CN217879730U

CN217879730U - MPO connector

Info

Publication number: CN217879730U
Application number: CN202221362970.2U
Authority: CN
Inventors: 张业; 韩绍友
Original assignee: Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-11-22
Anticipated expiration: 2032-06-01

Abstract

An embodiment of the utility model provides a MPO connector, locate the outside shell of inner shell and be used for supporting the auxiliary spring who pushes away the shell to the front end direction elasticity of inner shell including inner shell, the movable sleeve of the inner chamber that link up around having, the outer wall of inner shell still is provided with and is used for colluding the complex buckle groove with the adapter correspondence that corresponds, and the shell covers the buckle groove under auxiliary spring's spring action, and MPO connector still includes the movable sleeve that the movable sleeve located the shell outside and sets up in the one end of movable sleeve and be used for supplying the user's application of force to make the movable sleeve along the axial displacement's of shell action pole, at least one side outer wall of shell is equipped with linkage portion, the corresponding side of movable sleeve be equipped with corresponding order about the cooperation of linkage portion the shell moves back and follows the drive division that the outside in buckle groove was putd aside. The embodiment facilitates unlocking with the adapter.

Description

MPO connector

Technical Field

The embodiment of the utility model provides a relate to fiber connector technical field, especially relate to a MPO connector.

Background

An existing MPO connector generally includes an inner housing having a through cavity, an outer housing movably sleeved outside the inner housing, and an auxiliary spring disposed in a gap between the inner housing and the outer housing and configured to elastically push the outer housing toward a front end of the inner housing; in addition, the inner shell is connected with the corresponding adapter, the outer wall of the inner shell is also provided with a buckling groove which is used for correspondingly buckling and matching with the corresponding adapter, and the outer shell covers the buckling groove under the elastic force action of the auxiliary spring; when the MPO connector is connected with the adapter, an assembler finishes plugging and unplugging the MPO connector and the adapter by holding the shell of the MPO connector.

However, in practical implementation, the inventor finds that, as the size of the current MPO connector is gradually reduced too small, the process of unlocking the MPO connector and the adapter by an assembler through holding the housing by hand is very difficult, and the overall assembly difficulty is high.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides a MPO connector, conveniently realizes with the unblock of adapter.

In order to solve the technical problem, an embodiment of the utility model provides a following technical scheme: an MPO connector comprises an inner shell with a front inner cavity and a rear inner cavity, an outer shell and an auxiliary spring, wherein the inner shell is arranged outside the inner shell, the auxiliary spring is arranged in a gap between the inner shell and the outer shell and used for elastically pushing the outer shell towards the front end direction of the inner shell, the outer wall of the inner shell is further provided with a buckle groove used for being in buckling fit with a corresponding adapter, the outer shell covers the buckle groove under the elastic action of the auxiliary spring, the MPO connector further comprises a movable sleeve arranged outside the outer shell and an operating rod arranged at one end of the movable sleeve and used for enabling a user to apply force to enable the movable sleeve to move along the axial direction of the outer shell, at least one side outer wall of the outer shell is provided with a linkage part, and the corresponding side of the movable sleeve is provided with a driving part which is matched with the linkage part to correspondingly drive the outer shell to move backwards and move away from the outer side of the buckle groove.

Further, the linkage part is a boss, and the driving part is an opening into which the boss is inserted; or the linkage part is provided with an opening, and the driving part is a boss correspondingly inserted into the opening.

Furthermore, the MPO connector also comprises a stop piece with the front end part inserted in the tail end part of the inner cavity of the inner shell, the tail end of the movable sleeve is also protruded towards the inside of the movable sleeve to form a limiting step, and when the movable sleeve moves to the front limit position towards the front end of the inner shell along with the outer shell under the elastic force action of the auxiliary spring, the limiting step is correspondingly abutted against the tail end face of the stop piece to limit.

Furthermore, one side of the movable sleeve is provided with an expansion joint for the movable sleeve to elastically deform and to be sleeved on the outer side of the shell.

Furthermore, the operating rod is a straight rod body which is formed by extending a preset length from the position, close to one side, of the tail end of the movable sleeve to the rear end along the axial direction of the shell.

Furthermore, a clamping groove is formed in the outer wall of the inner shell, a barb correspondingly accommodated in the clamping groove is arranged on the inner wall of the outer shell, and the barb abuts against the inner wall of the groove at one side, close to the front end of the inner shell, of the clamping groove under the action of the auxiliary spring; the tail end edge of the inner shell is provided with a limiting flange, and the inner wall of the tail end of the outer shell is provided with a stop block which is used for being matched with the limiting flange to limit the backward limit position of the outer shell moving towards the rear end of the inner shell so as to prevent the auxiliary spring from being excessively compressed.

Further, two relative outer wall tail end of inner shell are provided with the back holding tank respectively, the outer wall of inner shell is still outwards protruding to be formed with the dog at the tail end of back holding tank, the back holding tank extends to the dog, it is provided with the front holding tank to correspond on two relative inner walls of outer shell, front holding tank and back holding tank intercommunication constitute jointly and hold assist spring's spring groove.

Furthermore, the MPO connector also comprises a plug-in component assembled in the front end part of the inner cavity of the inner shell and extending out of the front end opening of the inner cavity, and a main spring arranged between the plug-in component and the stop piece.

Furthermore, the tail end of the stop member is provided with a stop portion for stopping the end surface of the inner shell, and two opposite side walls of the stop member are respectively provided with a positioning bump which extends from the middle of the front end surface of the stop portion to the front end direction of the stop member along the axial direction by a preset length; and a positioning groove matched with the positioning lug in shape is arranged at the position of the inner cavity corresponding to the positioning lug.

Further, the MPO connector may further include a wire sleeve connected to the rear end of the stopper.

After the technical scheme is adopted, the embodiment of the utility model provides an at least, following beneficial effect has: the embodiment of the utility model provides a through establish the movable sleeve in the outside cover of shell, when operating personnel need with MPO connector unlock, make along the axial of shell towards the tail end of inner shell move through the action bars application of force to movable sleeve one end, the drive division on the movable sleeve mutually assembles the combination with linkage portion on the shell, makes the movable sleeve drive the shell overcome remove from the outside of buckle groove after the elasticity of auxiliary spring, thereby can make the buckle groove on adapter and the inner shell break away from the buckle, operating personnel can realize the unblock to MPO connector through applying force to the action bars, convenient operation; and after the force application is released, the auxiliary spring is elastically restored to push the shell to cover the buckling groove again.

Drawings

Fig. 1 is a schematic view of a disassembled structure of an alternative embodiment of the MPO connector of the present invention.

Fig. 2 is a schematic view of an alternative embodiment of the MPO connector of the present invention.

Fig. 3 is a schematic cross-sectional view of an alternative embodiment of the MPO connector of the present invention.

Fig. 4 is a schematic cross-sectional view of an alternative embodiment of the MPO connector of the present invention.

Fig. 5 is a schematic cross-sectional view of an alternative embodiment of the MPO connector of the present invention, with the active sleeve removed from the outside of the snap groove.

Fig. 6 is a schematic structural view of a movable sleeve and an operating lever according to an alternative embodiment of the MPO connector of the present invention.

Fig. 7 is a schematic view of an alternative embodiment of the MPO connector housing of the present invention.

Fig. 8 is a schematic structural view of an inner housing according to an alternative embodiment of the MPO connector of the present invention.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended to limit the present invention, and features in the embodiments and examples may be combined with each other in the present application without conflict.

