CN202351460U - Pre-connection optical fiber connector - Google Patents
Pre-connection optical fiber connector Download PDFInfo
- Publication number
- CN202351460U CN202351460U CN2011204163480U CN201120416348U CN202351460U CN 202351460 U CN202351460 U CN 202351460U CN 2011204163480 U CN2011204163480 U CN 2011204163480U CN 201120416348 U CN201120416348 U CN 201120416348U CN 202351460 U CN202351460 U CN 202351460U
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- sheath
- sleeve
- optical fibre
- contact pin
- back casing
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Abstract
The utility model relates to a pre-connection optical fiber connector which comprises a shell and a thrusting needle component assembled in the shell, wherein the thrusting needle component comprises a thrusting needle shell consisting of a front shell and a rear shell; the shell comprises a sheath; the rear shell is coaxially assembled in the sheath; a ring slot is formed on one of the sheath and the rear shell, and a convex ring matched with the corresponding side wall of the ring slot in an anti-moving manner is arranged on the other one of the sheath and the rear shell; and the rear shell is inserted into the sheath and fixedly matched with the sheath through the convex ring and the ring slot. As the ring slot is formed on one side of one of the rear shell of the thrusting needle component and the sheath, and the convex ring which is embedded in the ring slot and matched with the corresponding side wall of the ring slot in the anti-moving manner along an axial direction is arranged on the other one of the rear shell and the sheath, the thrusting needle component is only required to be forcibly assembled into the sheath during assembly, so that the thrusting needle component can be fixed with the sheath; and process steps of injecting glue and the like of the conventional pre-connection optical fiber connector are avoided, so that the problem of low assembly efficiency during manufacturing of the pre-connection optical fiber connector is solved.
Description
Technical field
The utility model relates to the optical cable connection device, especially a kind of preparatory connection joints of optical fibre.
Background technology
Compare with connected modes such as welding, cold joint or the on-the-spot mill at traditional fiber terminal connect, interconnection technique adopts optical fiber direct-passing mode, i.e. optical fiber connectionless point in advance.According to requirement of client, by factory's tailor-make product, the attrition process of the column criterion of going forward side by side program, all technical indicators are observed IEC, TIA and relevant standard, and in this, technical indicator surmounts the connector that on-the-spot mill connects far away.Wherein connecting the joints of optical fibre in advance is exactly an indispensable critical component in the preparatory interconnection technique; The general optical fiber connector includes the contact pin assembly; Said contact pin assembly comprises the procapsid of rectangle and the back casing of rectangle, and forward and backward housing is pegged graft mutually and movablely vertically in the endoporus of the two is equipped with Plug pin patch bay, is fixed in the contact pin on the Plug pin patch bay and is mounted on the buffer spring between Plug pin patch bay rear end and the back casing; The above-mentioned joints of optical fibre have all obtained using widely in various fields; But but be not suitable for preparatory connection optical cable; Trace it to its cause; Then mainly be because not have the intensity of dustproof, waterproof construction and forward and backward housing limited the outside of the above-mentioned joints of optical fibre, can't satisfy the requirement of the joints of optical fibre of preparatory connection optical cable; In order to address this problem; Present way is the housing that is provided for protecting the contact pin assembly in the outside of said forward and backward housing in addition; And owing to all do not have corresponding syndeton on the said forward and backward housing, therefore during fabrication, be assemblied in the housing described contact pin assembly is coaxial often; Compress through nut then or the mode of encapsulating fixing seal is fixedly connected back casing with the housing that other establishes; This then greatly reduces the efficiency of assembling to the joints of optical fibre that are applicable to preparatory interconnection technique, and when especially adopting the fixing mode of encapsulating, its technological process especially and complicated.In sum, the existing equal manufacturing process complicacy of the joints of optical fibre that is applicable to preparatory interconnection technique can't satisfy development in enormous quantities, high speed, disagrees with the present market demand.
Summary of the invention
The purpose of the utility model is to provide a kind of preparatory connection joints of optical fibre, to solve the low problem of preparatory connection joints of optical fibre efficiency of assembling during fabrication.
