阅读说明：本技术 Mpo光纤连接器组件及其操作手柄 (MPO fiber connector assembly and operating handle thereof ) 是由 王金殿 田兵兵 李智乐 于 2018-12-24 设计创作，主要内容包括：本发明涉及一种MPO光纤连接器组件及其操作手柄。MPO光纤连接器组件包括连接器和操作手柄,定义连接器的插接端为前端,连接器包括本体和前后活动地套设在本体上的外壳体,外壳体上设有挡止凸缘；所述操作手柄包括用于套设到外壳体上的连接套,所述本体上设有凸台,外壳体上设有与所述凸台对应的滑槽,所述连接套上设有与挡止凸缘的前侧挡止配合的前挡止凸起,连接套上还设有与凸台的后侧挡止配合的后挡止凸起,前挡止凸起与后挡止凸起在与前后方向垂直的投影面上的投影相互错开。连接套前移时利用后挡止凸起推动本体向前移动以安装连接器,连接套后移时利用前挡止凸起拉动外壳体向后移动以移除连接器,便于在狭小空间内安装与移除连接器。(The invention relates to an MPO optical fiber connector assembly and an operating handle thereof. The MPO optical fiber connector assembly comprises a connector and an operating handle, wherein the inserting end of the connector is defined as a front end, the connector comprises a body and an outer shell which is movably sleeved on the body in a front-back mode, and a stop flange is arranged on the outer shell; the operating handle comprises a connecting sleeve which is used for being sleeved on an outer shell, a boss is arranged on the body, a sliding groove corresponding to the boss is arranged on the outer shell, a front stopping bulge matched with the front side stopping of the stopping flange is arranged on the connecting sleeve, a rear stopping bulge matched with the rear side stopping of the boss is further arranged on the connecting sleeve, and the projections of the front stopping bulge and the rear stopping bulge on a projection plane which is perpendicular to the front-rear direction are mutually staggered. When the connecting sleeve moves forwards, the body is pushed to move forwards by the aid of the rear stopping bulges so as to install the connector, and when the connecting sleeve moves backwards, the outer shell is pulled to move backwards by the aid of the front stopping bulges so as to remove the connector, so that the connector can be installed and removed in a narrow space conveniently.)

The MPO optical fiber connector assembly comprises a connector and an operating handle, wherein a plugging end of the connector is defined as a front end, the connector comprises a body and an outer shell which is movably sleeved on the body in a front-back mode, and a stop flange is arranged on the outer shell; operating handle establishes the adapter sleeve on the shell body including being used for the cover, its characterized in that: the connecting sleeve is provided with a front stop bulge matched with the front stop of the stop flange, the connecting sleeve is also provided with a rear stop bulge matched with the rear stop of the boss, and the projections of the front stop bulge and the rear stop bulge on a projection plane perpendicular to the front-rear direction are staggered.

2. The MPO fiber optic connector assembly of claim 1, wherein: the body comprises an inner shell and a spring limiting seat fixed at the rear end of the inner shell, the spring limiting seat comprises a tail sleeve combining part positioned at the tail end of the rear part and a base body part adjacent to the tail sleeve combining part, the boss is arranged on the side wall of the base body part, and the front end of the sliding groove is provided with a front stop wall used for being in stop fit with the boss.

3. The MPO fiber optic connector assembly of claim 2, wherein: the cross section of the base body part is rectangular, the boss is arranged in the middle of the side wall corresponding to the long edge of the rectangle, and the stop flanges are arranged on two sides of the sliding groove in the width direction.

4. The MPO fiber optic connector assembly of claim 2, wherein: the base body part is integrally inserted into the rear end opening of the inner shell, and the rear end face of the base body part is flush with the rear end face of the inner shell, is recessed into the rear end opening of the inner shell or is protruded out of the rear end opening of the inner shell by no more than 5 mm.

5. The MPO fiber optic connector assembly of any one of claims 1-4, wherein: the front stopping bulge is arranged at the front end of the connecting sleeve, the rear stopping bulge is arranged on the inner wall of the axial middle part of the connecting sleeve, the operating handle further comprises a pull handle arranged at the rear side of the connecting sleeve, the thickness of the pull handle is larger than that of the connecting sleeve, and the distance between the front end surface of the pull handle and the front end surface of the rear stopping bulge is larger than the backward moving stroke of the outer shell.

6. The MPO fiber optic connector assembly of any one of claims 1-4, wherein: the connecting sleeve is injection moulding, and the connecting sleeve includes main part and the part that opens and shuts with main part body coupling, and the main part is articulated through the crease that moulds plastics and form with the junction of the part that opens and shuts, the part that opens and shuts is kept away from one end of articulated department and main part and is passed through the buckle block with the main part.

7. Operating handle establishes the adapter sleeve on the shell body of connector, its characterized in that including being used for the cover: the connecting sleeve is provided with a front stop bulge matched with the front stop of the stop flange on the outer shell, the connecting sleeve is also provided with a rear stop bulge matched with the rear stop of the boss of the connector body, and the projections of the front stop bulge and the rear stop bulge on a projection plane vertical to the front and rear directions are mutually staggered.

8. The operating handle according to claim 7, wherein: the front stopping bulge is arranged at the front end of the connecting sleeve, the rear stopping bulge is arranged on the inner wall of the axial middle part of the connecting sleeve, the operating handle further comprises a pull handle arranged at the rear side of the connecting sleeve, the thickness of the pull handle is larger than that of the connecting sleeve, and the distance between the front end surface of the pull handle and the front end surface of the rear stopping bulge is larger than the backward moving stroke of the outer shell.

9. The operating handle according to claim 7 or 8, wherein: the connecting sleeve is injection moulding, and the connecting sleeve includes main part and the part that opens and shuts with main part body coupling, and the main part is articulated through the crease that moulds plastics and form with the junction of the part that opens and shuts, the part that opens and shuts is kept away from one end of articulated department and main part and is passed through the buckle block with the main part.

Technical Field

The invention relates to an MPO optical fiber connector assembly and an operating handle thereof.

Background

Along with the rapid development of data communication such as big data and cloud computing, the requirement of people on network broadband is increased in a blowout mode, and then higher requirements are provided for optical fiber network density, and the traditional optical fiber wiring network cannot meet the development requirement. The MPO series optical fiber connectors have the advantages of high connection density, small volume, convenient operation and the like, and become the direction and trend of high-density connection. With the increase of the connection density and the miniaturization of the chassis and the cabinet, the installation space of the connector is smaller and smaller. When the traditional MPO connector is used for high-density wiring, the installation and the removal are very inconvenient due to the narrow space.

Chinese patent application with application publication No. CN105929490A and publication No. 2016.09.07 discloses a connector remover and a connector assembly using the same, wherein the connector assembly comprises a connector and a remover, the connector comprises a body and a connector housing (i.e. an outer housing) arranged on the body, the connector housing is provided with a boss for facilitating movement of the connector, the remover comprises a C-shaped positioning sleeve and a pull handle connected with the positioning sleeve, the rear end of the pull handle is provided with a pull ring, and the positioning sleeve is provided with a positioning hole extending in the left-right direction and matched with the boss in an inserting manner. When the connector assembly is used, an operator pulls the pull handle backwards, and the connector shell is driven to move backwards by the insertion fit of the positioning hole and the boss, so that the connector is removed.

However, in the above-mentioned connector assembly, the remover can only apply a forward and backward acting force to the connector housing, and when the connector is installed, the body needs to be pushed forward and the adapter adapted to the connector pushes the connector housing to move the connector housing backward, so that the remover can only be used for removing the connector and cannot be used for installing the connector, and the installation is inconvenient when the connector is installed in a narrow space.

Disclosure of Invention

The invention aims to provide an operating handle, which solves the problem that the existing remover can only remove a connector but cannot install the connector; the invention also provides an MPO optical fiber connector assembly using the operating handle, which aims to solve the problem that the connector assembly in the prior art is inconvenient to mount in a narrow space because a remover can only remove the connector and cannot mount the connector.

