CN202351459U - Small-pulling force optical fiber connector shell and optical fiber connector utilizing the shell - Google Patents
Small-pulling force optical fiber connector shell and optical fiber connector utilizing the shell Download PDFInfo
- Publication number
- CN202351459U CN202351459U CN2011204163438U CN201120416343U CN202351459U CN 202351459 U CN202351459 U CN 202351459U CN 2011204163438 U CN2011204163438 U CN 2011204163438U CN 201120416343 U CN201120416343 U CN 201120416343U CN 202351459 U CN202351459 U CN 202351459U
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- housing
- shell
- shell body
- inner housing
- optical fibre
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Abstract
The utility model relates to a small-pulling force optical fiber connector shell and an optical fiber connector utilizing the shell. The small-pulling force optical fiber connector shell comprises an outer shell and an inner shell, wherein the outer shell is provided with a mounting hole used for assembling the inner shell, the mounting hole comprises a small diameter segment on the front end and a large diameter segment on the back end, a stepped surface is formed between the large diameter segment and the small diameter segment, an elastic barb expanding in a radial direction is arranged on the front end of the inner shell, the inner shell is penetrated into the outer shell from the back end of the outer shell along the axial direction and is in unidirectional limiting fit with an outer shell hole arranged on the wall of the small diameter segment of the mounting hole along the axial direction via the elastic barb, and an offsetting spring is arranged between the stepped surface and an outer turned-over edge arranged on the outer wall surface of the inner shell in a top mounting manner; the small-pulling force optical fiber connector shell has the advantages of realizing graded and gradual separation of the inner and outer shells when being separated from a corresponding adapter so as to reduce the necessary pulling force for separating the pre-connected optical fiber connector from the corresponding adapter, and solving the problem that a large pulling force is necessary for separating the optical fiber connector from the corresponding adapter.
Description
Technical field
The utility model relates to the optical cable connection device, especially a kind of little pull out force joints of optical fibre housing and use the joints of optical fibre of this housing.
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 the joints of optical fibre are 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 said housing comprises inside and outside housing (in order to realize double protection), in use; Be assemblied in the said inner housing said contact pin assembly is coaxial; Then with in said inner housing and the coaxial together said shell body of packing into of contact pin assembly, when pegging graft with corresponding adapter, then the contact pin through the contact pin assembly and the contact element grafting of corresponding adapter are with the conducting light path; Grafting through said inside and outside housing and adapter housing realizes sealing, dustproof; And the inside and outside housing of the joints of optical fibre of existing preparatory connection mostly is fixed together, and therefore contact pin, inner housing and shell body are to separate simultaneously with adapter when separating with corresponding adapter, the joints of optical fibre required great pull out force (separating force) when separating with corresponding adapter that this makes preparatory connection; The staff is unavoidable meeting double swerve when pulling up the corresponding joints of optical fibre from adapter; And said contact pin is and fragile parts, and rocking back and forth then very easily causes fractureing and damaging of contact pin, thereby causes the inefficacy of the joints of optical fibre of preparatory connection.
Summary of the invention
The purpose of the utility model is to provide a kind of little pull out force joints of optical fibre housing, to solve the joints of optical fibre in the big problem of pull out force required when separating with corresponding adapter; The purpose of the utility model also is to provide the joints of optical fibre that use above-mentioned joints of optical fibre housing simultaneously.
In order to address the above problem; The little pull out force joints of optical fibre housing of the utility model adopts following technical scheme: little pull out force joints of optical fibre housing; Comprise shell body and be used to assemble the inner housing of contact pin assembly; Said shell body has the mounting hole that is used to assemble said inner housing; 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 inner housing is provided with the radially elasticity hangnail of harmomegathus; Inner housing penetrates behind the shell body 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 shell body vertically, described step surface and be located between outer the turning edge on the inner housing outside wall surface and be top-loaded with back-moving spring.
The internal face of said shell body is provided with the gathering sill that is used for said elasticity hangnail is guided to corresponding shell hanging hole.
The hole wall of the path section of said stepped hole is provided with stopper slot, and the outside wall surface of said inner housing is provided with and is used for cooperating to limit the limited block of inside and outside housing relative displacement in the axial direction with said stopper slot is spacing.
The front end of said shell body is provided with the telltale mark that is used for the cooperation of corresponding adapter location.
Be arranged with the inner casing O-ring seal on the said inner housing and be sealed and matched through said inner casing O-ring seal and said shell body.
The said joints of optical fibre adopt following technical scheme: the joints of optical fibre; Comprise housing and be assemblied in the contact pin assembly in the said housing; Said housing comprises inside and outside housing; Said contact pin assembly is coaxial to be assemblied in the said inner housing, and said shell body has the mounting hole that is used to assemble said inner housing, and 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 inner housing is provided with the radially elasticity hangnail of harmomegathus, and inner housing penetrates behind the shell body 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 shell body vertically, described step surface and be located between outer the turning edge on the inner housing outside wall surface and be top-loaded with back-moving spring.
The internal face of said shell body is provided with the gathering sill that is used for said elasticity hangnail is guided to corresponding shell hanging hole.
The hole wall of the path section of said stepped hole is provided with stopper slot, and the outside wall surface of said inner housing is provided with and is used for cooperating to limit the limited block of inside and outside housing relative displacement in the axial direction with said stopper slot is spacing.
The front end of said shell body is provided with the telltale mark that is used for the cooperation of corresponding adapter location.
Be arranged with the inner casing O-ring seal on the said inner housing and be sealed and matched through said inner casing O-ring seal and said shell body.
Because the shell body of said little pull out force joints of optical fibre housing has the mounting hole that is used to assemble said inner housing; 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 inner housing is provided with the radially elasticity hangnail of harmomegathus; Inner housing penetrates behind the shell body 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 shell body vertically, described step surface and be located between outer the turning edge on the inner housing outside wall surface and be top-loaded with back-moving spring; Therefore; When separating with corresponding adapter; But the said shell body of drawing; Because said inner housing penetrates behind the shell body 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 shell body vertically, so when stirring shell body at first, said back-moving spring is compressed; Shell body moves with respect to inner housing and contact pin assembly backward; Be no pull out force between described inner housing and contact pin assembly and the adapter, when back-moving spring is compressed the pretightning force that reaches when equaling inner housing and separating required separating force with the contact pin assembly with adapter, inner housing just begins to separate with adapter with the contact pin assembly; This shows; Outside the little pull out force joints of optical fibre housing of the utility model has been realized when separating with corresponding adapter, the classification of inner housing progressively separates, thereby required pull out force when the joints of optical fibre that reduced preparatory connection separate with corresponding adapter has solved the joints of optical fibre in the big problem of pull out force required when separating with corresponding adapter.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of the joints of optical fibre;
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 of the contact pin assembly among the embodiment 1 of the joints of optical fibre;
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 inner housing 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 shell body 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;
Figure 17 is the structural representation of little pull out force joints of optical fibre housing.
Embodiment
The embodiment 1 of 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 inside and outside housing is fixed; The fixing back of inside and outside housing 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 inner housing 6 (like Fig. 9-11) and shell body 7 (like Figure 12-14).Has the inner casing mounting hole that extends vertically on the inner housing 6; The contact pin assembly is assemblied in the inner casing mounting hole vertically, coaxially on the internal face of inner casing 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 inner casing bulge loop 6-2 here; The internal diameter of inner casing 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 inner housing 6 at the front end from inner housing 6, and elastic shrinkage radially takes place when the back bulge loop of back casing 2 walks to inner casing bulge loop 6-2 place, thereby crosses the endoporus of inner casing 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 inner casing bulge loop 6-2, thereby the axial anti-channeling of realization back casing 2 and inner housing 6 movingly, simultaneously; The corresponding both sides of forward and backward bulge loop extruding inner casing bulge loop 6-2; Thereby making between forward and backward bulge loop and the inner casing bulge loop 6-2 to produce prevents inner housing 6 and back casing 2 counterrotating resistances, end spin-block 6-1 contact pin assembly plug-in mounting in inner housing 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 inner housing 6 and the back casing 2 cooperates; The front end of inner housing 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 inner housing 6; Backplate 6-4 is the front end that front end with watt shape of inner housing 6 coaxial cables and backplate 6-4 overhangs forward and surpasses contact pin 3, thereby protection contact pin 3 makes the said joints of optical fibre be unlikely to break contact pin 3 when landing falling; The rear end outer wall of inner housing 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 inner housing 6; Turning edge outward to surround between rear side and the said frustum 6-6 of 6-5 supplies the inner casing seal groove 6-7 that O-ring seal embeds and in inner casing seal groove 6-7, is provided with inner casing O-ring seal 8, and inner casing O-ring seal 8 is sealed and matched with the internal face of shell body 7.Inner housing 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 inner casing 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 inner casing mounting hole, and the rear end screw fit of inner housing 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, and seals the rear end of inner casing 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 inner casing 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 inner housing 6 rear ends; Thereby realize that only revolving between baffle ring 12 and the inner housing 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 shell mounting hole that extends vertically in the shell body 7; The shell mounting hole is the two stage steps hole; The front end of shell 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 inner housing 6 inserts shell body 7 backs through in the shell hanging hole 7-1 on its elasticity hangnail 6-3 setting-in to the shell body 7 from the rear end of shell body 7, thereby makes shell body 7 to move backward with respect to inner housing 6; 13 of back-moving springs are mounted between the step surface in outer turn edge 6-5 and the shell mounting hole; The internal face upper edge shell mounting hole of shell body be axially arranged with gathering sill 7-4, gathering sill 7-4 is corresponding one by one with the elasticity hangnail of inner housing, be used for inner housing 6 when shell body 7 is inserted in the rear end of shell body 7 with inner housing 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 shell 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 inner housing 6 is provided with limited block 6-9; When inner housing 6 inserted shell body 7, said limited block 6-9 slipped in the stopper slot 7-2 on the shell body, when pulled backwards shell body 7; The rear side of said limited block 6-9 cooperates with the rear side cell wall block of stopper slot 7-2 and limits the relative displacement in the axial direction of inside and outside housing; Make the effect that has certain relative shift between the inside and outside housing in the axial direction be when the said joints of optical fibre when separating with corresponding adapter, make shell body and inner housing and the contact pin assembly classification that fixedly is assemblied in the inner housing progressively separate with adapter, thus the pull out force when reducing to separate; The front end of shell body 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 shell body 7 with the cooperation place of adapter with the internal face of adapter; The front end of shell body 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, when the joints of optical fibre and corresponding adapter are pegged graft, to realize the anti-mis-insertion between the two.
In other embodiment of the joints of optical fibre; The position of bulge loop described in the embodiment 1 of the joints of optical fibre and annular groove can also exchange; In such cases, said annular groove is located on the internal face of described inner housing, 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 shell body can also be established in use in addition.
The embodiment 1 of little pull out force joints of optical fibre housing; Shown in figure 17; Have inner housing 51 and shell body 52, the structure and the assembly relation of the inside and outside housing of the joints of optical fibre among the embodiment 1 of this shell body and inner housing and the above-mentioned joints of optical fibre are all identical, will not give unnecessary details here.
Claims (10)
1. little pull out force joints of optical fibre housing; Comprise shell body and be used to assemble the inner housing of contact pin assembly; It is characterized in that said shell body has the mounting hole that is used to assemble said inner housing, 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 inner housing is provided with the radially elasticity hangnail of harmomegathus, and inner housing penetrates behind the shell body 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 shell body vertically, described step surface and be located between outer the turning edge on the inner housing outside wall surface and be top-loaded with back-moving spring.
2. little pull out force joints of optical fibre housing according to claim 1 is characterized in that, the internal face of said shell body is provided with the gathering sill that is used for said elasticity hangnail is guided to corresponding shell hanging hole.
3. little pull out force joints of optical fibre housing according to claim 1; 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 inner housing is provided with and is used for cooperating to limit the limited block of inside and outside housing relative displacement in the axial direction with said stopper slot is spacing.
4. little pull out force joints of optical fibre housing according to claim 1 is characterized in that, the front end of said shell body is provided with the telltale mark that is used for the cooperation of corresponding adapter location.
5. according to each described little pull out force joints of optical fibre housing of claim 1-4, it is characterized in that, be arranged with the inner casing O-ring seal on the said inner housing and be sealed and matched through said inner casing O-ring seal and said shell body.
6. the joints of optical fibre; Comprise housing and be assemblied in the contact pin assembly in the said housing; Said housing comprises inside and outside housing, and said contact pin assembly is coaxial to be assemblied in the said inner housing, it is characterized in that; Said shell body has the mounting hole that is used to assemble said inner housing; 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 inner housing is provided with the radially elasticity hangnail of harmomegathus; Inner housing penetrates behind the shell body 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 shell body vertically, described step surface and be located between outer the turning edge on the inner housing outside wall surface and be top-loaded with back-moving spring.
7. the joints of optical fibre according to claim 6 is characterized in that, the internal face of said shell body is provided with the gathering sill that is used for said elasticity hangnail is guided to corresponding shell hanging hole.
8. the joints of optical fibre according to claim 6; 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 inner housing is provided with and is used for cooperating to limit the limited block of inside and outside housing relative displacement in the axial direction with said stopper slot is spacing.
9. the joints of optical fibre according to claim 6 is characterized in that, the front end of said shell body is provided with the telltale mark that is used for the cooperation of corresponding adapter location.
10. according to each described joints of optical fibre of claim 6-9, it is characterized in that, be arranged with the inner casing O-ring seal on the said inner housing and be sealed and matched through said inner casing O-ring seal and said shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163438U CN202351459U (en) | 2011-10-27 | 2011-10-27 | Small-pulling force optical fiber connector shell and optical fiber connector utilizing the shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204163438U CN202351459U (en) | 2011-10-27 | 2011-10-27 | Small-pulling force optical fiber connector shell and optical fiber connector utilizing the shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351459U true CN202351459U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204163438U Expired - Fee Related CN202351459U (en) | 2011-10-27 | 2011-10-27 | Small-pulling force optical fiber connector shell and optical fiber connector utilizing the shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351459U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385119A (en) * | 2011-10-27 | 2012-03-21 | 中航光电科技股份有限公司 | Small-pullout-force optical fiber connector shell and optical fiber connector using same |
| CN104183978A (en) * | 2013-05-28 | 2014-12-03 | 中航光电科技股份有限公司 | Floating connector capable of being automatically reset |
| US9864156B1 (en) | 2016-07-01 | 2018-01-09 | 3M Innovative Properties Company | Multi-purpose sealing device |
-
2011
- 2011-10-27 CN CN2011204163438U patent/CN202351459U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385119A (en) * | 2011-10-27 | 2012-03-21 | 中航光电科技股份有限公司 | Small-pullout-force optical fiber connector shell and optical fiber connector using same |
| CN104183978A (en) * | 2013-05-28 | 2014-12-03 | 中航光电科技股份有限公司 | Floating connector capable of being automatically reset |
| US9864156B1 (en) | 2016-07-01 | 2018-01-09 | 3M Innovative Properties Company | Multi-purpose sealing device |
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|---|---|---|---|
| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |