CN104932067A - Connector tail accessory and adhering sleeve - Google Patents
Connector tail accessory and adhering sleeve Download PDFInfo
- Publication number
- CN104932067A CN104932067A CN201510286402.7A CN201510286402A CN104932067A CN 104932067 A CN104932067 A CN 104932067A CN 201510286402 A CN201510286402 A CN 201510286402A CN 104932067 A CN104932067 A CN 104932067A
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- China
- Prior art keywords
- throat structure
- cover
- combined cover
- extension
- optical cable
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- 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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- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention provides a connector tail accessory and an adhering sleeve. The connector tail accessory comprises a combining sleeve which is internally provided with an adhering sleeve which is used for being connected with an outdoor optical cable. The tail part of the combining sleeve is provided with a throat structure and a locking member which is used for enabling the throat structure to radially contract. The rear end of the adhering sleeve is provided with an extension segment which backwardly extends to the throat structure and is used for being matched with the throat structure in a radial direction in an extruding way. The extension segment is internally provided with a channel used for insertion of the outdoor optical cable along a front-and-back direction. The throat structure is enabled to radially contract to be extruded on the extension segment of the adhering sleeve by the locking member in use so that a certain distance is reserved between the rear end of the adhering sleeve and the combining sleeve even a plug and a socket are plugged, the adhering sleeve and the combining sleeve are also maintained to be relatively fixed under the effect of friction force generated by extruding the extension segment via the throat structure, the outdoor optical cable does not backwardly move and the socket and the plug are not separated when the outdoor optical cable is backwardly pulled, and thus connection reliability is guaranteed.
Description
Technical field
The present invention relates to optical field, particularly relate to a kind of tail portion of connector annex and bonding cover.
Background technology
Optical connector part plays a very important role in optical signal transmission process, and the optical connector be connected with interior cables especially for connection external cable is widely used in engineering is registered one's residence at networking.Authorization Notice No. is CN100573213C, authorized announcement date is that the Chinese invention patent on Dec 23rd, 2009 discloses a kind of external fiber optic cable connector, comprise the plug and tail accessory with contact element, tail accessory comprises sealing shroud and set nut, combined cover and bonding cover, sealing shroud is set in the outside of combined cover, the afterbody of sealing shroud and combined cover is equipped with throat structure, the position that outdoor optical cable extends to forward combined cover openend from the afterbody of combined cover is provided with the plug coordinated with socket grafting, outdoor optical cable connects with bonding overlapping stretching into the position in combined cover, the front end of the afterbody throat structure of combined cover is provided with the block step for the bonding cover of block in a rearward direction, when outdoor optical cable receives pulling force backward, block step passes through the spacing tension realizing optical cable of the block of bonding cover.
This external fiber optic cable connector in use, first plug is inserted on socket, the attaching nut of combined cover front end is connected with Socket casing, again sealing shroud is connected with the external thread of combined cover front end forward, make the throat structure of combined cover afterbody shrink and pack tightly outdoor optical cable by the throat structure of sealing shroud afterbody, thus reach the object by combined cover and outdoor optical cable sealing.This external fiber optic cable connector is when reality uses, if by the location comparison of the socket on plug connector rearward, so plug need to Socket casing inside stretch into longer distance with socket grafting, so now again combined cover is connected to after on Socket casing, the rear end of the bonding cover in combined cover likely also has certain distance apart from the block step of combined cover and does not contact with block step, such outdoor optical cable is not just fixed in the axial direction, when being subject to external force backward and pulling, outdoor optical cable can move backward until the rear end of bonding cover contacts with the block step of combined cover, in this section of displacement process, plug and socket has just been separated, cause Joint failure, therefore, this external fiber optic cable connector in use, because outdoor optical cable can not ensure the connection stable with combined cover, and cause plug to be connected insecure problem with socket.
Summary of the invention
The object of the present invention is to provide a kind of tail portion of connector annex, in order to solve prior art outdoor optical cable connector in use bonding cover can not ensure relative fixing and cause the problem of optical cable Joint failure all the time with combined cover; Meanwhile, present invention also offers a kind of bonding cover being applicable to this tail portion of connector annex.
In order to solve the problems of the technologies described above, tail portion of connector annex of the present invention adopts following technical scheme: a kind of tail portion of connector annex, comprise combined cover, the bonding cover for connecting outdoor optical cable is provided with in combined cover, the afterbody of combined cover is provided with throat structure and for making the locking member of throat structure radial shrinkage, the rear end of bonding cover is provided with and extands rearward to described throat structure place and for extruding with throat structure the extension coordinated in radial direction, have the passage inserted along the longitudinal direction for outdoor optical cable in described extension.