In order to address the above problem; The preparatory connection joints of optical fibre of the utility model adopt following technical scheme: connect the joints of optical fibre in advance; Comprise housing and be assemblied in the contact pin assembly in the said housing that said contact pin assembly comprises by forward and backward housing and plug together the contact pin housing that forms that said housing comprises sheath; Said back casing is coaxial to be assemblied in the said sheath; In sheath and the back casing one is provided with annular groove in the two side of working in coordination, another be provided be flush-mounted in the said annular groove and vertically with the corresponding sidewall anti-channeling bulge loop movingly of annular groove, said back casing penetrates behind the sheath through said bulge loop and annular groove and back casing secure fit vertically.
In said sheath and the back casing one is provided with only spin slot in the two side of working in coordination; Another is provided with to be flush-mounted in said end and only revolves key in the spin slot, and said back casing penetrates vertically behind the sheath through said and only revolves key and end spin slot and only revolve with back casing and cooperate.
Coaxial activity is equipped with the sleeve that is used to control on the said sheath, said sleeve anticreep be assemblied on the sheath and and the rear end of sheath between be top-loaded with back-moving spring.
Be sealed and matched through the sheath O-ring seal between said sheath and the sleeve, the front end sleeve of said sleeve is provided with and is used for the sleeve O-ring seal that is sealed and matched with corresponding adapter.
The rear end of said sheath is equipped with elasticity line ball seat and sealing nut, said sealing nut have be used for roof pressure elasticity line ball seat in turn edge, turn edge in the sealing nut with elasticity line ball seat between only revolve the baffle ring that cooperates at a distance from being provided with sheath.
Said annular groove is by one in front and one in back surrounding with the forward and backward bulge loop on the outside wall surface that is located in back casing vertically.
The said spin slot that ends is opened on the described preceding bulge loop.
Said sleeve has the mounting hole that is used to assemble said sheath; Said mounting hole comprises the path section of front end and the big footpath section of rear end; Form a step surface between the section of said large and small footpath; The front end of said sheath is provided with the radially elasticity hangnail of harmomegathus; Sheath penetrates behind the sleeve through unidirectional vertically spacing cooperation of shell hanging hole on the hole wall of its elasticity hangnail and the path section that is arranged on said mounting hole from the rear end of sleeve vertically, described step surface and be located between outer the turning edge on the sheath outside wall surface and be top-loaded with back-moving spring.
The hole wall of the path section of said stepped hole is provided with stopper slot, and the outside wall surface of said sheath is provided with and is used for cooperating limited block interior to limit, sleeve relative displacement in the axial direction with said stopper slot is spacing.
One front end face in said sheath and the sleeve is provided with the backplate of the contact pin that is used to protect the contact pin assembly, and the front end of said backplate overhangs forward and surpasses the front end of the contact pin of contact pin assembly.
Because the said preparatory connection joints of optical fibre in the back casing of its contact pin assembly and sheath is provided with annular groove on the two side of working in coordination; Another be provided be flush-mounted in the said annular groove and vertically with the corresponding sidewall anti-channeling bulge loop movingly of annular groove; Therefore when assembling, only need the said contact pin assembly described sheath of packing into by force can be realized fixing between contact pin assembly and the sheath; Omitted traditional preparatory connection joints of optical fibre encapsulating, processing step such as press-fit, thereby solved the low problem of preparatory connection joints of optical fibre efficiency of assembling during fabrication.
Description of drawings
Fig. 1 is the structural representation that connects the embodiment 1 of the joints of optical fibre in advance;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the stereographic map of Fig. 1;
Fig. 4 is the structural representation that connects the contact pin assembly among the embodiment 1 of the joints of optical fibre in advance;
Fig. 5 is the B-B cut-open view of Fig. 4;
Fig. 6 is the stereographic map of Fig. 4;
Fig. 7 is the structural representation of the procapsid among Fig. 4;
Fig. 8 is the structural representation of the back casing among Fig. 4;
Fig. 9 is the structural representation of the sheath among Fig. 2;
Figure 10 is the C-C cut-open view of Fig. 9;
Figure 11 is the stereographic map of Fig. 9;
Figure 12 is the structural representation of the sleeve among Fig. 2;
Figure 13 is the D-D cut-open view of Figure 12;
Figure 14 is the stereographic map of Figure 12;
Figure 15 is the structural representation of the elasticity line ball seat among Fig. 2;
Figure 16 is the structural representation of the baffle ring among Fig. 2.
Embodiment
The embodiment 1 that connects in advance the joints of optical fibre shown in Fig. 1-16, is made up of housing and the contact pin assembly be located in the housing.