As shown in fig. 1-6, an optional embodiment of the present invention provides an MPO connector, including an inner shell 1 having a front and a rear through inner cavities 10, a movable sleeve disposed on an outer shell 2 outside the inner shell 1 and an auxiliary spring 3 disposed in a gap between the inner shell 1 and the outer shell 2 for elastically pushing the outer shell 2 toward a front end of the inner shell 1, an outer wall of the inner shell 1 is further provided with a locking groove 12 for corresponding to a corresponding adapter to lock the locking groove, the outer shell 2 covers the locking groove 12 under an elastic force of the auxiliary spring 3, the MPO connector further includes a movable sleeve 4 disposed on an outer side of the outer shell 2 and an operating rod 5 disposed at one end of the movable sleeve 4 for a user to apply force to urge the movable sleeve 4 to move along an axial direction of the outer shell 2, at least one outer wall of the outer shell 2 is provided with a linkage portion 20, and a corresponding side of the movable sleeve 4 is provided with a driving portion 40 for correspondingly driving the outer shell 2 to move backward and be locked outside the locking groove 12.

The embodiment of the utility model provides a through establish the movable sleeve 4 in the outside cover of shell 2, when operating personnel need with the adapter with MPO connector unlock, through the application of force make along the axial of shell 2 the tail end of inner shell 1 move to the action bars 5 application of force of 4 one ends of movable sleeve, the drive division 40 on the movable sleeve 4 mutually supports with linkage portion 20 on the shell 2, makes the movable sleeve 4 drive the shell 2 overcome behind the elasticity of auxiliary spring 3 remove from the outside of buckle groove 12, thereby can make the adapter break away from the buckle with buckle groove 12 on the inner shell 1, operating personnel can realize the unblock to the MPO connector through applying force to action bars 5, convenient operation; after the force is released, the auxiliary spring 3 is elastically restored to push the housing 2 to cover the buckling groove 12 again.

In an alternative embodiment of the present invention, as shown in fig. 1 and 3, the linkage portion 20 is a boss, and the driving portion 40 is an opening for inserting the boss; or the linkage part 20 is an opening, and the driving part 40 is a boss correspondingly inserted into the opening. In this embodiment, one of the linkage portion 20 and the driving portion 40 is provided with an opening, and the other is provided with a boss, and the linkage portion and the driving portion are assembled and matched with each other, so that the linkage and the matching of the shell 2 and the movable sleeve 4 can be realized. In the embodiment of fig. 1-7, the linkage portion 20 is a boss and the driving portion 40 is an aperture.

In an optional embodiment of the present invention, as shown in fig. 1 and 3, the MPO connector further includes a stop member 6 inserted into the rear end of the inner cavity of the inner shell 1 at the front end thereof, the rear end of the movable sleeve 4 is further formed with a limit step 42 protruding toward the inside of the movable sleeve 4, the movable sleeve 4 is located along with the outer shell 2 under the elastic force of the auxiliary spring 3 toward the front end of the inner shell 1 when moving to the forward limit position, the limit step 42 is correspondingly abutted against the rear end face of the stop member 6 for limiting. In this embodiment, the limiting step 42 is further disposed at the tail end of the movable sleeve 4, and when the movable sleeve 4 moves to the forward limit position toward the front end of the inner shell 1 along with the outer shell 2 under the elastic force of the auxiliary spring 3, the limiting step 42 can be abutted against the tail end surface of the stop member 6 to realize limiting, so as to prevent the movable sleeve 4 from coming off from the front end of the outer shell 2; and the operator can also insert the front end of the MPO connector into the adapter when applying force to the operating rod 5, so that the locking with the adapter is realized, and the operation is convenient.

In an alternative embodiment of the present invention, as shown in fig. 6, an expansion joint 44 is disposed at one side of the movable sleeve 4 for elastically deforming the movable sleeve 4 and covering the outer side of the housing 2. In this embodiment, the expansion joint 44 is provided, and the movable sleeve 4 is sleeved outside the housing 2 by elastic expansion deformation, so that the assembly is relatively convenient.

