CN201035189Y - Neutral connector of mobile optical cable - Google Patents
Neutral connector of mobile optical cable Download PDFInfo
- Publication number
- CN201035189Y CN201035189Y CNU2007200689664U CN200720068966U CN201035189Y CN 201035189 Y CN201035189 Y CN 201035189Y CN U2007200689664 U CNU2007200689664 U CN U2007200689664U CN 200720068966 U CN200720068966 U CN 200720068966U CN 201035189 Y CN201035189 Y CN 201035189Y
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- connector
- sheath
- screw socket
- socket cover
- pedestal
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Abstract
The utility model provides a moving optical cable neutral connector. The utility model comprises a base which has a round cross section, the upper semicircle of the base front-end plane is a projecting part protruded with the shape of semicircular cylinder, the projecting part comprises a guide groove and at least one ceramic casing; the lower semicircle of the base front-end plane has a guide contact pin and at least one core-insert therein. The core-insert and the ceramic casing have same number and are symmetrical to each other relative to the diameter mirror image between the upper semicircle and the lower semicircle. The guide groove and the guide contact pin are also symmetrical to each other relative to the diameter mirror image. The connector also comprises a sheath which is arranged at the outside of the base, the head of the sheath is provided with an outside thread; and a screw head cover which is arranged at the front end of the base for packaging the sheath. The screw head cover is used for making the connector coupled with the other connector, moreover, the screw can move along the axial direction of the base. The device can realize the genuine fast blind placement, satisfy the multiple core isomorphism and improve the sealing.
Description
Technical field
The utility model relates to the optical connector in the fiber optic communication field, relates in particular to the neutral connector of a kind of mobile optical cable.
Background technology
For the optical cable connection request of the mobile optical cable access device of developments such as commercial signal communication system such as relief cable communication, the transmission of television relay optical cable and military open-air optical cable communication system is a mobility strong, compatible good, convenient, reliable, durable.In this field, maneuverability represents that fiber cable joint need adopt the mode of flexible connection, compatibility refers to that both being suitable for single mode fiber cable with a kind of connector also is suitable for multimode optical cable, convenience refers to that optical connector can be connected on the identical connector and need not consider the negative and positive of connector, realize nonpolarity connection (promptly neutral the connection), reliability refers to and can use in the rugged surroundings in the open air that durability refers to that connector construction has mechanical propertys such as good resistance to compression, tension.
Existing a kind of open-air optical connector that adopts neutral bayonet type locking mechanism.Its characteristics are:
A. cooperate the location by an outstanding contact pin and a jack.Because this connector needs with the naked eye to help to make contact pin to insert jack when connecting, two location difficulty, no feel when connecting can not reach real blind inserting;
B. after making above-mentioned contact pin and jack cooperate the location,, and, make rotate to an angle relative of support of connector separately, utilize the concavo-convex bayonet coupling of cutting sth. askew of shell with shell with its shell reverse direction rotation with both firmly push-tights in opposite directions.The shortcoming of this structure is: i) volume is big, and capacity is little, and same structure multicore extendability is poor; The push-tight of ii) requiring great effort is rotation also, and is clumsy dumb; Iii) have the gap because of pedestal and shell relatively rotate, so water inlet easily, sealing is poor.
C. adopt the grafting and the align structures of two kinds of optical fiber ceramic lock pins and porcelain bushing in the common this connector.The end of lock pin tailstock has a discoid sheet copper positioning reed in a kind of structure, material thickness by plate-like reed edge behind lock pin and tailstock embedding connector base corresponding aperture position thereof had both kept sleeve pipe to the rocking property in the calibration process of lock pin, made every effort to reach damping and amortization again.Porcelain bushing directly pushes the connector base corresponding aperture in the another kind of structure.The former shortcoming is: for satisfying the requirement that lock pin can move calibration partially, and only depend on the material thickness at plate-like reed edge and hole wall to produce support, and its anchorage force instability, lock pin and sleeve pipe are easy to make the lock pin retraction when pegging graft, two butt joint lock pins produce the gap, cause optical loss to increase.And the latter's shortcoming is that grafting makes porcelain bushing cracked easily, causes optical loss to increase severely.
