22 | 2009-03-25 | 康宁光缆系统有限责任公司 | Fiber optic closure methods and apparatus |
| CN101669057A (en) * | 2007-03-23 | 2010-03-10 | Adc电信公司 | Drop terminal with anchor block for retaining a stub cable |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
| CN205562918U (en) * | 2016-04-11 | 2016-09-07 | 宁波展通电信设备股份有限公司 | Outdoor prebinding optical fiber termination box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111107446A (en) * | 2019-12-18 | 2020-05-05 | 烽火海洋网络设备有限公司 | Outdoor repeater's sealed casing and outdoor repeater |
| CN112290340A (en) * | 2020-10-15 | 2021-01-29 | 贵州电网有限责任公司 | Outgoing cable pre-installation thread sleeve on power equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106324766B (en) | 2020-09-01 |
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Address after: 315456 Fumin Industrial Zone, Mou Shan town, Ningbo, Zhejiang, Yuyao Applicant after: NINGBO ZHANTONG TELECOM EQUIPMENT CO., LTD. Address before: 315456 Fumin Industrial Zone, Mou Shan town, Ningbo, Zhejiang, Yuyao Applicant before: Ningbo Zhantong Telecom Equipment Industrial Co., Ltd. |
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