CN218497195U

CN218497195U - Optical fiber connector

Info

Publication number: CN218497195U
Application number: CN202222538983.7U
Authority: CN
Inventors: 刘江; 刘光兵; 徐凯飞; 魏磊
Original assignee: Suzhou Guangzhuo Communication Technology Co ltd
Current assignee: Suzhou Guangzhuo Communication Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-17
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of optical fiber connectors, in particular to an optical fiber connector, wherein a cavity with a two-stage step structure is arranged in a first holding piece; the second retaining piece is arranged in the cavity on the rear side of the first retaining piece, the front side of the second retaining piece is limited by the second step structure of the first retaining piece, the outer side wall of the second retaining piece is provided with an anti-rotation surface formed by at least one groove, and a gap is reserved between the outer side wall of the second retaining piece and the inner side wall of the first retaining piece; backstop structure sets up in the cavity of first holder rear side, and is connected with first holder tight fit, and backstop structure front side is equipped with the extension, the extension is used for cooperating the face of preventing changeing of second holder, leave the clearance between backstop structure's inside wall and the second holder lateral wall, have certain degree of freedom, the product can adapt to the butt joint better when using the butt joint, avoids the error of part and equipment, because be movable, even the certain weight of butt joint LC rear end burden sanction also can adapt to better.

Description

Optical fiber connector

Technical Field

The utility model relates to an optical fiber connector technical field is an optical fiber splice particularly.

Background

Conventional fiber optic splices are disclosed in chinese patents: pigtail type fiber splice, patent No.: 2017800172014 comprises four components, a ferrule, a sleeve and two retaining pieces, wherein the sleeve is sleeved outside the ferrule, one of the retaining pieces is sleeved outside the sleeve, and the sleeve is packaged by press fit.

The first holder, the second holder and the sleeve of the ferrule are press-fit parts and are fixed, and in actual use, due to the fact that tolerance exists in machining of all parts, poor butt contact can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides an optical fiber connector's design, its aim at solve each part of current optical fiber connector fixed and lead to the butt joint bad contact problem that can appear.

In order to achieve the purpose, the optical fiber connector comprises a first holding piece, wherein a cavity with a two-stage step structure is arranged in the first holding piece; the second retaining piece is arranged in a cavity on the rear side of the first retaining piece, the front side of the second retaining piece is limited by the second step structure of the first retaining piece, the outer side wall of the second retaining piece is provided with an anti-rotation surface formed by at least one groove, and a gap is reserved between the outer side wall of the second retaining piece and the inner side wall of the first retaining piece; backstop structure, backstop structure set up in the cavity of first holder rear side, and be connected with first holder close-fitting, backstop structure front side is equipped with the extension section, the face of preventing changeing that the extension section is used for cooperating the second holder, leave the clearance between the inside wall of backstop structure and the second holder lateral wall.

Preferably, the optical fiber connector comprises a ferrule, a sleeve of the ferrule is tightly matched with the inner wall of the second holder, and the rear end face of the ferrule sleeve is tightly matched with the step structure in the second holder.

Preferably, the optical fiber connector comprises a sleeve, the inner wall of the sleeve is tightly matched with the sleeve of the ferrule, and the rear end face of the sleeve is tightly matched with the front end face of the second retainer.

Preferably, the first step structure of the first holder limits the front side of the sleeve, and a gap is reserved between the inner side wall of the first holder and the outer wall of the sleeve.

Compared with the prior art, the utility model, its advantage lies in: between backstop structure and the second holder, between second holder and the first holder, all leave the clearance between sleeve and the first holder, have certain degree of freedom, the product can adapt to the butt joint better when using the butt joint, avoids the error of part and equipment, because be movable, even the certain weight of butt joint LC rear end burden sanction also can adapt to better.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention

In the figure: 1. the plug core 2, the sleeve 3, the first retainer 4, the second retainer 5 and the stop structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the structure and principle of the present invention will be clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model relates to an optical fiber connector, including first holder, second holder, backstop structure, lock pin and sleeve, second holder and sleeve cover are established outside the sleeve pipe of lock pin, and the sleeve pipe and the second holder inner wall tight fit of lock pin are equipped with a stair structure in the second holder, lock pin sheathed tube rear end face and the stair structure tight fit of second holder. The inner wall of the sleeve is tightly matched with the outer wall of the ferrule sleeve, and meanwhile, the rear end face of the sleeve is tightly matched with the front end face of the second retainer. The first retainer is sleeved outside the sleeve and the second retainer. Be equipped with the cavity of two-stage stair structure in the first holder, the second stair structure of first holder is spacing to second holder front side, the recess of two symmetries is seted up to the lateral wall of second holder, forms and prevents changeing the face, leaves the clearance between second holder lateral wall and the inside wall of first holder. Backstop structure set up in the cavity of first holder rear side, and be connected with first holder close-fitting, backstop structure front side is equipped with the extension section, the extension section is used for cooperating the face of preventing changeing of second holder, leave the clearance between backstop structure's inside wall and the second holder lateral wall. The first step structure of the first holding piece limits the front side of the sleeve, and a gap is reserved between the inner side wall of the first holding piece and the outer wall of the sleeve.

In a preferred embodiment, the second holder is internally provided with glue for protecting the bare optical fiber of the ferrule.

Optical fiber splice's the inner wall of first holder and the telescopic outer wall between leave the clearance, leave the clearance between the outer wall of second holder and the inner wall of first holder, leave the clearance between the inner wall of backstop structure and the outer wall of second holder for overall structure has certain degree of freedom, the adaptation butt joint that the product can be better when using the butt joint, avoid the error of part and equipment, because be movable, even the certain adaptation also can be better to butt joint LC rear end burden sanction weight.

Claims

1. An optical fiber splice comprising

The first holding piece is internally provided with a cavity with a two-stage step structure;

the second retaining piece is arranged in a cavity on the rear side of the first retaining piece, the front side of the second retaining piece is limited by a second step structure of the first retaining piece, the outer side wall of the second retaining piece is provided with an anti-rotation surface formed by at least one groove, and a gap is reserved between the outer side wall of the second retaining piece and the inner side wall of the first retaining piece;

backstop structure, backstop structure set up in the cavity of first holder rear side, and be connected with first holder close-fitting, the backstop structure front side is equipped with the extension section, the extension section is used for cooperating the face of preventing changeing of second holder, leave the clearance between the inside wall of backstop structure and the second holder lateral wall.

2. An optical fiber splice according to claim 1, further comprising a ferrule, the ferrule of the ferrule being in close fitting engagement with the inner wall of the second holder, the rear end face of the ferrule being in close fitting engagement with the step formation in the second holder.

3. An optical fibre splice as claimed in claim 2, further comprising a sleeve, the inner wall of said sleeve being a close fit with the sleeve of the ferrule, the rear face of the sleeve being a close fit with the front face of the second retaining member.

4. A fiber optic splice according to claim 3, wherein: the first step structure of the first holding piece limits the front side of the sleeve, and a gap is reserved between the inner side wall of the first holding piece and the outer wall of the sleeve.