CN107884879A - A kind of short formula protective cover of the joints of optical fibre - Google Patents
A kind of short formula protective cover of the joints of optical fibre Download PDFInfo
- Publication number
- CN107884879A CN107884879A CN201711110861.5A CN201711110861A CN107884879A CN 107884879 A CN107884879 A CN 107884879A CN 201711110861 A CN201711110861 A CN 201711110861A CN 107884879 A CN107884879 A CN 107884879A
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- China
- Prior art keywords
- sleeve
- sheath
- endoporus
- extension
- bonding
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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
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A kind of short formula protective cover of the joints of optical fibre.The invention belongs to fiber optic connector design technology, is related to the improvement to the tail part protection cover of the joints of optical fibre.It is characterized in that：Sleeve (1) has a sleeve extension, there is a sleeve annular groove on sleeve extension, there is a bonding collar-shaped groove on bonding set (2), and the head of holding screw (8) enters in bonding collar-shaped groove.Sheath cylindrical section is enclosed on the outside of sleeve extension, and annular boss is located in sleeve annular groove, and the inner bore of step of clamp nut 3 is spacing on the rear end face of the external thread section of sleeve 1 and in clamp nut 3 by dead ring 7.The present invention proposes a kind of short formula protective cover of improved joints of optical fibre, shortens the length of protective cover, is easy to use in the case of space is less；The anti-rotating function of bonding set is added, eliminates disconnected fine risk when optical cable reverses；Improve the sealing effectiveness of afterbody sheath endoporus and optical harness.
Description
Technical field
The invention belongs to fiber optic connector design technology, is related to the improvement to the tail part protection cover of the joints of optical fibre.
Background technology
Fig. 1 is a kind of structural representation of current tail part protection cover.It includes sleeve 1, bonding covers 2, clamp nut 3,
Gland 4, sheath 5 and fibre bundle 6；There is external screw thread at the rear portion of sleeve 1, and the internal thread of the front end of clamp nut 3 is screwed in the outer spiral shell of sleeve 1
On line, the front end of sheath 5 is located in the endoporus of clamp nut 3, has a circular orientation convex on the outer surface of the front end of sheath 5
Platform, gland 4 are located at behind circular orientation boss, and gland 4 and circular orientation boss are pressed on into sleeve 1 by clamp nut 3
Rear end face on.The front end of bonding 2 fibre bundle 6 in the rear portion of the endoporus of sleeve 1, sleeve 1 of set puts in the interior of bonding set 2
Hole, optical fiber in fibre bundle 6 are connected as entirety by being glued with Nian Jie 2 endoporus of covering.Its shortcoming is：The joints of optical fibre connect
The length of device protective cover is longer, is not easy to use in the case of space is less；The bonding set of protective cover is without anti-rotating function, optical cable
Fine risk of breaking during torsion be present；Afterbody sheath endoporus coordinates with optical harness for gap, and product hermeticity can be bad.
The content of the invention
The purpose of the present invention is：A kind of short formula protective cover of improved joints of optical fibre is proposed, to shorten protective cover
Length, it is easy to use in the case of space is less；The anti-rotating function of increase bonding set, eliminates disconnected fine wind when optical cable reverses
Danger；Improve the sealing effectiveness of afterbody sheath endoporus and optical harness.
The technical scheme is that：A kind of short formula protective cover of joints of optical fibre, including sleeve 1, bonding set 2, fastening
Nut 3, sheath 5 and fibre bundle 6；There is external screw thread at the rear portion of sleeve 1, and the internal thread of the front end of clamp nut 3 is screwed in the outer spiral shell of sleeve 1
On line, the front end of sheath 5 is located in the endoporus of clamp nut 3, bonding 2 light in the rear portion of the endoporus of sleeve 1, sleeve 1 of set
The front end of fine beam 6, which is put in, is bonded the endoporus for covering 2, and the optical fiber in fibre bundle 6 is connected as whole by splicing with the endoporus of Nian Jie set 2
Body；It is characterized in that：
There is a sleeve extension behind the external thread section of sleeve 1, the external diameter of sleeve extension is less than external thread section
The core diameter of thread, there is a sleeve annular groove on sleeve extension, there is at least two to be uniformly distributed along the circumference behind sleeve annular groove
Radial screw bore；There is a bonding collar-shaped groove on the external cylindrical surface of bonding set 2, close to the position of rear end；Bonding set 2
Rear portion is located in the endoporus of sleeve extension, and holding screw 8 is screwed into the radial screw bore on sleeve extension, holding screw 8
Head enter bonding collar-shaped groove in, will be bonded set 2 position locking；
There is a nut extension behind clamp nut 3, the endoporus of nut extension is the step that front is big, back is small
Hole；There is a sheath cylindrical section front portion of sheath 5, and the aperture of sheath cylindrical section endoporus is identical with the external diameter of sleeve extension,
There is the annular boss of a convex front end of sheath cylindrical section endoporus, and the sheath cylindrical section of sheath 5 is enclosed on the outer of sleeve extension
Face, the annular boss of sheath cylindrical section front end are located in sleeve annular groove, and dead ring 7 is a bushing, and dead ring 7 is enclosed on sheath
The outside of cylindrical section, dead ring 7 are located in the preceding sector hole of nut extension endoporus, and the inner bore of step of clamp nut 3 limits dead ring 7
Position avoids dead ring 7 from deviating from the rear end face of the external thread section of sleeve 1 and in clamp nut 3.