In an alternative embodiment of the present invention, as shown in fig. 6, the operation rod 5 is a straight rod body extending from the rear end of the movable sleeve 4 to the rear end along the axial direction of the housing 2 by a predetermined length from one side. In this embodiment, the operating rod 5 is arranged at the tail end of the movable sleeve 4, an operator can unlock the MPO connector and the adapter by pulling the operating rod 5, and can lock the MPO connector and the adapter by pushing the operating rod 5, so that the operation is relatively convenient; moreover, the length of the operating lever 5 can also be flexibly designed to facilitate assembly by the operator.

In an optional embodiment of the present invention, as shown in fig. 5, 7 and 8, a clamping groove 14 is disposed on an outer wall of the inner shell 1, a barb 22 correspondingly accommodated in the clamping groove 14 is disposed on an inner wall of the outer shell 2, and the barb 22 abuts against an inner wall of the clamping groove 14 on a side close to a front end of the inner shell 1 under the action of the auxiliary spring 3; a limit flange 16 is arranged at the tail end edge of the inner shell 1, and a stop block 24 which is used for cooperating with the limit flange 16 to limit the backward limit position of the outer shell 2 moving to the rear end of the inner shell 1 so as to excessively compress the auxiliary spring 3 is arranged on the inner wall of the tail end of the outer shell 2. In this embodiment, the barb 22 and the locking groove 14 cooperate to effectively prevent the outer shell 2 from coming off from the front end of the inner shell 1; the limit flange 16 is matched with the stop block 24, so that the outer shell 2 can be effectively prevented from being separated from the tail end of the inner shell 1, and the maximum moving stroke of the outer shell 2 moving to the rear end of the inner shell 1 is limited.

In an optional embodiment of the present invention, as shown in fig. 1, fig. 3 and fig. 7, the tail ends of the two opposite outer walls of the inner shell 1 are respectively provided with a rear accommodating groove 17a, the outer wall of the inner shell 1 is further formed with a stopper 18 protruding outward at the tail end of the rear accommodating groove 17, the rear accommodating groove 17a extends to the stopper 18, two opposite inner walls of the outer shell 2 are correspondingly provided with a front accommodating groove 17b, and the front accommodating groove 17a and the rear accommodating groove 17b are communicated to form a spring groove 17 accommodating the auxiliary spring 3. In this embodiment, the groove wall of the spring groove 17 can control the deformation of the auxiliary spring 3 when the outer shell 2 moves to the rear end of the inner shell 1, so that the auxiliary spring 3 can be compressed and extended along the preset compression direction, and the auxiliary spring 3 can also be effectively positioned.

In an alternative embodiment of the present invention, as shown in fig. 1 and 3, the MPO connector further includes a plug assembly 7 assembled in the front end portion of the inner cavity 10 of the inner housing 1 and extending from the front end opening of the inner cavity 10, and a main spring 8 disposed between the plug assembly 7 and the stopper 6. In this embodiment, the main spring 8 elastically pushes the plug assembly 7 to enable the plug assembly 7 to be fully butted with the inside of the adapter socket, and meanwhile, when the plug assembly 7 receives a rigid force in the plugging process, the main spring 8 can buffer the rigid force received by the plug assembly 7, so as to prevent the plug assembly 4 from being damaged.

In an alternative embodiment of the present invention, as shown in fig. 1 and 7, the end of the stop member 6 is provided with a stop portion 60 for stopping the end surface of the inner shell 1, and the two opposite side walls of the stop member 6 are respectively provided with a positioning protrusion 62 axially extending from the middle of the front end surface of the stop portion 60 to the front end direction of the stop member 6 by a predetermined length; the inner cavity 10 is provided with a positioning groove 19 matched with the positioning projection 62 in shape at a position corresponding to the positioning projection 62. In this embodiment, by providing the stopping portion 60, the length of the stopper 6 inserted into the inner casing 1 can be effectively limited; and the positioning lug 62 is matched with the positioning groove 19, so that the connection strength of the stop piece 6 and the inner shell 1 can be effectively enhanced, and the straight pull resistance and the side pull resistance are strong.

