CN202221484U

CN202221484U - Double-core optical cable jointing assembly

Info

Publication number: CN202221484U
Application number: CN2011202973040U
Authority: CN
Inventors: 王毅强; 许永锋; 敖新祥; 朱汉英
Original assignee: Shanghai Hengtong Photoelectric Technology Co Ltd
Current assignee: Shanghai Hengtong Photoelectric Technology Co Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-05-16
Anticipated expiration: 2021-08-16

Abstract

The utility model relates to the technical field of an optical device, and specifically relates to a double-core optical cable jointing assembly. A hollow housing serves as the main body of the jointing assembly. One end of the housing is fixedly provided with an output end, and the other corresponding end of the housing is rotatingly provided with a rotating disk. The housing is rotatingly provided with a protection sleeve in a hollow cavity between the rotating disk and the output end. The protection sleeve is connected with the rotating disk via a mechanical transmission mechanism, and rotates along with the rotating disk in a coaxial manner. The transmission ratio between the rotating disk and the protection sleeve is one to two. The rotating disk is provided with two input holes having a fiber collimator, wherein the two input holes are parallel and symmetrical with the self-rotating shaft of the rotating disk. The output end is provided with two output holes having a fiber collimator. A Dove prism is sleeved inside the protection sleeve. The plane of incidence of the Dove prism faces toward the rotating disk. The advantage of the utility model is that transmission and communication of optical signals are not affected when an optical cable and the jointing assembly rotate.

Description

The twin fiber cable assembly that continues

Technical field

The utility model relates to field of optical device technology, the twin fiber cable that is specifically related between a kind of cable assembly that is used to rotate and the static light device the to implement optical signal transmission communication assembly that continues.

Background technology

In the fiber optic cables communications field; Need be applied to the cable connection technology under many environment, under some particular environment, like the communication of the photosignal between deep quest, the altitude plant communication; Use traditional fiber cable joint will cause twining each other between the optical cable, influence the transmission of light signal.Therefore a kind of cable connection assembly that can rotate will effectively address the above problem.

Summary of the invention

The purpose of the utility model provides between a kind of cable assembly that is used to rotate and the static light device twin fiber cable of the implementing optical signal transmission communication assembly that continues.

The realization of the utility model is accomplished by following technical scheme:

A kind of twin fiber cable assembly that continues; Housing with a hollow is its main body; It is characterized in that: said housing one end is set with output terminal, and its relative other end is provided with a rotating disk turnably, is provided with a protection sleeve in the hollow cavity of said housing turnably; Said protection sleeve links to each other with said rotating disk and with its coaxial rotation through a mechanical transmission mechanism, and the ratio of gear between said rotating disk and protection sleeve is 1:2; In the said rotating disk parallel and be symmetrical in its axis of rotation and be provided with two input holes, be provided with optical fiber collimator in said two input holes, be provided with in the said output terminal two have an optical fiber collimator delivery outlet; Be set with the power and influence mirror in the said protection sleeve one, the said Dove prism plane of incidence is towards said rotating disk.

Said housing one end is provided with the convex body of a hollow, and this convex body inwall is provided with a groove, and said groove is along the end to end closed circular that is of convex body inwall, and said rotating disk outer rim is provided with collar flange, and this flange embeds in the said groove.

Said rotating disk outer rim convexes with tooth to constitute a gear I; Said protection sleeve outer rim convexes with tooth to constitute a gear II; Said mechanical transmission mechanism is one to be parallel to the transmission shaft that said disk shaft is provided with; Said transmission shaft one end is fixed with and gear I meshed gears III, and the other end is fixed with and gear II meshed gears IV.

The utility model has the advantages that: realized when optical cable and the assembly that continues rotate, not influencing the transport communication of light signal, simple in structure and movement parts is few, low cost of manufacture; In light weight, volume is little.

Description of drawings

Fig. 1 is the cut-open view that the twin fiber cable of the utility model rotates the assembly that continues.

Embodiment

Below in conjunction with accompanying drawing 1 and embodiment the utility model is described in further detail:

As shown in Figure 1, always represent respectively: shell 1, flange 2, rotating disk 3, link 4, link slot 5, fiber-optic signal input end 6, static output terminal 7, reducing gear 8, glass prism 9, second gear 10, transmission shaft 11, the 3rd gear 12, first gear 13, internal protection sleeve 14, the 4th gear 15, input hole A, input hole B, delivery outlet A ', delivery outlet B ' with reference to label.

Referring to Fig. 1, the utility model is that a kind of twin fiber cable rotates the assembly that continues, and comprises a shell 1.The fiber-optic signal input end 6 of one side of shell 1 for rotating, the static output terminal 7 of opposite side.

Flange 2 is fixed on the input end of fiber-optic signal, and rotating disk 3 is installed in the flange 2, and the top of rotating disk 3 is provided with link slot 5, and outside rotation fiber-optic signal input equipment is connected with link slot 5, and rotating disk 3 can rotate with input equipment synchronously.The output terminal device of shell 1 has link 4, and its output terminal can be connected with static light signal receiving equipment.The inside of rotating disk 2 is provided with the input hole A and the input hole B of axially parallel; Output terminal has corresponding delivery outlet A ' and delivery outlet B '; In rotating disk 3 inside optical fiber collimator is housed, the device optical fiber collimator is connected optical fiber among delivery outlet A ' and delivery outlet B ', and light signal can be exported.

Internal protection sleeve 14 is positioned at shell 1 inside, places between rotating disk 3 and the link 4, and keeps rotating synchronously with rotating disk 3 and link 4.Sleeve inner is equipped with glass prism 9, and the plane of incidence of glass prism 9 is towards rotating disk 3, and exit facet is towards link 4.Adopt glass prism 9 that fiber-optic signal is reflected, make the wavelength light of output reflect into directional light after minute surface 45 reflection back gets into output signal end

Protection sleeve 14 can rotate through reduction gear in the shell 18 and rotating disk 3 simultaneously.First gear 13 of reducing gear 8 is fixed in rotating disk 3;

First gear

13 and 10 interlocks of second gear, second gear 10 and the 3rd gear 12 are positioned on the same axis, and the 3rd gear 12 is fixed on the transmission shaft 11; The 3rd gear 12 interlocks the 4th gear 15, the four gears 15 are fixed on the protection sleeve 9.When rotating disk 3 rotates, will drive first gear 13 and rotate, first gear 13, second gear 10, the 3rd gear 12, the 4th gear 15 will form interlock simultaneously.

2 bundle fiber-optic signals process input hole A, input hole B from rotating disk 3 gets into produce refraction through prism 9 backs, respectively at the corresponding 2 bundle light signals of exporting of delivery outlet A ', delivery outlet B ' of output terminal.

According to the Dove prism principle, if the angular velocity of the directional light of incident is W1, the angular velocity of prism is W2, and the directional light of the other end is W3 as the angular velocity of A and B, and three's relation is W3=W1=2 * W2.When the angular velocity of W2 is the half of parallel incident light W1, then the angular velocity of light image W3 is zero, and promptly the A of output terminal, B light keep static always.According to above-mentioned principle, the ratio of gear of reducing gear is designed to 1:2, when exterior light was injected A, the B hole of input end 3, how much angular velocity of no matter injecting light was, through after prismatic refraction and the reflection, remains static at the light signal of output terminal.Therefore, the optical fiber that the optical fiber of saying connector on the rotating disk 3 can be corresponding with output terminal always when rotating keeps coupling, and solving the fibre loss that produces when optical fiber rotates influences.

Claims

1. twin fiber cable assembly that continues; Housing with a hollow is its main body; It is characterized in that: said housing one end is set with output terminal, and its relative other end is provided with a rotating disk turnably, is provided with a protection sleeve in the hollow cavity of said housing turnably; Said protection sleeve links to each other with said rotating disk and with its coaxial rotation through a mechanical transmission mechanism, and the ratio of gear between said rotating disk and protection sleeve is 1:2; In the said rotating disk parallel and be symmetrical in its axis of rotation and be provided with two input holes, be provided with optical fiber collimator in said two input holes, be provided with in the said output terminal two have an optical fiber collimator delivery outlet; Be set with the power and influence mirror in the said protection sleeve one, the said Dove prism plane of incidence is towards said rotating disk.

2. a kind of twin fiber cable according to claim 1 assembly that continues; It is characterized in that: said housing one end is provided with the convex body of a hollow; This convex body inwall is provided with a groove; Said groove is along the end to end closed circular that is of convex body inwall, and said rotating disk outer rim is provided with collar flange, and this flange embeds in the said groove.

3. a kind of twin fiber cable according to claim 1 assembly that continues; It is characterized in that: said rotating disk outer rim convexes with tooth to constitute a gear I; Said protection sleeve outer rim convexes with tooth to constitute a gear II; Said mechanical transmission mechanism is one to be parallel to the transmission shaft that said disk shaft is provided with, and said transmission shaft one end is fixed with and gear I meshed gears III, and the other end is fixed with and gear II meshed gears IV.