CN2582015Y

CN2582015Y - Optical fibre coupling

Info

Publication number: CN2582015Y
Application number: CN 02286283
Authority: CN
Inventors: 范晨静
Original assignee: COMMUNICATION APPLIANCES FACTORY JIANSU PROV
Current assignee: COMMUNICATION APPLIANCES FACTORY JIANSU PROV
Priority date: 2002-11-27
Filing date: 2002-11-27
Publication date: 2003-10-22
Anticipated expiration: 2012-11-27

Abstract

The utility model relates to an optical fiber connector, which comprises a coupling head, a protective sleeve and an optical fiber, wherein, the coupling head is composed of a central shaft, a shaft sleeve, a spring, a shaft cap and a porcelain core rod, a nylon screw rod is arranged in one segment of the inner end of the central shaft; the nylon screw rod is composed of two semicircular step pipes; the inner walls and the outer walls of outer long and thin pipes of the two semicircular step pipes are respectively provided with inner screw threads and outer screw threads; adjacent sides of inner short and thick pipes of the two semicircular step pipes are connected in a hinged mode; end faces of pipe walls of other sides of the two semicircular step pipes are respectively provided with a connecting pin and a positioning hole which are matched with each other; the inner wall of the inner end of the central shaft is provided with inner screw threads. A silica gel guiding pipe is arranged in an inner cavity; the outer long and thin pipes of the two semicircular step pipes of the nylon screw rod are combined to form the inner cavity. The outer diameter of the silica gel guiding pipe is little larger than the inner diameter of the inner cavity which is formed in the mode that the outer long and thin pipes of the two semicircular step pipes of the nylon screw rod are combined. The protective sleeve is a rubber tapered pipe. The internal diameter of a hole on the tail end is inosculated with the outer diameter of the inner end of the central shaft. The optical fiber penetrates in the protective sleeve from a bottling end of the head end of the protective sleeve and passes through the silica gel guiding pipe in the nylon screw rod to tightly prop on the inner end head of the porcelain core rod.

Description

The joints of optical fibre

Technical field

The utility model relates to a kind of joints of optical fibre that optical fiber cable connects that are used for.

Background technology

The mounting means of traditional fiber connector is the bonding agent that needs with special-purpose all the time, and the porcelain core adhesion with in optical fiber and the connector is heated curing then, puts into professional muller after the curing again and grinds, and detects subsequently.If detect defective, just connect the head cut off, can not re-use.Use at the construction field (site) also as need and need carry a large amount of utility appliance, so this processing mode is unfavorable for the work that continues of open-air optical fiber cable, also can cause waste of material, cost strengthens.

Summary of the invention

The purpose of this utility model is exactly in order to address the above problem, and a kind of simple installation, easy is provided, and connects reliably, and insertion and reflection loss are low, and transmission performance is stable, the joints of optical fibre that cost is low.

Technical solution of the present utility model:

A kind of joints of optical fibre; it includes connector; protective sleeve and optical fiber; wherein connector is by central shaft; axle sleeve; spring; axle cap and porcelain core bar construction; the outer end of central shaft is connected by axle cap and porcelain core rod; the outer end of porcelain core rod is used for linking to each other with the adapter of equipment; the outer wall of central shaft outer end flexibly connects by spring and axle sleeve; both sides have the bayonet socket that matches with device adapter on the outer end wall of axle sleeve; it is characterized in that in the inner one section pipe of central shaft, being provided with the nylon screw rod; the nylon screw rod is made of two semicircle step pipes; in outer segment length's tubule of two halves round platform rank pipe; in outer wall is respectively equipped with; external thread; an adjacent side of their the short and thick pipe of inner segment is articulated and connected; be respectively equipped with connecting pin and the pilot hole that matches on the tube wall end face of short and thick another side of pipe of inner segment; so that lumping together, they constitute an integrated step formula nylon screw rod; correspondingly; the inner inwall of central shaft is provided with the nylon screw rod two halves round platform rank outer segment length's tubule of pipe and closes the internal thread that the whole external thread in back matches; inner chamber after the nylon screw rod two halves round platform rank outer segment length's tubule of pipe closes is provided with silica gel catheter; the external diameter of this silica gel catheter is slightly larger than the internal diameter after the nylon screw rod two halves round platform rank outer segment length's tubule of pipe closes; internal thread after being closed by them is closely pushed down; protective sleeve is a rubber tapered tube; the inner external diameter of the internal diameter in its tail end hole and central shaft matches; they cooperate together; the integrated step headgear that manage after the short and thick pipe of inner segment closes on nylon screw rod two halves round platform rank is lived; optical fiber penetrates from the head end closing in end of protective sleeve, and the silica gel catheter that passes again in the nylon screw rod closely contacts on the inner termination of porcelain core rod.

The joints of optical fibre of the present utility model adopt thread lock mechanism and hand lapping mode, and can use repeatedly.Field terminating need not heating easily, need not epoxy resin and crimping tool, and the enhancing sleeve pipe that utilizes silicones to make makes connection simpler.The utility model has solved the worry that will carry relevant devices such as glue and grinding machine at the construction field (site) owing to adopted the unique technique structure, and simple installation easily, connects reliably, and insertion and reflection loss are low, and transmission performance is stable.The utility model is to exempt from a glue and hand lapping mode owing to what adopt, the working-yard of continuing of optical fiber cable in the open air then, the connection between the light end equipment, arbitrarily customized lengths, make laying work easier, reduced the problems such as spillage of material in fiber cable laying and the relocation equipment work progress.The utility model is fit to be applied to the working-yard of continuing of optical fiber cable, because of the repairing of optical cable that mishap caused, and aspect such as army's emergency communication join frame district and workspace.Solved at present on the working-yard of continuing of optical fiber cable in the open air and the problem of the assembly fixture mounted connector in the machine room.And because the utility model adopts is the screw-threaded coupling structure, so utility appliance such as glue special and curing oven need not be carried in the working-yard, only need simply to install and grind, can have joints of optical fibre that assemble in order to stand-by screw-threaded coupling.

Description of drawings

Fig. 1 is a decomposition texture synoptic diagram of the present utility model.

Embodiment

As Fig. 1; the joints of optical fibre of the present utility model include connector 1; protective sleeve 2 and optical fiber 3; wherein connector 1 is by central shaft 4; axle sleeve 5; spring; axle cap and porcelain core rod 6 constitute; the outer end of central shaft 4 is connected by axle cap and porcelain core rod 6; the outer end of porcelain core rod 6 is used for linking to each other with the adapter of equipment; the outer wall of central shaft 4 outer ends flexibly connects by spring and axle sleeve 5; both sides have the bayonet socket 7 that matches with device adapter on the outer end wall of axle sleeve 5; characteristics of the present utility model are; in central shaft 4 inner one section pipe, be provided with nylon screw rod 8; nylon screw rod 8 is made of two semicircle step pipes 9; in outer segment length's tubule of two halves round platform rank pipe 9; in outer wall is respectively equipped with; external thread 10; 11; an adjacent side of their the short and thick pipe of inner segment is articulated and connected; be respectively equipped with the connecting pin 12 and the pilot hole 13 that match on the tube wall end face of short and thick another side of pipe of inner segment; so that lumping together, they constitute an integrated step formula nylon screw rod 8; correspondingly; central shaft 4 inner inwalls are provided with nylon screw rod 8 two halves round platform rank pipe 9 outer segment length's tubules and close the internal thread 14 that the whole external thread 11 in back matches; inner chamber after nylon screw rod 8 two halves round platform rank pipe 9 outer segment length's tubules close is provided with silica gel catheter 15; the external diameter of this silica gel catheter 15 is slightly larger than the internal diameter after nylon screw rod 8 two halves round platform rank pipe 9 outer segment length's tubules close; internal thread 10 after being closed by them is closely pushed down; protective sleeve 2 is a rubber tapered tube; the internal diameter in its tail end hole and central shaft 4 inner external diameters match; they cooperate together; the integrated step headgear that manage after the short and thick pipe of 9 inner segments closes on nylon screw rod 8 two halves round platform rank is lived; optical fiber 3 penetrates from the head end closing in end of protective sleeve 2, and the silica gel catheters 15 that pass again in the nylon screw rod 8 closely contact on the inner termination of porcelain core rod 6.

In the utility model, the outer wall that the integrated step head after the short and thick pipe of 9 inner segments closes is managed on nylon screw rod 8 two halves round platform rank is preferably the hexagonal square toes, so that screw with tool operation.

Because the utility model is the central shaft 4 that penetrates connector 1 by the whole external thread 11 of nylon screw rod 8, so its whole internal thread 10 is just closely pushed down silica gel catheter 15, silica gel catheter 15 pressurizeds shrink the back just closely firmly to be fixed the optical fiber 3 that penetrates, guaranteed that optical fiber 3 is connected with the reliable contact of porcelain core rod 6, thereby replaced the adhering process of traditional complexity.

Claims

1; a kind of joints of optical fibre; it includes connector; protective sleeve and optical fiber; wherein connector is by central shaft; axle sleeve; spring; axle cap and porcelain core bar construction; the outer end of central shaft is connected by axle cap and porcelain core rod; the outer end of porcelain core rod is used for linking to each other with the adapter of equipment; the outer wall of central shaft outer end flexibly connects by spring and axle sleeve; both sides have the bayonet socket that matches with device adapter on the outer end wall of axle sleeve; it is characterized in that in the inner one section pipe of central shaft, being provided with the nylon screw rod; the nylon screw rod is made of two semicircle step pipes; in outer segment length's tubule of two halves round platform rank pipe; in outer wall is respectively equipped with; external thread; an adjacent side of their the short and thick pipe of inner segment is articulated and connected; be respectively equipped with connecting pin and the pilot hole that matches on the tube wall end face of short and thick another side of pipe of inner segment; so that lumping together, they constitute an integrated step formula nylon screw rod; correspondingly; the inner inwall of central shaft is provided with the nylon screw rod two halves round platform rank outer segment length's tubule of pipe and closes the internal thread that the whole external thread in back matches; inner chamber after the nylon screw rod two halves round platform rank outer segment length's tubule of pipe closes is provided with silica gel catheter; the external diameter of this silica gel catheter is slightly larger than the internal diameter after the nylon screw rod two halves round platform rank outer segment length's tubule of pipe closes; internal thread after being closed by them is closely pushed down; protective sleeve is a rubber tapered tube; the inner external diameter of the internal diameter in its tail end hole and central shaft matches; they cooperate together; the integrated step headgear that manage after the short and thick pipe of inner segment closes on nylon screw rod two halves round platform rank is lived; optical fiber penetrates from the head end closing in end of protective sleeve, and the silica gel catheter that passes again in the nylon screw rod closely contacts on the inner termination of porcelain core rod.

2,, it is characterized in that the outer wall of the integrated step head after the described nylon screw rod two halves round platform rank short and thick pipe of pipe inner segment closes is the hexagonal square toes by the described joints of optical fibre of claim 1.