Summary of the invention
The purpose of this utility model is to provide a kind of can realize the real quick blind neutral connector of mobile optical cable of inserting, satisfying the multicore isomorphism, improve sealing.In addition, when lock pin and sleeve pipe grafting, both satisfied the folding of ceramic " C " type pipe box and shunk the requirement that can move calibration to lock pin partially, lock pin can not bounce back again and produce the gap optical loss, the easily cracked situation of porcelain bushing when connector of the present utility model can also improve the connector grafting simultaneously.
Therefore, the utility model has disclosed the neutral connector of a kind of mobile optical cable, it comprises: xsect is circular pedestal, the upper semi-circle of its preceding transverse plane is a teat that protrudes with semi-cylindrical form, this teat comprises gathering sill and at least one porcelain bushing, and the lower half circle of its preceding transverse plane partly comprises guide pin and at least one lock pin that is arranged at wherein.The quantity of lock pin and porcelain bushing equates and with respect to the diameter mirror image symmetry between upper semi-circle and the lower half circle.Gathering sill and guide pin are also with respect to above-mentioned diameter mirror image symmetry.This connector also comprises the sheath of the outside of being fixed in pedestal, and its head end has external thread, and is arranged at the front end of pedestal and coats the screw socket cover of sheath.This screw socket cover is used to make connector and the coupling of another connector, and in addition, the screw socket cover can be along the axial activity of pedestal.
More specifically, in the neutral connector of above-mentioned moving fiber, the rear side outer wall of sheath is provided with a protruding key, and the front side outer wall of sheath is provided with external thread.The inwall of screw socket cover is provided with an internal keyway, and the front side inwall of screw socket cover is provided with internal thread.The screw socket cover can be by making internal keyway and protruding key screens to pusher, thereby sheath and screw socket cover can not rotate mutually, makes that the sheath of a connector and the screw socket cover of another connector can screw mutually when two connectors dock.
In addition, the neutral connector of above-mentioned moving fiber comprises that also the front end that can be placed in the screw socket cover is to cover the lid of pedestal.
In addition, in above structure, the end of above-mentioned at least one lock pin places contact pin sleeve pipe separately, and is provided with the spring of ejection lock pin in the contact pin sleeve pipe.
In addition, lid, screw socket cover, sheath, the mutual linking part of pedestal all are provided with O-ring seals.
In sum, the utility model advantage that can be achieved as follows:
1. blind slotting good hand touch, the real realization connects fast;
2. the same core count connector of this technology is than existing bayonet coupling connector product reduced about 1/3;
3. multicore isomorphism, processing technology is identical, is convenient to industrialization;
4. the pedestal straight line moves, the compressing O-ring seal;
5.6 the sealing of road O-ring seal, good waterproof performance;
6. what the assembly of lock pin+sleeve pipe+lock pin and peripheral component special construction had satisfied lock pin dexterously can move calibration and axial tightening function partially, protects porcelain bushing not easily broken simultaneously.
Should be appreciated that the above generality of the utility model is described and the following detailed description all is exemplary and explanat, and be intended to provide further explanation for as claimed in claim the utility model.
Description of drawings
Comprise that accompanying drawing is for providing the utility model further to be understood, they are included and are constituted the application's a part, and accompanying drawing shows embodiment of the present utility model, and play the effect of explaining the utility model principle with this instructions.In the accompanying drawing:
Fig. 1 is the stereographic map of connector of the present utility model.
Fig. 2 is the cut-open view of connector of the present utility model.
Fig. 3 A～C shows the structure of base part.
Fig. 4 is the stereographic map of another angle of connector of the present utility model.
Fig. 5 A and 5B show the structure of lock pin.
Structure when Fig. 6 A and 6B show lock pin is inserted in porcelain bushing.
Embodiment
Now embodiment of the present utility model will be described with reference to the drawings in detail.
Fig. 1 shows according to connector of the present utility model.Arrow A among Fig. 1 is pointed to the front portion of connector, and this is the part that is connected with another connector, and arrow B is pointed to the rear portion of connector, and this part connects optical cable.
Fig. 2 shows the cut-open view of this connector.As shown in the figure, this connector comprises lid 1, the pedestal 4 of front end, guide pin 3, support 6, optical cable neck bush 7, optical cable external bushing 8, tailstock 9, the tail cover 10 at pedestal 4 rears and the O shape silicon rubber loop 11 that plays sealing function in many places that is enclosed within sheath 5 on the pedestal 4, is enclosed within the outer screw sockets cover 2 of sheath 5, protrudes from an end of pedestal 4.
Wherein, half cylindrical structure is adopted in the end of connector base 4, to dividing, and removes a semicolumn longitudinally with diameter, referring to Fig. 3 A～C.Fig. 3 A～C is respectively cut-open view, front view and the stereographic map of pedestal.As shown in the figure, guide pin 302 and gathering sill 301 mirror images are distributed on the lower plane semicircle and last plane semicircle of circumferential edges, and highly adaptive.When engaging two above-mentioned connectors, guide pin 302 and gathering sill 301 are used to guide both suitable contrapositions.Optical fiber ceramic lock pin 304 projections are on the lower plane semicircle, and referring to Fig. 4, with the optical fiber ceramic lock pin insertion porcelain bushing 303 of second half core number in the cable, and quilt integral body is pressed in the respective aperture of plane semicircle.Lock pin butt joint puts in place, and both sides spring 16 (Fig. 5 B) decrement is about 1mm under the state, makes the no gap of butt joint.This male-female structure is nonpolarity, has realized neutralisation, really quick, blind the inserting of pegging graft.
In the embodiment shown in the figures, the quantity of optical fiber ceramic lock pin 304 and porcelain bushing 303 is respectively 2, but obviously other quantity is also in protection domain of the present utility model, and concrete quantity depends on the number of fibers in the optical cable of required butt joint.
Below describe screw socket structure of the present utility model and operation thereof in detail.When two above-mentioned connectors butt joints, earlier one of them screw socket cover 2 is pushed into backward protruding key 14 screens on its internal keyway 13 and sheath 5 outer walls, make screw socket cover 2 and sheath 5 not produce relative rotation, make that simultaneously the external thread 12 of head end of sheath 5 is exposed.
At this moment, can two the connector base negative and positive get rid of slottingly relatively, one of them connector is in the exposed state of external thread 12 of above-mentioned sheath 5 head ends.Thereby, screw socket by another connector overlaps the internal thread (Fig. 4) and above-mentioned exposed external thread 12 on 2 inwalls, when making the screw socket cover 2 of a connector tighten mutually with the sheath 5 of another connector, fiber stub 304 moves axially accordingly with pedestal 4 and puts in place, and make the spring 16 of lock pin tailstock be subjected to force compresses, realize that no gap is got rid of to connect.In addition, as shown in Figure 2,6 O type silica gel rubber circles 11 play sealing function in whole process.
Adopt compression joint technique that corresponding aperture position in the pedestal 4 is gone in ferrule assembly (comprising lock pin 304, contact pin sleeve pipe 15 and spring 16) interference crimping, contact pin sleeve pipe 15 ladder mouth slightly larger in diameter are in installing the aperture, and lock pin thimble assembly and location, pedestal hole are firmly.In addition, adopt compression joint technique that pedestal corresponding aperture position (slightly larger in diameter of lock pin sleeve pipe ladder mouth diameter and straight burr sleeve pipe II is in the aperture is installed) is gone in lock pin thimble assembly interference crimping.Lock pin sleeve pipe and pedestal hole, and straight burr sleeve pipe II and pedestal hole location is firm.
In Fig. 5 B, lock pin 304 is inserted into contact pin sleeve pipe 15, and is subjected to the thrust of spring 16.Shown in Fig. 6 B, when inserting this lock pin 304 in the corresponding with it sleeve pipe, spring 16 is subjected to force compresses, can realize seamless joint easily.Therefore, said modules had both satisfied the requirement that lock pin can move calibration partially when lock pin and sleeve pipe grafting, and lock pin can not bounce back again, no gap optical loss.And sleeve pipe I and sleeve pipe II protect porcelain bushing, and porcelain bushing is not easily broken during grafting.
