CN203241566U

CN203241566U - Hot-melt optical fiber connector

Info

Publication number: CN203241566U
Application number: CN 201320126793
Authority: CN
Inventors: 邓辉
Original assignee: SHANGHAI TD TELECOM TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: SHANGHAI TD TELECOM TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2013-03-19
Filing date: 2013-03-19
Publication date: 2013-10-16
Anticipated expiration: 2023-03-19

Abstract

The utility model relates to a hot-melt optical fiber connector which comprises a shell, a fixing hood, embedded optical fibers, a hood fastener, a tail cover and a fixing tail sleeve. The shell is a hollow cube, and a clamping groove is formed on the side of the shell. Fasteners are disposed on both sides of the fixing hood which is arranged in the shell through the fasteners, and a clamping seat is disposed at the front end of the fixing hood. The embedded optical fibers are inserted into a ceramic insertion core, a base is sleeved on the outer side of the ceramic insertion core, and the ceramic insertion core is inserted into the clamping seat. The hood fastener is sleeved at the front end of a fastener of the tail cover. A spring is sleeved at the front end of the fastener of the tail cover, the hood fastener is disposed between the spring and the fastener of the tail cover, and the embedded optical fibers are inserted in the fastener of the tail cover. The tail cover is fixed with the fastener of the tail cover, and an external thread is formed on the outer side of the tail cover. An internal thread is formed in the fixing tail sleeve and matched with the external thread. The hot-melt optical fiber connector is capable of ensuring that loss generated on optical fiber butt joint points is almost zero. Indexes of an optical fiber connector are stable and reliable during a later-stage using process and are not affected by changes of the external environment.

Description

The heat molten type joints of optical fibre

Technical field

The utility model relates to a kind of joints of optical fibre, particularly a kind of heat molten type joints of optical fibre.

Background technology

The heat molten type joints of optical fibre, be commonly called as articulation, be commonly referred to as the joints of optical fibre, be mode with hot melt connect that two optical fiber or optical cable form the continuous light path can reusable passive device, being widely used in optical fiber transmission line, fibre distribution frame and test optical fiber instrument, the instrument, is the maximum optical passive component of present usage quantity.

The joints of optical fibre are generally made at the scene, because environment is more abominable, so require joints of optical fibre Insertion Loss little, are subjected to external influence factor low, and performance index are stable, require to have certain difficulty but existing fibre-optic connector structure will reach these.

The utility model content

The utility model provides a kind of all-environment variation and reliable and stable heat molten type joints of optical fibre of performance index of being fit to.

For solving the problems of the technologies described above, the utility model heat molten type joints of optical fibre comprise: shell, described shell are the cube of hollow, are provided with draw-in groove in the side of described shell; Fixedly headgear is provided with buckle in the both sides of described fixedly headgear, and described fixedly headgear is arranged in the described shell by buckle, is provided with deck at the front end of described fixedly headgear; Pre-buried optical fiber, described pre-buried optical fiber inserts ceramic insertion core, is arranged with pedestal in the outside of described ceramic insertion core, and described ceramic insertion core inserts described deck; The headgear buckle, described headgear buckle is enclosed within the front end of tail-hood buckle, and spring housing is at the front end of described tail-hood buckle, and described headgear buckle is arranged between described spring and the described tail-hood buckle, and described pre-buried optical fiber inserts in the described tail-hood buckle; Tail-hood, described tail-hood and described tail-hood buckle are fixed, and are provided with external thread in the outside of described tail-hood; And fixing tail cover, in described fixedly tail cover, being provided with internal thread, described internal thread mates with described external thread.

Preferably, described deck is two symmetrically arranged stands.Described stand is half-cylindrical.

Preferably, be provided with two the first projections at described headgear buckle, described the first projection is connected with described stand.

Preferably, be provided with the second projection at described tail-hood buckle, be provided with locating slot at described tail-hood, described tail-hood buckle is connected with described tail-hood by described the second projection.

The utility model heat molten type joints of optical fibre have solved the FTTH problem that Fiber to the home connects with user ONU device context afterwards.The utility model is at the inner pre-buried one section optical fiber of connector, and end face carries out attrition process, and middle mode by hot melt with the fused fiber splice that connects field fabrication together.Can guarantee that like this loss that produces at fiber alignment point is almost nil, and joints of optical fibre index is reliable and stable in the later stage use procedure, the impact that not changed by external environment.

In addition in the utility model, the elastic construction that is formed by ceramic insertion core and elastic mechanism, in the optical fiber use procedure, when the front end ceramic insertion core was subjected to hard power extruding, the inner fusion point of the general joints of optical fibre can be stressed, may cause optical fiber disconnected fine, and this elastic construction is connected to the rear end together, bullet after the integral body during external force extruding, guarantee that fusion point does not stress, can avoid disconnected fine risk fully.

Description of drawings

Fig. 1 is the utility model heat molten type joints of optical fibre explosive views.

Description of reference numerals in the utility model heat molten type joints of optical fibre accompanying drawing:

Embodiment

Below in conjunction with accompanying drawing the utility model heat molten type joints of optical fibre are described in further detail.

As shown in Figure 1, the utility model heat molten type joints of optical fibre comprise: shell 1, both sides have draw-in groove 2; Fixedly headgear 3, place in the shell 1, and its front part sides is provided with buckle 4, and buckle 4 is placed in the draw-in groove 2 of shell 1, and its rear portion is provided with the deck with interior cylindrical hole, and socket adopts stand 5 symmetries by two semicolumns to form in the present embodiment.

Ceramic insertion core 7, it comprises ceramic insertion core 7, pedestal 8 and pre-buried optical fiber 6, end face grinds the performance that guarantees end face before dispatching from the factory, reduce whole insertion loss; In installation process, first pre-buried optical fiber 6 is packed in the ceramic insertion core 7, at cover top base 8, use the glue of brute force to be adhesively fixed at afterbody.

Elastic mechanism mainly is comprised of spring 12, headgear buckle 9, tail-hood buckle 11, and headgear buckle 9 inside are columniform hole, are nested into first tail-hood buckle 11 front ends, can freely activity of front and back.Spring 12 also is installed to tail-hood buckle 11 front ends and front end is fixed, make it withstand member.Maintain static when member like this, and stress point is when acting on the member front end and since the elasticity of spring 12 can also before and after movable, reach the purpose of protection.

Ceramic insertion core 7 inserts in the elastic mechanism, and pedestal 8 withstands tail-hood buckle 11 front ends, is that stress point concentrates on.

The first projection 10 designs of two symmetries are arranged on the headgear buckle 9, place in the cylindrical stand 5 of fixing headgear 3, be connected and fixed with the card interface of stand 5 inside.

Tail-hood 14 structures are integrated, at its front end the square locating slot 15 of two symmetries are arranged, and are connected with two square the second projections 13 of design on the tail-hood buckle 11.Afterbody external thread 16 is arranged in its back-end.

Fixedly tail cover 17 is cylinder design, and there is the strip Design of Screw Thread outside, makes things convenient for open-type stressed.Inside is hollow, is designed with inner internal thread, is rotatably connected with the external thread 16 on the tail-hood 14.

The preferred embodiment of below the utility model having been created specifies, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the utility model creative spirit, the modification that these are equal to or replacement all are included in the application's claim limited range.

Claims

1. the heat molten type joints of optical fibre is characterized in that, comprising:

Shell, described shell are the cube of hollow, are provided with draw-in groove in the side of described shell;

Fixedly headgear is provided with buckle in the both sides of described fixedly headgear, and described fixedly headgear is arranged in the described shell by buckle, is provided with deck at the front end of described fixedly headgear;

Pre-buried optical fiber, described pre-buried optical fiber inserts ceramic insertion core, is arranged with pedestal in the outside of described ceramic insertion core, and described ceramic insertion core inserts described deck;

The headgear buckle, described headgear buckle is enclosed within the front end of tail-hood buckle, and spring housing is at the front end of described tail-hood buckle, and described headgear buckle is arranged between described spring and the described tail-hood buckle, and described pre-buried optical fiber inserts in the described tail-hood buckle;

Tail-hood, described tail-hood and described tail-hood buckle are fixed, and are provided with external thread in the outside of described tail-hood; And

Fixedly the tail cover is provided with internal thread in described fixedly tail cover, described internal thread and described external thread coupling.

2. the heat molten type joints of optical fibre according to claim 1 is characterized in that, described deck is two symmetrically arranged stands.

3. the heat molten type joints of optical fibre according to claim 2 is characterized in that, described stand is half-cylindrical.

4. according to claim 2 or the 3 described heat molten type joints of optical fibre, it is characterized in that, be provided with two the first projections at described headgear buckle, described the first projection is connected with described stand.

5. the heat molten type joints of optical fibre according to claim 1 is characterized in that, are provided with the second projection at described tail-hood buckle, are provided with locating slot at described tail-hood, and described tail-hood buckle is connected with described tail-hood by described the second projection.