Contact pin assembly (like Fig. 4-8) has the contact pin housing; The contact pin housing is made up of procapsid 1 and back casing 2, and the outline of procapsid 1 is rectangular and have the endoporus that extends vertically, is provided with baffle plate 1-1 in the endoporus of procapsid 1; The through hole that connects before and after having on the baffle plate 1-1 and in through hole vertically activity-oriented be equipped with contact pin 3; The rear end of contact pin 3 is provided with Plug pin patch bay 4, and spacing cooperation of rear side block of the front end of Plug pin patch bay 4 and baffle plate 1-1, its rear end is provided with buffer spring 5; Procapsid 1 is in upwards being provided with fore shell hanging hole 1-2 its week; Promptly be located at the through hole that makes progress in week of procapsid; Elastically-deformable elasticity voussoir 2-1 can radially take place in upwards being laid with in week in the front end of back casing 2; After the front end of back casing 2 inserted the rear end of procapsid 1, its each elasticity voussoir embedded in the fore shell hanging hole on the procapsid 1, thereby interior, sleeve are fixed; Interior, the fixing back of sleeve buffer spring 5 is mounted between Plug pin patch bay 4 and the back casing 2, all has the passage that supplies optical fiber to pass through on Plug pin patch bay 4 and the back casing 2; Bulge loop 2-2, back bulge loop 2-3 before one in front and one in back correspondence is provided with on the outside wall surface of back casing 2; The center line of forward and backward bulge loop is all with the axis conllinear of back casing 2 and surround an annular groove 2-4; The outside wall surface of preceding bulge loop 2-2 is provided with only spin slot 2-5, ends the groove of spin slot 2-5 for the axial both sides of bulge loop 2-3 after connecting.
Housing has sheath 6 (like Fig. 9-11) and sleeve 7 (like Figure 12-14).Has the sheath mounting hole that extends vertically on the sheath 6; The contact pin assembly is assemblied in the sheath mounting hole vertically, coaxially on the internal face of sheath mounting hole is provided with bulge loop and is provided with only spin-block 6-1 in place, the front side of bulge loop, this bulge loop is made as sheath bulge loop 6-2 here; The internal diameter of sheath bulge loop 6-2 is greater than the external diameter of the forward and backward bulge loop of back casing 2; The contact pin assembly inserts the process of sheath 6 at the front end from sheath 6, and elastic shrinkage radially takes place when the back bulge loop of back casing 2 walks to sheath bulge loop 6-2 place, thereby crosses the endoporus of sheath bulge loop 6-2; This moment annular groove 2-4 axial two side; Be the respective side of forward and backward bulge loop and spacing cooperation of respective side of sheath bulge loop 6-2, thereby the axial anti-channeling of realization back casing 2 and sheath 6 movingly, simultaneously; The corresponding both sides of forward and backward bulge loop extruding sheath bulge loop 6-2; Thereby making between forward and backward bulge loop and the sheath bulge loop 6-2 to produce prevents sheath 6 and back casing 2 counterrotating resistances, end spin-block 6-1 contact pin assembly plug-in mounting in sheath 6 put in place the back embed before ending in the spin slot 2-5 on the bulge loop 2-2, thereby only revolving between assurance sheath 6 and the back casing 2 cooperates; The front end of sheath 6 is in upwards being laid with elasticity hangnail 6-3 week; Be provided with the backplate 6-4 that extends forward in front end face; Elasticity hangnail 6-3 can be along the radially harmomegathus of sheath 6; Backplate 6-4 is the front end that front end with watt shape of sheath 6 coaxial cables and backplate 6-4 overhangs forward and surpasses contact pin 3, thereby protection contact pin 3 makes the said preparatory connection joints of optical fibre be unlikely to break contact pin 3 when landing falling; The rear end outer wall of sheath 6 be provided with outer turn edge 6-5 and in outside turn edge 6-5 the rear side place with outside the 6-5 that turns edge be arranged at intervals with a pre-large post-small frustum 6-6; The 6-5 that turns edge outward is the annular coaxial with sheath 6; Turning edge outward to surround between rear side and the said frustum 6-6 of 6-5 supplies the sheath seal groove 6-7 that O-ring seal embeds and in sheath seal groove 6-7, is provided with sheath O-ring seal 8, and sheath O-ring seal 8 is sealed and matched with the internal face of sleeve 7.Sheath 6 has a flared section and in its flared section, is equipped with elasticity line ball seat 9 (like Figure 15) in the rear end of its sheath mounting hole; Has a taper type section 9-1 between the two ends of elasticity line ball seat 9; This taper type section 9-1 is positioned at the flared section of sheath mounting hole, and the rear end screw fit of sheath 6 has sealing nut 10, turns edge in the rear end of sealing nut 10 has; Be used to compress elasticity line ball seat 9; Thereby on the one hand the crust with the optical cable that penetrates 11 compresses, the rear end of sealing sheath mounting hole on the other hand, turn edge in the sealing nut 10 and the rear end face of the taper type section of elasticity line ball seat 9 between be provided with baffle ring 12 (like Figure 16; Baffle ring 12 is assemblied in the flared section of sheath mounting hole and embeds through the protruding 12-1 on its outer peripheral face and is located in the draw-in groove 6-8 of sheath 6 rear ends; Thereby realize that only revolving between baffle ring 12 and the sheath 6 cooperates, this makes that then the optical cable in the unlikely drive elasticity line ball seat 9 and elasticity line ball seat rotates together when tightening sealing nut 10, thereby prevents that optical cable from being turned round bad.
Has the sleeve mounting hole that extends vertically in the sleeve 7; The sleeve mounting hole is the two stage steps hole; The front end of sleeve mounting hole is the path section, and the rear end is a big footpath section, and the adjoiner of said large and small footpath section forms a step surface; The coaxial back-moving spring 13 that is equiped with in the section of big footpath; The hole wall of path section is provided with penetrating shell hanging hole 7-1, and the front end of sheath 6 inserts sleeve 7 backs through in the shell hanging hole 7-1 on its elasticity hangnail 6-3 setting-in to the sleeve 7 from the rear end of sleeve 7, thereby makes sleeve 7 to move backward with respect to sheath 6; 13 of back-moving springs are mounted between the step surface in outer turn edge 6-5 and the sleeve mounting hole; The internal face upper edge sleeve mounting hole of sleeve be axially arranged with gathering sill 7-4, gathering sill 7-4 is corresponding one by one with the elasticity hangnail of sheath, be used for sheath 6 when sleeve 7 is inserted in the rear end of sleeve 7 with sheath 6 on elasticity hangnail guiding cooperate with the corresponding shell hanging hole 7-1 of each elasticity hangnail introduction; The path sector hole wall of sleeve mounting hole is provided with stopper slot 7-2; The front end of stopper slot 7-2 extends in the hole, big footpath; The outside wall surface of sheath 6 is provided with limited block 6-9; When sheath 6 inserted sleeve 7, said limited block 6-9 slipped in the stopper slot 7-2 on the sleeve, when pulled backwards sleeve 7; In the rear side of said limited block 6-9 cooperates with the rear side cell wall block of stopper slot 7-2 and limits, sleeve relative displacement in the axial direction; Make the effect that has certain relative shift between interior, the sleeve in the axial direction be when the said preparatory connection joints of optical fibre when separating with corresponding adapter, make sleeve and sheath and the contact pin assembly classification that fixedly is assemblied in the sheath progressively separate with adapter, thus the pull out force when reducing to separate; The front end of sleeve 7 is provided with the body seal ring recess and in the body seal ring recess, is provided with body seal circle 14 in coaxial on the outside wall surface, and body seal circle 14 is used for when pegging graft with corresponding adapter, cooperating with the waterproof and dustproof function of realization sleeve 7 with the cooperation place of adapter with the internal face of adapter; The front end of sleeve 7 also is provided with telltale mark 7-3 on outside wall surface, telltale mark 7-3 adopts colour code, be used for corresponding adapter on telltale mark corresponding, to realize the anti-mis-insertion between the two when the joints of optical fibre and corresponding adapter are pegged graft connecting in advance.
Connecting in advance among other embodiment of the joints of optical fibre; The bulge loop described in the embodiment 1 of the connection joints of optical fibre and the position of annular groove can also exchange in advance; In such cases, said annular groove is located on the internal face of described sheath, said bulge loop is located on the outside wall surface of said back casing; Annular groove on the said back casing can also directly be opened on the outside wall surface of back casing, and in such cases, described forward and backward bulge loop then can omit; The described spin slot that ends can also be opened on the bulge loop of described back; Described sleeve can also be established in use in addition; Described backplate can also be located at the front end of sleeve.