The outer peripheral face of described extension is the circular conical surface that reduces gradually of diameter from front to back, or the outer peripheral face of extension is provided with concaveconvex structure.
Described throat structure is provided with guiding by its front end and coordinates section guiding to be slidedly assemblied in combined cover afterbody.
Described throat structure coordinates the rear side of section to be provided with in guiding radially to protrude, block boss for coordinating with the rear end face block of combined cover.
The link position of described throat structure and combined cover is provided with the spline structure stoping throat structure rotation circumferential relative to combined cover.
Described throat structure comprises the contraction pawl that split is arranged and the cushion rubber be inserted in contraction pawl, described guiding coordinates section to be located at the front end of shrinking pawl, the rear end that guiding coordinates section is located at by described block boss, and described spline structure is be located at the end-tooth on combined cover rear end face and block boss respectively.
O-ring seal is provided with between described guiding cooperation section and combined cover.
Bonding cover of the present invention adopts following technical scheme: a kind of bonding cover, comprise bonding cover body, the rear end of described bonding cover body is provided with for extanding rearward to throat structure place and for extruding with throat structure the extension coordinated in radial direction, having the passage inserted along the longitudinal direction for outdoor optical cable in described extension.
The outer peripheral face of described extension is the circular conical surface that reduces gradually of diameter from front to back, or the outer peripheral face of extension is provided with concaveconvex structure.
The rear end of the bonding cover of tail portion of connector annex of the present invention is provided with extension, extension is used for upwardly coordinating with the side of throat structure in radial direction, locking member makes throat structure radial shrinkage and is squeezed on the extension of bonding cover in use, even if at plug, to inserting between the rear end of rear bonding cover and combined cover, also tool is at regular intervals with socket like this, keep relative fixing with combined cover under the effect of the friction force that bonding cover also can produce extruding extension by throat structure, such outdoor optical cable is when being subject to pulling force backward, also can not move backward and socket is separated with plug, ensure that the reliability of connection.
Further, extension outer peripheral face is the circular conical surface that reduces gradually of diameter from front to back, or outer peripheral face is provided with concaveconvex structure, extrudes with throat structure when coordinating in extension like this and can improve friction force, enable outdoor optical cable bear larger pulling force and can not move axially.
Further, spline structure ensures that circumference can not occur between throat structure and combined cover rotates, when throat structure is squeezed on bonding cover extension by locking member, bonding cover also can not and combined cover between there is circumferential relatively rotating, avoid when optical cable rotates and sprain, destroy and connect.
Further, be provided with O-ring seal between the guiding cooperation section of throat structure and combined cover, ensure that the sealing between combined cover and throat structure, improve sealing effectiveness further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of tail portion of connector annex of the present invention.
In figure: 1, optical fiber; 2, combined cover; 20, combined cover end-tooth; 21, O-ring seal; 3, locking member; 31, the section of being threaded; 32, extruding locking section; 4, pawl is shunk; 40, pawl end-tooth is shunk; 41, guiding coordinates section; 5, cushion rubber; 6, bonding cover; 60, injecting glue cavity; 61, extension; 7, outdoor optical cable.
Embodiment
The embodiment one of tail portion of connector annex of the present invention: as shown in Figure 1, the combined cover 2 extended before and after comprising, the cavity extended before and after combined cover inside has, to stretch into before and after outdoor optical cable 7 in this cavity and to be bonded together with bonding cover 6, the front end of bonding cover is connected with plug by optical fiber 1, the front end of bonding cover has injecting glue cavity 60, in this injecting glue cavity, optical fiber and outdoor optical cable can be fixed by injecting glue, the internal cavities of combined cover is the large rear short and small notch cuttype in front end, the cascaded surface of cavity is used for coordinating with the rear end face block of bonding cover avoiding bonding cover and outdoor optical cable to deviate from from the rear end of combined cover, the rear end of bonding cover is also connected with the extension 61 extended back, perforation through before and after being provided with in the middle part of extension, outdoor optical cable can extend in the injecting glue cavity of bonding cover front end from the rear end of extension by this perforation, the rear end tails of combined cover is also provided with throat structure and the locking member for ordering about this throat structure radial shrinkage, extension 61 extends to the outside of whole seal assembly through throat structure and locking member backward, throat structure radial shrinkage can be made by locking member and be clamped on the outer peripheral face of bonding cover extension, reach the object that extension coordinates with throat structure radial compression, so just achieve the waterproof sealing inside and outside combined cover.