In order to solve the technical problems, the technical scheme of the MPO optical fiber connector assembly provided by the invention is as follows:

the MPO optical fiber connector assembly comprises a connector and an operating handle, wherein the inserting end of the connector is defined as a front end, the connector comprises a body and an outer shell which is movably sleeved on the body in a front-back mode, and a stop flange is arranged on the outer shell; the operating handle comprises a connecting sleeve which is used for being sleeved on an outer shell, a boss is arranged on the body, a sliding groove corresponding to the boss is arranged on the outer shell, a front stopping bulge matched with the front side stopping of the stopping flange is arranged on the connecting sleeve, a rear stopping bulge matched with the rear side stopping of the boss is further arranged on the connecting sleeve, and the projections of the front stopping bulge and the rear stopping bulge on a projection plane which is perpendicular to the front-rear direction are mutually staggered.

The technical scheme has the beneficial effects that: the rear stopping bulge on the connecting sleeve is matched with the rear stopping bulge of the boss on the body, the front stopping bulge is matched with the front stopping bulge of the stopping flange of the outer shell, the projections of the front stopping bulge and the rear stopping bulge on the projection plane perpendicular to the front-rear direction are mutually staggered, so that the connecting sleeve can move in the front-rear direction, when the connecting sleeve moves forwards, the rear stopping bulge is used for pushing the body to move forwards to install the connector, when the connecting sleeve moves backwards, the front stopping bulge is used for pulling the outer shell to move backwards to remove the connector, therefore, the operation handle is used for realizing the installation and removal functions of the connector, and the connector can be conveniently installed and removed in a narrow space.

The body comprises an inner shell and a spring limiting seat fixed at the rear end of the inner shell, the spring limiting seat comprises a tail sleeve combining part positioned at the tail end of the rear part and a base body part adjacent to the tail sleeve combining part, the boss is arranged on the side wall of the base body part, and the front end of the sliding groove is provided with a front stop wall used for being in stop fit with the boss. The boss is arranged on the base body part of the spring limiting seat and is convenient to be matched with the rear stopping bulge in a stopping way, and the front stopping wall can limit the spring limiting seat.

The cross section of the base body part is rectangular, the boss is arranged in the middle of the side wall corresponding to the long edge of the rectangle, and the stop flanges are arranged on two sides of the sliding groove in the width direction. The size of the boss can be increased to increase the stress area of the base body part, so that the stress of the base body part is uniform, the stopping flanges are arranged on two sides of the groove width of the sliding groove, the sliding groove corresponds to the boss, and the projections of the stopping flanges and the boss on the projection plane vertical to the front-back direction are staggered.

The base body part is integrally inserted into the rear end opening of the inner shell, and the rear end face of the base body part is flush with the rear end face of the inner shell, is recessed into the rear end opening of the inner shell or is protruded out of the rear end opening of the inner shell by no more than 5 mm. The base portion is inserted into the rear end opening of the inner housing, reducing the size of the connector while also avoiding the influence of rearward movement of the outer housing.

The front stopping bulge is arranged at the front end of the connecting sleeve, the rear stopping bulge is arranged on the inner wall of the axial middle part of the connecting sleeve, the operating handle further comprises a pull handle arranged at the rear side of the connecting sleeve, the thickness of the pull handle is larger than that of the connecting sleeve, and the distance between the front end surface of the pull handle and the front end surface of the rear stopping bulge is larger than the backward moving stroke of the outer shell. The rear stop bulge is arranged in the middle part, so that the connecting sleeve can be stressed uniformly, and the distance between the rear stop bulge and the pull handle can avoid influencing the backward movement of the outer shell.

The connecting sleeve is injection moulding, and the connecting sleeve includes main part and the part that opens and shuts with main part body coupling, and the main part is articulated through the crease that moulds plastics and form with the junction of the part that opens and shuts, the part that opens and shuts is kept away from one end of articulated department and main part and is passed through the buckle block with the main part. The connecting sleeve can be conveniently mounted on the connector through the opening and closing part.

The technical scheme of the operating handle is as follows:

the operating handle comprises a connecting sleeve sleeved on an outer shell of the connector, wherein a front stopping bulge matched with the front stopping of the stopping flange on the outer shell is arranged on the connecting sleeve, a rear stopping bulge matched with the rear stopping of the boss of the connector body is also arranged on the connecting sleeve, and the projections of the front stopping bulge and the rear stopping bulge on a projection plane vertical to the front and rear directions are mutually staggered.