It is an advantage of the invention that：A kind of short formula protective cover of improved joints of optical fibre is proposed, shortens protective cover
Length, it is easy to use in the case of space is less；The anti-rotating function of bonding set is added, eliminates disconnected fine wind when optical cable reverses
Danger；Improve the sealing effectiveness of afterbody sheath endoporus and optical harness.
Brief description of the drawings
Fig. 1 is a kind of structural representation of current tail part protection cover.Left is front in figure, and right is rear.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is Fig. 2 parts K enlarged drawing.
Fig. 4 is Fig. 2 A-A sectional views.
Embodiment
The present invention is described in further details below.Referring to Fig. 2 to Fig. 4, a kind of short formula protective cover of joints of optical fibre,
Including sleeve 1, bonding set 2, clamp nut 3, sheath 5 and fibre bundle 6；There are external screw thread, the front end of clamp nut 3 in the rear portion of sleeve 1
Internal thread be screwed on the external screw thread of sleeve 1, the inner bore of step of clamp nut 3 is spacing after the external thread section of sleeve 1 by dead ring 7
On end face and in clamp nut 3, the front end of sheath 5 is located in the endoporus of clamp nut 3, after bonding set 2 is located at the endoporus of sleeve 1
Portion, the front end of the fibre bundle 6 in sleeve 1 put in the endoporus of bonding set 2, and the optical fiber in fibre bundle 6 passes through to be glued covers 2 with Nian Jie
Endoporus be connected as entirety；It is characterized in that：
There is a sleeve extension behind the external thread section of sleeve 1, the external diameter of sleeve extension is less than external thread section
The core diameter of thread, there is a sleeve annular groove on sleeve extension, there is at least two to be uniformly distributed along the circumference behind sleeve annular groove
Radial screw bore；There is a bonding collar-shaped groove on the external cylindrical surface of bonding set 2, close to the position of rear end；Bonding set 2
Rear portion is located in the endoporus of sleeve extension, and holding screw 8 is screwed into the radial screw bore on sleeve extension, holding screw 8
Head enter bonding collar-shaped groove in, will be bonded set 2 position locking；
There is a nut extension behind clamp nut 3, the endoporus of nut extension is the step that front is big, back is small
Hole；There is a sheath cylindrical section front portion of sheath 5, and the aperture of sheath cylindrical section endoporus is identical with the external diameter of sleeve extension,
There is the annular boss of a convex front end of sheath cylindrical section endoporus, and the sheath cylindrical section of sheath 5 is enclosed on the outer of sleeve extension
Face, the annular boss of sheath cylindrical section front end are located in sleeve annular groove, and dead ring 7 is a bushing, and dead ring 7 is enclosed on sheath
The outside of cylindrical section, dead ring 7 are located in the preceding sector hole of nut extension endoporus, and the inner bore of step of clamp nut 3 limits dead ring 7
Position avoids dead ring 7 from deviating from the rear end face of the external thread section of sleeve 1 and in clamp nut 3.
In order to improve sealing property, the endoporus front end annular boss of sheath 5 is with sleeve annular groove using interference fit, sheath 5
Annular convex rib and fibre bundle 6 be using being interference fitted at aperture front end three, and dead ring the last 7 is enclosed on the outside of the cylindrical section of sheath 5, and
Fluid sealant is coated with the contact surface of sleeve 1 and sheath 5.
Annular boss is interference fit with sleeve annular groove；There is an annular convex rib at three the aperture front end of sheath 5, convex annular at three
Muscle is interference fit with fibre bundle 6
One embodiment of the present of invention, there is 4 radial screw bores being uniformly distributed along the circumference behind sleeve annular groove, 4
The head of holding screw 8 enters in bonding collar-shaped groove, and the position for being bonded set 2 is locked, and effectively prevent turning for bonding set 2
It is dynamic.
