CN216118089U

CN216118089U - MPO optical fiber connector

Info

Publication number: CN216118089U
Application number: CN202121979397.5U
Authority: CN
Inventors: 韩绍友; 张业
Original assignee: Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-22
Anticipated expiration: 2031-08-19

Abstract

The embodiment of the utility model provides an MPO optical fiber connector, which comprises an inner shell, an outer shell, a tail sheath and a connecting rod, wherein the outer shell can be movably sleeved outside the inner shell along the length direction of the MPO optical fiber connector, the tail sheath can be movably connected to the tail end part of the inner shell along the length direction of the MPO optical fiber connector, the two ends of the connecting rod are respectively and correspondingly connected with the outer shell and the tail sheath, and when the tail sheath moves relative to the inner shell in a direction far away from the outer shell, the connecting rod drives the outer shell to synchronously move. According to the embodiment of the utility model, the tail sheath is movably assembled at the rear end of the inner shell, the outer shell is connected with the tail sheath through the connecting rod, the outer shell can be moved away from the locking position only by pulling the tail sheath outwards, and then the MPO optical fiber connector can be pulled out.

Description

MPO optical fiber connector

Technical Field

The embodiment of the utility model relates to the technical field of optical fiber connectors, in particular to an MPO optical fiber connector.

Background

A conventional MPO optical fiber connector generally includes an inner housing, a ferrule assembly assembled inside the inner housing and having a front end protruding from a front end opening of the inner housing, an outer housing movably sleeved outside the inner housing along a length direction of the connector, a return spring assembled between the inner housing and the outer housing for urging the outer housing to return, and a tail jacket fixedly assembled at a rear end of the inner housing.

When assembling the MPO optical fiber connector to the corresponding adapter, the front end part of the MPO optical fiber connector is inserted into the corresponding jack on the adapter, and the operation is relatively simple. When the assembly is completed, the inner clamping hook on the side surface of the front end of the inner shell of the MPO optical fiber connector can be correspondingly buckled and matched with the outer clamping hook on the inner side of the inserting hole of the adapter for fixation, and the outer shell is sleeved outside the outer clamping hook under the elastic action of the reset spring to prevent the outer clamping hook from expanding outwards, so that the inner clamping hook and the outer clamping hook keep the buckling and matching state and cannot be loosened, and the stable butt joint of the MPO optical fiber connector and the adapter is ensured not to fall off. When the MPO optical fiber connector needs to be detached from the adapter, the shell needs to be pinched by hands or other tools and pulled backwards by overcoming the elastic force of the return spring, so that the shell is moved away from the outer side of the outer clamping hook, and at the moment, the inner clamping hook and the outer clamping hook can be separated from each other by continuously pulling outwards, so that the MPO optical fiber connector can be removed from the adapter.

With the development of 5G communication, cloud computing and big data, the integration degree of related data centers is higher and higher, and unlimited data needs to be accommodated in a limited space, so that MPO optical fiber connectors as many as possible need to be densely assembled in the limited space, and in order to facilitate disassembly, a shell can be clamped by hands or other tools to perform related disassembly operations, a certain distance needs to be reserved between adjacent MPO optical fiber connectors, so that the installation density of the MPO optical fiber connectors is limited.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiments of the present invention is to provide an MPO optical fiber connector, which can be conveniently detached from a butted adapter in an application environment with high installation density.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions: an MPO optical fiber connector comprises an inner shell, an outer shell which can be movably sleeved outside the inner shell along the length direction of the MPO optical fiber connector, a tail sheath which can be movably connected to the tail end of the inner shell along the length direction of the MPO optical fiber connector, and a connecting rod of which two ends are respectively connected with the outer shell and the tail sheath correspondingly, wherein when the tail sheath moves relative to the inner shell in the direction far away from the outer shell, the connecting rod drives the outer shell to synchronously move.

Furthermore, the shell and the tail sheath are respectively provided with a front through hole and a rear through hole which are coaxially arranged correspondingly, the front end and the rear end of the connecting rod respectively penetrate through the front through hole and the rear through hole, the front end and the rear end of the connecting rod respectively form a front blocking part and a rear blocking part, the front blocking part is abutted against the end face outside the front end orifice of the front through hole, and the rear blocking part is abutted against the end face outside the rear end orifice of the rear through hole.

Further, the front blocking portion is a frustum integrally formed at the front end portion of the connecting rod and having a thin front portion and a thick rear portion, the rear half portion of the front through hole is in a bell mouth shape, and the rear end portion of the front blocking portion abuts against an end face of the front through hole on the outer side of the front end hole.

Further, the rear stop portion is a convex ring integrally formed at the rear end portion of the connecting rod.

Furthermore, the tail sheath is fixed relative to the rear end of the connecting rod, the shell is provided with a front through hole for the front end of the connecting rod to pass through, and the front end of the connecting rod is also provided with a front stop part which is correspondingly abutted against the end surface outside the front end orifice of the front through hole.

Furthermore, the shell is also provided with a position avoiding groove which is connected with the front end hole opening of the front through hole, extends to the front end part of the shell for a preset length along the length direction of the connecting rod and is used for accommodating the connecting rod when the shell moves close to the tail sheath.

Further, the shell is fixed relative to the front end of the connecting rod, the tail sheath is provided with a rear through hole for the rear end of the connecting rod to pass through, and the rear end of the connecting rod is also provided with a rear stop portion correspondingly abutted against the end face of the outer side of the rear end hole of the rear through hole.

Further, a blocking strip used for correspondingly limiting the moving stroke of the outer shell is further formed on the part, between the outer shell and the tail sheath, of the inner shell, and a through hole used for the connecting rod to pass through is further formed in the blocking strip at a position corresponding to the connecting rod.

Further, the inside fixed equipment of inner shell has the stop part, the afterbody of stop part still certainly the inner shell stretches out, just the stop part extends to the afterbody outside the inner shell still fixed equipment has the crimping cover, the stay tube has been assembled in the inner chamber of tail sheath, the tail sheath with the stay tube cup joint in on the crimping cover just stay tube and crimping cover clearance fit.

Furthermore, the tail part of the stop piece extending out of the inner shell is also provided with a containing groove used for containing the connecting rod at the position corresponding to the connecting rod.

After the technical scheme is adopted, the embodiment of the utility model at least has the following beneficial effects: according to the embodiment of the utility model, the tail sheath is movably assembled at the rear end of the inner shell, and the outer shell is connected with the tail sheath through the connecting rod, so that when the MPO optical fiber connector needs to be disassembled from the adapter, the outer shell can be moved away from the outer side of the corresponding outer clamping hook on the adapter by only pulling the tail sheath outwards, and then the MPO optical fiber connector can be pulled out.

Drawings

Fig. 1 is a schematic structural view of an alternative embodiment of the MPO fiber optic connector of the present invention in a disassembled state.

Fig. 2 is a schematic view showing the combined state of an alternative embodiment of the MPO fiber optic connector of the present invention.

Fig. 3 is a schematic structural view of an alternative embodiment of the MPO fiber optic connector of the present invention assembled to an adapter.

Fig. 4 is a schematic cross-sectional view of an MPO fiber optic connector according to an embodiment of the present invention, taken along a medial axis of the MPO fiber optic connector, when the MPO fiber optic connector is assembled to an adapter.

Detailed Description

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

As shown in fig. 1 to 4, an alternative embodiment of the present invention provides an MPO optical fiber connector 1, which includes an inner housing 10, an outer housing 12 movably sleeved outside the inner housing 10 along a length direction of the MPO optical fiber connector 1, a tail sheath 14 movably connected to a tail end of the inner housing 10 along the length direction of the MPO optical fiber connector 1, and a link 16 having two ends respectively connected to the outer housing 12 and the tail sheath 14, wherein when the tail sheath 14 moves away from the outer housing 12 relative to the inner housing 10, the link 16 drives the outer housing 12 to move synchronously.

In the embodiment of the utility model, the tail sheath 14 is movably assembled at the rear end of the inner shell 10, and the outer shell 12 is connected with the tail sheath 14 through the connecting rod 16, so that when the MPO optical fiber connector 1 needs to be disassembled from the adapter 2, the outer shell 12 can be moved away from the outer side of the corresponding outer snap hook 20 on the adapter 2 only by pulling the tail sheath outwards, and further when a force is applied to pull outwards, the inner snap hook 100 at the front end of the inner shell 10 can be separated from the outer snap hook 20 (the connection and matching mode and the structure between the MPO optical fiber connector 1 and the adapter 2 are conventional structures, which are not described herein in detail), the MPO optical fiber connector 1 can be pulled out, because the tail sheath 14 is positioned at the tail part of the MPO optical fiber connector 1, the MPO is thinner than the main body part at the front part of the MPO optical fiber connector 1, so that the pulling operation can be convenient, and because the outer shell 12 does not need to be directly pinched, the operation space necessary for pinching the outer shell 12 does not need to be provided, and the MPO optical fiber connectors 1 can be assembled more densely. It will be understood that the number of the connecting rods 16 may be one, two or even more, and in the embodiment shown in fig. 1 to 4, the connecting rods 16 are two and are symmetrically arranged on the same side of the MPO optical fiber connector 1.

In an alternative embodiment of the present invention, as shown in fig. 1 to 4, the shell 12 and the tail sheath 14 are respectively provided with a front through hole 120 and a rear through hole 140, which are coaxially disposed, the front end and the rear end of the connecting rod 16 respectively pass through the front through hole 120 and the rear through hole 140, the front end and the rear end of the connecting rod 16 respectively form a front stop portion 160 and a rear stop portion 162, the front stop portion 160 abuts against an end surface outside a front end aperture of the front through hole 120, and the rear stop portion 162 abuts against an end surface outside a rear end aperture of the rear through hole 140. In the embodiment, the front through hole 120 and the rear through hole 140 are respectively formed in the housing 12 and the tail sheath 14, and the front end and the rear end of the connecting rod 16 are respectively provided with the front stopping portion 160 and the rear stopping portion 162 to respectively abut against the end surfaces outside the corresponding end holes of the front through hole 120 and the rear through hole 140, so that the housing 12 and the tail sheath 14 can be effectively connected, and the housing 12 can be effectively driven to synchronously move through the connecting rod 16 when the tail sheath 14 is pulled backwards.

In an alternative embodiment of the present invention, as shown in fig. 1 to 4, the front blocking portion 160 is a frustum integrally formed at the front end of the connecting rod 16 and having a thin front and a thick rear, the rear half of the front through hole 120 is in a bell mouth shape, and the rear end of the front blocking portion 160 abuts against the end surface of the front through hole 120 outside the front end opening. In the embodiment, the front blocking portion is designed to be frustum-shaped, and the rear half portion of the front through hole 120 is also designed to be horn-mouth-shaped, so that the front end of the connecting rod 16 can be conveniently inserted from the rear end orifice of the front through hole 120, and the front blocking portion 160 pushes the inner wall of the front through hole 120, so that the front blocking portion 160 and the front through hole 120 both generate certain elastic deformation to facilitate the smooth passing of the front blocking portion 160 through the front through hole 120, and after the front blocking portion 160 completely passes through the front through hole 120, the frustum-shaped front blocking portion 120 correspondingly abuts against the end surface outside the front end orifice of the front through hole 120 at the thicker end of the rear end to realize positioning, and the assembly is convenient and the positioning connection is stable.

In an alternative embodiment of the present invention, as shown in fig. 1 to 4, the rear stop portion 162 is a convex ring integrally formed at the rear end of the connecting rod 16. In this embodiment, the rear stop part 162 is formed by integrally forming a protruding ring at the rear end of the connecting rod 16, which not only has a simple structure and is convenient to form, but also can be stably positioned and connected with the tail sheath 14, so as to prevent the tail sheath 14 from being completely pulled off from the rear end of the inner shell 10 when the tail sheath 14 is pulled backwards.

In another alternative embodiment of the present invention, as shown in fig. 1 to 4, the tail sheath 14 is fixed to the rear end of the connecting rod 16, the housing 12 is provided with a front through hole 120 for the front end of the connecting rod 16 to pass through, and the front end of the connecting rod 16 is further provided with a front stop portion 160 correspondingly abutted against the end surface outside the front end hole of the front through hole 120. This embodiment simplifies the structure and facilitates the manufacture and assembly by fixing the rear end of the connecting rod 16 relative to the tail boot 14. In specific implementation, the connecting rod 16 and the tail sheath 14 may be integrally formed, or may be separately formed and then fixedly assembled into a whole, for example, by screwing or welding.

In yet another alternative embodiment of the present invention, as shown in fig. 1 to 4, the housing 12 is further provided with a clearance groove 122 engaged with the front end opening of the front through hole 120 and extending to the front end of the housing along the length direction of the connecting rod 16 for a predetermined length, for accommodating the connecting rod 16 when the housing 12 moves closer to the tail sheath 14. By forming the clearance groove 122 on the housing 12, the housing 12 will not interfere with the connecting rod 16 when pushed by the adapter 2 to move backwards in the process of assembling the MPO fiber connector to the adapter, thereby ensuring smooth assembly. And the connecting rod 16 is accommodated in the avoiding groove 122, so that the connecting rod 16 can be prevented from being excessively protruded relative to the shell 12, the overall size of the MPO optical fiber connector can be effectively reduced, and more MPO optical fiber connectors can be assembled in a limited space.

In yet another alternative embodiment of the present invention, the housing 12 is fixed to the front end of the connecting rod 16, the rear sheath 14 is provided with a rear through hole 140 for the rear end of the connecting rod 16 to pass through, and the rear end of the connecting rod 16 is further provided with a rear stop 162 abutting against an end surface of the rear through hole 140 outside the rear end hole. The present embodiment can simplify the structure and facilitate the processing and assembly by fixing the front end of the connecting rod 16 with respect to the housing 12. In specific implementation, the connecting rod 16 and the housing 12 may be integrally formed, or may be separately formed and then fixedly assembled into a whole, for example, by screwing or welding.

In an alternative embodiment of the present invention, the portion of the inner shell 10 between the outer shell 12 and the tail sheath 14 further forms a barrier 100 for correspondingly limiting the moving stroke of the outer shell 12, and the barrier 100 is further provided with a through hole 102 for the connecting rod 16 to pass through at a position corresponding to the connecting rod 16. In this embodiment, the barrier strip 100 is disposed on the inner shell 10, so that the rearward movement stroke of the outer shell 12 can be effectively limited, the outer shell 12 is prevented from completely falling off from the inner shell 10, and the through hole 102 of the barrier strip 100 facilitates the connection rod 16 to pass through and provides a certain positioning and guiding function.

In an optional embodiment of the present invention, a stopper 18 is fixedly assembled inside the inner shell 10, a tail portion of the stopper 18 further extends from the inner shell 10, a crimping sleeve 19 is further fixedly assembled on a tail portion of the stopper 18 extending outside the inner shell 10, a supporting tube 142 is assembled in an inner cavity of the tail sheath 14, the tail sheath 14 is sleeved on the crimping sleeve 19 through the supporting tube 142, and the supporting tube 142 is in clearance fit with the crimping sleeve 19. In the embodiment, the crimping sleeve 19 is assembled at the tail part of the inner shell 10 by means of the stop part 18, the supporting tube 142 is further arranged in the tail sheath, the tail sheath 14 is sleeved on the crimping sleeve 19 through the supporting tube 142 and is in clearance fit with the crimping sleeve 19, so that the tail sheath 14 can move back and forth in the length direction relative to the inner shell 10, the connection structure is simple, the assembly is easy, the internal optical fiber can be effectively protected through the supporting tube 142, and the optical fiber is prevented from being influenced when the tail sheath moves.

In an alternative embodiment of the present invention, the tail portion of the stopper 18 extending out of the inner shell 10 is further provided with a receiving groove 180 for receiving the connecting rod 16 at a position corresponding to the connecting rod 16. The embodiment is advantageous for reducing the overall size of the MPO optical fiber connector by correspondingly providing the accommodating groove 180 on the stopper 18 to accommodate the link 16, and avoiding the link 16 from being too protruded relative to the stopper 18.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An MPO optical fiber connector comprises an inner shell and an outer shell which is movably sleeved outside the inner shell along the length direction of the MPO optical fiber connector, and is characterized in that the MPO optical fiber connector also comprises a tail sheath which is movably connected to the tail end part of the inner shell along the length direction of the MPO optical fiber connector and a connecting rod of which the two ends are respectively correspondingly connected with the outer shell and the tail sheath, and when the tail sheath moves relative to the inner shell in a direction far away from the outer shell, the connecting rod drives the outer shell to synchronously move.

2. The MPO fiber optic connector of claim 1, wherein the housing and the tail jacket each have a front through hole and a rear through hole that are coaxially disposed, the front and rear ends of the link rod respectively pass through the front through hole and the rear through hole, the front and rear ends of the link rod respectively form a front stop portion and a rear stop portion, the front stop portion abuts against an end surface outside a front end opening of the front through hole, and the rear stop portion abuts against an end surface outside a rear end opening of the rear through hole.

3. The MPO optical fiber connector according to claim 2, wherein the front stop portion is a tapered body formed integrally with the front end portion of the link and having a thin front and a thick rear, the rear half portion of the front through hole has a flared shape, and the rear end portion of the front stop portion abuts against an end surface of the front through hole outside the front end opening.

4. The MPO fiber optic connector of claim 2, wherein the backstop is a male ring integrally formed at the rear end of the link.

5. The MPO fiber optic connector of claim 1, wherein the tail jacket is fixed relative to the rear end of the link, the housing has a front through hole for the front end of the link to pass through, and the front end of the link further forms a front stop portion that abuts against an end surface outside the front end opening of the front through hole.

6. The MPO fiber optic connector according to claim 2 or 5, wherein the housing is further provided with a clearance groove which is engaged with the front end opening of the front through hole and extends a predetermined length toward the front end of the housing along the length direction of the link for accommodating the link when the housing is moved closer to the rear jacket.

7. The MPO fiber optic connector of claim 1, wherein the housing is fixed relative to the front end of the link, the rear sheath has a rear through hole for the rear end of the link to pass through, and the rear end of the link further forms a backstop abutting against an end surface outside the rear end opening of the rear through hole.

8. The MPO fiber optic connector of claim 1, wherein the portion of the inner housing between the outer housing and the tail jacket further forms a stop for correspondingly limiting the travel of the outer housing, the stop further having a through-hole for the link to pass through at a location corresponding to the link.

9. The MPO fiber optic connector of claim 1, wherein a stop is fixedly assembled inside the inner housing, a tail of the stop further extends from the inner housing, a press sleeve is fixedly assembled on the tail of the stop extending out of the inner housing, a support tube is assembled in an inner cavity of the tail sheath, the tail sheath is sleeved on the press sleeve through the support tube, and the support tube is in clearance fit with the press sleeve.

10. The MPO fiber optic connector of claim 9, wherein the tail portion of the stop extending outside the inner housing further defines a receiving slot for receiving the link at a location corresponding to the link.