The technical scheme has the beneficial effects that: the rear stopping bulge on the connecting sleeve is matched with the rear stopping bulge of the boss on the body, the front stopping bulge is matched with the front stopping bulge of the stopping flange of the outer shell, the projections of the front stopping bulge and the rear stopping bulge on the projection plane perpendicular to the front-rear direction are mutually staggered, so that the connecting sleeve can move in the front-rear direction, when the connecting sleeve moves forwards, the rear stopping bulge is used for pushing the body to move forwards to install the connector, when the connecting sleeve moves backwards, the front stopping bulge is used for pulling the outer shell to move backwards to remove the connector, therefore, the operation handle is used for realizing the installation and removal functions of the connector, and the connector can be conveniently installed and removed in a narrow space.

The front stopping bulge is arranged at the front end of the connecting sleeve, the rear stopping bulge is arranged on the inner wall of the axial middle part of the connecting sleeve, the operating handle further comprises a pull handle arranged at the rear side of the connecting sleeve, the thickness of the pull handle is larger than that of the connecting sleeve, and the distance between the front end surface of the pull handle and the front end surface of the rear stopping bulge is larger than the backward moving stroke of the outer shell. The rear stop bulge is arranged in the middle part, so that the connecting sleeve can be stressed uniformly, and the distance between the rear stop bulge and the pull handle can avoid influencing the backward movement of the outer shell.

The connecting sleeve is injection moulding, and the connecting sleeve includes main part and the part that opens and shuts with main part body coupling, and the main part is articulated through the crease that moulds plastics and form with the junction of the part that opens and shuts, the part that opens and shuts is kept away from one end of articulated department and main part and is passed through the buckle block with the main part. The connecting sleeve can be conveniently mounted on the connector through the opening and closing part.

Drawings

FIG. 1 is an exploded view of an embodiment 1 of the MPO fiber optic connector assembly of the present invention;

FIG. 2 is an assembled schematic view of an embodiment 1 of the MPO fiber optic connector assembly of the present invention;

FIG. 3 is a schematic assembled rear side view of an MPO fiber optic connector assembly of embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view of the connector of embodiment 1 of the MPO fiber optic connector assembly of the present invention;

FIG. 5 is a schematic structural view of the operating handle of embodiment 1 of the MPO fiber optic connector assembly of the present invention;

fig. 6 is a schematic view showing the connection of the operating handle to the outer and inner housings of embodiment 1 of the MPO fiber optic connector assembly of the present invention.

The respective symbols in the figure: 1. a connector; 2. an operating handle; 21. connecting sleeves; 22. pulling a handle; 23. a body portion; 24. an opening and closing part; 25. a bayonet; 26. clamping a platform; 27. a front stop projection; 28. a backstop projection; 29. an inclined surface; 3. an outer housing; 31. a stop flange; 32. a chute; 4. an inner housing; 41. turning out the edges; 42. a flaring structure; 5. a spring limiting seat; 51. a tail sleeve joint part; 52. a base portion; 53. a boss; 54. a taper fitting section; 6. inserting a core; 7. an optical fiber; 8. a spring; 9. and a reset spring.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

Embodiment 1 of the MPO fiber optic connector assembly of the present invention, as shown in fig. 1 to 6, includes a connector 1 and an operating handle 2. The connector 1 comprises a body and an outer shell 3 which is movably sleeved on the body from front to back, the inserting end of the connector 1 is defined as a front end, and the optical fiber access end of the connector 1 is defined as a rear end.

As shown in fig. 1, 2, 3 and 4, the body includes an inner housing 4 and a spring seat 5 fixed at the rear end of the inner housing 4, and a ferrule 6, an optical fiber 7 and a spring 8 are arranged between the inner housing 4 and the spring seat 5. The spring seat 5 includes a boot coupling portion 51 at a rear end and a base portion 52 adjacent to the boot coupling portion 51, the base portion 52 being located at a front side of the boot coupling portion 51, the boot coupling portion 51 being for connection with the outer sheath of the optical fiber 7. The cross sections of the inner shell 4 and the base body portion 52 of the spring limiting seat 5 are rectangular, the side walls corresponding to the long sides of the rectangle are provided with bosses 53, the bosses 53 are arranged in the middle of the side walls corresponding to the long sides, and the rear side surfaces of the bosses 53 are used for being matched with the operating handle 2 in a stopping manner.

As shown in fig. 1, 2, and 3, the cross section of the outer case 3 is rectangular, the stopper flange 31 is provided on the side surface of the rear end of the outer case 3, and the stopper flange 31 is provided on the edge of the side wall corresponding to the long side of the rectangle so as to be offset from the boss 53 of the base portion 52 in the plane perpendicular to the front-rear direction. The long side of the rectangle of the outer housing 3 is provided with a sliding slot 32 corresponding to the boss 53, the stop flanges 31 are arranged on two sides of the sliding slot 32 in the slot width direction, the bottom wall of the sliding slot 32 forms a front stop wall in stop fit with the boss 53, and the front stop wall can limit the boss 53 to prevent the spring limiting seat 5 and the inner housing 4 from moving beyond the stroke.

As shown in fig. 1, 2, 3, 5 and 6, the operating handle 2 includes a connecting sleeve 21 and a pull handle 22 disposed at the rear side of the connecting sleeve 21, and the pull handle 22 is integrally injection-molded with the connecting sleeve 21 to enhance the structural strength of the operating handle 2. The connecting sleeve 21 comprises a main body part 23 and an opening and closing part 24 integrally connected with the main body part 23, the joint of the main body part 23 and the opening and closing part 24 is hinged through a crease formed by injection molding, the cross section of the main body part 23 is U-shaped, two parallel edges of the main body part 23 correspond to the long sides of the rectangle of the inner shell 4, one end of the opening and closing part 24, which is far away from the hinge joint with the main body part 23, is provided with a bayonet 25, the main body part 23 is provided with a clamping table 26 corresponding to the bayonet 25, the bayonet 25 and the clamping table 26 form a buckling structure, and the opening and closing part 24 and the main body part 23 are buckled through buckling, so that the connecting sleeve 21.

As shown in fig. 3, 5 and 6, the front end of the long side of the main body portion 23 of the connecting sleeve 21 is provided with a front stop protrusion 27, the front stop protrusion 27 is provided at the edge portion in the width direction of the long side to engage with the front stop of the stop flange 31 on the outer housing 3, the inner wall of the axial middle portion of the long side of the main body portion 23 of the connecting sleeve 21 is provided with a back stop protrusion 28, and the back stop protrusion 28 engages with the back stop of the boss 53. The front stop protrusion 27 is disposed at the edge of the long side and the rear stop protrusion 28 is disposed at the middle of the long side, so that the projections of the front stop protrusion 27 and the rear stop protrusion 28 on the projection plane perpendicular to the front-rear direction are staggered, and the influence of the front stop protrusion 27 and the rear stop protrusion 28 on the relative movement of the outer housing 3 and the inner housing 4 in the front-rear direction is avoided. The thickness of the pull handle 22 is larger than that of the connecting sleeve 21, and the distance between the front end surface of the pull handle 22 and the front end surface of the rear stop bulge 28 is larger than the backward movement stroke of the outer shell 3, so that the influence of the front end surface of the pull handle 22 on the backward movement of the outer shell 3 is avoided.

The two rear stop protrusions 28 are provided, the side surfaces of the two rear stop protrusions 28 close to each other are inclined surfaces 29, and the sides of the two inclined surfaces 29 close to the center of the connecting sleeve 21 are far away from each other, so that when the connecting sleeve 21 is mounted on the connector 1, the two inclined surfaces 29 can guide the mounting of the connecting sleeve 21 for the convenience of mounting.

As shown in fig. 1 and 4, the rear end opening of the inner shell 4 is a flared structure 42, the rear end of the base portion 52 of the spring seat 5 is a taper fitting section 54 having a taper, the taper of the taper fitting section 54 is adapted to the flared structure 42, and the base portion 52 is integrally inserted into the rear end opening of the inner shell 4. The rear end face of the taper fitting section 54 is flush with the rear end face of the inner shell 4, and the taper fitting section 54 is matched with the flaring structure 42, so that the spring limiting seat 5 can be inserted into the rear end opening of the inner shell 4 conveniently and a stop is formed, the size of the connector is reduced, and the influence on the backward movement of the outer shell is avoided; in other embodiments, the taper fitting section 54 may also be recessed within the rear end opening of the inner housing 4; the rear end face of the taper fitting section 54 may also protrude beyond the rear end opening of the inner housing 4 by not more than 5 mm.

As shown in fig. 1 and 4, a return spring 9 is disposed between the inner housing 4 and the outer housing 3, an outward-turned edge 41 perpendicular to the front-back direction is disposed at the rear end of the inner housing 4, the outward-turned edge 41 is used for supporting the return spring 9, the outer housing 3 is pushed by the adapter and moved backward, and the return spring 9 can automatically return the outer housing 3 after the body is adapted to the adapter. The small-diameter end of the flared structure 42 of the inner shell 4 is located behind the front side of the out-turned rim 41 to enhance the structural strength of the out-turned rim 41.

When the MPO optical fiber connector assembly is used, the opening and closing part 24 of the connecting sleeve 21 is opened, the connecting sleeve 21 is sleeved on the connector 1, and the opening and closing part 24 is clamped with the main body part 23 by utilizing a buckle. The connecting sleeve 21 is pushed forwards by the pull handle 22, the connecting sleeve 21 pushes the boss 53 through the rear stop protrusion 28 to drive the spring limit seat 5 and the inner housing 4 to move forwards until the front stop protrusion 27 on the connecting sleeve 21 passes over the stop flange 31 on the outer housing 3, at this time, the taper fitting section 54 of the base body 52 enters the flaring structure 42 of the inner housing 4, the rear end face of the taper fitting section 54 is flush with the rear end face of the inner housing 4, and at this time, the spring limit seat 5, the optical fiber 7, the ferrule 6 and the inner housing 4 are fixed to form a whole. When the connector 1 needs to be installed on the adapter, the pull handle 22 is pushed, the rear stop bulge 28 on the connecting sleeve 21 pushes the boss 53 to move forward, the boss 53 moves in the chute 32 on the outer shell 3 and drives the body to move forward, the adapter and the outer shell 3 are stopped front and back, when the body is connected with the adapter, the adapter releases the stop of the outer shell 3, and the outer shell 3 moves forward under the action of the reset spring 9 and locks the body, so that the installation of the connector 1 is realized; when the connector 1 needs to be removed, the pull handle 22 is pulled backwards, the front stop protrusion 27 of the connecting sleeve 21 pushes the stop flange 31 on the outer shell 3 to move backwards and drive the outer shell 3 to move backwards, the outer shell 3 releases the locking of the body, and the body is pulled out of the adapter under the action of the elastic force of the return spring 9, so that the connector 1 is removed.

Example 2 of the MPO fiber optic connector assembly of the present invention differs from example 1 in that: in embodiment 1, the connecting sleeve is a sleeve structure, and includes a main body portion and an opening and closing portion hinged to the main body portion, and in this embodiment, the connecting sleeve may also be an integral sleeve structure; the connecting sleeve can also be a C-shaped sleeve body.

Example 3 of the MPO fiber optic connector assembly of the present invention differs from example 1 in that: in embodiment 1, the front stopping protrusion and the rear stopping protrusion are both disposed on the long side of the connecting sleeve, in this embodiment, the front stopping protrusion and the rear stopping protrusion may also be disposed on the short side of the connecting sleeve, in which case the boss is disposed on the short side of the base portion.

Example 4 of the MPO fiber optic connector assembly of the present invention differs from example 1 in that: in embodiment 1, the boss is provided on the base portion of the spring seat of the main body, but in this embodiment, the boss may be provided on the inner case.

The specific structure of the embodiment of the operating handle of the present invention is the same as that of the operating handle of the MPO fiber optic connector assembly in any of the above embodiments, and details are not repeated here.