CN-117348171-B - Optical fiber connector and optical fiber connection method

CN117348171BCN 117348171 BCN117348171 BCN 117348171BCN-117348171-B

Abstract

The invention discloses an optical fiber connector and an optical fiber connection method, wherein the optical fiber connector comprises a core inserting assembly, a connector main body and a front sleeve, the core inserting assembly comprises a lock sleeve and an optical fiber butt joint assembly, the lock sleeve is sleeved on the periphery of the optical fiber butt joint assembly and is in rotary connection with the optical fiber butt joint assembly, the connector main body is provided with an inner cavity and a first window communicated with the inner cavity, the outer surface of the lock sleeve is provided with a first rotary push block, the first window is used for exposing the first rotary push block and providing a movable space for the first rotary push block, the front sleeve is sleeved at the front end of the connector main body and can move relative to the connector main body in the front-back direction, a first opening opposite to the first window is formed in the front sleeve, when the lock sleeve rotates to an unlocking position, the first rotary push block extends into the first opening, the front sleeve is in limit abutting connection with the first rotary push block in the stroke, and when the lock sleeve rotates to a locking position, the first rotary push block is positioned in the front sleeve, and the front sleeve is staggered with the first rotary push block in the stroke.

Inventors

QIU JIHUA
LIU YAN

Assignees

苏州三环科技有限公司
南充三环电子有限公司
潮州三环（集团）股份有限公司

Dates

Publication Date: 20260508
Application Date: 20231024

Claims (10)

1. The optical fiber connector is characterized by comprising an inserting core assembly, a connector main body and a front sleeve, wherein the inserting core assembly comprises a lock sleeve and an optical fiber butt joint assembly used for connecting an embedded optical fiber and an optical fiber to be butt-jointed, the lock sleeve is sleeved on the periphery of the optical fiber butt joint assembly and is rotationally connected with the optical fiber butt joint assembly, the connector main body is provided with an inner cavity and a first window communicated with the inner cavity, the outer surface of the lock sleeve is provided with a first rotating push block, the inserting core assembly is arranged in the inner cavity, the first window is used for exposing the first rotating push block and providing a movable space for the first rotating push block, the front sleeve is sleeved on the front end of the connector main body and can move relative to the connector main body along the front-rear direction, the front sleeve is provided with a first opening which is opposite to the first window, when the lock sleeve rotates to an unlocking position, the first rotating push block extends into the first opening, the front sleeve can be staggered with the first rotating push block in the first rotating push block when the front sleeve rotates to the first rotating push block, and the front sleeve is arranged in the front sleeve in the rotating position.
2. The optical fiber connector according to claim 1, wherein a second rotating push block is arranged on the outer surface of the lock sleeve, a second window communicated with the inner cavity is arranged on the connector body, the second window is used for exposing the second rotating push block and providing a movable space for the second rotating push block, and a second opening opposite to the second window is arranged on the front sleeve.
3. The fiber optic connector of claim 2, wherein the first opening has an area that is smaller than an area of the second opening.
4. The optical fiber connector according to claim 2, wherein the rear end of the connector body is provided with an optical cable clamping portion, and the rear end of the connector body is sleeved with a rear sleeve.
5. The optical fiber connector according to claim 2, wherein the connector body comprises a first housing at a front end and a second housing at a rear end, the ferrule assembly is disposed in the first housing, a spring is disposed between the ferrule assembly and the second housing, a docking portion is disposed at a front end of the second housing, the spring is disposed in the docking portion, a limit portion is disposed at a rear end of the optical fiber docking assembly, and the spring is sleeved at a rear end of the optical fiber docking assembly and abuts against the limit portion.
6. The optical fiber connector according to claim 5, wherein the first housing and the second housing are engaged with each other, a first engaging groove is provided at a rear end of the first housing, and a first engaging block engaged with the first engaging groove is provided at an outer wall of the mating portion.
7. The optical fiber connector according to claim 6, wherein the second housing is provided with a guiding groove for extending into an optical fiber to be spliced, the inner diameter of the guiding groove gradually decreases from the rear end to the front end, the guiding groove is an open guiding groove, the guiding groove is communicated with a splicing groove on the optical fiber splicing assembly, and the second housing is provided with a rear sleeve for closing the guiding groove.
8. The optical fiber connector according to claim 7, wherein the optical fiber butt-joint assembly comprises an optical fiber butt-joint platform and a pressing plate, a butt-joint groove for butt-jointing optical fibers is formed on the optical fiber butt-joint platform, the pressing plate is matched with the optical fiber butt-joint platform in a mode of sealing the butt-joint groove, a main convex part is formed on the inner side of the lock sleeve, a plane section and a convex curved surface section are formed on one side, away from the optical fiber butt-joint platform, of the pressing plate, when the lock sleeve is rotated to an unlocking position, the main convex part corresponds to the plane section, the lock sleeve is in a non-interference fit state with the optical fiber butt-joint assembly, the pressing plate is in a clearance fit with the optical fiber butt-joint platform, when the lock sleeve is rotated to a locking position, the main convex part corresponds to the curved surface section, the lock sleeve is in an interference fit state with the optical fiber butt-joint assembly, and the pressing plate is in a tight fit with the optical fiber butt-joint platform.
9. The optical fiber connector according to claim 8, wherein an auxiliary protrusion is further formed on the inner side of the lock sleeve, an auxiliary plane section and an outer protruding auxiliary curved surface section are formed on the outer side surface of the optical fiber butt joint platform, when the lock sleeve is rotated to the unlocking position, the auxiliary protrusion corresponds to the auxiliary plane section, the lock sleeve and the optical fiber butt joint assembly are in a non-interference fit state, the pressing plate and the optical fiber butt joint platform are in clearance fit, when the lock sleeve is rotated to the locking position, the auxiliary protrusion corresponds to the auxiliary curved surface section, the lock sleeve and the optical fiber butt joint assembly are in an interference fit state, and the pressing plate and the optical fiber butt joint platform are in tight fit.
10. An optical fiber connection method using the optical fiber connector according to any one of claims 2 to 9, characterized by comprising the steps of: s1, pushing the second rotary push block to enable the lock sleeve to rotate to an unlocking position, enabling the optical fibers to be docked to extend into the docking groove, enabling the first rotary push block to extend out of the first opening at the moment, and enabling the front sleeve to be in limiting abutting connection with the first rotary push block in the moving stroke of the front sleeve; S2, pushing the first rotating push block to enable the lock sleeve to rotate to a locking position, locking an optical fiber butt joint point of the embedded optical fiber and the optical fiber to be butt-jointed by the core inserting assembly, wherein the first rotating push block is positioned in the front sleeve, the front sleeve and the first rotating push block are staggered in a moving stroke, and the connector main body can be in plug-in fit with the adapter.

Description

Optical fiber connector and optical fiber connection method Technical Field The invention is used in the technical field of optical fiber connection, and particularly relates to an optical fiber connector and an optical fiber connection method. Background The optical fiber connector mainly comprises a through type and an embedded type, wherein the embedded type connector is used for embedding an optical fiber in an inner hole of a core body, at present, on-site construction personnel often forget to lock an optical fiber butt joint assembly in the process of actually using the optical fiber connector, so that an optical path of the optical fiber connector connected to an adapter is unstable and even cannot be used normally, a large amount of time is required for checking and reworking, and the working efficiency is greatly reduced. Disclosure of Invention The invention aims to at least solve one of the technical problems in the prior art and provide an optical fiber connector and an optical fiber connection method, wherein the optical fiber connector has a foolproof function and has high connection efficiency. The technical scheme adopted for solving the technical problems is as follows: The optical fiber connector comprises an inserting core assembly, a connector main body and a front sleeve, wherein the inserting core assembly comprises a lock sleeve and an optical fiber butt joint assembly used for connecting an embedded optical fiber and an optical fiber to be butt-jointed, the lock sleeve is sleeved on the periphery of the optical fiber butt joint assembly and is rotationally connected with the optical fiber butt joint assembly, the connector main body is provided with an inner cavity and a first window communicated with the inner cavity, the outer surface of the lock sleeve is provided with a first rotating push block, the inserting core assembly is arranged in the inner cavity, the first window is used for exposing the first rotating push block and providing a movable space for the first rotating push block, the front sleeve is sleeved on the front end of the connector main body and can move relative to the connector main body along the front-rear direction, a first opening which is opposite to the first window is formed in the front sleeve, when the lock sleeve rotates to an unlocking position, the first rotating push block extends into the first opening, the front sleeve can be staggered with the first rotating push block in the front of the lock sleeve when the lock sleeve rotates to the unlocking position, and the front sleeve is arranged in the rotating position. Preferably, a second rotating push block is arranged on the outer surface of the lock sleeve, a second window communicated with the inner cavity is arranged on the connector body, the second window is used for exposing the second rotating push block and providing a movable space for the second rotating push block, and a second opening opposite to the second window is arranged on the front sleeve. Preferably, the area of the first opening is smaller than the area of the second opening. Preferably, the rear end of the connector body is provided with an optical cable clamping part, and the rear end of the connector body is sleeved with a rear sleeve. Preferably, the connector main body comprises a first shell at the front end and a second shell at the rear end, the ferrule assembly is located in the first shell, a spring is arranged between the ferrule assembly and the second shell, a butt joint part is arranged at the front end of the second shell, the spring is located in the butt joint part, a limit part is arranged at the rear end of the optical fiber butt joint assembly, and the spring is sleeved at the rear end of the optical fiber butt joint assembly and is in butt joint with the limit part. Preferably, the first shell is matched with the second shell, a first clamping groove is formed in the rear end of the first shell, and a first clamping block matched with the first clamping groove is arranged on the outer wall of the abutting portion. Preferably, a guiding groove for extending into the optical fiber to be docked is formed in the second shell, the inner diameter of the guiding groove gradually decreases from the rear end to the front end, the guiding groove is an open guiding groove, the guiding groove is communicated with the docking groove on the optical fiber docking assembly, and a rear sleeve for sealing the guiding groove is arranged on the second shell. Preferably, the optical fiber butt-joint assembly comprises an optical fiber butt-joint platform and a pressing plate, a butt-joint groove for butt-jointing optical fibers is formed on the optical fiber butt-joint platform, the pressing plate is matched with the optical fiber butt-joint platform in a manner of sealing the butt-joint groove, a main convex part is formed on the inner side of the lock sleeve, a plane section and a convex curved section are formed on one side,