CN215449669U

CN215449669U - Optical fiber coupler

Info

Publication number: CN215449669U
Application number: CN202121747888.7U
Authority: CN
Inventors: 刘昊
Original assignee: Shenyang Telecom Engineering Co ltd
Current assignee: Shenyang Telecom Engineering Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-07
Anticipated expiration: 2031-07-29

Abstract

The utility model provides an optical fiber coupler, which relates to the technical field of optical fiber couplers and comprises a first binding post, a deconcentrator and a second binding post, wherein the first binding post is positioned below the deconcentrator, and the second binding post is provided with four binding posts which are uniformly arranged at the top of the deconcentrator; a top cover is covered on the top of the deconcentrator, four through holes which correspond to the second binding posts one by one are formed in the top cover and communicated with the inside of the top cover, four thread grooves are formed in the top cover, and the four thread grooves are respectively positioned on the periphery of the four through holes; a limiting pipe is in threaded connection with each thread groove, notches are formed in the upper portions of the left side and the right side of the inner wall of each limiting pipe, and springs are horizontally fixed in the notches; the utility model has the beneficial effects that: the four branch optical fibers can be positioned one by one, so that the four branch optical fibers are more firmly connected with the four wiring terminals, the loosening phenomenon of the four branch optical fibers is effectively avoided, and meanwhile, the four branch optical fibers can be prevented from being wound together.

Description

Optical fiber coupler

Technical Field

The utility model relates to the technical field of optical fiber couplers, in particular to an optical fiber coupler.

Background

The optical fiber coupler, also called splitter, connector, adapter, optical fiber flange, is an element for realizing optical signal splitting/combining or for extending optical fiber link, belongs to the field of optical passive element, and can be applied to telecommunication network, cable television network, user loop system and local area network, and can be used as optical device for realizing distribution or combination of optical signal power between different optical fibers.

In the prior art, a plurality of binding posts are arranged on the optical fiber coupler, a plurality of shunt optical fibers are respectively connected with the plurality of binding posts one by one, the plurality of shunt optical fibers are easily wound together in the installation process, and the connected shunt optical fibers are easy to loosen.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the optical fiber coupler is provided, four branch optical fibers can be positioned one by one, the connection of the four branch optical fibers and four binding posts is more firm, the loosening phenomenon of the four branch optical fibers is effectively avoided, and meanwhile the four branch optical fibers can be prevented from being wound together.

The purpose and the effect of the utility model are achieved by the following specific technical means:

an optical fiber coupler comprises a first binding post, a deconcentrator and a second binding post, wherein the first binding post is positioned below the deconcentrator, and the second binding post is provided with four binding posts which are uniformly arranged at the top of the deconcentrator;

a top cover is covered on the top of the deconcentrator, four through holes which correspond to the two binding posts one by one are formed in the top cover and communicated with the inside of the top cover, four thread grooves are formed in the top of the top cover, and the four thread grooves are respectively positioned on the periphery of the four through holes;

every equal threaded connection has spacing pipe in the thread groove, the notch has all been opened to spacing inside pipe wall left and right sides top, equal horizontally fixed has the spring in the notch, the spring end all is fixed with the removal post, it wears out the notch and lies in spacing intraductal to remove the post end, just it all is fixed with the grip block to remove the post end.

Further preferred embodiments: the wiring terminal is characterized in that a lower mounting piece is fixed to the top of the wiring terminal, an upper mounting piece is fixed to the bottom of the wire divider, and the upper mounting piece and the lower mounting piece are vertically distributed and are connected through screws.

Further preferred embodiments: and a bottom cover is covered on the outer part of the binding post, and the bottom cover plays a role in protecting the binding post.

Further preferred embodiments: the first binding post and the second binding post are both electrically connected with the deconcentrator through wires and can be connected with optical fibers.

Further preferred embodiments: and the middle of the inside of the limiting pipe is fixed with a sealing ring.

Compared with the prior art, the utility model has the beneficial effects that:

according to the optical fiber coupler, the bottom cover covers the first binding post, so that the bottom cover can protect the first binding post and prevent foreign objects from affecting the first binding post;

the bottom cover is opened downwards, one end of the optical fiber can be connected to the lower end of the binding post, and the effect of separating a plurality of optical fiber circuits is achieved through the arrangement of the splitter;

when the top cap was covered, the inside optic fibre of top cap was in the nature state of straightening, because the spring has elasticity, can make removal post and grip block remove to the optic fibre direction, and then make two grip block centre grippings in the spacing pipe outside at optic fibre, through setting up of the setting and the through-hole of spacing pipe and grip block, can carry out the one-to-one location to four optical fibres along separate routes, it is more firm to be favorable to four optical fibres along separate routes to be connected with four terminals two, effectively avoid four optical fibres along separate routes not hard up phenomenon to appear, can avoid four optical fibres along separate routes to twine together simultaneously.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic three-dimensional structure of a lower mounting plate, a first wiring terminal, an upper mounting plate and a wire divider of the present invention;

FIG. 3 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 4 is a schematic view of a portion of the structure shown in FIG. 3A according to the present invention.

The labels in the figure are: the device comprises a lower mounting piece 1, a first binding post 2, an upper mounting piece 3, a deconcentrator 4, a second binding post 5, a thread groove 6, a bottom cover 7, a top cover 8, a through hole 9, a limiting pipe 10, a sealing ring 11, a notch 12, a spring 13, a movable column 14 and a clamping block 15.

Detailed Description

Referring to fig. 1-4, embodiments of the present invention are further illustrated;

an optical fiber coupler comprises a first binding post 2, a deconcentrator 4 and a second binding post 5, wherein the first binding post 2 is positioned below the deconcentrator 4, and the second binding post 5 is provided with four binding posts which are uniformly arranged at the top of the deconcentrator 4;

a lower mounting piece 1 is fixed to the top of the binding post I2, an upper mounting piece 3 is fixed to the bottom of the deconcentrator 4, and the upper mounting piece 3 and the lower mounting piece 1 are distributed vertically and connected through screws;

the first binding post 2 and the second binding post 5 are both electrically connected with the deconcentrator 4 through wires, and both the first binding post 2 and the second binding post 5 can be connected with optical fibers;

specifically, the first binding post 2 and the deconcentrator 4 are fixed together by using the upper mounting sheet 3 and the lower mounting sheet 1, and the first binding post 2 and the second binding post 5 are both used for connecting optical fibers;

a bottom cover 7 is covered outside the first wiring column 2, and the bottom cover 7 plays a role in protecting the first wiring column 2;

a top cover 8 is covered on the top of the deconcentrator 4, four through holes 9 which correspond to the wiring terminals II 5 one by one are formed in the top of the top cover 8, the through holes 9 are communicated with the inside of the top cover 8, four thread grooves 6 are formed in the top of the top cover 8, and the four thread grooves 6 are respectively positioned on the peripheries of the four through holes 9;

specifically, the bottom cover 7 covers the first wiring terminal 2, so that the bottom cover 7 can protect the first wiring terminal 2 and prevent foreign objects from affecting the first wiring terminal 2, and the top cover 8 covers the top of the deconcentrator 4, so that the four wiring terminals two 5 at the top of the deconcentrator 4 are all positioned in the top cover 8, and the four wiring terminals two 5 can be protected;

a limiting pipe 10 is in threaded connection with the inside of each thread groove 6, notches 12 are formed in the upper portions of the left side and the right side of the inner wall of each limiting pipe 10, springs 13 are horizontally fixed in the notches 12, moving columns 14 are fixed at the tail ends of the springs 13, the tail ends of the moving columns 14 penetrate through the notches 12 and are located in the limiting pipes 10, and clamping blocks 15 are fixed at the tail ends of the moving columns 14;

a sealing ring 11 is fixed in the middle of the inner part of the limiting pipe 10;

specifically, when the optical fiber coupler is used, the bottom cover 7 is opened downwards, one end of an optical fiber can be connected to the lower end of the first binding post 2, the splitter 4 is arranged to separate a plurality of optical fiber circuits, the top cover 8 is opened upwards, four optical fibers needing to be split can be installed on the top of the second binding post 5 on the splitter 3, then the outer ends of the four optical fibers in the split are respectively inserted into the four through holes 9, then the optical fibers penetrate through the sealing ring 11 and enter the space between the two clamping blocks 15, and then the optical fibers penetrate out of the limiting tube 10, in the process, the two clamping blocks 15 are extruded by the optical fibers, so that the clamping blocks 15 move and drive the movable column 14 to move towards the notch 12, and the movable column 14 extrudes the spring 13 in the notch 12;

then, the four branch optical fibers are held, the top cover 8 is moved downwards, the top cover 8 can be covered on the top of the deconcentrator 4, when the top cover 8 is covered, the optical fibers in the top cover 8 are in a natural straightening state, the movable column 14 and the clamping blocks 15 can move towards the optical fibers due to the elasticity of the spring 13, and then the two clamping blocks 15 in the limiting tube 10 are clamped outside the optical fibers, through the arrangement of the limiting tube 10 and the clamping blocks 15 and the arrangement of the through holes 9, the four branch optical fibers can be positioned one by one, the connection between the four branch optical fibers and the four binding posts two 5 is more firm, the loosening phenomenon of the four branch optical fibers is effectively avoided, and meanwhile, the four branch optical fibers can be prevented from being wound together;

when the branch optical fiber is penetrated in the sealing ring 11, the outer wall of the branch optical fiber is in close contact with the inner wall of the sealing ring 11, and the arrangement of the sealing ring 11 can prevent rainwater and dust from entering the top cover 8.

Claims

1. The utility model provides an optical fiber coupler, includes terminal (2), deconcentrator (4) and terminal two (5), terminal (2) are located deconcentrator (4) below, terminal two (5) are equipped with four and evenly install in deconcentrator (4) top, its characterized in that:

a top cover (8) is covered on the top of the deconcentrator (4), four through holes (9) which correspond to the wiring terminals II (5) one by one are formed in the top cover (8), the through holes (9) are communicated with the inside of the top cover (8), four thread grooves (6) are formed in the top cover (8), and the four thread grooves (6) are respectively positioned on the peripheries of the four through holes (9);

every equal threaded connection has spacing pipe (10) in thread groove (6), notch (12) have all been opened to spacing pipe (10) inner wall left and right sides top, equal level is fixed with spring (13) in notch (12), spring (13) end all is fixed with removes post (14), remove post (14) end and wear out notch (12) and lie in spacing pipe (10), just it all is fixed with grip block (15) to remove post (14) end.

2. A fiber optic coupler according to claim 1, wherein: the wiring terminal I (2) top is fixed with down installation piece (1), deconcentrator (4) bottom is fixed with installation piece (3), it distributes and passes through screwed connection about being with lower installation piece (1) to go up installation piece (3).

3. A fiber optic coupler according to claim 1, wherein: the external of the first binding post (2) is covered with a bottom cover (7), and the bottom cover (7) plays a role in protecting the first binding post (2).

4. A fiber optic coupler according to claim 1, wherein: the wiring terminal I (2) and the wiring terminal II (5) are both electrically connected with the deconcentrator (4) through wires, and the wiring terminal I (2) and the wiring terminal II (5) can be connected with optical fibers.

5. A fiber optic coupler according to claim 1, wherein: and the middle inside the limiting pipe (10) is fixed with a sealing ring (11).