Claims (10)
1. connect the joints of optical fibre in advance; Comprise housing and be assemblied in the contact pin assembly in the said housing; Said contact pin assembly comprises by forward and backward housing and plugs together the contact pin housing that forms, and it is characterized in that said housing comprises sheath; Said back casing is coaxial to be assemblied in the said sheath; In sheath and the back casing one is provided with annular groove in the two side of working in coordination, another be provided be flush-mounted in the said annular groove and vertically with the corresponding sidewall anti-channeling bulge loop movingly of annular groove, said back casing penetrates behind the sheath through said bulge loop and annular groove and back casing secure fit vertically.
2. the preparatory connection joints of optical fibre according to claim 1; It is characterized in that; In said sheath and the back casing one is provided with only spin slot in the two side of working in coordination; Another is provided with to be flush-mounted in said end and only revolves key in the spin slot, and said back casing penetrates vertically behind the sheath through said and only revolves key and end spin slot and only revolve with back casing and cooperate.
3. the preparatory connection joints of optical fibre according to claim 1 is characterized in that coaxial activity is equipped with the sleeve that is used to control on the said sheath, said sleeve anticreep be assemblied on the sheath and and the rear end of sheath between be top-loaded with back-moving spring.
4. the preparatory connection joints of optical fibre according to claim 1 is characterized in that, are sealed and matched through the sheath O-ring seal between said sheath and the sleeve, and the front end sleeve of said sleeve is provided with and is used for the sleeve O-ring seal that is sealed and matched with corresponding adapter.
5. the preparatory connection joints of optical fibre according to claim 1; It is characterized in that; The rear end of said sheath is equipped with elasticity line ball seat and sealing nut; Said sealing nut have be used for roof pressure elasticity line ball seat in turn edge, turn edge in the sealing nut with elasticity line ball seat between only revolve the baffle ring that cooperates at a distance from being provided with sheath.
6. the preparatory connection joints of optical fibre according to claim 2 is characterized in that, said annular groove is by one in front and one in back surrounding with the forward and backward bulge loop on the outside wall surface that is located in back casing vertically.
7. the preparatory connection joints of optical fibre according to claim 6 is characterized in that, the said spin slot that ends is opened on the described preceding bulge loop.
8. the preparatory connection joints of optical fibre according to claim 3; It is characterized in that; Said sleeve has the mounting hole that is used to assemble said sheath; Said mounting hole comprises the path section of front end and the big footpath section of rear end, forms a step surface between the section of said large and small footpath, and the front end of said sheath is provided with the radially elasticity hangnail of harmomegathus; Sheath penetrates behind the sleeve through unidirectional vertically spacing cooperation of shell hanging hole on the hole wall of its elasticity hangnail and the path section that is arranged on said mounting hole from the rear end of sleeve vertically, described step surface and be located between outer the turning edge on the sheath outside wall surface and be top-loaded with back-moving spring.
9. the preparatory connection joints of optical fibre according to claim 8; It is characterized in that; The hole wall of the path section of said stepped hole is provided with stopper slot, and the outside wall surface of said sheath is provided with and is used for cooperating limited block interior to limit, sleeve relative displacement in the axial direction with said stopper slot is spacing.
10. the preparatory connection joints of optical fibre according to claim 3; It is characterized in that; One front end face in said sheath and the sleeve is provided with the backplate of the contact pin that is used to protect the contact pin assembly, and the front end of said backplate overhangs forward and surpasses the front end of the contact pin of contact pin assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163480U CN202351460U (en) | 2011-10-27 | 2011-10-27 | Pre-connection optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163480U CN202351460U (en) | 2011-10-27 | 2011-10-27 | Pre-connection optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351460U true CN202351460U (en) | 2012-07-25 |
Family
ID=46540454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204163480U Expired - Fee Related CN202351460U (en) | 2011-10-27 | 2011-10-27 | Pre-connection optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351460U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385120A (en) * | 2011-10-27 | 2012-03-21 | 中航光电科技股份有限公司 | Optical fiber connector for pre-connection |
| CN111190254A (en) * | 2019-12-09 | 2020-05-22 | 中航光电科技股份有限公司 | Optical fiber connector and optical fiber contact member |
-
2011
- 2011-10-27 CN CN2011204163480U patent/CN202351460U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385120A (en) * | 2011-10-27 | 2012-03-21 | 中航光电科技股份有限公司 | Optical fiber connector for pre-connection |
| CN111190254A (en) * | 2019-12-09 | 2020-05-22 | 中航光电科技股份有限公司 | Optical fiber connector and optical fiber contact member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20181027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |