Optical fiber caching mechanism based on optical fiber extinction ratio test

Abstract

The utility model discloses an optical fiber caching mechanism based on an optical fiber extinction ratio test, and relates to the technical field of extinction ratio tests. The device comprises a rack and an end wheel carrier, the rack comprises a cross beam, a plurality of support arms are linearly fixed at the top and the bottom of the cross beam, the support arms at the top of the cross beam and the support arms at the bottom of the cross beam are staggered and distributed perpendicular to the cross beam, and first fiber guide wheels staggered with the cross beam are fixed on the front sides of the ends, away from the cross beam, of the support arms. According to the utility model, the support arms and the first fiber guide wheels are arranged in a staggered manner, so that a tested optical fiber can be cached in a snake shape, and the slidable second fiber guide wheels are arranged, so that the end part of the tested optical fiber can be wound for one circle and then tightened, the optical fiber can be fastened and fixed, and the optical fiber is ensured to have certain tension and is prevented from being separated from the fiber guide wheels; therefore, the test optical fiber with the redundant length can be cached, the stability of the test optical fiber is ensured, and the operation of a worker is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of extinction ratio testing, in particular to an optical fiber buffer mechanism based on optical fiber extinction ratio testing. Background Art

[0002] For the test of optical fiber extinction ratio, the test system is mainly composed of an incoherent light source, an adjustable polarizer, a polarization-maintaining mode field adapter, a cladding light stripper and an extinction ratio tester. The two ends of the test optical fiber are connected between the polarization-maintaining mode field adapter and the extinction ratio tester, and a bare fiber section is required on the test optical fiber, that is, the coating layer on the surface of the optical fiber is stripped off and immersed in the cladding light stripper for use.

[0003] The main body of the test optical fiber can be a short optical fiber specially cut and cut for testing, a single optical fiber product with a fixed length, or an optical fiber reel product with a longer length. Since the distance between the polarization-maintaining mode field adapter and the extinction ratio tester is constant and relatively small, the length of the test optical fiber may not match the test optical fiber, that is, the test optical fiber is too long.

[0004] If the test optical fiber is too long, the test site will be cluttered, which is not conducive to sorting and recycling, and the immersion positioning of the bare fiber segment, which is not conducive to the operation of the staff. At the same time, for the optical fiber at the position of the cladding light stripper, if the optical fiber length is too long, it may produce random direction pulling force on the bare fiber segment in the cladding light stripper, affecting the stability of the bare fiber segment position, thereby affecting the test accuracy.

[0005] Therefore, designing a mechanism that can buffer the excess length of an overlong test optical fiber is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a fiber optic caching mechanism based on fiber optic extinction ratio testing, which can cache the test fiber in a snake-like shape through the staggered arrangement of support arms and the arrangement of a first fiber guide wheel, and through the setting of a slidable second fiber guide wheel, the end of the test fiber can be wound around once and then tightened, so that the fiber can be fastened and fixed, ensuring that the fiber has a certain tension to avoid escaping from the fiber guide wheel, so that the excess length of the test fiber can be cached, ensuring the stability of the test fiber, and facilitating the operation of the staff.

[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0008] The utility model is an optical fiber caching mechanism based on optical fiber extinction ratio test, comprising a frame and an end wheel frame;

[0009] The frame comprises a crossbeam, a plurality of arms are linearly fixed to the top and bottom of the crossbeam, the plurality of arms at the top of the crossbeam and the plurality of arms at the bottom of the crossbeam are staggered and vertically distributed to the crossbeam, and a first fiber guide wheel is fixed to the front side of the arm away from one end of the crossbeam, which is displaced from the position of the crossbeam;

[0010] The crossbeam is an I-beam structure, and includes a top side, a bottom side and a vertical side, and a plurality of preset holes are evenly spaced on the vertical side, and the top side, the bottom side and the front side of the vertical side of the crossbeam form a C-shaped groove;

[0011] The end wheel frame includes a C-shaped seat, the C-shaped seat slides along the groove on the front side of the crossbeam, a second fiber guide wheel is fixed to the front side of one end of the C-shaped seat, the second fiber guide wheel is opposite to the first fiber guide wheels and is staggered with the crossbeam and the support arm;

[0012] The other end of the C-shaped seat is provided with a fastening screw, and the C-shaped seat is fixed to the crossbeam through the fastening screw and the preset hole;

[0013] The first fiber guide wheel and the second fiber guide wheel are both I-shaped wheel structures, and the wheel groove height of the second fiber guide wheel is twice the wheel groove height of the first fiber guide wheel.

[0014] Furthermore, it also includes a test optical fiber body, one end of which passes around a plurality of first fiber guide wheels and second fiber guide wheels in sequence, and the test optical fiber body on the second fiber guide wheel spirally passes around the second fiber guide wheel outward to form an overlapping point.