In an alternative embodiment of the invention, as shown in fig. 1, the MPO connector further comprises a wire sleeve 9 connected to the tail end of the stopper 6. In this embodiment, still through setting up line sleeve 9, make things convenient for the line of walking of optic fibre cable, avoid the cable to twist reverse.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.

Claims

1. An MPO connector comprises an inner shell with a front inner cavity and a rear inner cavity, an outer shell and an auxiliary spring, wherein the inner shell is sleeved outside the inner shell, the auxiliary spring is arranged in a gap between the inner shell and the outer shell and used for elastically pushing the outer shell towards the front end direction of the inner shell, the outer wall of the inner shell is further provided with a buckle groove used for being correspondingly buckled with a corresponding adapter, the outer shell covers the buckle groove under the elastic action of the auxiliary spring, the MPO connector is characterized by further comprising a movable sleeve and an operating rod, the movable sleeve is sleeved outside the outer shell, the operating rod is arranged at one end of the movable sleeve and used for enabling a user to apply force to enable the movable sleeve to move along the axial direction of the outer shell, a linkage portion is arranged on the outer wall of at least one side of the outer shell, and a driving portion, matched with the linkage portion to drive the outer shell to move backwards and move away from the outer side of the buckle groove, is arranged on the corresponding side of the movable sleeve.

2. The MPO connector of claim 1, wherein the linkage portion is a boss, and the drive portion is an opening into which the boss is inserted; or the linkage part is provided with an opening, and the driving part is a boss correspondingly inserted into the opening.

3. The MPO connector of claim 1, further comprising a stop member having a front end inserted into the rear end of the inner cavity of the inner housing, wherein the rear end of the movable sleeve is further protruded toward the inside of the movable sleeve to form a limiting step, and the limiting step is correspondingly abutted against a rear end face of the stop member to limit the position of the movable sleeve when the outer housing moves to a forward limit position toward the front end of the inner housing under the elastic force of the auxiliary spring.

4. The MPO connector according to claim 1 or 3, wherein one side of the movable sleeve is provided with an expansion joint for the movable sleeve to elastically deform and fit over the outer side of the housing.

5. The MPO connector of claim 1, wherein the operating lever is a straight lever body extending from the rear end of the movable sleeve to one side thereof along the axial rear end of the housing by a predetermined length.

6. The MPO connector of claim 1, wherein a snap groove is formed on an outer wall of the inner housing, a barb is correspondingly accommodated in the snap groove is formed on an inner wall of the outer housing, and the barb abuts against an inner wall of the snap groove on one side close to the front end of the inner housing under the action of the auxiliary spring; the tail end edge of the inner shell is provided with a limiting flange, and the inner wall of the tail end of the outer shell is provided with a stop block which is used for being matched with the limiting flange to limit the backward limit position of the outer shell moving towards the rear end of the inner shell so as to prevent the auxiliary spring from being excessively compressed.

7. The MPO connector according to claim 1, wherein rear receiving grooves are formed at respective rear end portions of the opposite outer walls of the inner housing, the outer wall of the inner housing further has a stopper formed to protrude outward at a rear end of the rear receiving groove, the rear receiving grooves extend to the stopper, and front receiving grooves are correspondingly formed on the opposite inner walls of the outer housing, and the front receiving grooves and the rear receiving grooves are communicated to form the spring grooves for receiving the auxiliary spring.

8. The MPO connector of claim 3, further comprising a plug assembly assembled within the front end of the interior cavity of the inner housing and extending from the front end opening of the interior cavity, and a main spring disposed between the plug assembly and the stop.

9. The MPO connector according to claim 8, wherein the rear end of the stopper is provided with a stopper portion for stopping the end face of the inner housing, and opposite side walls of the stopper are respectively provided with positioning projections extending from a middle portion of a front end face of the stopper portion in an axial direction toward a front end of the stopper by a predetermined length; and a positioning groove matched with the positioning lug in shape is arranged at the position of the inner cavity corresponding to the positioning lug.

10. The MPO connector of claim 8, further comprising wire ferrules attached to the tail ends of the stops.