CN104216069A - Sealing accessory for optical fiber connector and optical fiber connector using sealing accessory - Google Patents
Sealing accessory for optical fiber connector and optical fiber connector using sealing accessory Download PDFInfo
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- CN104216069A CN104216069A CN201410517799.1A CN201410517799A CN104216069A CN 104216069 A CN104216069 A CN 104216069A CN 201410517799 A CN201410517799 A CN 201410517799A CN 104216069 A CN104216069 A CN 104216069A
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- sleeve
- joints
- optical fibre
- bonding cover
- spline
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Abstract
The invention relates to the field of optical connectors, and in particular relates to a sealing accessory for an optical fiber connector and the optical fiber connector using the sealing accessory. The sealing accessory for the optical fiber connector comprises a bonding sleeve, a sleeve and a lock nut, wherein the front end of the sleeve is provided with a thread for being in threaded connection with the shell of the optical connector, the inner wall surface of the sleeve is provided with a stop edge for stopping the bonding sleeve moving backwards, the rear end of the bonding sleeve is provided with a rotation stop section which backwards passes through the stop edge in the sleeve, a rotation preventing sleeve matched with the rotation stop section of the bonding sleeve and a lock sleeve at the same time for stopping rotation is arranged between the lock nut and the sleeve. As the rotation stop section of the bonding sleeve, and the rotation preventing sleeve is arranged between the lock nut and the sleeve, when the sealing accessory is installed to the corresponding optical fiber connector, the rotation preventing sleeve can prevent the bonding sleeve and the sleeve from rotating relatively, and thereby the optical fiber is prevented from being damaged by twisting, and the problem that the existing connector accessory is inconvenient to install is solved.
Description
Technical field
The present invention relates to optical connector field, particularly relate to the joints of optical fibre of a kind of joints of optical fibre encapsulation fitting and use sealing annex.
Background technology
Along with the development of photoelectric technology, optical fiber obtains and applies very widely in the fields such as communication.Along with the continuous expansion of the range of application of optical fiber, in order to adapt to different environments for use, as the joints of optical fibre of the critical piece of fibre junction also just towards diversified trend development, wherein for outdoor, waterproof sealing and the outdoor use multi-fiber connector of tension is exactly the one in all multiple fiber optical connectors.
Under normal circumstances, the tension of the joints of optical fibre and sealing function all realize by corresponding connector fitting.As shown in Figure 1, it comprises optical fiber contact 1, tight tube fiber 2, sleeve 3, bonding cover 4, nut 5, back-up ring 6, rubber sleeve 7 and main cable 8 to the structure of common connector fitting.Sleeve 3 threaded one end connects together with the joints of optical fibre tailing screw flight sealing realized between the joints of optical fibre and sleeve 3, make to realize tension function between main cable 8 and annex together with bonding cover 4 is adhesively fixed with main cable 8, the tight tube fiber 2 that main cable 8 separates is in sleeve 3, optical fiber contact 1 on tight tube fiber 2 is arranged in the housing of the joints of optical fibre in use, rubber sleeve 7 front end and sleeve 3 rear end extrude back-up ring 6 by nut 5, back-up ring 6 extrudes rubber sleeve 7 and is out of shape and jam-packed main cable 8, thus the sealing realized between main cable and joints of optical fibre annex.
Above-mentioned connector fitting can play good tension sealing effectiveness when assembling, but its assemble time but there is following problem: 1) can not prevent between sleeve 3 and bonding cover 4 relatively rotating and axial float: when nut 5 extrude back-up ring 6 rubber sleeve 7 is out of shape time, rubber sleeve 7 can hold main cable 8 tightly, main cable 8 can rotate along with nut 5 and rotate together, simultaneously also along with occurring play between sleeve 3 and bonding cover 4; Bonding cover 4 can be driven when main cable 8 is rotated to rotate, when bonding cover 4 rotates, the tight tube fiber 2 in sleeve 3 can be made to be twisted to together and to cause damage of product; Wear between sleeve 3 and bonding cover 4 and can cause bending increase of tight tube fiber 2 and cause connector decay to increase (can cause damage of product time serious), bonding cover 4 and sleeve 3 are not fitted and joints of optical fibre stretching resistance also can be made influenced on the other hand.2) bonding agent need be increased to ensure sealing function: in actual production, the tolerance of rubber sleeve 7 and main cable 8 is all larger, and be easily out of shape when stressed, main cable 8 often poor effect is sealed by extruding rubber sleeve 7, generally, need to increase bonding agent to realize positiver sealing between main cable 8 outer wall and rubber sleeve 7 inwall.
