CN206975271U - A kind of termination connecting line of optical fiber communication line - Google Patents
A kind of termination connecting line of optical fiber communication line Download PDFInfo
- Publication number
- CN206975271U CN206975271U CN201720908683.XU CN201720908683U CN206975271U CN 206975271 U CN206975271 U CN 206975271U CN 201720908683 U CN201720908683 U CN 201720908683U CN 206975271 U CN206975271 U CN 206975271U
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- China
- Prior art keywords
- lock pin
- sleeve
- optical fiber
- outer frame
- frame set
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Abstract
Technical field of communication equipment is the utility model is related to, discloses a kind of termination connecting line of optical fiber communication line, including outer frame set, tail sleeve and the optical fiber inside tail sleeve, one end outer cover of the tail sleeve is provided with nut；Lock pin sleeve is arranged with the outer frame set, slides the lock pin for being provided with T-shaped shape in lock pin sleeve, and the center of lock pin offers diameter and fibre diameter identical hole；The T-shaped end of the lock pin and the fit inside of lock pin sleeve, the bottom of lock pin sleeve is stretched out in the other end and the end is fixed with collimation lens；The ejector sleeve for being provided with T-shaped shape, the T-shaped end of ejector sleeve and the fit inside of lock pin sleeve are slided in the lock pin sleeve and is arranged with spring and catch successively thereon, the other end and tail sleeve pivot bush unit；The optical fiber is through being fixed in the hole of lock pin inside ejector sleeve, and the processing technology that solves existing optical patchcord is complicated, high power transmission reliability is relatively low, short life and easily dirty the problem of burning out.
Description
Technical field
The technical field of communication equipment is the utility model is related to, in particular it relates to a kind of termination connection of optical fiber communication line
Line.
Background technology
Optical patchcord (the also known as joints of optical fibre) is the fibre-optical splice for accessing optical module, for realizing that light path is flexibly connected,
English name is Optical Fiber Patch Cable, similar with coaxial cable, simply no mesh shields layer, and center is
The glass core of light propagation, optical patchcord are used for doing slave unit to the jumper of optical fiber cloth wired link, have thicker protective layer, typically
Connection between optical transmitter and receiver and termination box.
Optical patchcord is similar with coaxial cable, simply no mesh shields layer.Center is the glass core of light propagation.In multimode
In optical fiber, the diameter of core is 50 μm~65 μm, substantially suitable with the thickness of the hair of people.And a diameter of 8 μm of single-mode optics fibre core
~10 μm.Core surrounded one layer of refractive index bulb envelope lower than core, so that optical fiber is maintained at in-core.Outside is one again
The thin plastic wrapper of layer, for protecting big envelope.
Existing optical patchcord typically just carries out assembling processing when dispatching from the factory, it is impossible to dismounting assembling is carried out, if entering
When row fibre circuit connects, the axiality of the device such as the lock pin of traditional optical patchcord, lock pin sleeve, nut will reach very
High precision could meet interchangeable requirement, and difficulty of processing is larger, it is necessary to using ultrahigh precision mold or mechanical processing technique
Make, cost is higher.Secondly, traditional optical patchcord is used in fiber optic communication, and transmission is all low power light, general to use
Glue fixes optical fiber, and optical fiber is concordant with insertion core end face, after high power transmission, because glue thermal diffusivity is poor, at optical fiber head
In the part light energy that spills can not distribute and cause to burn out optical fiber, short life relatively low for high power transmission reliability.
On the other hand, existing optical fiber directly it is exposed in atmosphere, if having small dust in fiber end face or dirty will burn out light
It is fine.
Utility model content
In order to solve the above technical problems, the termination connecting line that the utility model provides a kind of optical fiber communication line is carried with reaching
Assembling processing efficiency, the purpose for improving the reliability of high power transmission and increasing the service life of optical patchcord are risen, is solved
The processing technology of existing optical patchcord is complicated, high power transmission reliability is relatively low, short life and easily dirty the problem of burning out.
In order to realize above-mentioned technique effect, technical scheme provided by the utility model is：A kind of end of optical fiber communication line
Head connecting line, it is characterised in that including outer frame set, tail sleeve and the optical fiber inside tail sleeve, outside one end of the tail sleeve
It is arranged with nut, the threaded one end connection of nut and outer frame set；Be arranged with the outer frame set lock pin sleeve of one end open and
The end of lock pin sleeve is against in outer frame set, the lock pin for being provided with T-shaped shape is slided in lock pin sleeve, and the center of lock pin offers
Diameter and fibre diameter identical hole；The T-shaped end of the lock pin and the fit inside of lock pin sleeve, the other end are stretched out
The bottom of lock pin sleeve and the end open up fluted, and collimation lens is fixed with groove；Slide and set in the lock pin sleeve
Have the ejector sleeve of T-shaped shape, the T-shaped end of ejector sleeve and the fit inside of lock pin sleeve and between the end and the end of tail sleeve according to
It is secondary to be arranged with spring and catch, the other end and tail sleeve pivot bush unit；The optical fiber passes through the hole that lock pin is fixed on inside ejector sleeve
Interior, fiber end face is centrally located at the focal point of the collimation lens.
Further, it is provided with the first projection along its centerline direction in the side wall of the lock pin sleeve；The outer frame set
Inwall is provided with the first chute to match with the first projection.
Further, the T-shaped end sidewalls of the lock pin are provided with multiple second projections, on the madial wall of lock pin sleeve
It is corresponding to offer multiple the second chutes to match with the second projection.
Further, second projection is provided with four and is uniformly distributed in the T-shaped end sidewalls of lock pin.
Further, seal washer is arranged with the nut, the surface of seal washer and the end face of outer frame set match.
Further, described collimation lens is plane for one side, and another side is aspherical lens.
Further, the high temperature glue or glass solder that the optical fiber matches by using refractive index and optical fiber are fixed on slotting
In the hole of core.
Further, the diameter of the catch is less than the diameter of bore of lock pin sleeve.
Compared to prior art, the beneficial effects of the utility model are：
During 1. the utility model is tightened by way of being connected through a screw thread between nut and outer frame set, tail sleeve will
Lock pin is pushed against in lock pin sleeve by spring, the end of lock pin sleeve is then pushed against inside outer frame set, in addition, lock pin and insert
Location structure is equipped with core retainer plate cylinder, it is achieved thereby that lock pin and outer frame set accurate and being fastenedly connected, whole assembling process letter
Single, assembly precision height is to ensure the transmission reliability of optical patchcord；
2. optical patchcord used by the application, on the one hand, by the optical fiber seal of optical patchcord in the hole inside lock pin,
In the case that light on collimation lens relatively disperses, the influence of minute dust is smaller；On the other hand, the connection of this structure
Place is provided with seal washer, can prevent dust from entering the inside of optical patchcord, the above can ensure the service life of optical patchcord.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the termination connecting line of optical fiber communication line provided by the utility model；
Fig. 2 be optical fiber communication line provided by the utility model termination connecting line in lock pin schematic top plan view.
Embodiment
The utility model is further described in detail with reference to specific embodiment, following word is intended to indicate that
The utility model, and unrestricted the scope of protection of the utility model.
As shown in Figure 1 and Figure 2, the utility model can be implemented as follows, a kind of termination connection of order wire of optical fiber 4
Line, including outer frame set 1, tail sleeve 2 and the optical fiber 4 inside tail sleeve 2, one end outer cover of the tail sleeve 2 are provided with nut 3,
Nut 3 is connected with the threaded one end of outer frame set 1, and the end of outer frame set 1 is provided with external screw thread, and internal thread is provided with nut 3；It is described outer
The end of the sleeve 5 of lock pin 6 and the sleeve 5 of lock pin 6 that are arranged with one end open in frame set 1 is against in outer frame set 1, is set in outer frame set 1
There is shoulder hole, the external diameter of the wherein internal diameter of large diameter hole and the sleeve 5 of lock pin 6 matches；Slide and be provided with the lock pin sleeve 5
The lock pin 6 of T-shaped shape, and the center of lock pin 6 offers diameter and the diameter identical hole 13 of optical fiber 4；The T-shaped end of the lock pin 6
Portion and the fit inside of lock pin sleeve 5 (can be assembled to the inside of lock pin sleeve 5 and on the axis direction of lock pin sleeve 5
Slide), the bottom (i.e. in the small diameter bore of outer frame set) of lock pin sleeve 5 is stretched out in the other end and the end offer it is recessed
Groove, collimation lens 7 is fixed with groove；The ejector sleeve 8 for being provided with T-shaped shape, the T-shaped end of ejector sleeve 8 are slided in the lock pin sleeve 5
Spring 9 and catch 10, bullet are arranged with successively between the fit inside of portion and lock pin sleeve 5 and the end and the end of tail sleeve 2
Spring 9 and catch 10 are enclosed on the lateral wall of ejector sleeve 8, the other end and the pivot bush unit of tail sleeve 2, are offered and the phase of ejector sleeve 8 in tail sleeve 2
The slide opening of matching；The optical fiber 4 passes through to be fixed in the hole 13 of lock pin 6 inside ejector sleeve 8, and the end of lock pin 6 is stretched out in the end of optical fiber 4
Groove floor distance be 2mm-5mm, the end face of optical fiber 4 is centrally located at the focal point of the collimation lens 7, in collimation lens 7
On light it is relatively scattered, the influence of minute dust is smaller.
In the side wall of the lock pin sleeve 5 the first projection is provided with along its centerline direction；Set on the inwall of the outer frame set 1
There is the first chute to match with the first projection；When lock pin sleeve 5 is inserted into 1 inside of outer frame set, pinpoint work is played
With.
The T-shaped end sidewalls of the lock pin 6 are provided with multiple second projections, are correspondingly opened on the madial wall of lock pin sleeve 5
Provided with multiple the second chutes to match with the second projection；Second projection is provided with four and is uniformly distributed in the T words of lock pin 6
In shape end sidewalls；When lock pin 6 is inserted into the inside of lock pin sleeve 5, pinpoint effect can be arrived, and prevents the phase of lock pin 6
Rotated for lock pin sleeve 5, avoid having influence on the stability of optical fiber 4, ensure the reliability of power transmission.
Seal washer 11 is arranged with the nut 3, the surface and the end face of outer frame set 1 of seal washer 11 match, when
The inner face of nut 3 is during gradually the end face of outer frame set 1 is pushed against, and seal washer 11 is sealed nut 3, and tail sleeve 2
End and the inwall of outer frame set 1 match, the internal diameter of seal washer 11 is enclosed on the end of tail sleeve 2, it is more preferable so as to realize
Sealing property.
Described collimation lens 7 is plane for one side, and another side is aspherical lens, and its collimating mirror is used in light beam biography
In delivery system, to maintain the collimation of the light beam between laserresonator and focusing optic；The optical fiber 4 is by using refraction
The high temperature glue or glass solder that rate and optical fiber 4 match are fixed in the hole of lock pin 6, to ensure the stability of optical fiber 4.
It is preferred that the diameter of the catch 10 is less than the diameter of bore of lock pin sleeve 5, to ensure tail sleeve in movement
When promote catch 10, catch 10 can be slidably reciprocated in the inside of lock pin sleeve 5 to push against spring 9, and spring 9 promotes lock pin 6
It is pushed against the bottom of lock pin sleeve 5.
Any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with right
It is required that described protection domain is defined.
Claims (8)
1. the termination connecting line of a kind of optical fiber communication line, it is characterised in that including outer frame set, tail sleeve and inside tail sleeve
Optical fiber, one end outer cover of the tail sleeve are provided with nut, the threaded one end connection of nut and outer frame set；It is arranged in the outer frame set
There is the lock pin sleeve of one end open and the end of lock pin sleeve is against in outer frame set, slided in lock pin sleeve and be provided with T-shaped shape
Lock pin, and the center of lock pin offers diameter and fibre diameter identical hole；The T-shaped end of the lock pin and lock pin sleeve
Fit inside, the bottom of lock pin sleeve is stretched out in the other end and the end opens up fluted, and collimation lens is fixed with groove；
The ejector sleeve for being provided with T-shaped shape, the T-shaped end of ejector sleeve and the fit inside of lock pin sleeve are slided in the lock pin sleeve and is somebody's turn to do
Spring and catch, the other end and tail sleeve pivot bush unit are arranged between end and the end of tail sleeve successively；The optical fiber passes through
It is fixed on inside ejector sleeve in the hole of lock pin, fiber end face is centrally located at the focal point of the collimation lens.
2. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that the side wall of the lock pin sleeve
On along its centerline direction be provided with the first projection；The inwall of the outer frame set is provided with first to match with the first projection and slided
Groove.
3. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that the T-shaped end of the lock pin
Portion's side wall is provided with multiple second projections, correspondingly offered on the madial wall of lock pin sleeve it is multiple match with the second projection the
Two chutes.
4. the termination connecting line of optical fiber communication line according to claim 3, it is characterised in that second projection is provided with four
It is individual and be uniformly distributed in the T-shaped end sidewalls of lock pin.
5. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that be arranged with the nut close
Seal washer, the surface of seal washer and the end face of outer frame set match.
6. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that described collimation lens is one
Face is plane, and another side is aspherical lens.
7. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that the optical fiber is by using refraction
The high temperature glue or glass solder that rate and optical fiber match are fixed in the hole of lock pin.
8. the termination connecting line of optical fiber communication line according to claim 1, it is characterised in that the diameter of the catch is less than
The diameter of bore of lock pin sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720908683.XU CN206975271U (en) | 2017-07-25 | 2017-07-25 | A kind of termination connecting line of optical fiber communication line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720908683.XU CN206975271U (en) | 2017-07-25 | 2017-07-25 | A kind of termination connecting line of optical fiber communication line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975271U true CN206975271U (en) | 2018-02-06 |
Family
ID=61397347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720908683.XU Expired - Fee Related CN206975271U (en) | 2017-07-25 | 2017-07-25 | A kind of termination connecting line of optical fiber communication line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206975271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399138A (en) * | 2020-06-05 | 2020-07-10 | 苏州长光华芯光电技术有限公司 | Optical fiber coupling heat radiation structure and optical fiber input head |
-
2017
- 2017-07-25 CN CN201720908683.XU patent/CN206975271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399138A (en) * | 2020-06-05 | 2020-07-10 | 苏州长光华芯光电技术有限公司 | Optical fiber coupling heat radiation structure and optical fiber input head |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20180725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |