CN112415667B - MPO fiber connector - Google Patents
MPO fiber connector Download PDFInfo
- Publication number
- CN112415667B CN112415667B CN202011379852.8A CN202011379852A CN112415667B CN 112415667 B CN112415667 B CN 112415667B CN 202011379852 A CN202011379852 A CN 202011379852A CN 112415667 B CN112415667 B CN 112415667B
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- Prior art keywords
- shell
- inner shell
- outer shell
- locking ring
- clamping plate
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
Abstract
The invention discloses an MPO optical fiber connector, which comprises an inserting core, an inner shell, an outer shell, a locking ring and a connecting plate, the outer shell and the inner shell are both hollow structures, the hollow part of the inner shell is matched with the inserting core, the hollow part of the outer shell is matched with the inner shell, the inserting core is arranged in the inner shell in a sliding way, the inner shell is slidably disposed within the outer shell, the inner shell is removably coupled to the outer shell, a clamping plate is fixedly arranged on one side of the inserting core and is abutted against the end surfaces of the inner shell and the outer shell, the outer side surface of the inner shell is provided with an annular bulge, the annular bulge is abutted against one side of the outer shell far away from the clamping plate, the locking ring cover is located on the inner shell, the locking ring with annular protruding one side butt of keeping away from the shell has solved the technical problem that exists among the prior art, if: the spring causes the technical problem that the axial length is too long and the arrangement in a narrow space is inconvenient.
Description
Technical Field
The invention relates to the field of optical fiber connectors, in particular to an MPO optical fiber connector.
Background
Along with the rapid development of communication such as big data and cloud computing, the requirement on network broadband is increased in a blowout mode, so that higher requirements are provided for optical fiber network density, and the traditional optical fiber wiring network cannot meet the development requirement increasingly. The developed MPO/MTP optical fiber connector is a multi-core multi-channel plug-in connector and has the advantages of high connection density, stable and reliable performance, small volume, convenience in operation, easiness in wiring management and the like. The optical fiber connector with the guide pin hole is connected with the female optical fiber connector with the guide pin hole in a butt joint mode, the male optical fiber connector with the guide pin hole is locked on the adapter in a butt joint mode, the pushing force of a compression spring is used for keeping the physical contact of the matched multi-core inserting cores, and therefore the multi-optical fiber interconnection of two optical cables is achieved.
MPO fiber connector among the prior art keeps the fastening when keeping public head to be connected with female, often be provided with the spring on the axial direction of lock pin, the spring both ends act on lock pin and fiber connector respectively, the spring that receives the compression during grafting gives an elasticity of lock pin, make and keep fixed between the two public head and female, however because its spring setting is on the axial direction of lock pin, this just leads to fiber connector's whole length to lengthen, because the fiber connector tail end needs the tail cover of certain length to draw forth optic fibre, so install fiber connector in the narrow and small environment in space, longer axial length is not convenient for arrange, and make the angle of buckling after optic fibre draws become too big, it exists: the spring causes the technical problem that the axial length is too long and the arrangement in a narrow space is inconvenient.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the object of the present invention is to: the MPO optical fiber connector is provided, and the technical problems in the prior art are solved, such as: the spring causes the technical problem that the axial length is too long and the arrangement in a narrow space is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme:
an MPO optical fiber connector comprises an insert core, an inner shell, an outer shell, a locking ring and a connecting plate, wherein the outer shell and the inner shell are both of a hollow structure, the hollow part of the inner shell is matched with the insert core, the hollow part of the outer shell is matched with the inner shell, the insert core is slidably arranged in the inner shell, the inner shell is slidably arranged in the outer shell, the inner shell is detachably connected with the outer shell, a clamping plate is fixedly arranged on one side of the insert core and is abutted against the end surfaces of the inner shell and the outer shell, an annular bulge is arranged on the outer side surface of the inner shell and is abutted against one side of the outer shell, which is far away from the clamping plate, the locking ring is sleeved on the inner shell, and the locking ring is abutted against one side of the annular bulge, which is far away from the outer shell;
a plurality of connecting rods are fixedly arranged on one side of the connecting plate, the connecting rods sequentially penetrate through the clamping plate, the shell and the annular bulge and are connected with the locking ring, the clamping plate is slidably arranged on the connecting rods, and a gap is formed between the connecting plate and the clamping plate;
an elastic band is fixedly arranged on one side of the clamping plate, through holes matched with the elastic band are formed in the shell and the annular protrusions, and the elastic band penetrates through the through holes of the shell and the annular protrusions and is connected with the locking ring.
Further, the annular bulge is close to one side of shell is equipped with the buckle, the buckle with clearance setting between the inner shell lateral surface, the buckle is kept away from one side of shell is the wedge structure, the shell side be equipped with the draw-in groove of wedge structure adaptation, the buckle passes through draw-in groove detachably connects the shell.
Furthermore, the buckle is equipped with four, four the buckle set up in four lateral surfaces of inner shell.
Furthermore, one side of the elastic band, which is far away from the clamping plate, penetrates through the buckle.
Furthermore, the side surface of the locking ring is in threaded connection with a limit screw and a connecting screw, a connecting hole matched with the connecting screw is formed in the connecting rod, the connecting screw penetrates through the connecting hole and is in threaded connection with the outer side surface of the inner shell, the limit screw is provided with a plurality of limit screws, and the limit screws are abutted to the elastic band.
Furthermore, the elastic bands are two, two the elastic bands are arranged on two sides of the insertion core, the number of the connecting rods is four, and the four connecting rods are respectively arranged at four ends of the clamping plate.
Furthermore, one side of the connecting plate, which is far away from the ferrule, is provided with a threading part, and the threading part is used for leading out the optical fiber on the ferrule.
Compared with the prior art, the invention has the following beneficial effects:
1. through the elasticity form of elastic band, through passing shell and inner shell with the elastic band, it is in the radial of lock pin to fastening when keeping connecting has effectually practiced thrift the axial space of lock pin, is convenient for install under constrictive circumstances, and has reduced whole occupation space, has reached the beneficial effect of reducing axial length with the narrow space of adaptation.
2. Be equipped with the through-hole with the elastic band adaptation through the buckle, the elastic band passes the through-hole of buckle, because the elastic band is the state of tightening, and it passes the buckle, so the buckle is towards draw-in groove butt shell under the elastic action, makes the wedge structure of buckle card more tight in the draw-in groove, prevents that the inner shell is unexpected to be thrown off, has reached the beneficial effect that keeps buckle chucking inner shell and shell to prevent unexpected throw off.
Drawings
FIG. 1 is an overall structural view of an MPO optical fiber connector according to the present invention;
FIG. 2 is a schematic view of a disassembled state;
FIG. 3 is a schematic side sectional view;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
List of reference numerals
1-inserting core, 2-inner shell, 21-buckle, 22-annular bulge, 23-inserting groove, 3-locking ring, 31-limiting screw, 32-connecting screw, 4-outer shell, 41-clamping groove, 5-connecting plate, 51-threading part and 52-connecting rod.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to fig. 1-4, and it should be understood that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.
An MPO optical fiber connector comprises a ferrule 1, an inner shell 2, an outer shell 4, a locking ring 3 and a connecting plate 5, the outer shell 4 and the inner shell 2 are both hollow structures, the hollow part of the inner shell 2 is matched with the core insert 1, the hollow part of the outer shell 4 is matched with the inner shell 2, the core insert 1 is arranged in the inner shell 2 in a sliding way, the inner shell 2 is slidably disposed in the outer shell 4, the inner shell 2 is detachably connected to the outer shell 4, a clamping plate 12 is fixedly arranged on one side of the ferrule 1, the clamping plate 12 is abutted against the end surfaces of the inner shell 2 and the outer shell 4, an annular bulge 22 is arranged on the outer side surface of the inner shell 2, the annular bulge 22 is abutted against one side of the outer shell 4 far away from the clamping plate 12, the locking ring 3 is sleeved on the inner shell 2, and the locking ring 3 is abutted against one side of the annular bulge 22, which is far away from the outer shell 4;
a plurality of connecting rods 52 are fixedly arranged on one side of the connecting plate 5, the connecting rods 52 sequentially penetrate through the clamping plate 12, the shell 4 and the annular protrusion 22 and are connected with the locking ring 3, the clamping plate 12 is slidably arranged on the connecting rods 52, and a gap is formed between the connecting plate 5 and the clamping plate 12;
an elastic band 11 is fixedly arranged on one side of the clamping plate 12, through holes matched with the elastic band 11 are formed in the shell 4 and the annular protrusions 22, and the elastic band 11 penetrates through the through holes of the shell 4 and the annular protrusions 22 and is connected with the locking ring 3.
As shown in fig. 1 and 2, the inner case 2 is detachably connected to the outer case 4, and the snap plate 12 is connected to the locking ring 3 by a plurality of connecting rods 52, so that the inner case 2, the outer case 4, the connecting locking ring 3 and the snap plate 12 are integrally fixed relative to each other, only the ferrule 1 can slide in the inner case 2 with a sliding stroke of a gap interval between the connecting plate 5 and the snap plate 12, the elastic band 11 is elastic and in a tensioned state, and the side thereof away from the connecting plate 5 is connected to the locking ring 3, so that the snap plate 12 abuts against the end faces of the inner case 2 and the outer case 4 under the elastic force of the elastic band 11.
This device has cancelled the spring structure in the traditional MPO fiber connector, replaces it for the elasticity form of elastic band 11, through passing outer shell 4 and inner shell 2 with elastic band 11, it is in the radial of lock pin 1 to the fastening when keeping connecting, the effectual axial space of practicing thrift lock pin 1 is convenient for install under constrictive circumstances, and has reduced whole occupation space, has reached the beneficial effect of reducing axial length with the narrow space of adaptation.
Further, annular bulge 22 is close to one side of shell 4 is equipped with buckle 21, buckle 21 with the clearance sets up between the 2 lateral surfaces of inner shell, buckle 21 is kept away from one side of shell 4 is the wedge structure, the shell 4 side be equipped with the draw-in groove 41 of wedge structure adaptation, buckle 21 passes through draw-in groove 41 detachably connects shell 4.
As shown in fig. 2, 3 and 4, the wedge structure of the buckle 21 is clamped in the clamping groove 41, and when the buckle 21 is detached, the buckle is pressed down.
Further, buckle 21 is equipped with four, four buckle 21 set up in four lateral surfaces of inner shell 2, four buckle 21 have played the effect of guaranteeing inner shell 2 and shell 4 connection stability.
Furthermore, one side of the elastic band 11, which is far away from the clamping plate 12, penetrates through the buckle 21, the buckle 21 is provided with a through hole matched with the elastic band 11, the elastic band 11 penetrates through the through hole of the buckle 21, and the elastic band 11 penetrates through the buckle 21 in a tightening state, so that the buckle 21 is abutted to the outer shell 4 towards the clamping groove 41 under the action of elastic force, the wedge-shaped structure of the buckle 21 is clamped more tightly in the clamping groove 41, the inner shell 2 is prevented from being disengaged accidentally, and the beneficial effects that the buckle 21 is kept clamping the inner shell 2 and the outer shell 4 are prevented from being disengaged accidentally are achieved.
Furthermore, the side surface of the locking ring 3 is in threaded connection with a limit screw 31 and a connecting screw 32, the connecting rod 52 is provided with a connecting hole adapted to the connecting screw 32, the connecting screw 32 penetrates through the connecting hole and is in threaded connection with the outer side surface of the inner shell 2, the limit screw 31 is provided with a plurality of limit screws 31, and the limit screws 31 are abutted to the elastic band 11.
The connecting screw 32 keeps the connecting rod 52 and the locking ring 3 relatively fixed and is connected with the outer side surface of the inner shell 2, so that the inner shell 2, the connecting rod 52 and the locking ring 3 are kept relatively fixed, and when the limiting screw 31 is screwed, the elastic band 11 is pressed, so that the elastic band 11 is kept relatively fixed and is prevented from sliding.
Further, the number of the elastic bands 11 is two, two of the elastic bands 11 are arranged on two sides of the ferrule 1, four of the connecting rods 52 are arranged, the four connecting rods 52 are respectively arranged on four ends of the clamping plate 12, and the elastic bands 11 are arranged between two adjacent connecting rods 52 and penetrate through the two buckles 21.