In sum, there is the problem of installing inconvenience in connector fitting of the prior art.
Summary of the invention
The object of the present invention is to provide a kind of joints of optical fibre encapsulation fitting, to solve the problem that existing connector fitting installs inconvenience.
Meanwhile, the present invention also aims to provide the joints of optical fibre using above-mentioned encapsulation fitting.
In order to solve the problem, joints of optical fibre encapsulation fitting of the present invention is by the following technical solutions: joints of optical fibre encapsulation fitting, comprise bonding cover, sleeve and set nut, the front end of sleeve is provided with the screw thread for being threaded with optical connector housing, the internal face of sleeve is provided with the gear edge for moving after the bonding cover of block, the rear end of bonding cover is provided with spline section, spline section, backward through the gear edge in sleeve, is provided with the rotating prevention sleeve for coordinating with spline section and the lock sleeve spline of bonding cover simultaneously between set nut and sleeve.
Gear in rotating prevention sleeve and sleeve along between be provided with O-ring seal.
Turn edge in the rear end of described set nut has, be provided with protection spring in set nut, protection spring at front end has the disconnecting prevention structure coordinated with the block that turns edge in set nut rear end.
Coordinate with the spline paragraph key of bonding cover inside described rotating prevention sleeve, outside coordinates with sleeve key.
The spline section of sleeve is provided with for described rotating prevention sleeve is compacted to the gland nut of the gear in sleeve along rear side.
The joints of optical fibre are by the following technical solutions: the joints of optical fibre, comprise housing and encapsulation fitting, encapsulation fitting comprises bonding cover, sleeve and set nut, the front end of sleeve is threaded with housing, the internal face of sleeve is provided with the gear edge for moving after the bonding cover of block, the rear end of bonding cover is provided with spline section, and spline section, backward through the gear edge in sleeve, is provided with the rotating prevention sleeve for coordinating with spline section and the lock sleeve spline of bonding cover simultaneously between set nut and sleeve.
Gear in rotating prevention sleeve and sleeve along between be provided with O-ring seal.
Turn edge in the rear end of described set nut has, be provided with protection spring in set nut, protection spring at front end has the disconnecting prevention structure coordinated with the block that turns edge in set nut rear end.
Coordinate with the spline paragraph key of bonding cover inside described rotating prevention sleeve, outside coordinates with sleeve key.
The spline section of sleeve is provided with for described rotating prevention sleeve is compacted to the gland nut of the gear in sleeve along rear side.
Rear end due to described bonding cover is provided with described spline section, spline section is backward through the gear edge of sleeve, and the rotating prevention sleeve be provided with between set nut and sleeve for coordinating with spline section and the lock sleeve spline of bonding cover simultaneously, therefore, when encapsulation fitting is assembled on the corresponding joints of optical fibre, rotating prevention sleeve can avoid bonding cover and the relative rotation between sleeve, optical fiber just can be avoided thus to be twisted bad situation and occur, solves the problem that existing connector fitting installs inconvenience.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing connector fitting;
Fig. 2 is the structural representation of the embodiment of joints of optical fibre encapsulation fitting of the present invention;
Fig. 3 is the cut-open view of the embodiment of joints of optical fibre encapsulation fitting of the present invention;
Fig. 4 is the structural representation of sleeve;
Fig. 5 is the stereographic map of sleeve;
Fig. 6 is the front view (band is analysed and observe) of bonding cover;
Fig. 7 is the left view of bonding cover;
Fig. 8 is the stereographic map of bonding cover;
Fig. 9 is the structural representation of rotating prevention sleeve;
Figure 10 is the stereographic map of rotating prevention sleeve;
Figure 11 is the structural representation of tail seal cover.
Embodiment
The embodiment of joints of optical fibre encapsulation fitting; as shown in figs. 2-11, this joints of optical fibre encapsulation fitting comprises light contact element 11, tight tube fiber 12, sleeve 13, bonding cover 14, O-ring seal 15, rotating prevention sleeve 16, jam-packed nut 17, protection spring 18, set nut 19, main cable 20.
Light contact element 11 is assemblied in the front end of tight tube fiber 12, and in use, light contact element 11 is loaded in corresponding light fiber connector.Tight tube fiber 12 be main cable 20 is connected to light contact element 11 together with, light contact element 11, tight tube fiber 12 and main cable 20 and their connected mode are prior art, and it will not go into details herein.
The front end of sleeve 13 is provided with the screw thread for being connected with the housing of corresponding light fiber connector, and in the present embodiment, the screw thread of sleeve 13 front end is internal thread; In addition, the rear end of sleeve 13 is also provided with external thread, is provided with to projecting inward annular gear along 131 in its endoporus.