[0015] Furthermore, a plurality of columns are fixed to the bottom of the cross beam, and the plurality of columns are staggered with the plurality of supporting arms at the bottom of the cross beam.

[0016] Furthermore, a plurality of markings are provided on the front side of the crossbeam, wherein the markings are color markings or marking grooves, and the plurality of markings are respectively opposite to the positions of a plurality of preset holes on the crossbeam.

[0017] Furthermore, a screw sleeve is fixed to the inner side of one end of the C-shaped seat away from the second fiber guide wheel, the thread of the fastening screw is arranged in the screw sleeve, and a turning handle is fixed to the screw head end of the fastening screw.

[0018] Furthermore, positioning grooves are provided on the top edge and the bottom edge constituting the channel, and the C-shaped seat is provided with a positioning edge cooperating with the positioning grooves.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model can cache the test optical fiber in a snake-like shape through the staggered arrangement of the support arms and the first fiber guide wheel. Through the arrangement of the slidable second fiber guide wheel, the end of the test optical fiber can be wound around once and then tightened, so that the optical fiber can be fastened and fixed, ensuring that the optical fiber has a certain tension to avoid escaping from the fiber guide wheel, so that the excess length of the test optical fiber can be cached, ensuring the stability of the test optical fiber, and facilitating the operation of the staff.

[0021] 2. The utility model designs the I-beam as a crossbeam, which can form a groove for the end wheel frame to slide. At the same time, the support arm can be quickly connected and fixed to the crossbeam of the I-beam structure through the flange plate, which is beneficial to the processing and production of the entire cache mechanism. At the same time, the entire cache mechanism has a simple structure and low cost.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of an optical fiber buffer mechanism based on optical fiber extinction ratio test of the utility model;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-end wheel frame, 2-crossbeam, 3-support arm, 4-test optical fiber body, 5-column, 101-C-type seat, 102-second fiber guide wheel, 103-fastening screw, 104-screw sleeve, 105-handle, 106-positioning edge, 201-top edge, 202-bottom edge, 203-vertical edge, 204-preset hole, 205-mark, 206-positioning groove, 301-first fiber guide wheel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-2 As shown, the utility model is an optical fiber caching mechanism based on optical fiber extinction ratio test, comprising a frame and an end wheel frame 1;

[0030] The frame includes a crossbeam 2, and a plurality of arms 3 are linearly fixed on the top and bottom of the crossbeam 2. The plurality of arms 3 on the top of the crossbeam 2 and the plurality of arms 3 on the bottom of the crossbeam 2 are staggered and vertically distributed with the crossbeam 2. A first fiber guide wheel 301 which is displaced from the position of the crossbeam 2 is fixed on the front side of the arm 3 away from one end of the crossbeam 2.

[0031] The cross beam 2 is an I-beam structure, and includes a top side 201, a bottom side 202 and a vertical side 203. A plurality of preset holes 204 are evenly spaced on the vertical side 203. The top side 201, the bottom side 202 and the front side of the vertical side 203 of the cross beam 2 form a C-shaped groove.

[0032] The end wheel frame 1 includes a C-shaped seat 101, which slides along the groove on the front side of the crossbeam 2. A second fiber guide wheel 102 is fixed to the front side of one end of the C-shaped seat 101. The second fiber guide wheel 102 is opposite to the first fiber guide wheels 301 and is offset from the crossbeam 2 and the support arm 3.

[0033] A fastening screw 103 is provided at the other end of the C-shaped seat 101, and the C-shaped seat 101 is fixed to the crossbeam 2 through the fastening screw 103 and the preset hole 204;

[0034] The first fiber guide wheel 301 and the second fiber guide wheel 102 are both I-shaped wheel structures, and the wheel groove height of the second fiber guide wheel 102 is twice the wheel groove height of the first fiber guide wheel 301 .

[0035] Among them Figure 1-2 As shown, it also includes a test fiber body 4, one end of which passes through a plurality of first fiber guide wheels 301 and a second fiber guide wheel 102 in sequence, and the test fiber body 4 on the second fiber guide wheel 102 spirally passes through the second fiber guide wheel 102 outward to form an overlapping point.

[0036] Among them Figure 1 As shown, a plurality of columns 5 are fixed at the bottom of the cross beam 2 , and the plurality of columns 5 are offset from the plurality of supporting arms 3 at the bottom of the cross beam 2 .

[0037] Among them Figure 1-2As shown, a plurality of marks 205 are provided on the front side of the crossbeam 2 , the marks 205 are color marks or mark grooves, and the plurality of marks 205 are respectively opposite to the plurality of preset holes 204 on the crossbeam 2 .

