CN104991315A - Optical fiber connector - Google Patents
Optical fiber connector Download PDFInfo
- Publication number
- CN104991315A CN104991315A CN201510361194.2A CN201510361194A CN104991315A CN 104991315 A CN104991315 A CN 104991315A CN 201510361194 A CN201510361194 A CN 201510361194A CN 104991315 A CN104991315 A CN 104991315A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- internal fixtion
- cover
- fixed
- fixing sleeve
- 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.)
- Granted
Links
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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to an optical fiber connector, comprising a sleeve of which an axis extends along a front-rear direction, wherein the sleeve is fixedly provided with a tensile structure therein through a fixing structure, the tensile structure comprises an inner fixing sleeve of which an axis extends along the front-rear direction and an outer fixing sleeve covering the periphery of the inner fixing sleeve, the inner fixing sleeve has an inner bore through which corresponding optical fibers and aramid fibers can pass along the front-rear direction, a loading gap which has a forward opening and is used for loading of the everted aramid fiber from the front to the rear is provided between the inner fixing sleeve and the outer fixing sleeve, and the inner fixing sleeve and/or the outer fixing sleeve can be a crimping sleeve which can deform after crimping so that the inner fixing sleeve and the outer fixing sleeve tightly clamp the everted aramid fiber. The optical fiber connector of the present invention solves the problem that the assembling period of a connector product is long as a curing period of a filled colloid is long in the prior art.
Description
Technical field
The present invention relates to the joints of optical fibre for optical signal transmission.
Background technology
The existing joints of optical fibre are as shown in Figure 1: these joints of optical fibre comprise sleeve 1 and are fixed on the bonding cover 2 in sleeve, during use, the front end of optical cable passes by the endoporus of bonding cover, optical fiber 4 in optical cable and aramid fiber are fixed in bonding cover by encapsulating body 3s, so just can be realized the tension of optical cable by bonding cover.Existingly thisly realize that following problem is existed to the tensile structure of optical cable tensile by bonding cover and encapsulating body: the cure cycle of encapsulating body is long, generally needs within 1-2 days, just to complete the solidification of encapsulating body, therefore makes the assembly period of whole product longer; Due to optical fiber frangibility, therefore need to ensure that optical fiber has longer free pendulous tank when assembling thus ensures activity space, but optical fiber, aramid fiber are together fixed in bonding cover in prior art, therefore also need to arrange the longer free pendulous tank of optical fiber outside bonding cover, cause the entire length of connector longer.
Summary of the invention
The object of the present invention is to provide a kind of joints of optical fibre, to solve in prior art the problem causing the connector Product Assembly cycle long because encapsulating body cure cycle is long.
In order to solve the problem, technical scheme of the present invention is:
A kind of joints of optical fibre, comprise the sleeve that axis extends along the longitudinal direction, tensile structure is fixedly installed by fixed sturcture in sleeve, tensile structure comprises the internal fixtion cover that axis extends along the longitudinal direction and the fixed sleeves being sheathed on internal fixtion cover periphery, internal fixtion cover has the endoporus passed along the longitudinal direction for corresponding optical fiber and aramid fiber, in, there is between fixed sleeves the loading gap that opening aramid fiber confession turning up forward loads from front to back, internal fixtion cover and/or fixed sleeves are for crimping distortion and in making, the pressure welding case of the aramid fiber turned up described in fixed sleeves clamping.
There is between the hole wall of the endoporus of described internal fixtion cover and described optical fiber the radial play for optical fibre.
The wall thickness of fixed sleeves is less than the wall thickness of described internal fixtion cover.
Fixed sturcture comprises the block direction front stopping surface being forward arranged at described sleeve rear end, front stopping surface coordinates with the rear end face block of inside and outside fixed cover and limits inside and outside fixed cover and moves backwards, and fixed sturcture also comprises radially spinning and hold out against screw for what hold out against described fixed sleeves on described sleeve.
The rear end varus of sleeve has annular to turn edge, the front end face that described front stopping surface is turned edge by described annular is formed, the rear end face that described annular turns edge forms block direction rear stopping surface backwards, the rear side that sleeve turns edge in described annular is installed with set nut, pushes up the O-ring seal being provided with and being located at for sealing shroud on described optical cable between set nut and rear stopping surface.