Bonding cover 14 has pre-large post-small two parts, this two parts entirety constitutes multidiameter shape, anterior for bonding with the periphery of main cable 20, rear portion constitutes a spline section, be provided with glue groove 141 in the anterior endoporus of wherein bonding cover 14, the sealing to the bonding reliability of main cable 20 and bonding cover 14 and main cable 20 cooperation place can be ensured further by the setting of glue groove 141; The spline section outer peripheral face of bonding cover 14 is provided with spline paragraph key groove 142.After assembling, the step surface formed outside the junction between the front and rear portions of bonding cover 14 coordinates with the leading flank block on gear edge, thus bonding cover 14 can be stoped to move backward.
The spline section that O-ring seal 15 is enclosed within bonding cover 14 is positioned at the rear place of gear along 131, rotating prevention sleeve 16 is enclosed within the spline section of bonding cover 14 equally, it is positioned at the rear side place of O-ring seal 15, rotating prevention sleeve 16 is provided with spline key 22, in the present embodiment, spline key 22 is assemblied on rotating prevention sleeve 16 by hole set on rotating prevention sleeve, and in other embodiments, spline key 22 can also be set to integrative-structure with rotating prevention sleeve 16.Rotating prevention sleeve 16 is coordinated with sleeve keyway 132 set on the spline paragraph key groove 142 in the spline section of bonding cover 14 and sleeve 13 wall respectively by spline key 22, and the spline thus achieved between sleeve 13 with bonding cover 14 coordinates.Jam-packed nut 17 Screw assembly is at the spline section tail end place of bonding cover 14, by precession jam-packed nut 17, the relative locking to bonding cover 14, O-ring seal 15, rotating prevention sleeve 16 can be realized, simultaneously by the gear of O-ring seal 15 jam-packed in sleeve 13 along on the trailing flank of 131, realize being sealed and matched therebetween.
Set nut 19 is assemblied in the tail end of sleeve 13; rear end turns edge in having; protection spring 18 penetrates in set nut 19; its front end has the disconnecting prevention structure coordinated with the block that turns edge in set nut rear end; in the present embodiment, disconnecting prevention structure is formed greatly by being done by the point diameter of protection spring.Protection spring housing is in main cable, and it is for the protection of main cable overbend.
The embodiment of the joints of optical fibre, these joints of optical fibre comprise housing and encapsulation fitting, and the structure of housing is prior art, and as shown in figs. 2-11, identical with the structure of the embodiment of above-mentioned joints of optical fibre encapsulation fitting, it will not go into details herein for the structure of encapsulation fitting.
Claims (10)
1. joints of optical fibre encapsulation fitting, comprise bonding cover, sleeve and set nut, the front end of sleeve is provided with the screw thread for being threaded with optical connector housing, the internal face of sleeve is provided with the gear edge for moving after the bonding cover of block, it is characterized in that, the rear end of bonding cover is provided with spline section, and spline section, backward through the gear edge in sleeve, is provided with the rotating prevention sleeve for coordinating with spline section and the lock sleeve spline of bonding cover simultaneously between set nut and sleeve.
2. joints of optical fibre encapsulation fitting according to claim 1, is characterized in that, the gear in rotating prevention sleeve and sleeve along between be provided with O-ring seal.
3. joints of optical fibre encapsulation fitting according to claim 1; it is characterized in that; turn edge in the rear end of described set nut has, be provided with protection spring in set nut, protection spring at front end has the disconnecting prevention structure coordinated with the block that turns edge in set nut rear end.
4. the joints of optical fibre encapsulation fitting according to any one of claim 1-3, is characterized in that, coordinate with the spline paragraph key of bonding cover inside described rotating prevention sleeve, outside coordinates with sleeve key.
5. the joints of optical fibre encapsulation fitting according to any one of claim 1-3, is characterized in that, the spline section of sleeve is provided with for described rotating prevention sleeve is compacted to the gland nut of the gear in sleeve along rear side.
6. the joints of optical fibre, comprise housing and encapsulation fitting, encapsulation fitting comprises bonding cover, sleeve and set nut, the front end of sleeve is threaded with housing, the internal face of sleeve is provided with the gear edge for moving after the bonding cover of block, it is characterized in that, the rear end of bonding cover is provided with spline section, spline section, backward through the gear edge in sleeve, is provided with the rotating prevention sleeve for coordinating with spline section and the lock sleeve spline of bonding cover simultaneously between set nut and sleeve.
