WO2016149912A1

WO2016149912A1 - Optical interconnection device for connecting twin-core cable and assembly process thereof

Info

Publication number: WO2016149912A1
Application number: PCT/CN2015/074987
Authority: WO
Inventors: 丁有翔; 陈新军; 王七月; 周震
Original assignee: 深圳日海通讯技术股份有限公司
Priority date: 2015-03-24
Filing date: 2015-03-24
Publication date: 2016-09-29

Abstract

An optical interconnection device for connecting twin-core cables comprises a mutually connected base (1), a frame cover (2), and a core insertion assembly (3) respectively inserted in the base (1) and the frame cover (2). The base (1) is pivotally connected to a tail cap (4), forming a closed housing cavity with the base (1). A track groove (11) is provided at a bottom of the closed housing cavity of the base (1). A fiber insertion slider (5) is moved completely into the closed housing cavity of the base (1) as a tongue (52) of the fiber insertion slider (5) slides along the track groove (11). A connecting part (6) protrudes at an exposed end of the fiber insertion slider (5). An assembly method comprises the following steps: placing the core insertion assembly (3) into a cavity (12) of the base (1); installing the frame cover (2) on the base (1); disposing a pivot hole (723) of a connecting rod (72) on a pivot rod (71) of a slider (73), and disposing the other pivot hole (724) of the connecting rod (72) on a pivot shaft of the tail cap (4); fitting the slider (73) into an opening slot (16) of the base (1); fitting an extending plate (733) of the slider (73) into a sliding track (37) of the core insertion assembly (3); disposing a pivot hole (44) of the tail cap (4) in a pivot shaft (17) of the base (1); placing the fiber insertion slider (5) into the base (1); passing an optical fiber through a shaft hole along the core insertion assembly (3); closing the tail cap (4); tightly fitting a leather cable holding portion (62), and locking a tail nut (8).

Description

Optical interconnect device for connecting two-core optical cable and assembly process thereof

Technical field

The present invention relates to an optical interconnect device for splicing a two-core optical cable and an assembly process thereof.

Background technique

CN201280066388.4 discloses a field installable duplex fiber optic connector having a mechanical splice component, the object of which is to provide a field mountable fiber optic connector for terminating a dual fiber optic cable. The technical solution: a field installable fiber optic connector for terminating a dual fiber optic cable, the fiber optic connector comprising: a bifurcated housing having spaced apart parallel first stem portions extending from the cable furcation unit and a second trunk portion; wherein the cable branching unit comprises a thread receiving portion and a fiber sheath clamping portion for clamping the cable jacket of the dual fiber cable; the first collar body and the second collar body are respectively disposed on the first trunk a portion and a second trunk portion, wherein each collar body includes a fiber stub disposed in the first end of the collar body, the fiber stub comprising a first end mounted in the sleeve and a short ferrule fiber of the second end, the first end being adjacent to the end surface of the sleeve, wherein each collar body further comprises a mechanical joint device disposed within the collar body, the mechanical joint device being configured to insert a short plug The second end of the core fiber is spliced to the fiber of the dual fiber cable; the first outer casing and the second outer casing are respectively disposed on the first trunk portion and the second trunk portion, and wherein the first outer casing and second The outer casing is configured to be engageable with two adjacent sockets; and a protective cover attachable to the threaded receiving portion of the cable furcation unit, wherein the protective cover actuates the cable furcation unit when attached to the threaded receiving portion The fiber jacket is clamped to the part. The downsides are: (1) Since the fiber optic connector is used in the factory building, the inside of the pedestal or the FTTH access building branches into the end of the outdoor optical cable at both ends. The operation equipment on the site is limited, and the operation 窨 is limited. Excessive installation steps will inevitably lead to inconvenient operation on site. Moreover, the construction personnel at the site understand the ability to be uneven. If the installation steps are too complicated, it may cause some personnel to misuse. (2) Since the fiber optic connector is in many cases, the operation time is too long, which may cause dissatisfaction of the household. (3) If the fiber optic connector cannot be repeatedly disassembled, the product must be scrapped in the event of assembly failure, which is too costly for the construction unit.

technical problem

It is an object of the present invention to provide an optical connection to a radio, including a data center, in a field, without the use of a termination platform or a separate crimping tool, and an easy-to-use field termination for optical interconnection of a twin-core cable Device. Another object of the present invention is to provide an assembly process for a dual-fiber bidirectional optical interconnect device for connecting a dual-core optical cable that is simple to use, easy to install, and used in FTTH, FTTX network installation, wireless applications, and easy-to-use field termination. .

Technical solution

The technical solution of the present invention is the dual-fiber bidirectional optical interconnect device for connecting the two-core optical cable, comprising an interconnected base, an outer frame sleeve, and a ferrule assembly respectively sleeved in the base and the outer frame sleeve, the base The tail cover is also pivotally connected with the base to form a closed casing. The special feature is that the bottom of the closed casing of the base is provided with a track groove, and the fiber-piercing sliding block is sliding along the track groove along the tongue. The housing is closed into the closed cavity of the base, and the exposed end of the fiber-optic slider protrudes with a connecting portion.

Preferably, the connecting portion is composed of a semicircular external thread portion and a cable clamping portion protruding along the semicircular external thread portion; the connecting portion is provided with a semicircular external thread, and the semicircular external thread and the corresponding portion of the tail cap are disposed. The semi-circular external thread is fastened and fastened by a nut to realize the double-core optical cable.

Preferably, the fiber-piercing slider is formed by a three-sided forming wall and an open cavity, a tongue which is convexly fitted to the base track groove along the middle of the open end, and a corresponding wall corresponding to the other end of the tongue. The opening portion and the connecting portion protruding along the outside of the opening, the buckled portion of the cavity surrounding the tongue portion, and the fiber-dividing guiding member symmetrically protruding at the bottom of the buckle cavity are formed.

Preferably, the cavity is located at an open end of the connecting portion, and a pre-fibrating portion is protruded; the pre-fibrating portion is cut by a block body, a shaft-shaped wall of the block body, and two sides of the supporting wall respectively The tongue end is composed of a sloping wall composed of a low end of the connecting portion.

Preferably, the base is a cavity formed by three sides of the surrounding wall, an open cavity, a track groove provided at the bottom of the cavity along the middle of the open end, a perforation of the track groove end wall and the surrounding walls on both sides of the track groove, The first housing and the second housing, the first housing and the second housing, which are respectively parallel and outwardly extending along the two sides of the perforating groove, respectively, and the first housing and the second housing are used for accommodating the top wall of the cavity of the ferrule assembly and the cavity The through opening, the connecting rod mechanism in the opening, and the cavity surrounding wall perpendicular to the surrounding walls of the track groove are symmetrically protruded from the pivoting shaft for pivoting the tail cover.

Preferably, the link mechanism is composed of a pivotally connected connecting rod and a slider; the connecting rod is formed by two parallel frames like H-shaped, two connecting blocks integrally formed in the middle of two parallel frames, and two parallel frames. The open end is respectively formed by a pivot hole for pivoting through the sleeve; the slider is composed of a strip-shaped plate body and a strip-shaped plate body extending along the central axis, and one end of the rib plate is substantially half of the strip-shaped plate body The other end of the rib plate and the rib plate having the protruding protrusion size larger than the rib plate is disposed along the side wall perpendicular to the central axis of the rib plate, the square column tube and the central axis of the strip plate body beyond the boundary of the strip plate body. There is a pivotal pivotal connection with the pivot hole of the connecting rod.

Preferably, the tail cap is defined by a shape corresponding to the shape of the base cavity and is formed by a three-sided wall and an open cavity, and an opening is formed along the corresponding portion of the wall at the other end of the cavity. The protruding portion of the outer protruding portion, the pivot hole formed by the pivot portion corresponding to the surrounding wall of the base cavity, and the corresponding connecting rod mechanism portion of the bottom of the cavity are symmetrically provided with the embedded hole for inserting the link mechanism, and the two sides of the through hole are convex. The pillar and the pillar are provided with a pivot shaft which is perpendicular to the pillar and is connected to the pivot hole of the link mechanism.

Preferably, the ferrule assembly comprises a ferrule holder, a ferrule extending from the ferrule holder, a pressing block attached to the ferrule holder, and a spring, a ferrule connecting the pressing block and the ferrule holder together The spring on the seat post tube and the spring stop position on the ferrule seat tube are composed.

Preferably, the ferrule holder is formed by one end of the column tube and the column tube, a square frame for inserting a semi-groove shape into the pressure block, an end seat integrally formed at the end of the square frame, and an optical fiber recessed on the plane of the square frame. The groove, the through-column, the square frame and the shaft hole of the end seat are composed.

Another technical solution of the present invention is the assembly process of the optical interconnection device for connecting the two-core optical cable, which is special in that it includes the following steps:

(1) respectively inserting two ferrule assemblies into the corresponding cavity of the base;

(2) fitting the outer frame sleeve assembly on the first housing of the base and the second housing of the base;

(3) After the pivot hole on the connecting rod is set on the pivot of the slider, the other pivot hole of the connecting rod is sleeved on the pivot on the tail cover, and the slider is then snapped into the open slot on the base. The extending rib on the slider is snapped into the sliding slot on the ferrule assembly, and finally the pivot hole on the tail cover is inserted into the pivot on the base;

(4) The fiber is stretched in parallel according to the track set by the fiber-distributing guide member of the fiber-optic slider, and the tongue of the fiber-optic slider is moved along the corresponding sliding slot of the base, and the fiber-optic slider is loaded into the base, and the fiber is Passing through the shaft hole of the ferrule assembly;

(5) Close the cable and close the tail cover, so that the semicircular external thread of the connecting part is engaged with the semicircular external thread provided at the corresponding part of the tail cap, and the tail nut is locked to realize the double-core optical cable.

Beneficial effect

(1) The fiber-optic slider of the present invention firstly fixes the optical fiber to the pre-fibration portion, and then inserts the optical fiber on the entire fiber-piercing module into the two ferrule centering components at the same time, saving labor and time. ,efficient.

(2) The two outer frame sleeve structures are lapped together into one piece, and the linkage and simultaneous adjustments reduce the error. The two outer frame sleeves slide synchronously, and the outer frame sleeve should be synchronized when the adapter is inserted and pulled out.

(3) When the fiber-piercing slider is stuck into the buckle on the base, the two fiber end faces will respectively contact the pre-embedded fiber ends in the ferrule assembly. Since the two fibers reserve a certain amount of interference, the two fibers will have a certain degree of microbend. Throughout the process, the fiber is ensured that the fiber hits the pre-buried fiber end at the same time, and produces the same amount of microbend.

(4) The fiber-optic fiber-optic slider, the two fibers are separated by a certain parallel distance through the fiber-piercing parts and then penetrated into the ferrule assembly.

(5) When handling a lot of work or when the labor of the staff is expensive, the connector requires simple use and is easy to operate.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic exploded view showing the structure of an optical interconnection device for connecting a two-core optical cable of the present invention.

2 is a perspective view of an optical interconnection device for connecting a two-core optical cable of the present invention.

3 is a structural exploded view of the optical interconnect device tail cover of the present invention for connecting the two-core optical cable when it is opened.

Figure 4 is a front elevational view of the optical interconnect device of the present invention for splicing a dual core fiber optic cable.

Fig. 5 is a cross-sectional view taken along line A-A of Fig. 4;

Figure 6 is a schematic illustration of the pre-fibrated state of an optical interconnect device for use in a continuous twin-core cable of the present invention.

7 and FIG. 8 are schematic diagrams showing the state of fiber separation of the optical interconnect device of the dual-core optical cable according to the present invention.

Main component symbol description:

Base 1, track groove 11, cavity 12, perforation 13, first housing 14, second housing 15, open slot 16, pivot 17, outer frame 2, ferrule assembly 3, ferrule holder 31, end Seat 311, square frame 312, ferrule 32, pressure block 33, wrap spring 34, column tube 35, stop position 351, spring 36, chute 37, tail cover 4, housing cavity 41, opening 42, connection portion 43 , the pivot hole 44 , the insertion hole 45 , the pivot 46 , the semicircular external thread 47 , the fiber insertion slider 5 , the cavity 51 , the tongue 52 , the opening 53 , the fiber distribution guide member 54 , the buckle 55 , and the pre-fibration portion 56 The block body 561, the support wall 562, the slope wall 563, the connecting portion 6, the half threaded portion 61, the cable holding portion 62, the link mechanism 7, the pivot 71, the connecting rod 72, the parallel frame 721, and the connecting block 722 , the pivot hole 723, the pivot hole 724, the slider 73, the strip plate 731, the rib 732, the extension rib 733, the square column tube 734, the tail nut 8, the fiber distribution guide fulcrum I, and the fiber distribution guide fulcrum II.

BEST MODE FOR CARRYING OUT THE INVENTION

The invention will be further described in detail below with reference to the accompanying drawings:

Referring to FIG. 1 to FIG. 5 , the dual-fiber bidirectional optical interconnect device for connecting the double-core optical cable includes a base 1 and an outer frame sleeve 2 , and respectively inserts the ferrules in the base 1 and the outer frame 2 . The assembly 3 has a tail cover 4 pivotally connected to the base 1. The bottom of the closed casing of the base 1 is provided with a track groove 11. The penetrating slider 5 is integrally moved into the base 1 with the sliding movement of the tongue 52 along the track groove 11. In the cavity, the exposed end of the fiber insertion slider 5 protrudes with a connecting portion 6 composed of a semicircular external thread portion 61 and a cable gripping portion 62 protruding along the semicircular external thread portion 61, the connection The semicircular external thread 61 of the portion 6 is engaged with the semicircular external thread 47 provided at the corresponding portion of the tail cover 4, and then fixed by the nut 8 to realize the holding of the double-core optical cable.

Referring to FIG. 1 and FIG. 6 to FIG. 8 , the fiber-piercing slider 5 is formed by a cavity 51 having a three-sided forming wall and an opening on one side, and the cavity 51 is convexly fitted to the base track groove 11 along the middle of the open end. The tongue 52 and the corresponding portion of the wall of the opposite end of the tongue 52 define an opening 53 and a connecting portion 6 protruding along the outside of the opening, and a buckle 55 recessed around the cavity surrounding the tongue 52. The cavity 51 of the position 55 is composed of a split guiding member 54 which is symmetrically protruded at the bottom.

In this embodiment, the cavity 51 is located at the open end of the connecting portion 6 and is provided with a pre-fibrating portion 56. The pre-fibrating portion 56 is composed of a block body 561, a block body 561, and a shaft supporting wall 562. Both sides of the support wall 562 are respectively cut into a sloping wall 563 having a high end of the tongue portion 52 and a low end of the connecting portion 6.

In this embodiment, the base 1 is formed by a three-sided forming wall and an open cavity 12, a bottom of the cavity 12 along the middle of the open end, a track groove 11, an end wall of the track groove 11 and two sides of the track groove 11 The first housing 14 and the second housing 15, the first housing 14 and the second housing 15 are respectively disposed on the surrounding wall, and the first housing 14 and the second housing 15 are respectively arranged in parallel with the surrounding wall. The top wall of the cavity 12 of the accommodating ferrule assembly 3 defines an opening 16 penetrating the cavity 12, a link mechanism 7 disposed in the opening 16, and a cavity 12 surrounding the wall on both sides of the track groove 11 The symmetrical protrusion is composed of a pivot 17 for pivoting the pivot hole 44 of the tail cover 4.

Referring to FIG. 1, the link mechanism 7 is composed of a connecting rod 72 pivotally connected via a pivot 71 and a slider 73. The connecting rod 72 is formed by an H-shaped parallel frame 721 and a second parallel frame 721. The integrally formed connecting block 722 and the two open ends of the two parallel frames 721 respectively form a pivot hole 723 for the pivot shaft 71 to pass through; the slider 73 is convex by the strip plate body 731 and the strip plate body 731 along the central axis. One end of the stretched rib 732 and the rib 732 is further protruded along a substantially half of the strip-shaped plate 731 to be larger than the extended rib 733 of the rib 732, and the other end of the rib 732 is convex along the boundary of the strip-shaped plate 731. The side wall tube 734 having a larger size than the rib 732, and the side wall of the square column tube 734 perpendicular to the central axis of the strip plate 731 are provided with a pivot 71 pivotally connected to the link pivot hole 723.

Referring to FIG. 1 and FIG. 3, the tail cover 4 is defined by a shape corresponding to the shape of the base cavity 12 and is formed by a three-sided peripheral wall with an open cavity 41 and a cavity 41 opposite to the other end of the opening. An opening 42 is formed in the corresponding portion of the surrounding wall, a connecting portion 43 protruding along the outside of the opening 42, a pivot hole 44 corresponding to the pivot portion 17 corresponding to the surrounding wall of the base cavity 12, and a bottom portion corresponding to the link mechanism 7 at the bottom of the housing cavity 41 The insertion hole 45 into which the link mechanism 7 is inserted, the support column which protrudes from both sides of the insertion hole 45, and the support column are provided with a pivot 46 which is sleeved with the pivot hole 723 of the link mechanism 7 perpendicularly to the support post.

Referring to FIG. 1, the ferrule assembly 3 is composed of a ferrule holder 31, a ferrule 32 extending from the ferrule holder 31, a pressing block 33 attached to the ferrule holder 31, and a pressing block 33 and a plug. The core spring 31 is joined together by a wrap spring 34, a spring 36 fitted on the ferrule holder tube 35, and a spring stop position 351 provided on the ferrule holder tube 35.

In the embodiment, the ferrule holder 31 is formed by one end of the column tube 35 and the column tube 35, and a square frame 312 for inserting a semi-groove shape into the pressing block 33, and an end seat 311 integrally formed at the end of the square frame 312. The square frame 312 is formed by a concave optical fiber groove (not shown), a through-column 35, a square frame 312 and an end hole 311.

Referring to FIG. 1 to FIG. 8 , the assembly process of the optical interconnection device for connecting the two-core optical cable includes the following steps:

(1) respectively inserting the two ferrule assemblies 3 into the corresponding cavity 12 of the base 1;

(2) The outer frame cover 2 is respectively fitted on the first casing 14 of the base 1 and the second casing 15 of the base 1;

(3) After the pivot hole 723 on the link 72 is fitted on the pivot 71 of the slider 73, the other pivot hole 724 of the link 72 is placed on the pivot (not shown) on the tail cover 4. At this time, the slider 73 is snapped into the opening slot 16 on the base 1, and the extending rib on the slider 73 733 is inserted into the chute 37 on the ferrule assembly 3, and finally the pivot hole 44 on the tail cover 73 is put into the pivot 17 on the base 1;

(4) The double core of the optical fiber is passed through the pre-fibration portion 56, separated by an angle, separated by a certain angle, and then placed in the double fiber guiding region, and the double core is respectively pulled down from the pre-fibrating portion 56, and the fiber is inserted into the fiber. The fulcrums I and II are guided to keep the double fibers in a parallel state; the tracks set by the fiberizing guide members 54 of the fiber insertion sliders 5 are parallel and forwardly extended, and the tongue portions 52 of the fiber piercing sliders 5 are arranged along the corresponding slots of the base 1. Moving, after the fiber-piercing slider 5 is loaded into the base 1, the optical fiber is threaded along the shaft hole of the ferrule assembly 3;

(5) fasten the cable 62, close the tail cover 4, and the semicircular external thread 61 of the connecting portion 6 is engaged with the semicircular external thread 47 provided at the corresponding portion of the tail cover 4, and the tail nut 8 is locked to realize the double-core optical cable. .

Embodiments of the invention

Industrial applicability

The above are only the preferred embodiments of the present invention, and all changes and modifications made within the scope of the claims of the present invention should be construed as the scope of the claims.

Sequence table free content

Claims

An optical interconnection device for connecting a double-core optical cable, comprising: an interconnected base, an outer frame sleeve, and a ferrule assembly respectively sleeved in the base and the outer frame sleeve, the base furtherly pivotally forming a closed shell with the base The tail cover of the cavity is characterized in that: the bottom of the closed cavity of the base is provided with a track groove, and the fiber-piercing slider is integrally moved into the cavity of the base closed casing with the sliding of the tongue along the track groove, and the fiber-piercing slider The exposed end has a connecting portion.
The optical interconnection device for connecting a two-core optical cable according to claim 1, wherein said connecting portion is constituted by a semicircular external thread portion and a cable gripping portion projecting along a semicircular external thread portion; said connection The semicircular external thread of the part is fastened with the semicircular external thread provided at the corresponding part of the tail cap, and then fixed by the nut to realize the double-core optical cable.
The optical interconnection device for connecting a two-core optical cable according to claim 1, wherein the fiber-piercing slider is formed by a three-sided molding wall and an open cavity, and the cavity is convex along the central portion of the open end. The tongue portion adapted to the base track groove and the corresponding portion of the surrounding wall of the other end of the tongue opening an opening and a connecting portion protruding along the outside of the opening, a buckled portion of the cavity surrounding the tongue portion, and the buckle position The bottom of the cavity is composed of a symmetrical convex protruding fiber guiding member.
The optical interconnection device for connecting a two-core optical cable according to claim 3, wherein the cavity is located at an open end of the connecting portion and a pre-fibrating portion is protruded; and the pre-fibrating portion is formed by a block body The shaft support wall of the block body and the two sides of the support wall are respectively cut into a slope wall formed by the tongue end as the high end and the joint part as the low end.
The optical interconnection device for connecting a two-core optical cable according to claim 1, wherein the base is a three-sided formed wall and one side is an open cavity, and the bottom of the cavity is provided along a middle of the open end. a perforation provided on each of the end walls of the track groove and the two sides of the track groove, and a first housing and a second housing, the first housing and the first housing extending parallel to the surrounding wall respectively corresponding to the perforations on both sides of the track groove The top wall of the cavity for accommodating the ferrule assembly is opened with the opening of the cavity, the connecting rod mechanism of the opening, and the cavity surrounding the vertical wall of the track groove are symmetrically convex. It is composed of a pivot for pivoting the tail cover pivot hole.
The optical interconnection device for connecting a two-core optical cable according to claim 5, wherein said link mechanism is composed of a pivotally connected link and a slider; said link is formed by an H-like shape a connecting block integrally formed in the middle of the two parallel frames and the two parallel frames, and two open ends of the two parallel frames respectively form a pivot hole for pivoting the sleeve; the slider is composed of a strip plate body and a strip plate body along the central axis One end of the protruding rib and the rib is again protruded along a substantially half of the strip-shaped plate body, and the protruding rib is larger than the rib plate, and the other end of the rib is protruded beyond the boundary of the strip-shaped plate body to be larger than the rib plate. The side wall of the square column tube, the square column tube and the central axis of the strip plate body is provided with a pivotal pivotal connection with the pivot hole of the connecting rod.
The optical interconnection device for splicing a two-core optical cable according to claim 5, wherein the tail cover is adapted to be shaped by a shape of the base cavity and is formed by a three-sided wall and an open cavity. The opening corresponding to the surrounding wall of the other end of the shell cavity defines an opening and a connecting portion protruding along the outside of the opening, a pivot hole corresponding to the pivot portion of the surrounding wall of the base cavity, and a corresponding portion of the bottom of the shell cavity corresponding to the link mechanism The utility model is provided with a fitting hole for inserting the link mechanism, a pillar protruding from both sides of the insertion hole, and a pillar having a pivot hole which is perpendicular to the pillar and is connected to the pivot hole of the link mechanism.
The optical interconnection device for connecting a two-core optical cable according to claim 5, wherein the ferrule assembly comprises a ferrule holder, a ferrule extending from the ferrule holder, and a pressure applied to the ferrule holder. The block and the spring which connects the pressure block and the ferrule seat together, the spring set on the ferrule seat tube tube, and the spring stop position provided on the ferrule seat tube tube.
The optical interconnection device for connecting a double-core optical cable according to claim 8, wherein the ferrule holder is formed by a column tube and a column tube at one end thereof, and a square block having a half-groove shape for the pressure block is embedded. The end portion of the frame end integrally formed, the fiber groove recessed on the plane of the square frame, the through hole tube, the square frame and the shaft hole of the end seat.
An assembly process for an optical interconnect device for connecting a two-core optical cable, characterized in that it comprises the following steps:

(1) respectively inserting two ferrule assemblies into the corresponding cavity of the base;

(2) fitting the outer frame sleeve assembly on the first housing of the base and the second housing of the base;

(3) After the pivot hole on the connecting rod is set on the pivot of the slider, the other pivot hole of the connecting rod is sleeved on the pivot on the tail cover, and the slider is then snapped into the open slot on the base. The extending rib on the slider is snapped into the sliding slot on the ferrule assembly, and finally the pivot hole on the tail cover is inserted into the pivot on the base;

(4) The fiber is stretched in parallel according to the track set by the fiber-distributing guide member of the fiber-optic slider, and the tongue of the fiber-optic slider is moved along the corresponding sliding slot of the base, and the fiber-optic slider is loaded into the base, and the fiber is Passing through the shaft hole of the ferrule assembly;

(5) Close the cable and close the tail cover, so that the semicircular external thread of the connecting part is engaged with the semicircular external thread provided at the corresponding part of the tail cap, and the tail nut is locked to realize the double-core optical cable.