CN219891441U

CN219891441U - Low-loss optical fiber connection structure

Info

Publication number: CN219891441U
Application number: CN202321038223.8U
Authority: CN
Inventors: 肖磊军
Original assignee: Hubei Yuxun Communication Technology Co ltd
Current assignee: Hubei Yuxun Communication Technology Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-10-24
Anticipated expiration: 2033-05-05

Abstract

The utility model provides a low-loss optical fiber connection structure, and belongs to the technical field of optical fiber connection. The structure comprises a male end and a female end, wherein a first optical fiber is arranged in the male end, a second optical fiber is arranged in the female end, a connector is arranged at one end of the male end, a connecting groove is formed in one end of the female end, the connector is inserted into the connecting groove, a movable groove is formed in the center of the end of the connector, the movable groove extends to the inner part of the male end, a connecting core and a spring piece are arranged in the movable groove, a lens is arranged in the connecting core in a clamping mode, one end of the first optical fiber is abutted to one side of the lens, an inserting core is arranged in the center of the connecting groove, one end of the second optical fiber is abutted to the end of the inserting core after being extended to the inner part of the connecting groove, the other end of the inserting core is abutted to the other side of the lens when the male end is inserted into the female end, and the structure of the optical fiber is optimized, so that the end of the optical fiber is abutted tightly abutted to each other, and transmission loss is reduced.

Description

Low-loss optical fiber connection structure

Technical Field

The utility model relates to the technical field of optical fiber connection, in particular to a low-loss optical fiber connection structure.

Background

The optical fiber connector is a device for detachably connecting optical fibers, and precisely connects two end surfaces of the optical fibers, so that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, the influence on a system caused by the intervention of the light energy into an optical link is minimized, and the low-loss property between the transmission of the information quantity of the optical fibers is more and more concerned with the development of optical communication technology.

The existing optical fibers are connected by adopting the insert core to be directly embedded in the plug shell, the structure is relatively simple, after the optical fiber connector is repeatedly plugged and unplugged for many times, the center of the insert core is easy to deviate due to looseness, so that the loss of information transmission is improved, the service life of the optical fiber end is reduced, in addition, the traditional optical fibers are not firmly connected, poor contact is easily caused due to shaking, and the practicability of the connector is affected.

Disclosure of Invention

In order to make up for the defects, the utility model provides a low-loss optical fiber connecting structure, which optimizes the fixing structure of an optical fiber connecting end head, enables the end parts of optical fibers to abut against and butt, and reduces transmission loss.

The utility model is realized in the following way:

the utility model provides a low-loss optical fiber connection structure, includes public end and female end, the inside of public end is provided with first optic fibre, the inside of female end is provided with the second optic fibre, the one end of public end is provided with the connector, the spread groove has been seted up to the one end of female end, the connector peg graft in the inside of spread groove, the movable groove has been seted up at the tip center of connector, the movable groove extends to the inside of public end, the inside of movable groove is provided with connecting core and spring piece, the inside card of connecting core is equipped with the lens, the one end of first optic fibre with one side butt of lens, the inside center of spread groove is provided with the lock pin, the one end of second optic fibre extends to behind the inside of spread groove with the tip butt of lock pin, the other end of lock pin be in the public end insert with the opposite side butt of lens in the female end.

In an embodiment of the utility model, clamping columns are symmetrically arranged on the outer side of the connector, a central shaft of each clamping column is perpendicular to a central shaft of the connector, a first clamping groove is symmetrically formed in the end portion, close to the connecting groove, of the female end, a second clamping groove is formed in one side of the first clamping groove, and the clamping columns are inserted into the second clamping groove after rotating.

In one embodiment of the present utility model, the first clamping groove and the second clamping groove are connected to form an L-shaped structure, the extending direction of the first clamping groove is parallel to the central axis direction of the female end, and the second clamping groove extends along the outer peripheral surface of the female end.

In one embodiment of the utility model, a limiting groove is formed in the movable groove, a limiting plate is arranged at one end of the connecting core, the limiting plate is arranged in the limiting groove in a sliding mode, and one side of the limiting plate is abutted to one side of the limiting groove.

In one embodiment of the utility model, a blind groove is formed in one side of the limiting plate, the spring piece is sleeved on the outer side of the first optical fiber, and two ends of the spring piece are respectively abutted against the inner wall of the blind groove and the inner wall of the movable groove.

In one embodiment of the utility model, a positioning groove is formed in the outer side of the movable groove, a positioning ring is arranged in the outer side of the insert core, one end of the positioning ring is fixedly connected with the bottom wall of the connecting groove, and the positioning ring is in clearance fit with the positioning groove.

In one embodiment of the utility model, a first sheath is disposed at an end of the male end away from the connector, and an end of the first optical fiber away from the lens extends outward through the first sheath.

In one embodiment of the present utility model, a second sheath is disposed at an end of the female end away from the connection groove, and an end of the second optical fiber away from the ferrule extends outward through the second sheath.

The low-loss optical fiber connecting structure obtained by the design has the beneficial effects that:

(1) The connecting core is kept in an ejection state through the spring piece, so that the first optical fiber and the second optical fiber are kept in butt joint with two sides of the lens, the stability of butt joint of the optical fibers is improved, the situation that the axis of the inserting core is deviated is avoided, the loss of the optical fiber connection in the signal transmission process is reduced, and the stable operation of the communication system is kept.

(2) The clamping column on the male end is matched with the L-shaped clamping groove on the female end, so that the end connection is firmer, the problem of poor contact of the connecting part caused by shaking is prevented, the assembly and disassembly operations are simple and convenient, and the practicability is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a low-loss optical fiber connection structure according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a male end according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a female end according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a low-loss optical fiber connection structure according to an embodiment of the present utility model.

In the figure: 10. a male end; 101. a connector; 1011. a clamping column; 102. a movable groove; 1021. a limit groove; 103. a connecting core; 1031. a limiting plate; 1032. a blind groove; 104. a spring member; 105. a lens; 106. a positioning groove; 107. a first sheath; 108. a first optical fiber; 20. a female end; 201. a connecting groove; 2011. a core insert; 2012. a positioning ring; 202. a first clamping groove; 203. a second clamping groove; 204. a second sheath; 205. and a second optical fiber.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a low-loss optical fiber connection structure, including public end 10 and female end 20, the inside of public end 10 is provided with first optic fibre 108, the inside of female end 20 is provided with second optic fibre 205, the one end of public end 10 is provided with connector 101, the spread groove 201 has been seted up to the one end of female end 20, connector 101 is pegged graft in the inside of spread groove 201, public end 10 and female end 20 peg graft each other, make first optic fibre 108 and second optic fibre 205 tip butt joint, realize the connection transmission of optical communication signal, movable groove 102 has been seted up at the tip center of connector 101, movable groove 102 extends to the inside of public end 10, the inside of movable groove 102 is provided with connecting core 103 and spring part 104, connecting core 103 activity sets up in the inside of movable groove 102, spring part 104 acts on the tip of connecting core 103, make the tip of two optic fibres keep supporting tight state, reduce the light path transmission loss, the inside card of connecting core 103 is equipped with lens 105, one end and one side butt joint of lens 105 of connecting groove 201, the inside center of inside of spread groove 201 is provided with the lock core 2011, the one end of second optic fibre 205 extends to the inside of spread groove 201 and the inside of spread groove 201, the inside of spread groove 205 and the tip is more in contact with the tip of light path 105, the tip is more stable when the tip is more connected with the tip of light-condensing core 2011, the tip is more connected in the opposite side of the light path 105, the tip is more stable, the light path is realized, the light path is more stable, the light path is connected with the tip is more stable, the tip is connected with the tip end of the tip is more inside of the tip, and can be more stable, and can be connected, and can be more stable.