In the present embodiment, locking member is set nut 3, set nut comprises the linkage section 31 of front end and the locking section 32 of rear end, the rear end outer peripheral face of combined cover is provided with external thread, the internal thread that linkage section 31 is arranged by inner circumferential surface is threaded with the rear end external thread of combined cover thus realizes the connection with combined cover, the inner peripheral surface of locking section is the taper shape that diminishes gradually of diameter from front to back, when set nut moves forward relative to combined cover by rotating forward, the throat structure extruding combined cover rear end tails gradually by this conical inner peripheral surface just makes throat structure radial shrinkage thus extrudes bonding cover extension.
In the present embodiment, throat structure comprises contraction pawl 4 and the cushion rubber 5 of split setting, shrink pawl 4 and comprise the cylindrical shape guiding cooperation section 41 of front end and the elastic claw of rear end, elastic claw circumference is spaced apart and can shrink near the center of circle simultaneously, the guiding of shrinking pawl front end coordinates the outer peripheral face of section to coincide with the inner peripheral surface of the path section of combined cover cavity and coordinates, guiding coordinates also can at fore-and-aft direction guiding movement in the path section of section Intercalation cover cavity, wherein, combined cover is provided with the annular groove of indent on its guiding mating surface with the guiding section of cooperation, O-ring seal 21 is housed in this annular groove, sealing circle ensure that the slipper seal of shrinking pawl and combined cover support, guiding coordinates the link position of section and elastic claw to be provided with opening annular inserting groove backward, inserting groove is positioned at the inner side of elastic claw, cushion rubber is inserted in this inserting groove, the lateral surface of elastic claw exceeds guiding and coordinates the outer circumference surface of section and form block boss at both link position places, this block boss can coordinate confined shrinkage pawl shift motion forward with the rear end face block of combined cover, block boss is provided with and shrinks pawl end-tooth 40, correspondingly, combined cover end-tooth 20 is provided with in conjunction with his rear end face, shrink pawl end-tooth when shrinking pawl and moving forward relative to combined cover to engage each other with combined cover end-tooth, thus the spline realized in the circumference of contraction pawl and combined cover.
In the present embodiment, the outer peripheral face of the extension of bonding cover is the circular conical surface that diminishes gradually of diameter from front to back, elastic claw and gum cover can be pressed on circular conical surface when radially-inwardly shrinking under the extruding of the locking section of set nut, and to extension, there is the snap-in force before being tilted to, when such outdoor optical cable is subject to pulling force backward, the friction force that this snap-in force and the prevention extension produced due to elastic claw and gum cover radial compression extension move axially can stop outdoor optical cable and bonding cover to move backward, can not relative displacement be there is in what ensure that the outdoor optical cable that is fixed together with bonding cover and combined cover, this just directly avoids outdoor optical cable and bonding cover causes plug and socket mutually to depart from and the problem of Joint failure relative to combined cover generation relative movement.
Tail portion of connector annex of the present invention when mounted, first by plug and socket to inserting, then combined cover is moved forward, and combined cover and Socket casing are linked together, rotating forward set nut makes it move forward relative to combined cover, the locking section of set nut promotes to shrink pawl and moves forward until shrink pawl end-tooth and contact with combined cover end-tooth, now, shrink pawl no longer to move forward, also can not relatively rotate with combined cover simultaneously, continuing to rotate forward set nut makes it move forward, locking section by circular conical surface by elastic claw and its inside cushion rubber radial compression on the extension of bonding cover, thus the sealing realized inside and outside the inside and outside i.e. connector of throat structure, simultaneously under the effect of snap-in force, throat structure and bonding cover can not move axially, also ensure that outdoor optical cable in bonding cover and combined cover can not move axially, tail portion of connector annex of the present invention is when dismantling, reversion set nut makes to be separated from each other between the extension of throat structure and bonding cover, no longer there is snap-in force between the two, now, bonding cover and the outdoor optical cable be connected with it can move axially with combined cover, rotating combined cover makes it be separated with Socket casing, then is pulled up from socket by plug.
The embodiment two of tail portion of connector annex of the present invention: be with the difference of embodiment one, the outer peripheral face of extension is provided with concaveconvex structure, when being pressed on extension under the effect at locking member at elastic claw and cushion rubber, concaveconvex structure can improve the friction force between cushion rubber and extension, and then the maximum pull that raising can bear when keeping and relative displacement does not occur combined cover with the outdoor optical cable that bonding cover is fixed together.