7. the joints of optical fibre according to claim 6, is characterized in that, the gear in rotating prevention sleeve and sleeve along between be provided with O-ring seal.
8. the joints of optical fibre according to claim 6, is characterized in that, turn edge, be provided with protection spring in set nut in the rear end of described set nut has, and protection spring at front end has the disconnecting prevention structure coordinated with the block that turns edge in set nut rear end.
9. the joints of optical fibre according to any one of claim 6-8, is characterized in that, coordinate with the spline paragraph key of bonding cover inside described rotating prevention sleeve, outside coordinates with sleeve key.
10. the joints of optical fibre according to any one of claim 6-8, is characterized in that, the spline section of sleeve is provided with for described rotating prevention sleeve is compacted to the gland nut of the gear in sleeve along rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517799.1A CN104216069B (en) | 2014-09-30 | 2014-09-30 | Joints of optical fibre encapsulation fitting and use the joints of optical fibre of this encapsulation fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517799.1A CN104216069B (en) | 2014-09-30 | 2014-09-30 | Joints of optical fibre encapsulation fitting and use the joints of optical fibre of this encapsulation fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104216069A true CN104216069A (en) | 2014-12-17 |
| CN104216069B CN104216069B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410517799.1A Active CN104216069B (en) | 2014-09-30 | 2014-09-30 | Joints of optical fibre encapsulation fitting and use the joints of optical fibre of this encapsulation fitting |
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| Country | Link |
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| CN (1) | CN104216069B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793304A (en) * | 2015-04-20 | 2015-07-22 | 中国海洋石油总公司 | Method for fixing optical fibers at port of optical cable and optical cable structure |
| CN105375173A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Connector and connector accessory thereof |
| CN105470701A (en) * | 2015-07-31 | 2016-04-06 | 中航光电科技股份有限公司 | Connector and connector accessory |
| CN106067618A (en) * | 2016-05-20 | 2016-11-02 | 中航光电科技股份有限公司 | Outdoor adapter and connector assembly |
| CN114019630A (en) * | 2021-10-22 | 2022-02-08 | 中航光电科技股份有限公司 | High-pressure-bearing structure for fixing optical cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979609Y (en) * | 2006-11-03 | 2007-11-21 | 中航光电科技股份有限公司 | A cable connector for optical communication system in outside base |
| JP2013218103A (en) * | 2012-04-09 | 2013-10-24 | Seikoh Giken Co Ltd | Optical connector plug |
| WO2014050416A1 (en) * | 2012-09-28 | 2014-04-03 | 株式会社ヨコオ | Plug for optical connector, jack for optical connector, and optical connector |
| CN203787636U (en) * | 2014-03-21 | 2014-08-20 | 常州市新盛电器有限公司 | Multifunctional hybrid connector |
-
2014
- 2014-09-30 CN CN201410517799.1A patent/CN104216069B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979609Y (en) * | 2006-11-03 | 2007-11-21 | 中航光电科技股份有限公司 | A cable connector for optical communication system in outside base |
| JP2013218103A (en) * | 2012-04-09 | 2013-10-24 | Seikoh Giken Co Ltd | Optical connector plug |
| WO2014050416A1 (en) * | 2012-09-28 | 2014-04-03 | 株式会社ヨコオ | Plug for optical connector, jack for optical connector, and optical connector |
| CN203787636U (en) * | 2014-03-21 | 2014-08-20 | 常州市新盛电器有限公司 | Multifunctional hybrid connector |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793304A (en) * | 2015-04-20 | 2015-07-22 | 中国海洋石油总公司 | Method for fixing optical fibers at port of optical cable and optical cable structure |
| CN105375173A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Connector and connector accessory thereof |
| CN105470701A (en) * | 2015-07-31 | 2016-04-06 | 中航光电科技股份有限公司 | Connector and connector accessory |
| CN105470701B (en) * | 2015-07-31 | 2018-02-16 | 中航光电科技股份有限公司 | A kind of connector and its connector fitting |
| CN105375173B (en) * | 2015-07-31 | 2018-07-06 | 中航光电科技股份有限公司 | Connector and its connector fitting |
| CN106067618A (en) * | 2016-05-20 | 2016-11-02 | 中航光电科技股份有限公司 | Outdoor adapter and connector assembly |
| CN114019630A (en) * | 2021-10-22 | 2022-02-08 | 中航光电科技股份有限公司 | High-pressure-bearing structure for fixing optical cable |
| CN114019630B (en) * | 2021-10-22 | 2024-01-09 | 中航光电科技股份有限公司 | High pressure-bearing structure for fixing optical cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104216069B (en) | 2016-06-29 |
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