As an embodiment of the present utility model, further, a clamping column 1011 is symmetrically disposed on the outer side of the connector 101, a central axis of the clamping column 1011 is perpendicular to a central axis of the connector 101, a first clamping groove 202 is symmetrically disposed at an end portion of the female end 20 near the connecting groove 201, a second clamping groove 203 is disposed at one side of the first clamping groove 202, the clamping column 1011 is inserted from the first clamping groove 202 and then is rotationally clamped into the second clamping groove 203, the male end 10 and the female end 20 are firmly connected through cooperation of the clamping column 1011 and two groups of clamping grooves, shaking of the connecting end is prevented, bad contact is avoided, overhaul frequency is reduced, time and labor are saved, and practicality is strong.

As an embodiment of the present utility model, further, the first clamping groove 202 and the second clamping groove 203 are connected to form an "L" structure, the extending direction of the first clamping groove 202 is parallel to the central axis direction of the female end 20, the second clamping groove 203 extends along the outer peripheral surface of the female end 20, and the L-shaped groove formed by the first clamping groove 202 and the second clamping groove 203 facilitates the clamping of the clamping column 1011, and is convenient to operate and easy to assemble and disassemble.

As an embodiment of the present utility model, further, a limiting slot 1021 is formed in the movable slot 102, a limiting board 1031 is disposed at one end of the connection core 103, the limiting board 1031 is slidably disposed in the limiting slot 1021, one side of the limiting board 1031 abuts against one side of the limiting slot 1021, the cooperation between the limiting slot 1021 and the limiting board 1031 limits the axial movement of the connection core 103, so as to prevent the connection core 103 from being deviated, maintain the central alignment state, and ensure the stability of optical fiber transmission.

As an embodiment of the present utility model, further, a blind slot 1032 is formed on one side of the limiting board 1031, the spring member 104 is sleeved on the outer side of the first optical fiber 108, two ends of the spring member 104 are respectively abutted against the inner wall of the blind slot 1032 and the inner wall of the movable slot 102, the spring member 104 adopts a compression spring, and the connection core 103 is kept at a position, so that the ferrule 2011 can be abutted against the lens 105, thereby communicating the optical fiber signal transmission path and reducing loss.

As an embodiment of the present utility model, further, a positioning groove 106 is formed on the outer side of the movable groove 102, a positioning ring 2012 is disposed on the outer side of the ferrule 2011, one end of the positioning ring 2012 is fixedly connected with the bottom wall of the connecting groove 201, the positioning ring 2012 is in clearance fit with the positioning groove 106, the height of the positioning ring 2012 is greater than that of the ferrule 2011, and when the end socket is inserted, the positioning ring 2012 is inserted into the positioning groove 106 to provide guiding and limiting for the ferrule 2011, so as to prevent eccentricity.

As an embodiment of the present utility model, further, the end of the male end 10 far away from the connector 101 is provided with the first sheath 107, and the end of the first optical fiber 108 far away from the lens 105 extends outwards after penetrating through the first sheath 107, and the first sheath 107 wraps the outer surface of the first optical fiber 108, so that the connection strength between the first optical fiber 108 and the end of the male end 10 is improved.

As an embodiment of the present utility model, further, the end of the female end 20 away from the connection slot 201 is provided with a second sheath 204, and the end of the second optical fiber 205 away from the ferrule 2011 extends outwards after penetrating through the second sheath 204, where the second sheath 204 acts the same as the first sheath 107, so as to improve the connection strength between the second optical fiber 205 and the end of the female end 20.

Specifically, the use principle of the low-loss optical fiber connection structure is as follows: the optical fibers to be connected are respectively arranged at two ends of the optical fibers to be connected into the male end 10 and the female end 20, the connector 101 at the end part of the male end 10 is inserted into the connecting groove 201 on the female end 20, any one end is rotated to enable the clamping columns 1011 at two sides of the connector 101 to be aligned with and inserted into the first clamping grooves 202, then the male end 10 is rotated along the direction of the second clamping grooves 203 to enable the clamping columns 1011 to be clamped into the second clamping grooves 203, the positioning ring 2012 is inserted into the positioning grooves 106 to guide the connector 101 in the inserting process, the central inserting core 2011 can be accurately inserted from the end part of the connecting core 103 and is abutted with the lenses 105 in the connecting core to realize the butt joint of the optical fibers, the optical paths carried by the transmitting optical fibers are transmitted to the receiving optical fibers after being collected by the lenses 105, the loss of optical path signals is reduced, and the connection is stable and reliable.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a low-loss optical fiber connection structure, includes public end (10) and female end (20), its characterized in that, the inside of public end (10) is provided with first optic fibre (108), the inside of female end (20) is provided with second optic fibre (205), the one end of public end (10) is provided with connector (101), spread groove (201) have been seted up to the one end of female end (20), connector (101) peg graft in the inside of spread groove (201), movable groove (102) have been seted up at the tip center of connector (101), movable groove (102) extend to the inside of public end (10), the inside of movable groove (102) is provided with connecting core (103) and spring part (104), the inside card of connecting core (103) is equipped with lens (105), the one end of first optic fibre (108) with one side butt of lens (105), the inside center of spread groove (201) is provided with lock core (2011), the one end of second optic fibre (205) extend to the inside of spread groove (201) after the butt with the inside of lens (2011) with the other end (2011) insert core (10).

2. The low-loss optical fiber connection structure according to claim 1, wherein clamping columns (1011) are symmetrically arranged on the outer side of the connector (101), a central axis of each clamping column (1011) is perpendicular to a central axis of the connector (101), a first clamping groove (202) is symmetrically formed at an end portion, close to the connecting groove (201), of the female end (20), a second clamping groove (203) is formed at one side of the first clamping groove (202), and the clamping columns (1011) are rotatably clamped into the second clamping groove (203) after being inserted from the first clamping groove (202).

3. A low-loss optical fiber connection structure according to claim 2, wherein the first and second clamping grooves (202, 203) are connected to form an "L" -shaped structure, the extending direction of the first clamping groove (202) is parallel to the central axis direction of the female end (20), and the second clamping groove (203) extends along the outer peripheral surface of the female end (20).

4. The low-loss optical fiber connection structure according to claim 1, wherein a limit groove (1021) is formed in the movable groove (102), a limit plate (1031) is arranged at one end of the connection core (103), the limit plate (1031) is slidably arranged in the limit groove (1021), and one side of the limit plate (1031) is abutted to one side of the limit groove (1021).

5. The low-loss optical fiber connection structure according to claim 4, wherein a blind groove (1032) is formed in one side of the limiting plate (1031), the spring member (104) is sleeved on the outer side of the first optical fiber (108), and two ends of the spring member (104) are respectively abutted to the inner wall of the blind groove (1032) and the inner wall of the movable groove (102).

6. The low-loss optical fiber connection structure according to claim 1, wherein a positioning groove (106) is formed in the outer side of the movable groove (102), a positioning ring (2012) is arranged in the outer side of the ferrule (2011), one end of the positioning ring (2012) is fixedly connected with the bottom wall of the connection groove (201), and the positioning ring (2012) is in clearance fit with the positioning groove (106).

7. A low-loss optical fiber connection according to claim 1, wherein the male end (10) is provided with a first sheath (107) at an end remote from the connector (101), and the end of the first optical fiber (108) remote from the lens (105) extends outwards through the first sheath (107).

8. A low-loss optical fiber connection according to claim 1, wherein the female end (20) is provided with a second sheath (204) at an end remote from the connection groove (201), and the second optical fiber (205) extends outwardly through the second sheath (204) at an end remote from the ferrule (2011).