Beneficial effect of the present invention is: in use, pass in the endoporus that the optical fiber of optical cable and aramid fiber are overlapped by internal fixtion along the longitudinal direction, then being turned up by the aramid fiber of internal fixtion cover front side makes in aramid fiber extending into from front to back, in loading gap between fixed sleeves, then internally fixed cover and/or fixed sleeves crimping, in, fixed sleeves clamps the aramid fiber that turns up thus to realize between tensile structure and aramid fiber fixing, and fixed by fixed sturcture between tensile structure and sleeve, therefore the tension to optical cable can finally be realized, owing to taking between tensile structure with aramid fiber to crimp fixed form, do not need encapsulating, therefore can realize making line fast, solve in prior art the problem causing the connector Product Assembly cycle long because encapsulating body cure cycle is long.
Further, there is between the hole wall of the endoporus of internal fixtion cover and optical fiber the radial play for optical fibre, that is the activity that optical fiber namely can be suitable in the endoporus of inner sleeve is broken to prevent optical fiber pack, therefore just can reduce the free pendulous tank of optical fiber on front side of tensile structure, thus reduce the length dimension of whole connector.
Accompanying drawing explanation
Fig. 1 is the structural representation of background technology in the present invention;
Fig. 2 is the using state figure of one embodiment of the present of invention.
Embodiment
A kind of embodiment of the joints of optical fibre is as shown in Figure 2: the joints of optical fibre in the present embodiment are a kind of photoelectric conversion connector, comprise the sleeve 1 that axis extends along the longitudinal direction, tensile structure is fixedly installed by fixed sturcture in sleeve 1, tensile structure comprises internal fixtion cover 3 that axis extends along the longitudinal direction and is sheathed on the fixed sleeves 4 that internal fixtion overlaps 3 peripheries, annular is had to turn edge 11 in the rear side varus of tensile structure in the endoporus of sleeve, fixed sturcture comprise block direction that the front end face that turned edge by annular forms forward before stopping surface, front stopping surface and interior, in the rear end face block of fixed sleeves coordinates and limits, fixed sleeves moves backwards, fixed sturcture also comprises radially spinning and hold out against screw for what hold out against fixed sleeves on sleeve, figure middle term 12 represents the screw hole for holding out against screw spinning.Internal fixtion cover 3 has the endoporus passed along the longitudinal direction for corresponding optical fiber and aramid fiber, in, there is between fixed sleeves the loading gap that the opening aramid fiber 2 confession turning up forward loads from front to back, internal fixtion cover and fixed sleeves are the pressure welding case that radially can crimp distortion, there is between the hole wall of the endoporus of internal fixtion cover 3 and optical fiber 14 radial play 13 for optical fibre, the wall thickness of fixed sleeves 4 is less than the wall thickness of internal fixtion cover 3, therefore in crimping process, only need crimp fixed sleeves 4, fixed sleeves distortion is larger, internal fixtion cover allows slight distortion, but there will not be moderate finite deformation, thus ensure that the radial play between the hole wall of the endoporus of internal fixtion cover and optical fiber exists all the time, ensure that optical fiber can active bending in internal fixtion cover.Annular turn edge 11 rear end face form block direction rear stopping surface backwards, the rear side that sleeve 1 turns edge in annular is installed with set nut 9, the O-ring seal 10 being provided with and being located at for sealing shroud on optical cable 15 is pushed up between set nut and rear stopping surface, the inner peripheral surface of O-ring seal forms the seal convexity 5 for realizing optical cable sealing by two ring-shaped grooves 6, the degree of depth of position ring-shaped groove is rearward more shallow, can ensure that rear side seal convexity has relatively large radial-deformation like this, thus realize better sealing optical cable.Figure middle term 16 represents that the oversheath of optical cable is had one's hair trimmed place.
When making line, make to cut off in the endoporus that the optical fiber of oversheath and aramid fiber overlap by internal fixtion along the longitudinal direction and pass, the aramid fiber turned up on front side of tensile structure, make in the aramid fiber that turns up being encased in from front to back, in loading gap between fixed sleeves, then fixed sleeves radial direction is exerted pressure, fixed sleeves clamps aramid fiber together with being out of shape and overlapping with internal fixtion, so just achieve the connection of aramid fiber and tensile structure, then tensile structure is loaded in sleeve, until in, the rear end of fixed sleeves is by front stopping surface block, then screw on and hold out against screw, hold out against screw and mainly can prevent tensile structure play forward, so just achieve the connection between sleeve and tensile structure, finally to screw on set nut, complete and make line, do line process simple and convenient, it is short to do the line cycle, due to can be movable to prevent from fractureing in the endoporus that optical fiber overlaps at internal fixtion, the free pendulous tank of the optical fiber on front side of reduction tensile structure that therefore can be suitable, thus the length of whole connector can be reduced.In other embodiment of these joints of optical fibre: the thickness of internal fixtion cover also can be thinner, and now inside and outside fixed cover is pressure welding case, as long as ensure that the distortion of internal fixtion cover can not produce excessive impact to radial play; The thickness of certain fixed sleeves also can be thinner than the thickness of internal fixtion cover, and now internal fixtion cover is pressure welding case; Fixed sleeves can also be the pressure welding case being made fixed sleeves clamp aramid fiber by axial pressure; Hold out against screw can also be arranged at jump ring on front side of tensile structure and replace, jump ring is arranged on the inner hole wall of sleeve, and jump ring coordinates with outer sleeve block and limits jump ring and move forward, and certain annular turns edge the jump ring replacement that also can be arranged on rear side of tensile structure; The rear end of inside and outside fixed cover can also one connect; The joints of optical fibre can also be only for the joints of optical fibre of optical signal transmission.