The embodiment three of tail portion of connector annex of the present invention: be with the difference of embodiment one, throat structure only includes elastic claw, the inner side of elastic claw is covered with flexible material.
The embodiment four of tail portion of connector annex of the present invention: be with the difference of embodiment one, the rear end of combined cover is provided with slot, the elastic claw front end of throat structure is plugged on the rear end of combined cover by slot, and realizes circumferential spline between the two and axial block by slot.
The embodiment five of tail portion of connector annex of the present invention: be with the difference of embodiment one, front end and the combined cover of elastic claw are wholely set.
The embodiment six of tail portion of connector annex of the present invention: be with the difference of embodiment one, the inner peripheral surface of the path section of combined cover cavity and guiding coordinate correspondence on the outer peripheral face of section to be provided with keyway, realize shrinking the circumferential spline of pawl and combined cover by filling key in keyway.
The embodiment seven of tail portion of connector annex of the present invention: be with the difference of embodiment one, locking member is lock sleeve, the rear end of lock sleeve has the inner peripheral surface that diameter from front to back reduces gradually, the front end of lock sleeve is provided with the bayonet lock extended radially inwardly from inner peripheral surface, correspondingly, the outer peripheral face of combined cover is provided with the draw-in groove be slidably matched with bayonet lock, extend before and after draw-in groove and be provided with bending in front end, during use by lock sleeve along draw-in groove relative to combined cover driven forward, until rotary locking cover during draw-in groove foremost position place, bayonet lock is made to enter the bending place of draw-in groove, such lock sleeve can not move backward relative to combined cover under the block effect of draw-in groove bending part, contraction pawl also can be pressed on bonding putting by lock sleeve simultaneously.
The embodiment eight of tail portion of connector annex of the present invention: be with the difference of embodiment one, locking member comprises upper and lower symmetrically arranged upper locking member and lower locking member, contraction pawl radial shrinkage can be made when upper and lower locking member is close to each other, relatively away from time contraction pawl radial direction can be made to open, the two ends of upper and lower two locking members are respectively equipped with engaging lug, engaging lug is connected by screw, rotary screw can realize upper and lower locking member close to each other or away from.
The embodiment nine of tail portion of connector annex of the present invention: be with the difference of embodiment one, extension outer peripheral face is provided with the annular tooth that axially spaced-apart is arranged.
Tail portion of connector annex of the present invention achieves the water proof and dust proof sealing inside and outside connector by the cooperation of set nut and throat structure, throat structure extrudes with bonding cover extension the friction force coordinating and be supplied to and stop bonding cover to move axially relative to combined cover simultaneously, make outdoor optical cable and combined cover relative fixing all the time, ensure that the reliability of connection, improve the tensile strength of outdoor optical cable, spline structure is provided with in addition between throat structure and combined cover, spline structure can ensure bonding cover and the outdoor optical cable be fixed in bonding cover relative to combined cover, circumference rotation can not occur, outdoor optical cable and combined cover is avoided to relatively rotate and are sprained by internal optical fiber, improve the twisting strength of outdoor optical cable.
Tail portion of connector accessory structure of the present invention is simple, easy to use, ensure that and the sealing that optical cable connects improves the tension of outdoor optical cable, twisting strength, optical cable is connected safe and reliable.
The embodiment of bonding cover of the present invention: identical with the concrete structure of the bonding cover in the embodiment of above-mentioned tail portion of connector annex, repeats no more herein.
Claims (9)
1. a tail portion of connector annex, comprise combined cover, the bonding cover for connecting outdoor optical cable is provided with in combined cover, the afterbody of combined cover is provided with throat structure and for making the locking member of throat structure radial shrinkage, it is characterized in that, the rear end of bonding cover is provided with and extands rearward to described throat structure place and for extruding with throat structure the extension coordinated in radial direction, have the passage inserted along the longitudinal direction for outdoor optical cable in described extension.
2. tail portion of connector annex according to claim 1, is characterized in that, the outer peripheral face of described extension is the circular conical surface that reduces gradually of diameter from front to back, or the outer peripheral face of extension is provided with concaveconvex structure.
3. tail portion of connector annex according to claim 1 and 2, is characterized in that, described throat structure is provided with guiding by its front end and coordinates section guiding to be slidedly assemblied in combined cover afterbody.
4. tail portion of connector annex according to claim 3, is characterized in that, described throat structure coordinates the rear side of section to be provided with in guiding radially to protrude, block boss for coordinating with the rear end face block of combined cover.
