CN201368928Y

CN201368928Y - Rubber-insulated wire optical fiber connector

Info

Publication number: CN201368928Y
Application number: CNU2009200683506U
Authority: CN
Inventors: 张雯蕾
Original assignee: Jianbao Optical Fibre Technology Co Ltd Shanghai
Current assignee: Jianbao Optical Fibre Technology Co Ltd Shanghai
Priority date: 2009-03-03
Filing date: 2009-03-03
Publication date: 2009-12-23
Anticipated expiration: 2019-03-03

Abstract

The utility model discloses a rubber-insulated wire optical fiber connector, which comprises an outer body, an inner body, a sleeve headstock, a ceramic ferrule, a metal tail handle, a spring, a connecting piece and a rubber-insulated wire, wherein the outer body is sleeved on the inner body; the inner body is sleeved on the sleeve headstock; the sleeve headstock is sleeved outside the metal tail handle; the metal tail handle and the ceramic ferrule penetrate the central through hole of the inner body; the front end of the metal tail handle is connected with the rear end of the ceramic ferrule; an annular step is arranged at the front end of the metal tail handle; the spring is sleeved on the metal tail handle, and is arranged between the annular step and the front end of the sleeve headstock; the rear end of the metal tail handle protrudes from the sleeve headstock; the front end of the connecting piece is sleeved at the rear end of the metal tail handle; the rear end of the connecting piece is sleeved on the rubber-insulated wire, and rivets tightly the rubber-insulated wire; and the sheath of the rubber-insulated wire covers tightly the optical fiber of the rubber-insulated wire. The utility model is applicable to the optical fiber sheath and the optical fiber of rubber-insulated wire, and can ensure the rubber-insulated wire and the ceramic ferrule and the metal tail handle to move synchronously and axially, thereby avoiding fiber cut effectively.

Description

The rubber-insulated wire joints of optical fibre

Technical field

The utility model relates to the joints of optical fibre.

Background technology

Fig. 5 A shows the existing SC type joints of optical fibre on the market, and its employed optical cable 110 is that external diameter is the single fiber cable of 2mm or 3mm mostly, and this single fiber cable comprises optical fiber 1101, strengthens spinning synthetic fibre 1102 and crust 1103, shown in Fig. 5 B.The crust 1103 and the internal optical fiber 1101 of this optical cable is the pine cover, optical fiber 1101 is bonded and fixed at by glue in the central through hole of contact pin body (be assembled into one form by ceramic insertion core 101 and metal caudal peduncle 102) of the SC type joints of optical fibre, and crust 1103 and reinforcement are spun synthetic fibre 1102 and be connected on the cover headstock 106 by riveting web member 107.Outer body 105 is socketed on the interior body 103, interior body 103 is socketed on the headstock 106, the inwall of cover headstock 106 is provided with ring-shaped step 1061, spring 104 is set on the metal caudal peduncle 102, and is arranged between the ring-shaped step 1021 and the ring-shaped step 1061 on the cover headstock inwall of metal caudal peduncle front end.On the ring-shaped step 1021 of metal caudal peduncle, also offer several trough, on the inwall of interior body 103, be provided with and the corresponding projection of above-mentioned groove, these projections are embedded in the groove on the ring-shaped step 1021, and metal caudal peduncle 102 and ceramic insertion core 101 can not rotated.These SC type joints of optical fibre are when the axial displacement of contact pin body compression spring 104 generations in cover headstock 106, and the optical fiber that links to each other with the contact pin body can produce axial displacement simultaneously.Owing to be that pine is overlapped between the crust of optical cable and the optical fiber, this axial displacement generally can not make optical fiber crooked in the inner generation of the joints of optical fibre, thereby can not influence the performance of the joints of optical fibre.

Along with Fibre Optical Communication Technology constantly develops, the customer demand variation, a kind of new single fiber cable specification has appearred on market at present, its principal feature is that optical cable crust and optical fiber are hard-pressed bales, be optical fiber and crust close-coupled, very close to each other between optical fiber and the crust, intracutaneous is stiff outside, and the optical cable cross section is rectangle, and this optical cable is called rubber-insulated wire.

Rubber-insulated wire is used the joints of optical fibre if adopt the connected mode of the existing SC type joints of optical fibre, after crust is fixed, in the use of the joints of optical fibre, the axial displacement meeting of internal optical fiber causes producing bending even fractureing in that the joints of optical fibre are inner, thereby causes the loss of light signal even open circuit.Therefore, must be improved, could be solved the connectivity problem of covered wire cable the structure of the existing SC type joints of optical fibre.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of rubber-insulated wire joints of optical fibre, these rubber-insulated wire joints of optical fibre are applicable to the covered wire cable of optical cable crust and optical fiber hard-pressed bale, it can make covered wire cable and ceramic insertion core and the synchronous axially-movable of metal caudal peduncle, makes the connection of optical fiber more reliable and more stable.

The technical scheme that the utility model adopted is: a kind of rubber-insulated wire joints of optical fibre comprise outer body, interior body, cover headstock, ceramic insertion core, metal caudal peduncle, spring, web member and rubber-insulated wire; Outer body, interior body, cover headstock and web member are equipped with central through hole; On the body, interior body was socketed on the headstock in outer body was socketed in, and pullover cover for seat is located at outside the metal caudal peduncle; In the central through hole of body, the front end of metal caudal peduncle linked to each other with the rear end of ceramic insertion core in metal caudal peduncle and ceramic insertion core were located in, and the front end of ceramic insertion core stretches out in outside the outer body; Front end at the metal caudal peduncle is provided with ring-shaped step, and spring housing is located on the metal caudal peduncle, and is arranged between the front end of ring-shaped step and cover headstock, is characterized in, the rear end of metal caudal peduncle stretches out in outside the cover headstock; The front end sleeve of web member is connected on the rear end of metal caudal peduncle, and the rear end of this web member is set on the rubber-insulated wire, and the rubber-insulated wire of riveting tightly; The optical fiber of this rubber-insulated wire of crust hard-pressed bale of rubber-insulated wire.

After adopting technique scheme, the front end riveting of web member of the present utility model is on the metal caudal peduncle, and rivet tightly on rubber-insulated wire in the rear end, thereby ceramic insertion core, metal caudal peduncle and rubber-insulated wire are connected as a single entity; When ceramic insertion core and metal caudal peduncle retreated vertically, rubber-insulated wire was also drawn back thereupon, so optical fiber can be to the cross-sectional direction bending, thereby can avoid the disconnected fibre that causes thus effectively.

Description of drawings

Fig. 1 is the cross-sectional view of the rubber-insulated wire joints of optical fibre of the present utility model;

Fig. 2 is the perspective exploded view of the rubber-insulated wire joints of optical fibre of the present utility model;

Fig. 3 is a partial schematic diagram of the present utility model;

Fig. 4 A is the structural representation of web member of the present utility model;

Fig. 4 B is the side view of Fig. 4 A;

Fig. 5 A is the cross-sectional view of the existing SC type joints of optical fibre;

Fig. 5 B is the A-A line diagrammatic cross-section of Fig. 5 A.

Embodiment

Below in conjunction with accompanying drawing of the present utility model making further specified.

With reference to figure 1 and Fig. 3, the rubber-insulated wire joints of optical fibre of the present utility model comprise outer body 1, interior body 2, cover headstock 3, ceramic insertion core 4, metal caudal peduncle 5, spring 6, web member 7, rubber-insulated wire 8 and tail sheath 9.Outer body 1, interior body 2, cover headstock 3, ceramic insertion core 4, metal caudal peduncle 5, web member 7 and tail sheath 9 are equipped with central through hole.The peripheral outer wall of interior body 2 is provided with lug 21 and groove 22, the peripheral outer wall of outer body 1 is provided with and lug 21 corresponding grooves 11, the peripheral outer wall of cover headstock 3 is provided with and groove 22 corresponding lugs 31, by lug 21 is stretched in the groove 11, lug 31 with stretch in the groove 22, on the body 2, interior body 2 was socketed on the headstock 3 in outer body 1 was socketed in.Cover headstock 3 is set in outside the metal caudal peduncle 5, and in the central through hole of body 2, the front end of metal caudal peduncle 5 linked to each other with the rear end of ceramic insertion core 4 in metal caudal peduncle 5 was located in ceramic insertion core 4, and the front end of ceramic insertion core 4 stretches out in outside the outer body 1.Front end at metal caudal peduncle 5 is provided with ring-shaped step 51, and spring 6 is set on the metal caudal peduncle 5, and is arranged between the front end face of ring-shaped step 51 and cover headstock 3, and the front end face of cover headstock 3 can play backstop action to spring 6.Also offer one or more grooves 510 on ring-shaped step 51, be provided with on the inwall of interior body 2 and groove 510 corresponding projections, these projections are embedded in the groove 510 of ring-shaped step 51, and metal caudal peduncle 5 and ceramic insertion core 4 can not rotated.The rear end of metal caudal peduncle 5 stretches out in outside the cover headstock 3, and the front end sleeve of web member 7 is connected on the rear end of metal caudal peduncle 5, and the rear end of web member 7 is set on the rubber-insulated wire 8, and the rubber-insulated wire 8 of riveting tightly.Tail sheath 9 is set on web member 7 and the rubber-insulated wire 8.The crust tightly packaged fiber 81 of rubber-insulated wire 8, optical fiber 81 run through the central through hole of metal caudal peduncle 5 and ceramic insertion core 4.

Fig. 4 A and Fig. 4 B show the structural representation of a kind of embodiment of web member of the present utility model.The central through hole of web member 7 comprises forward part 71 and rear section 72, and the shape of cross section of forward part 71 is circular, so that be complementary with the profile of metal caudal peduncle, and the shape of cross section of rear section 72 be an ellipse, is complementary with the profile with rubber-insulated wire 8.The front-end and back-end of this web member 7 normally are socketed in respectively on metal caudal peduncle 5 and the rubber-insulated wire 8 by riveting.

When ceramic insertion core 4 is stressed when retreating vertically, because metal caudal peduncle 5 is connected as a single entity with ceramic insertion core 4, therefore also can draw back, simultaneously compression spring 6 thereupon.Two ends owing to web member 7 link to each other with rubber-insulated wire 8 with metal caudal peduncle 5 respectively again, so rubber-insulated wire 8 can be along with metal caudal peduncle 5 motion backward vertically.Therefore optical fiber 81 can be to the cross-sectional direction bending, thereby can avoid the disconnected fibre that causes thus effectively.

Claims

1. rubber-insulated wire joints of optical fibre comprise outer body, interior body, cover headstock, ceramic insertion core, metal caudal peduncle, spring, web member and rubber-insulated wire; Described outer body, described interior body, described cover headstock and described web member are equipped with central through hole; On the body, interior body was socketed on the headstock in outer body was socketed in, and pullover cover for seat is located at outside the metal caudal peduncle; In the central through hole of body, the front end of metal caudal peduncle linked to each other with the rear end of ceramic insertion core in metal caudal peduncle and ceramic insertion core were located in, and the front end of ceramic insertion core stretches out in outside the outer body; Front end at the metal caudal peduncle is provided with ring-shaped step, and described spring housing is located on the metal caudal peduncle, and is arranged between the front end of described ring-shaped step and cover headstock, it is characterized in that the rear end of described metal caudal peduncle stretches out in outside the described cover headstock; The front end sleeve of described web member is connected on the rear end of metal caudal peduncle, and the rear end of this web member is set on the described rubber-insulated wire, and the rubber-insulated wire of riveting tightly; The optical fiber of this rubber-insulated wire of crust hard-pressed bale of described rubber-insulated wire.

2. the rubber-insulated wire joints of optical fibre as claimed in claim 1 is characterized in that, the front end riveting of described web member is on described metal caudal peduncle.

The 3 rubber-insulated wire joints of optical fibre as claimed in claim 1 is characterized in that the central through hole of described web member comprises forward part and rear section, and the shape of cross section of described forward part is circular, and the shape of cross section of described rear section is oval.

4. the rubber-insulated wire joints of optical fibre as claimed in claim 1 is characterized in that, also comprise a tail sheath, and described tail sheath is set on described web member and the rubber-insulated wire.