Claims (5)
1. joints of optical fibre, comprise the sleeve that axis extends along the longitudinal direction, it is characterized in that: in sleeve, be fixedly installed tensile structure by fixed sturcture, tensile structure comprises the internal fixtion cover that axis extends along the longitudinal direction and the fixed sleeves being sheathed on internal fixtion cover periphery, internal fixtion cover has the endoporus passed along the longitudinal direction for corresponding optical fiber and aramid fiber, in, there is between fixed sleeves the loading gap that opening aramid fiber confession turning up forward loads from front to back, internal fixtion cover and/or fixed sleeves are for crimping distortion and in making, the pressure welding case of the aramid fiber turned up described in fixed sleeves clamping.
2. the joints of optical fibre according to claim 1, is characterized in that: have the radial play for optical fibre between the hole wall of the endoporus of described internal fixtion cover and described optical fiber.
3. the joints of optical fibre according to claim 1, is characterized in that: the wall thickness of fixed sleeves is less than the wall thickness of described internal fixtion cover.
4. the joints of optical fibre according to claim 1 ~ 3 any one, it is characterized in that: fixed sturcture comprises the block direction front stopping surface being forward arranged at described sleeve rear end, front stopping surface coordinates with the rear end face block of inside and outside fixed cover and limits inside and outside fixed cover and moves backwards, and fixed sturcture also comprises radially spinning and hold out against screw for what hold out against described fixed sleeves on described sleeve.
5. the joints of optical fibre according to claim 4, it is characterized in that: the rear end varus of sleeve has annular to turn edge, the front end face that described front stopping surface is turned edge by described annular is formed, the rear end face that described annular turns edge forms block direction rear stopping surface backwards, the rear side that sleeve turns edge in described annular is installed with set nut, pushes up the O-ring seal being provided with and being located at for sealing shroud on described optical cable between set nut and rear stopping surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361194.2A CN104991315B (en) | 2015-06-28 | 2015-06-28 | A kind of joints of optical fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361194.2A CN104991315B (en) | 2015-06-28 | 2015-06-28 | A kind of joints of optical fibre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104991315A true CN104991315A (en) | 2015-10-21 |
| CN104991315B CN104991315B (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510361194.2A Active CN104991315B (en) | 2015-06-28 | 2015-06-28 | A kind of joints of optical fibre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104991315B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208610A (en) * | 2020-01-21 | 2020-05-29 | 南京续点通信科技有限公司 | Winding type optical cable fastening device, optical fiber connector and fastening method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363459A (en) * | 1993-01-15 | 1994-11-08 | The Whitaker Corporation | Optical fiber connector including a biasing means in housing |
| CN201210190Y (en) * | 2008-02-25 | 2009-03-18 | 中航光电科技股份有限公司 | Optic cable transmission line deconcentrator and deconcentrating structure using the same |
| CN201229423Y (en) * | 2008-06-23 | 2009-04-29 | 中航光电科技股份有限公司 | Fiber optic cable connector for accessing equipment |
-
2015
- 2015-06-28 CN CN201510361194.2A patent/CN104991315B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5363459A (en) * | 1993-01-15 | 1994-11-08 | The Whitaker Corporation | Optical fiber connector including a biasing means in housing |
| CN201210190Y (en) * | 2008-02-25 | 2009-03-18 | 中航光电科技股份有限公司 | Optic cable transmission line deconcentrator and deconcentrating structure using the same |
| CN201229423Y (en) * | 2008-06-23 | 2009-04-29 | 中航光电科技股份有限公司 | Fiber optic cable connector for accessing equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208610A (en) * | 2020-01-21 | 2020-05-29 | 南京续点通信科技有限公司 | Winding type optical cable fastening device, optical fiber connector and fastening method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104991315B (en) | 2017-03-08 |
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