Those skilled in the art can be obvious, can carry out various modifications and variations and not depart from spirit and scope of the present utility model above-mentioned exemplary embodiment of the present utility model.Therefore, be intended to make the utility model to cover to drop in appended claims and the equivalence techniques scheme scope thereof to modification of the present utility model and modification.
Claims (6)
1. the neutral connector of mobile optical cable is characterized in that, comprises
Pedestal; Its cross section is circular; The upper semi-circle of its front transverse plane is a protuberance that protrudes with semi-cylindrical form; This protuberance comprises gathering sill and at least one porcelain bushing that is arranged at wherein; The lower semi-circular of its front transverse plane partly comprises guide pin and at least one lock pin that is arranged at wherein; The quantity of described lock pin and porcelain bushing equates and with respect to the diameter mirror image symmetry between described upper semi-circle and the lower semi-circular; Described gathering sill and guide pin are also with respect to described diameter mirror image symmetry; The rear end of described pedestal links to each other with optical cable
Sheath is fixed in the outside of described pedestal, and
The screw socket cover is positioned at the front end of described pedestal and coats described sheath, and this screw socket cover can be along the axial activity of described pedestal.
2. the neutral connector of moving fiber as claimed in claim 1 is characterized in that,
The rear side outer wall of described sheath is provided with a protruding key,
The inwall of described screw socket cover is provided with an internal keyway,
Described screw socket cover can be by making described internal keyway and described protruding key screens to pusher, thereby described sheath and described screw socket cover can not rotate mutually.
3. the neutral connector of moving fiber as claimed in claim 2, it is characterized in that, the front side outer wall of described sheath is provided with external thread, the front side inwall of described screw socket cover is provided with internal thread, makes that the sheath of a connector and the screw socket cover of another connector can screw mutually when two described connectors dock.
4. the neutral connector of moving fiber as claimed in claim 1 is characterized in that, comprises that also the front end that can be placed in described screw socket cover is to cover the lid of described pedestal.
5. the neutral connector of moving fiber as claimed in claim 1 is characterized in that the end of described at least one lock pin places contact pin sleeve pipe separately, and is provided with the spring of the described lock pin of ejection in the described contact pin sleeve pipe.
6. the neutral connector of moving fiber as claimed in claim 4 is characterized in that, described lid, screw socket cover, sheath, the mutual linking part of pedestal all are provided with O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200689664U CN201035189Y (en) | 2007-04-16 | 2007-04-16 | Neutral connector of mobile optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200689664U CN201035189Y (en) | 2007-04-16 | 2007-04-16 | Neutral connector of mobile optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035189Y true CN201035189Y (en) | 2008-03-12 |
Family
ID=39196079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200689664U Expired - Fee Related CN201035189Y (en) | 2007-04-16 | 2007-04-16 | Neutral connector of mobile optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201035189Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806940A (en) * | 2010-04-19 | 2010-08-18 | 烽火通信科技股份有限公司 | Optical fiber field connector |
| CN102419464A (en) * | 2011-12-29 | 2012-04-18 | 上海方奥通信技术有限公司 | Novel multi-core neutral optical cable connector |
-
2007
- 2007-04-16 CN CNU2007200689664U patent/CN201035189Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806940A (en) * | 2010-04-19 | 2010-08-18 | 烽火通信科技股份有限公司 | Optical fiber field connector |
| CN101806940B (en) * | 2010-04-19 | 2012-02-29 | 烽火通信科技股份有限公司 | Optical fiber field connector |
| CN102419464A (en) * | 2011-12-29 | 2012-04-18 | 上海方奥通信技术有限公司 | Novel multi-core neutral optical cable connector |
| CN102419464B (en) * | 2011-12-29 | 2014-04-16 | 上海方奥通信技术有限公司 | Novel multi-core neutral optical cable connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20130416 |