5. tail portion of connector annex according to claim 4, is characterized in that, the link position of described throat structure and combined cover is provided with the spline structure stoping throat structure rotation circumferential relative to combined cover.
6. tail portion of connector annex according to claim 5, it is characterized in that, described throat structure comprises the contraction pawl that split is arranged and the cushion rubber be inserted in contraction pawl, described guiding coordinates section to be located at the front end of shrinking pawl, the rear end that guiding coordinates section is located at by described block boss, and described spline structure is be located at the end-tooth on combined cover rear end face and block boss respectively.
7. tail portion of connector annex according to claim 3, is characterized in that, is provided with O-ring seal between described guiding cooperation section and combined cover.
8. a bonding cover, comprise bonding cover body, it is characterized in that, the rear end of described bonding cover body is provided with for extanding rearward to throat structure place and for extruding with throat structure the extension coordinated in radial direction, having the passage inserted along the longitudinal direction for outdoor optical cable in described extension.
9. bonding cover according to claim 8, is characterized in that, the outer peripheral face of described extension is the circular conical surface that reduces gradually of diameter from front to back, or the outer peripheral face of extension is provided with concaveconvex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286402.7A CN104932067B (en) | 2015-05-30 | 2015-05-30 | A kind of tail portion of connector attachment and bonding set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510286402.7A CN104932067B (en) | 2015-05-30 | 2015-05-30 | A kind of tail portion of connector attachment and bonding set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104932067A true CN104932067A (en) | 2015-09-23 |
| CN104932067B CN104932067B (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510286402.7A Active CN104932067B (en) | 2015-05-30 | 2015-05-30 | A kind of tail portion of connector attachment and bonding set |
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| Country | Link |
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| CN (1) | CN104932067B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742899A (en) * | 2016-03-30 | 2016-07-06 | 中航光电科技股份有限公司 | Tail sealing accessory and connector employing same |
| CN105742878A (en) * | 2016-03-31 | 2016-07-06 | 中航光电科技股份有限公司 | Connector tail accessory and connector employing same |
| CN105870706A (en) * | 2016-03-30 | 2016-08-17 | 中航光电科技股份有限公司 | Connector and tail part sealing attachment thereof |
| CN106249366A (en) * | 2016-07-28 | 2016-12-21 | 中航光电科技股份有限公司 | A kind of adapter with sealing protection function and sealing mechanism thereof |
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| CN101162284A (en) * | 2007-11-29 | 2008-04-16 | 中航光电科技股份有限公司 | External fiber optic cable connector |
| CN201852959U (en) * | 2010-07-31 | 2011-06-01 | 中航光电科技股份有限公司 | Optical fiber connector component and plug thereof |
| CN102207590A (en) * | 2011-06-03 | 2011-10-05 | 中航光电科技股份有限公司 | DLC (Data Link Connector) plug |
| CN104319556A (en) * | 2014-05-22 | 2015-01-28 | 中航光电科技股份有限公司 | Electric connector |
| CN204129272U (en) * | 2014-09-06 | 2015-01-28 | 泰兴市航联电连接器有限公司 | A kind of neutral joints of optical fibre |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101162284A (en) * | 2007-11-29 | 2008-04-16 | 中航光电科技股份有限公司 | External fiber optic cable connector |
| CN201852959U (en) * | 2010-07-31 | 2011-06-01 | 中航光电科技股份有限公司 | Optical fiber connector component and plug thereof |
| CN102207590A (en) * | 2011-06-03 | 2011-10-05 | 中航光电科技股份有限公司 | DLC (Data Link Connector) plug |
| CN104319556A (en) * | 2014-05-22 | 2015-01-28 | 中航光电科技股份有限公司 | Electric connector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742899A (en) * | 2016-03-30 | 2016-07-06 | 中航光电科技股份有限公司 | Tail sealing accessory and connector employing same |
| CN105870706A (en) * | 2016-03-30 | 2016-08-17 | 中航光电科技股份有限公司 | Connector and tail part sealing attachment thereof |
| CN105870706B (en) * | 2016-03-30 | 2019-02-15 | 中航光电科技股份有限公司 | A kind of connector and its tail portion encapsulation fitting |
| CN105742878A (en) * | 2016-03-31 | 2016-07-06 | 中航光电科技股份有限公司 | Connector tail accessory and connector employing same |
| CN106249366A (en) * | 2016-07-28 | 2016-12-21 | 中航光电科技股份有限公司 | A kind of adapter with sealing protection function and sealing mechanism thereof |
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|---|---|
| CN104932067B (en) | 2019-06-11 |
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