Furthermore, a threading part 51 is arranged on one side of the connecting plate 5 away from the ferrule 1, the threading part 51 is used for leading out the optical fiber on the ferrule 1, the threading part 51 is provided with a threading hole matched with the optical fiber, and the optical fiber is led out from the threading hole.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments in the above-described embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition. In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. An MPO optical fiber connector is characterized by comprising an inserting core (1), an inner shell (2), an outer shell (4), a locking ring (3) and a connecting plate (5), wherein the outer shell (4) and the inner shell (2) are both of a hollow structure, the hollow part of the inner shell (2) is matched with the inserting core (1), the hollow part of the outer shell (4) is matched with the inner shell (2), the inserting core (1) is arranged in the inner shell (2) in a sliding manner, the inner shell (2) is arranged in the outer shell (4) in a sliding manner, the inner shell (2) is detachably connected with the outer shell (4), a clamping plate (12) is fixedly arranged on one side of the inserting core (1), the clamping plate (12) is abutted against the end faces of the inner shell (2) and the outer shell (4), an annular bulge (22) is arranged on the outer side face of the inner shell (2), and the annular bulge (22) is abutted against one side, far away from the clamping plate (12), of the outer shell (4), the locking ring (3) is sleeved on the inner shell (2), and the locking ring (3) is abutted against one side, far away from the outer shell (4), of the annular bulge (22);
a plurality of connecting rods (52) are fixedly arranged on one side of the connecting plate (5), the connecting rods (52) sequentially penetrate through the clamping plate (12), the shell (4) and the annular bulge (22) and are connected with the locking ring (3), the clamping plate (12) is slidably arranged on the connecting rods (52), and a gap is formed between the connecting plate (5) and the clamping plate (12);
an elastic band (11) is fixedly arranged on one side of the clamping plate (12), through holes matched with the elastic band (11) are formed in the shell (4) and the annular protrusions (22), and the elastic band (11) penetrates through the through holes of the shell (4) and the annular protrusions (22) and is connected with the locking ring (3).
2. MPO fiber optic connector according to claim 1, characterized in that the side of the annular protrusion (22) close to the outer shell (4) is provided with a snap (21), the snap (21) is arranged with a gap from the outer side of the inner shell (2), the side of the snap (21) far away from the outer shell (4) is wedge-shaped, the side of the outer shell (4) is provided with a slot (41) adapted to the wedge-shaped, and the snap (21) is detachably connected with the outer shell (4) through the slot (41).
3. The MPO fiber optic connector according to claim 2, wherein four of the catches (21) are provided, and four of the catches (21) are provided on four outer side surfaces of the inner housing (2).
4. The MPO fiber optic connector according to claim 2, wherein the side of the elastic band (11) remote from the card board (12) extends through the catch (21).
5. The MPO fiber optic connector according to claim 1, wherein the locking ring (3) is screwed with a limit screw (31) and a connecting screw (32) on the side surface, the connecting rod (52) is provided with a connecting hole adapted to the connecting screw (32), the connecting screw (32) passes through the connecting hole and is screwed with the outer side surface of the inner shell (2), the limit screw (31) is provided with a plurality of limit screws (31), and the limit screws (31) are abutted with the elastic band (11).
6. The MPO fiber optic connector according to claim 5, wherein the number of the elastic bands (11) is two, two elastic bands (11) are provided on both sides of the ferrule (1), and the number of the connecting rods (52) is four, and four connecting rods (52) are provided at the four ends of the card plate (12), respectively.
7. MPO fiber optic connector according to claim 1, characterized in that the side of the connecting plate (5) away from the ferrule (1) is provided with a threading part (51), and the threading part (51) is used for leading out the optical fiber on the ferrule (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011379852.8A CN112415667B (en) | 2020-11-30 | 2020-11-30 | MPO fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011379852.8A CN112415667B (en) | 2020-11-30 | 2020-11-30 | MPO fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112415667A CN112415667A (en) | 2021-02-26 |
| CN112415667B true CN112415667B (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011379852.8A Active CN112415667B (en) | 2020-11-30 | 2020-11-30 | MPO fiber connector |
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| CN (1) | CN112415667B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115373085B (en) * | 2022-09-06 | 2024-02-23 | 新确精密科技（深圳）有限公司 | Male-female switching jig of MPO connector |
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