CN202372667U

CN202372667U - Hot melt optical fiber rapid connector

Info

Publication number: CN202372667U
Application number: CN2011205494635U
Authority: CN
Inventors: 白秀彬
Original assignee: 孔凡营
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2012-08-08
Anticipated expiration: 2021-12-23

Abstract

The utility model discloses a hot melt optical fiber rapid connector, which comprises a front shell and a back shell, wherein a ceramic ferrule and a ferrule seat are arranged in a front jacket; the ceramic ferrule is inserted into the ferrule seat; the ferrule seat is inserted into a spring casing; the spring casing is inserted into a back jacket; the back jacket and the front jacket are clamped, so that a connecting jacket is constituted; the connecting jacket is arranged in the front shell and the back shell; the back shell consists of a back shell main body and a rotary gland; the back shell main body and the rotary gland are fastened by using nuts; and a shrinkable tube is arranged in the back shell. Due to the adoption of the connector, hot melt connection of optical fibers can be performed successfully, and a good light guiding effect is achieved after connection; and the hot melt optical fiber rapid connector is easy to manufacture, and has high success ratio.

Description

A kind of heat molten type optical fiber quick connector

Technical field

The present invention relates to a kind of joints of optical fibre, relate in particular to a kind of heat molten type optical fiber quick connector.

Background technology

The joints of optical fibre; Be optical fiber with optical fiber between carry out the device that detachable (activity) is connected; It gets up the accurate butt joint of two end faces of optical fiber; Go so that the luminous energy of launching fiber output can be coupled to receive in the optical fiber to greatest extent, and make because it is got involved optical link and the influence that system causes is reduced to minimum.To a certain extent, the joints of optical fibre have influenced reliability and each item performance of optical transmission system.At present, the joints of optical fibre often adopt the cold joint technology being connected of fibre circuit with outer leading to, and are about to the joints of optical fibre and carry out Mechanical Contact with the optical fiber of reserving and the optical fiber of outside incoming line, so that light can transmit continuously.About between optical fiber, forming the joints of optical fibre of mechanical splice, 200580017008.8 pairs of prior aries of patent of invention have been done certain conclusion and innovation.But; Carry out mechanical splice between the optical fiber; Just fiber end face closely contacts; Its conducting effect to light depends on the degree that fits tightly of fiber end face, because technical requirement is high, construction is difficult; Be difficult for being grasped by the workmen; The insertion loss of back connector of finally causing continuing is higher, and return loss is difficult to up to standard, is assembled into power and also can't guarantees.Aspect with heat fusing merges two optical fiber, makes the conducting of light effective, does not connect machine intimate but splicing point is located at present, and it is firm to guarantee to merge the junction, the heat molten type joints of optical fibre easy to use again.

Summary of the invention

Technical matters to be solved by this invention provides a kind of heat molten type optical fiber quick connector, uses this connector, and the hot melt that can carry out optical fiber smoothly connects, and splicing point is inner at connector, and it is good to connect the back light guide effect, and it is easy to operate to continue, and success ratio is high.

In order to solve the problems of the technologies described above, the present invention takes following technical scheme:

A kind of heat molten type optical fiber quick connector; Comprise fore shell and back cover, it is characterized in that: in preceding sheath, be provided with ceramic insertion core and lock pin seat, ceramic insertion core assigns in the lock pin seat; The lock pin seat assigns in the pogo barrel; Pogo barrel assigns in the sheath of back, and back sheath fastens to form with preceding sheath and is connected sheath, and said connection sheath places in fore shell and the back cover; Said back cover is made up of back cover main body and rotation gland, and the back cover main body is fastening by nut with the rotation gland, in back cover, also is provided with heat-shrink tube.

Said lock pin seat is a tubular, is provided with protruding bayonet socket at pipe one end, and the draw-in groove in this bayonet socket and the preceding sheath fastens, and a ceramic insertion core part assigns in the lock pin seat; Said pogo barrel is a tubular, and an end leaves convexity, and spring housing is in the pipe outside and withstand on the convexity.

In ceramic insertion core, be provided with optical fiber and extend in the outside back cover of ceramic insertion core, the outside optical fiber of ceramic insertion core has sheath.

Ceramic insertion core one end stretches out outside the fore shell and is with dust cap.

The present invention includes heat-shrink tube and the back cover main body that rubber-insulated wire optical fiber is played the role of fastening, rotation gland and nut; After fuse machine connects two fiber-fuses; Putting heat-shrink tube can play a good protection, fastening through nut, can also prevent that optical fiber from moving the infringement that docking point causes.

Description of drawings

Fig. 1 is each several part assembling synoptic diagram of the present invention;

Fig. 2 is a stereographic map of the present invention;

Fig. 3 is a front view of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the present invention is further specified:

Ceramic insertion core 4 is the cylindrical ferrule of ceramic; Leaving pore on the central axis can supply optical fiber to pass through; After penetrating optical fiber; End at ceramic insertion core 4 carefully grinds optical fiber, makes the end face of fiber end face and ceramic insertion core 4 be formed with the end face of trickle radian, thereby this end face contacts with the corresponding end face of the ceramic insertion core of receiving optical signals equipment and makes light carry out conducting at last.The optical fiber of ceramic insertion core 4 other ends passes, and the outer fiber that passes is surrounded by the 0.9mm sheath.Ceramic insertion core 4 parts are inserted in the lock pin seat 5, and lock pin seat 5 is a tubular, can supply ceramic insertion core 4 to insert; One end of lock pin seat 5 is provided with protruding bayonet socket 12, and lock pin seat 5 inserts in the pogo barrel 6, and pogo barrel 6 is a tubular; One end is provided with circular convexity 13; Spring housing is outside pipe, and spring one end withstands convexity 13, and pogo barrel 6 inserts in the sheaths 7 of back.Ceramic insertion core 4, lock pin seat 5 insert in the preceding sheath 3; One end of ceramic insertion core 4 stretches out preceding sheath 3; Lock pin seat 5 protruding bayonet sockets 12 are stuck on the preceding sheath 3 inner corresponding draw-in grooves, and to prevent 5 rotations of lock pin seat, protruding 13 also are inserted in the circular depressed corresponding on the preceding sheath; Back sheath 7 inserts in the preceding sheath 3 then, in the groove 14 before fin 15 corresponding insertions the on the back sheath 7 on the sheath 3.Before sheath 3 constituted with back sheath 7 and be connected sheath.To connect sheath and put into fore shell 1 and back cover main body 9, back cover main body 9 is inserted in the fore shell 1, and the clamp 16 on the fore shell 1 snaps in the draw-in groove on the back cover main body 9.Rotation gland 10 is installed on the back cover main body 9, rotates gland 10 with back cover main body 9 and after closing, the nut 11 of screwing on, back cover main body 9 is formed back cover with rotation gland 10, and the inside is placed with heat-shrink tube 8.End at ceramic insertion core 4; Also be covered with dust cap 2, in case

dust pollution.

During use, need the joints of optical fibre be connected with outer logical optical cable, and then the joints of optical fibre are linked to each other with the equipment of receiving optical signals.During operation, back out on the logical outside optical cable of nut 11 and cover, heat-shrink tube 8 is also overlapped on the logical outside optical cable; The aforementioned optical fiber that has sheath that passes ceramic insertion core 4 extends in the back cover always, and need peel off the crust of certain-length this moment, and the crust that will lead to the certain-length of optical cable is simultaneously outward peelled off; Then two exposed optical fiber are melted on fuse machine and merge connection, after connecting heat-shrink tube 8 is enclosed within on the weld, give heat-shrink tube 8 heating again; Heat-shrink tube 8 is heated and promptly tightens, and tightly is enclosed within on the weld, and straight shape steel wire is arranged in the heat-shrink tube 8; Being heated can not produce camber after tightening, thereby plays a very good protection to merging the junction.At last, will rotate gland 10 again and close up, compress outer logical optical cable, and expose one section 0.25mm optical cable this moment and produce little curved with back cover main body 9.And then nut 11 screwed on, fastening.

Utilize this device, realized that the quick hot melt of optical fiber connects, has connected afterwards the junction and firmly be difficult for disrumpent feelingsly, the conduction of light is good, and each item technical indicator all is superior to the cold joint technology.

Claims

1. heat molten type optical fiber quick connector; Comprise fore shell and back cover, it is characterized in that: in preceding sheath, be provided with ceramic insertion core and lock pin seat, ceramic insertion core assigns in the lock pin seat; The lock pin seat assigns in the pogo barrel; Pogo barrel assigns in the sheath of back, and back sheath fastens to form with preceding sheath and is connected sheath, and said connection sheath places in fore shell and the back cover; Said back cover is made up of back cover main body and rotation gland, and the back cover main body is fastening by nut with the rotation gland, in back cover, also is provided with heat-shrink tube.

2. heat molten type optical fiber quick connector as claimed in claim 1 is characterized in that: said lock pin seat is a tubular, is provided with protruding bayonet socket at pipe one end, and the draw-in groove in this bayonet socket and the preceding sheath fastens, and a ceramic insertion core part assigns in the lock pin seat; Said pogo barrel is a tubular, and an end leaves convexity, and spring housing is in the pipe outside and withstand on the convexity.

3. like claim 1 or 2 described heat molten type optical fiber quick connectors, it is characterized in that: in ceramic insertion core, be provided with optical fiber and extend in the outside back cover of ceramic insertion core, the outside optical fiber of ceramic insertion core is surrounded by sheath.

4. heat molten type optical fiber quick connector as claimed in claim 3 is characterized in that: ceramic insertion core one end stretches out outside the fore shell and is with dust cap.