CN114518623B

CN114518623B - Optical fiber adapter and optical fiber connector assembly

Info

Publication number: CN114518623B
Application number: CN202210141382.4A
Authority: CN
Inventors: 喻宗杰; 孙莹; 邹峰; 郑涛
Original assignee: Fiberhome Telecommunication Technologies Co Ltd
Current assignee: Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2023-06-20
Anticipated expiration: 2042-02-16
Also published as: CN114518623A

Abstract

The invention relates to a fiber optic adapter and fiber optic connector assembly for interfacing with a fiber optic connector, comprising: the adapter body is provided with a limiting groove and is provided with a locking elastic buckle; the adapter sleeve is sleeved outside the adapter main body, the inner side of the adapter sleeve is provided with a sleeve buckle, and an inner push ring is arranged between the adapter sleeve and the adapter main body; when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring along the insertion direction, so that the inner push ring pushes the outer sleeve buckle to enter the limit groove, and meanwhile, the locking elastic buckle is buckled and held on the optical fiber connector. The optical fiber adapter and the optical fiber connector assembly have the advantages that the optical fiber adapter or the optical fiber connector is not required to be screwed, the optical fiber connector is directly inserted in the insertion direction, the required operation space for locking is small, and the operation is easy under the condition of high density requirement.

Description

Optical fiber adapter and optical fiber connector assembly

Technical Field

The invention relates to the technical field of communication, in particular to an optical fiber adapter.

Background

With the development of the fifth generation mobile network, a large number of access point devices (APs), network cameras and other electronic devices are widely used, and optical fibers are increasingly used, connectors and adapters are used as connection components, so that the convenience of operation is increasingly emphasized.

However, most of the fiber optic connectors and adapters used today are industry standard connectors and adapters. The design of this type of connector and adapter is initially aimed at solving the problems of indoor or optical fiber connection in a protective box (box), opening the box when opening the service, welding in the box, fixing the optical cable, etc. In order to avoid the actions of opening a box, welding, fixing an optical cable and the like during service opening, the outdoor optical fiber connector and the adapter which can be pre-installed outside the box body and used are gradually applied.

In the related art, most of the locking modes adopted in the prior optical fiber connectors and adapters are screwing type, and the screwing type locking modes have the characteristics that finger operation space needs to be reserved around the connectors and the adapters, so that the operation is very difficult under the limited installation space, particularly under the condition of higher density requirement.

Accordingly, there is a need for a new fiber optic adapter and fiber optic connector assembly that overcomes the above-described problems.

Disclosure of Invention

The embodiment of the invention provides an optical fiber adapter and an optical fiber connector assembly, which are used for solving the problem that the operation is very difficult under the condition of limited installation space, particularly under the condition of higher density requirement in the prior art.

In a first aspect, there is provided a fiber optic adapter for interfacing with a fiber optic connector, comprising: the adapter body is provided with a limiting groove and is provided with a locking elastic buckle; the adapter sleeve is sleeved outside the adapter main body, the inner side of the adapter sleeve is provided with a sleeve buckle, and an inner push ring is arranged between the adapter sleeve and the adapter main body; when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring along the insertion direction, so that the inner push ring pushes the outer sleeve buckle to enter the limit groove, and meanwhile, the locking elastic buckle is buckled and held on the optical fiber connector.

In some embodiments, a limiting rib is disposed on one side of the limiting groove of the adapter body, and when the adapter body and the adapter jacket are in an unlocked state, the jacket buckle is blocked on one side of the limiting rib; when the inner push ring pushes the outer sleeve buckle, the outer sleeve buckle passes through the limiting convex rib and enters the limiting groove, so that the adapter outer sleeve is locked with the adapter main body.

In some embodiments, a first wedge surface is provided on the inner side of the jacket buckle, and the first wedge surface gradually extends in an inclined manner towards a direction approaching to the adapter main body along the insertion direction of the optical fiber connector; and a second wedge-shaped surface matched with the first wedge-shaped surface is arranged on one side of the inner push ring, which is close to the outer sleeve buckle.

