CN212111887U

CN212111887U - Polarization-maintaining wave plate type optical fiber coupler

Info

Publication number: CN212111887U
Application number: CN202021176615.7U
Authority: CN
Inventors: 刘合一
Original assignee: Shenzhen Dafu Industrial Co ltd
Current assignee: Shenzhen Dafu Industrial Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-12-08
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to a coupler technical field just discloses a polarization maintaining wave plate type fiber coupler, including coupler body, sleeve pipe and fixed intubate, the left end and the sheathed tube right-hand member intercommunication of coupler body, the first fixture block of sheathed tube front side inner wall fixedly connected with, sheathed tube rear side inner wall fixedly connected with second fixture block, first location elongated slot has been seted up in the front of fixed intubate. The polarization maintaining wave plate type optical fiber coupler solves the problem that the current polarization maintaining wave plate type optical fiber coupler is easy to fall off from an optical fiber in vibration by arranging a fixed insertion tube, a first clamping block, a second clamping block, a first positioning long groove, a first rotary groove, a first clamping groove, a second positioning long groove, a second rotary groove, a second clamping groove, a spring and a push plate, aligning the first positioning long groove and the second positioning long groove with the first clamping block and the second clamping block, inserting the fixed insertion tube into a sleeve, and compressing the spring by the push plate along with the deepening of the fixed insertion tube.

Description

Polarization-maintaining wave plate type optical fiber coupler

Technical Field

The utility model relates to a coupler technical field specifically is a polarization maintaining wave plate formula fiber coupler.

Background

The optical fiber coupler, also called splitter, connector, adapter, optical fiber flange, is an element for realizing optical signal splitting/combining or for extending optical fiber link, belongs to the field of optical passive element, and can be applied to telecommunication network, cable television network, user loop system and local area network.

The current polarization maintaining wave plate type optical fiber coupler has the condition that the optical fiber is easy to fall off, and adopts an internal thread connection mode for improving the condition, and the falling off condition still can occur after the optical fiber is vibrated for a long time.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a polarization-maintaining wave plate fiber coupler possesses and prevents that vibrations from droing, connects the fastening, and the easy advantage of dismantling of optic fibre has solved current polarization-maintaining wave plate fiber coupler and has taken place the problem that drops with optic fibre easily in vibrations.

(II) technical scheme

In order to realize that the aforesaid prevents to shake and drops, connect the fastening, the easy removable purpose of optic fibre, the utility model provides a following technical scheme: a polarization maintaining wave plate type optical fiber coupler comprises a coupler body, a sleeve and a fixed insertion tube, wherein the left end of the coupler body is communicated with the right end of the sleeve, the inner wall of the front side of the sleeve is fixedly connected with a first clamping block, the inner wall of the rear side of the sleeve is fixedly connected with a second clamping block, the front side of the fixed insertion tube is provided with a first positioning long groove, the left end of the first positioning long groove is provided with a first rotating groove, the top end of the first rotating groove is provided with a first clamping groove, the first clamping groove is movably connected with the first clamping block, the first positioning long groove is movably connected with the first clamping block, the back side of the fixed insertion tube is provided with a second positioning long groove, the left end of the second positioning long groove is provided with a second rotating groove, the bottom end of the second rotating groove is provided with a second clamping groove, and the second clamping groove is movably connected with a second clamping block, the second positioning elongated slot is movably connected with a second clamping block, the second rotating slot is movably connected with the second clamping block, the inner wall of the right side of the sleeve is fixedly connected with a spring, the left end of the spring is fixedly connected with a push plate, and the top of the push plate is fixedly connected with a movable block.

Preferably, the bottom of the first clamping groove is communicated with the top end of the first rotating groove, and the right side of the first rotating groove is communicated with the left end of the first positioning long groove.

Preferably, the top of the second clamping groove is communicated with the top end of the second rotating groove, and the right side of the second rotating groove is communicated with the left end of the second positioning long groove.

Preferably, the left end of the fixed insertion tube is provided with an optical fiber cable, and the inside of the fixed insertion tube is fixedly connected with the optical fiber cable.

Preferably, the sheathed tube interior roof and interior diapire all seted up the direction spout, direction spout and movable block sliding connection, the front and the back fixedly connected with stopper of movable block.

Preferably, the front side inner wall and the rear side inner wall of the guide sliding groove are both provided with limiting sliding grooves, and the limiting sliding grooves are movably connected with the limiting blocks.

Compared with the prior art, the utility model provides a polarization maintaining wave plate type optical fiber coupler possesses following beneficial effect:

1. the polarization maintaining wave plate type optical fiber coupler is characterized in that a fixed insertion tube, a first clamping block, a second clamping block, a first positioning long groove, a first rotary groove, a first clamping groove, a second positioning long groove, a second rotary groove, a second clamping groove, a spring and a push plate are arranged, the first positioning long groove and the second positioning long groove are aligned to the first clamping block and the second clamping block, the fixed insertion tube is inserted into a sleeve, the push plate compresses the spring along with the penetration of the fixed insertion tube, when the first clamping block enters the first rotary groove and the second clamping block enters the second rotary groove, the left end of the fixed insertion tube is taken as a reference surface, the fixed insertion tube is rotated clockwise, the first clamping block enters the first clamping groove, the second clamping block enters the second clamping groove, the fixed insertion tube is loosened, the fixed insertion tube moves leftwards under the resilience force of the spring, the first clamping block abuts against the right side of the first clamping groove, the second clamping block abuts against the right side of the second clamping groove, and the fixed, the connection is completed, and the problem that the existing polarization-maintaining wave plate type optical fiber coupler is easy to fall off from an optical fiber in vibration is solved.

2. This polarization maintaining wave plate type optical fiber coupler, through setting up direction spout, spacing spout, movable block and stopper, guaranteed that the push pedal can be linear motion all the time, avoided fixed intubate when the intraduct rotates, drive the push pedal and take place the displacement for the skew ideal state of motion trail of spring.

Drawings

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

fig. 2 is a schematic view of the fixed cannula structure and the cannula structure of the present invention after being connected;

FIG. 3 is an enlarged view of a portion of A in FIG. 1;

FIG. 4 is a rear view of the fixed cannula structure of the present invention;

fig. 5 is a side view of the sleeve structure of the present invention.

Wherein: 1. a coupler body; 2. a sleeve; 3. fixing the cannula; 4. a first clamping block; 5. a first positioning elongated slot; 6. a first rotary groove; 7. a first card slot; 8. a second fixture block; 9. a second positioning elongated slot; 10. a second rotary groove; 11. a second card slot; 12. a spring; 13. pushing the plate; 14. a moving block; 15. a guide chute; 16. a limiting block; 17. and a limiting sliding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a polarization maintaining wave plate type optical fiber coupler, which comprises a coupler body 1, a sleeve 2 and a fixed insertion tube 3, wherein the left end of the coupler body 1 is communicated with the right end of the sleeve 2, the front inner wall of the sleeve 2 is fixedly connected with a first clamping block 4, the rear inner wall of the sleeve 2 is fixedly connected with a second clamping block 8, the side surface of the fixed insertion tube 3 is movably connected with the side surface of the sleeve 2, the left end of the fixed insertion tube 3 is provided with an optical fiber cable, the inside of the fixed insertion tube 3 is provided with a first through groove 6 extending from the left end to the right end, the right end of the optical fiber cable extends from the left side of the fixed insertion tube 3 to the right side, the inside of the fixed insertion tube 3 is fixedly connected with the optical fiber cable, the front of the fixed insertion tube 3 is provided with a first positioning long groove 5, the left end of the first positioning long groove 5 is provided with a first rotation groove 6, the top end, the right side of the first rotary groove 6 is communicated with the left end of the first positioning long groove 5, the first clamping groove 7 is movably connected with the first clamping block 4, the first positioning long groove 5 is movably connected with the first clamping block 4, the first rotary groove 6 is movably connected with the first clamping block 4, the back surface of the fixed insertion tube 3 is provided with a second positioning long groove 9, the first positioning long groove 5 and the second positioning long groove 9 are used for quickly and accurately inserting the fixed insertion tube 3 into the sleeve 2, the left end of the second positioning long groove 9 is provided with a second rotary groove 10, the first rotary groove 6 and the second rotary groove 10 are used for allowing the first clamping block 4 and the second clamping block 8 to pass through when the fixed insertion tube 3 rotates, the bottom end of the second rotary groove 10 is provided with a second clamping groove 11, the top of the second clamping groove 11 is communicated with the top end of the second rotary groove 10, the right side of the second rotary groove 10 is communicated with the left end of the second positioning long groove 9, the second clamping groove 11 is movably connected with the second clamping block 8,