Claims (3)
1. a kind of short formula protective cover of joints of optical fibre, including sleeve (1), bonding set (2), clamp nut (3), sheath (5) and
Fibre bundle (6)；There is external screw thread at the rear portion of sleeve (1), and the internal thread of clamp nut (3) front end is screwed on the external screw thread of sleeve (1),
The front end of sheath (5) is located in the endoporus of clamp nut (3), and bonding set (2) is located at the rear portion of sleeve (1) endoporus, and sleeve (1) is interior
The front end of fibre bundle (6) put in the endoporus of bonding set (2), the optical fiber in fibre bundle (6) is by being glued and Nian Jie cover (2)
Endoporus is connected as entirety；It is characterized in that：
There is a sleeve extension behind sleeve (1) external thread section, the external diameter of sleeve extension is less than the spiral shell of external thread section
Line bottom footpath, there is a sleeve annular groove on sleeve extension, there is what at least two was uniformly distributed along the circumference behind sleeve annular groove
Radial screw bore；There is a bonding collar-shaped groove on the external cylindrical surface of bonding set (2), close to the position of rear end；Bonding set (2)
Rear portion be located in the endoporus of sleeve extension, holding screw (8) is screwed into the radial screw bore on sleeve extension, clamp screw
The head for following closely (8) enters in bonding collar-shaped groove, and the position for being bonded set (2) is locked；
There is a nut extension behind clamp nut (3), the endoporus of nut extension is the step that front is big, back is small
Hole；There is a sheath cylindrical section front portion of sheath (5), and the aperture of sheath cylindrical section endoporus is identical with the external diameter of sleeve extension,
There is the annular boss of a convex in the front end of sheath cylindrical section endoporus, the sheath cylindrical section of sheath (5) is enclosed on sleeve extension
Outside, the annular boss of sheath cylindrical section front end is located in sleeve annular groove；Dead ring (7) is a bushing, dead ring (7)
The outside of sheath cylindrical section is enclosed on, dead ring (7) is located in the preceding sector hole of nut extension endoporus, the inner bore of step of clamp nut 3
Dead ring 7 is spacing on the rear end face of the external thread section of sleeve 1 and in clamp nut 3, avoid dead ring 7 from deviating from.
2. the short formula protective cover of the joints of optical fibre according to claim 1, it is characterised in that：In sleeve (1) and sheath (5)
Contact surface on be coated with fluid sealant.
3. the short formula protective cover of the joints of optical fibre according to claim 1 or 2, it is characterised in that：Described annular boss
It is interference fit with sleeve annular groove；There is an annular convex rib at three the aperture front end of sheath 5, and annular convex rib was with fibre bundle 6 at three
It is full of cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110861.5A CN107884879B (en) | 2017-11-10 | 2017-11-10 | A kind of short formula protective cover of optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110861.5A CN107884879B (en) | 2017-11-10 | 2017-11-10 | A kind of short formula protective cover of optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107884879A true CN107884879A (en) | 2018-04-06 |
| CN107884879B CN107884879B (en) | 2019-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711110861.5A Active CN107884879B (en) | 2017-11-10 | 2017-11-10 | A kind of short formula protective cover of optical fiber connector |
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| Country | Link |
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| CN (1) | CN107884879B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10845542B1 (en) | 2019-08-19 | 2020-11-24 | Afl Telecommunications Llc | Cable node transition assemblies |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214731A (en) * | 1991-12-20 | 1993-05-25 | Foxconn International, Inc. | Optical fiber connector assembly with simple ferrule assembly mechanism for easy assembling |
| JP2007121954A (en) * | 2005-10-31 | 2007-05-17 | Sumitomo Electric Ind Ltd | Optical connector |
| CN202693852U (en) * | 2012-07-18 | 2013-01-23 | 九江精达检测技术有限公司 | Precise adjusting device for implementing single-way optical fiber rotating connector |
| CN202815271U (en) * | 2012-07-10 | 2013-03-20 | 宁波吉品科技股份有限公司 | Optical fiber connector |
-
2017
- 2017-11-10 CN CN201711110861.5A patent/CN107884879B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214731A (en) * | 1991-12-20 | 1993-05-25 | Foxconn International, Inc. | Optical fiber connector assembly with simple ferrule assembly mechanism for easy assembling |
| JP2007121954A (en) * | 2005-10-31 | 2007-05-17 | Sumitomo Electric Ind Ltd | Optical connector |
| CN202815271U (en) * | 2012-07-10 | 2013-03-20 | 宁波吉品科技股份有限公司 | Optical fiber connector |
| CN202693852U (en) * | 2012-07-18 | 2013-01-23 | 九江精达检测技术有限公司 | Precise adjusting device for implementing single-way optical fiber rotating connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10845542B1 (en) | 2019-08-19 | 2020-11-24 | Afl Telecommunications Llc | Cable node transition assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107884879B (en) | 2019-05-21 |
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