In some embodiments, the adapter sleeve comprises a main sleeve sleeved outside the adapter main body, the sleeve buckle is connected to the main sleeve, and the sleeve buckle is formed by bending and extending from the connection part of the sleeve buckle and the main sleeve to a direction close to the inner push ring.

In some embodiments, an elastic member is further disposed on the inner side of the adapter sleeve, the elastic member extends along the axial direction of the adapter main body, and one end of the elastic member abuts against the inner push ring, and the other end of the elastic member abuts against the adapter sleeve; when the inner push ring pushes the outer sleeve buckle, the elastic piece pushes the adapter outer sleeve to advance; when the adapter sleeve retreats, the elastic piece pushes the inner push ring to retreat.

In some embodiments, the adapter body has a cavity for accommodating the optical fiber connector therein, and the adapter body has a through slot penetrating through a wall thickness thereof, the through slot being in communication with the cavity, the adapter body further having a stop at the through slot; the locking elastic buckle comprises an elastic arm and a locking protruding point arranged at one end of the elastic arm, the other end of the elastic arm is connected with the adapter main body, the elastic arm is correspondingly positioned at the outer side of the stop part, the locking protruding point is correspondingly accommodated in the through groove, and the locking protruding point partially enters the cavity.

In some embodiments, a pressing ring structure is further disposed on the inner side of the adapter sleeve, and when the sleeve is buckled into the limiting groove, the pressing ring structure is blocked on the outer side of the locking elastic buckle.

In some embodiments, the adapter body is further provided with an inverted buckle, the inverted buckle is provided with a locking surface and a step structure connected with the locking surface, and the step structure and the locking surface form a mounting groove for clamping the box body; when the adapter is installed in the box body, the box body is clamped on the outer side of the step structure.

In some embodiments, the optical fiber adapter further includes an adapter plug, the adapter plug is provided with a first locking groove corresponding to the locking elastic buckle, when the adapter plug is inserted into one end of the adapter main body, the adapter plug pushes the inner push ring along the insertion direction, so that the inner push ring pushes the outer sleeve buckle to enter the limit groove, and meanwhile, the locking elastic buckle is buckled in the first locking groove.

In a second aspect, there is provided a fiber optic connector assembly comprising: the optical fiber adapter and the optical fiber connector are provided with a second locking groove matched with the locking elastic buckle; when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring along the insertion direction, so that the inner push ring pushes the outer sleeve buckle to enter the limit groove, and meanwhile, the locking elastic buckle is buckled and held in the second locking groove.

In some embodiments, the fiber optic connector comprises: the connector body is provided with a first thread structure, and is provided with a positioning key structure which is used for being matched and positioned with the adapter; the connector rear sleeve is provided with a second thread structure, and the second thread structure is in threaded connection with the first thread structure.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides an optical fiber adapter and an optical fiber connector assembly, wherein a limiting groove and a locking elastic buckle are arranged on an adapter main body, and an inner push ring is arranged between the adapter main body and an adapter outer sleeve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an optical fiber adapter according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an unlocked state of an optical fiber adapter according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of another section of an unlocked state of an optical fiber adapter according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a locked state of an optical fiber adapter according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of another section of a locked state of an optical fiber adapter according to an embodiment of the present invention;

FIG. 6 is a schematic front view of an adapter body according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of an adapter sleeve according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of an adapter sleeve according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of an optical fiber connector according to an embodiment of the present invention;

FIG. 10 is a schematic cross-sectional view of an optical fiber connector according to an embodiment of the present invention;

fig. 11 is a schematic cross-sectional structure of a connector body according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of a rear cover of a connector according to an embodiment of the present invention.

In the figure:

100. a fiber optic adapter;

1. an adapter body; 11. a limit groove; 12. locking the elastic buckle; 13. limiting convex ribs; 14. a stopper; 16. inverting the buckle; 161. a locking surface; 162. a step structure; 17. a first butt joint part; 18. a second butt joint part;

2. an adapter sleeve; 21. the outer sleeve is buckled; 211. a first wedge surface; 22. a compression ring structure; 3. an inner push ring; 31. a second wedge surface;

4. an elastic member; 5. an adapter plug; 51. a first locking groove; 6. a pull rope structure;

200. an optical fiber connector;

201. a connector body; 2011. a second locking groove; 2012. a first thread structure; 2013. a positioning key structure; 202. a connector housing;

203. a connector rear sleeve; 2031. a second thread structure; 2032. a glue injection hole; 2033. a staple slot; 204. installing a clamping pin; 205. an optical cable; 206. a connector heat shrinkage tube; 207. a traction cap;

300. and a box body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the invention provides an optical fiber adapter and an optical fiber connector assembly, which can solve the problem that the operation is very difficult under the condition of limited installation space, particularly under the condition of higher density requirement in the prior art by a screwing type locking mode.

Referring to fig. 1 to 3, an optical fiber adapter 100 according to an embodiment of the present invention is provided, where the optical fiber adapter 100 is configured to dock with an optical fiber connector 200, and the optical fiber adapter 100 may include: the adapter body 1 is provided with a limit groove 11, wherein the limit groove 11 can be a through groove or a blind groove, the adapter body 1 is provided with a locking elastic buckle 12, the locking elastic buckle 12 protrudes from a connecting position of the adapter body 1 to the inside of the adapter body 1 so as to be matched and locked with the optical fiber connector 200, in the embodiment, the adapter body 1 can be provided with a first abutting part 17 used for being matched with the outdoor preformed end optical fiber connector 200 and a second abutting part 18 used for being matched with a standard SC connector, and the limit groove 11 and the locking elastic buckle 12 are both arranged on the first abutting part 17; and an adapter jacket 2, which can be sleeved outside the adapter body 1, in this embodiment, the adapter jacket 2 is mainly sleeved outside the first abutting portion 17, the inner side of the adapter jacket 2 may have a jacket buckle 21, and an inner push ring 3 is disposed between the adapter jacket 2 and the adapter body 1, that is, a gap is formed between the adapter jacket 2 and the adapter body 1, and the inner push ring 3 may be located in the gap; when the optical fiber connector 200 is inserted into the optical fiber adapter 100, such that the optical fiber connector 200 is docked with the first docking portion 17, the optical fiber connector 200 pushes the inner push ring 3 along the insertion direction, so that the inner push ring 3 pushes the outer sleeve buckle 21 to enter the limiting groove 11, and at the same time, the locking elastic buckle 12 is buckled on the optical fiber connector 200. It will be appreciated that the inner push ring 3 may directly contact the outer sleeve buckle 21 to push the outer sleeve buckle 21 to move, or the inner push ring 3 may indirectly contact the outer sleeve buckle 21 to push the outer sleeve buckle 21 to move.

In this embodiment, since the limiting groove 11 and the locking elastic buckle 12 are disposed on the adapter body 1, and the inner push ring 3 is disposed between the adapter body 1 and the adapter jacket 2, when the optical fiber connector 200 is inserted into the optical fiber adapter 100, the optical fiber connector 200 can push the inner push ring 3 along the insertion direction (i.e. along a straight line), so that the jacket buckle 21 on the adapter jacket 2 can be driven to enter the limiting groove 11, thereby realizing the locking of the adapter jacket 2 and the adapter body 1, without adding additional operation steps such as screwing and the like, so as to perform the locking, the operation is more convenient, meanwhile, the locking elastic buckle 12 can be buckled on the optical fiber connector 200, so as to realize the locking of the optical fiber adapter 100 and the optical fiber connector 200.

Referring to fig. 2 and 5, in some embodiments, the adapter body 1 may be provided with a limiting rib 13 at one side of the limiting groove 11, when the adapter body 1 and the adapter jacket 2 are in an unlocked state, the jacket buckle 21 is blocked at one side of the limiting rib 13, in this embodiment, the limiting rib 13 is located at the rear of the limiting groove 11, and when the adapter body 1 and the adapter jacket 2 are in an unlocked state, the jacket buckle 21 is located at one side of the limiting rib 13 away from the limiting groove 11; when the inner push ring 3 pushes the outer sleeve buckle 21, the outer sleeve buckle 21 moves forward beyond the limit rib 13 to enter the limit groove 11, so that the adapter outer sleeve 2 is locked with the adapter main body 1. In this embodiment, through setting up spacing protruding muscle 13, guaranteed that overcoat buckle 21 is difficult for getting into spacing groove 11 in the unblock state, and unblock and the separation of locking two kinds of states are obvious, simultaneously, after overcoat buckle 21 gets into spacing groove 11, because the fender of spacing protruding muscle 13, overcoat buckle 21 also is difficult for deviating from spacing groove 11.

Preferably, the front and back sides of the spacing protruding rib 13 are respectively provided with an inclined plane and a vertical stop surface, when the adapter sleeve 2 is in an unlocking state, the sleeve buckle 21 is propped against the stop surface, when the adapter sleeve 2 is in a locking state, the sleeve buckle 21 is positioned in the spacing groove 11, and due to the inclined plane arranged on the front side of the spacing protruding rib 13, the adapter sleeve 2 can apply a retreating force to the adapter sleeve 2 when the adapter sleeve 2 is required to be unlocked, and the sleeve buckle 21 can slide out from the spacing groove 11 along the inclined plane, so that unlocking is realized.

On the basis of the above technical solution, as shown in fig. 2, 7 and 8, the inner side of the jacket buckle 21 may be provided with a first wedge surface 211, the first wedge surface 211 gradually extends obliquely toward the direction approaching the adapter body 1 along the insertion direction of the optical fiber connector 200, in this embodiment, the optical fiber connector 200 is inserted into the optical fiber adapter 100 from back to front along the axial direction of the adapter body 1, and the first wedge surface 211 extends obliquely from back to front and inward on the jacket buckle 21; the side of the inner push ring 3, which is close to the outer sleeve buckle 21, is provided with a second wedge surface 31 matched with the first wedge surface 211, that is, the second wedge surface 31 is approximately parallel to the first wedge surface 211, so that when the inner push ring 3 moves forward, the front end of the second wedge surface 31 contacts with the rear end of the first wedge surface 211, and as the inner push ring 3 moves forward, the second wedge surface 31 gradually lifts the first wedge surface 211, that is, lifts the outer sleeve buckle 21, and when the innermost side of the outer sleeve buckle 21 exceeds the outer side edge of the limiting rib 13, the outer sleeve buckle 21 passes over the limiting rib 13 and enters the limiting groove 11. In this embodiment, the first wedge surface 211 and the second wedge surface 31 are provided, so that the inner push ring 3 easily lifts the outer sleeve buckle 21, and drives the outer sleeve buckle 21 into the limiting groove 11.

Referring to fig. 2 and 4, in some alternative embodiments, the adapter sleeve 2 may include a main sleeve sleeved outside the adapter body 1, the sleeve buckle 21 is connected to the main sleeve, in this embodiment, the sleeve buckle 21 is integrally formed with the main sleeve, and the sleeve buckle 21 is formed by bending and extending from a connection position with the main sleeve in a direction close to the inner push ring 3, that is, the sleeve buckle 21 is similar to a spring arm, and is bent and extended to form a certain length, and a gap may be provided between the sleeve buckle 21 and the main sleeve, so that the sleeve buckle 21 has better elasticity.

Referring to fig. 4, further, an elastic member 4 may be further disposed on the inner side of the adapter jacket 2, where the elastic member 4 extends along the axial direction of the adapter body 1, and one end of the elastic member 4 abuts against the inner push ring 3, and the other end abuts against the adapter jacket 2, that is, the elastic member 4 is in a compressed state on the inner side of the adapter jacket 2, and the elastic member 4 has a certain elasticity, and in this embodiment, the elastic member 4 is preferably a spring, and in other embodiments, the elastic member 4 may also be other elastic members; when the inner push ring 3 pushes the outer sleeve buckle 21, the elastic piece 4 pushes the adapter outer sleeve 2 to advance, and as the front end of the elastic piece 4 contacts the adapter outer sleeve 2, the rear end of the elastic piece 4 contacts the inner push ring 3, when the inner push ring 3 advances, the inner push ring 3 also pushes the elastic piece 4 to compress, and when the outer sleeve buckle 21 passes over the limit rib 13, the adapter outer sleeve 2 advances to a locking state under the elastic force of the elastic piece 4; when the adaptor sleeve 2 is retracted (wherein the adaptor sleeve 2 can be manually driven to retract), the elastic member 4 is compressed by the rearward movement of the adaptor sleeve 2, and under the action of elastic force, the elastic member 4 can push the inner push ring 3 to retract, so that the adaptor sleeve 2 and the adaptor main body 1 are unlocked. In this embodiment, through setting up elastic component 4 for elastic component 4 can drive adapter overcoat 2 forward voluntarily, and drives interior push ring 3 backward voluntarily, has reduced the part of motion, has reduced adaptation assembly cost and material cost.

In some embodiments, as shown in fig. 3, the adaptor body 1 may have a cavity for accommodating the optical fiber connector 200, and the adaptor body 1 has a through slot penetrating through a wall thickness thereof, the through slot is communicated with the cavity, and the adaptor body 1 is further provided with a stop portion 14 at the through slot, where the stop portion 14 may be suspended, that is, one end of the stop portion 14 is connected with the adaptor body 1, and the other part is in a free state, and the stop portion 14 may also be connected with the adaptor body 1 on at least three sides; the locking elastic buckle 12 may include an elastic arm and a locking protruding point disposed at one end of the elastic arm, where the elastic arm and the locking protruding point are preferably integrally formed, the other end of the elastic arm is connected to the adapter body 1, and the elastic arm is correspondingly located on the outer side of the stopping portion 14, that is, the stopping portion 14 is stopped on the inner side of the elastic arm, where the stopping portion 14 may be disposed parallel to the elastic arm, the stopping portion 14 may also be disposed in various different curved shapes, the locking protruding point is correspondingly accommodated in the through slot, and the locking protruding point portion enters the cavity, so as to be convenient for locking and matching with the optical fiber connector 200. In this embodiment, the stopper 14 is provided on the inner side of the elastic arm, so that the elastic arm is prevented from being excessively bent inward, and the service life of the locking elastic buckle 12 can be prolonged.

Referring to fig. 3 and fig. 4, in some alternative embodiments, a compression ring structure 22 may be further disposed on the inner side of the adapter sleeve 2, where the compression ring structure 22 is preferably integrally formed with the adapter sleeve 2, and when the sleeve buckle 21 enters the limiting slot 11, the compression ring structure 22 stops on the outer side of the locking elastic buckle 12, so as to prevent the locking elastic buckle 12 from bouncing up, thereby realizing a locking function; when the adapter sleeve 2 retreats, the compression ring structure 22 retreats together, leaving a space outside the locking elastic buckle 12, so that the locking elastic buckle 12 is in a sprung state.

Referring to fig. 4 and 6, in some embodiments, the adapter body 1 may further be provided with an inverted buckle 16, where the inverted buckle 16 is disposed on the second docking portion 18 of the adapter body 1, the inverted buckle 16 has elasticity, and the inverted buckle 16 has a locking surface 161 and a step structure 162 connected to the locking surface 161, and the step structure 162 and the locking surface 161 form a mounting groove for clamping the box 300, and the locking surface 161 is substantially perpendicular to the step structure 162; when the adapter is mounted on the box 300, the box 300 is clamped in the mounting groove, the box 300 is located at the outer side of the step structure 162, the box 300 can occupy the space at the outer side of the step structure 162, when the inverted buckle 16 is stressed, the box 300 can limit the step structure 162, the step structure 162 further limits the inverted buckle 16, so that the inverted buckle 16 cannot be turned outwards, the inverted buckle 16 is prevented from being damaged, and the optical fiber adapter 100 cannot be separated from the box 300. Because the optical fiber adapter 100 and the box 300 adopt the matching structure of the inverted buckle 16, the inverted buckle 16 adopts the step structure, the procedures of nuts and assembling nuts are reduced, the assembly of the optical fiber adapter 100 and the box 300 is simplified, the tensile strength of the assembly of the optical fiber adapter 100 and the box 300 is ensured, and the material cost and the assembly cost are reduced. In this embodiment, the adapter body 1 is further provided with a sealing groove, and a sealing ring is disposed in the sealing groove, so that when the optical fiber adapter 100 is mounted on the box 300, the sealing ring can realize sealing between the optical fiber adapter 100 and the box 300.

In some alternative embodiments, as shown in fig. 4, the optical fiber adapter 100 may further include an adapter plug 5, where the adapter plug 5 is provided with a first locking groove 51 corresponding to the locking elastic buckle 12, where the adapter plug 5 includes an inner ring and an outer ring, the first locking groove 51 is provided on the inner ring, when the adapter plug 5 is inserted into one end of the adapter body 1, the inner ring of the adapter plug 5 enters the interior of the adapter body 1, the outer ring of the adapter plug 5 pushes the inner push ring 3 along the insertion direction, so that the inner push ring 3 pushes the jacket buckle 21 into the limit groove 11, and when the jacket buckle 21 enters the limit groove 11, the locking elastic buckle 12 is buckled on the first locking groove 51, so as to lock the adapter jacket 2 and the adapter body 1 and lock the adapter body 1 and the adapter plug 5. The adapter plug 5 can play a role in dust prevention, and the locking structure of the adapter plug 5 and the adapter main body 1 is the same as the locking structure of the adapter main body 1 and the optical fiber connector 200, so that the locking structure which is independently arranged on the adapter plug 5 and matched with the adapter main body is saved, and the structure of the whole optical fiber adapter 100 is simplified.

Further, the pull rope structure 6 can be arranged on the adapter sleeve 2, the pull rope structure 6 is pulled, or the adapter sleeve 2 is pulled, and the adapter sleeve 2 can be moved to the initial position to achieve unlocking.

The embodiment of the invention also provides an optical fiber connector assembly, which can comprise: the optical fiber adapter 100 provided in any of the above embodiments, and the optical fiber connector 200, the optical fiber connector 200 may have a second locking groove 2011 that mates with the locking elastic buckle 12; when the optical fiber connector 200 is inserted into the optical fiber adapter 100, the optical fiber connector 200 pushes the inner push ring 3 along the insertion direction, so that the inner push ring 3 pushes the outer sleeve buckle 21 to enter the limiting groove 11, and simultaneously, the locking elastic buckle 12 is buckled and held in the second locking groove 2011. In this embodiment, referring to fig. 9 to 11, the optical fiber connector 200 includes a connector body 201 and a connector housing 202 sleeved outside the connector body 201, wherein a second locking groove 2011 is provided on the connector body 201, when the optical fiber connector 200 is inserted into the optical fiber adapter 100, the connector body 201 enters into a cavity in the adapter body 1, the connector housing 202 is inserted between the adapter body 1 and the adapter housing 2, and the connector housing 202 can push the inner push ring 3 to move forward, so that the housing buckle 21 enters into the limit groove 11, locking of the adapter body 1 and the adapter housing 2 is achieved, and meanwhile, the locking elastic buckle 12 enters into the cavity to be locked with the second locking groove 2011, so as to complete the butt locking of the optical fiber connector 200 and the optical fiber adapter 100. The optical fiber connector 200 is directly inserted into the optical fiber adapter 100 or the optical fiber connector 200 along the insertion direction without screwing the optical fiber adapter 100 or the optical fiber connector 200, so that the required operation space for locking is small, and the optical fiber adapter is easy to operate under the condition of high density requirement, and has a wide market.

Further, referring to fig. 11, the connector body 201 may have a first thread structure 2012, and the connector body 201 is provided with a positioning key structure 2013, where the positioning key structure 2013 is used for being positioned in cooperation with the adapter, and the positioning key structure 2013 may be used as a ferrule insertion alignment structure to realize ferrule angular alignment when the optical fiber connector 200 is inserted, so as to ensure good optical performance, and the optical fiber connector 200 may be simply aligned visually when inserted, and has good error-proofing operation measures, so as to facilitate operation. The optical fiber connector 200 may further include a connector rear sleeve 203, where the connector rear sleeve 203 has a second thread structure 2031, the second thread structure 2031 is in threaded connection with the first thread structure 2012, and the connector body 201 and the connector rear sleeve 203 adopt a detachable threaded connection manner, so that the connector body 201 and the connector rear sleeve 203 are connected more reliably.

In some alternative embodiments, referring to fig. 12, the connector rear cover 203 may be provided with a staple groove 2033, when the optical cable 205 is inserted into the connector rear cover 203, the optical cable 205 and the connector rear cover 203 may be fixed by inserting the mounting staple 204 into the staple groove 2033, and the mounting staple 204 has a claw structure, which can hold the optical cable 205 tightly for fixing the optical cable 205, and when more powerful fixing is required, the optical cable 205 may also be fixed by dispensing through a glue injection hole 2032 on the connector rear cover 203, and finally the connector heat shrinkage tube 206 is heat shrunk for sealing the optical cable 205 and reinforcing the fixing of the optical cable 205. The fixing of the optical cable 205 connector and the optical cable 205 adopts a structure of matching the installation clamp 204 with the connector heat shrinkage tube 206, so that the assembly of the optical fiber connector 200 is simplified compared with the traditional crimping structure, the assembly efficiency is improved, and the material cost and the assembly cost of the connector are reduced.

Referring to fig. 10 and 11, in this embodiment, an inner bushing and a ferrule assembly may be further disposed in the connector body 201, a connector tail sleeve may be further disposed outside the connector tail sleeve 203, and the optical fiber connector 200 further includes a pulling cap 207 connected by a connecting rope. Sealing structures are arranged between the connector body 201 and the connector outer sleeve 202, between the connector body 201 and the traction cap 207 and at the joint of the traction cap 207 and the connector outer sleeve 202.

In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fiber optic adapter for interfacing with a fiber optic connector, comprising:

an adapter main body (1) which is provided with a limit groove (11), wherein the adapter main body (1) is provided with a locking elastic buckle (12);

the adapter sleeve (2) is sleeved outside the adapter main body (1), an sleeve buckle (21) is arranged on the inner side of the adapter sleeve (2), and an inner push ring (3) is arranged between the adapter sleeve (2) and the adapter main body (1);

when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring (3) along the insertion direction, so that the inner push ring (3) pushes the outer sleeve buckle (21) to enter the limit groove (11), and meanwhile, the locking elastic buckle (12) is buckled and held on the optical fiber connector;

a limiting convex rib (13) is arranged on one side of the limiting groove (11) of the adapter main body (1), and when the adapter main body (1) and the adapter jacket (2) are in an unlocking state, the jacket buckle (21) is blocked on one side of the limiting convex rib (13);

when the inner push ring (3) pushes the outer sleeve buckle (21), the outer sleeve buckle (21) passes through the limiting convex rib (13) to enter the limiting groove (11), so that the adapter outer sleeve (2) and the adapter main body (1) are locked.

2. The fiber optic adapter of claim 1, wherein:

a first wedge surface (211) is arranged on the inner side of the jacket buckle (21), and the first wedge surface (211) gradually extends in an inclined way towards the direction approaching the adapter main body (1) along the insertion direction of the optical fiber connector;

and a second wedge-shaped surface (31) matched with the first wedge-shaped surface (211) is arranged on one side of the inner push ring (3) close to the outer sleeve buckle (21).

3. The fiber optic adapter of claim 1, wherein:

the adapter sleeve (2) comprises a main sleeve sleeved outside the adapter main body (1), the sleeve buckle (21) is connected to the main sleeve, and the sleeve buckle (21) is formed by bending and extending from the joint of the sleeve buckle and the main sleeve to the direction close to the inner push ring (3).

4. The fiber optic adapter of claim 1, wherein:

an elastic piece (4) is further arranged on the inner side of the adapter jacket (2), the elastic piece (4) extends along the axial direction of the adapter main body (1), one end of the elastic piece (4) is propped against the inner push ring (3), and the other end of the elastic piece is propped against the adapter jacket (2);

when the inner push ring (3) pushes the outer sleeve buckle (21), the elastic piece (4) pushes the adapter outer sleeve (2) to advance; when the adapter sleeve (2) retreats, the elastic piece (4) pushes the inner push ring (3) to retreat.

5. The fiber optic adapter of claim 1, wherein:

the adapter body (1) is internally provided with a cavity for accommodating the optical fiber connector, the adapter body (1) is provided with a through groove penetrating through the wall thickness of the cavity, the through groove is communicated with the cavity, and the adapter body (1) is further provided with a stop part (14) at the through groove;

the locking elastic buckle (12) comprises an elastic arm and a locking protruding point arranged at one end of the elastic arm, the other end of the elastic arm is connected with the adapter main body (1), the elastic arm is correspondingly positioned at the outer side of the stop part (14), the locking protruding point is correspondingly accommodated in the through groove, and the locking protruding point partially enters the cavity.

6. The fiber optic adapter of claim 1, wherein:

the inner side of the adapter sleeve (2) is also provided with a compression ring structure (22), and when the sleeve buckle (21) enters the limiting groove (11), the compression ring structure (22) is blocked at the outer side of the locking elastic buckle (12).

7. The fiber optic adapter of claim 1, wherein:

the adapter body (1) is further provided with an inverted buckle (16), the inverted buckle (16) is provided with a locking surface (161) and a step structure (162) connected with the locking surface (161), and the step structure (162) and the locking surface (161) form a mounting groove for clamping the box body (300);

when the adapter is mounted on the box body (300), the box body (300) is clamped on the outer side of the step structure (162).

8. The fiber optic adapter of claim 1, wherein:

the optical fiber adapter also comprises an adapter plug (5), the adapter plug (5) is provided with a first locking groove (51) corresponding to the locking elastic buckle (12),

when the adapter plug (5) is inserted into one end of the adapter main body (1), the adapter plug (5) pushes the inner push ring (3) along the insertion direction, so that the inner push ring (3) pushes the outer sleeve buckle (21) to enter the limit groove (11), and meanwhile, the locking elastic buckle (12) is buckled in the first locking groove (51).

9. An optical fiber connector assembly, comprising:

the fiber optic adapter of claim 1, and a fiber optic connector having a second locking groove (2011) that mates with the locking spring catch (12);

when the optical fiber connector is inserted into the optical fiber adapter, the optical fiber connector pushes the inner push ring (3) along the insertion direction, so that the inner push ring (3) pushes the outer sleeve buckle (21) to enter the limit groove (11), and meanwhile, the locking elastic buckle (12) is buckled and held in the second locking groove (2011).

10. The fiber optic connector assembly of claim 9, wherein the fiber optic connector comprises:

-a connector body (201), the connector body (201) having a first thread structure (2012), and the connector body (201) being provided with a positioning key structure (2013), the positioning key structure (2013) being for co-operative positioning with the adapter;

and a connector rear sleeve (203), the connector rear sleeve (203) having a second thread structure (2031), the second thread structure (2031) being in threaded connection with the first thread structure (2012).