CN113866904A

CN113866904A - Optical fiber connecting device and network equipment

Info

Publication number: CN113866904A
Application number: CN202111205228.0A
Authority: CN
Inventors: 舒思文; 李振; 杨耕
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2021-12-31

Abstract

The application relates to the technical field of optical communication, in particular to an optical fiber connecting device and network equipment. Wherein, the optical fiber connecting device includes: the coupling cap is provided with at least three jacks which are arranged in one row or multiple rows; the connector comprises a tail sleeve and at least one plug positioned at the front end of the tail sleeve, the number of the plugs corresponds to at least three sockets one by one, and one end of each plug is detachably inserted into the corresponding socket. The optical fiber connecting device is provided with at least three plugs for inserting the adapter, so that the adapter can be simultaneously inserted into at least three plugs at the last time, and the installation and use efficiency of the device is improved.

Description

Optical fiber connecting device and network equipment

Technical Field

The present application relates to the field of optical communication technologies, and in particular, to an optical fiber connection device and a network device.

Background

With the development of communication technology, optical fiber transmission is increasingly applied to communication systems. In an Optical access Network, an Optical Distribution Network (ODN) connects an Optical Line Terminal (OLT) and an Optical Network Unit (ONU), and provides a bidirectional transmission channel for Optical signals between the OLT and the ONU.

Generally, an optical distribution network includes an adapter and a fiber optic connector. Among other things, fiber optic connectors are used to optically connect two optical fibers quickly without fusion splicing, so that two lengths of optical fiber are optically interconnected. The adapter mates the two connectors together for fiber optic signal transmission. The number of plugs of the existing optical fiber connector is one, and the installation efficiency is low in the process of installing optical fibers.

Disclosure of Invention

Embodiments of the present application provide an optical fiber connection apparatus having at least three plugs for inserting an adapter, so that the adapter is simultaneously inserted with at least three plugs at the last time, thereby improving device installation and use efficiency.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, the present application provides an optical fiber connection apparatus comprising: the coupling cap is provided with at least three jacks which are arranged in one row or multiple rows; the connector comprises a tail sleeve and at least one plug (used for inserting an adapter) positioned at the front end of the tail sleeve, the number of the plugs corresponds to at least three jacks one to one, one end of each plug is detachably inserted into the corresponding jack, and the other end of each plug is used for inserting the adapter.

According to the embodiment of the application, the coupling cap is provided with at least three jacks, and the number of plugs in the optical fiber connecting device corresponds to the number of jacks one by one. Therefore, the number of the plugs in the optical fiber connecting device is at least three, and then the adapter can be simultaneously inserted with at least three plugs at the last time, so that the installation and use efficiency of the device is improved.

In a possible implementation of the first aspect, the side wall of the plug is provided with a connector outer frame elastic arm extending outward in a direction toward the tail sleeve, and the side wall of the coupling cap is provided with an elastic arm matched with the connector outer frame elastic arm; the plug is inserted into the corresponding socket, and the elastic arm of the outer frame of the connector is clamped with the elastic arm so as to realize the fixation of the plug and the corresponding socket; the elastic arm can press the elastic arm of the connector outer frame to release the fixing of the plug and the corresponding adapter.

In one possible implementation of the first aspect, at least two or more of the elastic arms of the connector housing share one elastic arm.

In a possible implementation of the first aspect, the connector further includes mounting bases corresponding to at least three sockets in a one-to-one manner, each of the mounting bases includes an insertion end and a connection end, the insertion end of each of the mounting bases is inserted into the corresponding socket, and the connection end of each of the mounting bases is connected with a plug.

In one possible implementation of the first aspect, the insertion end of each mounting base is engaged with a corresponding socket.

In a possible implementation of the first aspect, one of the insertion end of the installation base and the inner wall of the socket is provided with a rib, and the other is provided with a slot, and the rib is clamped with the slot.

In a possible implementation of the first aspect described above, the coupling cap is provided with four sockets, the four sockets being arranged in a row.

In one possible implementation of the first aspect, the number of the tail sleeves is four, and each tail sleeve is provided with one plug at the front end.

In a possible implementation of the first aspect, the side wall of each plug is provided with a connector outer frame elastic arm extending outward in a direction toward the tail sleeve, the connector outer frame elastic arms of all the plugs are located on the same side, and the side wall of the coupling cap is provided with an elastic arm matched with the connector outer frame elastic arm;

the plug is inserted into the corresponding socket, and the elastic arm of the outer frame of the connector is clamped with the elastic arm so as to realize the fixation of the plug and the corresponding adapter;

the elastic arm can press the elastic arm of the connector outer frame to release the fixation of the plug and the corresponding jack.

In one possible implementation of the first aspect, the connector housing elastic arms of all the plugs share one elastic arm.

In one possible implementation of the first aspect, the four tailsleeves are different in appearance color.

In a possible implementation of the first aspect described above, the coupling cap is provided with four sockets, the four sockets being arranged in two rows, each row being provided with two sockets.

In one possible implementation of the first aspect, the two rows of sockets are rectangular in shape as a whole.

In one possible implementation of the first aspect, the number of the tail sleeves is one, and all the plugs share one tail sleeve.

In one possible implementation of the first aspect, the boot snaps into engagement with the coupling cap.

In a possible implementation manner of the first aspect, a rear end surface of the coupling cap facing away from the plug is provided with a first buckle and a second buckle, the first buckle and the second buckle are arranged at an interval along a first direction, and the first direction is perpendicular to an insertion direction of the plug into the socket;

the tail sleeve is provided with a first clamping groove and a second clamping groove on the inner wall opposite to the tail sleeve, the tail sleeve is in butt joint with the rear end face in the direction opposite to the insertion direction, the first buckle extends into the tail sleeve and is clamped with the first clamping groove, and the second buckle extends into the tail sleeve and is clamped with the second clamping groove.

In a possible implementation of the first aspect, the first buckle and the second buckle are elastic buckles, the first buckle elastically abuts against the first slot along the first direction, and the second buckle elastically abuts against the second slot along the first direction.

In a possible implementation of the first aspect, a glue filling sleeve is arranged in the tail sleeve, the optical cable is a four-core optical cable, the four-core optical cable is connected with all plugs in the glue filling sleeve through optical cable reinforcements, and the optical cable reinforcements are cured in the glue filling sleeve through glue.

In a possible implementation of the first aspect, the side wall of each row of plugs is provided with a connector outer frame elastic arm extending outward in a direction toward the tail sleeve, the connector outer frame elastic arms of each row of plugs are located on the same side, the connector outer frame elastic arms of the two rows of plugs are located on opposite sides, and the side wall of the coupling cap is provided with an elastic arm matched with the connector outer frame elastic arm;

the plug is inserted into the corresponding socket, and the elastic arm of the outer frame of the connector is clamped with the elastic arm so as to realize the fixation of the plug and the corresponding socket;

the elastic arm can press the elastic arm of the connector outer frame to release the fixing of the plug and the corresponding adapter.

In one possible implementation of the first aspect, the connector housing resilient arms of each row of plugs share a common resilient arm.

In a possible implementation of the first aspect, the front end surface of the coupling cap is provided with a first guiding flat plate and a second guiding flat plate respectively extending along the insertion direction of the plugs, the first guiding flat plate and the second guiding flat plate are arranged at intervals along a first direction and are located on two opposite sides of all the plugs, and the first direction is parallel to the arrangement direction of the jacks in each row.

In one possible implementation of the first aspect, the lengths of the first guide plate and the second guide plate are equal to or less than the length of the plug.

In a second aspect, the present application provides a network device, comprising: an adapter having a connector receptacle; the optical fiber connecting device as described in any one of the above first aspect, wherein the other end of the plug of the connector is plugged into the socket of the connector.

Drawings

FIG. 1 illustrates a first perspective view of a fiber optic connection device, according to some embodiments of the present application;

FIG. 2 illustrates a second perspective view of a fiber optic connection device, according to some embodiments of the present application;

FIG. 3 illustrates a third perspective view of a fiber optic connection device, according to some embodiments of the present application;

FIG. 4 illustrates a fourth perspective view of a fiber optic connection device, according to some embodiments of the present application;

FIG. 5 illustrates a first perspective view of a coupling cap in a fiber optic connection apparatus, in accordance with certain embodiments of the present application;

FIG. 6 illustrates a first perspective view of a connector in a fiber optic connection apparatus, in accordance with some embodiments of the present application;

FIG. 7 illustrates a perspective view of a mounting base in a fiber optic connection device, according to some embodiments of the present application;

FIG. 8 illustrates a first perspective view of a ferrule in an optical fiber connection device, according to some embodiments of the present application;

FIG. 9 illustrates a front view of a coupling cap in a fiber optic connection apparatus, according to some embodiments of the present application;

FIG. 10 illustrates a first side view of a coupling cap in a fiber optic connection apparatus, in accordance with some embodiments of the present application;

FIG. 11 illustrates a first side view of a fiber optic connection device in accordance with some embodiments of the present application;

FIG. 12 illustrates a second perspective view of a coupling cap in a fiber optic connection apparatus, in accordance with certain embodiments of the present application;

FIG. 13 illustrates a third perspective view of a coupling cap in a fiber optic connection apparatus, in accordance with certain embodiments of the present application;

FIG. 14 illustrates a second side view of a coupling cap in a fiber optic connection device, in accordance with some embodiments of the present application;

FIG. 15 illustrates a second perspective view of a boot in an optical fiber connection apparatus, according to some embodiments of the present application;

FIG. 16 illustrates a second perspective view of a connector in a fiber optic connection device, according to some embodiments of the present application;

FIG. 17 illustrates a second side view of an optical fiber connection device, according to some embodiments of the present application;

FIG. 18 is a cross-sectional view taken at angle C-C of FIG. 17;

FIG. 19 illustrates a perspective view of a potting compound in an optical fiber connection apparatus, according to some embodiments of the present application.

Detailed Description

Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings.

The application provides an optical fiber connecting device, including coupling cap and connector, install The plug of at least three connector on The coupling cap To can once insert The plug of at least three connector simultaneously on The adapter, improve device installation and availability factor, can wide application in like scenes such as FTTH (Fibre To The Home, optic Fibre is registered one's residence) four-core, satisfy The scene of multiport connection.

The optical fiber is a light transmission tool, and light is transmitted in the fiber made of glass or plastic by utilizing the principle of total reflection. To accomplish the need for flexible connections between different modules, devices and systems, fiber optic connector assemblies are often used to removably connect optical fibers to one another, which allows the optical circuit to be routed as desired. Therefore, optical fiber connectors are widely used as connecting members that are indispensable for optical communications.

The present application describes an example in which the optical fiber connector is an LC (lucent connector) type connector, and accordingly, the adapter is an LC type adapter of a mating LC type connector.

In some possible embodiments, the number of plugs of the optical fiber connector is one or two, and the optical fiber connector is plugged with one connector jack on the adapter through one plug to perform optical fiber signal transmission. In some scenarios, for example, a home or the like, where a multi-port connection is required, the number of optical channels is large, and the adapter has a plurality of connector sockets, so that a plurality of optical fiber connectors can be plugged into the adapter. However, since the number of the optical fiber connectors is one or two, when a plurality of optical fiber connectors are plugged into the adapter, the optical fiber connectors need to be plugged for a plurality of times, and the number of the plugging times is too many, which affects the construction efficiency.

The plug of the adapter for eight optical fiber connectors is taken as an example, and the adapter is provided with eight connector sockets. Illustratively, four connector sockets are provided on opposite sides of the adapter. When the number of the plugs of the optical fiber connectors is one, eight times of insertion actions are needed to complete the construction of inserting the plugs of the eight optical fiber connectors on the adapter. When the number of the plugs of the optical fiber connectors is two, four insertion actions are required to complete the construction of inserting the plugs of the eight optical fiber connectors on the adapter. Too many insertion times affect the construction efficiency.

Therefore, the application provides an optical fiber connecting device, which is provided with at least three plugs, and the at least three plugs can be simultaneously inserted into the adapter at one time, so that the inserting times are reduced, and the construction efficiency is improved. The present application exemplifies that the optical fiber connection device has four plugs, but the number of plugs is not limited to four, and may be five, six, or the like.

Referring to fig. 1 to 4, the optical fiber connection device 1 of the present application includes a coupling cap 10 and a connector 20, the connector 20 being provided at an end of an optical cable 30. Along the length of the connector 20 (shown in the direction X in fig. 4 of fig. 1), the connector 20 includes a plug 21 and a tail sleeve 22, the plug 21 is located at the front end of the tail sleeve 22, and the optical cable 30 extends from the rear end of the tail sleeve 22. Fig. 1 to 4 show that one longitudinal end of four plugs 21 is plugged into the coupling cap 10, and the other longitudinal end of the four plugs 21 is used for plugging into an adapter (not shown). Since the optical fiber connecting device 1 of the present application has four plugs 21, the plugs of the four optical fiber connectors 20 can be inserted into the adapter having the eight connector jacks at one time, and thus, the construction of inserting the plugs 21 of the eight optical fiber connectors 20 into the adapter can be completed only by performing the insertion operation twice on the adapter.

Similarly, the plugs 21 of the four optical fiber connectors 20 can be pulled out from the adapter at one time, and thus, the plug 21 of the eight optical fiber connectors 20 can be pulled out from the adapter only by performing the pulling-out operation twice on the adapter.

The optical fiber connection device 1 of the present application includes both an inline type and a side-by-side type according to the arrangement of the plugs 21 on the coupling cap 10. Among them, the four plugs 21 of the optical fiber connection device 1 shown in fig. 1 and 2 are arranged in a row, which belongs to the optical fiber connection device 1 of the inline type. The four plugs 21 of the optical fibre connection device 1 shown in fig. 3 and 4 are arranged in two rows, which belong to the optical fibre connection device 1 in a side-by-side fashion.

The optical fiber connecting device 1 of the inline type will be described first with reference to the drawings.

Referring to fig. 1, 2 and 5, the coupling cap 10 of the optical fiber connecting device 1 in inline form includes a coupling body 101, the coupling body 101 being provided with four insertion holes 11, the four insertion holes 11 being arranged in a row along a first direction (indicated by Y direction in fig. 1, 2 and 5), each insertion hole 11 penetrating the coupling body 101 along a length direction of the connector 20. Illustratively, the coupling body 101 of the optical fiber connection device 1 of the inline type is substantially rectangular parallelepiped. Four plugs 21 are in one-to-one correspondence with the four sockets 11, and one end in the length direction of each plug 21 is detachably inserted into the corresponding socket 11. Illustratively, the first direction and the length direction of the connector 20 are perpendicular to each other.

Referring to fig. 1, 2, 6 to 8, the optical fiber connecting device 1 of the inline type has four connectors 20 (e.g., LC connectors), each connector 20 including a plug 21, a tail sleeve 22, and a mounting base 23 sequentially distributed in a length direction. That is, the optical fiber connecting device 1 of the inline type has four plugs 21, four mounting bases 23, and four tail sleeves 22 linearly distributed along the length direction. The coupling cap 10 can arrange four connectors 20 without interference coupling, and realize the simultaneous insertion of the plugs 21 of four optical fiber connectors 20 at a time.

Illustratively, the plug 21, the tail sleeve 22, and the mounting base 23 described above are of a unitary construction. That is, the plug 21, the tail sleeve 22, and the mounting base 23 are integrally molded.

In some possible embodiments, the plug 21, the boot 22, and the mounting base 23 are of a split construction. That is, the plug 21, the tail sleeve 22, and the mounting base 23 are separately processed and then connected together to form the connector 20.

Further, a fiber stub 213 and an optical cable 30 are provided in each connector 20. The fiber stub 213 is received within the plug 21 and the fiber optic cable 30 extends into the interior cavity 211 of the boot 22 and is connected to the stub 213 within the plug 21 at the front end of the boot 22. The boot 22 is adapted to be wrapped around a portion of the fiber optic cable 30 adjacent the mounting base 23. Illustratively, the boot 22 of the present application is a resilient boot 22, and the resilient boot 22 protects the fiber optic cable 30 from excessive bending.

Referring to fig. 6 and 7, the mounting base 23 of the present application corresponds to the receptacle 11 on the coupling cap 10. Along the length direction (shown in the X direction in fig. 6 and 7), the mounting bases 23 include insertion ends 233 and connection ends 232, the insertion end 233 of each mounting base 23 is inserted into the corresponding socket 11, and the connection end 232 of each mounting base 23 is connected with the plug 21. Wherein the tail sleeve 22 is connected with the insertion end 233 of the mounting base 23. In the present application, the shape of the mounting base 23 is adapted to the shape of the socket 11 of the coupling cap 10. Illustratively, the socket 11 of the coupling cap 10 is shown in fig. 5 as being square in shape, and correspondingly, the mounting base 23 is also square in shape. In addition, the mounting base 23 has a cavity to facilitate the connection of the fiber optic cable extending into the interior cavity of the boot 22 with the ferrule 213 within the plug 21.

The connection form of the insertion end 233 of the mounting base 23 and the corresponding socket 11 is not limited, and the insertion end 233 of each mounting base 23 is exemplary clamped with the corresponding socket 11 to realize detachable connection. Thus arranged, the insertion end 233 of the mounting base 23 can be stably connected with the corresponding jack 11. Meanwhile, the shape of the socket 11 on the coupling body 101 may be a non-closed shape, reducing the weight of the coupling cap 10.

Referring to fig. 6 and 7, the insertion end 233 of the mounting base 23 is provided at both sides in the insertion direction with two card slots 231 extending in the second direction (shown in the Z direction in fig. 6 and 7), respectively, i.e., the number of the card slots 231 is two, wherein the first direction, the second direction and the length direction are perpendicular to each other. Referring to fig. 5 and 9, two ribs 111 are disposed at positions of the inner wall of the insertion opening 11 of the coupling body 101 corresponding to the slots 231, and each rib 111 is engaged with the corresponding slot 231 to achieve engagement between the insertion end 233 of the mounting base 23 and the corresponding insertion opening 11.

The form of the engagement between the insertion end 233 of the mounting base 23 and the corresponding socket 11 is not limited thereto, and in some possible embodiments, one side of the insertion direction of the insertion end 233 of the mounting base 23 is provided with a slot 231 extending along the second direction, i.e., the number of slots 231 is one. Correspondingly, a convex rib 111 is arranged at a position, corresponding to the clamping groove 231, on the inner wall of the insertion opening 11 of the coupling body 101, and the convex rib 111 is clamped with the corresponding clamping groove 231, so that the insertion end 233 of the installation base 23 is clamped with the corresponding insertion opening 11.

Alternatively, in some possible embodiments, the insertion end 233 of the mounting base 23 is provided with two ribs extending in the second direction on both sides of the insertion direction, i.e., the number of the ribs is two. Two clamping grooves are arranged at the positions, corresponding to the convex ribs, of the inner wall of the socket 11 of the coupling body 101, each convex rib is clamped with the corresponding clamping groove, and the clamping of the insertion end 233 of the installation base 23 and the corresponding socket 11 is realized.

Referring to fig. 10 and 11, after the plug 21, the mounting base 23 and the tail sleeve 22 of the connector 20 are connected in sequence, and after the insertion end 233 of the mounting base 23 is inserted into the corresponding socket 11, the plug 21 of the connector 20 of the optical fiber connecting device 1 is inserted into the connector socket of the adapter. The decoupling of the plug 21 of the connector 20 from the adapter can be achieved by pressing the connector 20 by the coupling cap 10.

Specifically, referring to fig. 1, 2 and 6, the side wall 211 on the side of the second direction of the plug 21 of each connector 20 is provided with a connector housing elastic arm 212 extending outward in the direction toward the tail sleeve 22, the connector housing elastic arms 212 of all the plugs 21 are located on the same side, and the side wall 1011 of the coupling body 101 is provided with an elastic arm 12 which is matched with the connector housing elastic arm 212.

After the plug 21 is inserted into the corresponding jack 11 through the insertion end 233 of the mounting base 23, the elastic arm 212 of the outer frame of the connector on the plug 21 is engaged with the elastic arm 12 on the coupling body 101, so as to fix the plug 21 and the corresponding jack 11, enhance the connection stability of the connector 20 and the coupling cap 10, and also facilitate the improvement of the stability of the plugging and unplugging process of the connector 20 on the coupling cap 10. After one end of the plug 21 of the connector 20 is fixed with the corresponding socket 11 of the coupling cap 10, the other end of the plug 21 is inserted into a connector socket (not shown) of the adaptor.

Referring to fig. 10 and 11, when it is necessary to decouple the plug 21 of the connector 20 from the connector socket of the adapter, the user presses the elastic arm 12 in the second direction (the direction a in fig. 10 and 11 shows the pressing direction), and the elastic arm 12 presses the connector housing elastic arm 212 to release the fixation of the other end of the plug 21 from the connector socket of the adapter.

Illustratively, the connector housing spring arms 212 of all the plugs 21 share one spring arm 12. In the present application, the resilient arms 12 extend in a first direction and cover all of the resilient arms 12. By pressing the elastic arm 12 on the coupling body 101, the connector outer frame elastic arms 212 of all the plugs 21 can be pressed simultaneously, so that the 4 connectors 20 can be unlocked simultaneously by pressing once, the unlocking of the connectors 20 and the adapters is completed, and the construction of users is facilitated. In some possible embodiments, the connector housing elastic arms 212 of each plug 21 respectively have corresponding elastic arms 12.

In some possible embodiments, the four ferrules 22 of the fiber optic connection device 1 are different colors in appearance. That is, the four tail sleeves 22 are arranged in different color arrangements, such as red, green, blue, and yellow, in that order. Equivalently, the four plugs 21 are arranged in a predetermined order. A predetermined color (e.g., red) may be set on the first tail sleeve 22 of the four tail sleeves 22 that are going from left to right or from right to left in the first direction to facilitate the identification of the first port on the adapter, thereby ensuring that the corresponding relationship between the four ports is correct.

In summary, the coupling caps 10 of the optical fiber connecting device 1 in the inline type are arranged linearly in the inline type, and four LC connectors 20 are sequentially mounted through the designed four-jack 11 structure in the inline type. The 4 connectors 20 are plugged in and out of the LC adapter at one time, and construction efficiency is improved.

The optical fibre connection device 1 in side-by-side form will be described again.

Referring to fig. 3, 4, 12 to 14, the coupling cap 10 of the fiber optic connection device 1 in side-by-side form also comprises a coupling body 101, the coupling body 101 being provided with four sockets 11. The four sockets 11 are arranged in two rows, two rows of sockets 11 are distributed up and down along the second direction (shown in the Z direction in fig. 12 to 14), each row includes two sockets 11 distributed along the first direction (shown in the Y direction in fig. 12), and each socket 11 penetrates the coupling body 101 along the length direction (shown in the X direction in fig. 12 to 14) of the connector 20.

That is, the four insertion openings 11 of the optical fiber connection device 1 in a side-by-side form are in a 2 × 2 rectangular distribution form for inserting and fixing the connector 20 into the coupling cap 10. That is, the two rows of the insertion ports 11 of the optical fiber connecting apparatus 1 in the side-by-side form are rectangular as a whole. Thus, four connectors 20 are coupled with the coupling cap 10 without interference, and a 2 × 2 matrix arrangement is formed, so that the function of simultaneously inserting 4 ports of the connectors 20 at a time can be realized.

In some possible embodiments, when the number of plugs of the connectors 20 of the optical fiber connection device 1 in the side-by-side form is four or more, the four or more connectors 20 form other forms of matrix type side-by-side arrangement. For example, the number of plugs of the connectors 20 of the side-by-side type optical fiber connection device 1 is six, and the six connectors 20 form a side-by-side arrangement in a 2 × 3 matrix.

Referring to fig. 3, 4 and 15, the optical fiber connection device 1 of the side-by-side form also has four connectors 20, and differs from the optical fiber connection device 1 of the inline form (shown in fig. 1 and 2) in that the number of the tail housings 22 of the optical fiber connection device 1 of the side-by-side form is one, and the plugs 21 of all the connectors 20 share one tail housing 22 (each connector 20 of the optical fiber connection device 1 of the inline form has one tail housing 22, respectively). That is, referring to fig. 16, each connector 20 of the optical fiber connecting device 1 in a side-by-side form includes a plug 21 and a mounting base 23, and four connectors 20 share one tail sleeve 22. Equivalently, the fiber optic connection device 1 in a side-by-side format has an integral boot 22, and the four connectors 20 are encased by the integral boot 22 after each connector 20 is inserted into a corresponding receptacle 11 via a mounting base 23. The integrated structure enables the operation to be convenient and flexible.

The connection of the mounting base 23 and the receptacle 11 in the optical fiber connection device 1 of the side-by-side type is the same as the connection of the mounting base 23 and the receptacle 11 in the optical fiber connection device 1 of the inline type, and will not be described again. Meanwhile, the optical fiber connection device 1 also has a ferrule 213 inside.

In some possible embodiments, the integral tail sleeve 22 is snapped onto the coupling cap 10 to provide a secure attachment.

Illustratively, referring to fig. 12 and 13, the rear end surface of the coupling cap 10 of the optical fiber connection device 1 in a side-by-side form facing away from the plug 21 is provided with a first catch 15 and a second catch 16, the first catch 15 and the second catch 16 being arranged at intervals in a first direction (indicated by X direction in fig. 12) perpendicular to an insertion direction (indicated by E direction in fig. 12) of the plug 21 into the socket 11. Referring to fig. 15 to 18, a first locking groove 222 and a second locking groove 223 are respectively formed on opposite inner walls of an inner cavity of the integrated tail sleeve 22, the tail sleeve 22 is butted with the rear end face along a direction (shown in a direction D in fig. 15) opposite to the insertion direction, the first buckle 15 extends into the tail sleeve 22 and is locked with the first locking groove 222 (shown in fig. 18), and the second buckle 16 extends into the tail sleeve 22 and is locked with the second locking groove 223 (shown in fig. 18). Illustratively, the outer contour of the coupling cap 10 is in an elliptical shape and is matched with the outer contour of the integrated tail sleeve 22, so that after the tail sleeve 22 is butted with the rear end face of the coupling cap 10 along the direction opposite to the insertion direction, the integral joint is in smooth transition, and the appearance is attractive.

Illustratively, the first latch 15 and the second latch 16 are elastic latches, the first latch 15 elastically abuts against the first engaging groove 222 along the first direction, and the second latch 16 elastically abuts against the second engaging groove 223 along the first direction. Thus, the integrated tail sleeve 22 can bear a certain degree of side load by the connector housing elastic arms 212 (the first catch 15 and the second catch 16) being engaged with the catching grooves 231 (the first catching groove 222 and the second catching groove 223) of the coupling cap 10.

With continued reference to fig. 12-14, and with reference to fig. 17, after the mounting bases 23 of the connectors 20 of the side-by-side fiber optic connection devices 1 are inserted into the corresponding sockets 11, the other end of the plug 21 is inserted into a connector socket (not shown) of an adapter. The plug 21 of the connector 20 is also decoupled from the adapter by the coupling cap 10 pressing the connector 20.

Specifically, the side walls of each row of the plugs 21 of the optical fiber connection device 1 in the side-by-side form are provided with the connector housing elastic arms 212 extending outward in the direction toward the tail sleeve 22, the connector housing elastic arms 212 of the plugs 21 of each row are located on the same side, the connector housing elastic arms 212 of the plugs 21 of the two rows are located on opposite sides in the second direction (shown in the Z direction in fig. 17), and the side walls on both sides of the second direction of the coupling cap 10 are provided with the elastic arms 12 engaged with the connector housing elastic arms 212. That is, the number of the elastic arms 12 includes two which are distributed up and down in the second direction.

When the plug 21 is inserted into the corresponding socket 11 through the mounting base 23, the elastic arm 212 of the connector outer frame on the plug 21 is engaged with the elastic arm 12 on the coupling body 101, so as to fix the plug 21 and the corresponding socket 11. After one end of the plug 21 of the connector 20 is fixed with the corresponding socket 11 of the coupling cap 10, the other end of the plug 21 is inserted into a connector socket (not shown) of the adaptor.

Referring to fig. 14 and 17, when it is required to decouple the plug 21 of the connector 20 from the connector socket of the adapter, the user presses the two elastic arms 12 up and down in the second direction (the direction a in fig. 14 and the direction B in fig. 17 show the pressing directions), and the two upper and lower elastic arms 12 are pressed to contract, so that the elastic arms 12 press the corresponding connector housing elastic arms 212 to release the fixing of the other end of the plug 21 to the connector socket of the corresponding adapter.

Illustratively, the connector housing spring arms 212 of each row of plugs 21 share a common spring arm 12. Therefore, a user can simultaneously unlock the four connectors 20 once by pressing the two elastic arms 12 up and down along the second direction, so that the unlocking of the connectors 20 and the adapter is completed, and the construction of the user is facilitated.

Referring to fig. 18 and 19, the potting cover 40 is provided in the tail sleeve 22 of the optical fiber connecting device 1 in a side-by-side form, and the optical fiber cable 30 is a four-core optical fiber cable. In some possible embodiments, the fiber optic cable 30 described above is not limited to being a quad fiber cable. The quad 31 of the quad is connected to all plugs 21 in the potting compound 40 by the cable strength member 32, and the cable strength member 32 is cured by glue in the potting compound 40. Illustratively, the cable strength members 32 are aramid yarns or the like.

The glue filling sleeve 40 comprises a first cylinder 42 and a second cylinder 43 which are different in diameter, the inner wall of the tail sleeve 22 is matched with the glue filling sleeve 40, and the first cylinder 42 and the second cylinder 43 of the glue filling sleeve 40 are respectively attached to the inner wall of the tail sleeve 22 and abut against the tail sleeve 22 along the insertion direction (shown in the direction E in fig. 18).

The cable strength members and a portion of the quad 30 are located in the cavity 41 of the potting compound 40 and cured in the potting compound 40 by glue (typically AB glue J2005), thereby coupling the quad 30 to the four connectors 20 and withstanding a degree of straight and side pulling forces.

With continuing reference to fig. 3 and 4 in conjunction with fig. 12 to 14, the front end face of the coupling cap 10 of the optical fiber connecting device 1 in a side-by-side form is provided with first and

second guide plates

13 and 14 respectively extending in the insertion direction of the plugs 21, the first and

second guide plates

13 and 14 being disposed at intervals in a first direction parallel to the arrangement direction of the jacks 11 in each row and on opposite sides of all the plugs 21. Equivalently, a pair of parallel guiding flat plates are designed at the left and right sides of the coupling cap 10 of the optical fiber connecting device 1 in a side-by-side mode, and can protect and guide the plugs 21 of the four connectors 20.

In some possible embodiments, the length of the first guide plate 13 and the second guide plate 14 is less than or equal to the length of the plug 21. Thus, the plugs 21 of the four connectors 20 can be protected.

In some possible embodiments, the end of the first guide plate 13 away from the front end surface of the coupling cap 10 is provided with a first inclined surface 131, and the end of the second guide plate 14 away from the front end surface of the coupling cap 10 is provided with a second inclined surface 141. The first inclined surface 131 and the second inclined surface 141 serve as a fool-proof structure for preventing the optical fiber connection device 1 of the side-by-side type from being inserted into the receptacle of the connector 20 of the adapter in a wrong way.

In summary, the optical fiber connection device 1 in the parallel form is formed by connecting the integrated tail sleeve 22, the coupling cap 10 and four connectors 20, the integrated tail sleeve 22 is connected and fixed with the coupling cap 10, and the four connectors 20 are fixedly mounted in the coupling cap 10 through the design structure of the coupling cap 10, so that the four connectors are integrated. The four connectors 20 form a 2 × 2 matrix type parallel arrangement on the coupling cap 10, and the four connectors 20 are plugged on the LC adapter at one time, so that the construction efficiency is improved.

In some possible embodiments, the present application further provides a network device, including: an adapter having a connector 20 receptacle; and the optical fiber connecting device 1 described in any of the above embodiments, the other end of the plug 21 of the connector 20 in the longitudinal direction is plugged into the jack of the connector 20.

As described above, the optical fiber connection device of the present application has at least three plugs, which improves the plugging efficiency of the optical fiber connection device on the adapter, reduces the number of times of plugging, and improves the construction efficiency.

Claims

1. An optical fiber connection device, comprising:

the coupling cap is provided with at least three inserting ports which are arranged in one row or multiple rows;

locate the connector of optical cable tip, the connector includes the tail cover and is located at least one plug of tail cover front end, the quantity of plug with at least three socket one-to-one, each the one end of plug is inserted correspondingly with detachably the socket is interior, the other end of plug is used for inserting the adapter.

2. The optical fiber connecting device according to claim 1, wherein the side wall of the plug is provided with a connector housing elastic arm extending outward in a direction toward the tail sleeve, and the side wall of the coupling cap is provided with an elastic arm cooperating with the connector housing elastic arm;

the plug is inserted into the corresponding socket, and the elastic arm of the outer frame of the connector is clamped with the elastic arm so as to fix the plug and the corresponding socket;

3. The optical fiber connecting apparatus according to claim 2, wherein at least two or more of the elastic arms of the connector housing share one of the elastic arms.

4. The fiber optic connection arrangement of any one of claims 1-3, further comprising mounting bases in one-to-one correspondence with the at least three sockets, each of the mounting bases including an insertion end and a connecting end, the insertion end of each of the mounting bases being inserted into a corresponding one of the sockets, the connecting end of each of the mounting bases being connected to the plug.

5. The fiber optic connection arrangement of claim 4, wherein said insertion end of each said mounting base is snap-fit into a corresponding said receptacle.

6. The optical fiber connecting device according to claim 5, wherein one of the insertion end of the mounting base and an inner wall of the socket is provided with a rib, and the other is provided with a slot, and the rib is engaged with the slot.

7. The fiber optic connection arrangement of any one of claims 1-6, wherein the coupling cap is provided with four of the receptacles, the four receptacles being arranged in a row.

8. The optical fiber connecting device according to claim 7, wherein each of the side walls of the plugs is provided with a connector housing elastic arm extending outward in a direction toward the tail sleeve, the connector housing elastic arms of all the plugs are located on the same side, and the side wall of the coupling cap is provided with an elastic arm cooperating with the connector housing elastic arm;

9. The fiber optic connection arrangement of any one of claims 1-6, wherein said coupling cap is provided with four of said sockets, said four sockets being arranged in two rows, each row being provided with two of said sockets.

10. The fiber optic connection device of claim 9, wherein the number of ferrules is one, with one ferrule being common to all of the plugs.

11. The optical fiber connecting device according to claim 10, wherein the tail sleeve is engaged with the coupling cap, a rear end surface of the coupling cap facing away from the plug is provided with a first engaging portion and a second engaging portion, the first engaging portion and the second engaging portion are spaced apart from each other along a first direction, and the first direction is perpendicular to an insertion direction of the plug into the socket;

the tail sleeve is characterized in that a first clamping groove and a second clamping groove are respectively formed in the opposite inner walls of the tail sleeve, the tail sleeve is in butt joint with the rear end face along the direction opposite to the inserting direction, the first buckle extends into the tail sleeve and is clamped with the first clamping groove, and the second buckle extends into the tail sleeve and is clamped with the second clamping groove.

12. The fiber optic connection device of claim 11, wherein the first and second catches are resilient catches, the first catch resiliently abutting the first catch along the first direction, and the second catch resiliently abutting the second catch along the first direction.

13. The fiber optic connection arrangement of any one of claims 10-12, wherein a potting compound is disposed within the boot, the fiber optic cable being a four-core fiber optic cable, the four-core fiber optic cable being connected to all of the plugs within the potting compound by a cable strength member, the cable strength member being cured within the potting compound by glue.

14. The optical fiber connecting device according to any one of claims 9 to 13, wherein the side wall of each row of the plugs is provided with a connector housing elastic arm extending outward in a direction toward the tail sleeve, the connector housing elastic arms of the plugs of each row are located on the same side, the connector housing elastic arms of the plugs of both rows are located on opposite sides, and the side wall of the coupling cap is provided with an elastic arm cooperating with the connector housing elastic arm;

15. The optical fiber connecting device according to any one of claims 9 to 14, wherein the front end surface of the coupling cap is provided with first and second guide plates extending in the insertion direction of the plugs, respectively, the first and second guide plates being spaced apart in a first direction parallel to the arrangement direction of the jacks in each row and being located on opposite sides of all the plugs.

16. A network device, comprising:

an adapter having a connector receptacle;

the fiber optic connection device of any one of claims 1-15, the other end of the plug of the connector being mated with the connector receptacle.