second rotating chute

10 and 8 swing joint of second fixture block, the right side inner wall fixedly connected with spring 12 of sleeve pipe 2, the left end fixedly connected with push pedal 13 of spring 12, the top fixedly connected with movable block 14 of push pedal 13, guide chute 15 has all been seted up to the interior roof and the interior diapire of sleeve pipe 2, guide chute 15 and movable block 14 sliding connection, movable block 14's front and back fixedly connected with stopper 16, limit chute 17 has all been seted up to the front side inner wall and the rear side inner wall of guide chute 15, limit chute 17 and stopper 16 swing joint, through setting up guide chute 15, limit chute 17, movable block 14 and stopper 16, it can be linear motion all the time to have ensured push pedal 13, when having avoided fixed intubate 3 at sleeve pipe 2 internal rotation, it takes place the displacement to drive push pedal 13, make the skew ideal state of the motion orbit of spring 12.

When the inserting device is used, people can align the first positioning long groove 5 and the second positioning long groove 9 with the first clamping block 4 and the second clamping block 8, the fixed inserting tube 3 is inserted into the sleeve 2, the pushing plate 13 compresses the spring 12 along with the penetration of the fixed inserting tube 3, when the first clamping block 4 enters the first rotating groove 6 and the second clamping block 8 enters the second rotating groove 10, the left end of the fixed inserting tube 3 serves as a reference surface, the fixed inserting tube 3 rotates clockwise, the first clamping block 4 enters the first clamping groove 7, the second clamping block 8 enters the second clamping groove 11, the fixed inserting tube 3 is loosened, the fixed inserting tube 3 moves leftwards under the resilience force of the spring 12, the first clamping block 4 supports the right side of the first clamping groove 7, the second clamping block 8 supports the right side of the second clamping groove 11, and the fixed inserting tube 3 cannot move leftwards continuously to complete connection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a polarization-maintaining wave plate formula fiber coupler, includes coupler body (1), sleeve pipe (2) and fixed intubate (3), its characterized in that: the left end of the coupler body (1) is communicated with the right end of the sleeve (2), the inner wall of the front side of the sleeve (2) is fixedly connected with a first clamping block (4), the inner wall of the rear side of the sleeve (2) is fixedly connected with a second clamping block (8), the front of the fixed insertion tube (3) is provided with a first positioning long groove (5), the left end of the first positioning long groove (5) is provided with a first rotary groove (6), the top end of the first rotary groove (6) is provided with a first clamping groove (7), the first clamping groove (7) is movably connected with the first clamping block (4), the first positioning long groove (5) is movably connected with the first clamping block (4), the first rotary groove (6) is movably connected with the first clamping block (4), the back of the fixed insertion tube (3) is provided with a second positioning long groove (9), the left end of the second positioning long groove (9) is provided with a second rotary groove (10), the bottom end of the second rotary groove (10) is provided with a second clamping groove (11), the second clamping groove (11) is movably connected with a second clamping block (8), the second positioning long groove (9) is movably connected with the second clamping block (8), the second rotary groove (10) is movably connected with the second clamping block (8), the inner wall of the right side of the sleeve (2) is fixedly connected with a spring (12), the left end of the spring (12) is fixedly connected with a push plate (13), and the top of the push plate (13) is fixedly connected with a movable block (14).

2. The polarization-maintaining wave plate type optical fiber coupler of claim 1, wherein: the bottom of the first clamping groove (7) is communicated with the top end of the first rotating groove (6), and the right side of the first rotating groove (6) is communicated with the left end of the first positioning length groove (5).

3. The polarization-maintaining wave plate type optical fiber coupler of claim 1, wherein: the top of the second clamping groove (11) is communicated with the top end of the second rotary groove (10), and the right side of the second rotary groove (10) is communicated with the left end of the second positioning long groove (9).

4. The polarization-maintaining wave plate type optical fiber coupler of claim 1, wherein: the left end of the fixed insertion tube (3) is provided with an optical fiber cable, and the inside of the fixed insertion tube (3) is fixedly connected with the optical fiber cable.

5. The polarization-maintaining wave plate type optical fiber coupler of claim 1, wherein: guide sliding grooves (15) are formed in the inner top wall and the inner bottom wall of the sleeve (2), the guide sliding grooves (15) are connected with the moving block (14) in a sliding mode, and limiting blocks (16) are fixedly connected to the front face and the back face of the moving block (14).

6. The polarization-maintaining wave plate type optical fiber coupler of claim 5, wherein: spacing spout (17) have all been seted up to the front side inner wall and the rear side inner wall of direction spout (15), spacing spout (17) and stopper (16) swing joint.