[0038] Among them Figure 2 As shown, a screw sleeve 104 is fixed to the inner side of one end of the C-shaped seat 101 away from the second fiber guide wheel 102 , a fastening screw 103 is threadedly arranged in the screw sleeve 104 , and a turning handle 105 is fixed to the screw head end of the fastening screw 103 .

[0039] Among them Figure 2 As shown, positioning grooves 206 are provided on the top edge 201 and the bottom edge 202 constituting the channel, and a positioning edge 106 cooperating with the positioning grooves 206 is provided on the C-shaped seat 101 .

[0040] The working principle of the utility model is as follows: the two ends of the test optical fiber body 4 are respectively connected to the polarization-maintaining mode field adapter and the extinction ratio tester, and the bare fiber section of the test optical fiber body 4 is connected to the cladding light stripper, and the excess length of the test optical fiber body 4 between the cladding light stripper and the extinction ratio tester is passed around the first fiber guide wheel 301 in sequence and passed around the second fiber guide wheel 102 for one circle, and the number of the first fiber guide wheel 301 used is selected according to the excess length, and the end wheel frame 1 is tightened and cached by adjusting the position of the end wheel frame 1 on the crossbeam 2, and the fixation between the end wheel frame 1 and the crossbeam 2 is achieved by tightening the screws 103.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An optical fiber caching mechanism based on optical fiber extinction ratio test, characterized in that: It comprises a frame and an end wheel frame (1); The frame comprises a crossbeam (2), a plurality of arms (3) are linearly fixed on the top and bottom of the crossbeam (2), the plurality of arms (3) on the top of the crossbeam (2) and the plurality of arms (3) on the bottom of the crossbeam (2) are staggered and arranged perpendicular to the crossbeam (2), and a first fiber guide wheel (301) is fixed on the front side of one end of the arm (3) away from the crossbeam (2) and is misaligned with the crossbeam (2); The crossbeam (2) is an I-beam structure, and the crossbeam (2) comprises a top edge (201), a bottom edge (202) and a vertical edge (203), and a plurality of preset holes (204) are evenly spaced on the vertical edge (203), and a C-shaped groove is formed at the front side of the top edge (201), the bottom edge (202) and the vertical edge (203) of the crossbeam (2); The end wheel frame (1) comprises a C-shaped seat (101), the C-shaped seat (101) slides along a groove on the front side of the cross beam (2), a second fiber guide wheel (102) is fixed to the front side of one end of the C-shaped seat (101), the second fiber guide wheel (102) is opposite to the first fiber guide wheels (301) and is offset from the cross beam (2) and the support arm (3); A fastening screw (103) is provided at the other end of the C-shaped seat (101), and the C-shaped seat (101) is fixed to the crossbeam (2) via the fastening screw (103) and the preset hole (204); The first fiber guide wheel (301) and the second fiber guide wheel (102) are both I-shaped wheel structures, and the wheel groove height of the second fiber guide wheel (102) is twice the wheel groove height of the first fiber guide wheel (301).

2. The optical fiber caching mechanism based on optical fiber extinction ratio test according to claim 1, characterized in that: It also includes a test optical fiber body (4), one end of which passes through a plurality of first fiber guide wheels (301) and a second fiber guide wheel (102) in sequence, and the test optical fiber body (4) on the second fiber guide wheel (102) passes through the second fiber guide wheel (102) in a spiral outward and forms an overlapping point.

3. The optical fiber caching mechanism based on optical fiber extinction ratio test according to claim 1, characterized in that: A plurality of upright posts (5) are fixed to the bottom of the cross beam (2), and the plurality of upright posts (5) are misaligned with the plurality of supporting arms (3) at the bottom of the cross beam (2).

4. The optical fiber caching mechanism based on optical fiber extinction ratio test according to claim 1, characterized in that: A plurality of markings (205) are provided on the front side of the crossbeam (2), wherein the markings (205) are color markings or marking grooves, and the plurality of markings (205) are respectively located opposite to a plurality of preset holes (204) on the crossbeam (2).

5. The optical fiber caching mechanism based on optical fiber extinction ratio test according to claim 1, characterized in that: A screw sleeve (104) is fixed on the inner side of one end of the C-shaped seat (101) away from the second fiber guide wheel (102), the fastening screw (103) is threadedly arranged in the screw sleeve (104), and a turning handle (105) is fixed to the screw head end of the fastening screw (103).

6. The optical fiber caching mechanism based on optical fiber extinction ratio test according to claim 1, characterized in that: A positioning groove (206) is provided on the top edge (201) and the bottom edge (202) constituting the channel, and a positioning edge (106) cooperating with the positioning groove (206) is provided on the C-shaped seat (101).

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