CN216646884U

CN216646884U - Splitter component for optical fiber movable connector

Info

Publication number: CN216646884U
Application number: CN202220085363.XU
Authority: CN
Inventors: 张海焱; 朱丽丽; 周硕
Original assignee: Fiberhome Telecommunication Technologies Co Ltd
Current assignee: Fiberhome Telecommunication Technologies Co Ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-05-31
Anticipated expiration: 2032-01-13

Abstract

The application relates to a branching device assembly for an optical fiber connector, which comprises: a base; the first clamping grooves are formed in the periphery of the base and extend along the axial direction of the base; the shell abutting piece is arranged on the periphery of the base and is positioned between two adjacent first clamping grooves; and the branch pipe fittings are clamped in the first clamping grooves and are internally provided with fiber channels. When the optical fiber branching device is used, the base is taken out of the shell, optical fibers stripped from the optical cable penetrate into the individual branch pipe fittings, then the optical fibers are clamped in the first clamping grooves, then the base is fixed in the shell through the shell abutting part, so that the multi-core optical cable is separated into a plurality of optical fibers and is fixed on the branching device assembly, the operation space for fiber penetration and cable penetration is greatly enlarged, a larger manual operation space is provided, and reliable connection of the optical fibers and quick and convenient laying of the optical cables are realized; and the arrangement of the shell abutting piece and the shell ensures that the splitter component has good pressure resistance.

Description

Splitter component for optical fiber movable connector

Technical Field

The application relates to the technical field of optical fiber branching devices, in particular to a branching device component for an optical fiber movable connector.

Background

The multi-core optical cable can improve the integration density of a unit area of a transmission line, has the characteristics of multiple physical channels, low crosstalk index among fiber cores, good attenuation consistency of each fiber core and the like, and is more and more widely applied to a space division multiplexing ultra-large-capacity optical fiber communication system, a novel large-capacity multi-service access network, a distributed optical fiber sensing system and medical equipment. In an optical communication link, the tail end of the multi-core optical fiber is connected with an optical fiber movable connector in a terminating mode, and the two optical cables can achieve the best physical connection on the premise that low-loss matching is guaranteed. The main connection technical problem currently faced is to realize the branch connection from the multi-core optical cable to the multi-core optical fiber.

In the related technology, the splitter is provided with a pore channel in a cylinder, a multi-core optical cable, a branch optical cable, an optical fiber and the like are penetrated through the pore channel and then fixed by glue. In this way, the following problems exist:

(1) the operating space for threading fibers, cables, etc. is greatly limited.

(2) Because glue is injected into a limited space, the glue is difficult to ensure that each optical fiber is bonded, so that the transmission performance of the optical fiber is poor, and the stability is poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a splitter component for an optical fiber movable connector, which aims to solve the problem that the operation space for fiber threading and cable threading in the limited space in a cylinder body in the related art is limited.

In a first aspect, a splitter component for an optical fiber connector is provided, which includes:

a base;

the first clamping grooves are formed in the periphery of the base and extend in the axial direction of the base;

the shell abutting piece is arranged on the periphery of the base and is positioned between two adjacent first clamping grooves;

and the branch pipe fittings are clamped in the first clamping grooves and internally provided with fiber passing channels.

In some embodiments, the branching tubing comprises:

the branch sleeve is clamped in the first clamping groove;

the branch crimping pipe is arranged at one end of the branch sleeve and used for tightly pressing the branch sleeve in the first clamping groove;

and a branch hollow pipe, a part of which penetrates through the branch sleeve and extends into the branch crimping pipe.

In some embodiments, a stop groove coaxial and communicated with the first clamping groove is arranged on the end surface of the base;

the branch crimping pipe comprises a stopping part and a pressing part, and the pressing part is positioned in the branch sleeve; the diameter of the stopping part is larger than that of the branch sleeve and is clamped in the stopping groove.

In some embodiments, a sliding groove rib is disposed in the stopping groove, and the sliding groove rib contacts with the stopping portion.

In some embodiments, the housing retainer extends in the axial direction of the base, and has a circular arc-shaped cross section.

In some embodiments, the housing retaining member has a protruding limiting portion, and the protruding limiting portion is in transition connection with the first slot along an axially extending slot edge arc of the base.

In some embodiments, a central stiffener passage is provided axially through the base.

In some embodiments, the base comprises a first portion and a second portion coaxially connected, the second portion having a diameter greater than the diameter of the first portion;

the branch pipe sliding grooves corresponding to the first clamping grooves in number are formed in the whole body of the first portion, extend along the axial direction of the base and are communicated with the first clamping grooves.

In some embodiments, the device further comprises a shell with a mounting groove arranged inside, and two ends of the shell are provided with openings communicated with the mounting groove;

one opening is used for penetrating the optical cable, the other opening penetrates through the base with the shell abutting piece, and the base is installed in the installation groove through the shell abutting piece.

In some embodiments, an annular groove is formed in the inner wall of the opening provided with the base, the diameter of the annular groove is larger than that of the mounting groove, and a clamping block is arranged in the annular groove;

a second clamping groove is formed in the end face of the shell abutting piece; the second clamping groove penetrates through one side of the circumferential two sides of the shell abutting piece, and an arc-surface inclined block is arranged on the side; the space between the cambered surface inclined block and the second clamping groove is used for being clamped with the clamping block.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a splitter component for an optical fiber movable connector, wherein a plurality of first clamping grooves are formed in the whole body of a base, and a branch pipe fitting can be clamped and connected through the first clamping grooves; a shell abutting piece is arranged on the periphery of the base and between two adjacent first clamping grooves; when the optical fiber branching device is used, the base is taken out of the shell, then the optical fibers stripped from the optical cable penetrate into each independent branch pipe fitting, then the optical fibers are clamped in the first clamping groove, then the base is fixed in the shell through the shell abutting part, so that the multi-core optical cable is separated into a plurality of optical fibers and fixed on the branching device component, the base can be taken out of the shell, and the branch pipe fittings are directly clamped, the operation space for fiber threading and cable threading is greatly enlarged, a larger manual operation space is provided, crimping and assembly and disassembly can be realized at any time and any place, the operation is convenient, the construction time and the efficiency are saved, and the environmental adaptability is better; and the arrangement of the shell abutting piece and the shell ensures that the splitter component has good pressure resistance.

In addition, after the plurality of optical fibers are fixed on the splitter component, the optical fiber movable connector is connected to each optical fiber, so that the conversion from the optical cable with large core number to the optical fiber with small core number can be effectively realized, and the aim of connecting the optical fiber with small core number by branching the optical cable with large core number is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a splitter assembly and a housing according to an embodiment of the present disclosure;

fig. 2 is an exploded view of a splitter assembly and a housing according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a splitter assembly provided in an embodiment of the present application;

fig. 4 is a schematic view of a splitter assembly provided in an embodiment of the present application without a splitter tube;

fig. 5 is a schematic end view of a splitter assembly provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a branch pipe fitting provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a housing according to an embodiment of the present application.

In the figure: 1. a splitter assembly; 10. a base; 100. a first portion; 101. a second portion; 11. a first card slot; 12. a housing holding member; 13. a branch pipe fitting; 130. a branch sleeve; 131. a branch crimping pipe; 132. a branch empty pipe; 14. a second card slot; 15. a stopper groove; 16. a chute reinforcing rib; 17. an arc surface oblique block; 2. a housing; 20. a clamping block; 3. an optical cable; 4. An optical fiber; 5. an optical cable sleeve; 6. the cable is crimped to the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

Referring to fig. 1, 3 and 4, a splitter assembly for an optical fiber connector includes a base 10, a first slot 11, a housing retainer 12 and a branch pipe 13.

The number of the first clamping grooves 11 is multiple, the first clamping grooves 11 are distributed in a circular ring shape and are formed in the whole body of the base 10, and the first clamping grooves 11 extend along the axial direction of the base 10;

the number of the shell abutting pieces 12 is multiple, and the shell abutting pieces 12 are arranged on the periphery of the base 10 and located between two adjacent first clamping grooves 11, and the shell abutting pieces 12 are used for abutting against the inner wall of the shell 2 in which the optical cable 3 is arranged.

The quantity of branch pipe fittings 13 is a plurality of, and branch pipe fittings 13 joint is in first draw-in groove 11 to seted up in it and walk fine passageway, it is used for passing through optic fibre to walk fine passageway.

When the multi-core optical cable branching device is used, the base 10 is taken out of the shell 2, the optical fibers 4 stripped from the optical cable 3 penetrate into the individual branch pipe fittings 13, then the optical fibers are clamped in the first clamping grooves 11, then the base 10 is fixed in the shell 2 through the shell supporting piece 12, so that the multi-core optical cable is separated into the optical fibers 4 and fixed on the branching device component 1, and therefore the characteristics that the base 10 can be taken out of the shell 2 and the branch pipe fittings 13 are directly clamped are utilized, the operation space for fiber penetration and cable penetration is greatly enlarged, and a larger manual operation space is provided; the optical fiber cable connecting device can realize crimping, assembling and disassembling at any time and any place, is flexible and suitable for various indefinite use conditions, can realize reliable connection of the optical fiber 4 and quick and convenient laying of the optical cable, is convenient to operate, saves construction time and efficiency, and has good environmental adaptability;

furthermore, the arrangement of the housing holding part 12 and the housing 2 enables the splitter component to have good pressure resistance.

In addition, after the optical fibers 4 are fixed on the splitter component 1, the optical fiber movable connector is connected to each optical fiber 4, so that the conversion from the optical cable with large core number to the optical fiber with small core number can be effectively realized, and the purpose of connecting the optical fibers with small core number by branching the optical cable with large core number can be achieved.

The number of the branch pipes 13 can be configured according to the actual requirements of the optical cable 3 such as the core number and the like, and the material and the outer diameter of the splitter component 1 can be changed correspondingly to adapt to different environments.

Referring to fig. 2 and 6, in some preferred embodiments, the branch pipe member 13 includes: a branch sleeve 130, a branch crimp tube 131 and a branch empty tube 132. The branch sleeve 130 is clamped in the first clamping groove 11; the branch crimping pipe 131 is arranged at one end of the branch sleeve 130 and used for compressing the branch sleeve 130 in the first clamping groove 11; a portion of a branch hollow tube 132 extends through the branch sleeve 130 and into the branch crimp tube 131.

The branch crimping tube 131 is a T-shaped metal component with a full through hole inside, the branch sleeve 130 is a ring-shaped metal component with a full through hole inside, the optical fiber 4 can be coupled in a centering way and pass through the through holes of the branch sleeve 130 and the branch crimping tube 131, the branch sleeve 130 is pushed into the T-shaped bottom of the branch crimping tube 131 and is crimped and fixed, and then the crimping and the assembly of the optical fiber 4 can be completed.

Furthermore, a stop groove 15 which is coaxial and communicated with the first clamping groove 11 is arranged on the end surface of the base 10; the branch crimping pipe 131 includes a stopper portion and a pressing portion, the pressing portion being located inside the branch sleeve 130; the diameter of backstop portion is greater than the diameter of branch sleeve pipe 130 to the block is in backstop groove 15, and the setting up of backstop portion makes the spliter subassembly not only have the performance of resistance to compression but also have tensile function, and more stable connection.

Further, a sliding groove reinforcing rib 16 is arranged in the stopping groove 15, the sliding groove reinforcing rib 16 is in contact with the stopping portion, the number of the first clamping grooves 11 is determined according to actual requirements, for example, 6 clamping grooves are arranged in the embodiment, the optical cable 3 with 72 cores can be separated into 6 bundles of optical fibers 4 with 12 cores, and each bundle of optical fibers 4 can penetrate into the independent branch pipe fitting 13. The chute reinforcing rib 16 plays a role in reinforcing and anti-skidding fastening the branch pipe fittings 13 clamped in the first clamping grooves 11.

Referring to fig. 4 and 5, in some preferred embodiments, the housing retainer 12 extends in the axial direction of the base 10 and has a circular arc-shaped cross section. The arc shape is convenient to abut against the inner wall of the shell 2.

Furthermore, the housing abutting part 12 is provided with a protruding limiting part, the protruding limiting part and the first clamping groove 11 are in arc transition connection along the groove edge of the axial extension of the base 10, and the arrangement enables the branch pipe fitting 13 clamped in the first clamping groove 11 to be further fastened, so that the falling-off condition cannot occur.

Referring to fig. 3 and 4, a central strength member passage is provided axially through the base 10 for passage of a central strength member of the fiber optic cable. The base 10 comprises a first portion 100 and a second portion 101 coaxially connected, the diameter of the second portion 101 being greater than the diameter of the first portion 100; the first portion 100 is provided with branch pipe sliding grooves corresponding to the number of the first engaging grooves 11 on the circumference, and the branch pipe sliding grooves extend in the axial direction of the base 10 and communicate with the first engaging grooves 11, so that the branch pipe members 13 and the base 10 are closely attached.

Referring to fig. 3 to 5, in order to realize further stable connection, the splitter component further includes a housing 2, the housing 2 is provided with a mounting groove inside the housing 2, and both ends of the housing 2 are provided with openings communicated with the mounting groove; one of the openings is used for passing through the optical cable 3, the other opening is used for passing through the base 10 with the shell abutting piece 12, and the base 10 is installed in the installation groove through the shell abutting piece 12.

The shell 2 is a plastic annular cylinder with a full through hole inside, the two ends of the shell 2 are different in size, and the end with the smaller outer diameter of the shell 2 is used for connecting the optical cable 3 and the optical cable sleeve 5 and the optical cable crimping pipe 6 which are matched with the optical cable 3; the end of the outer shell 2 with larger outer diameter is used for connecting the optical fiber 4 and the matched splitter component 1.

This mode is fixed for only relying on the frictional force of holding, avoids droing, but has certain risk of droing when considering that the in-service use exists, therefore has carried out further setting, specifically as follows:

an annular groove is formed in the inner wall of the opening provided with the base, the diameter of the annular groove is larger than that of the mounting groove, and a clamping block 20 is arranged in the annular groove; a second clamping groove 14 is arranged on the end surface of the shell abutting piece 12; on the two sides of the circumferential direction of the housing holding piece 12, the second clamping groove 14 penetrates through one side, an arc-shaped inclined block 17 is arranged on the side, and a space between the arc-shaped inclined block 17 and the second clamping groove 14 is used for being clamped with the clamping block 20.

Through the arrangement, the arrangement of the annular groove ensures that the groove with the shell abutting piece 12 can enter the installation groove; when the base 10 is placed in the housing 2, in order to avoid the blocking of the fixture blocks 20, the fixture blocks 20 penetrate through between two adjacent housing supporters 12; after the base 10 is in place, rotating the base 10, firstly enabling the fixture block 20 to be in contact with the cambered inclined block 17, then enabling the fixture block to enter a space between the cambered inclined block 17 and the second clamping groove 14, enabling the cambered inclined block 17 and the second clamping groove 14 to act simultaneously, and completing clamping connection of the fixture block 20, so that the fixture block 20 limits the axial movement of the base 10;

the cambered surface inclined blocks 17 are arranged clockwise due to the cambered surfaces, and the plurality of cambered surface inclined blocks 17 are arranged in the same direction; the fixture block 20 is guided in the entering process, and the fixture block 20 is clamped with the second clamping groove 14 to play a certain limiting and locking role; when the disassembly is needed, the disassembly can be realized by applying a certain force and overcoming the resistance generated by the cambered surface inclined block 17.

Therefore, the optical fiber 4 can be reliably connected only through the knob, and the optical cable can be conveniently and rapidly laid.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

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

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

Claims

1. A splitter assembly for an optical fiber connector, comprising:

a base (10);

a plurality of first card slots (11) which are arranged on the periphery of the base (10) and extend along the axial direction of the base (10);

the shell abutting piece (12) is arranged on the periphery of the base (10) and is positioned between two adjacent first clamping grooves (11);

the fiber distribution device comprises a plurality of branch pipe fittings (13), wherein the branch pipe fittings (13) are clamped in the first clamping grooves (11) and are internally provided with fiber passing channels.

2. The splitter assembly for an optical fiber connector according to claim 1, wherein the branching tube member (13) comprises:

a branch sleeve (130) clamped in the first clamping groove (11);

a branch crimping pipe (131) which is arranged at one end of the branch sleeve (130) and compresses the branch sleeve (130) in the first clamping groove (11);

and a branch hollow tube (132) having a portion thereof inserted through the branch sleeve (130) and extending into the branch crimping tube (131).

3. A splitter assembly for an optical fiber connector according to claim 2, wherein:

a stop groove (15) which is coaxial and communicated with the first clamping groove (11) is arranged on the end face of the base (10);

the branch crimping pipe (131) comprises a stopping part and a pressing part, and the pressing part is positioned in the branch sleeve (130); the diameter of the stopping part is larger than that of the branch sleeve (130), and the stopping part is clamped in the stopping groove (15).

4. A splitter assembly for an optical fiber connector according to claim 3, wherein:

a sliding groove reinforcing rib (16) is arranged in the stopping groove (15), and the sliding groove reinforcing rib (16) is in contact with the stopping part.

5. A splitter assembly for an optical fiber connector according to claim 1, wherein:

the shell abutting piece (12) extends along the axial direction of the base (10), and the cross section of the shell abutting piece is arc-shaped.

6. A splitter assembly for an optical fiber connector according to claim 5, wherein:

the shell abutting piece (12) is provided with a protruding limiting part, and the protruding limiting part is in transition connection with the first clamping groove (11) along the groove edge arc extending along the axial direction of the base (10).

7. A splitter assembly for an optical fiber connector according to claim 1, wherein:

a central reinforcing piece channel axially penetrates through the base (10).

8. A splitter assembly for an optical fiber connector according to claim 1, wherein:

the base (10) comprises a first part (100) and a second part (101) which are coaxially connected, the diameter of the second part (101) is larger than that of the first part (100);

branch pipe sliding grooves corresponding to the first clamping grooves (11) in number are formed in the periphery of the first portion (100), extend along the axial direction of the base (10), and are communicated with the first clamping grooves (11).

9. A splitter assembly for an optical fiber connector according to claim 1, wherein:

the device also comprises a shell (2) with a mounting groove arranged inside, and openings communicated with the mounting groove are arranged at two ends of the shell (2);

one opening is used for passing through the optical cable (3), the other opening passes through a base (10) with a shell abutting piece (12), and the base (10) is installed in the installation groove through the shell abutting piece (12).

10. A splitter assembly for a fiber optic pigtail connector as recited in claim 9, wherein:

an annular groove is formed in the inner wall of the opening provided with the base (10), the diameter of the annular groove is larger than that of the mounting groove, and a clamping block (20) is arranged in the annular groove;

a second clamping groove (14) is formed in the end face of the shell abutting piece (12); on two sides of the circumferential direction of the shell abutting piece (12), a second clamping groove (14) penetrates through one side, and an arc-surface inclined block (17) is arranged on the side; the space between the cambered surface inclined block (17) and the second clamping groove (14) is used for being clamped with the clamping block (20).